DE102007053664A1 - Optical sensor for the detection of ions, gases and biomolecules, comprises a matrix with indicator dyes consisting of thin layer of ionic fluids, which is absorbed with the indicator dyes in inert or reactive thin carrier material - Google Patents
Optical sensor for the detection of ions, gases and biomolecules, comprises a matrix with indicator dyes consisting of thin layer of ionic fluids, which is absorbed with the indicator dyes in inert or reactive thin carrier material Download PDFInfo
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- DE102007053664A1 DE102007053664A1 DE102007053664A DE102007053664A DE102007053664A1 DE 102007053664 A1 DE102007053664 A1 DE 102007053664A1 DE 102007053664 A DE102007053664 A DE 102007053664A DE 102007053664 A DE102007053664 A DE 102007053664A DE 102007053664 A1 DE102007053664 A1 DE 102007053664A1
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- optical sensors
- sensors according
- ionic liquid
- indicator dyes
- optical
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- VSSSHNJONFTXHS-UHFFFAOYSA-N coumarin 153 Chemical compound C12=C3CCCN2CCCC1=CC1=C3OC(=O)C=C1C(F)(F)F VSSSHNJONFTXHS-UHFFFAOYSA-N 0.000 description 2
- 150000001907 coumarones Chemical class 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- TYNBFJJKZPTRKS-UHFFFAOYSA-N dansyl amide Chemical compound C1=CC=C2C(N(C)C)=CC=CC2=C1S(N)(=O)=O TYNBFJJKZPTRKS-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- VOFUROIFQGPCGE-UHFFFAOYSA-N nile red Chemical compound C1=CC=C2C3=NC4=CC=C(N(CC)CC)C=C4OC3=CC(=O)C2=C1 VOFUROIFQGPCGE-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000007793 ph indicator Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- RCYFOPUXRMOLQM-UHFFFAOYSA-N pyrene-1-carbaldehyde Chemical compound C1=C2C(C=O)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 RCYFOPUXRMOLQM-UHFFFAOYSA-N 0.000 description 2
- 238000003380 quartz crystal microbalance Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000004861 thermometry Methods 0.000 description 2
- 229940043798 zincon Drugs 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- OUEIPKXVZRHNIB-UHFFFAOYSA-N 1-(3-pyren-1-ylpropyl)pyrene Chemical compound C1=C2C(CCCC=3C4=CC=C5C=CC=C6C=CC(C4=C65)=CC=3)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 OUEIPKXVZRHNIB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical group 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
- C07D213/20—Quaternary compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
- C09B11/10—Amino derivatives of triarylmethanes
- C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/08—Naphthalimide dyes; Phthalimide dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
Description
Die Erfindung betrifft die Herstellung von dünnen optischen Sensorschichten, mit welchen es möglich ist, in kürzester Zeit, in kontinuierlichem Verfahren, aufwandgering, möglichst umweltverträglich und gut handhabbar, auf reproduzierbare Weise Analyte, insbesondere Ionen, Gase und Biomoleküle nachzuweisen. Einsatzmöglichkeiten ergeben sich beispielsweise in der Medizin und Pharmazie, in der Bio- und Materialwissenschaft, bei der Umweltkontrolle sowie für den Nachweis von in Natur und Technik vorkommenden organischen und anorganischen Mikroproben.The The invention relates to the production of thin optical Sensor layers with which it is possible in the shortest possible time Time, in a continuous process, with little effort, if possible Environmentally friendly and easy to handle, reproducible Way analytes, especially ions, gases and biomolecules demonstrated. Applications arise, for example in medicine and pharmacy, in biology and materials science, in the environmental control as well as for the detection of in nature and technology occurring organic and inorganic micro samples.
Es
sind bereits optische Sensoren bekannt, welche auf der Einbettung
von Indikatorfarbstoffen in eine Polymermatrix basieren. So werden
Indikatorfarbstoffe oder Chemosensoren zum Beispiel in weichgemachtem
PVC oder weichgemachter Ethylcellulose gelöst und somit
Sensorschichten zur Bestimmung von Ionen und Gasen erhalten (
Auch
werden Indikatorfarbstoffe oder chromogene bzw. fluoreszierende
Chemosensoren z. B. in Polystyrol, Poly(methylmethacrylat), Silikon
oder Poly(dimethylsiloxan) gelöst. Diese Materialien sind
allerdings nur für die Detektion von Gasen geeignet, da
Ionen in diese hydrophoben Materialien nicht eindiffundieren können
(
Es
wurden auch Indikatorfarbstoffe oder chromogene bzw. fluoreszierende
Chemosensoren in Polyacrylamid, Poly(vinylalkohol) oder Poly(hydroxyethylmethacrylat)
gelöst. Diese Polymere ermöglichen das Messen
von Gasen und von Ionen in wässriger Lösung. Die
Polymere sind aber sehr hydrophil und quellen sehr stark in Wasser,
so dass Farbstoffe aus dieser Matrix leicht ausgewaschen werden
können (
Es
wurden auch Indikatorfarbstoffe oder chromogene bzw. fluoreszierende
Chemosensoren in eine Sol-Gel bzw. Ormosil (Organically Modified
Siloxan) Matrix eingebettet. Diese Materialien zeigen aber zum einen
eine hohe Brüchigkeit, sodass durch Glassbruchstücke
Gefahren bei der praktischen Anwendung für den Benutzer
auftreten können. Des Weiteren sind diese Materialen durch
ein starkes Alter gekennzeichnet, was auf eine kontinuierliche strukturelle
Veränderung (z. B. Hydrolyse) des Sol-Gel bzw. Ormosil
Materials nach der Herstellung zurückzuführen
ist. Diese strukturelle Veränderung kann Monate dauern
und fürt zur Drift von Messsignalen und zu instabilen Messungen
bei optischen Sensoren (
Es
wurden bereits Farbstoffe in Ionischen Flüssigkeiten gelöst.
Ionische Flüssigkeiten (Salzschmelzen) sind Flüssigkeiten,
die im Gegensatz zu molekularen Lösungsmitteln zumindest
formal vollständig aus Anionen und Kationen bestehen (
Ionische
Flüssigkeiten können mit der allgemeingültigen
Formel 1 beschrieben werden:
Die
Farbstoffe, welche in Ionischen Flüssigkeiten gelöst
wurden, dienten allerdings zur Charakterisierung der Eigenschaften
der Ionischen Flüssigkeiten. Im Speziellen wurde die Polarität
der Ionischen Flüssigkeiten mit Hilfe von solvatochromen
Farbstoffen untersucht (
Gary
A. Baker und Koautoren haben ein optisches Thermometer entwickelt,
welches auf der reversiblen temperaturabhängigen Monomer-Excimer
Interkonversion von 1,3-bis(1-pyrenyl)propan in einer Ionischen Flüssigkeit
basiert. Dieses System ist allerdings nur zur Messung von Temperaturänderungen
geeignet (
Es
wurden bereits Sensoren entwickelt, welche auf Ionischen Flüssigkeiten
basieren (
Ozlem
Oter und Koautoren (
Ähnlich
wie Oter et al. haben Afsaneh Safavi und Koautoren (
Der Erfindung liegt die Aufgabe zu Grunde, neue möglichst umweltverträgliche, langzeitbeständige und gut handhabbare Sensoren zu schaffen, mit denen universell anwendbar Ionen, Gase und Biomoleküle selektiv und sensitiv durch kontinuierliches, rasches sowie reproduzierbares Messen mit hoher Nachweisgenauigkeit detektiert werden können.Of the The invention is based on the object, new environmentally friendly as possible, to create long-term stable and easy to handle sensors, with which universally applicable ions, gases and biomolecules selective and sensitive by continuous, rapid and reproducible Measurements can be detected with high accuracy of detection.
Die neuen Sensoren sollen dabei möglichst gut abbaubar und möglichst nicht toxisch sein sowie auch möglichst keine toxischen Zersetzungsprodukte aufweisen. Die Sensoren sollen universell, schnell und kontinuierlich zuverlässige Nachweisreaktionen zur Detektion von Analytmolekülen in der Medizin und Pharmazie, in der Bio- und Materialwissenschaft, bei der Umweltkontrolle sowie für den Nachweis von in Natur und Technik vorkommenden organischen und anorganischen Mikroproben ermöglichen.The new sensors are thereby as well as possible degradable and preferably not be toxic as well as possible have no toxic decomposition products. The sensors should universal, fast and continuous reliable detection reactions for the detection of analyte molecules in medicine and pharmacy, in of biology and materials science, in environmental control as well for the detection of occurring in nature and technology allow organic and inorganic micro samples.
Zur Lösung dieser Aufgabe werden optische Sensoren vorgeschlagen, die einen oder mehrere Indikatorfarbstoffe in zumindest einer dünnen Schicht von Ionischer Flüssigkeit als Matrix enthalten. Überraschend hat sich gezeigt, dass ein oder mehrere an sich bekannte Indikatorfarbstoffe in dünnen Schichten (insbesondere kleiner oder viel kleiner als 100 um) von ionischen Flüssigkeiten rasch, reversibel und kontinuierlich Ionen, Gase, und Biomoleküle detektieren und in dieser Matrix eine zuverlässige quantitative und qualitative Bestimmung derselben ermöglichen.to Solution to this problem, optical sensors are proposed the one or more indicator dyes in at least one thin Layer of ionic liquid as a matrix included. Surprisingly have been shown that one or more known indicator dyes in thin layers (especially smaller or much smaller as 100μm) of ionic liquids rapidly, reversibly and continuously detect ions, gases, and biomolecules and in this matrix a reliable quantitative and Qualitative determination allow the same.
Im
Gegensatz zum beschriebenen Stand der Technik (
Die Ionischen Flüssigkeiten werden entweder direkt auf einen Träger aufgetragen und über eine optische Kopplung mittels Photometer, optischer Faser oder Leuchtdioden, Laserdioden und Photodioden spektral charakterisiert, oder die Indikatorfarbstoff-haltigen ionischen Flüssigkeiten werden in einem inerten oder reaktivem Trägermaterial (wie zum Beispiel Kieselgel, mikro- oder nanoporöses Silikat, Aluminiumoxid mikroporöses PTFE, PVC, Polyurethan Hydrogel, etc.) physikalisch immobilisiert.The Ionic liquids are either directly on one Carrier applied and via an optical coupling by means of photometer, optical fiber or light-emitting diodes, laser diodes and photodiodes spectrally characterized, or the indicator dye-containing ionic liquids are in an inert or reactive Support material (such as silica gel, micro- or nanoporous silicate, aluminum oxide microporous PTFE, PVC, polyurethane hydrogel, etc.) physically immobilized.
Im besonderen hat sich gezeigt, dass Ionen und geladene Biomoleküle, wie z. B. Aminosäuren in die Matrix auf Basis der Ionischen Flüssigkeit sehr gut eindiffundieren und dann mittels der besagten Indikatorfarbstoffe schnell, sensitiv und selektiv detektiert werden können, während die Ionen und geladenen Biomoleküle in Polymere, z. B. Polyvinylchlorid, Polystyren, Polymethylmethacrylat, wie nachteilig bekannt, nicht oder nur schwer eindiffundieren, und damit eine optische Detektion nicht oder kaum möglich ist.In particular, it has been shown that ions and charged biomolecules such. For example, amino acids can diffuse very well into the matrix based on the ionic liquid and can then be rapidly, sensitively and selectively detected by means of said indicator dyes, while the ions and charged biomolecules in polymers, e.g. As polyvinyl chloride, polystyrene, polymethyl methacrylate, as known disadvantageously, diffuse or difficult to diffuse, and thus an optical detection is not or hardly possible.
Für spezielle Sensormaterialien (z. B. mit sehr hoher Wirkstabilität und Lagerfähigkeit) kann es hingegen zweckmäßig sein, wenn der Indikatorfarbstoff in der Ionischen Flüssigkeit unter kovalenter Anbindung an einen porösen Träger der Matrix oder unmittelbar an die Ionische Flüssigkeit immobilisiert wird.For special sensor materials (eg with very high active stability and shelf life), however, it may be appropriate be when the indicator dye in the ionic liquid covalently attached to a porous support the matrix or directly to the ionic liquid is immobilized.
Ionische Flüssigkeiten werden zu sog. "grünen Chemikalien" mit hoher Umweltverträglichkeit gezählt, so dass die Matrix der vorgeschlagenen optischen Sensoren an sich gegenüber vielen anderen Sensormaterialien (sofern nicht für spezielle Nachweise umweltbedenkliche und ggf. schwer abbaubare spezifische Indikatorfarbstoffe zum Einsatz kommen müssen) eine vergleichsweise gute Umweltverträglichkeit aufweist.Ionian Liquids become so-called "green chemicals" counted with high environmental impact, so that the matrix of the proposed optical sensors per se many other sensor materials (unless for special Evidence of environmental and possibly poorly degradable specific Indicator dyes must be used) a comparatively has good environmental compatibility.
Für
die vorliegende Erfindung interessante Ionische Flüssigkeiten
(Kationen) beinhalten außer Kohlenstoff- und Wasserstoffatomen
mindestens ein Heteroatom, mit dem die kationische Funktionalität
im Wesentlichen verbunden ist, z. B. Tetraalkylammonium oder -phosphonium.
Besonders interessant sind jene organischen Kationen, die aus einem
heterozyklischen, insbesondere einem heteroaromatischen System bestehen,
in dem die Ladung über das gesamte heteroaromatische System
oder Teile davon verteilt (delokalisiert) ist. Beispiele hierfür
sind das 1-Alkyl-3-Methylimidazolium oder N-Alkylpyridinium. Der
Ausdruck „Heteroatom" steht für ein Atom aus der
5. oder 6. Hauptgruppe des Periodensystems, im Besonderen für
Stickstoff, Phosphor, Sauerstoff und Schwefel. „Heteroaromatische
Systeme" sind Ringsysteme, die den allgemein bekannten Regeln der
Aromatizität gehorchen, also pseudoaromatisch sind. „Heterozyklische
Systeme" sind Ringsysteme, bei denen keine Aromatizität
vorliegt. (
Als Indikatorfarbstoffe zur Aufnahme in die Ionische Flüssigkeit werden beispielhaft Sodium Green zur Bestimmung von Natrium, Lucigenin zur Bestimmung von Chlorid, Nilblau zur Bestimmung von pH-Werten, Ruthenium-, Palladium- und Platin-Komplexe mit Porphyrinen und Phenanthrolinen zur Bestimmung von Sauerstoff, Farbstoffe mit Trifluoracetylgruppen zur Bestimmung von Aminen, Alkoholen, Thiolen und Aminosäuren, Farbstoffe mit Boronsäuregruppen zur Bestimmung von Zuckern und Katecholaminen sowie Farbstoffe mit Aldehydgruppen zur Bestimmung von Aminen, Aminosäuren und Organo-Phosphaten eingesetzt.When Indicator dyes for inclusion in the ionic liquid are exemplified Sodium Green for the determination of sodium, lucigenin for the determination of chloride, Nile blue for the determination of pH values, ruthenium, Palladium and platinum complexes with porphyrins and phenanthrolines for the determination of oxygen, dyes with trifluoroacetyl groups for the determination of amines, alcohols, thiols and amino acids, Dyes with boronic acid groups for the determination of sugars and catecholamines and dyes with aldehyde groups for determination used by amines, amino acids and organo-phosphates.
In den Unteransprüchen sind vorteilhafte Ausführungsmerkmale zu den erfindungsgemäßen Sensoren sowie zu deren Herstellung und Verwendung angegeben. Der Schutzumfang der Erfindung ist nicht auf diese Merkmale beschränkt.In The dependent claims are advantageous embodiments to the sensors according to the invention and to their Production and use indicated. The scope of the invention is not limited to these features.
Die Erfindung soll nachstehend anhand von vier Ausführungsbeispielen mit jeweils unterschiedlichen Indikatorfarbstoffen in der Matrix aus Ionischer Flüssigkeit näher erläutert werden.The Invention will be described below with reference to four embodiments each with different indicator dyes in the matrix from ionic liquid explained in more detail become.
Beispiel 1:Example 1:
Ein Indikatorfarbstoff gemäß nachstehender Formel 3 zur Detektion von Aminen, Aminosäuren, Alkoholen, Phenolen und Thiolen wird in einer lipophilen Ionischen Flüssigkeit gelöst und auf einen transparenten Träger aufgetropft. Danach wird ein Überschuss an ionischer Flüssigkeit durch Zentrifugieren des Trägers entfernt und die auf dem Träger befindliche resultierende dünne Sensorschicht (typischerweise in einer Schichtdicke von 5 Mikrometer) in eine Durchflusszelle eingebaut. Diese Durchflusszelle erlaubt ein kontinuierliches Vorbeifließen der Probelösung an der Sensorschicht bei gleichzeitiger Messung der Fluoreszenz der Sensorschicht. Die Probelösung mit unbekannter Aminosäurenkonzentration wird an der Sensorschicht vorbeigeleitet und die resultierenden Fluoreszenzänderungen mittels eines Fluoreszenzspektrometers quantifiziert.One Indicator dye according to the following formula 3 for the detection of amines, amino acids, alcohols, phenols and thiols is in a lipophilic ionic liquid dissolved and dripped onto a transparent support. Thereafter, an excess of ionic liquid removed by centrifuging the carrier and placed on the Carrier resulting thin sensor layer (typically in a layer thickness of 5 microns) in one Flow cell installed. This flow cell allows continuous flow past the sample solution at the sensor layer at the same time Measurement of the fluorescence of the sensor layer. The trial solution with unknown amino acid concentration is at the sensor layer passed by and the resulting fluorescence changes quantified by means of a fluorescence spectrometer.
Beispiel 2:Example 2:
Ein Indikatorfarbstoff gemäß nachstehender Formel 4 zur Detektion von Aldehyden und Organophosphaten wird in einer Ionischen Flüssigkeit gelöst und in diese Lösung die Spitze einer optischen Faser eingetaucht. Die andere Seite derselben optischen Faser wird mit einer Lichtquelle und einem Detektor optisch verbunden. Durch Eintauchen der optischen Faser mit der Sensorschicht in eine Probenlösung unbekannter Aldehyd-Konzentration kommt es zu einer Fluoreszenzänderung des Farbstoffes in der Ionischen Flüssigkeit, welche über die optische Faser zum Detektor geleitet, quantifiziert, und mit der Aldehyd-Konzentration korreliert wird.One Indicator dye according to the following formula 4 for the detection of aldehydes and organophosphates is in a Dissolved ionic liquid and into this solution immersed the tip of an optical fiber. The other side of it Optical fiber is optical with a light source and a detector connected. By immersing the optical fiber with the sensor layer in a sample solution of unknown aldehyde concentration there is a change in the fluorescence of the dye in the ionic liquid, which over the optical Fiber passed to the detector, quantified, and with the aldehyde concentration is correlated.
Beispiel 3:Example 3:
Ein Indikatorfarbstoff gemäß nachstehender Formel 5 zur Detektion von Natrium-Ionen wird zusammen mit einer Ionischen Flüssigkeit in Alkohol gelöst. In diese Lösung wird eine dünne Schicht von porösem Aluminiumoxid getaucht, sodass die Poren mit dieser Lösung befüllt werden. Nach Verdampfen des Alkohols erhält man eine dünne Schicht Aluminiumoxid, welche mit Farbstoff in Ionischer Flüssigkeit getränkt ist. Diese Schicht kann nun in eine Probelösung getaucht werden, welche Natrium-Ionen enthalten. Dabei kommt es zu einer Fluoreszenzänderung der Sensorschicht, welche mit Hilfe eines Fluoreszenzspektrometers quantifiziert wird.One Indicator dye according to the following formula 5 for the detection of sodium ions is used together with an ionic Liquid dissolved in alcohol. In this solution becomes a thin layer of porous alumina immersed so that the pores fill with this solution become. After evaporation of the alcohol gives a thin Layer of alumina, which with dye in ionic liquid is soaked. This layer can now be in a trial solution be dipped, which contain sodium ions. It happens to a change in fluorescence of the sensor layer, which quantified with the aid of a fluorescence spectrometer.
Beispiel 4:Example 4:
Ein Indikatorfarbstoff gemäß nachstehender Formel 6 zur Detektion von Sacchariden und Katecholaminen wird zusammen mit einer Ionischen Flüssigkeit in Alkohol gelöst und diese Lösung in die Vertiefungen einer Mikrotiterplatte pipettiert. Nach Verdampfen des Alkohols befinden sich am Boden der Vertiefungen dünne Schichten des optischen Sensors (typischerweise in einer Schichtdicke von 5 μm). Zur Durchführung der Messung wird eine Probelösung unbekannter Zuckerkonzentration in die Vertiefungen der Mikrotiterplatte gefüllt, und die Fluoreszenzänderungen der Sensorschichten gemessen und quantifiziert.One Indicator dye according to the following formula 6 for the detection of saccharides and catecholamines is combined dissolved in alcohol with an ionic liquid and this solution in the wells of a microtiter plate Pipette. After evaporation of the alcohol are on the ground the wells thin layers of the optical sensor (typically in a layer thickness of 5 microns). To carry out The measurement becomes a sample solution of unknown sugar concentration filled in the wells of the microtiter plate, and the Measured fluorescence changes of the sensor layers and quantified.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004040016 [0021] - DE 102004040016 [0021]
Zitierte Nicht-PatentliteraturCited non-patent literature
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- - Ozlem Oter et al.: Characterization of a newly synthesized fluorescent benzofuran derivative and usage as a selective fiber optic sensor for Fe(III), Sensors and Actuators B Chemical, 122, 2007, 450–456 [0002] Ozlem Oter et al .: Characterization of a newly synthesized fluorescent benzofuran derivative and usage as a selective fiber optic sensor for Fe (III), Sensors and Actuators B Chemical, 122, 2007, 450-456 [0002]
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- - Tobias Werner et al.: Ammonia-sensitive polymer matrix employing immobilized indicator ion-pairs, Analyst 120, 1995, 1627–1631 [0003] Tobias Werner et al .: Ammonia-sensitive polymer matrix employing immobilized indicator ion-pairs, Analyst 120, 1995, 1627-1631 [0003]
- - Gerhard J. Mohr et al.: Development of chromogenic copolymers for optical detection of amines, Advanced Materials 10, 1998, 1353–1357 [0003] Gerhard J. Mohr et al .: Development of Chromogenic Copolymer for Optical Detection of Amines, Advanced Materials 10, 1998, 1353-1357 [0003]
- - J. Ji et al.: Fiber optic pH/Ca2+ fluorescence microsensor based an spectral processing of sensing signals, Analytica Chimica Acta 397, 1999, 93–102 [0004] Ji et al .: Fiber optic pH / Ca2 + fluorescence microsensor based on spectral processing of sensing signals, Analytica Chimica Acta 397, 1999, 93-102 [0004]
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- - Ingo Klimant et al.: Fast response Oxygen microoptodes based an novel soluble ormosil glasses, Mikrochimica Acta 131, 1999, 35–46, Aleksandra Lobnik et al.: Optical pH sensor based an the absorption of antenna generated europium luminescence by bromothymolblue in a sol-gel membrane, Sensors and Actuators B 74, 2001, 200–206 [0005] - Ingo Klimant et al .: Fast response Oxygen microoptodes based on novel soluble ormosil glasses, Microchimica Acta 131, 1999, 35-46, Aleksandra Lobnik et al .: Optical pH sensor based on the absorption of europium luminescence generated by bromothymolblue in a sol-gel membrane, Sensors and Actuators B 74, 2001, 200-206 [0005]
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- - J. S. Wilkes: A short history of ionic liquids – from molten salts to neoteric solvents, Green Chemistry, 4, 2002, 73–80 [0006] - JS Wilkes: A short history of ionic liquids - from molten salts to neoteric solvents, Green Chemistry, 4, 2002, 73-80 [0006]
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- - Kristin A. Fletcher et al.: Solvatochromic probe behavior within ternary room-temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate plus ethanol plus water solutions, Journal of Physical Chemistry B, 107, 2003, 13532–13539 [0008] Kristin A. Fletcher et al .: Solvatochromic Probe Behavior Within Ternary Room-Temperature Ionic Liquid 1-Butyl-3-Methylimidazolium Hexafluorophosphate Plus Ethanol Plus Water Solutions, Journal of Physical Chemistry B, 107, 2003, 13532-13539 [0008]
- - Abhra Sarkar et al.: Solvatochromic absorbance probe behavior and preferential solvation in aqueous 1-butyl-3-methylimidazolium tetrafluoroborate, Journal of Chemical and Engineering Data 51, 2006, 2051–2055 [0008] - Abraham Sarkar et al .: Solvatochromic absorbance sample behavior and preferential solvation in aqueous 1-butyl-3-methylimidazolium tetrafluoroborate, Journal of Chemical and Engineering Data 51, 2006, 2051-2055 [0008]
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- - Emission-based optical carbon dioxide sensing with HPTS in green chemistry reagents: room-temperature ionic liquids, Analytical and Bioanalytical Chemistry, 386, 2006, 1225–1234 [0011] - Emission-based optical carbon dioxide sensing with HPTS in green chemistry reagents: room-temperature ionic liquids, Analytical and Bioanalytical Chemistry, 386, 2006, 1225-1234 [0011]
- - Modification of chemical performance of dopants in xerogel films with entrapped ionic liquid, Journal of Materials Chemistry 17, 2007, 1674–1681 [0012] Journal of Materials Chemistry 17, 2007, 1674-1681 [0012]
- - Ozlem Oter at al.: Emission-based optical carbon dioxide sensing with HPTS in green chemistry reagents: room-temperature ionic liquids, Analytical and Bioanalytical Chemistry, 386, 2006, 1225–1234 oder Afsaneh Safavi et al.: Modification of chemical performance of dopants in xerogel films with entrapped ionic liquid, Journal of Materials Chemistry 17, 2007, 1674–1681 [0016] - Ozlem Oter at al .: Emission-based optical carbon dioxide sensing with HPTS in green chemistry reagents: room-temperature ionic liquids, Analytical and Bioanalytical Chemistry, 386, 2006, 1225-1234 or Afsaneh Safavi et al .: Modification of chemical performance of dopants in xerogel films with entrapped ionic liquid, Journal of Materials Chemistry 17, 2007, 1674-1681 [0016]
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| DE102007053664A DE102007053664A1 (en) | 2007-11-08 | 2007-11-08 | Optical sensor for the detection of ions, gases and biomolecules, comprises a matrix with indicator dyes consisting of thin layer of ionic fluids, which is absorbed with the indicator dyes in inert or reactive thin carrier material |
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| DE102009048915A1 (en) * | 2009-10-10 | 2011-04-14 | Testo Ag | Potable measuring device for measuring concentration of e.g. formaldehyde component, in gaseous test sample, has carrier material provided with substrate and arranged in light paths of light between illuminating unit and detecting unit |
| US20110247234A1 (en) * | 2008-12-29 | 2011-10-13 | Wolfgang Friess | Dryer with monitoring device |
| WO2012069859A1 (en) * | 2010-11-23 | 2012-05-31 | Luminochem Kutató-Fejlesztö Kft | Fluorescent dyes sensitive to sodium ions and optionally to potassium ions, process for their preparation and their use |
| DE102011082716A1 (en) * | 2011-09-14 | 2013-03-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Indicators element used in cell culture vessel for determining pH value of substance comprises polymeric material and indicator dye |
| WO2015013731A1 (en) | 2013-07-31 | 2015-02-05 | Joanneum Research Forschungsgesellschaft Mbh | Sensor membrane for the reversible detection of analytes |
| CN107219287A (en) * | 2017-06-28 | 2017-09-29 | 汉威科技集团股份有限公司 | Ionic liquid electrochemical gas sensor |
| KR20210094893A (en) * | 2020-01-22 | 2021-07-30 | 주식회사 엘지화학 | A novel organic fluorescence compound and a device comprising the same |
| DE102020109901A1 (en) | 2020-04-08 | 2021-10-14 | Endress+Hauser Conducta Gmbh+Co. Kg | Optochemical sensor and method for measured value correction |
| DE102020129522A1 (en) | 2020-11-10 | 2022-05-12 | Endress+Hauser Conducta Gmbh+Co. Kg | Indicator for determining a pH value of a solution |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110247234A1 (en) * | 2008-12-29 | 2011-10-13 | Wolfgang Friess | Dryer with monitoring device |
| US8919007B2 (en) * | 2008-12-29 | 2014-12-30 | Wolfgang Friess | Dryer with monitoring device |
| US9500406B2 (en) | 2008-12-29 | 2016-11-22 | Wolfgang Friess | Dryer with monitoring device |
| DE102009048915A1 (en) * | 2009-10-10 | 2011-04-14 | Testo Ag | Potable measuring device for measuring concentration of e.g. formaldehyde component, in gaseous test sample, has carrier material provided with substrate and arranged in light paths of light between illuminating unit and detecting unit |
| WO2012069859A1 (en) * | 2010-11-23 | 2012-05-31 | Luminochem Kutató-Fejlesztö Kft | Fluorescent dyes sensitive to sodium ions and optionally to potassium ions, process for their preparation and their use |
| DE102011082716A1 (en) * | 2011-09-14 | 2013-03-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Indicators element used in cell culture vessel for determining pH value of substance comprises polymeric material and indicator dye |
| AT514611A1 (en) * | 2013-07-31 | 2015-02-15 | Joanneum Res Forschungsgmbh | Sensor membrane for reversible detection of analytes |
| AT514611B1 (en) * | 2013-07-31 | 2016-08-15 | Joanneum Res Forschungsgmbh | Sensor membrane for reversible detection of analytes |
| WO2015013731A1 (en) | 2013-07-31 | 2015-02-05 | Joanneum Research Forschungsgesellschaft Mbh | Sensor membrane for the reversible detection of analytes |
| CN107219287A (en) * | 2017-06-28 | 2017-09-29 | 汉威科技集团股份有限公司 | Ionic liquid electrochemical gas sensor |
| CN107219287B (en) * | 2017-06-28 | 2023-11-17 | 汉威科技集团股份有限公司 | Ionic liquid electrochemical gas sensor |
| KR20210094893A (en) * | 2020-01-22 | 2021-07-30 | 주식회사 엘지화학 | A novel organic fluorescence compound and a device comprising the same |
| KR102848368B1 (en) | 2020-01-22 | 2025-08-19 | 주식회사 엘지화학 | A novel organic fluorescence compound and a device comprising the same |
| DE102020109901A1 (en) | 2020-04-08 | 2021-10-14 | Endress+Hauser Conducta Gmbh+Co. Kg | Optochemical sensor and method for measured value correction |
| DE102020129522A1 (en) | 2020-11-10 | 2022-05-12 | Endress+Hauser Conducta Gmbh+Co. Kg | Indicator for determining a pH value of a solution |
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