TWI297391B - - Google Patents
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- TWI297391B TWI297391B TW94103495A TW94103495A TWI297391B TW I297391 B TWI297391 B TW I297391B TW 94103495 A TW94103495 A TW 94103495A TW 94103495 A TW94103495 A TW 94103495A TW I297391 B TWI297391 B TW I297391B
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Description
1297391 九、發明說明: 【發明所屬之技術領域】 本發明有關於一種光驅動式之液珠操控方法,其主要 在於利用光線照射液珠旁之光感應材料,使該處光感應材 料由疏水性變成親水性,而驅動液珠向親水性較佳處移動 【先前技術】 目前在醫療臨床檢驗方面,檢測疾病往往需要大量白勺 * 檢體以及較長檢測時間,例如對台灣造成極大威脅的SARS 病毒檢驗,如使用傳統檢測技術,往往需要四至七天以上 才可以判定確認,由於傳統方法無法在第一時間内有效地 偵測並診斷病情,病人可能因冗長的檢驗時間而死亡,因 此必須快速檢驗出致病的細菌或細胞分子種類,以給予適 當的藥物進行冶療,然而在檢測的過程當中,由於在含有 多種生物樣本的混合溶液中進行純化分離,如何能快速準 φ 確的分離出細胞分子,係已成為臨床檢驗研究急待克服之 問題。 在傳統的細胞分離技術中,是利用細胞或生物分子本 身之物理或化學特性,而作為檢測方向,如細胞之大小、 帶電荷、標定物等,以純化分離的技術,而在不破壞細胞 的狀況下,以取得相關之生物訊息,並將分離出的單一細 胞群,經由培養而獲得大量同種細胞進行分析。 因此生醫晶片技術即是因應快速檢驗需要所發展之技 1297391 術,並朝向少量檢體及迅速診斷之目標發展,其係藉由聚 合酶連鎖反應(Polymerase Chain Reaction,pcr)具有將 特定DNA或是RNA序列複製放大之功能,又DMA與RNA之序列 決定大部分疾病檢測判斷結果,因此PCR便成為生醫晶片檢 測之關鍵技術。目前生醫晶片採用PCR檢測,多使用微流道 配合幫浦與閥門元件之設計和利用虹吸等原理,藉著外力 或微流體系統的幫助,使檢體在晶片上之微流道内流動, 生醫反應的速率可增加數倍至數百倍以上,因此使得傳統 I 過程複雜費時的生醫檢體處理與反應時程得以大幅縮短。 當檢體體積減少,反應面積與檢體體積的比率相對增加, 檢體的反應速率可以加快。 然而’上述傳統的生醫晶片檢測方法,仍需事先刻晝 微流道,且由於微流道之路徑於製作完成後即無法再作變 更,使得檢測項目固定,無法彈性地運用在不同種類之生 醫檢驗。而且設計包含了複雜之微流道設計,且必須加裝 • 幫浦及閥門元件,則花費甚鉅,其以幫浦來驅動液珠移動, 並利用閥門與流道的走向控制液珠的流動方向,同時微流 道上幫浦與閥門之製作相當不易。尤其在檢驗的過程中, 檢體在微流道裡流動時會因為表面張力及檢體本身黏滯性 之問題而殘留在微流道上,導致檢體損耗過多而直接影響 檢驗結果,所以在檢測使用上並不盡理想。 【發明内容】 麦此為克服上述習知液珠驅動方法之種種問題點, 1297391 本發明則提供一種& 上塗佈光感應材料=式之液珠操控方法,其在於基材 材料之疏水性而凝L光感應材料上之液珠因該光感應 料’使該處光感應材错由光線照射液珠旁之光感應材 向親水性較佳處移動者由疏水性變成親水性,以驅動液珠 广:::施例確實具有下列之優點: 親、疏水=動光^射’而改變光感應材料表面之 光線之移動照射3液故可以視需要而任意改變 有操控方便、簡單:作用使液珠隨—^ 改變,故具 2·本發明無需事先玄,丨蚩 ώ 元件,故花_丨 n以及加料浦及閥門 仟故化費李乂小,而具有節省成本之 【實施方法】 -其之触方法,請㈣第1所示,其於 、二才 I佈有光感應材料⑵,該光感應材料⑵係可 為一乳化鈦〔Ti〇2〕’可經由光線照射後,而改變基材⑴ 表面之親、疏水性,該光線⑷可為紫外光〔叫,土 忒基材(1)上放置有檢體之液珠(3),該液珠(3)可因該咸 應材料(2)之疏水性而凝聚,並根據液珠所欲移動之 徑(31)將其數位化,而控制光線(4)依照該移動路徑(3^路 行移動照射,如第二、三圖所示,藉由光線(4)照射= 夜珠進 旁之光感應材料(2),使該處光感應材料(2)由疏水性織3) 親水性,則液珠(3)因而向親水性較佳處移動者, ,成 1籍由 1297391 (0 ) 夾角度
Claims (1)
1297391 十、申請專利範圍: 1. 一種光驅動式之液珠操控方法,主要於一基材上塗 佈光感應材料,置於光感應材料上之液珠,因該光感應材 料之疏水性而凝聚,藉由光線照射液珠旁之光感應材料, 使該處光感應材料由疏水性變成親水性,以驅動液珠向親 水性較佳處移動者。 2. 如申請專利範圍第1項所述光驅動式之液珠操控方 法’其中該光感應材料為二氧化欽。 > 3.如申請專利範圍第1項所述光驅動式之液珠操控方 法,其中該光線為紫外光。 ;4.如申請專利範圍第3項所述光驅動式之液珠操控方 法,其利用紫外光之光源功率改變,以控制液珠之行進速
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW094103495A TW200628790A (en) | 2005-02-04 | 2005-02-04 | Optically driven control method for liquid droplet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW094103495A TW200628790A (en) | 2005-02-04 | 2005-02-04 | Optically driven control method for liquid droplet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200628790A TW200628790A (en) | 2006-08-16 |
| TWI297391B true TWI297391B (zh) | 2008-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW094103495A TW200628790A (en) | 2005-02-04 | 2005-02-04 | Optically driven control method for liquid droplet |
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| TW (1) | TW200628790A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075772A (zh) * | 2019-02-21 | 2019-08-02 | 中国科学院化学研究所 | 一种新型驱动漂浮物定向运动的方法 |
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| Publication number | Publication date |
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| TW200628790A (en) | 2006-08-16 |
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