中南民族大学学报:自然科学版
中南民族大學學報:自然科學版
중남민족대학학보:자연과학판
Journal of South-Central University for Nationalities
2012年
1期
25-29
,共5页
程寒%袁琳%明月%杨天鸣%程介克
程寒%袁琳%明月%楊天鳴%程介剋
정한%원림%명월%양천명%정개극
芯片毛细管电泳%电化学检测%碳纤维纳米电极%PC12细胞%多巴胺
芯片毛細管電泳%電化學檢測%碳纖維納米電極%PC12細胞%多巴胺
심편모세관전영%전화학검측%탄섬유납미전겁%PC12세포%다파알
microchip electrophoresis%electrochemical detection%carbon fiber nanoelectrodes%PC12 cells%dopamine
为研究单个PC12细胞中多巴胺的含量,以碳纤维纳米电极为工作电极,自行组装了微流控芯片安培柱末检测系统,设计了一种微流控芯片电泳单细胞进样和溶膜的控制方式,仅需一路高压控制即可实现单细胞进样和溶膜操作.结果表明:采用该系统实现了4种儿茶酚胺类物质的基线分离,通过控制适当的细胞密度及液池的液面高度差,实现了单个细胞连续快速进样、溶膜和分析,得出单个PC12细胞中多巴胺含量为0.80±0.33 fmol(n=5).
為研究單箇PC12細胞中多巴胺的含量,以碳纖維納米電極為工作電極,自行組裝瞭微流控芯片安培柱末檢測繫統,設計瞭一種微流控芯片電泳單細胞進樣和溶膜的控製方式,僅需一路高壓控製即可實現單細胞進樣和溶膜操作.結果錶明:採用該繫統實現瞭4種兒茶酚胺類物質的基線分離,通過控製適噹的細胞密度及液池的液麵高度差,實現瞭單箇細胞連續快速進樣、溶膜和分析,得齣單箇PC12細胞中多巴胺含量為0.80±0.33 fmol(n=5).
위연구단개PC12세포중다파알적함량,이탄섬유납미전겁위공작전겁,자행조장료미류공심편안배주말검측계통,설계료일충미류공심편전영단세포진양화용막적공제방식,부수일로고압공제즉가실현단세포진양화용막조작.결과표명:채용해계통실현료4충인다분알류물질적기선분리,통과공제괄당적세포밀도급액지적액면고도차,실현료단개세포련속쾌속진양、용막화분석,득출단개PC12세포중다파알함량위0.80±0.33 fmol(n=5).
A microchip electrophoresis system with end-channel carbon fiber nanoelectrode amperometric detector was developed to study on the content of DA in single phochromocytoma(PC12) cell.An operation mode was designed to achieve single cell injection and lysis in chip-CE with only one high-voltage power supply.The experimental results indicate that four catecholamines were baseline-separated and determined with this system.The cell density and liquid height of the reservoirs were accommodated for single cell loading,docking and analysis.The microchip CE system has been successfully applied to the determination of dopamine(DA) in single cultured rat PC12 cell and the average content of DA in single PC12 cell is 0.80±0.33(n=5) fmol.