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Titolo:
Powder-blasting technology as an alternative tool for microfabrication of capillary electrophoresis chips with integrated conductivity sensors
Autore:
Schlautmann, S; Wensink, H; Schasfoort, R; Elwenspoek, M; van den Berg, A;
Indirizzi:
Univ Twente, MESA Res Inst, NL-7500 AE Enschede, Netherlands Univ Twente Enschede Netherlands NL-7500 AE 500 AE Enschede, Netherlands
Titolo Testata:
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
fascicolo: 4, volume: 11, anno: 2001,
pagine: 386 - 389
SICI:
0960-1317(200107)11:4<386:PTAAAT>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Schlautmann, S Univ Twente, MESA Res Inst, POB 217, NL-7500 AE Enschede, Netherlands Univ Twente POB 217 Enschede Netherlands NL-7500 AE rlands
Citazione:
S. Schlautmann et al., "Powder-blasting technology as an alternative tool for microfabrication of capillary electrophoresis chips with integrated conductivity sensors", J MICROM M, 11(4), 2001, pp. 386-389

Abstract

The fabrication and characterization of a microfluidic device for capillary electrophoresis applications is presented. The device consists of a glasschip which contains a single separation channel as well as an integrated conductivity detection cell. In contrast to most microfluidic glass devices the channels are not wet etched in HF but machined by the newly developed micro powder-blasting technique which allows the creation of microstructuresbelow 100 mum, and additionally makes parallel hole machining at very low costs outside the cleanroom environment possible [1, 2]. The integration ofthe conductivity detector was achieved by leading two thin-film metal electrodes inside the separation channel. For rapid sample injection the chip is mounted inside an autosampler-based capillary electrophoresis platform. The detection electrodes for conductivity detection are read out by lock-in amplifier electronics. First measurements show the successful separation ofvarious ions in the sub-millimeter range.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 09:43:36