A Rapid and Low-Cost Nonlithographic Method to Fabricate Biomedical Microdevices for Blood Flow Analysis

Micromachines

Elmano Pinto²  Vera Faustino²  Raquel O. Rodrigues²  Diana Pinho²  Valdemar Garcia²  João M. Miranda¹  Rui Lima² 

[1] Transport Phenomena Research Center, Department of Chemical Engineering, Engineering Faculty, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; E-Mail:;School of Technology and Management (ESTiG), Polytechnic Institute of Bragança (IPB), Campus de Santa Apolónia, 5300-253 Bragança, Portugal; E-Mails:

关键词: low cost biochips;    nonlithographic technique;    xurography;    blood flow;    bifurcations;    microbubbles;    biomicrofluidics;   

DOI  :  10.3390/mi6010121

来源: mdpi

【 摘 要 】

Microfluidic devices are electrical/mechanical systems that offer the ability to work with minimal sample volumes, short reactions times, and have the possibility to perform massive parallel operations. An important application of microfluidics is blood rheology in microdevices, which has played a key role in recent developments of lab-on-chip devices for blood sampling and analysis. The most popular and traditional method to fabricate these types of devices is the polydimethylsiloxane (PDMS) soft lithography technique, which requires molds, usually produced by photolithography. Although the research results are extremely encouraging, the high costs and time involved in the production of molds by photolithography is currently slowing down the development cycle of these types of devices. Here we present a simple, rapid, and low-cost nonlithographic technique to create microfluidic systems for biomedical applications. The results demonstrate the ability of the proposed method to perform cell free layer (CFL) measurements and the formation of microbubbles in continuous blood flow.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.