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Sensors 2014, 14(8), 15458-15479; doi:10.3390/s140815458

Recent Developments in Optical Detection Technologies in Lab-on-a-Chip Devices for Biosensing Applications

IMST-Department of Micro- and Nanosystems Technology, Faculty of Technology and Maritime Sciences, Buskerud and Vestfold University College, Postboks 235, 3603 Kongsberg, Norway
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Received: 15 July 2014 / Revised: 14 August 2014 / Accepted: 15 August 2014 / Published: 21 August 2014
(This article belongs to the Special Issue Opto-Microfluidics for Bio Applications)
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Abstract

The field of microfluidics has yet to develop practical devices that provide real clinical value. One of the main reasons for this is the difficulty in realizing low-cost, sensitive, reproducible, and portable analyte detection microfluidic systems. Previous research has addressed two main approaches for the detection technologies in lab-on-a-chip devices: (a) study of the compatibility of conventional instrumentation with microfluidic structures, and (b) integration of innovative sensors contained within the microfluidic system. Despite the recent advances in electrochemical and mechanical based sensors, their drawbacks pose important challenges to their application in disposable microfluidic devices. Instead, optical detection remains an attractive solution for lab-on-a-chip devices, because of the ubiquity of the optical methods in the laboratory. Besides, robust and cost-effective devices for use in the field can be realized by integrating proper optical detection technologies on chips. This review examines the recent developments in detection technologies applied to microfluidic biosensors, especially addressing several optical methods, including fluorescence, chemiluminescence, absorbance and surface plasmon resonance. View Full-Text
Keywords: microfluidics; optical detection; electrochemistry; sensor integration; fluorescence; chemiluminescence; analyte detection; point of care microfluidics; optical detection; electrochemistry; sensor integration; fluorescence; chemiluminescence; analyte detection; point of care
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Pires, N.M.M.; Dong, T.; Hanke, U.; Hoivik, N. Recent Developments in Optical Detection Technologies in Lab-on-a-Chip Devices for Biosensing Applications. Sensors 2014, 14, 15458-15479.

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