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Parallel detection and quantification using nine immunoassays in a protein microarray for drug from serum samples.

Du H, Yang W, Xing W, Su Y, Cheng J

Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, People's Republic of China.

A protein microarray system for detection and quantification of nine prohibited drugs in serum is described. Chemically modified slides were chosen as the microarray substrates because of their suitable for drug-BSA printing. The developed protein microarray was able to preserve the biological function of the haptens, when immobilized on the microarray surface and demonstrated binding with their corresponding antibodies. The microarray could also be used for quantitative analysis when mouse IgG was chosen as an internal control for data processing. There was no qualitative difference between the results obtained using the protein microarray and ELISA. The protein microarray technology should be applicable to performing, simultaneously, large scale screening tests for many different analytes in serum.

Published 7 June 2005 in Biomed Microdevices, 7(2): 143-6.
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