PMID- 30903388 OWN - NLM STAT- MEDLINE DCOM- 20191223 LR - 20200309 IS - 1436-5073 (Electronic) IS - 0026-3672 (Linking) VI - 186 IP - 4 DP - 2019 Mar 22 TI - An integrated magnetic microfluidic chip for rapid immunodetection of the prostate specific antigen using immunomagnetic beads. PG - 252 LID - 10.1007/s00604-019-3349-1 [doi] AB - The authors describe an integrated microfluidic chip for immunodetection of the prostate specific antigen (PSA) by using giant magnetoimpedance (GMI) sensor. This chip contains an immunoreaction platform and a biomarker detection system. The immunoreaction platform contains an incubation chamber and a reactive chamber to implement immunological reaction in microfluidics. The system can detect PSA rapidly with ultra-high sensitivity. Both are fabricated by MEMS technology. Immunomagnetic beads (If PSA binds to its antibody (that is labeled with immunomagnetic beads; IMBs) it will be trapped on the surface of self-assembled film. Trapped IMBs generate a stray magnetic field under the magnetization of the external applied magnetic field and can be detected by the GMI sensor. The chip can detect PSA with a detection limit as low as 0.1 ng ∙ mL(-1) and works in the 0.1 ng ∙ mL(-1) to 20 ng ∙ mL(-1 )concentration range. Compared to established GMI biosensors, the magnetic microfluidic chip reduces assay time, and lends itself to fast detection. It also avoids complex handling steps, enhances reaction efficiency and decreases experimental errors. Graphical abstract An integrated magnetic microfluidic chip which contains immunoreaction platform and biomarker detection system was designed and microfabricated by micro-electromechanical systems (MEMS) technology to detect prostate specific antigen (PSA) rapidly, and has promise in Point-of-care (PoC) diagnostic applications. FAU - Feng, Zhu AU - Feng Z AUID- ORCID: 0000-0002-4305-1700 AD - Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro-Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China. feng.z@sjtu.edu.cn. FAU - Zhi, Shaotao AU - Zhi S AD - Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro-Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China. FAU - Guo, Lei AU - Guo L AD - Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro-Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China. FAU - Zhou, Yong AU - Zhou Y AD - Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro-Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China. FAU - Lei, Chong AU - Lei C AD - Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro-Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China. leiqhd@sjtu.edu.cn. LA - eng GR - 61273065/National Natural Science Foundation of China/International GR - 2012BAK08B05/National Science and Technology Support Program/International GR - AgriX2015005/Support fund of Shanghai Jiao Tong University/International GR - USCAST2015-2/Support fund of Joint research center for advanced aerospace technology of Shanghai Academy of Spaceflight Technology-Shanghai Jiao Tong University/International GR - 15GFZ-JJ02-05/Support fund of aerospace technology/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190322 PL - Austria TA - Mikrochim Acta JT - Mikrochimica acta JID - 7808782 RN - 0 (Antibodies) RN - 0 (Biomarkers) RN - EC 3.4.21.77 (Prostate-Specific Antigen) SB - IM MH - Animals MH - Antibodies/immunology MH - Biomarkers/analysis MH - Equipment Design MH - Humans MH - Immunoassay/*instrumentation/methods MH - Immunomagnetic Separation/*instrumentation/methods MH - *Lab-On-A-Chip Devices MH - Limit of Detection MH - Mice MH - Microfluidic Analytical Techniques/*instrumentation/methods MH - Prostate-Specific Antigen/*analysis/immunology OTO - NOTNLM OT - Biomarker detection OT - Biosensor OT - Giant magnetoimpedance OT - Immunomagnetic beads OT - Immunoreaction platform OT - Magnetic sensor OT - Micro-electromechanical systems OT - Microfluidic chip OT - Point-of-care diagnostics OT - Prostate specific antigen EDAT- 2019/03/25 06:00 MHDA- 2019/12/24 06:00 CRDT- 2019/03/24 06:00 PHST- 2019/01/23 00:00 [received] PHST- 2019/02/27 00:00 [accepted] PHST- 2019/03/24 06:00 [entrez] PHST- 2019/03/25 06:00 [pubmed] PHST- 2019/12/24 06:00 [medline] AID - 10.1007/s00604-019-3349-1 [pii] AID - 10.1007/s00604-019-3349-1 [doi] PST - epublish SO - Mikrochim Acta. 2019 Mar 22;186(4):252. doi: 10.1007/s00604-019-3349-1.