PMID- 28942210 OWN - NLM STAT- MEDLINE DCOM- 20180619 LR - 20191210 IS - 1873-4235 (Electronic) IS - 0956-5663 (Linking) VI - 100 DP - 2018 Feb 15 TI - High sensitivity cardiac troponin I detection in physiological environment using AlGaN/GaN High Electron Mobility Transistor (HEMT) Biosensors. PG - 282-289 LID - S0956-5663(17)30624-3 [pii] LID - 10.1016/j.bios.2017.09.018 [doi] AB - In this study, we report the development of a high sensitivity assay for the detection of cardiac troponin I using electrical double layer gated high field AlGaN/GaN HEMT biosensor. The unique gating mechanism overcomes the drawback of charge screening seen in traditional FET based biosensors, allowing detection of target proteins in physiological solutions without sample processing steps. Troponin I specific antibody and aptamer are used as receptors. The tests carried out using purified protein solution and clinical serum samples depict high sensitivity, specificity and wide dynamic range (0.006-148ng/mL). No additional wash or sample pre-treatment steps are required, which greatly simplifies the biosensor system. The miniaturized HEMT chip is packaged in a polymer substrate and easily integrated with a portable measurement unit, to carry out quantitative troponin I detection in serum samples with < 2microl sample volume in 5min. The integrated prototype biosensor unit demonstrates the potential of the method as a rapid, inexpensive, high sensitivity CVD biomarker assay. The highly simplified protocols and enhanced sensor performance make our biosensor an ideal choice for point of care diagnostics and personal healthcare systems. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Sarangadharan, Indu AU - Sarangadharan I AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Regmi, Abiral AU - Regmi A AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Chen, Yen-Wen AU - Chen YW AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Hsu, Chen-Pin AU - Hsu CP AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Chen, Pei-Chi AU - Chen PC AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Chang, Wen-Hsin AU - Chang WH AD - Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Lee, Geng-Yen AU - Lee GY AD - Department of Electrical Engineering, National Central University, Jhongli City, Taoyuan County 320, Taiwan R.O.C. FAU - Chyi, Jen-Inn AU - Chyi JI AD - Department of Electrical Engineering, National Central University, Jhongli City, Taoyuan County 320, Taiwan R.O.C. FAU - Shiesh, Shu-Chu AU - Shiesh SC AD - Department of Medical Laboratory Science and Biotechnology, National Cheng-Kung University, Tainan City 701, Taiwan R.O.C. FAU - Lee, Gwo-Bin AU - Lee GB AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C; Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C; Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. FAU - Wang, Yu-Lin AU - Wang YL AD - Institute of NanoEngineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C; Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C. Electronic address: ylwang@mx.nthu.edu.tw. LA - eng PT - Evaluation Study PT - Journal Article DEP - 20170914 PL - England TA - Biosens Bioelectron JT - Biosensors & bioelectronics JID - 9001289 RN - 0 (Aluminum Compounds) RN - 0 (Antibodies, Immobilized) RN - 0 (Biomarkers) RN - 0 (Troponin I) RN - 0 (aluminum gallium nitride) RN - 1R9CC3P9VL (gallium nitride) RN - CH46OC8YV4 (Gallium) SB - IM MH - Aluminum Compounds/*chemistry MH - Antibodies, Immobilized/chemistry MH - Biomarkers/analysis/blood MH - Biosensing Techniques/*instrumentation/methods MH - Electrons MH - Equipment Design MH - Gallium/*chemistry MH - Humans MH - Point-of-Care Systems MH - Troponin I/analysis/*blood OTO - NOTNLM OT - Electrical double layer gated AlGaN/GaN HEMT biosensor OT - High sensitivity cardiac Troponin I detection OT - Personal healthcare OT - Point of care diagnostics EDAT- 2017/09/25 06:00 MHDA- 2018/06/21 06:00 CRDT- 2017/09/25 06:00 PHST- 2017/07/02 00:00 [received] PHST- 2017/09/07 00:00 [revised] PHST- 2017/09/12 00:00 [accepted] PHST- 2017/09/25 06:00 [pubmed] PHST- 2018/06/21 06:00 [medline] PHST- 2017/09/25 06:00 [entrez] AID - S0956-5663(17)30624-3 [pii] AID - 10.1016/j.bios.2017.09.018 [doi] PST - ppublish SO - Biosens Bioelectron. 2018 Feb 15;100:282-289. doi: 10.1016/j.bios.2017.09.018. Epub 2017 Sep 14.