PMID- 35495354 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220503 IS - 2046-2069 (Electronic) IS - 2046-2069 (Linking) VI - 10 IP - 19 DP - 2020 Mar 16 TI - An effective hydroxylation route for a highly sensitive glucose sensor using APTES/GOx functionalized AlGaN/GaN high electron mobility transistor. PG - 11393-11399 LID - 10.1039/c9ra09446f [doi] AB - A highly sensitive glucose sensor based on AlGaN/GaN high electron mobility transistor (HEMT) has been fabricated. The hydroxyl groups on the GaN surface were achieved by the decomposition of hydrogen peroxide solution (H(2)O(2)) under UV irradiation for the production of hydroxyl radicals. The self-assembled monolayers (SAMs) of 3-aminopropyltriethoxysilane (APTES) with terminal amino groups formed on the hydroxylation surface were used as substrates for glucose oxidase (GOx) immobilization. The chemical groups on the GaN surface after hydroxylation were confirmed by X-ray photoelectron spectroscopy. From the analysis of current signals, the biosensor constructed with APTES/GOx exhibited good current response to glucose over a linear range from 10 to 100 microM with a sensitivity of 3.15 x 10(4) microA mM(-1) cm(-2) and a detection limit of 10 nM. Meanwhile, the anticipated idea about the hydroxylation of GaN surface, can be an efficient approach for the design of AlGaN/GaN HEMT based biosensors in the future. CI - This journal is (c) The Royal Society of Chemistry. FAU - Liu, Jun AU - Liu J AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Zhang, Heqiu AU - Zhang H AUID- ORCID: 0000-0002-5155-6215 AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Xue, Dongyang AU - Xue D AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Ahmad, Aqrab Ul AU - Ahmad AU AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Xia, Xiaochuan AU - Xia X AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Liu, Yang AU - Liu Y AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. FAU - Huang, Huishi AU - Huang H AD - Jiangsu Xinguanglian Technology Co., Ltd Wuxi Jiangsu P. R. China 214192. FAU - Guo, Wenping AU - Guo W AD - Shandong Novoshine Co., Ltd Weifang Shandong P. R. China 261000. FAU - Liang, Hongwei AU - Liang H AUID- ORCID: 0000-0002-8231-2790 AD - School of Microelectronics, Dalian University of Technology Dalian P. R. China 116024 hqzhang@dlut.edu.cn hwliang@dlut.edu.cn. LA - eng PT - Journal Article DEP - 20200318 PL - England TA - RSC Adv JT - RSC advances JID - 101581657 PMC - PMC9050454 COIS- There are no conflicts to declare. EDAT- 2020/03/18 00:00 MHDA- 2020/03/18 00:01 PMCR- 2020/03/18 CRDT- 2022/05/02 06:39 PHST- 2019/11/13 00:00 [received] PHST- 2020/03/05 00:00 [accepted] PHST- 2022/05/02 06:39 [entrez] PHST- 2020/03/18 00:00 [pubmed] PHST- 2020/03/18 00:01 [medline] PHST- 2020/03/18 00:00 [pmc-release] AID - c9ra09446f [pii] AID - 10.1039/c9ra09446f [doi] PST - epublish SO - RSC Adv. 2020 Mar 18;10(19):11393-11399. doi: 10.1039/c9ra09446f. eCollection 2020 Mar 16.