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Gu Z, Wang J, Miao B, Zhao L, Liu X, Wu D, Li J. Highly sensitive AlGaN/GaN HEMT biosensors using an ethanolamine modification strategy for bioassay applications. RSC Adv 2019; 9:15341-15349. [PMID: 35514822 PMCID: PMC9064203 DOI: 10.1039/c9ra02055a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 05/09/2019] [Indexed: 12/21/2022] Open
Abstract
In this paper, we propose a highly efficient surface modification strategy on an AlGaN/GaN high electron mobility transistor (HEMT), where ethanolamine (EA) was utilized to functionalize the surface of GaN and provided amphoteric amine groups for probe molecular immobilization for bioassay application. The molecular gated-AlGaN/GaN HEMT was utilized for pH and prostate-specific antigen (PSA) detection to verify its performance as a biosensor. Benefitting from the high coating quality on the GaN surface, the performance of our biosensor is drastically improved compared to other AlGaN/GaN HEMT based pH and PSA biosensors reported before. Our molecular gated-AlGaN/GaN HEMT biosensor has achieved good static electrical performance for pH sensing, such as high sensitivity, good linearity and chemical stability. Moreover, after further immobilization of PSA antibody onto the EA aminated GaN surface, the limit of detection (LOD) for PSA detection is as low as 1 fg mL-1 in PBS buffer, which has reached an at least two orders of magnitude decrease compared to any other AlGaN/GaN HEMT based PSA biosensor reported before. And the sensitivity of our PSA biosensor has achieved a substantial increase, reaching up to 2.04% for 100 ng mL-1. The measurements of pH and PSA utilizing the EA modified AlGaN/GaN HEMT biosensor indicate that the surface modification strategy on the GaN proposed in this paper can effectively improve the performance of the AlGaN/GaN HEMT based biosensor, which demonstrates a promising application prospect in the AlGaN/GaN HEMT based biological detection field.
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Affiliation(s)
- Zhiqi Gu
- School of Nano Technology and Nano Bionics, University of Science and Technology of China Hefei 230026 China
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
| | - Jin Wang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- The College of Materials Sciences and Engineering, Shanghai University Shanghai 200444 China
| | - Bin Miao
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
| | - Lei Zhao
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology Chengdu 610059 China
| | - Xinsheng Liu
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology Chengdu 610059 China
| | - Dongmin Wu
- School of Nano Technology and Nano Bionics, University of Science and Technology of China Hefei 230026 China
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
| | - Jiadong Li
- School of Nano Technology and Nano Bionics, University of Science and Technology of China Hefei 230026 China
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences Suzhou 215125 People's Republic of China
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Cheng Y, Zhang Y, Pei R, Xie Y, Yao W, Guo Y, Qian H. Fast Detection of Bismerthiazol in Cabbage Based on Fluorescence Quenching of Protein-Capping Gold Nanoclusters. ANAL SCI 2018; 34:415-419. [PMID: 29643303 DOI: 10.2116/analsci.17p347] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this work, bismerthiazol was firstly assayed by a fast and portable method employing protein-capping gold nanoculsters as probes. The luminescent intensity of the nanoclusters showed a correlative response towards bismerthiazol from 5 to 4000 μg/mL with a linear relation in the range of 5 - 100 μg/mL. As little as 5 μg/mL of bismerthiazol could be quantified. The high affinity of bismerthiazol to interact with the soybean protein-capped gold nanoclusters contributed to the excellent selectivity of this method over other common pesticides. The recoveries in several cabbage samples were 101 - 135%, indicating good performance in practical applications. By comparison to previous reported approaches, this method bears advantages including simple operation, fast response, visual readout and good selectivity.
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Affiliation(s)
- Yuliang Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University
| | - Yao Zhang
- School of Food Science and Technology, Jiangnan University
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University
| | - Yahui Guo
- School of Food Science and Technology, Jiangnan University
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University
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Shriver-Lake LC, Zabetakis D, Dressick WJ, Stenger DA, Trammell SA. Paper-Based Electrochemical Detection of Chlorate. SENSORS 2018; 18:s18020328. [PMID: 29364153 PMCID: PMC5855869 DOI: 10.3390/s18020328] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/12/2018] [Accepted: 01/19/2018] [Indexed: 11/16/2022]
Abstract
We describe the use of a paper-based probe impregnated with a vanadium-containing polyoxometalate anion, [PMo11VO40]5−, on screen-printed carbon electrodes for the electrochemical determination of chlorate. Cyclic voltammetry (CV) and chronocoulometry were used to characterize the ClO3− response in a pH = 2.5 solution of 100 mM sodium acetate. A linear CV current response was observed between 0.156 and 1.25 mg/mL with a detection limit of 0.083 mg/mL (S/N > 3). This performance was reproducible using [PMo11VO40]5−-impregnated filter paper stored under ambient conditions for as long as 8 months prior to use. At high concentration of chlorate, an additional catalytic cathodic peak was seen in the reverse scan of the CVs, which was digitally simulated using a simple model. For chronocoulometry, the charge measured after 5 min gave a linear response from 0.625 to 2.5 mg/mL with a detection limit of 0.31 mg/mL (S/N > 3). In addition, the slope of charge vs. time also gave a linear response. In this case the linear range was from 0.312 to 2.5 mg/mL with a detection limit of 0.15 mg/mL (S/N > 3). Simple assays were conducted using three types of soil, and recovery measurements reported.
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Affiliation(s)
- Lisa C Shriver-Lake
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Dan Zabetakis
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Walter J Dressick
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - David A Stenger
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Scott A Trammell
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
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Cheng Y, Kang W, Guo Y, Du C, Xie Y, Chen Y, Yao W, Qian H. Visual detection of Cu2+ based on fluorescence quenching of green-synthesized gold nanoclusters using soy protein as template. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1314451] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Yuliang Cheng
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Wenhan Kang
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Yahui Guo
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Chao Du
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - Yunfei Xie
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | | | - Weirong Yao
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
| | - He Qian
- State Key Lab of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi, People’s Republic of China
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Yuan Y, Panwar N, Yap SHK, Wu Q, Zeng S, Xu J, Tjin SC, Song J, Qu J, Yong KT. SERS-based ultrasensitive sensing platform: An insight into design and practical applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.02.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Ding X, Miao B, Gu Z, Wu B, Hu Y, Wang H, Zhang J, Wu D, Lu W, Li J. Highly sensitive extended gate-AlGaN/GaN high electron mobility transistor for bioassay applications. RSC Adv 2017. [DOI: 10.1039/c7ra10028k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
An extended gate-AlGaN/GaN high electron mobility transistor (EG-AlGaN/GaN HEMT) with a high sensitivity for bioassay has been developed.
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