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Dutta T, Noushin T, Tabassum S, Mishra SK. Road Map of Semiconductor Metal-Oxide-Based Sensors: A Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:6849. [PMID: 37571634 PMCID: PMC10422562 DOI: 10.3390/s23156849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023]
Abstract
Identifying disease biomarkers and detecting hazardous, explosive, flammable, and polluting gases and chemicals with extremely sensitive and selective sensor devices remains a challenging and time-consuming research challenge. Due to their exceptional characteristics, semiconducting metal oxides (SMOxs) have received a lot of attention in terms of the development of various types of sensors in recent years. The key performance indicators of SMOx-based sensors are their sensitivity, selectivity, recovery time, and steady response over time. SMOx-based sensors are discussed in this review based on their different properties. Surface properties of the functional material, such as its (nano)structure, morphology, and crystallinity, greatly influence sensor performance. A few examples of the complicated and poorly understood processes involved in SMOx sensing systems are adsorption and chemisorption, charge transfers, and oxygen migration. The future prospects of SMOx-based gas sensors, chemical sensors, and biological sensors are also discussed.
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Affiliation(s)
- Taposhree Dutta
- Department of Chemistry, IIEST Shibpur, Howrah 711103, West Bengal, India;
| | - Tanzila Noushin
- Department of Electrical and Computer Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA;
| | - Shawana Tabassum
- Department of Electrical Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA;
| | - Satyendra K. Mishra
- Danish Offshore Technology Center, Technical University of Denmark, 2800 Lyngby, Denmark
- SRCOM, Centre Technologic de Telecomunicacions de Catalunya, 08860 Castelldefels, Barcelona, Spain
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2
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Obtaining of Al Nanosized Thin Layers and Their Structural Properties. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07449-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Zhai X, Xu F, Li Y, Jun F, Li S, Zhang C, Wang H, Cao B. A highly selective and recyclable sensor for the electroanalysis of phosphothioate pesticides using silver-doped ZnO nanorods arrays. Anal Chim Acta 2021; 1152:338285. [PMID: 33648640 DOI: 10.1016/j.aca.2021.338285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/20/2021] [Accepted: 01/31/2021] [Indexed: 10/22/2022]
Abstract
Silver-doped ZnO nanorods (Ag/ZnO) arrays have in-situ grown onto indium tin oxide (ITO) via the one-pot hydrothermal route towards a highly selective and recyclable electroanalysis of phosphothioate pesticides (PTs) with phoxim (Phox) as a model. It was discovered that the Ag/ZnO arrays-modified electrode could obtain a steady and sharp electrochemical output of solid-state Ag/AgCl at a low potential (i.e., 0.12 V). More importantly, the achieved Ag/AgCl signals could decrease selectively induced by sulfide (S)-containing Phox by the specific Cl-S displacement reaction, which would trigger AgCl into non-electroactive Ag-Phox complex. The Ag/ZnO arrays-modified sensors present a linear range from 0.050 to 700.0 μM for the detection of Phox, with a limit of detection down to 0.010 μM. The practical applicability of the developed electroanalysis strategy was successfully employed to detect Phox in the tap water and cabbage samples. Moreover, the photocatalytic performances of the Ag/ZnO arrays were subsequently verified for the degradation of Phox, displaying the higher photocatalytic efficiency than pure ZnO nanorods. Besides, the as-developed sensor can allow for the recyclable detection of Phox by the Ag/ZnO-photocatalyzed removal of Phox after each of the detection cycles. Therefore, the sensors platform based on Ag/ZnO arrays can be expected to have potential for the electrochemical monitoring and photocatalytic degradation of toxic pesticides in the food and environmental fields.
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Affiliation(s)
- Xiurong Zhai
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China; Department of Chemistry and Chemical Engineering, Jining University, Qufu City, Shandong Province, 273155, PR China
| | - Fan Xu
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China
| | - Yujiao Li
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China
| | - Fangying Jun
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China
| | - Shuai Li
- Institute of Medicine and Materials Applied Technologies, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Chunxian Zhang
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China; Department of Chemistry and Chemical Engineering, Jining University, Qufu City, Shandong Province, 273155, PR China
| | - Hua Wang
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China; Institute of Medicine and Materials Applied Technologies, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China.
| | - Bingqiang Cao
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, PR China.
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Lu KC, Wang JK, Lin DH, Chen X, Yin SY, Chen GS. Construction of a novel electrochemical biosensor based on a mesoporous silica/oriented graphene oxide planar electrode for detecting hydrogen peroxide. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2661-2667. [PMID: 32930296 DOI: 10.1039/d0ay00430h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A constant magnetic field (CMF) was used to arrange the orientation of graphene oxide (GO) which was modified on a self-made screen-printed electrode. We evaluated the efficiency of this method for potential analytical application towards the sensing of hydrogen peroxide (H2O2). Mesoporous silica (MS)-encapsulated horseradish peroxidase (HRP) was immobilized on the electrode with vertically arranged GO to construct an H2O2 sensor (denoted as CMF/GO/HRP@MS). The linear range of the response of the CMF/GO/HRP@MS sensor to H2O2 was 0.1-235 μM, and the detection limit was as low as 0.01 μM. The results demonstrated that the vertical arrangement of GO resulting from the CMF on the electrode surface could increase the electron transfer rate. The excellent selectivity and anti-interference ability of this sensor to H2O2 in physiological samples may be attributed to the synergistic effect of mesoporous silica, GO and constant magnetic field.
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Affiliation(s)
- Kun-Chao Lu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Ji-Kui Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Dong-Hai Lin
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
| | - Xue Chen
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Shi-Yu Yin
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Guo-Song Chen
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China.
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5
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Synthesis of enhanced fluorescent graphene quantum dots for catecholamine neurotransmitter sensing. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0507-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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6
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Mullani SB, Tawade AK, Tayade SN, Sharma KKK, Deshmukh SP, Mullani NB, Mali SS, Hong CK, Swamy BEK, Delekar SD. Synthesis of Ni 2+ ion doped ZnO–MWCNTs nanocomposites using an in situ sol–gel method: an ultra sensitive non-enzymatic uric acid sensing electrode material. RSC Adv 2020; 10:36949-36961. [PMID: 35521260 PMCID: PMC9057054 DOI: 10.1039/d0ra06290a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 09/30/2020] [Indexed: 12/25/2022] Open
Abstract
Nickel (Ni2+) ion doped zinc oxide-multi-wall carbon nanotubes (NZC) with different composition ratios of MWCNTs (from 0.01 to 0.1 wt%) are synthesized through an in situ sol–gel method. The synthesized NZC nanocomposites (NCs) are used as electrode materials with glassy carbon electrodes (GCEs) for electrochemical detection of uric acid (UA). The cyclic voltammogram of the representative NZC 0.1 modified GCE (NZC 0.1/GCE) revealed the highest electrochemical sensing activity towards the oxidation of UA at 0.37 V in 0.2 M phosphate buffer solution (PBS) having pH 7.4 ± 0.02. The limit of detection (LOD) and limit of quantification (LOQ) for the NZC 0.1/GCE are determined to be 5.72 nM and 19.00 nM (S/N = 3) respectively, which is the lowest compared to the literature values reported for enzymatic and non-enzymatic detection techniques. The synergistic effect of NZC 0.1 NCs is proposed as one of the factors for the enhanced electrochemical oxidation of UA complemented by the phase, lattice parameters, functional groups, morphology, elemental compositions, types of bonding and specific surface area with pore size ascertained using various techniques. The synthesized NZC 0.1 NCs are further proposed as selective electrode materials for the electrochemical detection of UA as authenticated further by performing interference tests with other metabolites such as ascorbic acid (AA), dopamine (DA) and d-glucose. The optimized electrochemical studies are further adopted for sensing of UA from human excretion samples using NZC 0.1 NCs. Nickel (Ni2+) ion doped zinc oxide-multi-wall carbon nanotubes (NZC) with different composition ratios of MWCNTs (from 0.01 to 0.1 wt%) are synthesized through an in situ sol–gel method.![]()
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Affiliation(s)
| | - Anita K. Tawade
- School of Nanoscience and Biotechnology
- Shivaji University
- Kolhapur 416004
- India
| | | | | | - Shamkumar P. Deshmukh
- Department of Chemistry
- Shivaji University
- Kolhapur 416004
- India
- Department of Chemistry
| | - Navaj B. Mullani
- Department of Advanced Materials and Chemical Engineering
- Hanyang University
- Ansan
- 15588 South Korea
| | - Sawanta S. Mali
- Department of Advanced Chemical Engineering
- Chonnam National University
- Gwangju
- 61186 South Korea
| | - Chang Kook Hong
- Department of Advanced Chemical Engineering
- Chonnam National University
- Gwangju
- 61186 South Korea
| | - B. E. Kumara Swamy
- Department of P.G. Studies and Research in Industrial Chemistry
- Kuvempu University
- Shimoga
- India
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7
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Affiliation(s)
- Ayesha Kausar
- School of Natural Sciences, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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8
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Ridhuan NS, Abdul Razak K, Lockman Z. Fabrication and Characterization of Glucose Biosensors by Using Hydrothermally Grown ZnO Nanorods. Sci Rep 2018; 8:13722. [PMID: 30213995 PMCID: PMC6137152 DOI: 10.1038/s41598-018-32127-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 08/31/2018] [Indexed: 11/24/2022] Open
Abstract
Highly oriented ZnO nanorod (NR) arrays were fabricated on a seeded substrate through a hydrothermal route. The prepared ZnO nanorods were used as an amperometric enzyme electrode, in which glucose oxidase (GOx) was immobilised through physical adsorption. The modified electrode was designated as Nafion/GOx/ZnO NRs/ITO. The morphology and structural properties of the fabricated ZnO nanorods were analysed using field-emission scanning electron microscope and X-ray diffractometer. The electrochemical properties of the fabricated biosensor were studied by cyclic voltammetry and amperometry. Electrolyte pH, electrolyte temperature and enzyme concentration used for immobilisation were the examined parameters influencing enzyme activity and biosensor performance. The immobilised enzyme electrode showed good GOx retention activity. The amount of electroactive GOx was 7.82 × 10−8 mol/cm2, which was relatively higher than previously reported values. The Nafion/GOx/ZnO NRs/ITO electrode also displayed a linear response to glucose ranging from 0.05 mM to 1 mM, with a sensitivity of 48.75 µA/mM and a low Michaelis–Menten constant of 0.34 mM. Thus, the modified electrode can be used as a highly sensitive third-generation glucose biosensor with high resistance against interfering species, such as ascorbic acid, uric acid and L-cysteine. The applicability of the modified electrode was tested using human blood samples. Results were comparable with those obtained using a standard glucometer, indicating the excellent performance of the modified electrode.
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Affiliation(s)
- Nur Syafinaz Ridhuan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia
| | - Khairunisak Abdul Razak
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia. .,NanoBiotechnology Research & Innovation (NanoBRI), INFORMM, Universiti Sains Malaysia, 11800 USM, Gelugor, Penang, Malaysia.
| | - Zainovia Lockman
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia
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Zhang R, Jiang J, Zhou J, Xu Y, Xiao R, Xia X, Rao Z. Biofunctionalized "Kiwifruit-Assembly" of Oxidoreductases in Mesoporous ZnO/Carbon Nanoparticles for Efficient Asymmetric Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1705443. [PMID: 29359821 DOI: 10.1002/adma.201705443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/12/2017] [Indexed: 06/07/2023]
Abstract
A mesoporous ZnO/carbon composite is designed for coimmobilization of two oxidoreductases involving a novel "kiwifruit-assembly" pattern. The coimmobilization of (S)-carbonyl reductase II-glucose dehydrogenase on nanoparticles (SCRII-GDHnano ) exhibits 40-50% higher specific activity than the free enzyme and significantly improves stabilities of enzymes to heat, pH and solvents. It performs asymmetric catalysis of 75 × 10-3 m substrate with a perfect yield of 100% and an excellent enantioselectivity of 99.9% within 1 h. SCRII-GDHnano gives an over 72% yield and 99.9% enantioselectivity after it is reused for ten times. Even with a highly concentrated (400 × 10-3 m) substrate, it shows about 60% yield and 99.9% enantioselectivity within 4 h. SCRII-GDHnano presents 4.5-8.0-fold higher productivity in 2.0-8.0-fold shorter reaction time than the free enzyme. This work provides a general, facile, and unique approach for the immobilization of two oxidoreductases and gives high catalytic efficiency, long-term and good recycling stabilities by triggering radical proton-coupled electron transfer.
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Affiliation(s)
- Rongzhen Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jiawei Jiang
- Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Junping Zhou
- Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Rong Xiao
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ, 08854, USA
| | - Xinhui Xia
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zhiming Rao
- Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
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10
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Luo L, Cui J, Wang Y, Wang Y, Zheng H, Qin Y, Shu X, Yu D, Zhang Y, Wu Y. Synthesis of NiO/Fe2O3 nanocomposites as substrate for the construction of electrochemical biosensors. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-3882-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Shi L, Cai X, Li H, He H, Zhao H, Lan M. ZIF-67 Derived Porous Carbon from Calcination and Acid Etching Process as an Enzyme Immobilization Platform for Glucose Sensing. ELECTROANAL 2018. [DOI: 10.1002/elan.201700678] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Libo Shi
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Xuan Cai
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Hong Li
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Haiyan He
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Hongli Zhao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Minbo Lan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
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12
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Liu X, Na W, Liu H, Su X. Fluorescence turn-off-on probe based on polypyrrole/graphene quantum composites for selective and sensitive detection of paracetamol and ascorbic acid. Biosens Bioelectron 2017; 98:222-226. [DOI: 10.1016/j.bios.2017.06.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/14/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022]
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13
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Fan P, Liu L, Guo Q, Wang J, Yang J, Guan X, Chen S, Hou H. Three-dimensional N-doped carbon nanotube@carbon foam hybrid: an effective carrier of enzymes for glucose biosensors. RSC Adv 2017. [DOI: 10.1039/c7ra02592k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
NCNTs anchored on carbon foam lead to an effective carrier of enzymes for biosensors.
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Affiliation(s)
- Pinchao Fan
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Lijuan Liu
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Qiaohui Guo
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Junli Wang
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Jinhua Yang
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Xiaoyu Guan
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Shuiliang Chen
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Haoqing Hou
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
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14
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Nanobioremediation Technologies for Sustainable Environment. BIOREMEDIATION AND SUSTAINABLE TECHNOLOGIES FOR CLEANER ENVIRONMENT 2017. [DOI: 10.1007/978-3-319-48439-6_2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Smart Nanocomposites of Cu-Hemin Metal-Organic Frameworks for Electrochemical Glucose Biosensing. Sci Rep 2016; 6:36637. [PMID: 27811998 PMCID: PMC5095656 DOI: 10.1038/srep36637] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/14/2016] [Indexed: 02/07/2023] Open
Abstract
Herein, a smart porous material, Cu-hemin metal-organic-frameworks (Cu-hemin MOFs), was synthesized via assembling of Cu2+ with hemin to load glucose oxidase (GOD) for electrochemical glucose biosensing for the first time. The formation of the Cu-hemin MOFs was verified by scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, N2 adsorption/desorption isotherms, UV-vis absorption spectroscopy, fluorescence spectroscopy, thermal analysis and electrochemical techniques. The results indicated that the Cu-hemin MOFs showed a ball-flower-like hollow cage structure with a large specific surface area and a large number of mesopores. A large number of GOD molecules could be successfully loaded in the pores of Cu-hemin MOFs to keep their bioactivity just like in a solution. The GOD/Cu-hemin MOFs exhibited both good performance toward oxygen reduction reaction via Cu-hemin MOFs and catalytic oxidation of glucose via GOD, superior to other GOD/MOFs and GOD/nanomaterials. Accordingly, the performance of GOD/Cu-hemin MOFs-based electrochemical glucose sensor was enhanced greatly, showing a wide linear range from 9.10 μM to 36.0 mM and a low detection limit of 2.73 μM. Moreover, the sensor showed satisfactory results in detection of glucose in human serum. This work provides a practical design of new electrochemical sensing platform based on MOFs and biomolecules.
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Wu W, Mao H, Han X, Xu J, Wang W. Fabrication and characterization of SiO2/Si heterogeneous nanopillar arrays. NANOTECHNOLOGY 2016; 27:305301. [PMID: 27319739 DOI: 10.1088/0957-4484/27/30/305301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This work presents arrays of heterogeneous nanopillars stacked with Si bodies and SiO2 heads for biomedical applications. Novel crossed and overlapped spacer techniques are proposed to fabricate the nanopillar arrays in controllable dimensions. For the nanopillars in the arrays, the minimum spacing, body diameter and head tip-radius reach 100 nm, 23 nm and 11 nm, respectively. The maximum height is 1.2 μm. In addition, because of hydrophilic/hydrophobic selectivity between the SiO2 heads and Si bodies, localized nanoliter water-droplet condensing, fluorescein solution extraction and protein capturing are observed on the SiO2 pillar heads. These experiments demonstrate the great potential of heterogeneous nanopillars in biomedical applications.
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Affiliation(s)
- Wengang Wu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing 100871, People's Republic of China. Innovation Center for MicroNanoelectronics and Integrated System, Beijing 100871, People's Republic of China
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17
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Han L, Shao C, Liang B, Liu A. Genetically Engineered Phage-Templated MnO2 Nanowires: Synthesis and Their Application in Electrochemical Glucose Biosensor Operated at Neutral pH Condition. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13768-13776. [PMID: 27228383 DOI: 10.1021/acsami.6b03266] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To conveniently obtain one-dimensional MnO2 nanowires (NWs) with controlled structure and unique properties for electron transfer, the genetically engineered M13 phages were used as templates for precise nucleation and growth of MnO2 crystals in filamentous phage scaffolds, via the spontaneous oxidation of Mn(2+) in alkaline solution. It was found that the morphology of NWs could be tailored by the surface charge of M13 mutants. MnO2 crystals were uniformly distributed on the surface of negatively charged tetraglutamate-fused phage (M13-E4), significantly different from irregular MnO2 agglomeration on the weakly negatively charged wild-type phage and positively charged tetraarginine-fused phage. The as-synthesized M13-E4@MnO2 NWs could catalyze the electro-oxidation of H2O2 at neutral pH. To demonstrate the superiority of the electrocatalytic activity in the solution containing plenty of chloride ions at neutral pH, both glucose oxidase and as-prepared MnO2 NWs were used for fabricating the glucose biosensor. The proposed biosensor showed a wide linear range (5 μM to 2 mM glucose), a low limit of detection of 1.8 μM glucose (S/N = 3), good interassay and intra-assay reproducibility and satisfactory storage stability. Due to the superiorities of synthesis and electrochemical performance, the as-prepared MnO2 NWs are promising for applications in electrocatalysis, electrochemical sensor, and supercapacitor.
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Affiliation(s)
- Lei Han
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Changxu Shao
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Bo Liang
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, Chinese Academy of Sciences , 189 Songling Road, Qingdao 266101, China , and
| | - Aihua Liu
- Institute for Biosensing, and College of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266071, China
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18
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Site specific interaction of aromatic amino acids with ZnO nanotubes: A density functional approach. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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19
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Lu J, Shi Z, Wang Y, Lin Y, Zhu Q, Tian Z, Dai J, Wang S, Xu C. Plasmon-enhanced Electrically Light-emitting from ZnO Nanorod Arrays/p-GaN Heterostructure Devices. Sci Rep 2016; 6:25645. [PMID: 27181337 PMCID: PMC4867586 DOI: 10.1038/srep25645] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 04/20/2016] [Indexed: 11/14/2022] Open
Abstract
Effective and bright light-emitting-diodes (LEDs) have attracted broad interests in fundamental research and industrial application, especially on short wavelength LEDs. In this paper, a well aligned ZnO nanorod arrays grown on the p-GaN substrate to form a heterostructured light-emitting diode and Al nanoparticles (NPs) were decorated to improve the electroluminescence performance. More than 30-folds enhancement of the electroluminescence intensity was obtained compared with the device without Al NPs decoration. The investigation on the stable and transient photoluminescence spectraof the ZnO nanorod arrays before and after Al NPs decoration demonstrated that the metal surface plasmon resonance coupling with excitons of ZnO leads to the enhancement of the internal quantum efficiency (IQE). Our results provide aneffective approach to design novel optoelectronic devices such as light-emitting diodes and plasmonic nanolasers.
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Affiliation(s)
- Junfeng Lu
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zengliang Shi
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yueyue Wang
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yi Lin
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Qiuxiang Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zhengshan Tian
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Jun Dai
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
| | - Shufeng Wang
- Institute of Modern Optics &State Key Laboratory for Mesoscopic Physics, School of Physics,Peking University, Beijing 100871, China
| | - Chunxiang Xu
- State Key Laboratory of Bioelectronics, School of Biological Science &Medical Engineering, Southeast University, Nanjing 210096, China
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20
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Hu Q, Liu X, Wu C, You Q, Shi T, Zhang W. A general and rapid approach to hybrid metal nanoparticle–ZnO nanowire arrays and their use as active substrates for surface-enhanced Raman scattering detection. RSC Adv 2016. [DOI: 10.1039/c5ra24113h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rapid SERS substrate preparation: an aqueous phase reaction of metal precursors with ZnO@Zn has been exploited for synthesizing SERS-active metal–ZnO nanowire arrays.
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Affiliation(s)
- Qiyan Hu
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
| | - Xiaowang Liu
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
| | - Chaoting Wu
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
| | - Qing You
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
| | - Tianchao Shi
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
| | - Wu Zhang
- College of Chemistry and Materials Science
- Anhui Normal University
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
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21
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Song Y, Lu X, Li Y, Guo Q, Chen S, Mao L, Hou H, Wang L. Nitrogen-Doped Carbon Nanotubes Supported by Macroporous Carbon as an Efficient Enzymatic Biosensing Platform for Glucose. Anal Chem 2015; 88:1371-7. [DOI: 10.1021/acs.analchem.5b03938] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yonghai Song
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Xingping Lu
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Yi Li
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Qiaohui Guo
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Shuiliang Chen
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haoqing Hou
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Li Wang
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry
and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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22
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Wang N, Gao C, Xue F, Han Y, Li T, Cao X, Zhang X, Zhang Y, Wang ZL. Piezotronic-effect enhanced drug metabolism and sensing on a single ZnO nanowire surface with the presence of human cytochrome P450. ACS NANO 2015; 9:3159-3168. [PMID: 25758259 DOI: 10.1021/acsnano.5b00142] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cytochromes P450 (CYPs) enzymes are involved in catalyzing the metabolism of various endogenous and exogenous compounds. A rapid analysis of drug metabolism reactions by CYPs is required because they can metabolize 95% of current drugs in drug development and effective therapies. Here, we describe a study of piezotronic-effect enhanced drug metabolism and sensing by utilizing a single ZnO nanowire (ZnO NW) device. Owing to the unique hydrophobic feature of a ZnO NW that provides a desirable "microenvironment" for the immobilization of biomolecules, our device can effectively stimulate the tolbutamide metabolism by decorating a ZnO NW with cytochrome P4502C9/CYPs reductase (CYP2C9/CPR) microsomes. By applying an external compressive strain to the ZnO nanowire, the piezotronic effect, which plays a primary role in tuning the transport behavior of a ZnO NW utilizing the created piezoelectric polarization charges at the local interface, can effectively enhance the performance of the device. A theoretical model is proposed using an energy band diagram to explain the experimental data. This study provides a potential approach to study drug metabolism and trace drug detection based on the piezotronic effect.
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Affiliation(s)
- Ning Wang
- †School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- §School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
| | - Caizhen Gao
- †School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- §School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
| | - Fei Xue
- ‡Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
| | - Yu Han
- ‡Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
- §School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
| | - Tao Li
- ‡Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
| | - Xia Cao
- †School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- ‡Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
| | - Xueji Zhang
- †School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yue Zhang
- †School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Zhong Lin Wang
- ‡Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
- ∥School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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23
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Ahmad R, Tripathy N, Park JH, Hahn YB. A comprehensive biosensor integrated with a ZnO nanorod FET array for selective detection of glucose, cholesterol and urea. Chem Commun (Camb) 2015; 51:11968-71. [DOI: 10.1039/c5cc03656a] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ZnO NR integrated FET array biosensor with immobilized enzymes.
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Affiliation(s)
- Rafiq Ahmad
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing Research
- Chonbuk National University
- Jeonju 561-756
- Republic of Korea
| | - Nirmalya Tripathy
- Department of BIN Fusion Technology
- Chonbuk National University
- Jeonju 561-756
- Republic of Korea
| | - Jin-Ho Park
- Department of Veterinary Internal Medicine
- College of Veterinary Medicine
- Chonbuk National University
- Jeonju 561-756
- Republic of Korea
| | - Yoon-Bong Hahn
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing Research
- Chonbuk National University
- Jeonju 561-756
- Republic of Korea
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24
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Chen J, Zhu R, Huang J, Zhang M, Liu H, Sun M, Wang L, Song Y. A glucose biosensor based on glucose oxidase immobilized on three-dimensional porous carbon electrodes. Analyst 2015; 140:5578-84. [DOI: 10.1039/c5an00200a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A schematic illustration of a 3D-KSC/GOD glucose biosensor is presented.
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Affiliation(s)
- Jingyi Chen
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Rong Zhu
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Jia Huang
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Man Zhang
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Hongyu Liu
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Min Sun
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Li Wang
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
| | - Yonghai Song
- Key Laboratory of Functional Small Organic Molecule
- Ministry of Education
- Key Laboratory of Chemical Biology
- Jiangxi Province
- College of Chemistry and Chemical Engineering
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25
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Zhang L, Zhou C, Luo J, Long Y, Wang C, Yu T, Xiao D. A polyaniline microtube platform for direct electron transfer of glucose oxidase and biosensing applications. J Mater Chem B 2015; 3:1116-1124. [DOI: 10.1039/c4tb01604a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polyaniline microtube platform was fabricated for direct electron transfer of glucose oxidase and biosensing applications.
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Affiliation(s)
- Lei Zhang
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Cuisong Zhou
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Jiaojiao Luo
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Yuyin Long
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Congmin Wang
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Tingting Yu
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
| | - Dan Xiao
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- Sichuan University
- Chengdu
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26
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Glucose biosensor based on multisegment nanowires exhibiting reversible magnetic control. Talanta 2014; 129:276-81. [DOI: 10.1016/j.talanta.2014.05.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/18/2014] [Accepted: 05/19/2014] [Indexed: 11/22/2022]
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27
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Dopamine fluorescent sensors based on polypyrrole/graphene quantum dots core/shell hybrids. Biosens Bioelectron 2014; 64:404-10. [PMID: 25278481 DOI: 10.1016/j.bios.2014.09.038] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/11/2014] [Accepted: 09/16/2014] [Indexed: 12/25/2022]
Abstract
A facilely prepared fluorescent sensor was developed for dopamine (DA) detection with high sensitivity and selectivity based on polypyrrole/graphene quantum dots (PPy/GQDs) core/shell hybrids. The composites exhibit strong fluorescence emission, which is dramatically enhanced as high as three times than pristine GQDs. The prepared sensor allows a highly sensitive determination of DA by fluorescent intensity decreasing with the addition of DA and presents a good linearity in range of 5-8000 nM with the detection limit of 10 pM (S/N = 3). Furthermore, the application of the proposed approach have been demonstrated in real samples and showed promise in diagnostic purposes.
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28
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Sheng M, Gao Y, Sun J, Gao F. Carbon nanodots–chitosan composite film: A platform for protein immobilization, direct electrochemistry and bioelectrocatalysis. Biosens Bioelectron 2014; 58:351-8. [DOI: 10.1016/j.bios.2014.03.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 02/20/2014] [Accepted: 03/03/2014] [Indexed: 11/16/2022]
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29
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Tseng YT, Lin JC, Ciou YJ, Hwang YR. Fabrication of a novel microsensor consisting of electrodeposited ZnO nanorod-coated crossed Cu micropillars and the effects of nanorod coating morphology on the gas sensing. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11424-11438. [PMID: 24960114 DOI: 10.1021/am5019836] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel microsensor, consisting of crossed Cu micropillars coated with ZnO nanorods, was fabricated by electrochemical methods for detecting gas in a small space. The Cu micropillars (80 μm diameter, 10 mm long) were prepared by microanode-guided electroplating (MAGE) on the periphery of a square copper pad (dimensions 5.0 mm × 5.0 mm × 1.0 mm). The micropillars were electrochemically coated with a 500 nm thick layer of ZnO nanorods deposited from a bath containing 2.0 mM zinc chloride and H2O2 varying in 5, 10, 15, and 20 mM. Two ZnO-coated pillars were crossed to form a microsensor by approaching the Cu pads below, which was adhered to an alumina substrate with silver paste and connected to conducting wires for measurement. The morphology of the coating of ZnO nanorods, which was found to be determined by the concentration of H2O2 in the bath, influenced the gas sensing. The morphology of the coating was characterized by scanning electron microscopy; the structural analysis was carried out by X-ray diffraction and high-resolution transmission electron microscopy (HRTEM); the surface analysis was carried out by X-ray photoelectron spectroscopy; and the defects were determined with photoluminescence (PL) spectra. We thus investigated the effect of the morphology of the coating on the sensing properties by introducing a stream of gases varying in CO/air ratios to understand the sensing mechanism of the microsensor.
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Affiliation(s)
- Yao-Tien Tseng
- Institute of Materials Science and Engineering and ‡Department of Mechanical Engineering, National Central University , Taoyuan 32001, Taiwan
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30
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Shit A, Chatterjee S, Nandi AK. Dye-sensitized solar cell from polyaniline–ZnS nanotubes and its characterization through impedance spectroscopy. Phys Chem Chem Phys 2014; 16:20079-88. [DOI: 10.1039/c4cp02175d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DSSC fabricated with polyaniline–ZnS nanotubes exhibits reversible turn “on” and “off” capability with an efficiency of 3.4%, as shown by a Nyquist plot, characterizing different transport processes.
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Affiliation(s)
- Arnab Shit
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700032, India
| | - Shreyam Chatterjee
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700032, India
| | - Arun K. Nandi
- Polymer Science Unit
- Indian Association for the Cultivation of Science
- Kolkata-700032, India
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31
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32
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Zhao Y, Zhao J, Su Z, Ma D, Hao X, Lu Y, Guo J. Room temperature synthesis of Cu nanocages through Ni-induced electroless process. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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34
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A novel bi-protein bio-interphase of cytochrome c and glucose oxidase: Electron transfer and electrocatalysis. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.075] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Dey RS, Raj CR. A hybrid functional nanoscaffold based on reduced graphene oxide–ZnO for the development of an amperometric biosensing platform. RSC Adv 2013. [DOI: 10.1039/c3ra43773f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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36
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Arya SK, Saha S, Ramirez-Vick JE, Gupta V, Bhansali S, Singh SP. Recent advances in ZnO nanostructures and thin films for biosensor applications: review. Anal Chim Acta 2012; 737:1-21. [PMID: 22769031 DOI: 10.1016/j.aca.2012.05.048] [Citation(s) in RCA: 206] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 05/25/2012] [Accepted: 05/28/2012] [Indexed: 01/31/2023]
Abstract
Biosensors have shown great potential for health care and environmental monitoring. The performance of biosensors depends on their components, among which the matrix material, i.e., the layer between the recognition layer of biomolecule and transducer, plays a crucial role in defining the stability, sensitivity and shelf-life of a biosensor. Recently, zinc oxide (ZnO) nanostructures and thin films have attracted much interest as materials for biosensors due to their biocompatibility, chemical stability, high isoelectric point, electrochemical activity, high electron mobility, ease of synthesis by diverse methods and high surface-to-volume ratio. ZnO nanostructures have shown the binding of biomolecules in desired orientations with improved conformation and high biological activity, resulting in enhanced sensing characteristics. Furthermore, compatibility with complementary metal oxide semiconductor technology for constructing integrated circuits makes ZnO nanostructures suitable candidate for future small integrated biosensor devices. This review highlights recent advances in various approaches towards synthesis of ZnO nanostructures and thin films and their applications in biosensor technology.
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Affiliation(s)
- Sunil K Arya
- Bioelectronics Program, Institute of Microelectronics, Singapore Science Park II, Singapore 117685, Singapore.
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37
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Hahn YB, Ahmad R, Tripathy N. Chemical and biological sensors based on metal oxide nanostructures. Chem Commun (Camb) 2012; 48:10369-85. [DOI: 10.1039/c2cc34706g] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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38
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Cai CJ, Xu MW, Bao SJ, Lei C, Jia DZ. A facile route for constructing a graphene-chitosan-ZrO2 composite for direct electron transfer and glucose sensing. RSC Adv 2012. [DOI: 10.1039/c2ra20926h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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