电化学辅助合成新型碳纳米管生物矿化基的细胞支撑骨架
作者：
王小庆;张伟;龚静鸣
作者机构：
[王小庆; 张伟; 龚静鸣] 华中师范大学化学学院农药与化学生物学教育部重点实验室
会议名称：
第十一届全国电分析化学会议
会议时间：
2011-05-12
会议地点：
山东聊城
会议论文集名称：
第十一届全国电分析化学会议论文集
关键词：
电化学;碳纳米管;生物矿化基;细胞支撑骨架
摘要：
<正>我们通过电化学诱导合成了碳纳米管-碳酸钙复合材料,该材料具有新颖的纳米结构,对一些实验参数(例如:电沉积时间,电压,p H值及前驱物浓度等)进行优化,最终获得了形貌可控的多孔三维网状结构。同时对该结构分别进行了扫描电子显微镜,透射电子显微镜,X-射线衍射及接触角的表征。为了进一步探究制备的复合材料可以作为细胞培养的支撑载体,我们首先选择了癌细胞去观察材料对该细胞的黏附及其增殖影响。最终我们可
语种：
中文
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Efficient removal of heavy metal ions from aqueous systems with the assembly of anisotropic layered double hydroxide nanocrystals@carbon nanosphere
作者：
Gong, Jingming* ;Liu, Ting;Wang, Xiaoqing;Hu, Xianluo;Zhang, Lizhi
期刊：
Environmental Science & Technology ,2011年45(14):6181-6187 ISSN：0013-936X
通讯作者：
Gong, Jingming
作者机构：
[Zhang, Lizhi; Gong, Jingming; Liu, Ting; Wang, Xiaoqing] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.;[Hu, Xianluo] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mold Technol, Coll Mat Sci & Engn, Wuhan 430074, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.
摘要：
We report on the efficient removal of heavy metal ions from simulated wastewater with a nanostructured assembly. The nanoassembly was obtained via direct assembling the performed anisotropic layered double hydroxide nanocrystals (LDH-NCs) onto the surface of carbon nanospheres (labeled as LDH-NCs@CNs). It was found that the maximum adsorption capacity of the nanoassembly toward Cu<sup>2+</sup> was ∼19.93 mg g<sup>-1</sup> when the initial Cu<sup>2+</sup> concentration was 10.0 mg L<sup>-1</sup>, displaying a high efficiency for the removal of heavy metal ions. The Freundlich adsorption isotherm was applicable to describe the removal processes. Kinetics of the Cu<sup>2+</sup> removal was found to follow pseudo-second-order rate equation. Furthermore, the as-prepared building unit of the assembly, including LDH-NCs, CNs, and the assembly, as well as Cu<sup>2+</sup>-adsorbed assembly, were carefully examined by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), nitrogen sorption measurements, and X-ray photoelectron spectroscopy (XPS). Based on the characterization results, a possible mechanism of Cu<sup>2+</sup> removal with the assembly of LDH-NCs@CNs was proposed. Comparison experiments show that the adsorption capacity of the resulting LDH-NCs@CNs assembly was much higher than its any building unit alone (CNs or LDH-NCs), exhibiting the deliberation of the assembly on water decontamination. This work provides a very efficient, fast and convenient approach for exploring promising nanoassembly materials for water treatment. ©2011 American Chemical Society.
语种：
英文
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An enzymeless organophosphate pesticide sensor using Au nanoparticle-decorated graphene hybrid nanosheet as solid-phase extraction
作者：
Gong, Jingming* ;Miao, Xingju;Zhou, Ting;Zhang, Lizhi
期刊：
Talanta ,2011年85(3):1344-1349 ISSN：0039-9140
通讯作者：
Gong, Jingming
作者机构：
[Zhang, Lizhi; Gong, Jingming; Zhou, Ting; Miao, Xingju] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Monodispersed Au nanoparticles;Graphene;Solid phase extraction (SPE);Stripping voltammetric analysis;Methyl parathion
摘要：
A sensitive enzymeless organophosphate pesticides (OPs) sensor is fabricated by using Au nanoparticles (AuNPs) decorated graphene nanosheets (GNs) modified glassy carbon electrode as solid phase extraction (SPE). Such a nanostructured composite film, combining the advantages of AuNPs with two dimensional GNs, dramatically facilitates the enrichment of nitroaromatic OPs onto the surface and realizes their stripping voltammetric detection of OPs by using methyl parathion (MP) as a model. The stripping voltammetric performances of captured MP were evaluated by cyclic voltammetric and square-wave voltammetric analysis. The combination of the nanoassembly of AuNPs-GNs, SPE, and stripping voltammetry provides a fast, simple, and sensitive electrochemical method for detecting nitroaromatic OPs. The stripping analysis is highly linear over the MP concentration ranges of 0.001-0.1and 0.2-1.0 μg mL<sup>-1</sup> with a detection limit of 0.6 ng mL<sup>-1</sup>. This designed enzymeless sensor exhibits good reproducibility and acceptable stability. ©2011 Elsevier B.V. All rights reserved.
语种：
英文
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Efficient detection of organophosphate pesticide based on a metal-organic framework derived from biphenyltetracarboxylic acid
作者：
Wen, Li-Li* ;Wang, Feng;Leng, Xiao-Ke;Wang, Cheng-Gang;Wang, Lian-Yi;...
期刊：
Crystal Growth & Design ,2010年10(7):2835-2838 ISSN：1528-7483
通讯作者：
Wen, Li-Li
作者机构：
[Leng, Xiao-Ke; Wen, Li-Li; Li, Dong-Feng; Wang, Lian-Yi; Wang, Feng; Wang, Cheng-Gang; Gong, Jing-Ming] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.;[Wen, Li-Li; Li, Dong-Feng] Nanjing Univ, State Key Lab Coordinat Chem, Inst Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China.
通讯机构：
[Wen, Li-Li] C;Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.
摘要：
A new conjugated metal-organic framework based on 2,2′,4,4′- biphenyltetracarboxylic acid with a uninodal fiveconnected hexagonal boron nitride net (bnn) was synthesized, which represented the first example of metal-organic frameworks capable of adsorbing a trace level of organophosphate pestcide for efficient detection via stripping voltammetric analysis. A detection limit of 0.006 μg 3mL<sup>-1</sup> was obtained with the calculation based on a signal-noise ratio equal to 3. ©2010 American Chemical Society.
语种：
英文
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Efficient stripping voltammetric detection of organophosphate pesticides using NanoPt intercalated Ni/Al layered double hydroxides as solid-phase extraction
作者：
Gong, Jingming* ;Wang, Lianyi;Miao, Xingju;Zhang, Lizhi
期刊：
Electrochemistry Communications ,2010年12(11):1658-1661 ISSN：1388-2481
通讯作者：
Gong, Jingming
作者机构：
[Zhang, Lizhi; Gong, Jingming; Wang, Lianyi; Miao, Xingju] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Layered double hydroxides;Methyl parathion;NanoPt;Solid-phase extraction;Stripping voltammetric analysis
摘要：
We developed a simple strategy for designing a sensitive electrochemical stripping voltammetric sensor for organophosphate pesticides (OPs) based on solid-phase extraction (SPE) using nanosized Pt intercalated Ni/Al layered double hydroxides (labeled as NanoPt-LDHs). By assembling NanoPt with LDHs together, the resulting NanoPt-LDHs are highly efficient to capture OPs. It dramatically facilitates the enrichment of OPs onto their surface and realizes the sensitive stripping voltammetric detection of methyl parathion (MP) as a model of OPs. The stripping analysis shows highly linear over MP concentration ranges of 0.001-0.15 and 0.3-1.0 μg mL- 1 with a detection limit of 0.6 ng mL-1 (S/N = 3). The combination of NanoPt, LDHs, SPE, and square-wave voltammetry (SWV) provides a fast, simple, and sensitive electrochemical method for OPs. © 2010 Elsevier B.V. All rights reserved.
语种：
英文
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Stripping voltammetric detection of mercury(II) based on a bimetallic Au-Pt inorganic-organic hybrid nanocomposite modified hlassy carbon electrode
作者：
Gong, Jingming* ;Zhou, Ting;Song, Dandan;Zhang, Lizhi;Hu, Xianluo
期刊：
Analytical Chemistry ,2010年82(2):567-573 ISSN：0003-2700
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Zhang, Lizhi; Gong, Jingming; Zhou, Ting] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Hu, Xianluo] Huazhong Univ Sci & Technol, Coll Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
摘要：
A new, highly sensitive and selective sensor for the electrochemical assay of Hg(II) by anodic stripping vol- tammetry has been developed, whereby a glassy carbon electrode is modified with a novel inorganic-organic hybrid nanocomposite, namely, bimetallic Au-Pt nanoparticles/organic nanofibers (labeled as Au-PtNPs/NFs). The sensor possesses a three-dimensional (3D) porous network nanoarchitecture, in which the bimetallic Au-Pt NPs serving as metal NP-based microelectrode ensembles are homogenously distributed in the matrix of interlaced organic NFs. The surface structure and composition of the sensor were characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Its electrochemical performance was systematically investigated. Our results show that such a newly designed, Au-PtNPs/NF nanohybrid modified electrode provides remarkably improved sensitivity and selectivity for the stripping assay of Hg(II). The detection limit is found to be as low as 0.008 ppb (S/N = 3) that is much below the guideline value from the World Health Organization (WHO). Interferences from other heavy metal ions such as Cu(II), Cr(III), Co(II), Fe(II), Zn(II), and Mn(II) ions associated with mercury analysis are effectively inhibited. Toward the goal for practical applications, the sensor was further evaluated by monitoring Hg(II) in tap and river water specimens. © 2010 American Chemical Society.
语种：
英文
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Monodispersed Au nanoparticles decorated graphene as an enhanced sensing platform for ultrasensitive stripping voltammetric detection of mercury(II)
作者：
Gong, Jingming* ;Zhou, Ting;Song, Dandan;Zhang, Lizhi
期刊：
Sensors and Actuators B-Chemical ,2010年150(2):491-497 ISSN：0925-4005
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Zhang, Lizhi; Gong, Jingming; Zhou, Ting] Cent China Normal Univ, Minist Educ, Coll Chem, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Minist Educ, Coll Chem, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Graphene;Heavy metal;Mercury(II);Monodispersed Au nanoparticles;Stripping analysis
摘要：
We demonstrate a new highly sensitive and selective Hg(II) sensor with a graphene-based nanocomposite film as the enhanced sensing platform. The platform was constructed by homogenously distributing monodispersed Au nanoparticles (AuNPs) onto the two-dimensional (2D) graphene nanosheet matrix. Its surface structure and electrochemical performance were systematically investigated. Such a nanostructured composite film platform could combine with the advantages of AuNPs and graphene nanosheets, greatly facilitate electron-transfer processes and the sensing behavior for Hg(II) detection, leading to a remarkably improved sensitivity and selectivity. The detection limit was found to be as low as 6 ppt (S/N = 3), much below the guideline value from the World Health Organization (WHO). The interference from other heavy metal ions such as Cu<sup>2+</sup>, Cr<sup>3+</sup>, Co<sup>2+</sup>, Fe<sup>3+</sup>, Zn<sup>2+</sup> and I <sup>-</sup> ions associated with mercury analysis could be effectively inhibited. The performance of new sensor was also evaluated by the direct detection of Hg(II) in river water specimens, suggesting it is very promising for practical environmental monitoring applications. ©2010 Elsevier B.V.
语种：
英文
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Electrochemical biosensing of methyl parathion pesticide based on acetylcholinesterase immobilized onto Au-polypyrrole interlaced network-like nanocomposite
作者：
Gong, Jingming* ;Wang, Lianyi;Zhang, Lizhi
期刊：
Biosensors and Bioelectronics ,2009年24(7):2285-2288 ISSN：0956-5663
通讯作者：
Gong, Jingming
作者机构：
[Zhang, Lizhi; Gong, Jingming; Wang, Lianyi] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Polypyrrole nanowires;Gold nanopaticles;Acetylcholinesterase;Methyl parathion;Biosensor
摘要：
We developed a simple strategy for designing a highly sensitive electrochemical biosensor for organophosphate pesticides (OPs) based on acetylcholinesterase (AChE) immobilized onto Au nanoparticles-polypyrrole nanowires composite film modifid glassy carbon electrode (labeled as AChE-Au-PPy/GCE). Where, the generated Au nanoparticles (AuNPs) were homogenously distributed onto the interlaced PPy nanowires (PPy NWs) matrix, constructing a three-dimensional porous network. This network-like nanocomposite not only provided a biocompatible microenvironment to keep the bioactivity of AChE, but also exhibited a strong synergetic effect on improving the sensing properties of OPs. The combination of AuNPs and PPyNWs greatly catalyzed the oxidation of the enzymatically generated thiocholine product, thus increasing the detection sensitivity. On the basis of the inhibition of OPs on the enzymatic activity of AChE, the conditions for OPs detection were optimized by using methyl parathion as a model OP compound. The inhibition of methyl parathion was proportional to its concentration ranging from 0.005 to 0.12 and 0.5 to 4.5 μg mL-1. The detection limit was 2 ng mL-1. The developed biosensor exhibited good reproducibility and acceptable stability. This study provides a new promise tool for analysis of organophosphate pesticides. © 2008 Elsevier B.V. All rights reserved.
语种：
英文
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One-step fabrication of three-dimensional porous calcium carbonate–chitosan composite film as the immobilization matrix of acetylcholinesterase and its biosensing on pesticide
作者：
Gong, Jingming* ;Liu, Ting;Song, Dandan;Zhang, Xiaobo;Zhang, Lizhi
期刊：
Electrochemistry Communications ,2009年11(10):1873-1876 ISSN：1388-2481
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Zhang, Lizhi; Gong, Jingming; Zhang, Xiaobo; Liu, Ting] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Calcium carbonate;Acetylcholinesterase;Methyl parathion;Detection
摘要：
This work reports on a novel nanosized calcium carbonate–chitosan (nanoCaCO3–chi) composite film fabricated by a one-step co-electrodeposition method. The generated nanoCaCO3-based matrix possessed a three-dimensional (3D) porous, network-like structure, providing a favorable and biocompatible microenvironment to immobilize enzyme. By using such a composite film as enzyme immobilization matrix, a highly sensitive and stable acetylcholinesterase (AChE) sensor was achieved for determination of methyl parathion as a model of organophosphate pesticides (OPs) compounds. The inhibition of methyl parathion was proportional to its concentration ranging from 0.005–0.2 to 0.75–3.75 μg mL−1. The detection limit was found to be as low as 1 ng mL−1 (S/N = 3). The designed biosensor exhibited good reproducibility and acceptable stability.
语种：
英文
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Stripping voltammetric analysis of organophosphate pesticides using Ni/Al layered double hydroxides as solid-phase extraction
作者：
Gong, Jingming* ;Wang, Lianyi;Song, Dandan;Zhu, Xiaolei;Zhang, Lizhi
期刊：
Biosensors and Bioelectronics ,2009年25(2):493-496 ISSN：0956-5663
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Zhang, Lizhi; Gong, Jingming; Zhu, Xiaolei; Wang, Lianyi] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.;[Gong, Jingming] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Luyu Rd 152, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Luyu Rd 152, Wuhan 430079, Peoples R China.
关键词：
Stripping voltammetric analysis;Layered double hydroxides (LDHs);Solid-phase extraction (SPE);Methyl parathion;Biosensor
摘要：
A sensitive electrochemical stripping voltammetric biosensor is designed for organophosphate pesticides (OPs) based on solid-phase extraction (SPE) using Ni/Al layered double hydroxides (LDHs) modified glassy carbon electrode (labeled as Ni/Al-LDHs/GCE). The Ni/Al-LDHs as the host are highly efficient to capture OPs, which dramatically facilitates the enrichment of nitroaromatic OPs onto their surface and realizes the stripping voltammetric detection of OPs. The stripping voltammetric performances of methyl parathion (MP) intercalated into LDHs were evaluated by cyclic voltammetric and square-wave voltammetric (SWV) analysis. The combination of the host-guest supramolecular structure, SPE, and stripping voltammetry provides a fast, simple, and sensitive electrochemical method for detecting nitroaromatic OPs by using MP as a model. The stripping analysis is linear over the MP concentration ranges of 0.001-0.1 and 0.2-1.0 μg mL-1 with a detection limit of 0.6 ng mL-1 (S/N = 3). The developed biosensor exhibits good reproducibility and acceptable stability. This study offers a new promising protocol for OPs analysis. © 2009 Elsevier B.V. All rights reserved.
语种：
英文
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Self-assembled chitosan nanotemplates for biomineralization of controlled calcite nanoarchitectures
作者：
Gong, Jingming* ;Zhou, Zhengji;Hu, Xianluo;Wong, Man-keung;Wong, Ka-wai;...
期刊：
ACS Applied Materials & Interfaces ,2009年1(1):26-29 ISSN：1944-8244
通讯作者：
Gong, Jingming
作者机构：
[Hu, Xianluo; Gong, Jingming; Zhou, Zhengji; Wong, Ka-wai] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Gong, Jingming; Wong, Man-keung] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China.;[Zhou, Zhengji; Du, Zuliang] Henan Univ, Lab Special Funct Mat, Kaifeng 475001, Henan, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
chitosan;self-assembly;biomineralization;calcium carbonate
摘要：
Three-dimensional chitosan self-assembled nanostructures are reported whose morphology can be adjusted by tuning of the processing parameters, including the rate of solvent removal, the surface roughness of the substrate, and the polarity of the solvent used. Upon this, chitosan nanostructures of more interesting morphology and even higher complexity can be prepared, which can serve as nanotemplates for subsequent biomineralization of calcium carbonate, leading to controllable three-dimensional biominerals having the same complex morphology as that exhibited by the self-assembled chitosan nanotemplates. © 2008 American Chemical Society.
语种：
英文
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Simple co-electrodeposition of functionalized multi-walled carbon nanotubes/chitosan composite coating on mainspring for enhanced modulus of elasticity
作者：
Jia, F. L.;Gong, J. M.;Wong, K. W.* ;Du, R. X.
期刊：
Nanotechnology ,2009年20(1):015701- ISSN：0957-4484
通讯作者：
Wong, K. W.
作者机构：
[Du, R. X.; Wong, K. W.; Jia, F. L.] Chinese Univ Hong Kong, Inst Precis Engn, Shatin, Hong Kong, Peoples R China.;[Gong, J. M.; Jia, F. L.] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.;[Wong, K. W.] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China.
通讯机构：
[Wong, K. W.] C;Chinese Univ Hong Kong, Inst Precis Engn, Shatin, Hong Kong, Peoples R China.
摘要：
Co-electrodeposition of functionalized multi-walled carbon nanotubes (f-MWCNTs) with chitosan was performed on pieces of a stainless steel mainspring. Under moderate conditions, composite coatings with controllable thickness from a few hundred nanometers to tens of micrometers can be achieved. After coating an 8 μm composite layer on a piece of mainspring 120 μm thick (i.e. 6.7% increase in thickness), the Young's modulus of the mainspring was found to have increased by more than ∼25%. Moreover, the coated mainsprings possess much stronger mechanical strength as demonstrated by fatigue tests. The significant enhancement of Young's modulus and intrinsic strength are mostly attributed to the effect exerted by the subtle combination of chitosan and MWCNT. In the current study, the intensive cross-linkages formed between the -COOH groups in f-MWCNTs and the hydroxyl (-OH) and amino (-NH <inf>2</inf>) groups in chitosan were exploited. The chitosan molecular chains and f-MWCNTs both chemically react and physically knot with each other, leading to a three-dimensional interlaced f-MWCNT/chitosan composite coating. The reported co-electrodeposition provides a simple approach to form a stable, reproducible and rigid f-MWCNTs composite coating, which leads to the realization of a high-performance mainspring with reinforced mechanical strength. ©IOP Publishing Ltd.
语种：
英文
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基于Ni／Al插层水合物固相提取对有机磷农药高效电化学检测
作者：
王涟漪;龚静鸣
期刊：
分析化学 ,2009年37(A03):783 ISSN：0253-3820
作者机构：
华中师范大学农药与化学生物学教育部重点实验室,化学学院,武汉,430079
关键词：
电化学检测;有机磷农药;固相提取;水合物;农产品出口贸易;环境污染物;插层
摘要：
近年来，作为典型的环境污染物，农药残留污染问题由于涉及到环境保护治理、人民群众的食品安全和健康，以及我国农产品出口贸易，而受到人们的高度关注。发展快速、准确、现场的农药残留检测技术尤显重要。传统的农药残留定性和定量方法是色谱和色质联用技术等，结果准确可靠，但涉及到的仪器昂贵，前处理过程烦琐耗时，并不适合快速现场检测。
语种：
中文
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Continuous size tuning of monodisperse ZnO colloidal nanocrystal clusters by a microwave-polyol process and their application for humidity sensing
作者：
Hu, Xianluo* ;Gong, Jingming;Zhang, Lizhi;Yu, Jimmy C.
期刊：
Advanced Materials ,2008年20(24):4845-4850 ISSN：0935-9648
通讯作者：
Hu, Xianluo
作者机构：
[Hu, Xianluo; Zhang, Lizhi; Gong, Jingming] Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.;[Hu, Xianluo; Yu, Jimmy C.] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China.
通讯机构：
[Hu, Xianluo] C;Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.
关键词：
colloids;microwaves;nanocrystals;sensors;zinc oxide
摘要：
A study was conducted to demonstrate continuous size tuning of monodisperse zinc oxide (ZbO) colloidal nanocrystal clusters by a microwave-polyol process and their application for humidity sensing. It was demonstrated that the size of the clusters that are composed of small primary nanocrystals, can be tuned continuously and precisely for about 57-274mm. This can be done, by varying the the amount of Zn- complex precursors. Photoluminescence spectra indicated that the clusters, composed of nanocrystallites with a high surface-to-volume ratio, possess a high level of surface and subsurface oxygen vacancies. The results show that the sensors made of ZnO CNCs, exhibit high sensitivity for humidity measurement at room temperature. These sensors also have the potential for initiating nanoarchitecture-dependent performance in sensing and catalytic applications.
语种：
英文
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Chitosan nanostructures with controllable morphology produced by a nonaqueous electrochemical approach
作者：
Gong, Jingming;Hu, Xianluo;Wong, Ka-wai* ;Zheng, Zhi;Yang, Lin;...
期刊：
Advanced Materials ,2008年20(11):2111-2115 ISSN：0935-9648
通讯作者：
Wong, Ka-wai
作者机构：
[Hu, Xianluo; Gong, Jingming; Zheng, Zhi; Du, Ruxu; Wong, Ka-wai] Chinese Univ Hong Kong, Inst Precis Engn, Hong Kong, Hong Kong, Peoples R China.;[Hu, Xianluo; Gong, Jingming; Zheng, Zhi; Wong, Ka-wai] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.;[Gong, Jingming] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.;[Yang, Lin] Henan Normal Univ, Coll Chem & Environm Sci, Xinxiang 453007, Peoples R China.;[Lau, Woon-ming] Univ Western Ontario, London, ON N6A 5B7, Canada.
通讯机构：
[Wong, Ka-wai] C;Chinese Univ Hong Kong, Inst Precis Engn, Hong Kong, Hong Kong, Peoples R China.
关键词：
chitosan;nanowires
摘要：
A facile nonaqueous electrochemical method is reported for synthesis of single crystal chitosan nanostructures on a stainless steel substrate. The study carried out the synthesis without using any template, catalyst, or surfactant. The produced chitosan nanostructures can be used as a natural extracellular matrix due to their biocompatibility and biodegradability that can further be used to achieve controlled drug delivery and to develop tissue-compatible scaffolds. This method can be used to prepare single-crystal chitosan nanostructures by using an electrochemical process and provide large-scale industrial production of chitosan nanomaterials. It was observed during the study that the chitosan nanostructures can be grown by controlling the deposition time, electrochemical potential, and the electric current.
语种：
英文
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Bifunctional sensor of nitric oxide and oxygen based on hematite nanotubes embedded in chitosan matrix
作者：
Gong, Jingming* ;Wang, Lianyi;Zhao, Kun;Song, Dandan;Zhang, Lizhi
期刊：
Electrochemistry Communications ,2008年10(9):1222-1225 ISSN：1388-2481
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Zhang, Lizhi; Gong, Jingming; Wang, Lianyi; Zhao, Kun] Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.
关键词：
bifunctional sensor;hematite nanotubes;chitosan;nitric oxide;oxygen;DIRECT ELECTROCHEMISTRY;RELAXING FACTOR;RELEASE;ELECTRODE;FILM
摘要：
A novel hybrid bifunctional sensing platform for simultaneous determination of NO and 02 has been developed, whereby hematite nanotubes are immobilized into the chitosan matrix onto a gold electrode (labeled as HeNTs-Chi/Au). The HeNTs distributed in porous-structured chitosan matrix not only offer abundant active sites for bifunctional sensing of NO and 02, but also facilitate oxidation of NO and reduction of 02 dramatically. Straight calibration curves are achieved in analyte concentration ranges of 5.0 x 10(-8) to 1.25 x 10(-6) mol L-1 for NO and 2.5 x 10(-7) to 6.0 x 10(-6) mol L-1 for O-2. Also, the detection limits are low of 8.0 x 10(-9) mol L-1 for NO and 5.0 x 10(-8) mol L-1 for O-2. Such an efficient bifunctional sensor for NO and O-2 offers great potential in quantitation of NO levels in biological and medical systems, since NO level is highly regulated by various reactive oxygen species. (C) 2008 Elsevier B.V. All rights reserved.
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英文
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Deposition of Prussian blue on nanoporous gold film electrode and its electrocatalytic reduction of H2O2
作者：
Jia, Falong* ;Yu, Chuanfang;Gong, Jingming;Zhang, Lizhi
期刊：
Journal of Solid State Electrochemistry ,2008年12(12):1567-1571 ISSN：1432-8488
通讯作者：
Jia, Falong
作者机构：
[Zhang, Lizhi; Gong, Jingming; Yu, Chuanfang; Jia, Falong] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
通讯机构：
[Jia, Falong] C;Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
关键词：
Electrocatalytic activity;Electrodeposition;Nanoparticles;Nanoporous gold;Prussian blue
摘要：
Prussian blue-modified nanoporous gold film (PB-NPGF) electrode was fabricated in this study. The fabrication was realized through electrodeposition of Prussian blue nanoparticles on the skeleton of a nanoporous gold film electrode without destroying the porous structure of NPGF electrode. The resulting PB-NPGF composite electrode showed very high electrocatalytic activity, repeatability, and stability to the reduction of H<inf>2</inf>O <inf>2</inf>. For instance, its activity was about twenty times that of the PB-modified polished gold electrode. More importantly, the sensitivity of the PB-NPGF composite electrode reaches as high as 10.6 μA μM<sup>-1</sup> cm<sup>-2</sup>. This PB-NPGF composite electrode is very promising in the fields of catalysis, analysis, and so on. ©2008 Springer-Verlag.
语种：
英文
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One-step fabrication of chitosan–hematite nanotubes composite film and its biosensing for hydrogen peroxide
作者：
Gong, Jingming* ;Wang, Lianyi;Zhao, Kun;Song, Dandan
期刊：
Electrochemistry Communications ,2008年10(1):123-126 ISSN：1388-2481
通讯作者：
Gong, Jingming
作者机构：
[Song, Dandan; Gong, Jingming; Wang, Lianyi; Zhao, Kun] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.
通讯机构：
[Gong, Jingming] C;Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.
关键词：
hematite nanotubes;chitosan;hydrogen peroxide;one-step electrodeposition;biosensing;PRUSSIAN-BLUE;DIRECT ELECTROCHEMISTRY;ALPHA-FE2O3 NANOTUBES;ELECTRODE SURFACE;COMPLEX MEMBRANE;H2O2 DETECTION;SENSOR;GLUCOSE;OXIDE;MATRIX
摘要：
This work reports on a novel chitosan-hematite nanotubes composite film on a gold foil by a simple one-step electrodeposition method. The hybrid chitosan-hematite nanotubes (Chi-HeNTs) film exhibits strong electrocatalytic reduction activity for H2O2. Interestingly, two electrocatalytic reduction peaks are observed at -0.24 and -0.56 V (vs SCE), respectively, one controlled by surface wave and the other controlled by diffusion process. The Chi-HeNTs/Au electrode shows a linear response to H2O2 concentration ranging from 1 x 10(-6) to 1.6 x 10(-5) mol L-1 with a detection limit of 5 x 10(-8) mol L-1 and a sensitivity as high as 1859 mu A mu M-1 cm(-2). (C) 2007 Elsevier B.V. All rights reserved.
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英文
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