1
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Xu X, Lu S, Zhang Z. Hydrogel/MOF Dual-Modified Photoelectrochemical Biosensor for Antibiofouling and Biocompatible Dopamine Detection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10718-10725. [PMID: 38728259 DOI: 10.1021/acs.langmuir.4c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
For accurate in vivo detection, nonspecific adsorption of biomacromolecules such as proteins and cells is a severe issue. The adsorption leads to electrode passivation, significantly compromising both the sensitivity and precision of sensing. Meanwhile, common antibiofouling modifications, such as polymer coatings, still grapple with issues related to biocompatibility, electrode passivation, and miniaturization. Herein, we propose a composite antibiofouling coating strategy based on zwitterionic metal-organic frameworks (Z-MOFs) and a combination of acrylamide hydrogels. On a well-designed TiO2/Z-MOF/hydrogel photoelectrode, we achieve highly sensitive and selective detection of dopamine in complex biological environments. The hydrogel's three-dimensional porous structure combined with unique microporous architecture of Z-MOF ensures effective sieving of interfering macromolecules while preserving efficient small molecules and electron transport. This innovative approach paves the way for constructing miniature, in vivo antibiofouling sensors for molecule monitoring in living organisms with complicated chemical environments.
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Affiliation(s)
- Xiankui Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Shen Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
- State Key Laboratory of Petroleum Molecular and Process Engineering, SKLPMPE, Sinopec Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China
- East China Normal University, Shanghai200062, China
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2
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Xin C, Cheng Y, Wang J, Sun Q, Liu E, Hu X, Miao H. Hole Storage Interfacial Regulation of Sb 2Se 3 Photocathode with Significantly Enhanced Photoelectrochemical Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:627-637. [PMID: 36575821 DOI: 10.1021/acs.langmuir.2c02999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Although interfacial engineering materials for antimony selenide (Sb2Se3) photocathodes have been intensively studied, most of the previous research has focused on the development of photogenerated electron transfer promoters. In this work, Sb2Se3 photocathodes are innovatively modified by using ferrihydrite (Fh), which has been widely used as a hole storage layer in photoanodes. After modifying Fh, the photocurrent density of the Sb2Se3 photocathode was increased from -0.27 to -1.6 mA cm-2 at 0 VRHE with the onset potential positive shift about 150 mV, and an impressive injection efficiency of 83.84% was achieved. The major contribution of Fh to the photoelectrochemical (PEC) performance enhancement was demonstrated by various characterization studies. The results show that the enhancement performance of PEC is largely attributed to the capture of back-migrating holes by Fh, the reduction of interfacial charge transfer resistance, and the significant increase in electrochemical active surface area (ECSA). This work presents new insights into the application of hole storage layers in Sb2Se3-based photocathodes.
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Affiliation(s)
- Chang Xin
- School of Physics, Northwest University, Xi'an710069, P.R. China
| | - Yufei Cheng
- School of Physics, Northwest University, Xi'an710069, P.R. China
| | - Jiawei Wang
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an710049, P.R. China
| | - Qian Sun
- School of Physics, Northwest University, Xi'an710069, P.R. China
| | - Enzhou Liu
- School of Chemical Engineering, Northwest University, Xi'an710069, P.R. China
| | - Xiaoyun Hu
- School of Physics, Northwest University, Xi'an710069, P.R. China
| | - Hui Miao
- School of Physics, Northwest University, Xi'an710069, P.R. China
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3
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Non-noble metal Bi/BiVO4 photoanode for surface plasmon resonance-induced photoelectrochemical biosensor of hydrogen peroxide detection. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05166-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Dashtian K, Shahbazi S, Tayebi M, Masoumi Z. A review on metal-organic frameworks photoelectrochemistry: A headlight for future applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214097] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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5
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6
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Zhang S, Feng L, Li P, Zhang L, Chen X, Chu S, Gao Y, Xie S, Jiang J, Wang H. In situ creation of ZnO@CdS nanoflowers on ITO electrodes for sensitive photoelectrochemical detection of copper ions in blood. J Mater Chem B 2021; 9:5869-5876. [PMID: 34259308 DOI: 10.1039/d1tb00989c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly selective and sensitive photoelectrochemical (PEC) detection method has been developed for the analysis of copper (Cu2+) ions using nanoflower-like ZnO@CdS heterojunctions, of which ZnO was first in situ grown onto the indium tin oxide electrodes by a hydrothermal method and then coated with CdS through the chemical bath deposition route. It was discovered that the ZnO@CdS heterojunction so formed could serve as a photosensitive catalyst with improved charge separation for visible-light-driven PEC responses. Enhanced visible-light harvesting of nanocomposites could also be expected with CdS as the visible-light sensitizer. Furthermore, the introduction of Cu2+ ions could cause a rational decrease in the photocurrents of nanocomposites through the specific interaction between CdS and Cu2+ ions. A ZnO@CdS heterojunction-based PEC sensor was thereby developed for the detection of Cu2+ ions in blood in the linear concentrations ranging from 0.50 to 80 nM, with a limit of detection of 0.18 nM. Such a heterojunction-based PEC detection platform constructed using two photocatalytic materials with matched band structures are promising for a wide range of applications for sensing Cu2+ ions in clinical diagnostics, food monitoring, and environmental analysis.
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Affiliation(s)
- Sheng Zhang
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Luping Feng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, P. R. China
| | - Pan Li
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Lixiang Zhang
- School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, P. R. China
| | - Xi Chen
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, P. R. China
| | - Su Chu
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Yuan Gao
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Shujing Xie
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Jiatian Jiang
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Hua Wang
- College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China and School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, P. R. China and School of Life Sciences, Huzhou University, Huzhou City, Zhejiang Province 313000, P. R. China.
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7
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Sun HH, He F, Wang T, Yin BC, Ye BC. A Cas12a-mediated cascade amplification method for microRNA detection. Analyst 2020; 145:5547-5552. [PMID: 32609115 DOI: 10.1039/d0an00370k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
MicroRNAs (miRNAs) play a vital role in various biological processes and act as important biomarkers for clinical cancer diagnosis, prognosis, and therapy. Here, we took advantage of Cas12a trans-cleavage activity to develop an enzyme-assisted cascade amplification method for isothermal miRNA detection. A target miRNA-initiated ligation reaction would allow for the production of transcription templates that triggered the transcriptional amplification of RNA strands. These RNA strands were cleaved by the 8-17E DNAzyme to generate crRNAs and recycled RNAs which have the same sequence as the target miRNA. The amplified abundant crRNAs bound to Cas12a and dsDNA activators to form the complex, which trans-cleaved the ssDNA reporters to generate a fluorescence signal for miRNA quantitative analysis. The proposed method exhibits a femtomolar limit of detection and a good specificity in distinguishing the homologous sequences of miRNAs. Its practical application ability was further tested in different cell lines.
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Affiliation(s)
- Huan-Huan Sun
- Laboratory of Biosystem and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Li H, Guo C, Liu C, Ge L, Li F. Laser-induced graphene hybrid photoelectrode for enhanced photoelectrochemical detection of glucose. Analyst 2020; 145:4041-4049. [PMID: 32367085 DOI: 10.1039/d0an00252f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The combination of an electrocatalyst with a semiconductor light absorber is of great importance to increase the efficiency of photoelectrochemical (PEC) glucose detection. Here, in situ and synchronous fabrication of a Ni-based electrocatalyst (NiEC) and CdS semiconductor in laser-induced graphene (LIG) on indium-tin oxide glass is demonstrated via a one-step laser-induced solid phase transition. A series of component and structural characterization experiments suggest that the laser-induced NiEC uniformly disperses in the hybrid nanocomposite and exists mainly in the Ni0 and NiO states. Moreover, both electrochemical and PEC investigations confirm that the as-prepared hybrid photoelectrode exhibits excellent photoelectrocatalytic ability towards glucose, which is not only attributed to the strong synergistic interaction between CdS and NiEC, but also benefited from the high conductivity as well as 3D macroporous configuration of the simultaneously formed LIG, providing the key factor to achieve sensitive non-enzymatic PEC glucose sensors. Therefore, the laser-induced hybrid photoelectrode is then applied to the PEC detection of glucose, and a low detection limit of 0.4 μM is obtained with good stability, reproducibility, and selectivity. This study provides a promising paradigm for the facile and binder-free fabrication of an electrocatalyst-semiconductor-graphene hybrid photoelectrode, which will find potential applications in sensitive PEC biosensing for a broad range of analytes.
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Affiliation(s)
- Hui Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
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9
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Zhao Y, Wu W, Fu B, Gan L, Zhang Z. Rationally Design of Near Infrared Light Responsive Micro‐Photoelectrodes for
In Vivo
Sensing of Neurotransmitter Molecules in Mouse Brain
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yina Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 500 Dongchuan Road Shanghai 200241 China
| | - Wenlong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 500 Dongchuan Road Shanghai 200241 China
| | - Baihe Fu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 500 Dongchuan Road Shanghai 200241 China
| | - Liyong Gan
- Institute for Structure and Function and Department of PhysicsChongqing University Chongqing 400030 China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University 500 Dongchuan Road Shanghai 200241 China
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10
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Ren J, Zong H, Sun Y, Gong S, Feng Y, Wang Z, Hu L, Yu K, Zhu Z. 2D organ-like molybdenum carbide (MXene) coupled with MoS2 nanoflowers enhances the catalytic activity in the hydrogen evolution reaction. CrystEngComm 2020. [DOI: 10.1039/c9ce01777a] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Our work introduces an emerging route for the synthesis of MoS2 nanoflowers decorating organ-like Mo2CTx MXene. This effective synthesis strategy of MoS2@Mo2CTx nanohybrid structure can shed some light on energy-related applications.
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Affiliation(s)
- Jie Ren
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Hui Zong
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Yuyun Sun
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Shijing Gong
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Yu Feng
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Zhenguo Wang
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Le Hu
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Ke Yu
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
| | - Ziqiang Zhu
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- East China Normal University
- Shanghai 200241
- China
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11
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Fu B, Zhang Z. Rationally Engineered Photonic-Plasmonic Synergistic Resonators in Second Near-Infrared Window for in Vivo Photoelectrochemical Biodetection. NANO LETTERS 2019; 19:9069-9074. [PMID: 31765171 DOI: 10.1021/acs.nanolett.9b04172] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The introduction of photonic technologies into biodetection fields is in high demand to accelerate understanding vital movements at the molecular level. Great difficulty lies in the fact that the short penetration of photons in biotissues limits the practical applications of in vivo biodetection. Herein, we overcome this long-standing technical challenge through first introducing a new synergistic photonic-plasmonic resonator in second near-infrared window to realize efficient light trapping in this "bio-transparent zone". The well-match of photonic and plasmonic resonances in the same wavelength significantly increases the light-matter interplay activity, with 60% increase of quality factors, thus allowing us to pioneeringly implement the sensitive photoelectrochemical in vivo biodetection of macrophage cells in the tail vein of a living mouse. These synergistic photonic-plasmonic resonators promise bridges between vital photonic phenomena and practical biodetections or clinical applications.
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Affiliation(s)
- Baihe Fu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
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12
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Fu B, Wu W, Gan L, Zhang Z. Bulk/Surface Defects Engineered TiO 2 Nanotube Photonic Crystals Coupled with Plasmonic Gold Nanoparticles for Effective in Vivo Near-Infrared Light Photoelectrochemical Detection. Anal Chem 2019; 91:14611-14617. [PMID: 31660734 DOI: 10.1021/acs.analchem.9b03733] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Photoelectrochemical (PEC) techniques are of fundamental and practical importance, and they have been widely used for solar energy conversion and experimental protection. Besides these important applications, an emerging and fast developing PEC application of PEC bioanalysis is receiving more attention from both academic and clinic communities. However, the typical PEC biosensing is still limited under illumination of ultraviolet and visible (UV/vis) light, which hampers its in vivo detection in deep tissues. Expanding the optical absorption wavelength of photoelectrodes from the UV/vis light region into the near-infrared (NIR) light region is highly desirable due to its deep tissue penetrability and minimal invasiveness for organisms, but the exploration of a facile strategy to implement efficient NIR absorption with biocompatible materials is still a big challenge. Herein, under the guidance of theorical calculations, we propose a strategy through modulation of bulk/surface defects and decoration of Au nanoparticles on TiO2 nanotube photonic crystals to implement efficient NIR response and thus successfully realize sensitive and selective PEC detection of antibiotics in real bio- and experimental-samples under NIR illumination. In addition, we first implement the in vivo PEC detection under illumination of NIR light. We have faith that this new NIR photoelectric responsive strategy will provide a broad platform for detection of life-related biomolecules in deep tissues or even in vivo for real-time measurement and shed light on the intrinsic connections between biomarkers and clinical diseases.
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Affiliation(s)
- Baihe Fu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Wenlong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Liyong Gan
- Institute for Structure and Function and Department of Physics , Chongqing University , Chongqing 400030 , China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
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13
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Guo L, Yin H, Xu M, Zheng Z, Fang X, Chong R, Zhou Y, Xu L, Xu Q, Li J, Li H. In Situ Generated Plasmonic Silver Nanoparticle-Sensitized Amorphous Titanium Dioxide for Ultrasensitive Photoelectrochemical Sensing of Formaldehyde. ACS Sens 2019; 4:2724-2729. [PMID: 31564103 DOI: 10.1021/acssensors.9b01204] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Trace concentration of formaldehyde can damage human health and environment. Consequently, it is of great significance to develop an ultrasensitive sensor for its determination. Herein, an ingenious and efficient photoelectrochemical sensor for formaldehyde was constructed by amorphous TiO2 hollow spheres incorporated with Ag+ ions, which were brought about by silica template etching and then the exchange of Ag+/Na+ ions. The amorphous TiO2 acted the dual role of Ag+ ion probe carriers and photoelectric materials. Upon exposure to the increased concentration of formaldehyde, the Ag nanoparticles were produced in situ, and photocurrent amplification was then achieved in a proportional manner. It is attributed to the injection of hot electrons from plasmonic Ag nanoparticles into the conduction band of amorphous titanium dioxide and therefore enhanced the photocurrent. The linear relationship between 1 and 400 pmol L-1 resulted from the enhanced photocurrent and increased concentration of formaldehyde, and the detection limit was 0.4 pmol L-1. Benefiting from an in situ and unique sensitization strategy, this photoelectrochemical sensor exhibited many advantages such as sensitivity, selectivity, cost-effectiveness, convenience of fabrication, low power consumption, and stability.
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Affiliation(s)
- Lei Guo
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Hui Yin
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Minglan Xu
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Zhaoting Zheng
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Xiaohu Fang
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Ran Chong
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Yuanyuan Zhou
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Lingqiu Xu
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Qin Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China
| | - Jing Li
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Hongbo Li
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
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14
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Tao BX, Li XL, Ye C, Zhang Q, Deng YH, Han L, Li LJ, Luo HQ, Li NB. One-step hydrothermal synthesis of cobalt-vanadium based nanocomposites as bifunctional catalysts for overall water splitting. NANOSCALE 2019; 11:18238-18245. [PMID: 31565714 DOI: 10.1039/c9nr03628h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Designing low-cost and high-active bifunctional catalysts for overall water splitting has attracted increasing research interest. Herein, the brilliant overall water splitting performance of cobalt-vanadium bimetal-based nanocomposites is explored. Co-V based nanocomposites are synthesized through a one-step hydrothermal method, in which the cobalt species is introduced into the lepidocrocite VOOH and further cobalt vanadium oxide is formed. The additive level of cobalt is optimized and the corresponding effect on electrocatalytic activity is also investigated in this work, systematically. The targeted catalyst (denoted as Co0.2-VOOH) exhibits a unique sheet-like morphology, resulting in the high exposure of catalytically active sites. When used as the bifunctional catalyst, Co0.2-VOOH can achieve a current density of 10 mA cm-2 at the overpotentials of 210 mV for water oxidation and 130 mV for hydrogen generation, respectively. Notably, it only requires low cell voltages of 1.57 and 1.74 V to drive the catalytic current densities of 10 and 100 mA cm-2 during the water splitting process. This work significantly indicates that cobalt-vanadium based materials are promising alternatives for overall water splitting.
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Affiliation(s)
- Bai Xiang Tao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China.
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15
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Li Z, Zhou X, Yang J, Fu B, Zhang Z. Near-Infrared-Responsive Photoelectrochemical Aptasensing Platform Based on Plasmonic Nanoparticle-Decorated Two-Dimensional Photonic Crystals. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21417-21423. [PMID: 31140775 DOI: 10.1021/acsami.9b07128] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The photoelectrochemical (PEC) analysis is an emerging and fast developing biosensing technique. However, the in vivo PEC biosensing in deep tissue is seriously hampered because of the shallow penetration depth of ultraviolet and visible light. Expanding the optical absorption wavelength of photoelectrodes from the visible light region into the near-infrared (NIR) light region is highly desirable because of its deep tissue penetrability and minimal invasiveness for organisms, but the exploration of the facile strategy to implement efficient NIR absorption with good biocompatibility is still challenging. Herein, a NIR PEC aptasensor is proposed by coupling plasmonic nanoparticles (NPs) into periodic two-dimensional nanocavity (NC) photonic crystals as photoelectrodes, where the Au NPs are sputtered on a periodic two-dimensional TiO2 NC photonic crystal substrate to significantly enhance the NIR PEC response and successfully achieve sensitive PEC detection of Hg2+ under irradiation of NIR light in blood. We believe that the proposed NIR-responsive Au/TiO2 NC-based PEC aptasensor will open a new in vivo biosensing model for a series of important biomolecules and pave up an avenue for the practical applications of PEC biosensing in deep tissue or even in organs and brain of the living body.
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Affiliation(s)
- Zhenzhen Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Xue Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Jing Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Baihe Fu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
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16
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Wu D, Zhang Z. Synergistic bio-recognition/spatial-confinement for effective capture and sensitive photoelectrochemical detection of MCF-7 cells. Chem Commun (Camb) 2019; 55:14514-14517. [DOI: 10.1039/c9cc08521a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A synergistic bio-recognition/spatial-confinement strategy is proposed for the effective capture of cancer cells and sensitive photoelectrochemical detection with the lowest limit of detection of 2 cells per mL.
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Affiliation(s)
- Dan Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Zhonghai Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
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17
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Da H, Liu Y, Li M, Yuan R, Liu H, Chai Y. A highly sensitive photoelectrochemical VEGF165 biosensor with a dual signal amplification strategy by using AgVO3 as a photoactive material. Chem Commun (Camb) 2019; 55:8076-8078. [DOI: 10.1039/c9cc04049h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We developed a novel “signal-on” photoelectrochemical (PEC) aptasensor with a near-zero background signal by using AgVO3 as a single photoactive material for the sensitive detection of vascular endothelial growth factor (VEGF165).
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Affiliation(s)
- Huimei Da
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaling Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Mengjie Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Hongyan Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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18
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Zhang N, Shi XM, Guo HQ, Zhao XZ, Zhao WW, Xu JJ, Chen HY. Gold Nanoparticle Couples with Entropy-Driven Toehold-Mediated DNA Strand Displacement Reaction on Magnetic Beads: Toward Ultrasensitive Energy-Transfer-Based Photoelectrochemical Detection of miRNA-141 in Real Blood Sample. Anal Chem 2018; 90:11892-11898. [PMID: 30229657 DOI: 10.1021/acs.analchem.8b01966] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Highly stable circulating microRNAs (miRNAs) are currently recognized as a novel potential biomarker for clinical cancer diagnosis in the early stage. However, limited by its low concentration, high sequence similarity, as well as the numerous interferences in body fluids, detection of miRNA in whole blood with sufficient selectivity and sensitivity is still challenging. Herein, we reported the integration of entropy-driven toehold-mediated DNA strand displacement (ETSD) reaction with magnetic beads (MB) toward the energy-transfer-based photoelectrochemical (PEC) detection of the prostate carcinoma (PCa) biomarker miRNA-141 in a real blood sample. In this protocol, the ETSD reaction was divided into two steps, and cooperated with magnetic separation, target extraction and amplification could be realized in a single test and ultrasensitive detection of miRNA-141 could be achieved in undiluted whole blood sample. This work proposed a new solution for sensitive biomolecular detection in a complex biological milieu and exhibited great promise for future clinical cancer diagnosis.
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Affiliation(s)
- Nan Zhang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Xiao-Mei Shi
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Hong-Qian Guo
- Department of Urology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology , Nanjing University , Nanjing 210008 , China
| | - Xiao-Zhi Zhao
- Department of Urology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology , Nanjing University , Nanjing 210008 , China
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China.,Department of Materials Science and Engineering , Stanford University , Stanford , California 94305 , United States
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
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19
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Tu W, Wang Z, Dai Z. Selective photoelectrochemical architectures for biosensing: Design, mechanism and responsibility. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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