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Wang G, Guo J, Zou J, Lei Z. CeO 2 nanocages with tetra-enzyme mimetic activities for dual-channel ratiometric colorimetric detection of microcystins-LR. Anal Chim Acta 2024; 1306:342599. [PMID: 38692792 DOI: 10.1016/j.aca.2024.342599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/08/2024] [Accepted: 04/11/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND Microcystin-leucine-arginine (MC-LR) produced by various cyanobacteria during harmful algal bloom poses serious threats to drinking water safety and human health. Conventional chromatography-based detection methods require expensive instruments and complicated sample pretreatment, limiting their application for on-site detection. Colorimetric aptasensors are simple and rapid, and are amenable to fast detection. However, they provide only one output signal, resulting in poor sensitivity and accuracy. Dual-channel ratiometric colorimetric method based on the peroxidase-like activity of nanozyme can achieve self-calibration by recording two reverse signals, providing significantly enhanced sensitivity and accuracy. RESULTS CeO2 nanocages (CeO2 NCs) with tetra-enzyme mimetic activities (oxidase-, peroxidase-, catalase- and superoxide dismutase-like activities) were facilely synthesized using zeolitic imidazolate framework-67 (ZIF-67) as sacrificial template. The peroxidase-like activity of CeO2 NCs can be regulated by DNA, and it showed opposite response to two chromogenic substrates (2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) and 3,3',5,5'-tetramethylbenzidine (TMB)), which was mainly attributed to the changed affinity. On the basis of MC-LR aptamer-tunable peroxidase-like activity of CeO2 NCs in TMB and ABTS channel, a dual-channel ratiometric colorimetric aptasensor was constructed for detection of MC-LR. Compared with conventional single-signal colorimetric assays, the proposed method showed lower limit of detection (0.66 pg mL-1) and significantly enhanced sensitivity. Moreover, the practicability of the ratiometric colorimetric assay was demonstrated by detecting MC-LR in real water samples, and satisfactory recoveries (94.9-101.9 %) and low relative standard deviations (1.6-6.3 %) were obtained. SIGNIFICANCE This work presents a nanozyme-based ratiometric colorimetric aptasensor for MC-LR detection by recording the reverse responses of two chromogenic reactions. Benefiting from the self-calibration function, the method can achieve higher sensitivity and accuracy. The short detection time and practical application in real water samples show great potential for environmental monitoring.
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Affiliation(s)
- Guodong Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - Jingfang Guo
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - Jing Zou
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - Zhen Lei
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China.
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Baye AF, Abebe MW, Kim H. Boron-Nitrogen-Edged Biomass-Derived Carbon: A Multifunctional Approach for Colorimetric Detection of H 2O 2, Flame Retardancy, and Triboelectric Nanogenerator. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402449. [PMID: 38804870 DOI: 10.1002/smll.202402449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/14/2024] [Indexed: 05/29/2024]
Abstract
Enhancing the concentration and type of nitrogen (N) dopants within the Sp2-carbon domain of carbon recycled from biomass sources is an efficient approach to mimic CNT, GO, and rGO to activate oxidants such as H2O2, excluding toxic chemicals and limiting reaction steps. However, monitoring the kind and concentration of N species in the Sp2-C domain is unlikely with thermal treatments only. A high temperature for graphitization reduces N moieties, leading to low electron density. This inhibits H2O2 adsorption and activation on catalyst surfaces. In this study, coffee waste (CW) is converted into B, N-doped biochar (BXNbY) using boric acid-assisted pyrolysis (H3BO3 mass = X and carbonization temperature = Y) under N2 to overcome the challenge. The B dopant regulates the concentration and type of N, provides Lewis's acid sites, and converts graphitic-N to pyridine-N in BXNbY. The optimized B3Nb900 exhibits excellent colorimetric sensing performance toward H2O2 with a low detection limit (36.9 nM) and high selectivity in the presence of many interferences and milk samples due to high pyridinic-N and Sp2 domain sizes. Interestingly, B enhances other properties of N-containing CW-derived carbon and introduces self-extinguishing and tribopositive properties. Hence, BXNbY-coated polyurethane foam shows excellent flame retardancy and energy harvesting performance.
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Affiliation(s)
- Anteneh F Baye
- Department of Energy Science and Technology, Environmental Waste Recycle Institute, Myongji University, Yongin, Gyeonggi-do, 17058, Republic of Korea
| | - Medhen W Abebe
- Department of Energy Science and Technology, Environmental Waste Recycle Institute, Myongji University, Yongin, Gyeonggi-do, 17058, Republic of Korea
| | - Hern Kim
- Department of Energy Science and Technology, Environmental Waste Recycle Institute, Myongji University, Yongin, Gyeonggi-do, 17058, Republic of Korea
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Fan H, Zhang R, Fan K, Gao L, Yan X. Exploring the Specificity of Nanozymes. ACS NANO 2024; 18:2533-2540. [PMID: 38215476 DOI: 10.1021/acsnano.3c07680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
Nanozymes, nanomaterials exhibiting enzyme-like activities, have emerged as a prominent interdisciplinary field over the past decade. To date, over 1200 different nanomaterials have been identified as nanozymes, covering four catalytic categories: oxidoreductases, hydrolases, isomerases, and lyases. Catalytic activity and specificity are two pivotal benchmarks for evaluating enzymatic performance. Despite substantial progress being made in quantifying and optimizing the catalytic activity of nanozymes, there is still a lack of in-depth research on the catalytic specificity of nanozymes, preventing the formation of consensual knowledge and impeding a more refined and systematic classification of nanozymes. Recently, debates have emerged regarding whether nanozymes could possess catalytic specificity similar to that of enzymes. This Perspective discusses the specificity of nanozymes by referring to the catalytic specificity of enzymes, highlights the specificity gap between nanozymes and enzymes, and concludes by offering our perspective on future research on the specificity of nanozymes.
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Affiliation(s)
- Huizhen Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ruofei Zhang
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Kelong Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Nanozyme Laboratory in Zhongyuan, Zhengzhou, Henan 451163, China
- University of Chinese Academy of Sciences, Beijing 101408, China
| | - Lizeng Gao
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Nanozyme Laboratory in Zhongyuan, Zhengzhou, Henan 451163, China
| | - Xiyun Yan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules (CAS), CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Nanozyme Laboratory in Zhongyuan, Zhengzhou, Henan 451163, China
- University of Chinese Academy of Sciences, Beijing 101408, China
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4
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Singh S, Mukherjee TK. Coacervate-Based Plexcitonic Assembly toward Peroxidase-like Activity and Ultrasensitive Glucose Sensing. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37200240 DOI: 10.1021/acsami.3c02863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Inbuilt catalytic centers anchored inside the confined architecture of artificial nanoreactors have gained tremendous attention owing to their vast applicability in various catalytic transformations. However, designing homogeneously distributed catalytic units with exposed surfaces in confined environment is a challenging task. Here, we have utilized quantum dot (QD)-embedded coacervate droplets (QD-Ds) as a confined compartment for the in situ synthesis of gold nanoparticles (Au NPs) without any additional reducing agent. High-resolution transmission electron microscopy images reveal homogeneous distribution of 5.6 ± 0.2 nm-sized Au NPs inside the QD-Ds (Au@QD-Ds). The in situ synthesized Au NPs are found to be stable over a period of 28 days without any agglomeration. Control experiments reveal that the free surface carboxylic acid groups of embedded QDs simultaneously act as reducing and stabilizing agents for Au NPs. Notably, these Au@QD-Ds exhibit superior peroxidase-like activity compared to bulk aqueous Au NPs and Au@QDs under similar experimental conditions. The observed peroxidase-like activity follows the classical Michaelis-Menten model inside the Au@QD-Ds via the fast electron-transfer pathway. The enhanced peroxidase-like activity has been explained by considering confinement, mass action, and the ligand-free surface of embedded Au NPs. The present plexcitonic nanocomposites exhibit excellent recyclability over several consecutive cycles without any compromise in their catalytic activity. Finally, a cascade reaction with glucose oxidase (GOx)-loaded Au@QD-Ds have been utilized for colorimetric detection of glucose with a limit of detection of 272 nM in solution as well as on filter paper. The present work highlights a facile and robust methodology for the fabrication of optically active functional hybrid plexcitonic assemblies and may find importance in various fields including bioanalytical chemistry and optoelectronics.
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Affiliation(s)
- Shivendra Singh
- Department of Chemistry, Indian Institute of Technology (IIT) Indore, Simrol, Indore 453552, M.P., India
| | - Tushar Kanti Mukherjee
- Department of Chemistry, Indian Institute of Technology (IIT) Indore, Simrol, Indore 453552, M.P., India
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Chi Z, Wang Q, Gu J. Recent advances in colorimetric sensors based on nanozymes with peroxidase-like activity. Analyst 2023; 148:487-506. [PMID: 36484756 DOI: 10.1039/d2an01850k] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Nanozymes have been widely used to construct colorimetric sensors due to their advantages of cost-effectiveness, high stability, good biocompatibility, and ease of modification. The emergence of nanozymes greatly enhanced the detection sensitivity and stability of the colorimetric sensing platform. Recent significant research has focused on designing various sensors based on nanozymes with peroxidase-like activity for colorimetric analysis. However, with the deepening of research, nanozymes with peroxidase-like activity has also exposed some problems, such as weak affinity and low catalytic activity. In view of the above issues, existing investigations have shown that the catalytic properties of nanozymes can be improved by adding surface modification and changing the structure of nanomaterials. In this review, we summarize the recent trends and advances of colorimetric sensors based on several typical nanozymes with peroxidase-like activities, including noble metals, metal oxides, metal sulfides/metal selenides, and carbon and metal-organic frameworks (MOF). Finally, the current challenges and prospects of colorimetric sensors based on nanozymes with peroxidase-like activity are summarized and discussed to provide a reference for researchers in related fields.
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Affiliation(s)
- Zhongmei Chi
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
| | - Qiong Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
| | - Jiali Gu
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
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Guo J, Liu Y, Mu Z, Wu S, Wang J, Yang Y, Zhao M, Wang Y. Label-free fluorescence detection of hydrogen peroxide and glucose based on the Ni-MOF nanozyme-induced self-ligand emission. Mikrochim Acta 2022; 189:219. [PMID: 35578119 DOI: 10.1007/s00604-022-05313-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 04/19/2022] [Indexed: 11/25/2022]
Abstract
A bifunctional Ni-MOF nanosheet was synthesized and developed for label-free fluorescent detection of H2O2 and glucose. The Ni-MOF exhibited intrinsic peroxidase-like activity and its catalytic activity was demonstrated to be originated from the hydroxyl radicals (•OH) produced in catalytic process. Since the generated •OH enabled terephthalic acid, the non-fluorescent organic ligand of Ni-MOF, to form a strongly fluorescent 2-hydroxy terephthalic acid, the Ni-MOF nanozyme was endowed with dual-function properties of mimicking peroxidase and emitting fluorescence. Based on this bifunctional Ni-MOF nanozyme, the proposed label-free fluorescence sensing strategy was applied to detecting H2O2 and glucose with wide linear ranges of 0.1-20 mM and 8-30 μM, and low detection limits of 4.0 × 10-5 M and 4.0 × 10-6 M, respectively. Furthermore, the bifunctional Ni-MOF-based label-free sensing platform was successfully used for the glucose detection in human serum samples, showing good reproducibility and high accuracy. This strategy provides a green and sensitive method for the determination of small biomolecules in practical applications by the combination of enzyme cascade reaction.
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Affiliation(s)
- Jingjing Guo
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.,Key Laboratory of Nanobiotechnology of Hebei Province, Yanshan University, Qinhuangdao, 066004, China
| | - Yangyang Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Zhao Mu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Shu Wu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Jueyu Wang
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Yue Yang
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Min Zhao
- College of Life Science, Northeast Forestry University, Harbin, 150040, China
| | - Yan Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
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7
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Yang W, Song H, Su Y, Sun M, Lv Y. K + Ion-Doped Mixed Carbon Nitride: A Daylight-Driven Photocatalyst and Luminophore for Enhanced Chemiluminescence. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5478-5486. [PMID: 35067047 DOI: 10.1021/acsami.1c23410] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photocatalytic production of reactive oxygen species from O2 at the interface of the photocatalyst is significant to convert luminous energy like daylight into chemical energy and could be momentous for a reactive oxygen species-based chemiluminescence system. Herein, we synthesized a novel K+ ion-doped tri-s-triazine/triazine mixed carbon nitride (MCN), in which K+ ions were intercalated into the layers in a bridging manner. After a mild daylight treatment for 30 min, the MCN suspension could produce long-lifetime reactive oxygen species and further directly produce intense and stable chemiluminescence emission in the presence of luminol. In particular, the chemiluminescence intensity was 780 times that of H2O2-luminol, and MCN could be recycled several times in the chemiluminescence system. The mechanism results revealed a large number of reactive oxygen species that were generated from O2 on the surface of MCN through a temperate photocatalytic process. In the theoretical calculation, the charge density of N interacting with K+ ions was significantly more negative than that at the corresponding position in graphitic carbon nitride, which was beneficial to the adsorption and activation of oxygen, and the narrower band gap suggested that the doping of K+ ions was conducive to the intramolecular charge transfer interaction. Then, the long-lifetime reactive oxygen species triggered the conversion of luminol into an excited-state intermediate, which further transferred energy to MCN, producing strong chemiluminescence emission. The K+ ion-doped MCN might conduct as an efficient photocatalyst for reactive oxygen species generation, recyclable catalysts, and luminophores in the photoinduced chemiluminescence system.
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Affiliation(s)
- Wenxi Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Hongjie Song
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yingying Su
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Mingxia Sun
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
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8
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Lian M, Liu M, Zhang X, Zhang W, Zhao J, Zhou X, Chen D. Template-Regulated Bimetallic Sulfide Nanozymes with High Specificity and Activity for Visual Colorimetric Detection of Cellular H 2O 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53599-53609. [PMID: 34726914 DOI: 10.1021/acsami.1c15839] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
For the past several decades, most of the research studies on nanozymes have been aimed at improving their catalytic activity and diversity; however, developing nanozymes with strong catalytic activity and great specificity remains a challenge. Herein, a simple and efficient template synthesis method was used to synthesize bimetallic sulfide nanoparticles, NiCo2S4 NPs, and prove that they have excellent peroxidase-like activity with good specificity. By regulating polyvinyl pyrrolidone (PVP) and hexadecyl trimethyl ammonium bromide as the templating agent, we have obtained the NiCo2S4 (PVP) NPs with a high Ni/Co ratio, thus exhibiting superior peroxidase activity. In addition, the NiCo2S4 NPs selectively catalyzed and oxidized colorless 3,3,5,5-tetramethylbenzidine (TMB). On being treated with H2O2, TMB turns blue while other substrates did not undergo the oxidation reaction under the same conditions, such as 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium (ABTS) and dopamine. The high specificity of NiCo2S4 NPs is due to the strong electrostatic driving coordination between negatively charged NiCo2S4 NPs and positively charged TMB. Due to the peroxidase activity of the developed NiCo2S4 NPs, a simple, low-cost, and reliable colorimetric method was established. Simultaneously, this method for in situ quantitative monitoring of H2O2 produced by MDA-MB-231 cells was also achieved. This study has provided a theoretical basis for the improvement of the activity and specificity of bimetallic sulfide nanozymes and may offer guidance for the further reasonable design of related materials.
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Affiliation(s)
- Meiling Lian
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Meihan Liu
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Xiao Zhang
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Wei Zhang
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Jingbo Zhao
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Xiaomeng Zhou
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
| | - Da Chen
- Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China
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9
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Liu L, Han Z, An F, Gong X, Zhao C, Zheng W, Mei L, Zhou Q. Aptamer-based biosensors for the diagnosis of sepsis. J Nanobiotechnology 2021; 19:216. [PMID: 34281552 PMCID: PMC8287673 DOI: 10.1186/s12951-021-00959-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/09/2021] [Indexed: 12/15/2022] Open
Abstract
Sepsis, the syndrome of infection complicated by acute organ dysfunction, is a serious and growing global problem, which not only leads to enormous economic losses but also becomes one of the leading causes of mortality in the intensive care unit. The detection of sepsis-related pathogens and biomarkers in the early stage plays a critical role in selecting appropriate antibiotics or other drugs, thereby preventing the emergence of dangerous phases and saving human lives. There are numerous demerits in conventional detection strategies, such as high cost, low efficiency, as well as lacking of sensitivity and selectivity. Recently, the aptamer-based biosensor is an emerging strategy for reasonable sepsis diagnosis because of its accessibility, rapidity, and stability. In this review, we first introduce the screening of suitable aptamer. Further, recent advances of aptamer-based biosensors in the detection of bacteria and biomarkers for the diagnosis of sepsis are summarized. Finally, the review proposes a brief forecast of challenges and future directions with highly promising aptamer-based biosensors.
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Affiliation(s)
- Lubin Liu
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Zeyu Han
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Fei An
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Xuening Gong
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Chenguang Zhao
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Weiping Zheng
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Li Mei
- School of Stomatology, Qingdao University, Qingdao, 266003, China
| | - Qihui Zhou
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China.
- School of Stomatology, Qingdao University, Qingdao, 266003, China.
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10
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Mu Q, Sun Y, Guo A, Xu X, Qin B, Cai A. A bifunctionalized NiCo 2O 4-Au composite: Intrinsic peroxidase and oxidase catalytic activities for killing bacteria and disinfecting wound. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123939. [PMID: 33254828 DOI: 10.1016/j.jhazmat.2020.123939] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/22/2020] [Accepted: 09/02/2020] [Indexed: 06/12/2023]
Abstract
A NiCo2O4-Au composite was fabricated following the calcination-reduction method and testified to exhibit the intrinsic high peroxidase- and oxidase-like activities. The composite could activate a low level of H2O2 (100 μM) to kill E. coli and S. aureus. NiCo2O4-Au composite could be easily separated by an external magnet from the media and reused several times. NiCo2O4-Au composite could also effectively damage the existing biofilms and prevent the formation of new biofilms. The electron spin resonance tests showed that NiCo2O4-Au composite catalyzed H2O2 into reactive oxygen species (ROS), mainly including OH, O2-, and 1O2; while the oxidase-like activity of NiCo2O4-Au also stemmed from the ROS formation in the absence of H2O2. The radical trapping experiment confirmed that OH and 1O2 were the main radicals in the antibacterial process for NiCo2O4-Au in the presence of H2O2. A NiCo2O4-Au based Band-Aid was also designed, which exhibited high anti-infective and wound-healing properties. This study has demonstrated that NiCo2O4-Au composite can be a promising antibacterial agent in environmental and clinical applications.
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Affiliation(s)
- Qianzhu Mu
- College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, PR China
| | - Yanfeng Sun
- Ocean College, Hebei Agricultural University, Qinhuangdao 066003, PR China.
| | - Aiying Guo
- College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, PR China
| | - Xiaoyue Xu
- College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, PR China
| | - Baoping Qin
- College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, PR China
| | - Aijun Cai
- College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066600, PR China.
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Wang XQ, Wang W, Peng M, Zhang XZ. Free radicals for cancer theranostics. Biomaterials 2020; 266:120474. [PMID: 33125969 DOI: 10.1016/j.biomaterials.2020.120474] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 09/20/2020] [Accepted: 10/18/2020] [Indexed: 01/06/2023]
Abstract
Free radicals were generally regarded as highly reactive, transient and harmful species. In fact, some of the free radicals can also be inactive, long-lived and beneficial for our health. These properties of free radicals provide future possibilities for their application in various fields. Owning to their open-shell electronic structure, free radicals exhibit unique advantages in biomedical applications, such as high reactivity, photoacoustic and photothermal conversion ability, molecular magnetic. In this review, recent progress on free radicals and their applications in cancer theranostics are presented. Typical materials that exhibit controlled generation of free radicals and their applications for photodynamic therapy (PDT), chemodynamic therapy (CDT), sonodynamic therapy (SDT), gas therapy, hypoxic cancer treatment, photothermal therapy (PTT), photoacoustic imaging (PAI) and magnetic resonance imaging (MRI) are summarized and discussed.
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Affiliation(s)
- Xiao-Qiang Wang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China; The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Wenjing Wang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Mengyun Peng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China; School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310000, PR China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, PR China.
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Yang H, He Q, Chen Y, Shen D, Xiao H, Eremin SA, Cui X, Zhao S. Platinum nanoflowers with peroxidase-like property in a dual immunoassay for dehydroepiandrosterone. Mikrochim Acta 2020; 187:592. [DOI: 10.1007/s00604-020-04528-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 08/21/2020] [Indexed: 11/25/2022]
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13
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Tripathi KM, Ahn HT, Chung M, Le XA, Saini D, Bhati A, Sonkar SK, Kim MI, Kim T. N, S, and P-Co-doped Carbon Quantum Dots: Intrinsic Peroxidase Activity in a Wide pH Range and Its Antibacterial Applications. ACS Biomater Sci Eng 2020; 6:5527-5537. [PMID: 33320561 DOI: 10.1021/acsbiomaterials.0c00831] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanozymes have drawn significant scientific interest due to their high practical importance in terms of overcoming the instability, complicated synthesis, and high cost of protein enzymes. However, their activity is generally limited to particular pHs, especially acidic ones. Herein, we report that luminescent N, S, and P-co-doped carbon quantum dots (NSP-CQDs) act as attractive peroxidase mimetics in a wide pH range, even at neutral pH, for the peroxidase substrate 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) in the presence of H2O2. The synergistic effects of multiple heteroatoms doping in CQDs boost the catalytic activity in a wide pH range attributed to the presence of high density of active sites for enzymatic-like catalysis and accelerated electron transfer during the peroxidase-like reactions. A possible reaction mechanism for the peroxidase-like activity of CQDs is investigated based on the radical trapping experiments. Moreover, the multifunctional activity of NSP-CQDs was further utilized for antibacterial assays for both Gram-negative and Gram-positive model species, including Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), respectively. The growths of the employed E. coli and S. aureus were found to be significantly inhibited due to the peroxidase-mediated perturbation of cell walls. The present work signifies the current advance in the rational design of N, S, and P-co-doped CQDs as highly active peroxidase mimics for novel applications in diverse fields, including catalysis, medical diagnostics, environmental chemistry, and biotechnology.
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Affiliation(s)
- Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam 530003, Andhra Pradesh, India
| | - Hee Tae Ahn
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, Gyeonggi 13120, South Korea
| | - Minsoo Chung
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, Gyeonggi 13120, South Korea
| | - Xuan Ai Le
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, Gyeonggi 13120, South Korea
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Anshu Bhati
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India
| | - Moon Il Kim
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, Gyeonggi 13120, South Korea
| | - TaeYoung Kim
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam, Gyeonggi 13120, South Korea
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Cao X, Xia Z, Yan W, He S, Xu X, Wei Z, Ye Y, Zheng H. Colorimetric biosensing of nopaline synthase terminator using Fe 3O 4@Au and hemin-functionalized reduced graphene oxide. Anal Biochem 2020; 602:113798. [PMID: 32505706 DOI: 10.1016/j.ab.2020.113798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/16/2022]
Abstract
In this paper, we present a simple and label-free colorimetric biosensor for detection of the nopaline synthase (NOS) terminator in genetically modified (GM) plants. The "signal on" colorimetric biosensor was developed using a nanocomposite consisted of gold nanoparticles doped magnetic Fe3O4 nanoparticles (Fe3O4@Au NP), capture probe DNA (cDNA), and hemin-functionalized reduced graphene oxide nanosheets (H-GN). The nanocomposite was successfully prepared by means of Au-S bonds and the strong π interactions between cDNA and H-GN. The sensing approach is based on the excellent peroxidase-mimicking activity of H-GN and its different electrostatic interactions with single-stranded DNA (ssDNA) and double-stranded DNA (dsDNA). In presence of the target NOS, the cDNA in the nanocomposite will hybridize with its complementary sequence, and form dsDNA structure. Due to the weak π interactions between dsDNA and H-GN, a portion of H-GN will be released from the surface of Fe3O4@Au NPs and transferred into solution. After magnetic separation was performed, the supernatant was incubated with 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of H2O2. The released H-GN can catalyze the oxidation reaction of TMB and turn the colorless solution blue. This "signal-on" colorimetric biosensor shows a broad linear range of 0.5-100 nM for the target NOS, with a 0.19 nM detection limit. The application of the biosensor for determination of NOS segments in samples of GM and non-GM tomatoes shows that it can discriminate between GM and non-GM plants. The reliability of the method for samples of NOS-spiked GM tomato suggests satisfactory recoveries in the range of 93.6%-94.2%.
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Affiliation(s)
- Xiaodong Cao
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zihao Xia
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Wuwen Yan
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Shudong He
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xuan Xu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhaojun Wei
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yongkang Ye
- School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
| | - Haisong Zheng
- Technology Center of Hefei Customs, Hefei, 230032, China
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15
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Feng L, Zhang L, Zhang S, Chen X, Li P, Gao Y, Xie S, Zhang A, Wang H. Plasma-Assisted Controllable Doping of Nitrogen into MoS 2 Nanosheets as Efficient Nanozymes with Enhanced Peroxidase-Like Catalysis Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17547-17556. [PMID: 32223269 DOI: 10.1021/acsami.0c01789] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Heteroatom doping is one of the effective ways to improve the catalytic performances of nanozymes. In the present work, the plasma-assisted controllable doping of nitrogen (N) into MoS2 nanosheets has been initially proposed, resulting in efficient nanozymes. The so-obtained nanozymes were characterized separately by TEM, XRD, XPS, and FTIR. It was discovered that the resulting N-doped MoS2 nanosheets could present dramatically enhanced peroxidase-like catalytic activities depending on the plasma treatment time. Particularly, that with the 2-min treatment could display the highest catalytic activity, which is over 3-fold higher than that of pristine MoS2, that was also demonstrated by the kinetics studies. Herein, the N2 plasma treatment could facilitate the N elements to be doped covalently into MoS2 nanosheets to achieve the increased surface wettability and affinity of nanozymes for the improved access of the electrons and substrates of catalytic reactions. More importantly, the covalent doping of N elements into MoS2 nanosheets with a lower Fermi level, as evidenced by the DFT analysis, could facilitate the promoted electron transferring, resulting in the enhanced catalysis of N-doped MoS2 nanozymes, in addition to the high catalytic stability in water. Such a controllable plasma treatment strategy may open a new door toward the large-scale applications for doping heteroatoms into various nanozymes with improved catalysis performances.
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Affiliation(s)
- Luping Feng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, People's Republic of China
| | - Lixiang Zhang
- School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, People's Republic of China
| | - Sheng Zhang
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Xi Chen
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, People's Republic of China
| | - Pan Li
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Yuan Gao
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Shujing Xie
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
| | - Anchao Zhang
- School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, People's Republic of China
| | - Hua Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, People's Republic of China
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, People's Republic of China
- School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, People's Republic of China
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Men D, Liu G, Xing C, Zhang H, Xiang J, Sun Y, Hang L. Dynamically Tunable Plasmonic Band for Reversible Colorimetric Sensors and Surface-Enhanced Raman Scattering Effect with Good Sensitivity and Stability. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7494-7503. [PMID: 31944661 DOI: 10.1021/acsami.9b23172] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A colorimetric sensor based on plasmonic nanoparticles (NPs) is a promising and convenient detection tool, but its reproducibility and adjustability remain a challenge because the NPs are mainly random and uncontrollable. Herein, a colorimetric sensor with good reversibility and reproducibility was prepared by embedding the two-dimensional (2D) Au NP arrays on the surface of the polyacrylamide hydrogel film to form 2D Au NP arrays attached a hydrogel composite. For this composite, with the change of the interspacing distance of Au NPs driven by the swelling-shrinking behavior of the hydrogel carrier, the diffraction peaks faded away and plasmonic coupling peaks appeared, accompanied by a series of obvious color changes (iridescence ↔ violet ↔ golden yellow ↔ red), which can be correlated to the applied water content. Importantly, the composite had good reproducibility as a result of a highly ordered array structure. Additionally, this colorimetric sensor with a dynamically tunable plasmonic band can be used as a high-quality surface-enhanced Raman scattering (SERS) substrate because the gap distance of the Au NPs can be uniformly controlled. We demonstrated that, as the active gap distance decreased, the SERS signals can be significantly intensified. When the water content reached 40%, this SERS substrate exhibited high sensitivity (10-10 M for 4-aminothiophenol and 10-9 M for thiram) and good reproducibility (relative standard deviation of <20%) using the excitation laser of 785 nm because of the small gap between two adjacent Au NPs and the highly ordered periodic structure. Such 2D Au NP arrays attached to a hydrogel composite could be a new strategy to obtain a high-quality colorimetric sensor and dynamic SERS substrate.
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Affiliation(s)
- Dandan Men
- Jiangxi Key Laboratory of Surface Engineering , Jiangxi Science and Technology Normal University , Nanchang , Jiangxi 330013 , People's Republic of China
| | - Guangqiang Liu
- Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering , Qufu Normal University , Qufu , Shandong 273165 , People's Republic of China
| | - Changchang Xing
- University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
| | - Honghua Zhang
- Jiangxi Key Laboratory of Surface Engineering , Jiangxi Science and Technology Normal University , Nanchang , Jiangxi 330013 , People's Republic of China
| | - Junhuai Xiang
- Jiangxi Key Laboratory of Surface Engineering , Jiangxi Science and Technology Normal University , Nanchang , Jiangxi 330013 , People's Republic of China
| | - Yiqiang Sun
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan , Shandong 250022 , People's Republic of China
| | - Lifeng Hang
- Department of Medical Imaging, Guangdong Second Provincial General Hospital , Southern Medical University , Guangzhou , Guangdong 518037 , People's Republic of China
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Du J, Fan Y, Gan X, Dang X, Zhao H. Three-dimension branched crystalline carbon nitride: A high efficiency photoelectrochemical sensor of trace Cu2+ detection. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135336] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Zhang Y, Shi L, Geng Z, Ren T, Yang Z. The improvement of photocatalysis O 2 production over BiVO 4 with amorphous FeOOH shell modification. Sci Rep 2019; 9:19090. [PMID: 31836725 PMCID: PMC6911067 DOI: 10.1038/s41598-019-54940-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 11/19/2019] [Indexed: 12/20/2022] Open
Abstract
A novel amorphous FeOOH modified BiVO4 photocatalyst (A-FeOOH/BiVO4) was successfully produced and characterized by various techniques. The results showed that amorphous FeOOH with about 2 nm thickness evenly covered on BiVO4 surface, which caused resultant A-FeOOH/BiVO4 exhibiting higher visible light photocatalytic performance for producing O2 from water than BiVO4. When the covered amount of amorphous FeOOH was 8%, the resultant photocatalyst possessed the best photocatalytic performance. To find the reasons for the improvement of photocatalytic property, electrochemical experiments, DRS, PL and BET, were also measured, the experimental results indicated that interface effect between amorphous FeOOH and BiVO4 could conduce to migration of photogenerated charge, and exhibit stronger light responded capacity. These positive factors promoted A-FeOOH/BiVO4 presenting improved the photocatalytic performance. In a word, the combination of amorphous FeOOH with BiVO4 is an effective strategy to conquer important challenges in photocatalysis field.
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Affiliation(s)
- Ying Zhang
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, China
| | - Lei Shi
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, China.
| | - Zhongxing Geng
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, China
| | - Tieqiang Ren
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, China
| | - Zhanxu Yang
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, China.
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