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Yang X, Zhao L, Yang S, Tang M, Fa H, Huo D, Hou C, Yang M. Label-free fluorescent sensor for sensitive detection of ctDNA based on water stabilized CsPbBr 3 nanosheet. Biosens Bioelectron 2024; 253:116165. [PMID: 38437747 DOI: 10.1016/j.bios.2024.116165] [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: 12/11/2023] [Revised: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/06/2024]
Abstract
The detection of circulating tumor DNA (ctDNA), as a practical liquid biopsy technique, was of great significance for the study of cancer diagnosis and prognosis. However, reported methods for detection ctDNA still have some limitations, such as tedious process and high cost. In this study, CsPbBr3 nanosheet (CsPbBr3 NS) with high water stability was prepared by etching, and its fluorescence intensity could be stably stored for 1 year. The Ti3C2Tx possessed high quenching efficiency for CsPbBr3 NS and the HOMO-LUMO orbital study revealed that the PET mechanism was responsible for fluorescence quenching. And the Ti3C2Tx showed stronger affinity towards single-stranded DNA (ssDNA), as compared with double-stranded DNA (dsDNA). The probe ssDNA could be adsorbed on the surface of Ti3C2Tx through π-π stacking. After the targets were recognized by probe ssDNA to form dsDNA, its affinity with Ti3C2Tx decreased and the active site of Ti3C2Tx recovered, causing a high quenching efficiency on CsPbBr3 NS. Based on this, a label-free fluorescent biosensor was designed for the sensitive detection of ctDNA (EGFR 19 Dels for non-small cell lung cancer, NSCLC). Under the optimal experimental conditions, this biosensor exhibited a detection limit of 180 fM and a linear range of 50 pM-350 pM with amplification of magnetic beads through strand displacement reaction. In addition, this sensor was applied to the detection of ctDNA in serum samples and cells lysates. This method for ctDNA detection was expected to have great potential for biomarker detection in the field of liquid biopsy.
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Affiliation(s)
- Xiao Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Liangyi Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Siyi Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Miao Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Huanbao Fa
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, PR China
| | - Danqun Huo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China; College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Changjun Hou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China; College of Bioengineering, Chongqing University, Chongqing, 400044, PR China.
| | - Mei Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China; College of Bioengineering, Chongqing University, Chongqing, 400044, PR China.
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2
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Huang Y, Lin F, Li F, Jin J, Guo Z, Tian D, Xie R, Chen X. Photoluminescence Enhancement in Silica-Confined Ligand-Free Perovskite Nanocrystals by Suppression of Silanol-Induced Traps and Phase Impurities. Angew Chem Int Ed Engl 2024; 63:e202402520. [PMID: 38400810 DOI: 10.1002/anie.202402520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 02/26/2024]
Abstract
The detriments of intrinsic silanol groups in mesoporous silica to the photoluminescence (PL) of lead halide perovskite nanocrystals (LHP NCs) confined in the template have never been determined and clearly elucidated. Here, we disclose that silanol-induced Cs+ and Br- deficiencies prompt the generation of traps and CsPb2Br5 impurities. The temperature-dependent PL spectra verify the higher energetic barrier of trap states in CsPbBr3 NCs confined in silanol-rich mesoporous silica. Femtosecond transient absorption spectra reveal the trapped state mediates a broadband photoinduced absorption and long-lived decay pathway of CsPbBr3 NCs in silanol-rich templates. A remarkable improvement (up to 160-fold) in PL quantum yields is realized by simple silanol elimination. This work demonstrates the detrimental effects of silanol sites on the PL properties of LHP NCs impregnated in mesoporous silica and provides a new perspective for the ligand-free synthesis of high-quality LHP NCs in mesoporous templates by facile impregnation for practical applications.
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Affiliation(s)
- Yipeng Huang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Current Address: College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi, 541004, China
| | - Fangyuan Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Feiming Li
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Jinwen Jin
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Healthy, Xiamen Huaxia University, Xiamen, 361024, China
| | - Zhiyong Guo
- Institute of Analytical Technology and Smart Instruments and College of Environment and Public Healthy, Xiamen Huaxia University, Xiamen, 361024, China
| | - Dongjie Tian
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rongjun Xie
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xi Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China
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3
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Li Y, Cui Z, Shi L, Shan J, Zhang W, Wang Y, Ji Y, Zhang D, Wang J. Perovskite Nanocrystals: Superior Luminogens for Food Quality Detection Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4493-4517. [PMID: 38382051 DOI: 10.1021/acs.jafc.3c06660] [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: 02/23/2024]
Abstract
With the global limited food resources receiving grievous damage from frequent climate changes and ascending global food demand resulting from increasing population growth, perovskite nanocrystals with distinctive photoelectric properties have emerged as attractive and prospective luminogens for the exploitation of rapid, easy operation, low cost, highly accurate, excellently sensitive, and good selective biosensors to detect foodborne hazards in food practices. Perovskite nanocrystals have demonstrated supreme advantages in luminescent biosensing for food products due to their high photoluminescence (PL) quantum yield, narrow full width at half-maximum PL, tunable PL in the entire visible spectrum, easy preparation, and various modification strategies compared with conventional semiconductors. Herein, we have carried out a comprehensive discussion concerning perovskite nanocrystals as luminogens in the application of high-performance biosensing of foodborne hazards for food products, including a brief introduction of perovskite nanocrystals, perovskite nanocrystal-based biosensors, and their application in different categories of food products. Finally, the challenges and opportunities faced by perovskite nanocrystals as superior luminogens were proposed to promote their practicality in the future food supply.
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Affiliation(s)
- Yuechun Li
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Zhaowen Cui
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Longhua Shi
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Jinrui Shan
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Wentao Zhang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Yanru Wang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Yanwei Ji
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Daohong Zhang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
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4
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Zhang Z, Li D, Hu H, Chu Y, Xu J. In Situ Growth of Lead-Free Cs 2CuBr 4 Perovskite Quantum Dots in KIT-6 Mesoporous Molecular Sieve for CO 2 Adsorption, Activation, and Reduction. Inorg Chem 2023. [PMID: 37235766 DOI: 10.1021/acs.inorgchem.3c01189] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Metal halide perovskites (MHPs) are emerging as promising candidates for photocatalytic CO2 conversion. However, their practical application is still restricted by the poor intrinsic stability and weak adsorption/activation toward CO2 molecules. The rational design of MHPs-based heterostructures with high stability and abundant active sites is a potential solution to this obstacle. Herein, we report the in situ growth of lead-free Cs2CuBr4 perovskite quantum dots (PQDs) in KIT-6 mesoporous molecular sieve, obtaining remarkable photocatalytic CO2 reduction activity and durable stability. The optimized Cs2CuBr4@KIT-6 heterostructure exhibits the photocatalytic CO and CH4 evolution rates of 51.6 and 17.2 μmol g-1 h-1, respectively, far exceeding those of pristine Cs2CuBr4. On the basis of in situ diffuse reflectance infrared Fourier transform spectra and theoretical investigations, the detailed CO2 photoreduction pathway is systematically revealed. This work provides a new route for the rational construction of perovskite-based heterostructures with strong CO2 adsorption/activation and good stability for photocatalytic CO2 reduction.
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Affiliation(s)
- Zhijie Zhang
- School of Materials Science and Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China
| | - Deben Li
- School of Materials Science and Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China
| | - Hao Hu
- School of Materials Science and Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China
| | - Yaoqing Chu
- School of Materials Science and Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China
| | - Jiayue Xu
- School of Materials Science and Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, P. R. China
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5
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Zhang L, Zhu Y, Guo Z, You L, Zhang C, Chen X. Colorimetric Sensing of the Peroxide Number of Milk Powder Using CsPbBr 3 Perovskite Nanocrystals. BIOSENSORS 2023; 13:bios13040493. [PMID: 37185568 PMCID: PMC10137039 DOI: 10.3390/bios13040493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023]
Abstract
In this study, a wavelength-shift-based colorimetric sensing approach for the peroxide number of milk powder using CsPbBr3 perovskite nanocrystals (CsPbBr3 NCs) has been developed. Through the fat extraction, REDOX reactions and halogen exchange, as well as the optimized experimental conditions, a colorimetric sensing method was established to determine the peroxide number of milk powder samples. The integrated process of milk powder fat extraction and the REDOX process greatly shortened the determination time. This colorimetric method has a good linear correlation in the range of the peroxide number from 0.02 to 1.96 mmol/kg, and the detection limit was found to be 3 μmol/kg. This study further deepens the application prospect of wavelength-shift-based colorimetric sensing using CsPbBr3 NCs.
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Affiliation(s)
- Li Zhang
- Institute of Analytical Technology and Smart Instruments, College of Environment and Public Healthy, Xiamen Huaxia University, Xiamen 361024, China
| | - Yimeng Zhu
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Zhiyong Guo
- Institute of Analytical Technology and Smart Instruments, College of Environment and Public Healthy, Xiamen Huaxia University, Xiamen 361024, China
| | - Longjie You
- National Quality Supervision and Inspection Center for Incense Products, Yongchun 362600, China
| | - Chen Zhang
- Institute of Analytical Technology and Smart Instruments, College of Environment and Public Healthy, Xiamen Huaxia University, Xiamen 361024, China
| | - Xi Chen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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6
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Zhang P, Zhang S, Hu X, Zhang M, You C, Chen G, Yang W, Huang W, Chen T, Li F. Traffic light-type ratiometric fluorescence visual sensing of Cs + in soybean oil based on dimension regulation of 2D perovskite nanosheets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 284:121818. [PMID: 36087405 DOI: 10.1016/j.saa.2022.121818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/31/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Determination of cesium ion in soybean oil is of high importance since the increasing risk from releasing of main component of nuclear waste cesium 137. The complex composition and high viscosity of soybean oil make it necessary to convert it into water phase by nitration before detection, so developing a simple, accurate and sensitive method for on-site sensing of Cs+ in soybean oil is still a big challenge. In this work, we report a traffic light-type ratiometric fluorescence strategy for the visual sensing of Cs+ in soybean oil based on dimensional regulation of two dimensional (PEA)2PbI4 perovskite nanosheets (NSs). The PEA+ in (PEA)2PbI4 NSs exchanged with Cs+ and lead to dimension of partial (PEA)2PbI4 NSs progressively increase from 2D to 3D CsPbI3 NCs. Resultantly, the fluorescence of (PEA)2PbI4 NSs decreases with a concomitant fluorescence enhancement of CsPbI3 NCs upon increasing the concentrations of Cs+, and the emission accordingly change from green, yellow to red with a high fluorescence colorimetric resolution up to 5.0 μM, make it successful to achieve on-site sensing of Cs+ in soybean oil just with naked eye in 5 min without any nitration, demonstrating a bright application future for determination of Cs+ in the soybean oil.
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Affiliation(s)
- Peng Zhang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Shufen Zhang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xiaoxi Hu
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Maosheng Zhang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Chaoyu You
- Intelligent Wearable Engineering Research Center of Qingdao, State Key Laboratory of Bio-Fibers and Eco-Textiles, Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, Qingdao University, Qingdao 266003, PR China
| | - Guoliang Chen
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Wenli Yang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Wei Huang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Tianju Chen
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Feiming Li
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China.
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7
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Huang X, Lin D, Duan P, Chen H, Zhao Y, Yang W, Pan Q, Tian X. Space-confined growth of nanoscale metal-organic frameworks/Pd in hollow mesoporous silica for highly efficient catalytic reduction of 4-nitrophenol. J Colloid Interface Sci 2023; 629:55-64. [PMID: 36150248 DOI: 10.1016/j.jcis.2022.09.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/26/2022] [Accepted: 09/13/2022] [Indexed: 11/23/2022]
Abstract
The development of confined growth of metal-organic frameworks (MOFs) in a nano-space remains a challenge mainly due to the spatial size randomness and inhomogeneity of host materials and the limitation of MOF species. In this study, we developed a general "stepwise vacuum evaporation" strategy, which allows the nano-confined growth of MOFs in hollow mesoporous silica nanospheres (HMSN) by the vacuum forces and the capillary effect. A series of nanoscale MOFs including ZIF-8, ZIF-90, HKUST-1, MIL-53(Cr) and UiO-66-NH2 were confinely synthesized inside the cavities of HMSN, resulting in hierarchically porous composites with core-shell structures. Further functionalization was studied by anchoring Pd to obtain UiO-66-NH2/Pd@HMSN catalyst, which exhibited excellent activity in the catalytic reduction of 4-nitrophenol to 4-aminophenol under ambient condition.
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Affiliation(s)
- Xiaojing Huang
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Duoyu Lin
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Pan Duan
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Huiping Chen
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Yujuan Zhao
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Weiting Yang
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China.
| | - Qinhe Pan
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
| | - Xinlong Tian
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, China
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8
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Liu S, Lin D, Lai Y, Hou L, Lin T, Zhao S. Gas-Mediated Immunoassay for the Carcinoembryonic Antigen at Atmospheric Pressure with Smartphone Coupling with the Fluorescence Quenching Length of Perovskite Capillary. Anal Chem 2022; 94:18074-18082. [PMID: 36516357 DOI: 10.1021/acs.analchem.2c04622] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
By combining the photothermal properties of the 3,3',5,5'-tetramethylbenzidine oxidation product (TMBox) with the sensitive quenching of perovskite fluorescence by ammonia gas, a gas-mediated immunoassay at atmospheric pressure was constructed, which took the fluorescence quenching length of perovskite fluorescent capillary as the signal output. First, a CsPbBr3 perovskite with surface modification of 3-aminopropyl triethoxysilane was synthesized by thermal injection and decorated to the capillary wall by glutaraldehyde cross-linking. In the presence of H2O2 and the tumor marker carcinoembryonic antigen (CEA), TMB was oxidized to TMBox by the horseradish peroxidase (HRP)-labeled CEA antibody. The photothermal effect of TMBox at 808 nm laser irradiation increases the concentration of ammonia gas, and the prepared fluorescent capillary can respond sensitively to ammonia gas. The fluorescence quenching length can be observed by the naked eye for a semiquantitative evaluation of CEA concentration. At the same time, we developed a mobile APP for the first time to measure the fluorescence quenching length. In the range of 0-20 ng mL-1, the quenching length increased linearly with the increase in CEA concentration, and the detection limit was 0.078 ng mL-1. This method has been successfully used for the detection of CEA in human serum with a recovery of 95.8%-106.5%.
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Affiliation(s)
- Shendong Liu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Danxuan Lin
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Yunping Lai
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Li Hou
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Tianran Lin
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Shulin Zhao
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, People's Republic of China
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9
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Jia D, Xu M, Mu S, Ren W, Liu C. Recent Progress of Perovskite Nanocrystals in Chem/Bio Sensing. BIOSENSORS 2022; 12:bios12090754. [PMID: 36140139 PMCID: PMC9496257 DOI: 10.3390/bios12090754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
Abstract
Perovskite nanocrystals (PNCs) are endowed with extraordinary photophysical properties such as wide absorption spectra, high quantum yield, and narrow emission bands. However, the inherent shortcomings, especially the instability in polar solvents and water incompatibility, have hindered their application as probes in chem/bio sensing. In this review, we give a fundamental understanding of the challenges when using PNCs for chem/bio sensing and summarize recent progress in this area, including the application of PNCs in various sensors and the corresponding strategies to maintain their structural integrity. Finally, we provide perspectives to promote the future development of PNCs for chem/bio sensing applications.
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Affiliation(s)
- Dailu Jia
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi’an 710119, China
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Xi’an 710119, China
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Meng Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi’an 710119, China
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Xi’an 710119, China
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Shuang Mu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi’an 710119, China
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Xi’an 710119, China
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Wei Ren
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi’an 710119, China
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Xi’an 710119, China
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
- Correspondence:
| | - Chenghui Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi’an 710119, China
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Xi’an 710119, China
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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10
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Feng X, Zhang X, Huang J, Wu R, Leng Y, Chen Z. CsPbBr 3 and CsPbBr 3/SiO 2 Nanocrystals as a Fluorescence Sensing Platform for High-Throughput Identification of Multiple Thiophene Sulfides. Anal Chem 2022; 94:5946-5952. [PMID: 35373557 DOI: 10.1021/acs.analchem.2c00374] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Air pollution is a serious problem. Refractory thiophene sulfides, which cause air pollution, bring great challenges to their rapid and accurate identification. In this work, we propose a fluorescent sensor array based on two perovskite nanocrystals (CsPbBr3 NCs and CsPbBr3/SiO2 NCs) to distinguish different thiophene sulfides. The hydrogen bonding force between the thiophenics of thiophene sulfides and the amino groups of the perovskite NCs results in the weakening of the fluorescence signals of the perovskite NCs. The diverse interactions between thiophene sulfides and two perovskite NCs provide rich information, which can be obtained on the sensor array and identified by linear discriminant analysis. Five thiophene sulfides (i.e., benzothiophene, dibenzothiophene, 2-methylbenzothiophene, 3-methylthiophene, and thiophene) were discriminated by the sensor array at concentrations of 10-50 ppm. The effectiveness of the sensor array was further verified in the discrimination of blinded samples, in which all 10 samples were correctly identified. In addition, it is gratifying that even binary mixtures of thiophene sulfides could be distinguished by the proposed sensor array.
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Affiliation(s)
- Xiaowei Feng
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xinyu Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Juan Huang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Rufen Wu
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yumin Leng
- College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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11
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Yin W, Wang H, Deng B, Ma F, Zhang J, Zhou M, Wang H, Lu Y. A pyrylium salt-based fluorescent probe for the highly sensitive detection of methylamine vapour. Analyst 2022; 147:3451-3455. [DOI: 10.1039/d2an00911k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The MTPY exhibits an obvious fluorescence response from yellow to cyan when reacted with CH3NH2 with a low detection limit (2.6 ppt, 8.4 × 10−8 M). The sensing mechanism was traced by mass spectrometry.
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Affiliation(s)
- Wenzhu Yin
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Hongjin Wang
- College of Chemistry and Environmental Science, YiLi Normal University, Yining 835000, P.R. China
| | - Bihua Deng
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Fang Ma
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Jinqiu Zhang
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Mingxu Zhou
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Haiyang Wang
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Yu Lu
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
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12
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Zhong Y, Chen Y, Hu Y, Li G, Xiao X. Multifunctional MgO/HKUST-1 Composite for Capture, Catalysis, and Cyclic Cataluminescence Detection of Esters All-In-One to Rapidly Identify Scented Products. Anal Chem 2021; 93:16203-16212. [PMID: 34817174 DOI: 10.1021/acs.analchem.1c04100] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The integration of metallic oxide and metal-organic frameworks has attracted considerable attention as obtained composite materials because they show synergistic effects in applications of catalysis and sensing. Herein, we developed the hybrid MgO and HKUST-1 for efficient capture, catalysis, and cyclic cataluminescence (CCTL) detection of esters all-in-one to rapidly identify scented products. The multifunctional MgO/HKUST-1 composite with high CCTL activity was synthesized and characterized. The multifunctional MgO/HKUST-1 composite acts as an enrichment material for ester capture and serves as a catalyst, assisting the analyte to trigger multistage signals. The multistage signals of ester-containing scented products also satisfy the exponential decay equation with a certain τ-value. The τ-values obtained by the CCTL system were applied to identify the brands of essential oils. The working temperature served as the sensor element to obtain various τ-values. The τ-values constituted a digital code to label the different brands of cigarettes with the same aroma type. The multistage signals could be used to distinguish the origin regions of essential oils and tobacco. This work combines the CCTL strategy with the sample pretreatment, opening up a new direction to develop CCL and providing a new platform to rapidly identify ester-containing scented products.
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Affiliation(s)
- Yanhui Zhong
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Yanlong Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiaohua Xiao
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
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13
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Thuy TT, Huy BT, Kumar AP, Lee YI. Highly stable Cs4PbBr6/CsPbBr3perovskite nanoparticles as a new fluorescence nanosensor for selective detection of trace tetracycline in food samples. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.08.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Huang Y, Lai Z, Jin J, Lin F, Li F, Lin L, Tian D, Wang Y, Xie R, Chen X. Ultrasensitive Temperature Sensing Based on Ligand-Free Alloyed CsPbCl x Br 3-x Perovskite Nanocrystals Confined in Hollow Mesoporous Silica with High Density of Halide Vacancies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103425. [PMID: 34647396 DOI: 10.1002/smll.202103425] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Temperature sensing based on fluorescent semiconductor nanocrystals has recently received immense attention. Enhancing the trap-facilitated thermal quenching of the fluorescence should be an effective approach to achieve high sensitivity for temperature sensing. Compared with conventional semiconductor nanocrystals, the defect-tolerant feature of lead halide perovskite nanocrystals (LHP NCs) endows them with high density of defects. Here, hollow mesoporous silica (h-SiO2 ) template-assisted ligand-free synthesis and halogen manipulation (chloride-importing) are proposed to fabricate highly defective yet fluorescent CsPbCl1.2 Br1.8 NCs confined in h-SiO2 (CsPbCl1.2 Br1.8 NCs@h-SiO2 ) for ultrasensitive temperature sensing. The trap barrier heights, exciton-phonon scattering, and trap state filling process in the CsPbCl1.2 Br1.8 NCs@h-SiO2 and CsPbBr3 NCs@h-SiO2 are studied to illustrate the higher temperature sensitivity of CsPbCl1.2 Br1.8 NCs@h-SiO2 at physiological temperature range. By integrating the thermal-sensitive CsPbCl1.2 Br1.8 NCs@h-SiO2 and thermal-insensitive K2 SiF6 :Mn4+ phosphor into the flexible ethylene-vinyl acetate polymer matrix, ratiometric temperature sensing from 30.0 °C to 45.0 °C is demonstrated with a relative temperature sensitivity up to 13.44% °C-1 at 37.0 °C. The composite film shows high potential as a thermometer for monitoring the body temperature. This work demonstrates the unparalleled temperature sensing performance of LHP NCs and provides new inspiration on switching the defects into advantages in sensing applications.
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Affiliation(s)
- Yipeng Huang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhiwei Lai
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jingwen Jin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Fangyuan Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Feiming Li
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Longhui Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Dongjie Tian
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yiru Wang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rongjun Xie
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xi Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, 518000, China
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15
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Recent progress on the modifications of ultra-small perovskite nanomaterials for sensing applications. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116432] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Chen S, Huang M, Huang M, Feng L. Fluorometric determination of ziram using CsPbBr 3 quantum dots. Mikrochim Acta 2021; 188:390. [PMID: 34677687 DOI: 10.1007/s00604-021-05045-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 10/02/2021] [Indexed: 11/24/2022]
Abstract
A strategy based on CsPbBr3 quantum dots (QDs) is described for the determination of ziram pesticide. A facile and inert gas-free method was used for the synthesis of CsPbBr3 QDs. The obtained CsPbBr3 QDs displayed turn-off fluorescence behavior for ziram. The fluorescence intensity of the CsPbBr3 QDs (Ex/Em = 365/516 nm) was inversely proportional to the concentration of ziram (0.10 to 50.0 ppm) with a detection limit of 0.086 ppm. Notably, satisfactory recoveries (100 ± 0.25 to 107 ± 5.72%) were obtained in spiked fruit samples, which demonstrated that this method is capable of detecting ziram in real samples. In addition, the mechanism for the detection of ziram was investigated in detail. According to the results, this mechanism can be tentatively explained by fluorescence quenching originating from the increased surface defects and the structural changes of the CsPbBr3 QDs. The detection ability of this strategy shows promising applicability in food safety.
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Affiliation(s)
- Shuqin Chen
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China.
| | - Mengna Huang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China
| | - Mianli Huang
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, People's Republic of China
| | - Liang Feng
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, People's Republic of China.
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Zhao Y, Xu Y, Shi L, Fan Y. Perovskite Nanomaterial-Engineered Multiplex-Mode Fluorescence Sensing of Edible Oil Quality. Anal Chem 2021; 93:11033-11042. [PMID: 34320808 DOI: 10.1021/acs.analchem.1c02425] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Water-soluble fluorescence nanomaterials are widely applied for water-phase food safety monitoring. However, there is still a challenge for the development of oil-soluble fluorescence nanomaterials for oil-phase food safety detection. Particularly, the edible oil quality has a huge impact on human health, in which excessive acid number (AN), 3-chloro-1,2-propanediol (3-MCPD), and moisture content (MC) are critical monitoring factors. Herein, orange-emitting oil-soluble CsPbBr1.5I1.5 quantum dots (QDs) were prepared and applied for AN and 3-MCPD detection depending on fluorescence quenching and wavelength shifts. A "turn-off" fluorescence sensor and "wavelength-shift" fluorescence colorimetric sensor were fabricated for AN and 3-MCPD detection. Water-sensitive mesoporous silica-coated CsPbBr1.5I1.5 QDs were employed for the establishment of ratiometric fluorescence sensors for MC monitoring by introducing water-stable green-emitting CsPbBr3 nanosheets (NSs) as reference probes. Perovskite nanomaterial-engineered multiplex-mode fluorescence sensors were proposed for the detection of AN, 3-MCPD, and MC in edible oil, with the limits of detection (LODs) of 0.71 mg KOH/g, 39.8 μg/mL 3-MCPD, and 0.45% MC, respectively. This work not only expands the application of perovskite nanomaterials in the bioanalysis field but also provides new materials and novel approaches for the multiplex-mode oil-phase food safety monitoring.
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Affiliation(s)
- Yuan Zhao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yinjuan Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Lixia Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ying Fan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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18
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Yang H, Zhang M, Wang L, Yu R, Tu W, Wang Z, Wang R, Gao H, Dai Z. Modulating Polarization of Perovskite-Based Heterostructures via In Situ Semiconductor Generation and Enzyme Catalysis for Signal-Switchable Photoelectrochemical Biosensing. Anal Chem 2021; 93:8370-8378. [DOI: 10.1021/acs.analchem.1c01457] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Hao Yang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Min Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Lei Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Renzhong Yu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Wenwen Tu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Zhaoyin Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Rui Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Huan Gao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
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19
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Colorimetric Determination of Chloridion in Domestic Water Based on the Wavelength Shift of CsPbBr3 Perovskite Nanocrystals via Halide Exchange. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00160-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractCubic phase CsPbBr3 perovskite nanocrystals (PNCs) was prepared by a high-temperature hot-injection method. The high photoluminescence quantum yield (PLQY) of as-prepared CsPbBr3 PNCs was 87%, which can be used for the determination of chloridion in domestic water samples based on their wavelength-shift characteristics via halide exchange. The proposal approach for the determination of chloridion reveals a linear correlation ranged from 10 to 200 μM of the chloridion concentration and the wavelength shift of CsPbBr3 PNCs with a correlation coefficient of R2 = 0.9956. The as-mentioned method reveals neglectable responses towards those co-existing ions in the water aside from chloridion, due to the quick exchange between Cl and Br and the outstanding color change caused by wavelength shift. The strategy has been applied to the determination of chloridion in water samples with the recoveries of 98.9–104.2% and the limit of detection (LOD) of 4 μM. These results show that the suggested approach is promising for the development of novel fluorescence detection for chloridion in water.
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20
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Huang Y, Feng Y, Li F, Lin F, Wang Y, Chen X, Xie R. Sensing studies and applications based on metal halide perovskite materials: Current advances and future perspectives. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116127] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Abstract
Recently, perovskite-based nanomaterials are utilized in diverse sustainable applications. Their unique structural characteristics allow researchers to explore functionalities towards diverse directions, such as solar cells, light emitting devices, transistors, sensors, etc. Many perovskite nanomaterial-based devices have been demonstrated with extraordinary sensing performance to various chemical and biological species in both solid and solution states. In particular, perovskite nanomaterials are capable of detecting small molecules such as O2, NO2, CO2, etc. This review elaborates the sensing applications of those perovskite materials with diverse cations, dopants and composites. Moreover, the underlying mechanisms and electron transport properties, which are important for understanding those sensor performances, will be discussed. Their synthetic tactics, structural information, modifications and real time sensing applications are provided to promote such perovskite nanomaterials-based molecular designs. Lastly, we summarize the perspectives and provide feasible guidelines for future developing of novel perovskite nanostructure-based chemo- and biosensors with real time demonstration.
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