1
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Yang Y, Wang S, Liu X, Zhang W, Tong W, Luo H, Zhao L. Interactions of ferulic acid and ferulic acid methyl ester with endogenous proteins: Determination using the multi-methods. Heliyon 2024; 10:e24605. [PMID: 38312678 PMCID: PMC10835327 DOI: 10.1016/j.heliyon.2024.e24605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/06/2024] Open
Abstract
Ferulic acid (FA) and ferulic acid methyl ester (FAM) are important phenolic compounds in Baijiu. In this study, the interaction of FA and FAM with human serum albumin (HSA) and lysozyme (LZM) was investigated using multispectral methods and molecular dynamics simulation. FA and FAM could interact with HSA and LZM, changing the conformation and hydrophilicity of the protein. The quenching mechanisms of FA-HSA, FA-LZM, FAM-HSA, and FAM-LZM were all static-quenching. In the FA-HSA, FAM-HSA, and FA-LZM systems, the interaction forces were mainly hydrophobic interactions and hydrogen bonding. In the FAM-LZM system, the interaction forces were mainly hydrophobic interactions, hydrogen bonding, and van der Waals force. Common metal ions such as K+, Ca2+, Cu2+, Mg2+, and Mn2+ could affect the binding ability of FA and FAM to HSA and LZM. Moreover, FA and FAM could increase the stability of HSA and LZM, and the protein bound to FA/FAM was more stable than the free protein. FA and FAM had varying degrees of impact on the physiological activities of HSA and LZM. This study provides relevant information on the interactions and metabolic mechanisms of FA and its derivatives with endogenous proteins.
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Affiliation(s)
- Ying Yang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China
| | - Shuqin Wang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China
| | - Xingyan Liu
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China
| | - Wenbin Zhang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510000, China
| | - Wenhua Tong
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China
- Key Laboratory of Brewing Biotechnology and Application, Yibin, 644000, China
| | - Huibo Luo
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, 644000, China
- Key Laboratory of Brewing Biotechnology and Application, Yibin, 644000, China
| | - Liming Zhao
- East China University of Science and Technology, Shanghai, 200000, China
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2
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Yu YQ, Chen WQ, Li XH, Liu M, He XH, Liu Y, Jiang FL. Quantum Dots Meet Enzymes: Hydrophobicity of Surface Ligands and Size Do Matter. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3967-3978. [PMID: 36877959 DOI: 10.1021/acs.langmuir.2c03283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Colloidal quantum dots (QDs) are a class of representative fluorescent nanomaterials with tunable, bright, and sharp fluorescent emission, with promising biomedical applications. However, their effects on biological systems are not fully elucidated. In this work, we investigated the interactions between QDs with different surface ligands and different particle sizes and α-chymotrypsin (ChT) from the thermodynamic and kinetic perspectives. Enzymatic activity experiments demonstrated that the catalytic activity of ChT was strongly inhibited by QDs coated with dihydrolipoic acid (DHLA-QDs) with noncompetitive inhibitions, whereas the QDs coated with glutathione (GSH-QDs) had weak effects. Furthermore, kinetics studies showed that different particle sizes of DHLA-QDs all had high suppressive effects on the catalytic activity of ChT. It was found that DHLA-QDs with larger particle sizes had stronger inhibition effects because more ChT molecules were bound onto the surface of QDs. This work highlights the importance of hydrophobic ligands and particle sizes of QDs, which should be considered as the primary influencing factors in the assessment of biosafety. Meanwhile, the results herein can also inspire the design of nano inhibitors.
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Affiliation(s)
- Ying-Qi Yu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Wen-Qi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xiao-Han Li
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Meng Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xiao-Hang He
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Yi Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, P. R. China
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Chemistry, Tiangong University, Tianjin 300387, P. R. China
| | - Feng-Lei Jiang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
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3
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Das A, Das A, Banik BK. Tellurium-based chemical sensors. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The various tellurium-based chemical sensors are described. This article focuses on four types of Tellurium sensors such as CdTe quantum dots-based sensor, Te thin films-based sensor, Te nanostructures or nanoparticles-based sensor, and TeO2-based sensor.
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Affiliation(s)
- Anjaly Das
- National Institute of Electronics & Information Technology , Calicut 673601 , Kerala , India
| | - Aparna Das
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
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4
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Zhang Y, Tian X, Zhang Z, Tang N, Ding Y, Wang Y, Li D. Boronate affinity-based template-immobilization surface imprinted quantum dots as fluorescent nanosensors for selective and sensitive detection of myricetin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:121023. [PMID: 35182922 DOI: 10.1016/j.saa.2022.121023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/01/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
In order to prepare a kind of efficient fluorescence sensors for determination of cis-diol-containing flavonoids, novel imprinted quantum dots for myricetin (Myr) were prepared based on boronate affinity-based template-immobilization surface imprinting. The obtained boronate affinity-based surface imprinted silica (imprinted APBA-functionalized CdTe QDs) was used as recognition elements. The quantum dots were used as signal-transduction materials. Under the optimum conditions, according to fluorescence quenching of imprinted APBA-functionalized CdTe QDs by Myr, the imprinting factor (IF) for Myr was evaluated to be 7.88. The result indicated that the boronate affinity functionalized quantum dots coated with imprinted silica were successfully prepared. The prepared imprinted APBA-functionalized CdTe QDs exhibited good sensitivity and selectivity for Myr. The fluorescence intensity was inversely proportional to the concentration of Myr in the 0.30-40 μM concentration range. And its detection limit was obtained to be 0.08 μM. Using the fluorescence sensors, the detection of Myr in real samples was successfully carried out, and the concentration of Myr in green tea and apple juice samples was evaluated to be 2.26 mg/g and 0.73 mg/g, respectively. The recoveries for the spiked green tea and apple juice samples were 95.2-105.0% and 91.5-111.0%, respectively. This study also provides an efficient fluorescent detection method for cis-diol-containing flavonoids in real samples.
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Affiliation(s)
- Yansong Zhang
- School of Food and Drug, Luoyang Normal University, Luoyang, 471934, China
| | - Xiping Tian
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Zixin Zhang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Na Tang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Yihan Ding
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Yipei Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China
| | - Daojin Li
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P. R. China.
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5
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Spanu D, Binda G, Dossi C, Monticelli D. Biochar as an alternative sustainable platform for sensing applications: A review. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105506] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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6
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Lu C, Liu Y, Wen Q, Liu Y, Wang Y, Rao H, Shan Z, Zhang W, Wang X. Ratiometric fluorescence assay for L-Cysteine based on Fe-doped carbon dot nanozymes. NANOTECHNOLOGY 2020; 31:445703. [PMID: 32659751 DOI: 10.1088/1361-6528/aba578] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, a ratiometric fluorescence method based on nanozyme was fabricated to determine L-Cysteine. Taking silkworm feces as a carbon source, together with Fe3+, Fe-doped carbon dots (Fe-CDs) were synthesized through a hydrothermal method. Fe-CDs were able to oxidize the enzyme substrate o-phenylenediamine (OPD) to produce oxidized OPD (Ox-OPD) when H2O2 coexisted with them. Based on the fluorescence property of Fe-CDs and Ox-OPD, a dual-emission system was built. Since L-Cysteine contains reductive thiols that can inhibit the production of Ox-OPD, the addition of L-Cysteine caused a decrease in the fluorescence intensity of Ox-OPD. The results showed that the ratio of fluorescence intensities at 450 and 560 nm (I450/I560) varied linearly with the concentration of L-Cysteine in the range of 0.25-90 μM and the limit of detection is as low as 0.047 μM. Furthermore, using this ratiometric fluorescence system to determine L-Cysteine in serum and tap-water samples, average recoveries were evaluated to reach 98.75%-103.27% with the relative standard deviation of no more than 4.5%. Based on the fluorescence property and nanozyme-like activity, this work provides an inspiration to open a new horizon in using natural carbon source to synthesize CDs and for the application of CDs as a nanozyme.
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Affiliation(s)
- Changfang Lu
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, People's Republic of China
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7
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Pramanik S, Roy S, Bhandari S. Luminescence Enhancement based Sensing of L-Cysteine by Doped Quantum Dots. Chem Asian J 2020; 15:1948-1952. [PMID: 32351051 DOI: 10.1002/asia.202000466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/24/2020] [Indexed: 11/11/2022]
Abstract
The interaction of a presynthesized orange emitting Mn2+ -doped ZnS quantum dots (QDs) with L-Cysteine (L-Cys) led to enhance emission intensity (at 596 nm) and quantum yield (QY). Importantly, the Mn2+ -doped ZnS QDs exhibited high sensitivity towards L-Cys, with a limit of detection of 0.4±0.02 μM (in the linear range of 3.3-13.3 μM) and high selectivity in presence of interfering amino acids and metal ions. The association constant of L-Cys was determined to be 0.36×105 M-1 . The amplified passivation of the surface of Mn2+ -doped ZnS QDs following the incorporation and binding of L-Cys is accounted for the enhancement in their luminescence features. Moreover, the luminescence enhancement-based detection will bring newer dimension towards sensing application.
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Affiliation(s)
- Sabyasachi Pramanik
- Department of Chemistry, National Institute of Technology Sikkim, Sikkim, 737139, India
| | - Shilaj Roy
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Satyapriya Bhandari
- Physics Discipline, Indian Institute of Technology Gandhinagar, Gujrat, 382355, India
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8
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Dhar S, Sen B, Mukhopadhyay SK, Mukherjee T, Chattopadhyay AP, Pramanik S. CdS quantum dots embedded in PVP: Inorganic phosphate ion sensing in real sample and its antimicrobial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 234:118256. [PMID: 32217451 DOI: 10.1016/j.saa.2020.118256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
Polyvinyl-pyrrolidone capped spherical cadmium sulphide quantum dots (CdS-PVP QDs), 2-6 nm in size, were developed as a selective turn-on fluorescence nanosensor for monohydrogen phosphate ion (HPO42-) in aqueous medium. Fluorescence intensity of CdS-PVP QDs significantly increased with addition of HPO42- ions, whereas the other common inorganic ions had very little effect on the fluorescence intensity. The proposed sensor may be efficiently used for the detection of HPO42- ions at a low level of concentration up to 213 nM in real urine sample. Cell imaging study indicates that the CdS-PVP QDs are cell permeable and can detect the intracellular distribution of HPO42- ions under fluorescence microscope. The CdS-PVP QDs showed considerable activity against Staphylococcus aureus also.
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Affiliation(s)
- Swastika Dhar
- Department of Chemistry, Kalyani University, Kalyani, Nadia 741235, India
| | - Buddhadeb Sen
- Department of Chemistry, The University of Burdwan, Burdwan 713104, India
| | | | - Trinetra Mukherjee
- Department of Microbiology, The University of Burdwan, , Burdwan 713104, India
| | | | - Sadhan Pramanik
- Department of Chemistry, Hooghly Womens College, Hooghly 712103, India
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9
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Zhou N, Shi Y, Sun C, Zhang X, Zhao W. Carbon quantum dot-AgOH colloid fluorescent probe for selective detection of biothiols based on the inner filter effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117847. [PMID: 31818643 DOI: 10.1016/j.saa.2019.117847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 11/21/2019] [Accepted: 11/23/2019] [Indexed: 06/10/2023]
Abstract
Here, we present a selective and sensitive fluorescent probe for the detection and distinction of biothiols, such as glutathione (GSH) and cysteine (Cys). The adsorbance of Cys onto the surface of AgOH colloid could result in enhanced absorbance from 250 to 400 nm in the UV-vis absorption spectrum, while the addition of GSH could dissolve the AgOH colloid resulting in no change in the UV-vis absorption spectrum. Utilizing these different phenomena, two fluorescent probes were established based on the inner filter effect (IFE). The first probe, the "CDs-AgOH colloid" fluorescent probe, was used to quantitatively analyze Cys over a linear concentration range from 33 to 317 μM and a detection limit of 7.2 μM. The second probe, the "CDs-AgOH colloid-Cys" fluorescent probe, was used to quantitatively analyze GSH, with a detection limit down to 3.6 μM, and a linear range of detection of approximately 16.7 to 100 μM. The fluorescent probes were successfully applied for the detection of GSH in a fetal bovine serum (FBS) sample. Based on these results, IFE is considered to be an effective way to distinguish GSH and Cys.
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Affiliation(s)
- Nan Zhou
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China
| | - Yanping Shi
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China
| | - Chao Sun
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China
| | - Xingwei Zhang
- Department of Chemistry, Northeast Agricultural University, Harbin 150025, China
| | - Wei Zhao
- Department of Physiology, Hei Longjiang University of Chinese Medicine, Harbin 150040, Hei Longjiang Province, China.
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10
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Li D, Zhai S, Song R, Liu Z, Wang W. Determination of cis-diol-containing flavonoids in real samples using boronate affinity quantum dots coated with imprinted silica based on controllable oriented surface imprinting approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117542. [PMID: 31685427 DOI: 10.1016/j.saa.2019.117542] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 05/11/2023]
Abstract
Novel boronate affinity imprinted quantum dots (BA-CdTe@MIPs QDs) were used to develop a selective and sensitive fluorescent nanosensor for determination of cis-diol-containing flavonoids such as quercetin (Qu), baicalein (Bai) and luteolin (Lut) based on controllable oriented surface imprinting approach. The boronate affinity imprinted silica was used as recognition elements. Under the optimum conditions, the imprinting factor (IF) for Qu, Bai and Lut was evaluated to be 9.42, 6.58 and 10.91, respectively. The results indicated that the boronate affinity quantum dots coated with imprinted silica were successfully prepared. The obtained BA-CdTe@MIPs QDs provided high selectivity and high sensitivity for cis-diol-containing flavonoids such as quercetin and luteolin. The BA-CdTe@MIPs QDs exhibited linear decrease in fluorescence intensity with the increase of concentration of quercetin in the 0.05-25 μM concentration range. The detection limit (LOD) is evaluated to be 0.02 μM. The obtained fluorescent nanosensor could be successfully applied to efficient detection of cis-diol-containing flavonoids in onion skin and human urine samples. The recoveries for the spiked onion skin and urine samples were evaluated to be 83.50-104.00% and 86.67-105.00%, respectively. Clearly, this study provides a rapid and efficient fluorescent detection tool for cis-diol-containing flavonoids in real samples.
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Affiliation(s)
- Daojin Li
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, PR China.
| | - Simeng Zhai
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, PR China
| | - Rumeng Song
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, PR China
| | - Zheyao Liu
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, PR China
| | - Weizhou Wang
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, PR China
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11
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Ou Q, Tawfik SM, Zhang X, Lee YI. Novel “turn on–off” paper sensor based on nonionic conjugated polythiophene-coated CdTe QDs for efficient visual detection of cholinesterase activity. Analyst 2020; 145:4305-4313. [DOI: 10.1039/d0an00924e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel conjugated polythiophene (CP) compound was successfully combined with CdTe quantum dots to improve their selectivity and sensitivity for the efficient visual detection of AChE activity via the color variation of CdTe/CP.
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Affiliation(s)
- Qi Ou
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
- College of Materials and Chemistry & Chemical Engineering
| | - Salah M. Tawfik
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
- Department of Petrochemicals
| | - Xinfeng Zhang
- College of Materials and Chemistry & Chemical Engineering
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Yong-Ill Lee
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
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12
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High Sensitivity Detection of Copper Ions in Oysters Based on the Fluorescence Property of Cadmium Selenide Quantum Dots. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7040047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cadmium selenide (CdSe) quantum dots (QDs) were synthesized by water phase synthesis method using 3-mercaptopropionic acid (3-MPA) as a stabilizer, and they were applied to the detection of copper ions (Cu2+). The results showed that CdSe QDs have excellent selectivity and sensitivity toward Cu2+. The fluorescence intensity of CdSe QDs decreased with the increase of Cu2+ concentration. The linear range was from 30 nM to 3 μM, and the detection limit was 30 nM. Furthermore, CdSe QDs were used for detecting the concentration of Cu2+ in oysters. The content of Cu2+ was 40.91 mg/kg, which was close to the one measured via flame atomic absorption spectrometry (FAAS), and the relative error was 1.81%. Therefore, CdSe QDs have a wide application prospect in the rapid detection of copper ions in food.
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13
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Liu X, Dong L, Wang L, Xu H, Gao S, Zhong L, Zhang S, Jiang T. 2-Aminopurine modified DNA probe for rapid and sensitive detection of l-cysteine. Talanta 2019; 202:520-525. [DOI: 10.1016/j.talanta.2019.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/15/2019] [Accepted: 05/02/2019] [Indexed: 02/09/2023]
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14
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Li JJ, Qiao D, Zhao J, Weng GJ, Zhu J, Zhao JW. Fluorescence turn-on sensing of L-cysteine based on FRET between Au-Ag nanoclusters and Au nanorods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 217:247-255. [PMID: 30947133 DOI: 10.1016/j.saa.2019.03.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/09/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
The applications of metallic nanoclusters and nanoparticles in biological sensing have attracted special attention owing to their optical interaction based on fluorescence and surface plasmon resonance (SPR). In this work, we designed a fluorescent nanoprobe for the determination of L-cysteine (L-Cys) based on fluorescence resonance energy transfer (FRET) from gold‑silver bimetallic nanoclusters (Au-Ag NCs) to gold nanorods (AuNRs). Firstly, the negatively charged Au-Ag NCs protected by bovine serum albumin (BSA) are directly adsorbed on the surface of the positively charged AuNRs through electrostatic interaction, and the FRET effect leads to distinct fluorescence quenching of Au-Ag NCs at 615nm. The SPR wavelength of AuNRs is dependent on the aspect ratio, so the SPR of AuNRs could be tuned to have a better spectral overlap with fluorescence of Au-Ag NCs, which enhances the fluorescence quenching effect. Because the SH group of L-Cys has an affinity with gold, the addition of L-Cys can result in the release of Au-Ag NCs from the surface of AuNRs via forming AuS bonds. Thus, the introduction of L-Cys could effectively restore the fluorescence emission of the AuNRs/Au-Ag NCs system because of the restraint of FRET effect. Under the optimized conditions, the fluorescence recovery of AuNRs/Au-Ag NCs probe exhibits a linear response to L-Cys concentration ranging from 5 to 100μM, and the corresponding theoretical detection limit (LOD) is 1.73μM. Meanwhile, this method displays excellent sensitivity and selectivity for L-Cys over other amino acids, and it has been successfully applied to detect L-Cys in real samples.
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Affiliation(s)
- Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Dan Qiao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jing Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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15
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Mehta SM, Mehta S, Muthurajan H, D'Souza JS. Vertical flow paper-based plasmonic device for cysteine detection. Biomed Microdevices 2019; 21:55. [PMID: 31203431 DOI: 10.1007/s10544-019-0399-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cystinuria, is an autosomal recessive genetic disorder involving increasingly high levels of poorly soluble cysteine in urine leading to formation of stones. Developing a facile, low-cost, point-of-care and selective sensor for diagnosis of cysteine is imperative. Accordingly, for the detection of cysteine, the present study demonstrates an inexpensive colorimetric, paper-based vertical flow plasmonic micro-well device with a two-minute turn-around time. The method encompasses the use of microbially-synthesized silver nanoparticles (AgNPs) that change from light brown / yellow to dark brown upon binding with Sulphur present in cysteine. This technique allows for visual detection up to 1 × 10-5 mM cysteine and can be easily offered as a rapid diagnostic test even at setups with minimal resources.
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Affiliation(s)
- Sourabh M Mehta
- National Center for Nanosciences and Nanotechnology, University of Mumbai, Vidyanagari Campus, Kalina, Santacruz (East), Mumbai, Maharashtra, 400098, India.,IITB-Monash Research Academy, Powai, Mumbai, 400076, India
| | - Shraddha Mehta
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidya Nagari, Kalina campus, Santacruz (East), Mumbai, 400098, India
| | - Harries Muthurajan
- National Center for Nanosciences and Nanotechnology, University of Mumbai, Vidyanagari Campus, Kalina, Santacruz (East), Mumbai, Maharashtra, 400098, India
| | - Jacinta S D'Souza
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidya Nagari, Kalina campus, Santacruz (East), Mumbai, 400098, India.
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16
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Disposable electrochemical sensor based on copper-electrodeposited screen-printed gold electrode and its application in sensing l-Cysteine. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.08.140] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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On-off-on luminescent pyrophosphate probe based on the use of Mn-doped ZnS quantum dots and using Eu(III) as a mediator. Mikrochim Acta 2018; 185:480. [PMID: 30259119 DOI: 10.1007/s00604-018-3003-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 09/09/2018] [Indexed: 01/12/2023]
Abstract
A selective phosphorescent on-off-on probe with long decay lifetime has been designed for the detection of pyrophosphate ions (PPi). The detection scheme is based on the use of europium(III)-modulated Mn(II)-doped ZnS quantum dots capped with N-acetyl-L-cysteine. Both the aggregation of quantum dots and electron transfer induced by Eu(III) ions cause phosphorescence to be quenched ("off" state). Phosphorescence is, however, restored on addition of PPi to the system ("on" state). The effect is attributed to the removal of Eu(III) from the carboxy groups on the surface of the quantum dots owing to the stronger interaction between PPi and Eu(III). A linear relationship exists between phosphorescence intensity (best measured at excitation/emission wavelengths of 316/594 nm) and PPi concentration in the 400 nM to 6000 nM with a detection limit of 145 nM. An additional attractive feature is provided by the long-lived phosphorescence (1920 μs) of the quantum dots. It can be used to eliminate interference by short-lived fluorescence in biological samples by performing time resolved measurements. The probe was applied to the determination of PPi in spiked in urine samples and gave recoveries in the range from 98 to 105% with RSDs of <2.0%. Graphical abstract Schematic of a long-lived phosphorescent on-off-on probe for the sensitive and selective detection of pyrophosphate ions (PPi). It is based on the use of Eu(III)-modulated Mn(II)-doped ZnS quantum dots (QDs). Phosphorescence is quenched of QDs after the addition of Eu3+but restored after the addition of PPi.
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18
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Tsogas GZ, Kappi FA, Vlessidis AG, Giokas DL. Recent Advances in Nanomaterial Probes for Optical Biothiol Sensing: A Review. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1329833] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- George Z. Tsogas
- Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Foteini A. Kappi
- Department of Chemistry, University of Ioannina, Ioannina, Greece
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19
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Song P, Ma H, Meng L, Wang Y, Nguyen HV, Lawrence NS, Fisher AC. Fourier transform large amplitude alternating current voltammetry investigations of the split wave phenomenon in electrocatalytic mechanisms. Phys Chem Chem Phys 2017; 19:24304-24315. [PMID: 28849830 DOI: 10.1039/c7cp03510a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fourier transform large amplitude alternating current voltammetry (FTACV) studies are reported on an electrocatalytic (EC') mechanistic system which exhibits split wave behavior on both macro- and micro-size working electrodes. The electrochemical characteristics of the EC' mechanism were analysed using the fundamental to fourth harmonic components deduced by the Fourier transform algorithm. The effects of the sinusoidal frequencies of the applied potential, electrode geometry and substrate concentrations are investigated. The split wave phenomenon was observed and explored particularly.
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Affiliation(s)
- Peng Song
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
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20
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Development of Fluorescent FRET Probes for "Off-On" Detection of L-Cysteine Based on Gold Nanoparticles and Porous Silicon Nanoparticles in Ethanol Solution. SENSORS 2017; 17:s17030520. [PMID: 28273879 PMCID: PMC5375806 DOI: 10.3390/s17030520] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/20/2017] [Accepted: 02/28/2017] [Indexed: 12/26/2022]
Abstract
A new type of fluorescence “off-on” probe was designed for L-Cysteine (L-Cys) based on the fluorescence resonance energy transfer (FRET) between negatively charged amino-capped porous silicon nanoparticles (SiNPs) and positively charged citrate-stabilized Au nanoparticles (AuNPs). In this proposed FRET immunosensor, novel water-soluble amino-conjugated porous SiNPs in ethanol with excellent photoluminescence properties act as the energy donor. Excellent quenching efficiency between SiNPs-ethanol and citrate-stabilized AuNPs by electrostatic interaction via FRET provides an ideal “off-state” (turn-off). The addition of L-Cys leads to releasing the adsorbed AuNPs from the surface of SiNPs and hence the fluorescence emission of SiNPs-ethanol is restored (turn-on), which means the coordination ability of the thiols with AuNPs is stronger than that of the electrostatic interaction. The fluorescence intensity of SiNPs-AuNPs in ethanol is sensitive to L-Cys, and such a restored fluorescence is proportional to the concentration of L-Cys. The method will broadly benefit the development of a new thiol biosensor based on nanostructured porous materials, and the proposed procedure is also expected to develop a variety of functional nanoparticles to form other novel kinds of nanosensors.
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21
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Rodzik Ł, Lewandowska-Łańcucka J, Szuwarzyński M, Szczubiałka K, Nowakowska M. Novel fluorescent CdTe quantum dot-thymine conjugate-synthesis, properties and possible application. NANOTECHNOLOGY 2017; 28:045701. [PMID: 27977416 DOI: 10.1088/1361-6528/28/4/045701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel, highly fluorescent cadmium telluride quantum dots conjugated with thymine and stabilized with thioglycolic acid were obtained and characterized. Successful formation of the conjugate was confirmed by elemental analysis, and UV-vis, fluorescence and Fourier transform infrared spectroscopies. Crystal structure and composition of the conjugates were characterized with xray diffraction and x-ray photoelectron spectroscopy. The size of the conjugates was 4-6 nm as demonstrated using atomic force microscopy and high resolution transmission electron microscopy imaging. The plasmon resonance fluorescence band at 540 nm on excitation at 351 nm was observed for these nanoparticles. The intensity of this band increased with the increase in the amount of conjugated thymine with no shift in its position. Based on the fluorescence measurements it was found that the CdTe-thymine conjugate interacted efficiently and selectively not only with adenine, a nucleobase complementary to thymine, but also with adenine-containing modified nucleosides, i.e., 5'-deoxy-5'-(methylthio)adenosine and 2'-O-methyladenosine, the urinary tumor markers which allow monitoring of the disease progression. To the best of our knowledge, as yet, there have been no studies presented in literature on that type of the interaction with CdTe-thymine conjugates. Therefore, the system presented can be considered as a working component of a selective adenine/adenosine biosensor with potential application in cancer diagnosis.
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Affiliation(s)
- Łucja Rodzik
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
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22
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Durán GM, Abellán C, Contento AM, Ríos Á. Discrimination of penicillamine enantiomers using β-cyclodextrin modified CdSe/ZnS quantum dots. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2074-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Xu W, Li T, Huang W, Luan Y, Yang Y, Li S, Yang W. A magnetic fluorescence molecularly imprinted polymer sensor with selectivity for dibutyl phthalate via Mn doped ZnS quantum dots. RSC Adv 2017. [DOI: 10.1039/c7ra09145a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, magnetic quantum dots molecularly imprinted polymers were synthesized, which were based on ZnS and magnetic Fe3O4.
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Affiliation(s)
- Wanzhen Xu
- School of the Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Tao Li
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Weihong Huang
- School of the Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Yu Luan
- Zhenjiang Institute for Drug Control of Jiangsu Province
- Zhenjiang 212003
- China
| | - Yanfei Yang
- Zhenjiang Institute for Drug Control of Jiangsu Province
- Zhenjiang 212003
- China
| | - Songjun Li
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Wenming Yang
- Institute of Polymer Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013
- China
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24
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Bouri M, Salghi R, Ríos A, Zougagh M. Fluorescence Determination of L-Cysteine in Wound Dressings by Fluoroscein Coated Gold Nanoparticles. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1098655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Wang J, Liu HB, Tong Z, Ha CS. Fluorescent/luminescent detection of natural amino acids by organometallic systems. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.05.008] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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26
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Liu S, Zhao N, Cheng Z, Liu H. Amino-functionalized green fluorescent carbon dots as surface energy transfer biosensors for hyaluronidase. NANOSCALE 2015; 7:6836-42. [PMID: 25807038 DOI: 10.1039/c5nr00070j] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Amino-functionalized fluorescent carbon dots have been prepared by hydrothermal treatment of glucosamine with excess pyrophosphate. The produced carbon dots showed stabilized green emission fluorescence at various excitation wavelengths and pH environments. Herein, we demonstrate the surface energy transfer between the amino-functionalized carbon dots and negatively charged hyaluronate stabilized gold nanoparticles. Hyaluronidase can degrade hyaluronate and break down the hyaluronate stabilized gold nanoparticles to inhibit the surface energy transfer. The developed fluorescent carbon dot/gold nanoparticle system can be utilized as a biosensor for sensitive and selective detection of hyaluronidase by two modes which include fluorescence measurements and colorimetric analysis.
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Affiliation(s)
- Siyu Liu
- Institute of Molecular Medicine, College of Life and Health Sciences, Northeastern University, Shenyang 110000, China.
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27
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β-Cyclodextrin coated CdSe/ZnS quantum dots for vanillin sensoring in food samples. Talanta 2015; 131:286-91. [DOI: 10.1016/j.talanta.2014.07.100] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/28/2014] [Accepted: 07/31/2014] [Indexed: 11/24/2022]
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28
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Lan M, Zhang J, Chui YS, Wang H, Yang Q, Zhu X, Wei H, Liu W, Ge J, Wang P, Chen X, Lee CS, Zhang W. A recyclable carbon nanoparticle-based fluorescent probe for highly selective and sensitive detection of mercapto biomolecules. J Mater Chem B 2015; 3:127-134. [DOI: 10.1039/c4tb01354a] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hg2+quenched CNPs (CNP-Hg2+) as a highly sensitive and selective reversible probe for the detection of mercapto biomolecules in aqueous solutions and in living cells.
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29
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Liu FF, Yu Y, Lin BX, Hu XG, Cao YJ, Wu JZ. Visualization of hormone binding proteins in vivo based on Mn-doped CdTe QDs. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 131:9-16. [PMID: 24815196 DOI: 10.1016/j.saa.2014.04.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 04/09/2014] [Accepted: 04/13/2014] [Indexed: 06/03/2023]
Abstract
Daminozide (B9) is a growth inhibitor with important regulatory roles in plant growth and development. Locating and quantifying B9-binding proteins in plant tissues will assist in investigating the mechanism behind the signal transduction of B9. In this study, red fluorescent Mn-doped CdTe quantum dots (CdTeMn QDs) were synthesized by a high-temperature hydrothermal process. Since CdTeMn QDs possess a maximum fluorescence emission peak at 610nm, their fluorescence properties are more stable than those of CdTe QDs. A B9-CdTeMn probe was synthesized by coupling B9 with CdTeMn QDs. The fluorescence intensity of the probe is double that of CdTeMn QDs; its fluorescence stability is also superior under different ambient conditions. The probe retains the biological activity of B9 and is unaffected by interference from the green fluorescent protein present in plants. Therefore, we used this probe to label B9-binding proteins selectively in root tissue sections of mung bean seedlings. These proteins were observed predominantly on the surfaces of the cell membranes of the cortex and epidermal parenchyma.
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Affiliation(s)
- Fang fei Liu
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
| | - Ying Yu
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China.
| | - Bi xia Lin
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
| | - Xiao gang Hu
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
| | - Yu juan Cao
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
| | - Jian zhong Wu
- School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
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30
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Durán GM, Plata MR, Zougagh M, Contento AM, Ríos Á. Microwave-assisted synthesis of water soluble thiol capped CdSe/ZnS quantum dots and its interaction with sulfonylurea herbicides. J Colloid Interface Sci 2014; 428:235-41. [DOI: 10.1016/j.jcis.2014.04.050] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 04/17/2014] [Accepted: 04/25/2014] [Indexed: 11/28/2022]
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31
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Chao MR, Hu CW, Chen JL. Fluorescent turn-on detection of cysteine using a molecularly imprinted polyacrylate linked to allylthiol-capped CdTe quantum dots. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1209-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Huang S, Zhu F, Qiu H, Xiao Q, Zhou Q, Su W, Hu B. A sensitive quantum dots-based "OFF-ON" fluorescent sensor for ruthenium anticancer drugs and ctDNA. Colloids Surf B Biointerfaces 2014; 117:240-7. [PMID: 24657609 DOI: 10.1016/j.colsurfb.2014.02.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 12/11/2022]
Abstract
In this contribution, a simple and sensitive fluorescent sensor for the determination of both the three ruthenium anticancer drugs (1 to 3) and calf thymus DNA (ctDNA) was established based on the CdTe quantum dots (QDs) fluorescence "OFF-ON" mode. Under the experimental conditions, the fluorescence of CdTe QDs can be effectively quenched by ruthenium anticancer drugs because of the surface binding of these drugs on CdTe QDs and the subsequent photoinduced electron transfer (PET) process from CdTe QDs to ruthenium anticancer drugs, which render the system into fluorescence "OFF" status. The system can then be "ON" after the addition of ctDNA which brought the restoration of CdTe QDs fluorescence intensity, since ruthenium anticancer drugs broke away from the surface of CdTe QDs and inserted into double helix structure of ctDNA. The fluorescence quenching effect of the CdTe QDs-ruthenium anticancer drugs systems was mainly concentration dependent, which could be used to detect three ruthenium anticancer drugs. The limits of detection were 5.5 × 10(-8) M for ruthenium anticancer drug 1, 7.0 × 10(-8) M for ruthenium anticancer drug 2, and 7.9× 10(-8) M for ruthenium anticancer drug 3, respectively. The relative restored fluorescence intensity was directly proportional to the concentration of ctDNA in the range of 1.0 × 10(-8) M ∼ 3.0 × 10(-7) M, with a correlation coefficient (R) of 0.9983 and a limit of detection of 1.1 × 10(-9) M. The relative standard deviation (RSD) for 1.5 × 10(-7) M ctDNA was 1.5% (n = 5). There was almost no interference to some common chemical compounds, nucleotides, amino acids, and proteins. The proposed method was applied to the determination of ctDNA in three synthetic samples with satisfactory results. The possible reaction mechanism of CdTe QDs fluorescence "OFF-ON" was further investigated. This simple and sensitive approach possessed some potential applications in the investigation of interaction between drug molecules and DNA.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Fawei Zhu
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Hangna Qiu
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Qi Xiao
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Quan Zhou
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China
| | - Wei Su
- College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning 530001, PR China.
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University), Ministry of Education, China
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33
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“Turn off–on” fluorescent sensor for platinum drugs-DNA interactions based on quantum dots. Biosens Bioelectron 2014; 52:29-35. [DOI: 10.1016/j.bios.2013.08.031] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/18/2013] [Accepted: 08/19/2013] [Indexed: 01/11/2023]
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34
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Huang S, Zhu F, Xiao Q, Su W, Sheng J, Huang C, Hu B. A CdTe/CdS/ZnS core/shell/shell QDs-based “OFF–ON” fluorescent biosensor for sensitive and specific determination ofl-ascorbic acid. RSC Adv 2014. [DOI: 10.1039/c4ra08169b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Herein we report a quantum dots (QDs)-based “OFF–ON” fluorescent biosensor for the sensitive and specific determination ofl-ascorbic acid.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Fawei Zhu
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Qi Xiao
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Wei Su
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Jiarong Sheng
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Chusheng Huang
- College of Chemistry and Life Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
- P. R. China
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35
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Shi Y, Jiang S, Zhou K, Wang B, Wang B, Gui Z, Hu Y, Yuen RKK. Facile preparation of ZnS/g-C3N4nanohybrids for enhanced optical properties. RSC Adv 2014. [DOI: 10.1039/c3ra44256j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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36
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Wei F, Wu Y, Xu G, Gao Y, Yang J, Liu L, Zhou P, Hu Q. Molecularly imprinted polymer based on CdTe@SiO2 quantum dots as a fluorescent sensor for the recognition of norepinephrine. Analyst 2014; 139:5785-92. [DOI: 10.1039/c4an00951g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent sensor with recognition ability for norepinephrine was simply prepared and actually used to determine norepinephrine in rat plasma.
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Affiliation(s)
- Fangdi Wei
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Yanzi Wu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Guanhong Xu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Yankun Gao
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Jing Yang
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Liping Liu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Ping Zhou
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
| | - Qin Hu
- School of Pharmacy
- Nanjing Medical University
- Nanjing 211166, China
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37
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Durán GM, Contento AM, Ríos Á. Use of Cdse/ZnS quantum dots for sensitive detection and quantification of paraquat in water samples. Anal Chim Acta 2013; 801:84-90. [DOI: 10.1016/j.aca.2013.09.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/31/2013] [Accepted: 09/03/2013] [Indexed: 01/31/2023]
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38
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Liu Y, Li H, Pei M, Zhang G, Hu L, Han J. A new fluorescence “off–on” chemodosimeter for l-cysteine based on water-soluble polythiophene. Talanta 2013; 115:190-4. [DOI: 10.1016/j.talanta.2013.04.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 04/05/2013] [Accepted: 04/11/2013] [Indexed: 11/16/2022]
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39
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Systematic investigation of interactions between papain and MPA-capped CdTe quantum dots. Mol Biol Rep 2013; 40:5781-9. [DOI: 10.1007/s11033-013-2681-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
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40
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Stepwise injection spectrophotometric determination of cysteine in biologically active supplements and fodders. Microchem J 2013. [DOI: 10.1016/j.microc.2013.04.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Highly selective and sensitive biosensor for cysteine detection based on in situ synthesis of gold nanoparticles/graphene nanocomposites. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.08.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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42
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Chen S, Tian J, Jiang Y, Zhao Y, Zhang J, Zhao S. A one-step selective fluorescence turn-on detection of cysteine and homocysteine based on a facile CdTe/CdS quantum dots–phenanthroline system. Anal Chim Acta 2013; 787:181-8. [DOI: 10.1016/j.aca.2013.05.048] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 05/24/2013] [Accepted: 05/27/2013] [Indexed: 01/02/2023]
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43
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Huang S, Qiu H, Xiao Q, Huang C, Su W, Hu B. A Simple QD–FRET Bioprobe for Sensitive and Specific Detection of Hepatitis B Virus DNA. J Fluoresc 2013; 23:1089-98. [DOI: 10.1007/s10895-013-1238-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 05/14/2013] [Indexed: 01/24/2023]
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Tedsana W, Tuntulani T, Ngeontae W. A highly selective turn-on ATP fluorescence sensor based on unmodified cysteamine capped CdS quantum dots. Anal Chim Acta 2013; 783:65-73. [PMID: 23726101 DOI: 10.1016/j.aca.2013.04.037] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 03/26/2013] [Accepted: 04/17/2013] [Indexed: 11/25/2022]
Abstract
Unmodified cysteamine capped nanocrystalline cadmium sulfide quantum dots (Cys-CdS QDs) were demonstrated as a selective turn-on fluorescence sensor for sensing adenosine-5'-triphosphate (ATP) in aqueous solution for the first time. The fluorescence intensity of the Cys-CdS QDs was significantly enhanced in the presence of ATP. In addition, the fluorescence intensity of the Cys-CdS QDs increased when increasing ATP concentrations. On the other hand, other phosphate metabolites and other tested common anions did not significantly alter the fluorescence intensity of the Cys-CdS QDs. In addition, this sensor showed excellent discrimination of pyrophosphate (PPi) from ATP detection. The proposed sensor could efficiently be used for ATP sensing at very low concentration with LOD of 17 μM with the linear working concentration range of 20-80 μM. The feasibility of the proposed sensor for determining ATP in urine samples was also studied, and satisfactory results were obtained.
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Affiliation(s)
- Wimonsiri Tedsana
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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Simple and sensitive determination of papain by resonance light-scattering with CdSe quantum dots. Colloids Surf B Biointerfaces 2013; 102:146-51. [DOI: 10.1016/j.colsurfb.2012.07.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 07/17/2012] [Accepted: 07/18/2012] [Indexed: 11/18/2022]
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Systematically investigations of conformation and thermodynamics of HSA adsorbed to different sizes of CdTe quantum dots. Colloids Surf B Biointerfaces 2013; 102:76-82. [DOI: 10.1016/j.colsurfb.2012.08.028] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/03/2012] [Accepted: 08/16/2012] [Indexed: 12/19/2022]
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Garg B, Ling YC. Tricyanovinyl substituted calix[4]pyrrole: an old yet new potential chemosensor for biothiols. RSC Adv 2013. [DOI: 10.1039/c3ra40206a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Xiao Q, Huang S, Su W, Chan WH, Liu Y. Facile synthesis and characterization of highly fluorescent and biocompatible N-acetyl-L-cysteine capped CdTe/CdS/ZnS core/shell/shell quantum dots in aqueous phase. NANOTECHNOLOGY 2012; 23:495717. [PMID: 23165590 DOI: 10.1088/0957-4484/23/49/495717] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The synthesis of water-soluble quantum dots (QDs) in aqueous phase has received much attention recently. To date various kinds of QDs such as CdTe, CdSe, CdTe/CdS and CdSe/ZnS have been synthesized by aqueous methods. However, generally poor-quality QDs (photoluminescent quantum yield (PLQY) lower than 30%) are obtained via this method and the 3-mercaptopropionic acid stabilizer is notorious for its toxicity and awful odor. Here we introduce a novel thiol ligand, N-acetyl-L-cysteine, as an ideal stabilizer that is successfully employed to synthesize high-quality CdTe/CdS/ZnS QDs via a simple aqueous phase. The core/shell/shell structures of the CdTe/CdS/ZnS QDs were verified by x-ray photoelectron spectroscopy, energy dispersive x-ray spectroscopy, x-ray powder diffraction and transmission electron microscopy. These QDs not only possess a high PLQY but also have excellent photostability and favorable biocompatibility, which is vital for many biological applications. This type of water-dispersed QD is a promising candidate for fluorescent probes in biological and medical fields.
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Affiliation(s)
- Qi Xiao
- College of Chemistry and Life Sciences, Guangxi Teachers Education University, Nanning 530001, People's Republic of China
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Systematically investigation of interactions between BSA and different charge-capped CdSe/ZnS quantum dots. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.08.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mei J, Wang Y, Tong J, Wang J, Qin A, Sun JZ, Tang BZ. Discriminatory Detection of Cysteine and Homocysteine Based on Dialdehyde-Functionalized Aggregation-Induced Emission Fluorophores. Chemistry 2012. [DOI: 10.1002/chem.201202969] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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