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Khavani M, Mehranfar A, Mofrad MRK. On the interactions of peptides with gold nanoparticles: effects of sequence and size. J Biomol Struct Dyn 2024; 42:4429-4441. [PMID: 37306472 DOI: 10.1080/07391102.2023.2220816] [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: 12/30/2022] [Accepted: 05/28/2023] [Indexed: 06/13/2023]
Abstract
Peptide-based self-assembly and synthesis techniques have emerged as a viable approach to designing active and stable inorganic nanostructures in aqueous media. In the present study, we use all-atom molecular dynamic (MD) simulations to study the interactions of ten short peptides (namely A3, AgBP1, AgBP2, AuBP1, AuBP2, GBP1, Midas2, Pd4, Z1, and Z2) with different gold nanoparticles (of different diameters ranging from 2 to 8 nm). Our MD simulation results imply that the gold nanoparticles have a remarkable effect on the stability and conformational properties of peptides. Moreover, the size of the gold nanoparticles and the type of peptide amino acid sequences play important roles in the stability of the peptide-AuNP complexes. Our results reveal that some amino acids such as Tyr, Phe, Met, Lys, Arg, and Gln have direct contact with the metal surface in comparison with Gly, Ala, Pro, Thr, and Val residues. The peptide adsorption on the surface of the gold nanoparticles is favorable from the energetic viewpoint, in which the van der Waals (vdW) interactions between the peptides and metal surface can be considered as one of the driving forces for the complexation process. The calculated Gibbs binding energies indicate that AuNPs have more sensitivity against the GBP1 peptide in the presence of different peptides. Overall, the results of this study can provide new insight into the peptide interaction with the gold nanoparticles from the molecular viewpoint, which can be important for designing new biomaterials based on the peptides and gold nanoparticles.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mohammad Khavani
- Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California Berkeley, Berkeley, California, USA
| | - Aliyeh Mehranfar
- Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California Berkeley, Berkeley, California, USA
| | - Mohammad R K Mofrad
- Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California Berkeley, Berkeley, California, USA
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Chen JL, Njoku DI, Tang C, Gao Y, Chen J, Peng YK, Sun H, Mao G, Pan M, Tam NFY. Advances in Microfluidic Paper-Based Analytical Devices (µPADs): Design, Fabrication, and Applications. SMALL METHODS 2024:e2400155. [PMID: 38781604 DOI: 10.1002/smtd.202400155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/01/2024] [Indexed: 05/25/2024]
Abstract
Microfluidic Paper-based Analytical Devices (µPADs) have emerged as a new class of microfluidic systems, offering numerous advantages over traditional microfluidic chips. These advantages include simplicity, cost-effectiveness, stability, storability, disposability, and portability. As a result, various designs for different types of assays are developed and investigated. In recent years, µPADs are combined with conventional detection methods to enable rapid on-site detection, providing results comparable to expensive and sophisticated large-scale testing methods that require more time and skilled personnel. The application of µPAD techniques is extensive in environmental quality control/analysis, clinical diagnosis, and food safety testing, paving the way for on-site real-time diagnosis as a promising future development. This review focuses on the recent research advancements in the design, fabrication, material selection, and detection methods of µPADs. It provides a comprehensive understanding of their principles of operation, applications, and future development prospects.
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Affiliation(s)
- Jian Lin Chen
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Demian Ifeanyi Njoku
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
| | - Cui Tang
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
| | - Yaru Gao
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
| | - Jiayu Chen
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
| | - Yung-Kang Peng
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
| | - Hongyan Sun
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
| | - Guozhu Mao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, P. R. China
| | - Min Pan
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
| | - Nora Fung-Yee Tam
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
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Chen H, Luo Y, Cai W, Xu L, Li J, Kong Y. Colorimetric discrimination and spectroscopic detection of tyrosine enantiomers based on melamine induced aggregation of l-cysteine/Au nanoparticles. Talanta 2024; 271:125758. [PMID: 38340415 DOI: 10.1016/j.talanta.2024.125758] [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: 12/15/2023] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Au nanoparticles (AuNPs) are decorated by l-cysteine (L-Cys), and the resultant chiral L-Cys/AuNPs can be used for colorimetric discrimination and spectroscopic detection of the tyrosine (Tyr) enantiomers. Melamine (Mel) can induce the aggregation of the L-Cys/AuNPs through ligand exchange, leading to a distinct color change from wine red to purple. Owing to the same rotatory direction of L-Cys/AuNPs and L-Tyr, the L-Cys/AuNPs exhibit a significantly higher binding affinity toward L-Tyr than D-Tyr, and thus the Mel induced aggregation of the L-Cys/AuNPs is greatly alleviated by the protection from the L-Tyr protective layer. Therefore, the Tyr enantiomers can be simply discriminated by naked eyes. In addition, the absorbance of the aggregated L-Cys/AuNPs at ∼630 nm increases linearly with decreasing concentrations of L-Tyr ranging from 10 nM to 1 mM due to the weakened protection effect from L-Tyr, and thus spectroscopic detection of L-Tyr can also be accomplished by the developed L-Cys/AuNPs with a limit of detection (LOD) of 5.3 nM.
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Affiliation(s)
- Haibo Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Yan Luo
- Hua Lookeng Honors College, Changzhou University, Changzhou, 213164, China
| | - Wenrong Cai
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Laidi Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Junyao Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China.
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China.
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Cho HH, Jung DH, Heo JH, Lee CY, Jeong SY, Lee JH. Gold Nanoparticles as Exquisite Colorimetric Transducers for Water Pollutant Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19785-19806. [PMID: 37067786 DOI: 10.1021/acsami.3c00627] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Gold nanoparticles (AuNPs) are useful nanomaterials as transducers for colorimetric sensors because of their high extinction coefficient and ability to change color depending on aggregation status. Therefore, over the past few decades, AuNP-based colorimetric sensors have been widely applied in several environmental and biological applications, including the detection of water pollutants. According to various studies, water pollutants are classified into heavy metals or cationic metal ions, toxins, and pesticides. Notably, many researchers have been interested in AuNP that detect water pollutants with high sensitivity and selectivity, while offering no adverse environmental issues in terms of AuNP use. This review provides a representative overview of AuNP-based colorimetric sensors for detecting several water pollutants. In particular, we emphasize the advantages of AuNP as colorimetric transducers for water pollutant detection in terms of their low toxicity, high stability, facile processability, and unique optical properties. Next, we discuss the status quo and future prospects of AuNP-based colorimetric sensors for the detection of water pollutants. We believe that this review will promote research and development of AuNP as next-generation colorimetric transducers for water pollutant detection.
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Affiliation(s)
- Hui Hun Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
| | - Do Hyeon Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jun Hyuk Heo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
| | - Chae Yeon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Sang Yun Jeong
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea
- Department of Metabiohealth, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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Chatterjee S, Lou XY, Liang F, Yang YW. Surface-functionalized gold and silver nanoparticles for colorimetric and fluorescent sensing of metal ions and biomolecules. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214461] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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A theoretical approach on the ability of functionalized gold nanoparticles for detection of Cd 2. Sci Rep 2021; 11:23422. [PMID: 34873260 PMCID: PMC8648727 DOI: 10.1038/s41598-021-02933-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 11/24/2021] [Indexed: 12/24/2022] Open
Abstract
Cadmium (Cd) as a toxic element that is widely present in water, soil, and air has important effects on human health, therefore proposing an accurate and selective method for detection of this element is of importance. In this article, by employing full atomistic molecular dynamics (MD) simulations and density functional theory dispersion corrected (DFT-D3) calculations, the effects of 6-mercaptonicotinic acid (MNA) and L-cysteine (CYS) on the stability of gold nanoparticles (AuNPs) and their sensitivity against Cd2+ were investigated. The obtained results indicate that pure AuNPs are not stable in water, while functionalized AuNPs with CYS and MNA groups have considerable stability without aggregation. In other words, the functional groups on the surface of AuNPs elevate their resistance against aggregation by an increase in the repulsive interactions between the gold nanoparticles. Moreover, functionalized AuNPs have considerable ability for selective detection of Cd2+ in the presence of different metal ions. Based on the MD simulation results, MNA-CYS-AuNPs (functionalized AuNPs with both functional groups) have the maximum sensitivity against Cd2+ in comparison with MNA-AuNPs and CYS-AuNPs due to the strong electrostatic interactions. DFT-D3 calculations reveal that the most probable interactions between the metal ions and functional groups are electrostatic, and Cd2+ can aggregate functionalized AuNPs due to strong electrostatic interactions with MNA and CYS groups. Moreover, charge transfer and donor-acceptor analyses show that molecular orbital interactions between the functional groups and Cd2+ can be considered as the driving force for AuNPs aggregation. A good agreement between the theoretical results and experimental data confirms the importance of the molecular modeling methods as a fast scientific protocol for designing new functionalized nanoparticles for application in different fields.
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Yang L, Song Y, Wang L. Multi-emission metal-organic framework composites for multicomponent ratiometric fluorescence sensing: recent developments and future challenges. J Mater Chem B 2021; 8:3292-3315. [PMID: 31829391 DOI: 10.1039/c9tb01931f] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ratiometric fluorescence sensors that are achieved via the ratiometric fluorescence intensity changes of emission peaks based on multi-emission fluorescence probes show a huge advantage. However, the preparation of these multi-emission fluorescence probes is a key challenge, as it is related to having more fluorescence groups with the same excitation but different emission wavelengths, and their assembly is not a simple mixing process. More fluorescent groups or molecules can be assembled into the multi-emission fluorescence probe by covalent bonds and coordination interactions, or by loading in metal-organic frameworks (MOFs). MOFs are excellent candidates for constructing complexes with the capability of multicomponent ratiometric fluorescence sensing, but there are some problems that need to be considered. For example, not all fluorophores can be stably loaded in the MOFs' pores, usually due to the size, surface charge and intrinsic properties of the fluorophore. In turn, it is also related to the structure of the MOF, metal nodes, and properties of the organic ligands. This review first introduces the advantages of the MOF-based multi-component fluorescence sensors, and then discusses the synthesis, classification and application of fluorescent MOFs or MOF composites for multi-component ratiometric fluorescence detection. Particular emphasis is focused on the potential, types and characteristics for sensing and biological applications, and the main challenges and limitations are further explored. This review might be helpful for those researchers interested in the application of multi-component ratiometric fluorescence sensing based on fluorescent MOFs or MOF composites.
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Affiliation(s)
- Li Yang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China.
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Sengan M, Kamlekar RK, Veerappan A. Highly selective rapid colorimetric sensing of Pb 2+ ion in water samples and paint based on metal induced aggregation of N-decanoyltromethamine capped gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118485. [PMID: 32450540 DOI: 10.1016/j.saa.2020.118485] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
Lead is highly toxic. The detection of lead in the environmental bodies is difficult, because it is colourless and odourless. Herein, we report the synthesis of gold nanoparticles (AuNPs) using the interdigitized vesicles formed by N-decanoyltromethamine (NDTM). AuNPs stabilized by NDTM was pink in colour with spherical shape and the size is 29 ± 7 nm. The optical property of the NDTM-AuNPs was explored for the first time to detect toxic chemical, Pb2+. The addition of toxic metal ion Pb2+ to NDTM-AuNPs rapidly (< 1 min) alters the colour from pink to violet due to aggregation, which was confirmed by particle size analyser and TEM. The aggregation induced colour changes were realized via broad spectra in UV-Vis spectroscopy. NDTM-AuNPs showed a selective and sensitive spectrophotometric signal with Pb2+ when compared with other metal ions. The colorimetric change as a function of Pb2+ concentration gave a linear response in the range of 0-30 μM (R2 = 0.9942). The detection limit was found at 10 μM by naked eye and 0.35 μM by spectrophotometry. The proposed method was successfully applied for the determination of Pb2+ ions in tap water and sewage water. Moreover, as a proof of concept, the NDTM-AuNPs sensor system was applied for the detection of lead in commercial paints. The results of the quantitative estimation of lead in paints by NDTM-AuNPs colorimetric sensor were as good as the standard method, atomic absorption spectroscopy.
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Affiliation(s)
- Megarajan Sengan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India
| | - Ravi Kanth Kamlekar
- Department of Chemistry, School of Advanced Sciences, VIT, Vellore, Tamil Nadu 632014, India
| | - Anbazhagan Veerappan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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Wang X, Kong L, Gan Y, Liang T, Zhou S, Sun J, Wan H, Wang P. Microfluidic-based fluorescent electronic eye with CdTe/CdS core-shell quantum dots for trace detection of cadmium ions. Anal Chim Acta 2020; 1131:126-135. [DOI: 10.1016/j.aca.2020.06.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 01/02/2023]
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Alzard RH, Meyer H, Benyettou F, Trabolsi A, Saleh N. pH-controlled preferential binding of cucurbit[7]uril-coated iron-oxide nanoparticles to 6-mercaptonicotinic acid for fluorescent detection of cadmium ions in the solid state. Mikrochim Acta 2020; 187:386. [PMID: 32535720 DOI: 10.1007/s00604-020-04354-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 05/23/2020] [Indexed: 11/24/2022]
Abstract
A host-guest complex of 6-mercaptonicotinic acid (MNA) and cucurbit[7]uril (CB7) was prepared and conjugated to γ-Fe3O4 nanoparticles (NPs) to detect toxic cadmium ions in water as a solid-state sensor. The formation of an inclusion host-guest complex with CB7 was confirmed by UV-vis absorption and proton NMR spectroscopy. CB7 preferentially binds the protonated MNA form compared to the neutral form, demonstrated by a binding constant for the protonated form that is four orders of magnitude higher than that of the neutral form. An increase in the pKa of MNA by 1.2 units was demonstrated after the addition of CB7, which further supports preferential binding between MNA and CB7. The NMR results confirm binding to cadmium via the carboxylic acid moiety. Stationary and time-resolved fluorescence results, in solution and in the solid state, indicate that cadmium and CB7 cause a blue shift in the MNA emission bands and extend its excited-state lifetime due to dissociation of the MNA dimer. In the solid state, switching the emission signals between Cd2+-MNA/CB7NPs (ON state) and MNAH+/CB7NPs (OFF state) was achieved by controlling the pH. An efficient, regenerable, and stable sensor device was fabricated for sensitive and selective detection of Cd2+ in contaminated water samples. Graphical abstract Regeneration of MNA/CB7 nanoparticles for the detection of cadmium ions in the solid state by a visible blue emission signal upon suppression of photoinduced electron transfer (PET).
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Affiliation(s)
- Reem H Alzard
- Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Harrison Meyer
- Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Farah Benyettou
- New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Ali Trabolsi
- New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Na'il Saleh
- Department of Chemistry, College of Science, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates.
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Gan T, Zhao N, Yin G, Chen M, Wang X, Hua H. Preconcentration with Chlorella vulgaris combined with energy dispersive X-ray fluorescence spectrometry for rapid determination of Cd in water. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200182. [PMID: 32537220 PMCID: PMC7277290 DOI: 10.1098/rsos.200182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Freshwater green algae Chlorella vulgaris was selected as an adsorbent, and a simple, rapid, economical and environmentally friendly method for the detection of heavy metal Cd in water samples based on preconcentration with C. vulgaris combined with energy dispersive X-ray fluorescence (EDXRF) spectrometry was proposed. Chlorella vulgaris could directly and rapidly adsorb Cd2+ without any pretreatment, and the maximum adsorption efficiency could be obtained when the contact time was 1 min with an optimal pH of 10. The obtained Cd-enriched thin samples after preconcentration with C. vulgaris by suction filtration of reaction solution had very good uniformity, which could be directly measured by EDXRF spectrometry, and the net integral fluorescence intensity of Cd Kα characteristic peak had a very good linear relationship with the initial concentration of Cd in the range of 0.703-74.957 µg ml-1 with a correlation coefficient of 0.9979. When the Cd thin samples with a Cd-enriched region of 15.1 mm in diameter were formed by the developed preconcentration method with suction filtration of 10 ml reaction solution, the detection limit of this method was 0.0654 µg ml-1, which was lower than the maximum allowable discharge concentration of Cd in various industrial wastewaters. The proposed method was simple to operate, and could effectively remove the influence of matrix effect of water samples and effectively improve the sensitivity and stability of EDXRF spectrometry directly detecting heavy metals in water samples, which was successfully applied to detect Cd in real water samples with satisfactory results, and the recoveries ranged from 94.80% to 116.94%. Moreover, this method can be applied to the rapid detection and early warning of excessive Cd in discharged industrial wastewaters. This work will provide a methodological basis for the development of rapid and online monitoring technology and instrument of heavy metal pollutants in water.
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Affiliation(s)
- Tingting Gan
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
| | - Nanjing Zhao
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
| | - Gaofang Yin
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
| | - Min Chen
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Xiang Wang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Hui Hua
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
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Zhou ZQ, Liao YP, Yang J, Huang S, Xiao Q, Yang LY, Liu Y. Rapid ratiometric detection of Cd 2+ based on the formation of ZnSe/CdS quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117795. [PMID: 31753647 DOI: 10.1016/j.saa.2019.117795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 11/10/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Developing simple and sensitive non-aggregation strategy for detecting Cd2+ is necessary for improving the selectivity and sensitivity of probe. Here, we establish a simple, rapid and ratiometric strategy for the recognition of Cd2+ based on the formation of core-shell ZnSe/CdS structure using ZnSe quantum dots (QDs). The transformation from binary ZnSe QDs to core-shell ZnSe/CdS QDs both change the elemental composition and structure of ZnSe QDs, leading to the changes in band gap of ZnSe QDs, which could be observed in the UV-vis spectra. In the detection process, ZnSe QDs only possess absorption peak at 343 nm, the formation of ZnSe/CdS after the addition of Cd2+ leads to the appearance of the new peak at 397 nm, while other heavy metal ions could not cause the appearance of new absorption peak. Therefore, this strategy shows good selectivity for Cd2+ detection. Based on this strategy, the limit of detection (LOD) for Cd2+ is 11 nM by UV-vis spectroscopy with a desirable relation of linearity (R2 = 0.999) between A397/A343 and Cd2+ contents, which is superior to the LOD of most reported nanomaterials. The response time for Cd2+ detection is as short as 60 s, which is suitable for rapid detection. This ratiometric probe has also been applied to the detection of Cd2+ in tap water samples, the recovery of Cd2+ was between 94.9% and 105.6% for tap water samples, indicating the high accuracy of our ratiometric assay. Our strategy not only provided a new method for detecting Cd2+, but also put forward an implication that the band energy changes of QDs caused by heavy metal ions can be applied in the selective and sensitive detection of heavy metal ions.
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Affiliation(s)
- Zhi-Qiang Zhou
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China; Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Yuan-Ping Liao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Jing Yang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Shan Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Li-Yun Yang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China.
| | - Yi Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China; Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; Hubei Province Key Laboratory of Coal Conversion and New Type of Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, PR China.
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13
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Lv J, Liu G, Fan C, Pu S. A highly sensitive fluorescent sensor for Cd 2+ and Zn 2+ based on diarylethene with a pyrene unit. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117581. [PMID: 31670044 DOI: 10.1016/j.saa.2019.117581] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 09/27/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
A novel multifunctional diarylethene fluorescence sensor 1O containing pyrene unit was designed and synthesized. The photochromism and fluorescence photoswitching properties of this diarylethene were studied in detail by irradiation of UV/Vis lights and response of metal ions in acetonitrile solution. Diarylethene fluorescence sensor 1O has high selectivity and sensitivity for the detections of Cd2+ and Zn2+. The limit of detections (LODs) for Cd2+ and Zn2+ were determined to be 1.85 × 10-9 mol L-1 and 7.68 × 10-9 mol L-1, respectively. The binding constants (Ka) of 1O with Cd2+ and Zn2+ in acetonitrile solution were calculated to be 5.8 × 104 mol-1 L and 6.0 × 104 mol-1 L, respectively. The compound 1O responded to the metal ions (Cd2+/Zn2+) to form complexations with 1 : 1 stoichiometry which were verified by Job's plot and MS analysis, respectively. In addition, the fluorescence sensor 1O has been successfully applied to the detection of Cd2+ and Zn2+ in real water samples and processed into test strips for on-site analysis and testing.
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Affiliation(s)
- Junfei Lv
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Congbin Fan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China.
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China.
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14
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Ammonium Pyrrolidine Dithiocarbamate-Modified CdTe/CdS Quantum Dots as a Turn-on Fluorescent Sensor for Detection of Trace Cadmium Ions. SENSORS 2020; 20:s20010312. [PMID: 31935902 PMCID: PMC6982945 DOI: 10.3390/s20010312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/30/2019] [Accepted: 01/02/2020] [Indexed: 01/22/2023]
Abstract
In this work, ammonium pyrrolidine dithiocarbamate (APDC) was used as a surface etchant to modify CdTe/CdS core-shell quantum dots (QDs). The APDC etchant combines with the cadmium ions (Cd2+) on the surface of the QDs, resulting in the formation of surface holes. The formation of these holes changes the QD surface structure, which leads to fluorescence quenching of the QDs. Newly added Cd2+ can selectively recognize and combine with these holes; thus, the fluorescence intensity of the QDs can be restored. The linear response of this turn-on fluorescent sensor was found to be 0-100 μg/L and 100-600 μg/L under the determined optimal conditions, and its limit of detection (LOD) for Cd2+ was 2.642 μg/L (23.5 nmol/L).
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15
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Hu Y, Yue C, Wang J, Zhang Y, Fang W, Dang J, Wu Y, Zhao H, Li Z. Fe–Ni metal–organic frameworks with prominent peroxidase-like activity for the colorimetric detection of Sn2+ ions. Analyst 2020; 145:6349-6356. [DOI: 10.1039/d0an00801j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The synthesized Fe–Ni-MOF could oxidize TMB to produce oxTMB with blue color. The presence of Sn2+ ions could make the oxTMB color lighter, hence colorimetric detection of Sn2+ ions is realized.
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Affiliation(s)
- Ye Hu
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Chaochao Yue
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Jing Wang
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Yuhua Zhang
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Wenhui Fang
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Jiaqi Dang
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Ying Wu
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Hong Zhao
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
| | - Zengxi Li
- School of Chemical Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- PR China
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16
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Ramya S, Shanmugasundaram T, Balagurunathan R. Actinobacterial enzyme mediated synthesis of selenium nanoparticles for antibacterial, mosquito larvicidal and anthelminthic applications. PARTICULATE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1080/02726351.2018.1508098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Suseenthar Ramya
- Actinobacterial Research Laboratory, Department of Microbiology, School of Biosciences, Periyar University, Periyar Palkalai Nagar, Salem, India
| | | | - Ramasamy Balagurunathan
- Actinobacterial Research Laboratory, Department of Microbiology, School of Biosciences, Periyar University, Periyar Palkalai Nagar, Salem, India
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17
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Khavani M, Izadyar M, Housaindokht MR. A combined MD/QM study on the sensing mechanism of Pb2+ by glutathione functionalized gold nanoparticles. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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18
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Qiu J, Li Z, Miao L, Wang H, Zhang Y, Wu S, Zhang Y, Li X, Wu A. Colorimetric detection of Ba2+, Cd2+ and Pb2+ based on a multifunctionalized Au NP sensor. Analyst 2019; 144:5081-5089. [DOI: 10.1039/c9an00836e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A colorimetric method for the detection of three kinds of ions in water with one kind of detection reagent was developed.
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Affiliation(s)
- Jiaoyan Qiu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Zihou Li
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Lijing Miao
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Hongsen Wang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Yuenan Zhang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Shasha Wu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Yujie Zhang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Xing Li
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
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19
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Du J, Hu X, Zhang G, Wu X, Gong D. Colorimetric detection of cadmium in water using L-cysteine Functionalized gold–silver nanoparticles. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1455103] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jiawei Du
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaqing Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland, New Zealand
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20
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Li Y, Luo Q, Hu R, Chen Z, Qiu P. A sensitive and rapid UV–vis spectrophotometry for organophosphorus pesticides detection based on Ytterbium (Yb3+) functionalized gold nanoparticle. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.11.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Singh K, Kukkar D, Singh R, Kukkar P, Kim KH. Exceptionally stable green-synthesized gold nanoparticles for highly sensitive and selective colorimetric detection of trace metal ions and volatile aromatic compounds. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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A highly sensitive colorimetric probe for Cd2+, Hg2+ and ascorbic acid determination based on trithiocyanuric acid-AuNPs. Talanta 2018; 188:266-272. [DOI: 10.1016/j.talanta.2018.05.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/18/2018] [Accepted: 05/24/2018] [Indexed: 01/22/2023]
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23
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Wang SN, Zhu J, Li X, Li JJ, Zhao JW. Fluorescence turn-on sensing of trace cadmium ions based on EDTA-etched CdTe@CdS quantum dot. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 201:119-127. [PMID: 29742486 DOI: 10.1016/j.saa.2018.04.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/18/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
Cadmium-caused environmental pollution and diseases have always been worldwide problems. Thus it is extremely urgent to establish a cheap, rapid, simple and selective detection method for trace cadmium in drinking water. In this study, a fluorescence "turn-on" method based on ethylene diamine tetraacetic acid (EDTA)-etched CdTe@CdS quantum dots (QDs) was designed to detect Cd2+. High resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) were utilized for chemical and structural characterization of the as-prepared QDs. Based on chemical etching of EDTA on the surface of CdTe@CdS QDs, specific Cd2+ recognition sites were produced, and then results in fluorescence quenching. The introduction of Cd2+ could identify these sites and restore the fluorescence of the EDTA-QDs system. Under the optimum conditions, the nanoprobe shows a linear response range from 0.05 to 9 μM with a very low detection limit of 0.032 μM. In addition, the reported fluorescence probe in this work displays a good selectivity for trace Cd2+ over other metal ions and an admirable practicability in real water samples.
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Affiliation(s)
- Si-Nan Wang
- 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.
| | - Xin 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
| | - 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
| | - 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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24
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Lakade AJ, Sundar K, Shetty PH. Gold nanoparticle-based method for detection of calcium carbide in artificially ripened mangoes (Magnifera indica). Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018. [DOI: 10.1080/19440049.2018.1449969] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Ankita Jagannath Lakade
- Department of Food Science and Technology, Pondicherry Central University, Puducherry, India
| | - Kothandapani Sundar
- Department of Food Science and Technology, Pondicherry Central University, Puducherry, India
- Department of Microbiology, PRIST Deemed-to-be-University, Pondicherry Campus, Puducherry, India
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25
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Simon T, Shellaiah M, Steffi P, Sun KW, Ko FH. Development of extremely stable dual functionalized gold nanoparticles for effective colorimetric detection of clenbuterol and ractopamine in human urine samples. Anal Chim Acta 2018; 1023:96-104. [PMID: 29754612 DOI: 10.1016/j.aca.2018.03.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 02/07/2023]
Abstract
New glutamic acid (Glu) and polyethylenimine (PE) functionalized ultra-stable gold nanoparticles (PE-Glu-AuNPs) were developed via a simple NaBH4 reduction method. The low toxicity and biocompatibility of PE-Glu-AuNPs were confirmed via an MTT assay in Raw 264.7 cells. Excitingly, PE-Glu-AuNPs were found to be extremely stable at room temperature up to six months and were utilized in an effective colorimetric naked eye assay of clenbuterol (CLB) and ractopamine (RCT) at pH 5. It was found that the selective assay of CLB and RCT is not affected by any other interferences (such as alanine, phenylalanine, NaCl, CaCl2, threonine, cysteine, glycine, glucose, urea and salbutamol). Furthermore, the detection of these β-agonists can be visually accomplished through change color from wine red to purple blue. Notably, the aggregation induced detection of CLB and RCT was well confirmed through transmission electron microscopy (TEM) and dynamic light scattering (DLS) studies. DLS investigations, clearly showed, that in the presence of CLB and RCT, the initial size of PE-Glu-AuNPs (12.8 ± 8.6 nm) was changed to 84.8 ± 52.3 and 79.5 ± 47.8 nm, respectively, via aggregation. Furthermore, the colorimetric assays of CLB and RCT with PE-Glu-AuNPs were effective starting from CLB and RCT concentrations of 200 nM and 400 nM, respectively, and could be visualized using the naked eyes. Remarkably, UV-vis titrations of PE-Glu-AuNPs with CLB and RCT could be used to well estimate their sub nanomolar detection limits (LODs) via standard deviation and linear fittings. The contribution of surface functional groups that support the analyte recognition was confirmed by fourier-transform infrared spectroscopy (FTIR) analysis. Moreover, the CLB and RCT assays with PE-Glu-AuNPs were supported by examination of human urine samples.
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Affiliation(s)
- Turibius Simon
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan
| | - Muthaiah Shellaiah
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan
| | - Perpectual Steffi
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan
| | - Kien Wen Sun
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan
| | - Fu-Hsiang Ko
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan.
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26
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Poomalai S, Govindaraj TS, Soundrapandian S, Paulraj MS, Enoch IVMV. A new fluorescent chemosensor for cadmium(II) based on a pyrene-appended piperidone derivative and its β-cyclodextrin complex. LUMINESCENCE 2018; 33:538-544. [DOI: 10.1002/bio.3443] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 11/17/2017] [Accepted: 11/19/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Sumathi Poomalai
- R&D Centre; Bharathiar University; Coimbatore Tamil Nadu India
- Department of Chemistry; Muthayammal College of Arts and Science; Namakkal District Tamil Nadu India
| | - Tamil Selvan Govindaraj
- Chemistry Research Laboratory; Karunya Institute of Technology & Sciences; Coimbatore Tamil Nadu India
| | - Suganthi Soundrapandian
- Chemistry Research Laboratory; Karunya Institute of Technology & Sciences; Coimbatore Tamil Nadu India
| | - Mosae Selvakumar Paulraj
- Chemistry Research Laboratory; Karunya Institute of Technology & Sciences; Coimbatore Tamil Nadu India
| | - Israel Vijayaraj Muthu Vijayan Enoch
- Chemistry Research Laboratory; Karunya Institute of Technology & Sciences; Coimbatore Tamil Nadu India
- Nanotoxiology Research Laboratory; Karunya Institute of Technology & Sciences; Coimbatore Tamil Nadu India
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27
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High selective colorimetric detection of Cd2+ ions using cysteamine functionalized gold nanoparticles with cross-linked DL-glyceraldehyde. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3230-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Bahram M, Madrakian T, Alizadeh S. Simultaneous colorimetric determination of morphine and ibuprofen based on the aggregation of gold nanoparticles using partial least square. J Pharm Anal 2017; 7:411-416. [PMID: 29404068 PMCID: PMC5790710 DOI: 10.1016/j.jpha.2017.03.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 03/07/2017] [Accepted: 03/12/2017] [Indexed: 11/26/2022] Open
Abstract
In this work a new method is presented for simultaneous colorimetric determination of morphine(MOR) and ibuprofen(IBU) based on the aggregation of citrate-capped gold nanoparticles (AuNPs). Citrate-capped gold nanoparticles were aggregated in the presence of morphine and ibuprofen. The difference in kinetics of AuNPs aggregation in the presence of morphine / ibuprofen was used for simultaneous analysis of morphine and ibuprofen. The formation and size of synthesized Au NPs and the aggregated forms were monitored by infra-Red (IR) spectroscopy and transmission electron microscopy (TEM) respectively.. By adding morphine or ibuprofen the absorbance was decreased at 520 nm and increased at 620 nm. The difference in kinetic profiles of aggregation was applied for simultaneous analysis of MOR and IBU using partial least square regression as an efficient multivariate calibration method. The number of PLS latent variables was optimized by leave-one-out cross-validation method using predicted residual error sum of square. The proposed model exhibited a high capability in simultaneous prediction of MOR and IBU concentrations in real samples. Our results showed linear ranges of 1.33-33.29 µg/mL (R2=0.9904) and 0.28-6.9 µg/mL (R2=0.9902) for MOR and IBU respectively with low detection limits of 0.15 and 0.03 µg/mL(S/N=5).
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Affiliation(s)
- Morteza Bahram
- Department of Chemistry, Faculty of Science, Urmia University, 5715175976 Urmia, Iran
| | - Tayyebeh Madrakian
- Department of Analytical chemistry, Faculty of Chemistry, Bu-Ali Sina University, 65178638695 Hamadan, Iran
| | - Sakineh Alizadeh
- Department of Analytical chemistry, Faculty of Chemistry, Bu-Ali Sina University, 65178638695 Hamadan, Iran
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30
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Cadmium determination based on silver nanoparticles modified with 1,13-bis(8-quinolyl)-1,4,7,10,13-pentaoxatridecane. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1087-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Li L, Liao L, Ding Y, Zeng H. Dithizone-etched CdTe nanoparticles-based fluorescence sensor for the off–on detection of cadmium ion in aqueous media. RSC Adv 2017. [DOI: 10.1039/c6ra24971j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present work, a new fluorescence probe based on dithizone-etched CdTe nanoparticles was designed for the sensitive and selective detection of cadmium ion in environmental samplesviaa reversible off–on fluorescence mode.
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Affiliation(s)
- Li Li
- Department of Chemistry
- Shanghai University
- Shanghai
- P. R. China
| | - Lanfeng Liao
- Department of Chemistry
- Shanghai University
- Shanghai
- P. R. China
| | - Yaping Ding
- Department of Chemistry
- Shanghai University
- Shanghai
- P. R. China
| | - Hongyan Zeng
- Department of Chemistry
- Shanghai University
- Shanghai
- P. R. China
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32
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Mehta VN, Rohit JV, Kailasa SK. Functionalization of silver nanoparticles with 5-sulfoanthranilic acid dithiocarbamate for selective colorimetric detection of Mn2+ and Cd2+ ions. NEW J CHEM 2016. [DOI: 10.1039/c5nj03454j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A schematic representation of Mn2+ and Cd2+ ion-induced aggregation of SAA-DTC-Ag NPs.
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Affiliation(s)
- Vaibhavkumar N. Mehta
- Applied Chemistry Department
- S. V. National Institute of Technology
- Surat-395 007
- India
| | - Jigneshkumar V. Rohit
- Applied Chemistry Department
- S. V. National Institute of Technology
- Surat-395 007
- India
| | - Suresh Kumar Kailasa
- Applied Chemistry Department
- S. V. National Institute of Technology
- Surat-395 007
- India
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33
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Vellaichamy B, Periakaruppan P. Green synthesized nanospherical silver for selective and sensitive sensing of Cd2+colorimetrically. RSC Adv 2016. [DOI: 10.1039/c6ra04381j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We report here a facile, green and one-pot synthesis of nano-spherical silver (NSS) usingBombax ceibaleaf extract (BCLE) as both a reducing and stabilizing agent.
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34
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Zhu J, Yu YQ, Li JJ, Zhao JW. Colorimetric detection of lead(ii) ions based on accelerating surface etching of gold nanorods to nanospheres: the effect of sodium thiosulfate. RSC Adv 2016. [DOI: 10.1039/c5ra26560f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The lead ion-participated etching of gold nanorods leads to qualitative spectral change from double bands to single band LSPR, which results in a distinct irreversible color change of the gold colloid from blue to red.
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Affiliation(s)
- 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
| | - Yun-Qi Yu
- 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-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
| | - 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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35
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Zheng LQ, Yu XD, Xu JJ, Chen HY. Reversible catalysis for the reaction between methyl orange and NaBH4 by silver nanoparticles. Chem Commun (Camb) 2015; 51:1050-3. [PMID: 25434675 DOI: 10.1039/c4cc07711c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction between MO and NaBH4 catalyzed by Ag NPs has been studied. Ag NPs catalyzed the reduction of MO rapidly, while adding CTAB into the solution caused the regeneration of MO. Thus, reversible catalysis for the reaction between MO and NaBH4 by Ag NPs was discovered for the first time.
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Affiliation(s)
- Li-Qing Zheng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
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Tian J, Zhang Q, Liu S, Yang J, Teng P, Zhu J, Qiao M, Shi Y, Duan R, Hu X. Study on erythrosine-phen-Cd(II) systems by resonance Rayleigh scattering, absorption spectra and their analytical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:15-20. [PMID: 25579798 DOI: 10.1016/j.saa.2014.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 06/04/2023]
Abstract
In pH 7.0-8.0 KH2PO4-Na2HPO4 buffer solution, Cd(II) reacted with 1,10-phenanthroline to form chelate cation [Cd(phen)3]2+, which further reacted with anion of erythrosine to form ternary ion-association complex through electrostatic attraction and hydrophobic effect. This process could result in remarkable absorption spectra change and produce obvious fading reaction at 528 nm. Absorbance change (ΔA) of system was directly proportional to the concentration of Cd(II). Hereby, a highly sensitive spectrophotometric method for the determination of Cd(II) was established. The molar absorption coefficient was 2.29×10(5) L mol(-1) cm(-1) and the detection limit of Cd(II) was 26.5 ng mL(-1). Furthermore, the resonance Rayleigh scattering (RRS) of this system with two peaks located at 371 and 590 nm enhanced significantly, and second-order scattering (SOS) and frequence doubling scattering (FDS) of this system changed notably at 640 and 350 nm, respectively. Under the optimum conditions, the scattering intensities (ΔIRRS, ΔIDWO-RRS, ΔISOS and ΔIFDS) had good linear relationship with the concentration of Cd(II) in certain ranges. The detection limits of Cd(II) were 1.27 ng mL(-1), 1.39 ng mL(-1), 4.03 ng mL(-1), 5.92 ng mL(-1) and 14.7 ng mL(-1) for dual-wavelength overlapping resonance Rayleigh scattering (DWO-RRS), RRS (371 nm), RRS (590 nm), SOS and FDS, respectively. In addition, the suitable reaction conditions and effects of coexisting substances were investigated. The methods had been successfully applied to the determination of Cd(II) in environmental water samples. The recovery range was between 93.0% and 103.0% and the relative standard deviation (RSD) was between 2.5% and 4.3%. The results were in agreement with those obtained from atomic absorption spectroscopy.
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Affiliation(s)
- Jing Tian
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Fuling Environmental Monitoring Center, Fuling, Chongqing 408000, China
| | - Qiqi Zhang
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jidong Yang
- College of Chemical and Environmental Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China
| | - Ping Teng
- Fuling Environmental Monitoring Center, Fuling, Chongqing 408000, China
| | - Jinghui Zhu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Man Qiao
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ying Shi
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ruilin Duan
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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37
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Jin W, Huang P, Wu F, Ma LH. Ultrasensitive colorimetric assay of cadmium ion based on silver nanoparticles functionalized with 5-sulfosalicylic acid for wide practical applications. Analyst 2015; 140:3507-13. [PMID: 25831211 DOI: 10.1039/c5an00230c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Low-level cadmium ion (Cd(2+)) exposure contributes much toward the causation of chronic disease. Due to its low permissible exposure limit, overexposures may occur even in situations where trace quantities of Cd(2+) exist. So far, no effective treatment for Cd(2+) toxicity has been reported. Prevention of further exposure is the most important step in management of patients suggestive of Cd(2+) intoxication. Development of sensors for Cd(2+) is of great interest to ensure early diagnosis and improve management. We propose here a simple, low-cost (0.1$ per sample) yet very sensitive (limit of detection is 3.0 nM) and selective colorimetric assay for rapid (2 min) determination of Cd(2+) based on 5-sulfosalicylic acid functionalized silver nanoparticles (SAA-AgNPs). This method shows excellent selectivity for Cd(2+) over the other 16 metal ions. It is also precise and highly reproducible in determining Cd(2+) in real samples such as tap water, milk, serum, and urine with recoveries ranging from 93 to 110%, indicating the wide practical application to samples suspected of Cd(2+) exposure.
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Affiliation(s)
- Weiwei Jin
- Department of Chemistry, Nanchang University, Nanchang 330031, China.
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38
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Thatai S, Khurana P, Prasad S, Kumar D. Plasmonic detection of Cd 2+ ions using surface-enhanced Raman scattering active core–shell nanocomposite. Talanta 2015; 134:568-575. [DOI: 10.1016/j.talanta.2014.11.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 11/11/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022]
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39
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Miao Q, Wu Z, Hai Z, Tao C, Yuan Q, Gong Y, Guan Y, Jiang J, Liang G. Bipyridine hydrogel for selective and visible detection and absorption of Cd(2+). NANOSCALE 2015; 7:2797-2804. [PMID: 25584838 DOI: 10.1039/c4nr06467d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Herein, we report for the first time the use of bipyridine-based hydrogel for selective and visible detection and absorption of Cd(2+). At low concentrations, hydrogelator 1 was applied for selective detection of Cd(2+) in vitro and in living cells with high sensitivity. In the absence of metal ions, 1 is nonfluorescent at 470 nm. Upon addition of metal ions, 1 selectively coordinates to Cd(2+), causing an 86-fold increase of fluorescence intensity at 470 nm via the chelation enhanced fluorescence (CHEF) effect, as revealed by first-principles simulations. At 1.5 wt% and pH 5.5, 1 self-assembles into nanofibers to form hydrogel Gel I. Since Cd(2+) could actively participate in the hydrogelation and promote the self-assembly, we also successfully applied Gel I for visible detection and absorption of Cd(2+). With these excellent properties, Gel I is expected to be explored as one type of versatile biomaterial for not only environmental monitoring but also for pollution treatment in the near future.
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Affiliation(s)
- Qingqing Miao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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40
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Manjumeena R, Duraibabu D, Rajamuthuramalingam T, Venkatesan R, Kalaichelvan PT. Highly responsive glutathione functionalized green AuNP probe for precise colorimetric detection of Cd2+ contamination in the environment. RSC Adv 2015. [DOI: 10.1039/c5ra12427a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Precise colorimetric detection of Cd2+ using a glutathione functionalized phytosynthesized AuNP probe provides an ecofriendly approach to heavy metal detection.
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41
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Mehta VN, Singhal RK, Kailasa SK. A molecular assembly of piperidine carboxylic acid dithiocarbamate on gold nanoparticles for the selective and sensitive detection of Al3+ion in water samples. RSC Adv 2015. [DOI: 10.1039/c5ra00003c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation for the colorimetric sensing of Al3+ion using PCA-DTC-Au NPs as a probe.
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Affiliation(s)
- Vaibhavkumar N. Mehta
- Department of Applied Chemistry
- S. V. National Institute of Technology
- Surat – 395 007
- India
| | | | - Suresh Kumar Kailasa
- Department of Applied Chemistry
- S. V. National Institute of Technology
- Surat – 395 007
- India
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42
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Hao JN, Yan B. A water-stable lanthanide-functionalized MOF as a highly selective and sensitive fluorescent probe for Cd2+. Chem Commun (Camb) 2015; 51:7737-40. [DOI: 10.1039/c5cc01430a] [Citation(s) in RCA: 282] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A highly selective and sensitive fluorescent sensor for Cd2+in aqueous solution based on a lanthanide post-functionalized metal–organic framework was developed.
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Affiliation(s)
- Ji-Na Hao
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
| | - Bing Yan
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
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43
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Docherty J, Mabbott S, Smith WE, Reglinski J, Faulds K, Davidson C, Graham D. Determination of metal ion concentrations by SERS using 2,2′-bipyridyl complexes. Analyst 2015; 140:6538-43. [DOI: 10.1039/c5an01525a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
SERS of bipyridyl complexes for the discrimination of six different metal ions.
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Affiliation(s)
- Julie Docherty
- Centre for Molecular Nanometrology
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Technology & Innovation Centre
| | - Samuel Mabbott
- Centre for Molecular Nanometrology
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Technology & Innovation Centre
| | - W. Ewen Smith
- Centre for Molecular Nanometrology
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Technology & Innovation Centre
| | - John Reglinski
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Karen Faulds
- Centre for Molecular Nanometrology
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Technology & Innovation Centre
| | | | - Duncan Graham
- Centre for Molecular Nanometrology
- WestCHEM
- Pure & Applied Chemistry
- University of Strathclyde
- Technology & Innovation Centre
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44
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Song H, Yang M, Fan X, Wang H. Turn-on electrochemiluminescence sensing of Cd(2+) based on CdTe quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:130-133. [PMID: 24934970 DOI: 10.1016/j.saa.2014.05.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 06/03/2023]
Abstract
A simple and sensitive method for the detection of cadmium ion was proposed based on the electrochemiluminescence (ECL) of thioglycolic acid capped-CdTe quantum dots (CdTe QDs). The ECL of CdTe QDs was firstly quenched by introduction of S(2)(-) and was restored due to following addition of Cd(2+), on the basis of which, a "turn-on" ECL method for the detection of Cd(2+) was demonstrated. The ECL of CdTe QDs exhibited linear response toward Cd(2+) concentration in the range from 6.3nM to 3.4μM (R=0.999) with a detection limit of 2.1nM. The proposed assay was simple, sensitive, selective, and practicable in real water samples.
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Affiliation(s)
- Honglei Song
- Anhui Key Laboratory of Chemo-biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Miao Yang
- Anhui Key Laboratory of Chemo-biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Xinxin Fan
- Anhui Key Laboratory of Chemo-biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Haiyan Wang
- Anhui Key Laboratory of Chemo-biosensing, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China.
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45
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Kiran K. MSA-capped gold nanoparticle-supported alumina for the determination of Pb and Cd in various environmental water samples. APPLIED NANOSCIENCE 2014. [DOI: 10.1007/s13204-014-0377-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Kiatkumjorn T, Rattanarat P, Siangproh W, Chailapakul O, Praphairaksit N. Glutathione and l-cysteine modified silver nanoplates-based colorimetric assay for a simple, fast, sensitive and selective determination of nickel. Talanta 2014; 128:215-20. [DOI: 10.1016/j.talanta.2014.04.085] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/25/2014] [Accepted: 04/29/2014] [Indexed: 11/29/2022]
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47
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Colorimetric and visual determination of total nereistoxin-related insecticides by exploiting a nereistoxin-driven aggregation of gold nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1347-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Thatai S, Khurana P, Boken J, Prasad S, Kumar D. Nanoparticles and core–shell nanocomposite based new generation water remediation materials and analytical techniques: A review. Microchem J 2014. [DOI: 10.1016/j.microc.2014.04.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Guo Y, Zhang Y, Shao H, Wang Z, Wang X, Jiang X. Label-Free Colorimetric Detection of Cadmium Ions in Rice Samples Using Gold Nanoparticles. Anal Chem 2014; 86:8530-4. [DOI: 10.1021/ac502461r] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yongming Guo
- Beijing
Engineering Research Center for BioNanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan Province 473061, China
| | - Yi Zhang
- Beijing
Engineering Research Center for BioNanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Huawu Shao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan Province 610041, China
| | - Zhuo Wang
- Beijing
Engineering Research Center for BioNanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Xuefei Wang
- School
of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingyu Jiang
- Beijing
Engineering Research Center for BioNanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China
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50
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Yuan LF, He YJ, Zhao H, Zhou Y, Gu P. Colorimetric detection of d-amino acids based on anti-aggregation of gold nanoparticles. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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