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Zhang M, Meng L, Kalyinur K, Dong S, Chang X, Yu Q, Wang R, Pang B, Kong X. Fabrication and Application of Ag@SiO 2/Au Core-Shell SERS Composite in Detecting Cu 2+ in Water Environment. Molecules 2024; 29:1503. [PMID: 38611782 PMCID: PMC11013303 DOI: 10.3390/molecules29071503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
A sensitive and simple method for detecting Cu2+ in the water source was proposed by using surface-enhanced Raman scattering spectroscopy (SERS) based on the Ag@SiO2/Au core-shell composite. The Ag@SiO2 SERS tag was synthesized by a simple approach, in which Ag nanoparticles were first embedded with Raman reporter PATP and next coated with a SiO2 shell. The Ag@SiO2 nanoparticles had strong stability even in a high-concentration salty solution, and there were no changes to their properties and appearance within one month. The Ag@SiO2/Au composite was fabricated through a controllable self-assemble process. L-cysteine was decorated on the surface of a functionalized Ag@SiO2/Au composite, as the amino and carboxyl groups of it can form coordinate covalent bond with Cu2+, which shows that the Ag@SiO2/Au composite labelled with L-cysteine has excellent performance for the detection of Cu2+ in aqueous media. In this study, the SERS detection of Cu2+ was carried out using Ag@SiO2 nanoparticles, and the limit of detection (LOD) as low as 0.1 mg/L was achieved.
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Affiliation(s)
- Meizhen Zhang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
| | - Lin Meng
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
- International Education College, Liaoning Petrochemical University, Fushun 113001, China;
| | - Kelgenbaev Kalyinur
- International Education College, Liaoning Petrochemical University, Fushun 113001, China;
| | - Siyuan Dong
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
- International Education College, Liaoning Petrochemical University, Fushun 113001, China;
| | - Xinyi Chang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
| | - Qian Yu
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
| | - Rui Wang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
| | - Bo Pang
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Xianming Kong
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China; (M.Z.); (L.M.); (S.D.); (X.C.); (Q.Y.); (X.K.)
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Liu X, Beaudoin G, Zhang H, Esquivel Guzmán JA, Le Roux É, Pellerin C, Rivera E, Lavertu M, Zhu XX. Chlorophyllin-Containing Copolymers and Their Responsive Properties. ACS APPLIED BIO MATERIALS 2024; 7:124-130. [PMID: 38109902 DOI: 10.1021/acsabm.3c00584] [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] [Indexed: 12/20/2023]
Abstract
Copper-chlorophyllin is a water-soluble derivative of chlorophylls and shows low cytotoxicity and antimutagenic properties in cultured cells. It has multiple applications, including its use as a photosensitizer in photothermal therapy because of its green light-activated photothermal performance. In this work, it was copolymerized with a poly(ethylene glycol) methacrylic monomer to yield random copolymers by free radical polymerization, which showed dual temperature- and pH-dependent phase transitions in aqueous solutions. The cloud points of the copolymer solutions were raised by lowering the pH of the aqueous solutions due to the protonation of the carboxylic groups on the chlorophyllin moieties, which decreased the overall hydrophilicity of the polymers. At low pH values, complete protonation of the carboxylic acid groups of the chlorophyllin moieties led to an irreversible aggregation of the copolymers in water. The incorporation of chlorophyllin in the copolymer improved its stability over its single molecular form.
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Affiliation(s)
- Xuemin Liu
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Guillaume Beaudoin
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Hu Zhang
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Jair A Esquivel Guzmán
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Élise Le Roux
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Christian Pellerin
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, CP 04510 Mexico City, Mexico
| | - Marc Lavertu
- Département de Génie Chimique, Polytechnique Montréal, Montréal, Quebec H3T 1J4, Canada
| | - Xiao Xia Zhu
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec H3C 3J7, Canada
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The stabilization of food grade copper-chlorophyllin in low pH solutions through association with anionic polysaccharides. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cheng J, Wang S, Su XO. Detection of melamine in feed using liquid-liquid extraction treatment combined with surface-enhanced Raman scattering spectroscopy. PLoS One 2014; 9:e107770. [PMID: 25243970 PMCID: PMC4171497 DOI: 10.1371/journal.pone.0107770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 08/14/2014] [Indexed: 11/18/2022] Open
Abstract
A rapid, selective, and sensitive method to determine the melamine content in animal feeds was developed using surface-enhanced Raman scattering spectroscopy on aggregated 55 nm Au nanoparticles with liquid-liquid extraction sample preparation. Butyl alcohol was used as the initial extraction solvent, and liquid-liquid extraction was performed twice using HCl (pH 3-4) and 6:1 (v/v) n-butyl alcohol/ethyl acetate. The intensity of the matrix-based peak at 731 cm⁻¹ was set at 100 as a basis for the feeds, and the peak at 707 cm-1 was the characteristic peak of melamine used in the calculations. Sufficient linearity was obtained in the range 2-10 µg·g⁻¹ (R² = 0.991). Limits of detection and quantification in the feeds were 0.5 and 2 µg·g⁻¹, respectively. The recovery rates were 82.5-90.2% with coefficients of variation below 4.02%. This new protocol could be easily developed for the routine monitoring of on-site feed quality and market surveillance.
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Affiliation(s)
- Jie Cheng
- Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shi Wang
- Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiao-Ou Su
- Institute of Quality Standards and Testing Technologies for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
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Xie Y, Mukamurezi G, Sun Y, Wang H, Qian H, Yao W. Establishment of rapid detection method of methamidophos in vegetables by surface enhanced Raman spectroscopy. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1724-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kong X, Yu Q, Zhang X, Du X, Gong H, Jiang H. Synthesis and application of surface enhanced Raman scattering (SERS) tags of Ag@SiO2 core/shell nanoparticles in protein detection. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16397g] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kazim S, Pfleger J, Procházka M, Bondarev D, Vohlídal J. Colloidal systems of silver nanoparticles and high-regioregular cationic polythiophene with ionic-liquid-like pendant groups: Optical properties and SERS. J Colloid Interface Sci 2011; 354:611-9. [DOI: 10.1016/j.jcis.2010.11.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 11/12/2010] [Accepted: 11/17/2010] [Indexed: 10/18/2022]
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