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Han L, Wang X, Yu B, Qin X, Liu B, Han X, Yuan H, Yu B, Zhao Z. Development of Fe 3O 4/DEX/PDA@Au(Raman reporters)@Au-MPBA nanocomposites based multi-hotspot SERS probe for ultrasensitive, reliable, and quantitative detection of glucose in sweat. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 326:125192. [PMID: 39342716 DOI: 10.1016/j.saa.2024.125192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 09/16/2024] [Accepted: 09/22/2024] [Indexed: 10/01/2024]
Abstract
Glucose is a key biomarker of diabetes, and effective glucose monitoring methods are crucial to the prevention and management of diabetes. Therefore, in this paper, Fe3O4/DEX/PDA@Au (Raman reporters) @Au nanocomposites were synthetized that with DTNB (5,5'-dithiobis(2-nitrobenzoic)), MMTA (2-mercapto-4-methyl-5-thiazole acetic acid), MBA (4-mercaptobenzoic acid) and 4-Mpy(4-Mercaptopyridine) were used separately as Raman reporters. Fe3O4 and PDA (Polymerized dopamine) could supply more high surface area of active sites and high SERS (Surface-Enhanced Raman Scattering) substrate, which has high stability and reproducibility. Dextran coating is an effective way to prepare biocompatible materials TEM, XRD, TG and VSM were used to analyze the size, morphology and magnetic properties of the nanocomposites. Fe3O4/DEX/PDA@Au(Raman reporters)@Au that integrates a multi-hotspot structure and magnetic separation techniques were studied the enhancement effect of Raman spectra, and glucose solutions with different concentrations were tested. Furthermore, the optimal Fe3O4/DEX/PDA@Au(Raman reporters)@Au nanocomposites were supplied as SERS substrates for detection of glucose accurately and quickly in sweat. SERS signal intensity is linearly correlated with glucose concentration within the measurement range of 5 × 10-3 to 10 mM, and the minimum detectable concentration is 5 µM. The Fe3O4/DEX/PDA@Au(Raman reporters)@Au nanocomposites exhibit high reliability, specificity and repeatability of the strategy were then verified by practical detection of sweat.
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Affiliation(s)
- Lun Han
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Xu Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Guangzhou Jingwei Jinfang Protection Technology Co., Ltd, Guangzhou 510000, China
| | - Bin Yu
- Department of Supply Management, Naval Logistics Academy, Tianjin 300000, China
| | - Xiaoyuan Qin
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Baocheng Liu
- Guangzhou Jingwei Jinfang Protection Technology Co., Ltd, Guangzhou 510000, China
| | - Xu Han
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Huifen Yuan
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Bin Yu
- School of Textile, Henan University of Engineering, Zhengzhou 450000, Henan, China
| | - Zhiqi Zhao
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
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Wang F, Feng X, Gao Y, Ding X, Wang W, Zhang J. Green Synthesis of PtPdNiFeCu High-Entropy Alloy Nanoparticles for Glucose Detection. ACS OMEGA 2023; 8:47773-47780. [PMID: 38144105 PMCID: PMC10733955 DOI: 10.1021/acsomega.3c06122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/14/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023]
Abstract
High-entropy alloys have long been used as a new type of alloy material and have attracted widespread concern because of their excellent performance, including their stable microstructure and particular catalytic properties. To design a safer preparation method, we report a novel approach targeting green synthesis, using tea polyphenols to prepare PtPdNiFeCu high-entropy alloy nanoparticles for glucose detection. The fabricated sensors were characterized by transmission electron microscopy and electrochemical experiments. Physical characterization showed that the nanoparticle has better dispersibility, and the average particle size is 7.5 nm. The electrochemical results showed that Tp-PtPdNiFeCu HEA-NPs had a high sensitivity of 1.264 μA mM-1 cm-2, a low detection limit of 4.503 μM, and a wide detection range of 0 - 10 mM. In addition, the sensor has better stability and selectivity for glucose detection.
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Affiliation(s)
- Fengxia Wang
- College
of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Xin Feng
- College
of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Yanting Gao
- College
of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Xu Ding
- College
of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Wei Wang
- School
of Chemistry and Chemical Engineering, Lanzhou
Jiaotong University, Lanzhou 730070, China
| | - Ji Zhang
- Bioactive
Products Engineering Research Center for Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, China
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