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Yao W, Li S, Xie L, Jiang Y. Chiral recognition of tryptophan enantiomer based on the electrode modified by polyaniline adsorption bovine serum albumin complex. Chirality 2023; 35:129-144. [PMID: 36564104 DOI: 10.1002/chir.23525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 12/25/2022]
Abstract
A chiral sensing platform was constructed via adsorptive functionalization of ammonium persulfate doped polyaniline (APS-DPANI) with bovine serum albumin (BSA). The novelty of this work is the construction of such chiral interface with adsorption principle. The material has been characterized by scanning electron microscope, Fourier transform infrared and X-ray photoelectron spectroscopy, and thermogravimetric and water contact angle analyses. It displayed considerable stability in multi-run cyclic voltammetric scanning. Moreover, the superior conductivity of APS-DPANI and the decent binding ability of BSA endowed this sensing platform with an excellent recognition effect for tryptophan (Trp) enantiomers in the differential pulse voltammetry (DPV) test. The recognition was highly reproducible, and the detection limits for L- and D-isomer were 0.071 and 0.0478 mM, respectively.
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Affiliation(s)
- Wenyan Yao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Sha Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
| | - Licheng Xie
- Changzhou University Huaide College, Taizhou, China
| | - Yan Jiang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, China
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Acipreste Hudson E, Campos de Paula HM, Coelho YL, Glanzmann N, da Silva AD, Mendes da Silva LH, Dos Santos Pires AC. The kinetics of formation of resveratrol-β-cyclodextrin-NH 2 and resveratrol analog-β-cyclodextrin-NH 2 supramolecular complexes. Food Chem 2021; 366:130612. [PMID: 34311236 DOI: 10.1016/j.foodchem.2021.130612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/23/2021] [Accepted: 07/13/2021] [Indexed: 11/16/2022]
Abstract
The determination of the kinetics of inclusion processes is significant for the application of inclusion complexes as carriers for bioactive molecules. We determined the kinetic parameters of inclusion between modified β-cyclodextrin (β-CD-NH2) and the polyphenols resveratrol (RES) and its structural analog (RESAn1), using the real-time analysis of surface plasmon resonance. The association and dissociation rate constants (ka and kd) showed that RESAn1 inclusion and its dissociation from β-CD-NH2 were faster than a similar process for RES ( [Formula: see text] = 3.10∙104 ± 0.14 M-1s-1, [Formula: see text] =1.87∙103 ± 0.11 M-1s-1; [Formula: see text] =0.39 ± 0.02 s-1, [Formula: see text] =0.30 ± 0.02 s-1, at 25 °C). The activated complex formation was also affected by the structural differences between the polyphenols, as showed by the activation energies of the association step ( [Formula: see text] 14.81 ± 0.64 kJ∙mol-1, [Formula: see text] -15.01 ± 0.75 to 82.35 ± 4.47 kJ∙mol-1). These effects of polyphenol structural differences are due to the desolvation process of interacting molecules. These results elucidate the role of small group to the dynamics of the molecular inclusion of β-CD.
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Affiliation(s)
- Eliara Acipreste Hudson
- Applied Molecular Thermodynamic Group (THERMA), Food Technology Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Hauster Maximiler Campos de Paula
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Yara Luiza Coelho
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Nícolas Glanzmann
- Department of Chemistry, Institute of Exact Sciences (I. C. E.), Federal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Adilson David da Silva
- Department of Chemistry, Institute of Exact Sciences (I. C. E.), Federal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Luis Henrique Mendes da Silva
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil.
| | - Ana Clarissa Dos Santos Pires
- Applied Molecular Thermodynamic Group (THERMA), Food Technology Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil.
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Arun Y, Daifa M, Domb AJ. Polyhydroxamic acid as an efficient metal chelator and flocculant for wastewater treatment. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuvaraj Arun
- Institute of Drug Research, School of Pharmacy‐Faculty of Medicine, The Alex Grass center for Drug Design and Synthesis and Center for Cannabis Research The Hebrew University of Jerusalem Jerusalem Israel
| | - Mahran Daifa
- Institute of Drug Research, School of Pharmacy‐Faculty of Medicine, The Alex Grass center for Drug Design and Synthesis and Center for Cannabis Research The Hebrew University of Jerusalem Jerusalem Israel
| | - Abraham J. Domb
- Institute of Drug Research, School of Pharmacy‐Faculty of Medicine, The Alex Grass center for Drug Design and Synthesis and Center for Cannabis Research The Hebrew University of Jerusalem Jerusalem Israel
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