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Wu Y, Lu K, Pei F, Yan Y, Feng S, Hao Q, Xia M, Lei W. Construction of g-C3N4/Au/NH2-UiO-66 Z-scheme heterojunction for label-free photoelectrochemical recognition of D-penicillamine. Talanta 2022; 248:123617. [DOI: 10.1016/j.talanta.2022.123617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/05/2022] [Accepted: 05/25/2022] [Indexed: 01/23/2023]
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2
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Srivastava A, Naik RM, Rai J, Kumar I, Yaseen B, Gangwar C. Kinetic study of Hg(
II
)‐promoted substitution of cyanide from hexacyanoferrate(
II
) in an anionic surfactant medium by 2,2′‐bipyridine. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Radhey Mohan Naik
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Jyoti Rai
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Indresh Kumar
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Bushra Yaseen
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
| | - Chinky Gangwar
- Department of Chemistry Lucknow University Lucknow Uttar Pradesh India
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3
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Determination of penicillamine, tiopronin and glutathione in pharmaceutical formulations by kinetic spectrophotometry. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2021; 71:619-630. [PMID: 36651552 DOI: 10.2478/acph-2021-0038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/31/2020] [Indexed: 01/19/2023]
Abstract
A novel and simple method for the determination of penicillamine (PEN), tiopronin (mercaptopropionyl glycine, MPG) and glutathione (GSH) in pharmaceutical formulations by kinetic spectrophotometry has been developed and validated. It is based on the redox reaction where the thiol compound (RSH) reduces CuII-neocuproine complex to CuI-neocuproine complex. The non-steady state signal of the formed CuI- neocuproine complex is measured at 458 nm. The initial rate and fixed time (at 1 min) methods were validated. The calibration graph was linear in the concentration range from 8.0 × 10‒7 to 8.0 × 10‒5 mol L-1 for the initial rate method and from 6.0 × 10‒7 to 6.0 × 10-5 mol L-1 for the fixed time method, with the detection limits of 2.4 × 10-7 and 1.4 × 10‒7 mol L-1, resp. Levels of PEN, MPG and GSH in pharmaceutical formulations were successfully assayed by both methods. The advantages of the presented methods include sensitivity, short analysis time, ease of application and low cost.
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4
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Guo YT, Xiao YH, Zhang JG, Bian SD, Zhou JZ, Wu DY, Tian ZQ. Inspecting the structural characteristics of chiral drug penicillamine under different pH conditions using Raman optical activity spectroscopy and DFT calculations. Phys Chem Chem Phys 2021; 23:22119-22132. [PMID: 34580687 DOI: 10.1039/d1cp02219a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The investigation of the structural characteristics of chiral drugs in physiological environments is a challenging research topic, which may lead to a better understanding of how the drugs work. Raman optical activity (ROA) spectroscopy in combination with density functional theory (DFT) calculations was exploited to inspect the structural changes in penicillamine under different acid-base states in aqueous solutions. The B3LYP/aug-cc-PVDZ method was employed and the implicit solvation model density (SMD) was considered for describing the solvation effect in H2O. The conformations of penicillamine varied with pH, but penicillamine was liable to stabilize in the form of the PC conformation (the sulfur atom is in a trans orientation with respect to carboxylate) in most cases for both D- and L-isomers. The relationship between the conformations of penicillamine and the ROA peaks, as well as peak assignments, were comprehensively studied and elucidated. In the fingerprint region, two ROA couplets and one ROA triplet with different patterns were recognized. The intensity, sign and frequency of the corresponding peaks also changed with varying pH. Deuteration was carried out to identify the vibrational modes, and the ROA peaks of the deuterated amino group in particular are sensitive to change in the ambient environment. The results are expected not only to serve as a reference for the interpretation of the ROA spectra of penicillamine and other chiral drugs with analogous structures but also to evaluate the structural changes of chiral molecules in physiological environments, which will form the basis of further exploration of the effects of structural characteristics on the pharmacological and toxicological properties of chiral drugs.
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Affiliation(s)
- Yu-Ting Guo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - Yuan-Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - Ji-Guang Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - Si-Da Bian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - Jian-Zhang Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
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5
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Liu L, Zhang Q, Li F, Wang M, Sun J, Zhu S. Fluorescent DNA-templated silver nanoclusters for highly sensitive detection of D-penicillamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119584. [PMID: 33636492 DOI: 10.1016/j.saa.2021.119584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Herein, fluorescent DNA-templated silver nanoclusters (DNA-AgNCs) with red emission were synthesized and utilized as novel probe to detect D-penicillamine (D-Pen) for the first time. D-Pen molecules contain a thiol which can combine with Ag to form a non-fluorescent ground state complex, inducing the aggregation of DNA-AgNCs followed by the fluorescence quenching. The quenching mechanism is well-studied and found to be a static quenching process. This method can detect D-Pen in the range of 0.025-0.7 μM with the detection limit as low as 8 nM, which is 1-3 orders of magnitude more sensitive than those based on other fluorescent nanoprobes. More importantly, the preparation procedure for DNA-AgNCs is fast and without the requirement of heavy metal ions. Thus, this detection strategy is time-saving and eco-friendly. Satisfactory recoveries have been acquired for monitoring D-Pen in human serum samples and pharmaceutical samples owing to the high sensitivity.
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Affiliation(s)
- Lingyuan Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Qianyi Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Feng Li
- Qingdao Special Service Men Recuperation Center of PLA Navy, Qingdao 266071, China
| | - Mei Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
| | - Shuyun Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
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6
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Spectrophotometric kinetic study of mercury(II)-catalyzed formation of [4-CNpyRu(CN)5]3− via ligand exchange reaction of hexacyanoruthenate(II) with 4-cyanopyridine: a mechanistic approach. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01927-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Agarwal A, Verma AK, Yoshida M, Naik RM, Prasad S. A novel catalytic kinetic method for the determination of mercury(ii) in water samples. RSC Adv 2020; 10:25100-25106. [PMID: 35517435 PMCID: PMC9055178 DOI: 10.1039/d0ra03487h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/27/2020] [Indexed: 11/22/2022] Open
Abstract
Mercury(ii) ions act as catalyst in the substitution of cyanide ion in hexacyanoruthenate(ii) by pyrazine (Pz) in an acidic medium. This property of Hg(ii) has been utilized for its determination in aqueous solutions. The progress of reaction was followed spectrophotometrically by measuring the increase in absorbance of the yellow colour product, [Ru(CN)5Pz]3− at 370 nm (λmax, ε = 4.2 × 103 M−1 s−1) under the optimized reaction conditions; 5.0 × 10−5 M [Ru(CN)64−], 7.5 × 10−4 M [Pz], pH 4.00 ± 0.02, ionic strength (I) = 0.05 M (KCl) and temp. 45.0 ± 0.1 °C. The proposed method is based on the fixed time procedure under optimum reaction conditions. The linear regression (calibration) equations between the absorbance at fixed times (t = 15, 20 and 25 min) and [Hg(ii)] were established in the range of 1.0 to 30.0 × 10−6 M. The detection limit was found to be 1.5 × 10−7 M of Hg(ii). The effect of various foreign ions on the proposed method was also studied and discussed. The method was applied for the determination of Hg(ii) in different wastewater samples. The present method is simple, rapid and sensitive for the determination of Hg(ii) in trace amount in the environmental samples. Mercury(ii) ions act as catalyst in the substitution of cyanide ion in hexacyanoruthenate(ii) by pyrazine (Pz) in an acidic medium.![]()
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Affiliation(s)
- Abhinav Agarwal
- Department of Chemistry, University of Lucknow Lucknow 226007 India +91 9450466126
| | - Amit Kumar Verma
- Department of Chemistry, University of Lucknow Lucknow 226007 India +91 9450466126
| | - Masafumi Yoshida
- Department of Natural Sciences, Faculty of Knowledge Engineering, Tokyo City University Tokyo Japan
| | - Radhey Mohan Naik
- Department of Chemistry, University of Lucknow Lucknow 226007 India +91 9450466126
| | - Surendra Prasad
- School of Biological and Chemical Sciences, Faculty of Science, Technology and Environment, The University of the South Pacific Suva Fiji +679 3232416
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8
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Rastogi R, Srivastava A, Naik RM. Kinetic and mechanistic analysis of ligand substitution of aquapentacyanoruthenate(II) in SDS medium by 4,4′bipyridine. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1614042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Richa Rastogi
- Department of Chemistry, Lucknow University, Lucknow, U.P., India
| | | | - R. M. Naik
- Department of Chemistry, Lucknow University, Lucknow, U.P., India
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9
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Yadav R, Naik RM. Kinetics and mechanism of formation of the complex [Ru(CN)5INH]3− through the ligand substitution reaction between the aquapentacyanoruthenate(II) anion and isoniazid. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.1177/1468678319825737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The formation kinetics of the complex, [Ru(CN)5INH]3−, formed through the ligand substitution reaction between isoniazid (INH) and aquapentacyanoruthenate(II) ([Ru(CN)5H2O]3−), have been investigated, under pseudo first-order conditions, as a function of concentrations of [INH] and [Ru(CN)5H2O]3−, ionic strength and temperature at pH = 4.0 ± 0.02 in 0.2 M NaClO4 spectrophotometrically at 502 nm ( λmax of intense yellow colour product [Ru(CN)5INH]3−) corresponding to metal-to-ligand charge-transfer transitions, in aqueous medium. The pseudo first-order condition was maintained by taking at least 10% excess of [INH] over [Ru(CN)5H2O]3−. The stoichiometry of the reaction product was found to be 1:1 which was further supported and characterized using elemental analysis, infrared, nuclear magnetic resonance and mass spectrometric techniques. Thermodynamic and kinetic parameters have also been computed, using the Eyring equation, and the values of ΔH≠, Ea, ΔG≠ and ΔS≠ were found to be 47.3 kJ mol−1, 49.8 kJ mol−1, −8.62 kJ mol−1 and 187.6 J K−1mol−1, respectively. The reaction was found to obey first-order kinetics with respect to [INH]. It exhibited a negative salt effect on the rate upon variation of ionic strength of the medium. A tentative mechanistic scheme was proposed on the basis of experimental findings.
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Affiliation(s)
- Rupal Yadav
- Department of Chemistry, University of Lucknow, Lucknow, India
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10
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Cao L, Wei T, Shi Y, Tan X, Meng J. Determination of D-penicillamine and tiopronin in human urine and serum by HPLC-FLD and CE-LIF with 1,3,5,7-tetramethyl-8-bromomethyl-difluoroboradiaza-s-indacene. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2017.1348953] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Liwei Cao
- Department of Chemistry, College of Chemistry and Materials, Jinan University, Tianhe District, Guangzhou, P. R. China
| | - Tian Wei
- Department of Chemistry, College of Chemistry and Materials, Jinan University, Tianhe District, Guangzhou, P. R. China
| | - Yihui Shi
- Department of Chemistry, College of Chemistry and Materials, Jinan University, Tianhe District, Guangzhou, P. R. China
| | - Xiaofang Tan
- Department of Chemistry, College of Chemistry and Materials, Jinan University, Tianhe District, Guangzhou, P. R. China
| | - Jianxin Meng
- Department of Chemistry, College of Chemistry and Materials, Jinan University, Tianhe District, Guangzhou, P. R. China
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11
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Huang C, Liu Y, Wu L, Zhao H. Synthesis of chiral fluorescence silver nano-clusters and study on the aggregation-induced emission enhancement and chiral flip. RSC Adv 2016. [DOI: 10.1039/c6ra22102e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Using racemic GSH as ligand, AgNCs with aggregation-induced emission enhancement and chiral flip were synthesized with solid-phase synthesis method.
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Affiliation(s)
- Cheng Huang
- Department of Chemistry
- College of Pharmacy
- Third Military Medical University
- Chongqing 400038
- China
| | - Yue Liu
- Department of Chemistry
- College of Pharmacy
- Third Military Medical University
- Chongqing 400038
- China
| | - Liping Wu
- Department of Chemistry
- College of Pharmacy
- Third Military Medical University
- Chongqing 400038
- China
| | - Huawen Zhao
- Department of Chemistry
- College of Pharmacy
- Third Military Medical University
- Chongqing 400038
- China
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