1
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Wang WL, Zhang ZC, Yu D, Ni BL, Sun WM. Suzuki-Miyaura Cross-Coupling Reaction Catalyzed by Al 12M (M = Be, Al, C, and P) Superatoms with Different Numbers of Valence Electrons. Inorg Chem 2024; 63:11768-11778. [PMID: 38864539 DOI: 10.1021/acs.inorgchem.4c01407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
The exploration of low-cost, efficient, environmentally safe, and selective catalysts for the activation of carbon-halogen bonds has become an important and challenging topic in modern chemistry. With the help of density functional theory (DFT), it is found that phenyl bromide (PhBr) can be efficiently chemisorbed by the Al12M (M = Be, Al, C, and P) superatoms via forming highly polarized Al-Br covalent bonds, where the C-Br bonds of PhBr can be effectively activated through the electron transfer from Al12M. The different electronic structures of these four Al12M superatoms pose a substantial effect on their performances on the activation of PhBr and the catalytic mechanisms of the Suzuki-Miyaura (SM) reaction. Among them, the alkali-metal-like superatom Al12P exhibits the best performance for the activation of PhBr. In particular, Al13 and Al12P with open-shell electronic structures exhibit catalytic performances comparable to those of previously reported catalysts for this coupling reaction. Hence, it is highly expected that Al13 and Al12P could be used as novel superatom catalysts for C-C coupling reactions and, therefore, open up new possibilities to use nonprecious superatoms in catalyzing the activation and transformation of carbon-halogen bonds.
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Affiliation(s)
- Wen-Lu Wang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350108, People's Republic of China
| | - Zhi-Chao Zhang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350108, People's Republic of China
| | - Dan Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong 510006, People's Republic of China
| | - Bi-Lian Ni
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350108, People's Republic of China
| | - Wei-Ming Sun
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350108, People's Republic of China
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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2
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Kha TN, Si NT, Tran VM, Vo KQ, Nguyen MT, Nhat PV. Binding Mechanism and Surface-Enhanced Raman Scattering of the Antimicrobial Sulfathiazole on Gold Nanoparticles. ACS OMEGA 2023; 8:43442-43453. [PMID: 38027349 PMCID: PMC10666133 DOI: 10.1021/acsomega.3c01477] [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: 03/04/2023] [Accepted: 09/18/2023] [Indexed: 12/01/2023]
Abstract
A combined study using the surface-enhanced Raman scattering (SERS) technique and quantum chemical calculations was carried out to elucidate the adsorption behavior of sulfathiazole, an antibiotic drug, on gold nanoparticles. The tetrahedral Au20 cluster was used as a simple model to mimic a nanostructured gold surface. Computations using density functional theory with the PBE functional were performed in both the gas phase and aqueous medium using a continuum model. The drug is found to bind to the Au metals via the nitrogen of the thiazole ring. The interaction is also partially stabilized by the ring-surface π coupling rather than a sideway adsorption as previously proposed. In an aqueous solution, the drug molecule mainly exists as a deprotonated form, which gives rise to a much greater affinity toward Au nanoparticles as compared to the neutral forms. The drug adsorption further induces a significant alteration on the energy gap of the gold cluster Aun, which could result in an electrical noise. Notable SERS signals below 1600 cm-1, which result from a coupling of several vibrations including the ring breathing, C-C stretching, and N-H bending, could be employed for both qualitative and quantitative detection and assessment of sulfathiazole at trace concentrations.
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Affiliation(s)
- Tran Ni Kha
- Department
of Chemistry, Can Tho University, Can Tho City 90000, Vietnam
| | - Nguyen Thanh Si
- Department
of Chemistry, Can Tho University, Can Tho City 90000, Vietnam
- Institute
of Environmental Science and Technology, Tra Vinh University, Tra Vinh
City 94000, Vietnam
| | - Van Man Tran
- Faculty
of Chemistry, University of Science, Vietnam
National University, Ho Chi
Minh City 70000, Vietnam
| | - Khuong Quoc Vo
- Faculty
of Chemistry, University of Science, Vietnam
National University, Ho Chi
Minh City 70000, Vietnam
| | - Minh Tho Nguyen
- Laboratory
for Chemical Computation and Modeling, Institute for Computational
Science and Artificial Intelligence, Van
Lang University, Ho Chi
Minh City 70000, Vietnam
- Faculty
of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh
City 70000, Vietnam
| | - Pham Vu Nhat
- Department
of Chemistry, Can Tho University, Can Tho City 90000, Vietnam
- Molecular
and Materials Modeling Laboratory, Can Tho
University, Can Tho City 90000, Vietnam
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3
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Li YY, Li RZ, Wang XY. Interaction of glycine with Li + in the (H 2O) n (n = 0-8) clusters. J Mol Model 2023; 29:254. [PMID: 37464061 DOI: 10.1007/s00894-023-05663-9] [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: 06/15/2023] [Accepted: 07/12/2023] [Indexed: 07/20/2023]
Abstract
CONTEXT We investigated the interaction between glycine and Li+ in water environment based on the Gly·Li+(H2O)n (n = 0-8) cluster. Our study shows that for Gly·Li+, Li+ binds to both carbonyl oxygen and amino nitrogen to form a bidentate structure, and the first three water molecules preferentially interact with Li+. For n = 0-5, the complexes of Gly·Li+(H2O)n exist in neutral form, and when the water number reached 6, the complex can coexist in neutral and zwitterionic form, then zwitterionic structures are dominant for n = 7, 8. The analyses by RDG, AIM, and ESP in conjunction with the calculated interaction energies show that the interaction between Li+ and Gly decreases gradually with the water molecules involved successively from n = 1 to 6 and then increases for n = 7-8. Additionally, the infrared spectra of Gly·Li+(H2O)n (n = 0-8) are also calculated. METHODS The initial structures were optimized using Gaussian 09 program package in B3LYP-D3 (BJ)/6-311G(d, p) method, and the frequency was calculated with 6-311 + G(2d, p) basis set. GaussView5.0.9 was used to view simulation infrared spectra. The noncovalent interaction method (NCl), energy decomposition (EDA), atoms in molecules (AIM) analysis, and electrostatic potential (ESP) analyses were conducted using Multiwfn software to gain a deeper understanding of the interaction properties of Gly, Li+, and water.
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Affiliation(s)
- Yuan-Yi Li
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Ren-Zhong Li
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China.
| | - Xin-Yu Wang
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
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Peng J, Wang L, Wang P, Pei Y. Density Functional Theory Computation and Machine Learning Studies of Interaction between Au 3 Clusters and 20 Natural Amino Acid Molecules. ACS OMEGA 2023; 8:23024-23031. [PMID: 37396243 PMCID: PMC10308543 DOI: 10.1021/acsomega.3c02195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/17/2023] [Indexed: 07/04/2023]
Abstract
The optimal adsorption sites and the binding energies of neutral Au3 clusters with 20 natural amino acids under the gas phase and water solvation were systematically investigated based on density functional theory (DFT) calculations. The calculation results showed that in the gas phase Au3 tends to bind with N atoms of amino groups in amino acids, except methionine, which tends to bind with Au3 through S atoms. Under water solvation, Au3 clusters tended to bind to N atoms of amino groups and N atoms of side chain amino groups in amino acids. However, methionine and cysteine bind more strongly to the gold atom through the S atom. Based on the binding energy data of Au3 clusters and 20 natural amino acids under water solvation calculated by DFT, a machine learning model (gradient boosted decision tree) was proposed to predict the optimal binding Gibbs free energy (ΔG) of the interaction between Au3 clusters and amino acids. The main factors affecting the strength of the interaction between Au3 and amino acids were uncovered by the feature importance analysis.
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Affiliation(s)
- Jiao Peng
- Department
of Chemistry, Key Laboratory for Green Organic Synthesis and Application
of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Li Wang
- Department
of Chemistry, Key Laboratory for Green Organic Synthesis and Application
of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Pu Wang
- Department
of Chemistry, Key Laboratory for Green Organic Synthesis and Application
of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Yong Pei
- Department
of Chemistry, Key Laboratory for Green Organic Synthesis and Application
of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China
- School
of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China
- State
Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
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5
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Akbari M, Morad R, Maaza M. Effect of silver nanoparticle size on interaction with artemisinin: First principle study. RESULTS IN SURFACES AND INTERFACES 2023. [DOI: 10.1016/j.rsurfi.2023.100104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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6
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Sarvar M, Shafaei Tonkaboni Z, Noaparast M, Badiei AR, Amiri A. Application of amino acids for gold leaching: Effective parameters and the role of amino acid structure. JOURNAL OF CLEANER PRODUCTION 2023; 391:136123. [DOI: 10.1016/j.jclepro.2023.136123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
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7
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Kateshiya MR, Desai ML, Malek NI, Kailasa SK. Advances in Ultra-small Fluorescence Nanoprobes for Detection of Metal Ions, Drugs, Pesticides and Biomarkers. J Fluoresc 2022; 33:775-798. [PMID: 36538145 DOI: 10.1007/s10895-022-03115-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
Identification of trace level chemical species (drugs, pesticides, metal ions and biomarkers) plays key role in environmental monitoring. Recently, fluorescence assay has shown significant advances in detecting of trace level drugs, pesticides, metal ions and biomarkers in real samples. Ultra-small nanostructure materials (metal nanoclusters (NCs), quantum dots (QDs) and carbon dots (CDs)) have been integrated with fluorescence spectrometer for sensitive and selective analysis of trace level target analytes in various samples including environmental and biological samples. This review summarizes the properties of metal NCs and ligand chemistry for the fabrication of metal NCs. We also briefly summarized the synthetic routes for the preparation of QDs and CDs. Advances of ultra-small fluorescent nanosensors (NCs, QDs and CDs) for sensing of metal ions, drugs, pesticides and biomarkers in various sample matrices are briefly discussed. Additionally, we discuss the recent challenges and future perspectives of ultra-small materials as fluorescent sensors for assaying of wide variety of target analytes in real samples.
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8
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Si NT, Nhat PV, Nguyen MT. Binding mechanism and SERS spectra of 5-fluorouracil on gold clusters. Front Chem 2022; 10:1050423. [PMID: 36545217 PMCID: PMC9760957 DOI: 10.3389/fchem.2022.1050423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
The adsorption behaviour of the 5-fluorouracil (5FU) on small gold clusters Au N with N = 6, 8, 20 was evaluated by means of density functional theory using the PBE-D3 functional in combination with a mixed basis set, i.e. cc-pVDZ-PP for gold atoms and cc-pVTZ for non-metal elements. The binding energies between 5FU and gold clusters were determined in the range of 16-24 and 11-19 kcal/mol in gas-phase and aqueous media, respectively. The corresponding Gibbs energies were found to be around -7 to -10 kcal/mol in vacum and sigificantly reduced to -1 to -6 kcal/mol in water solution, indicating that both the association and dissociation processes are likely spontaneous. An analysis on the charge density difference tends to confirm the existence of a charge transfer from the 5FU molecule to Au atoms. Analysis of the surface-enhanced Raman scattering (SERS) spectra of 5FU adsorbed on the Au surfaces shows that the stretching vibrations of N-H and C=O bonds play a major role in the SERS phenomenon. A mechanism for the drug releasing from the gold surfaces is also proposed. The process is triggered by either the low pH in cancerous tumors or the presence of cysteine residues in protein matrices.
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Affiliation(s)
- Nguyen Thanh Si
- Department of Chemistry, Can Tho University, Can Tho City, Vietnam
| | - Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho City, Vietnam
| | - Minh Tho Nguyen
- Laboratory for Chemical Computation and Modeling, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, Vietnam,Faculty of Applied Technology, Van Lang University, Ho Chi Minh City, Vietnam,*Correspondence: Minh Tho Nguyen,
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9
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Thai VP, Nguyen HD, Saito N, Takahashi K, Sasaki T, Kikuchi T. Precise size-control and functionalization of gold nanoparticles synthesized by plasma-liquid interactions: using carboxylic, amino, and thiol ligands. NANOSCALE ADVANCES 2022; 4:4490-4501. [PMID: 36341298 PMCID: PMC9595108 DOI: 10.1039/d2na00542e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
Using gold nanoparticles (GNPs) in high-standard applications requires GNPs to be fabricated with high-quality size and surface properties. Plasma-liquid interactions (PLIs) have the unique ability to synthesize GNPs without using any reducing agents, and the GNP surface is free of stabilizing agents. It is an extreme advantage that ensures success for the subsequent functionalization processes for GNPs. However, fabricating GNPs via PLIs at the desired size has still been a challenge. Here, we present a simple approach to achieving the precise size-control of GNPs synthesized by PLIs. By adding suitable ligands to the precursor solution, the ligands wrap GNPs which interrupts and slows down the rapid growth of GNPs under PLIs. This way, the size of the GNPs can be precisely controlled by adjusting the ligand concentration. Our results showed that the size of the GNPs in the range of 10-60 nm can be fitted to reciprocal functions of the ligand concentration. The potency of the size-control depends on the type of ligands in the order of thiol > amine > carboxylate. The size-control has been well investigated with four common ligands: l-cysteine, glucosamine, salicylic acid, and terephthalic acid. XPS, FTIR, and zeta potential techniques confirmed the presence of these ligands on GNPs. The results indicated that functionalized ligands could be utilized to control the size and functionalize the GNP surface. Hence our approach could simultaneously achieve two goals: precise size-control and functionalization of GNPs without the ligand-exchange step.
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Affiliation(s)
- Van-Phuoc Thai
- Faculty of Mechanical Engineering, HCMC University of Technology and Education Ho Chi Minh City 71307 Vietnam
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology Nagaoka 940-2188 Japan
| | - Hieu Duy Nguyen
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Nobuo Saito
- Department of Materials Science and Bioengineering, Nagaoka University of Technology Nagaoka 940-2188 Japan
| | - Kazumasa Takahashi
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology Nagaoka 940-2188 Japan
| | - Toru Sasaki
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology Nagaoka 940-2188 Japan
- Department of Science of Technology Innovation, Nagaoka University of Technology Nagaoka 940-2188 Japan
| | - Takashi Kikuchi
- Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology Nagaoka 940-2188 Japan
- Department of Nuclear Technology, Nagaoka University of Technology Nagaoka 940-2188 Japan
- Extreme Energy-Density Research Institute, Nagaoka University of Technology Nagaoka 940-2188 Japan
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Buglak AA, Kononov AI. Silver cluster interactions with Pterin: Complex structure, binding energies and spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121467. [PMID: 35689845 DOI: 10.1016/j.saa.2022.121467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/14/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Metal nanoclusters (NCs) are widely present today in biosensing, bioimaging, and diagnostics due to their small size, great biocompatibility, and sensitivity to the biomolecular environment. Silver (Ag) NCs often possess intense fluorescence, photostability, and low photobleaching, which is in high demand during the detection of organic molecules. Pterins are small compounds, which are used in medicine as biomarkers of oxidative stress, cardiovascular diseases, neurotransmitter synthesis, inflammation and immune system activation. It is experimentally possible to detect pterin (Ptr) through the adsorption on Ag colloid. We optimized geometries and evaluated the binding energy in Ptr-Agnq complexes (n = 1-6; q = 0, +1, +2) using quantum chemistry methods. Different Ptr atoms were preferential for silver attachment depending on NC charge and size. The highest Eb was obtained for the complexes between the Ptr0 and Ag32+ (-50.8 kcal mol-1), between Ptr-1 and Ag32+ (-64.8 kcal mol-1), which means that these complexes should be formed preferably in aqueous solutions in acidic and alkaline media, respectively. The colorimetric detection of pterin with silver clusters does not seem to be promising. However, intense S0→S1 transitions of Ag5+ complexes look promising for luminescent Ptr detection. SERS detection of pterin is better to be done at pH > 8 since deprotonated pterin Raman undergo more dramatic changes upon addition of Ag than the neutral pterin. The characteristics of absorption and vibrational spectra of silver-pterin should be exploited during biosensor development.
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Affiliation(s)
- Andrey A Buglak
- St. Petersburg State University, 199034 Saint-Petersburg, Russia; Kazan Federal University, 420008 Kazan, Russia.
| | - Alexei I Kononov
- St. Petersburg State University, 199034 Saint-Petersburg, Russia
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11
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Bahota AS, Singh KK, Kumar R, Tandon P. Ab-initio simulation of the interaction of gold nanoclusters with glycine. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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A magnetostrictive self-powered biosensor based on Au-BaTiO3-FeGa & PDMS. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Intermolecular interaction study of Ag-amino acid biomolecular complex using vibrational spectroscopic techniques and density functional theory method. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Understanding the mechanism of thioguanine's binding to Ag6 and bimetallic (Ag3–Au3 and Ag3–Cu3) clusters. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Vávrová A, Čapková T, Kuřitka I, Vícha J, Münster L. One-step synthesis of gold nanoparticles for catalysis and SERS applications using selectively dicarboxylated cellulose and hyaluronate. Int J Biol Macromol 2022; 206:927-938. [PMID: 35292283 DOI: 10.1016/j.ijbiomac.2022.03.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 11/05/2022]
Abstract
Properties and applications of gold nanoparticles (AuNPs) depend on their characteristics which are intrinsically connected to the reducing and capping agents used in their synthesis. Although polysaccharides are commonly used for Au salt reduction, the control over the result is often limited. Here, the selectively dicarboxylated cellulose (DCC) and hyaluronate (DCH) with adjustable composition and molecular weight are used for the first time as reducing and capping agents for AuNPs preparation in an environmental friendly one-step synthesis. Mechanism of reduction and structure-function relationships between the composition of oxidized polysaccharides and properties of formed AuNPs are elucidated and the variances in the macromolecular architecture of dicarboxypolysaccharides are applied to guide the growth of AuNPs. While the homogenous structure and high density of carboxyl groups of fully-oxidized DCC induced isotropic growth of small and uniform AuNPs with good catalytic performance (d = ~20 nm, TOF = 7.3 min-1, k = 1.47 min-1), the lower stabilizing potential and slower reduction rates of the DCH induced the anisotropic growth of larger polyhedral ~50 nm nanoparticles, which increased the Surface-Enhanced Raman Scattering efficacy (9× stronger Raman signals on average compared to AuDCC). The use of dicarboxypolysaccharides with adjustable composition and properties thus introduced a new degree of freedom for the preparation of AuNPs with desired properties.
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Affiliation(s)
- Alžběta Vávrová
- Centre of Polymer Systems, Tomas Bata University in Zlín, tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic
| | - Tereza Čapková
- Centre of Polymer Systems, Tomas Bata University in Zlín, tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic
| | - Ivo Kuřitka
- Centre of Polymer Systems, Tomas Bata University in Zlín, tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic
| | - Jan Vícha
- Centre of Polymer Systems, Tomas Bata University in Zlín, tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic.
| | - Lukáš Münster
- Centre of Polymer Systems, Tomas Bata University in Zlín, tř. Tomáše Bati 5678, 760 01 Zlín, Czech Republic.
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16
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Bartolomé M, Contento AM, Villaseñor MJ, Ríos Á. Innovative and versatile nanoplasmonic approach for the full sensing of proteinogenic aminoacids in nutritional supplements. Talanta 2022; 237:122976. [PMID: 34736698 DOI: 10.1016/j.talanta.2021.122976] [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: 07/27/2021] [Revised: 10/10/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022]
Abstract
A current nourishment issue is the development of smart and reliable analytical strategies to control in a simple way main bioactive compounds of nutritional supplements whose increasing use is deemed a trend nowadays. With this aim a quick and highly sensitive plasmonic sensor using simple citrate coated gold nanoparticles (AuNPs) as optical probe, was developed for both qualitative and quantitative global assessment of all the proteinogenic amino acids in nutritional supplements. AuNPs of five different sizes (from 19 to 74 nm) were synthesized, characterized and evaluated as optimal transductor element for the sensing approach. Critical physic-chemical conditions controlling aggregation (pH, incubation time, AuNPs amount and ionic strength) were investigated on the main five types of aas, structurally different attending to their R-side chain and with expected distinctive behaviour on aggregation mechanisms, which are also discussed. All proteinogenic amino acids induced AuNPs aggregation at low pH (2.5) causing a change in the colour solution from red to blue, as well as a redshift in the plasmon band from 518 nm (disperse NPs) to 650 nm (aggregated NPs). Based on this sensing approach two different strategies are allowed, a preliminary qualitative/semi-quantitative screening just by the naked eye (simple spot test) and a second quantitative confirmation procedure using the analytical signal (A650/A518). Reliability of quantitative approach was assessed by an exhaustive validation procedure, where matrix effects and potential interferences usually present in commercial samples and affecting the analytical signal were mainly focussed. The results for the analysis of complex nutritional samples were validated by means of a statistical comparison with those ones of the official reference Kjeldahl method (paired Student test-t) at a 95% confidence level. This is the first sensing approach able to provide the global estimation of proteinogenic aas amount based on their simply AuNPs aggregation induction, irrespectively of their R-side chain structure.
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Affiliation(s)
- Manuel Bartolomé
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071, Ciudad Real, Spain; Regional Institute for Applied Chemistry Research (IRICA), 13071, Ciudad Real, Spain.
| | - Ana M Contento
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071, Ciudad Real, Spain; Regional Institute for Applied Chemistry Research (IRICA), 13071, Ciudad Real, Spain.
| | - María J Villaseñor
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071, Ciudad Real, Spain; Department of Analytical Chemistry, Industrial Engineering School, University of Castilla-La Mancha, 13071, Ciudad Real, Spain.
| | - Ángel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Chemical Science and Technology, University of Castilla-La Mancha, 13071, Ciudad Real, Spain; Regional Institute for Applied Chemistry Research (IRICA), 13071, Ciudad Real, Spain.
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17
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Buglak AA, Kononov AI. Silver Cluster Interactions with Tyrosine: Towards Amino Acid Detection. Int J Mol Sci 2022; 23:634. [PMID: 35054820 PMCID: PMC8775517 DOI: 10.3390/ijms23020634] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 12/28/2022] Open
Abstract
Tyrosine (Tyr) is involved in the synthesis of neurotransmitters, catecholamines, thyroid hormones, etc. Multiple pathologies are associated with impaired Tyr metabolism. Silver nanoclusters (Ag NCs) can be applied for colorimetric, fluorescent, and surface-enhanced Raman spectroscopy (SERS) detection of Tyr. However, one should understand the theoretical basics of interactions between Tyr and Ag NCs. Thereby, we calculated the binding energy (Eb) between Tyr and Agnq (n = 1-8; q = 0-2) NCs using the density functional theory (DFT) to find the most stable complexes. Since Ag NCs are synthesized on Tyr in an aqueous solution at pH 12.5, we studied Tyr-1, semiquinone (SemiQ-1), and Tyr-2. Ag32+ and Ag5+ had the highest Eb. The absorption spectrum of Tyr-2 significantly red-shifts with the attachment of Ag32+, which is prospective for colorimetric Tyr detection. Ag32+ interacts with all functional groups of SemiQ-1 (phenolate, amino group, and carboxylate), which makes detection of Tyr possible due to band emergence at 1324 cm-1 in the vibrational spectrum. The ground state charge transfer between Ag and carboxylate determines the band emergence at 1661 cm-1 in the Raman spectrum of the SemiQ-1-Ag32+ complex. Thus, the prospects of Tyr detection using silver nanoclusters were demonstrated.
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Affiliation(s)
- Andrey A. Buglak
- The Faculty of Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia;
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18
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Pattnaik S, Chaudhury B, Mohapatra M. Exploration of Inorganic Materials with Antiviral Properties. MATERIALS HORIZONS: FROM NATURE TO NANOMATERIALS 2022:53-74. [DOI: 10.1007/978-981-16-4372-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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19
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Xiao X, Chen C, Zhang Y, Kong H, An R, Li S, Liu W, Ji Q. Chiral Recognition on Bare Gold Surfaces by Quartz Crystal Microbalance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiangyun Xiao
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Chao Chen
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Yehao Zhang
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Huihui Kong
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Rong An
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Shuang Li
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Wei Liu
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Qingmin Ji
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
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20
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Xiao X, Chen C, Zhang Y, Kong H, An R, Li S, Liu W, Ji Q. Chiral Recognition on Bare Gold Surfaces by Quartz Crystal Microbalance. Angew Chem Int Ed Engl 2021; 60:25028-25033. [PMID: 34545674 DOI: 10.1002/anie.202110187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 11/06/2022]
Abstract
Quartz crystal microbalance (QCM) is one of the powerful tools for the studies of molecular recognition and chiral discrimination. Its efficiency mainly relies on the design of the functional sensitive layer on the electrode surface. However, the organic sensitive layer may easily cause dissipation of oscillation or detachment and weaken the signal transfer during the molecular recognition processes. In this work, we reveal for the first time that the bare metal surface without the organic selector layer has the capability for chiral recognition in the QCM system. During the adsorption of various chiral amino acids, relatively higher selectivity of D-enantiomers on gold (Au) surface was shown by the QCM detection. Based on analyses of the surface crystalline structure and density functional theory calculations, we demonstrate that the chiral nature of Au surface plays an important role in the selective binding of specific D-amino acids. These results may open new insights on chiral detection by QCM system. It will also promote the construction of novel chiral sensing systems with both efficient detection and separation capability.
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Affiliation(s)
- Xiangyun Xiao
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Chao Chen
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Yehao Zhang
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Huihui Kong
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Rong An
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Shuang Li
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Wei Liu
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Qingmin Ji
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
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21
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Rodrigues JSM, Rodrigues AM, do Nascimento Souza D, de Novais ERP, Rodrigues AM, de Oliveira GCA, de Lima Ferreira Novais A. DFT calculations to investigate silver ions as a virucide from SARS-CoV-2. J Mol Model 2021; 27:323. [PMID: 34643800 PMCID: PMC8510886 DOI: 10.1007/s00894-021-04941-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/29/2021] [Indexed: 01/18/2023]
Abstract
The world has face the COVID-19 pandemic which has already caused millions of death. Due to the urgency in fighting the virus, we study five residues of free amino acids present in the structure of the SARS-CoV-2 spike protein (S). We investigated the spontaneous interaction between amino acids and silver ions (Ag+), considering these ions as a virucide chemical agent for SARS-CoV-2. The amino acid-Ag+ systems were investigated in a gaseous medium and a simulated water environment was described with a continuum model (PCM) the calculations were performed within the framework of density functional theory (DFT). Calculations related to the occupied orbitals of higher energy showed that Ag+ has a tendency to interact with the nitrile groups (-NH). The negative values of the Gibbs free energies show that the interaction process between amino acids-Ag+ in both media occurs spontaneously. There is a decrease in Gibbs free energy from the amino acid-Ag+ interactions immersed in a water solvation simulator.
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22
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Chen KL, Yang ZY, Lin CW. A magneto-optical biochip for rapid assay based on the Cotton-Mouton effect of γ-Fe 2O 3@Au core/shell nanoparticles. J Nanobiotechnology 2021; 19:301. [PMID: 34598682 PMCID: PMC8485105 DOI: 10.1186/s12951-021-01030-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Background In the past decades, different diseases and viruses, such as Ebola, MERS and COVID-19, impacted the human society and caused huge cost in different fields. With the increasing threat from the new or unknown diseases, the demand of rapid and sensitive assay method is more and more urgent. Results In this work, we developed a magneto-optical biochip based on the Cotton–Mouton effect of γ-Fe2O3@Au core/shell magnetic nanoparticles. We performed a proof-of-concept experiment for the detection of the spike glycoprotein S of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The assay was achieved by measuring the magneto-optical Cotton–Mouton effect of the biochip. This magneto-optical biochip can not only be used to detect SARS-CoV-2 but also can be easily modified for other diseases assay. Conclusion The assay process is simple and the whole testing time takes only 50 min including 3 min for the CM rotation measurement. The detection limit of our method for the spike glycoprotein S of SARS-CoV-2 is estimated as low as 0.27 ng/mL (3.4 pM). Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01030-z. We developed a biochip for rapid assay based on the magneto-optical Cotton–Mouton (CM) effect of γ-Fe2O3@Au core/shell magnetic nanoparticles. The easy and quick assay for detection of the spike glycoprotein S of SARS-CoV-2 was demonstrated, and whole process takes approximately 50 min including 3 min for the CM rotation measurement with the detection limit of 0.27 ng/mL (3.4 pM). This magneto-optical biochip we proposed can be easily modified to use as assays for other diseases.
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Affiliation(s)
- Kuen-Lin Chen
- Institute of Nanoscience, National Chung Hsing University, 250, Kuo Kuang Rd., Taichung, 402, Taiwan, ROC. .,Department of Physics, National Chung Hsing University, Taichung, Taiwan.
| | - Zih-Yan Yang
- Department of Physics, National Chung Hsing University, Taichung, Taiwan
| | - Chin-Wei Lin
- Graduate Institute of Applied Physics, National Taiwan University, Taipei, Taiwan
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23
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Drescher D, Büchner T, Schrade P, Traub H, Werner S, Guttmann P, Bachmann S, Kneipp J. Influence of Nuclear Localization Sequences on the Intracellular Fate of Gold Nanoparticles. ACS NANO 2021; 15:14838-14849. [PMID: 34460234 DOI: 10.1021/acsnano.1c04925] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Directing nanoparticles to the nucleus by attachment of nuclear localization sequences (NLS) is an aim in many applications. Gold nanoparticles modified with two different NLS were studied while crossing barriers of intact cells, including uptake, endosomal escape, and nuclear translocation. By imaging of the nanoparticles and by characterization of their molecular interactions with surface-enhanced Raman scattering (SERS), it is shown that nuclear translocation strongly depends on the particular incubation conditions. After an 1 h of incubation followed by a 24 h chase time, 14 nm gold particles carrying an adenoviral NLS are localized in endosomes, in the cytoplasm, and in the nucleus of fibroblast cells. In contrast, the cells display no nanoparticles in the cytoplasm or nucleus when continuously incubated with the nanoparticles for 24 h. The ultrastructural and spectroscopic data indicate different processing of NLS-functionalized particles in endosomes compared to unmodified particles. NLS-functionalized nanoparticles form larger intraendosomal aggregates than unmodified gold nanoparticles. SERS spectra of cells with NLS-functionalized gold nanoparticles contain bands assigned to DNA and were clearly different from those with unmodified gold nanoparticles. The different processing in the presence of an NLS is influenced by a continuous exposure of the cells to nanoparticles and an ongoing nanoparticle uptake. This is supported by mass-spectrometry-based quantification that indicates enhanced uptake of NLS-functionalized nanoparticles compared to unmodified particles under the same conditions. The results contribute to the optimization of nanoparticle analysis in cells in a variety of applications, e.g., in theranostics, biotechnology, and bioanalytics.
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Affiliation(s)
- Daniela Drescher
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Tina Büchner
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Petra Schrade
- Core Facility für Elektronenmikroskopie, Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Heike Traub
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Stephan Werner
- Department of X-ray Microscopy, Helmholtz-Zentrum Berlin für Materialien und Energie, BESSY II, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Peter Guttmann
- Department of X-ray Microscopy, Helmholtz-Zentrum Berlin für Materialien und Energie, BESSY II, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Sebastian Bachmann
- Core Facility für Elektronenmikroskopie, Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Department of Anatomy, Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Janina Kneipp
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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24
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Hang NTN, Si NT, Nguyen MT, Nhat PV. Adsorption/Desorption Behaviors and SERS Chemical Enhancement of 6-Mercaptopurine on a Nanostructured Gold Surface: The Au 20 Cluster Model. Molecules 2021; 26:5422. [PMID: 34500855 PMCID: PMC8434346 DOI: 10.3390/molecules26175422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 01/24/2023] Open
Abstract
Computational approaches are employed to elucidate the binding mechanism and the SERS phenomenon of 6-mercaptopurine (6MP) adsorbed on the tetrahedral Au20 cluster as a simple model for a nanostructured gold surface. Computations are carried out in both vacuum and aqueous environments using a continuum model. In the gaseous phase and neutral conditions, interaction of 6MP with the gold cluster is mostly dominated by a covalent Au-S bond and partially stabilized by the Au⋅⋅⋅H-N coupling. However, in acidic solution, the nonconventional Au⋅⋅⋅H-S hydrogen-bond becomes the most favorable binding mode. The 6MP affinity for gold clusters decreases in the order of vacuum > neutral solution > acidic medium. During the adsorption, the energy gap of Au20 substantially declines, leading to an increase in its electrical conductivity, which can be converted to an electrical noise. Moreover, such interaction is likely a reversible process and triggered by either the low pH in sick tissues or the presence of cysteine residues in protein matrices. While N-H bending and stretching vibrations play major roles in the SERS phenomenon of 6MP on gold surfaces in neutral solution, the strongest enhancement in acidic environment is mostly due to an Au⋅⋅⋅H-S coupling, rather than an aromatic ring-gold surface π overlap as previously proposed.
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Affiliation(s)
- Nguyen Thi Nhat Hang
- Faculty of Food Science and Technology, Thu Dau Mot University, Thu Dau Mot 590000, Vietnam
| | - Nguyen Thanh Si
- Department of Chemistry, Can Tho University, Can Tho 900000, Vietnam
| | - Minh Tho Nguyen
- Institute for Computational Science and Technology (ICST), Ho Chi Minh City 700000, Vietnam
| | - Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho 900000, Vietnam
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25
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Báez-Cruz R, Baptista LA, Ntim S, Manidurai P, Espinoza S, Ramanan C, Cortes-Huerto R, Sulpizi M. Role of pH in the synthesis and growth of gold nanoparticles using L-asparagine: a combined experimental and simulation study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:254005. [PMID: 33845472 DOI: 10.1088/1361-648x/abf6e3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
The use of biomolecules as capping and reducing agents in the synthesis of metallic nanoparticles constitutes a promising framework to achieve desired functional properties with minimal toxicity. The system's complexity and the large number of variables involved represent a challenge for theoretical and experimental investigations aiming at devising precise synthesis protocols. In this work, we use L-asparagine (Asn), an amino acid building block of large biomolecular systems, to synthesise gold nanoparticles (AuNPs) in aqueous solution at controlled pH. The use of Asn offers a primary system that allows us to understand the role of biomolecules in synthesising metallic nanoparticles. Our results indicate that AuNPs synthesised in acidic (pH 6) and basic (pH 9) environments exhibit somewhat different morphologies. We investigate these AuNPs via Raman scattering experiments and classical molecular dynamics simulations of zwitterionic and anionic Asn states adsorbing on (111)-, (100)-, (110)-, and (311)-oriented gold surfaces. A combined analysis suggests that the underlying mechanism controlling AuNPs geometry correlates with amine's preferential adsorption over ammonium groups, enhanced upon increasing pH. Our simulations reveal that Asn (both zwitterionic and anionic) adsorption on gold (111) is essentially different from adsorption on more open surfaces. Water molecules strongly interact with the gold face-centred-cubic lattice and create traps, on the more open surfaces, that prevent the Asn from diffusing. These results indicate that pH is a relevant parameter in green-synthesis protocols with the capability to control the nanoparticle's geometry, and pave the way to computational studies exploring the effect of water monolayers on the adsorption of small molecules on wet gold surfaces.
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Affiliation(s)
- Ricardo Báez-Cruz
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department of Physics, Faculty of Physical and Mathematical Science, University of Concepcion, PO Box 160-C, Concepcion, Chile
| | - Luis A Baptista
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Samuel Ntim
- Institut für Physik, Johannes Gutenberg Universität, Staudingerweg 7, 55128-Mainz, Germany
| | - Paulraj Manidurai
- Department of Physics, Faculty of Physical and Mathematical Science, University of Concepcion, PO Box 160-C, Concepcion, Chile
| | - Shirly Espinoza
- ELI Beamlines, Institute of Physics, Czech Academy of Science, Za Radnici 835, 25241 Dolni Brezany, Czech Republic
| | - Charusheela Ramanan
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Marialore Sulpizi
- Institut für Physik, Johannes Gutenberg Universität, Staudingerweg 7, 55128-Mainz, Germany
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26
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Pilevar M, Kim KT, Lee WH. Recent advances in biosensors for detecting viruses in water and wastewater. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124656. [PMID: 33308919 DOI: 10.1016/j.jhazmat.2020.124656] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/12/2020] [Accepted: 11/20/2020] [Indexed: 05/09/2023]
Abstract
As there is a considerable number of virus particles in wastewater which cause numerous infectious diseases, it is necessary to eliminate viruses from domestic wastewater before it is released in the environment. In addition, on-site detection of viruses in wastewater can provide information on possible virus exposures in the community of a given wastewater catchment. For this purpose, the pre-detection of different strains of viruses in wastewaters is an essential environmental step. Epidemiological studies illustrate that viruses are the most challenging pathogens to be detected in water samples because of their nano sizes, discrete distribution, and low infective doses. Over the past decades, several methods have been applied for the detection of waterborne viruses which include polymerase chain reaction-based methods (PCR), enzyme-linked immunosorbent assay (ELISA), and nucleic acid sequence-based amplification (NASBA). Although they have shown acceptable performance in virus measurements, their drawbacks such as complicated and time-consuming procedures, low sensitivity, and high analytical cost call for alternatives. Although biosensors are still in an early stage for practical applications, they have shown great potential to become an alternative means for virus detection in water and wastewater. This comprehensive review addresses the different types of viruses found in water and the recent development of biosensors for detecting waterborne viruses.
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Affiliation(s)
- Mohsen Pilevar
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
| | - Keug Tae Kim
- Department of Environmental & Energy Engineering, The University of Suwon, 17 Wauan-gil, Bongdam-eup, Hwaseong-si, Gyeonggi-do 18323, South Korea
| | - Woo Hyoung Lee
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA.
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Tang J, Liu X, Ge Y, Wang F. Silver Nanoparticle-Anchored Human Hair Kerateine/PEO/PVA Nanofibers for Antibacterial Application and Cell Proliferation. Molecules 2021; 26:2783. [PMID: 34066875 PMCID: PMC8125921 DOI: 10.3390/molecules26092783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/01/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
The main core of wound treatment is cell growth and anti-infection. To accelerate the proliferation of fibroblasts in the wound and prevent wound infections, various strategies have been tried. It remains a challenge to obtain good cell proliferation and antibacterial effects. Here, human hair kerateine (HHK)/poly(ethylene oxide) (PEO)/poly(vinyl alcohol) (PVA) nanofibers were prepared using cysteine-rich HHK, and then, silver nanoparticles (AgNPs) were in situ anchored in the sulfur-containing amino acid residues of HHK. After the ultrasonic degradation test, HHK/PEO/PVA nanofibrous mats treated with 0.005-M silver nitrate were selected due to their relatively complete structures. It was observed by TEM-EDS that the sulfur-containing amino acids in HHK were the main anchor points of AgNPs. The results of FTIR, XRD and the thermal analysis suggested that the hydrogen bonds between PEO and PVA were broken by HHK and, further, by AgNPs. AgNPs could act as a catalyst to promote the thermal degradation reaction of PVA, PEO and HHK, which was beneficial for silver recycling and medical waste treatment. The antibacterial properties of AgNP-HHK/PEO/PVA nanofibers were examined by the disk diffusion method, and it was observed that they had potential antibacterial capability against Gram-positive bacteria, Gram-negative bacteria and fungi. In addition, HHK in the nanofibrous mats significantly improved the cell proliferation of NIH3T3 cells. These results illustrated that the AgNP-HHK/PEO/PVA nanofibrous mats exhibited excellent antibacterial activity and the ability to promote the proliferation of fibroblasts, reaching our target applications.
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Affiliation(s)
- Jiapeng Tang
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine, Nantong University, Nantong 226019, China; (J.T.); (X.L.)
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Xiwen Liu
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine, Nantong University, Nantong 226019, China; (J.T.); (X.L.)
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yan Ge
- School of Textile and Clothing, Nantong University, Nantong 226019, China
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University, Nantong 226019, China
| | - Fangfang Wang
- College of Fine Arts and Design, Yangzhou University, Yangzhou 225009, China;
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28
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Si NT, Nhung NTA, Bui TQ, Nguyen MT, Nhat PV. Gold nanoclusters as prospective carriers and detectors of pramipexole. RSC Adv 2021; 11:16619-16632. [PMID: 35479146 PMCID: PMC9031969 DOI: 10.1039/d1ra02172a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023] Open
Abstract
Pramipexole (PPX) is known in the treatment of Parkinson's disease and restless legs syndrome. We carried out a theoretical investigation on pramipexole–Au cluster interactions for the applications of drug delivery and detection. Three AuN clusters with sizes N = 6, 8 and 20 were used as reactant models to simulate the metallic nanostructured surfaces. Quantum chemical computations were performed in both gas phase and aqueous environments using density functional theory (DFT) with the PBE functional and the cc-pVDZ-PP/cc-pVTZ basis set. The PPX drug is mainly adsorbed on gold clusters via its nitrogen atom of the thiazole ring with binding energies of ca. −22 to −28 kcal mol−1 in vacuum and ca. −18 to −24 kcal mol−1 in aqueous solution. In addition to such Au–N covalent bonding, the metal–drug interactions are further stabilized by electrostatic effects, namely hydrogen-bond NH⋯Au contributions. Surface-enhanced Raman scattering (SERS) of PPX adsorbed on the Au surfaces and its desorption process were also examined. In comparison to Au8, both Au6 and Au20 clusters undergo a shorter recovery time and a larger change of energy gap, being possibly conducive to electrical conversion, thus signaling for detection of the drug. A chemical enhancement mechanism for SERS procedure was again established in view of the formation of nonconventional hydrogen interactions Au⋯H–N. The binding of PPX to a gold cluster is expected to be reversible and triggered by the presence of cysteine residues in protein matrices or lower-shifted alteration of environment pH. These findings would encourage either further theoretical probes to reach more accurate views on the efficiency of pramipexole–Au interactions, or experimental attempts to build appropriate gold nanostructures for practical trials, harnessing their potentiality for applications. Gold clusters as prospective carriers and detectors of pramipexole.![]()
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Affiliation(s)
- Nguyen Thanh Si
- Computational Chemistry Research Group, Ton Duc Thang University Ho Chi Minh City Vietnam .,Faculty of Applied Sciences, Ton Duc Thang University Ho Chi Minh City Vietnam
| | | | - Thanh Q Bui
- Department of Chemistry, University of Sciences, Hue University Hue Vietnam
| | - Minh Tho Nguyen
- Institute for Computational Science and Technology (ICST) Ho Chi Minh City Vietnam
| | - Pham Vu Nhat
- Department of Chemistry, Can Tho University Can Tho Vietnam
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29
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Vu Nhat P, Si NT, Tien NT, Nguyen MT. Theoretical Study of the Binding of the Thiol-Containing Cysteine Amino Acid to the Silver Surface Using a Cluster Model. J Phys Chem A 2021; 125:3244-3256. [PMID: 33861072 DOI: 10.1021/acs.jpca.0c11182] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Computational approaches within the framework of density functional theory (DFT) were employed to elucidate the binding mechanism of the cysteine amino acid on silver nanoparticles using several small silver clusters Agn with n = 2-10 as surface models. The long-range corrected LC-BLYP functional and correlation consistent basis sets cc-pVTZ-PP and cc-pVTZ were used to determine the structural features, energetics, and spectroscopic and electronic properties of the resulting complexes. In vacuum and highly acidic conditions, cysteine molecules prefer to adsorb on silver clusters via their amine group. In aqueous solution, the thiolate head turns out to be the most energetically favorable binding site. The cysteine affinity of silver clusters is greatly altered in different conditions, i.e., acidic solution < vacuum < aqueous solution, and is strongly dependent on the cluster size. As compared to free clusters, the frontier orbital energy gap of the ones capped by cysteine is significantly improved, which corresponds to stronger stability, especially in aqueous solution. The analysis of frontier orbitals also reveals that both forward and backward electron donations exhibit comparable contributions to the enhancement of stabilizing interactions. As for an application, a chemical enhancement mechanism of the surface-enhanced Raman scattering (SERS) procedure of cysteine by silver clusters was also analyzed.
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Affiliation(s)
- Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho 900000, Vietnam
| | - Nguyen Thanh Si
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | | | - Minh Tho Nguyen
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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Ghenaatian HR, Shakourian-Fard M, Kamath G. Interaction of Cu n, Ag n and Au n (n = 1-4) nanoparticles with ChCl:Urea deep eutectic solvent. J Mol Graph Model 2021; 105:107866. [PMID: 33677361 DOI: 10.1016/j.jmgm.2021.107866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/19/2021] [Accepted: 02/08/2021] [Indexed: 11/28/2022]
Abstract
In this study, the interaction of noble metal nanoparticles (Mn, M = Cu, Ag, and Au; n = 1-4) with ChCl:Urea deep eutectic solvent was investigated using density functional theory (DFT) method. We find that ChCl:Urea mostly interact with the Mn nanoparticles through [Cl]- anion ([Cl]-…Mn) and nonconventional H-bonds of C-H⋯Mn and N-H⋯Mn. NBO, QTAIM, NCI and EDA analyses show that [Cl]-…Mn interactions are stronger than the nonconventional H-bonds interactions. Our results indicate that the nature of [Cl]-…Mn interactions is electrostatic, while the nonconventional H-bonds of C-H⋯Mn and N-H⋯Mn are van der Waals in nature. The negative values of enthalpy (ΔH) and free energy (ΔG) for the ChCl:Urea…Mn complexes reveal that the formation of ChCl:Urea…Mn complexes is exothermic and proceeds spontaneously. The calculation of binding energy (ΔEb) of Mn nanoparticles with ChCl:Urea shows that the strength of interaction of Aun nanoparticles with ChCl:Urea is more favorable than Cun and Agn, following the order ChCl:Urea…Aun > ChCl:Urea…Cun > ChCl:Urea…Agn. Furthermore, the ΔEb, ΔH and ΔG values enhance with increasing nanoparticle size from n = 1 to n = 4, ChCl:Urea…M4> ChCl:Urea…M3> ChCl:Urea…M2> ChCl:Urea…M1 (M = Cu, Ag, and Au).
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Affiliation(s)
| | - Mehdi Shakourian-Fard
- Department of Chemical Engineering, Birjand University of Technology, Birjand, P.O. Box 97175/569, Iran
| | - Ganesh Kamath
- Dalzierfiver LLC, 3500 Carlfied St, EL Sobrante, CA, 94803, USA
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31
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Pem B, Toma M, Vrček V, Vinković Vrček I. Combined NMR and Computational Study of Cysteine Oxidation during Nucleation of Metallic Clusters in Biological Systems. Inorg Chem 2021; 60:4144-4161. [PMID: 33657797 DOI: 10.1021/acs.inorgchem.1c00321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The widespread biomedical applications of silver and gold nanoparticles (AgNPs and AuNPs, respectively) prompt the need for mechanistic evaluation of their interaction with biomolecules. In biological media, metallic NPs are known to transform by various pathways, especially in the presence of thiols. The interplay between metallic NPs and thiols may lead to unpredictable consequences for the health status of an organism. This study explored the potential events occurring during biotransformation, dissolution, and reformation of NPs in the thiol-rich biological media. The study employed a model system evaluating the interaction of cysteine with small-sized AgNPs and AuNPs. The interplay of cysteine on transformation and reformation pathways of these NPs was experimentally investigated by nuclear magnetic resonance (NMR) spectroscopy and supported by light scattering techniques and transmission electron microscopy (TEM). As the main outcome, Ag- or Au-catalyzed oxidation of cysteine to cystine was found to occur through generation of reactive oxygen species (ROS). Computational simulations confirmed this mechanism and the role of ROS in the oxidative dimerization of biothiol during NPs reformation. The obtained results represent valuable mechanistic data about the complex events during the transport of metallic NPs in thiol-rich biological systems that should be considered for the future biomedical applications of metal-based nanomaterials.
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Affiliation(s)
- Barbara Pem
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
| | - Mateja Toma
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
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32
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Morad R, Akbari M, Rezaee P, Koochaki A, Maaza M, Jamshidi Z. First principle simulation of coated hydroxychloroquine on Ag, Au and Pt nanoparticles. Sci Rep 2021; 11:2131. [PMID: 33483539 PMCID: PMC7822900 DOI: 10.1038/s41598-021-81617-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 01/06/2021] [Indexed: 12/27/2022] Open
Abstract
From the first month of the COVID-19 pandemic, the potential antiviral properties of hydroxychloroquine (HCQ) and chloroquine (CQ) against SARS-CoV-2 suggested that these drugs could be the appropriate therapeutic candidates. However, their side effects directed clinical tests towards optimizing safe utilization strategies. The noble metal nanoparticles (NP) are promising materials with antiviral and antibacterial properties that can deliver the drug to the target agent, thereby reducing the side effects. In this work, we applied both the quantum mechanical and classical atomistic molecular dynamics approaches to demonstrate the adsorption properties of HCQ/CQ on Ag, Au, AgAu, and Pt nanoparticles. We found the adsorption energies of HCQ/CQ towards nanoparticles have the following trend: PtNP > AuNP > AuAgNP > AgNP. This shows that PtNP has the highest affinity in comparison to the other types of nanoparticles. The (non)perturbative effects of this drug on the plasmonic absorption spectra of AgNP and AuNP with the time-dependent density functional theory. The effect of size and composition of NPs on the coating with HCQ and CQ were obtained to propose the appropriate candidate for drug delivery. This kind of modeling could help experimental groups to find efficient and safe therapies.
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Affiliation(s)
- Razieh Morad
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa.,Material Research Division, Nanoscience African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, 7129, South Africa
| | - Mahmood Akbari
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa.,Material Research Division, Nanoscience African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, 7129, South Africa
| | - Parham Rezaee
- Chemistry Department, Sharif University of Technology, 11155-9516, Tehran, Iran
| | - Amin Koochaki
- Chemistry Department, Sharif University of Technology, 11155-9516, Tehran, Iran
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanoscience and Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa. .,Material Research Division, Nanoscience African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset West, 7129, South Africa.
| | - Zahra Jamshidi
- Chemistry Department, Sharif University of Technology, 11155-9516, Tehran, Iran.
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33
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DFT study of cyclic glycine-alanine dipeptide binding to gold nanoclusters. J Mol Graph Model 2020; 103:107823. [PMID: 33373854 DOI: 10.1016/j.jmgm.2020.107823] [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: 05/12/2020] [Revised: 11/10/2020] [Accepted: 12/05/2020] [Indexed: 12/21/2022]
Abstract
In this work, we studied the interactions between cyclic glycine-alanine dipeptide c(GA) and gold nanoclusters (AunNCs, where n = 2-10) using density functional theory (DFT), atoms-in-molecules theory (AIM), and natural bond orbital analysis (NBO). This dipeptide (DP) consists of two amino acid residues (glycine and alanine); thus, the preference of both residues for binding to gold atoms was examined. The preference of alanine residue to the studied AunNCs was found to be greater than that of glycine residue. Two types of interactions were exhibited between the AunNCs and c(GA), the partially-covalent partially-electrostatic type and electrostatic interaction. Performance of two DFT functionals and different basis sets is assessed. The results benchmark the importance of the DFT functional with dispersion and long-range corrections, as well as the polarization functions in the basis sets for the gold lusters-peptide binding. The binding energy (ΔEbind) values of the c(GA)-AunNCs complexes in gas and water implicit solvent were compared with those previously published for cyclic glycine-glycine DP-AunNCs complexes. It was found that the ΔEbind values of the former complexes are greater than those of latter ones in water solvent.
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34
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Safaei S, Kassaee MZ, Khorshidvand N, Ahmadi A. Effects of H-bonding and structural constituents on the acidity and potential "anticancer activity" of D-mandelonitrile-β-D-glucuronic acid by density functional theory. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04204-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Buglak AA, Kononov AI. Comparative study of gold and silver interactions with amino acids and nucleobases. RSC Adv 2020; 10:34149-34160. [PMID: 35519047 PMCID: PMC9056802 DOI: 10.1039/d0ra06486f] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022] Open
Abstract
Metal nanoclusters (NCs) have gained much attention in the last decade. In solution, metal nanoclusters can be stabilized by proteins, and, thus, exhibit many advantages in biocatalysis, biosensing, and bioimaging. In spite of much progress in the synthesis of polypeptide-stabilized gold (Au) clusters, their structure, as well as amino acid-cluster and amino acid-Au+ interactions, remain poorly understood. It is not entirely clear which amino acid (AA) residues and sites in the protein are preferred for binding. The understanding of NC-protein interactions and how they evolve in the polypeptide templates is the key to designing Au NCs. In this work, binding of gold ion Au+ and diatomic neutral gold nanocluster Au2 with a full set of α-proteinogenic amino acids is studied using Density Functional Theory (DFT) and the ab initio RI-MP2 method in order to find the preferred sites of gold interaction in proteins. We demonstrated that the interaction of gold cations and clusters with protonated and deprotonated amino acid residues do not differ greatly. The binding affinity of AAs to the Au2 cluster increases in the following order: Cys(-H+) > Asp(-H+) > Tyr(-H+) > Glu(-H+) > Arg > Gln, His, Met ≫ Asn, Pro, Trp > Lys, Tyr, Phe > His(+H+) > Asp > Lys(+H+) > Glu, Leu > Arg(+H+) > Ile, Val, Ala > Thr, Ser > Gly, Cys, which agrees with the available experimental data that gold cluster synthesis occurs in a wide range of pH - amino acid residues with different protonation states are involved in this process. The significant difference in the binding energy of metal atoms with nucleobases and amino acids apparently means that unlike on DNA templates, neutral metal atoms are strongly bound to amino acid residues and can't freely diffuse in a polypeptide globula. This fact allows one to conclude that formation of metal NCs in proteins occurs through the nucleation of reduced Au atoms bound to the neighboring amino acid residues, and the flexibility of the amino acid residue side-chains and protein chain as a whole plays a significant role in this process.
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Affiliation(s)
- Andrey A Buglak
- St. Petersburg State University 199034 Saint-Petersburg Russia
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36
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Nhat PV, Si NT, Tram NTT, Duong LV, Nguyen MT. Elucidating the binding mechanism of thione-containing mercaptopurine and thioguanine drugs to small gold clusters. J Comput Chem 2020; 41:1748-1758. [PMID: 32357385 DOI: 10.1002/jcc.26216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/21/2022]
Abstract
Density functional theory methods were employed to clarify the adsorption/desorption behaviors of the thione-containing mercaptopurine and thioguanine drugs on the gold surface using both small Au6 and Au8 clusters as model reactants. Structural features, thermodynamic parameters, bonding characteristics, and electronic properties of the resulting complexes were investigated using the Perdew-Burke-Ernzerhof (PBE) and LC-BLYP functionals along with correlation-consistent basis sets, namely cc-pVDZ-PP for gold and cc-pVTZ for non-metals. Computed results show that the drug molecules tend to anchor on the gold cluster at the S atom with binding energies around -34 to -40 kcal/mol (in vacuum) and - 28 to -32 kcal/mol (in aqueous solution). As compared to Au8 , Au6 undergoes a shorter recovery time and a larger change of energy gap that could be converted to an electrical signal for selective detection of the drugs. Furthermore, interactions between the drugs and gold clusters are reversible processes and a drug release mechanism was also proposed. Accordingly, the drugs are able to separate from the gold surface due to either a slight change of pH in tumor cells or the presence of cysteine residues in protein matrices.
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Affiliation(s)
- Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho, Vietnam
| | - Nguyen Thanh Si
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Department of Chemistry, Can Tho University, Can Tho, Vietnam
| | - Nguyen Thi Thu Tram
- Department of Chemistry, Can Tho University of Medicine and Pharmacy, Can Tho, Vietnam
| | - Long Van Duong
- Laboratory of Molecular Science and Nanomaterials, Institute for Computational Science and Technology, Ho Chi Minh City, Vietnam
| | - Minh Tho Nguyen
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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37
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Zhang XL, Zhang L, Chen JH, Li CY, Sun WM. On the Interaction between Superatom Al 12Be and DNA Nucleobases/Base Pairs: Bonding Nature and Potential Applications in O 2 Activation and CO Oxidation. ACS OMEGA 2020; 5:15325-15334. [PMID: 32637806 PMCID: PMC7331033 DOI: 10.1021/acsomega.0c01375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
The interaction between quasi-chalcogen superatom Al12Be and DNA nucleobases/base pairs has been explored by searching for the most stable Al12Be-X (X = DNA bases and base pairs) complexes. Our results reveal that Al12Be prefers to combine with guanine by two Al-O and Al-N bonds rather than the other DNA bases, no matter in free state or base pair. The formed Al-N and Al-O bonds between Al12Be and DNA bases proved to be strong polar covalent bonds by the Wiberg bond index, nature bond orbitals, atoms in molecules theory, localized molecular orbitals, and electron localization functions analyses. More importantly, it is found that the formed global minimum of Al12Be-G has the ability to activate an oxygen molecule into a peroxide dianion 1O2 2-, which can further catalyze the CO oxidation via the Eley-Rideal mechanism with a small energy barrier of 7.78 kcal/mol. We hope that this study could not only provide an in-depth understanding on the intermolecular interaction between metallic superatoms and DNA at the molecular level but also attract more interest in designing and synthesizing superatom-based heterogeneous catalysts with DNA/nucleobases as basic building blocks.
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Affiliation(s)
- Xiao-Ling Zhang
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Li Zhang
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Jing-Hua Chen
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Chun-Yan Li
- The
School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Wei-Ming Sun
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
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38
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Requejo KI, Liopo AV, Zubarev ER. Gold Nanorod Synthesis with Small Thiolated Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3758-3769. [PMID: 32216357 DOI: 10.1021/acs.langmuir.0c00302] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Size and shape tunability have been widely demonstrated for gold nanorods (AuNRs), but reproducible and reliable protocols for the synthesis of small nanocrystals with high yield are still needed for potential biomedical applications. Here, we present novel seed-mediated and seedless protocols for gold nanorods by incorporating bioadditives or small thiolated molecules during the growth stage. The bioadditives glutathione (GSH), oxidized glutathione (GSSG), l-cysteine (l-cys), and l-methionine (l-met) are utilized in nanomolar and micromolar concentrations to modify the aspect ratio of AuNRs in a reproducible form. Overall, smaller aspect ratios are achieved for both synthetic approaches due to reduction in length or increment in length and width depending on the method, type of bioadditive and the strength of its interaction with the nanorod surface. For the seeded synthesis, only GSSG produces large nanorods in high yield, whereas for the seedless method GSH and GSSG form small nanorods with higher quality when compared to controls.
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Affiliation(s)
- Katherinne I Requejo
- Department of Chemistry, Rice University, 6100 S Main Street, Houston, Texas 77005, United States
| | - Anton V Liopo
- Department of Chemistry, Rice University, 6100 S Main Street, Houston, Texas 77005, United States
| | - Eugene R Zubarev
- Department of Chemistry, Rice University, 6100 S Main Street, Houston, Texas 77005, United States
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39
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Controlled Synthesis of Au Nanocrystals-Metal Selenide Hybrid Nanostructures toward Plasmon-Enhanced Photoelectrochemical Energy Conversion. NANOMATERIALS 2020; 10:nano10030564. [PMID: 32245031 PMCID: PMC7153708 DOI: 10.3390/nano10030564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 01/03/2023]
Abstract
A simple method for the controllable synthesis of Au nanocrystals–metal selenide hybrid nanostructures via amino acid guiding strategy is proposed. The results show that the symmetric overgrowth mode of PbSe shells on Au nanorods can be precisely manipulated by only adjusting the initial concentration of Pb2+. The shape of Au–PbSe hybrids can evolve from dumbbell-like to yolk-shell. Interestingly, the plasmonic absorption enhancement could be tuned by the symmetry of these hybrid nanostructures. This provides an effective pathway for maneuvering plasmon-induced energy transfer in metal–semiconductor hybrids. In addition, the photoactivities of Au–PbSe nanorods sensitized TiO2 electrodes have been further evaluated. Owing to the synergism between effective plasmonic enhancement effect and efficient interfacial charge transfer in these hybrid nanostructures, the Au–PbSe yolk-shell nanorods exhibit an outstanding photocurrent activity. Their photocurrent density is 4.38 times larger than that of Au–PbSe dumbbell-like nanorods under light irradiation at λ > 600 nm. As a versatile method, the proposed strategy can also be employed to synthesize other metal–selenide hybrid nanostructures (such as Au–CdSe, Au–Bi2Se3 and Au–CuSe).
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40
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Taha M, Lee MJ. Influence of the alanine side-chain methyl group on the peptide-gold nanoparticles interactions. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Nhat PV, Nguyen PTN, Si NT. A computational study of thiol-containing cysteine amino acid binding to Au 6 and Au 8 gold clusters. J Mol Model 2020; 26:58. [PMID: 32055987 DOI: 10.1007/s00894-020-4312-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/27/2020] [Indexed: 12/23/2022]
Abstract
Density functional theory (DFT) calculations are employed to examine the adsorption behaviors of cysteine on the gold surface using Au6 and Au8 species as model reactants. Computed results show that cysteine molecules prefer to bind with gold clusters via the S-atom of the thiol group in vacuum and thiolate group in water. The gas-phase adsorption energies are around 20.2 kcal/mol for Au6 and 24.4 kcal/mol for Au8. In water environment, such values are slightly reduced for Au6 (19.6 kcal/mol), but increased a little more for Au8 (25.6 kcal/mol). As a result, if a visible light with a frequency of ν ≈ 6 × 1014 Hz (500 nm) is applied, the time for the recovery of Au6 and Au8 from the most stable complexes will be about 0.38 and 9.3 × 103 s, respectively, at 298 K in water. The Au6 is in addition found to benefit from a larger change of energy gap that could be converted to an electrical signal for detection of cysteine.
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Affiliation(s)
- Pham Vu Nhat
- Department of Chemistry, Can Tho University, Can Tho, Vietnam
| | - Pham Tran Nguyen Nguyen
- Institute for Computational Science and Technology, Ho Chi Minh City, Vietnam
- Computational Chemistry Lab, Faculty of Chemistry, VNUHCM-University of Sciences, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Si
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam.
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam.
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42
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Contreras-Torres FF. Dispersion-Corrected Density Functional Theory Study of the Noncovalent Complexes Formed with Imidazo[1,2- a]pyrazines Adsorbed onto Silver Clusters. ACS OMEGA 2020; 5:561-569. [PMID: 31956803 PMCID: PMC6964303 DOI: 10.1021/acsomega.9b03127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
Imidazo[1,2-a]pyrazines are cyclic amidine-type compounds composed of α-amino acid residues. A full structural identification of these molecules constitutes an analytical challenge, especially when imidazo[1,2-a]pyrazines are obtained from physical processes (e.g., sublimation and pyrolysis of amino acids). A valuable source of molecular information can be obtained from absorption spectroscopies and related techniques encompassing the use of metallic substrates. The aim of this study is to provide new knowledge and insights into the noncovalent intermolecular interactions between imidazo[1,2-a]pyrazines and two Ag n (n = 4 and 20) clusters using density functional theory (DFT) methods. Semiempirical DFT dispersion (DFT-D) corrections were addressed using Grimme's dispersion (GD2) and Austin-Petersson-Frisch (APF) functionals in conjunction with the 6-31+G(d,p) + LANL2DZ mixed basis set. These DFT-D methods describe strong interactions; besides, in all cases, the APF dispersion (APF-D) energies of interaction appear to be consistently overestimated. In comparison with B3LYP calculations, the mean values for the difference in the energies of interaction calculated are 2.25 (GD2) and 6.24 (APF-D) kcal mol-1 for Ag4-molecules, and 2.30 (GD2) and 8.53 (APF-D) kcal mol-1 for Ag20-molecules. The effect of applying GD2 and APF-D corrections to the noncovalent complexes is nuanced in the intermolecular distances calculated, mainly in the Ag···N(amidine) bonding, which appears to play the most important role for the adsorptive process. Selective enhancement and considerable red shifts for Raman vibrations suggest strong interactions, whereas a charge redistribution involving the metallic substrate and the absorbate leads to a significant rearrangement of frontier molecular orbitals mainly in the Ag20-molecule complexes. Finally, time-dependent DFT calculations were carried out to access the orbital contributions to each of the transitions observed in the absorption spectrum. The corresponding UV-vis spectra involve transitions in the visible region at around 400 and 550 nm for the Ag4-molecule and the Ag20-molecule complexes, respectively.
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43
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Basik M, Mobin M, Shoeb M. Cysteine-silver-gold Nanocomposite as potential stable green corrosion inhibitor for mild steel under acidic condition. Sci Rep 2020; 10:279. [PMID: 31937900 PMCID: PMC6959314 DOI: 10.1038/s41598-019-57181-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 12/23/2019] [Indexed: 11/16/2022] Open
Abstract
Cysteine based silver-gold nanocomposite (Cys/Ag-Au NCz) was synthesized, this was followed by its characterization using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Ultraviolet-visible spectroscopy (UV-Vis), Scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDAX), Thermogravimetric analysis (TGA) and Transmission electron microscopy (TEM). Cys/Ag-Au NCz was studied as novel green corrosion inhibitor for mild steel in 1M HCl solution at varying concentration and temperature using gravimetric, Potentiodynamic polarization (PDP), Electrochemical impedance spectroscopy (EIS), SEM, EDAX and FTIR. Weight loss, PDP and EIS studies confirmed Cys/Ag-Au NCz as efficient corrosion inhibitor at moderately low concentration. The maximum inhibition efficiency of 96 % was observed at 303 K at 300 ppm. Cys/Ag-Au NCz acted by affecting both anodic and cathodic processes and its adsorption on steel surface followed the Langmuir adsorption isotherm. EIS data displayed the existence of protective film at mild steel/solution interface in Cys/Ag-Au NCz inhibited system. SEM micrograph in presence of Cys/Ag-Au NCz inhibited acid solution displayed better morphology as compared to blank solution. The UV-Vis and FTIR data indicates good interaction between the Cys/Ag-Au NCz and steel surface.
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Affiliation(s)
- Megha Basik
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India
| | - Mohammad Mobin
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India.
| | - Mohd Shoeb
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India
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44
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Akbari M, Morad R, Maaza M. First principle study of silver nanoparticle interactions with antimalarial drugs extracted from Artemisia annua plant. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2020; 22:331. [PMID: 33132747 PMCID: PMC7588957 DOI: 10.1007/s11051-020-05058-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/19/2020] [Indexed: 05/21/2023]
Abstract
Silver nanoparticles have a great potential in a broad range of applications such as drug-delivery carriers because of their antiviral and antibacterial properties. In this study, the coating properties of silver nanoparticle (size range of 1.6 nm) with three common anti-malarial drugs, Artemisinin, Artemether, and Artesunate have been studied by using the quantum mechanical and classical atomistic molecular dynamics simulation in order to use as the drug delivery to treat malaria and COVID-19 diseases. The optimized structure, frequencies, charge distribution, and the electrostatic potential maps of the three drug molecules were simulated by using the density functional theory (DFT) at the B3LYP/6-311++g(d,p) level of theory. Then, molecular dynamics simulation was used to study the coating of AgNP with each of these drugs. The affinity of interaction was obtained as Artesunate > Artemether > Artemisinin which is in agreement with the DFT results on the adsorption of drugs on the Ag(111) slab.
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Affiliation(s)
- Mahmood Akbari
- UNESCO-UNISA Africa Chair in Nanoscience & Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanoscience African Network (NANOAFNET), Material Research Division, iThemba LABS-National Research Foundation, Somerset West, 7129 South Africa
| | - Razieh Morad
- UNESCO-UNISA Africa Chair in Nanoscience & Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanoscience African Network (NANOAFNET), Material Research Division, iThemba LABS-National Research Foundation, Somerset West, 7129 South Africa
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanoscience & Nanotechnology (U2ACN2), College of Graduate Studies, University of South Africa (UNISA), Pretoria, South Africa
- Nanoscience African Network (NANOAFNET), Material Research Division, iThemba LABS-National Research Foundation, Somerset West, 7129 South Africa
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45
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Raubenheimer HG, Dobrzańska L. Interaction between Cu and Ag free ions and central metals in complexes with XHn units (X = B, Si, N, O, C, Al, Zn, Mg; n = 1, 2). Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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46
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Ionic Liquid-Modulated Synthesis of Porous Worm-Like Gold with Strong SERS Response and Superior Catalytic Activities. NANOMATERIALS 2019; 9:nano9121772. [PMID: 31842430 PMCID: PMC6955750 DOI: 10.3390/nano9121772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/20/2022]
Abstract
Porous gold with well-defined shape and size have aroused extensive research enthusiasm due to their prominent properties in various applications. However, it is still a great challenge to explore a simple, green, and low-cost route to fabricate porous gold with a “clean” surface. In this work, porous worm-like Au has been easily synthesized in a one-step procedure from aqueous solution at room temperature under the action of ionic liquid tetrapropylammonium glycine ([N3333][Gly]). It is shown that the as-prepared porous worm-like Au has the length from 0.3 to 0.6 μm and the width of approximately 100–150 nm, and it is composed of lots of small nanoparticles about 6–12 nm in diameter. With rhodamine 6G (R6G) as a probe molecule, porous worm-like Au displays remarkable surface enhanced Raman scattering (SERS) sensitivity (detection limit is lower than 10−13 M), and extremely high reproducibility (average relative standard deviations is less than 2%). At the same time, owing to significantly high specific surface area, various pore sizes and plenty of crystal defects, porous worm-like Au also exhibits excellent catalytic performance in the reduction of nitroaromatics, such as p-nitrophenol and p-nitroaniline, which can be completely converted within only 100 s and 150 s, respectively. It is expected that the as-prepared porous worm-like Au with porous and self-supported structures will also present the encouraging advances in electrocatalysis, sensing, and many others.
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Bahramnezhad B, Ghazanfari D, Sheikhhosseini E, Akhgar MR, Ahmadi SA. MnSb
2
O
6
‐chitosan nanocomposite: An efficient catalyst for the synthesis of coumarins via Pechmann reaction. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | - Sayed Ali Ahmadi
- Department of Chemistry, Kerman BranchIslamic Azad University Kerman Iran
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48
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Umar Ndagi, Lawal MM, Soliman ME. DFT Study of the Structural and Electronic Properties of Selected Organogold(III) Compounds with Characteristic Anticancer Activity. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419080302] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Tao D, Shui B, Gu Y, Cheng J, Zhang W, Jaffrezic-Renault N, Song S, Guo Z. Development of a Label-Free Electrochemical Aptasensor for the Detection of Tau381 and its Preliminary Application in AD and Non-AD Patients' Sera. BIOSENSORS 2019; 9:E84. [PMID: 31262001 PMCID: PMC6784373 DOI: 10.3390/bios9030084] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 06/24/2019] [Accepted: 06/27/2019] [Indexed: 12/25/2022]
Abstract
The electrochemical aptamer sensor has been designed for detecting tau381, a critical biomarker of Alzheimer's disease in human serum. The aptasensor is obtained by immobilizing the aptamer on a carboxyl graphene/thionin/gold nanoparticle modified glassy-carbon electrode. As a probe and bridge molecule, thionin connected carboxyl graphene and gold nanoparticles, and gave the electrical signal. Under optimal conditions, the increment of differential pulse voltammetry signal increased linearly with the logarithm of tau381 concentration in the range from 1.0 pM to 100 pM, and limit of detection was 0.70 pM. The aptasensor reliability was evaluated by determining its selectivity, reproducibility, stability, detection limit, and recovery. Performance analysis of the tau381 aptasensor in 10 patients' serum samples showed that the aptasensor could screen patients with and without Alzheimer's disease. The proposed aptasensor has potential for use in clinically diagnosing Alzheimer's disease in the early stage.
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Affiliation(s)
- Dan Tao
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
- Resources and Environmental Engineering College, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Bingqing Shui
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Yingying Gu
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jing Cheng
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Weiying Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Institute for Interdisciplinary Research, Jianghan University, Wuhan 430056, China
| | - Nicole Jaffrezic-Renault
- University of Lyon, Institute of Analytical Sciences, UMR-CNRS 5280, 5, La Doua Street, 69100 Villeurbanne, France.
| | - Shizhen Song
- Resources and Environmental Engineering College, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Zhenzhong Guo
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, Wuhan 430065, China.
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50
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Silver cluster–amino acid interactions: a quantum-chemical study. Amino Acids 2019; 51:855-864. [DOI: 10.1007/s00726-019-02728-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 03/18/2019] [Indexed: 12/26/2022]
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