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Fan WJ, Liu N, Zhu WQ, Mao YB, Tan DZ. Design of novel conjugated microporous polymers for efficient adsorptive desulfurization of small aromatic sulfur molecules. J Mol Graph Model 2020; 101:107734. [PMID: 32931981 DOI: 10.1016/j.jmgm.2020.107734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/23/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022]
Abstract
This paper presents a computational study of the adsorptive desulfurization of small aromatic sulfur compounds by conjugated microporous polymers (CMPs). The density-functional tight-binding method augmented with an R-6 dispersion correction is employed to investigate the physisorption binding mechanism and electronic properties of the CMP-aromatic sulfur complexes. We show that the widely extended π conjugation in the CMP skeletons is favorable for the non-covalent adsorption of aromatic thiophene and dibenzothiophene via π-π, H-π, and S-π interactions. The average binding energies are calculated to be -6.2 ∼ -15.2 kcal/mol for CMP- thiophene/dibenzothiophene systems. For the dibenzothiophene molecule with larger size and more extended conjugation, it binds more than twice stronger to CMP than the thiophene molecule. We show that the replacement of quinoline unit to the phenylene group in the network linker effectively enhances the average binding capacities by around 0.8-1.8 kcal/mol. Our calculations theoretically demonstrate that CMPs materials are kind of promising candidates for the adsorptive desulfurization of small aromatic sulfur compounds. This paper provides useful theoretical guidance for design of novel carbon-based adsorbents for adsorptive desulfurization.
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Affiliation(s)
- Wen-Jie Fan
- College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, 116023, People's Republic of China.
| | - Na Liu
- College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, 116023, People's Republic of China
| | - Wei-Qiang Zhu
- College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, 116023, People's Republic of China
| | - Yin-Bu Mao
- College of China & New Zealand Collaboration, Dalian Ocean University, Dalian, 116023, People's Republic of China
| | - Da-Zhi Tan
- Experimental Centre of Chemistry, Faculty of Chemical, Environmental and Biological, Dalian University of Technology, Dalian, 116024, People's Republic of China.
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Ajori S, Ameri A, Ansari R. Adsorption analysis and mechanical characteristics of carbon nanotubes under physisorption of biological molecules in an aqueous environment using molecular dynamics simulations. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1712380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- S. Ajori
- Faculty of Engineering, Department of Mechanical Engineering, University of Maragheh, Maragheh, Iran
| | - A. Ameri
- Faculty of Mechanical Engineering, University of Guilan, Rasht, Iran
| | - R. Ansari
- Faculty of Mechanical Engineering, University of Guilan, Rasht, Iran
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3
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Fan WJ, Liu Y, Tian Y, Tan DZ. Conjugated microporous polymer nanosheets and nanotubes as novel absorbents for microcystin-LR: insights from theoretical investigations. NEW J CHEM 2019. [DOI: 10.1039/c9nj04678j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Our calculations demonstrated that CMP nanosheet and nanotube materials can be developed as novel adsorbents for harmful microcystin-LR adsorption/removal.
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Affiliation(s)
- Wen-Jie Fan
- College of Marine Science and Environment Engineering
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Ying Liu
- Aquacultural Engineering R&D Center
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Ye Tian
- Aquacultural Engineering R&D Center
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Da-Zhi Tan
- Experimental Center of Chemistry
- Faculty of Chemical
- Environmental and Biological
- Dalian University of Technology
- Dalian 116024
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4
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On the vibrational behavior of single- and double-walled carbon nanotubes under the physical adsorption of biomolecules in the aqueous environment: a molecular dynamics study. J Mol Model 2016; 22:62. [PMID: 26898713 DOI: 10.1007/s00894-016-2927-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 02/04/2016] [Indexed: 10/22/2022]
Abstract
The adsorption of biomolecules on the walls of carbon nanotubes (CNTs) in an aqueous environment is of great importance in the field of nanobiotechnology. In this study, molecular dynamics (MD) simulations were performed to understand the mechanical vibrational behavior of single- and double-walled carbon nanotubes (SWCNTs and DWCNTs) under the physical adsorption of four important biomolecules (L-alanine, guanine, thymine, and uracil) in vacuum and an aqueous environment. It was observed that the natural frequencies of these CNTs in vacuum reduce under the physical adsorption of biomolecules. In the aqueous environment, the natural frequency of each pure CNT decreased as compared to its natural frequency in vacuum. It was also found that the frequency shift for functionalized CNTs as compared to pure CNTs in the aqueous environment was dependent on the radius and the number of walls of the CNT, and could be positive or negative.
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5
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Zhao YL, Zhang RQ, Minot C, Hermann K, Van Hove MA. Computational prediction of optimal metal ions to induce coordinated polymerization of muscle-like [c2]daisy chains. Phys Chem Chem Phys 2016; 18:7419-26. [DOI: 10.1039/c5cp07772a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Schematic representations of the polymerized [c2]daisy chain linked with Fe2+ in contracted vs. elongated forms by computational simulation.
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Affiliation(s)
- Yan-Ling Zhao
- Institute of Computational and Theoretical Studies & Department of Physics
- Hong Kong Baptist University
- Hong Kong
- China
| | - Rui-Qin Zhang
- Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong
- China
| | - Christian Minot
- Institute of Computational and Theoretical Studies & Department of Physics
- Hong Kong Baptist University
- Hong Kong
- China
- Laboratoire de Chimie Théorique
| | - Klaus Hermann
- Inorganic Chemistry Department
- Fritz-Haber-Institut der Max-Planck-Gesellschaft
- 14195 Berlin
- Germany
| | - Michel A. Van Hove
- Institute of Computational and Theoretical Studies & Department of Physics
- Hong Kong Baptist University
- Hong Kong
- China
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6
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Fan WJ, Yang GJ, Chi JW, Yu Y, Tan DZ. Theoretical study of the physisorption of organic molecules on conjugated microporous polymers: the critical role of skeleton structures on binding strength. RSC Adv 2016. [DOI: 10.1039/c6ra05955d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By enlarging the size (area) in the linker or adding substituent group in the node, the binding energy between CMPs and adsorbates will increase significantly, which demonstrates the critical role of skeleton structures on binding strength.
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Affiliation(s)
- Wen-Jie Fan
- College of Science
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Gui-Juan Yang
- College of Science
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Jian-Wei Chi
- College of Science
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - You Yu
- College of Science
- Dalian Ocean University
- Dalian 116023
- P. R. China
| | - Da-Zhi Tan
- Experimental Center of Chemistry
- Faculty of Chemical, Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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Alston JR, Banks DJ, McNeill CX, Mitchell JB, Popov LD, Shcherbakov IN, Poler JC. Adsorption studies of divalent, dinuclear coordination complexes as molecular spacers on SWCNTs. Phys Chem Chem Phys 2015; 17:29566-73. [PMID: 26457656 DOI: 10.1039/c5cp05419b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to enhance the electrical energy storage capabilities of nanostructured carbon materials, inter-particle spacer strategies are needed to maintain ion-accessible surface area between the nanoparticles. This paper presents a comparison between different classes of divalent, dinuclear coordination complexes which both show strong adsorption to SWCNTs and have molecular spacer properties that maintain electrochemical activity. We find that a novel, dinuclear zinc hydrazone complex binds as an ion-pair at very high loading while not inducing significant aggregation as compared to our previously studies of dinuclear ruthenium complexes. These conclusions are supported by conductivity and dispersion stability data. Moreover, since zinc is an earth abundant metal, these complexes can be used as components in sustainable energy storage materials. Binding kinetics and binding equilibrium data are presented. Modeling of the adsorption isotherm is best fit with the BET model. Kinetics data support an independent binding model. Preliminary capacitance and membrane resistance data are consistent with the complexes acting as molecular spacers between the SWCNTs in a condensed thin film.
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Affiliation(s)
- Jeffrey R Alston
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC, USA.
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9
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De Leo F, Magistrato A, Bonifazi D. Interfacing proteins with graphitic nanomaterials: from spontaneous attraction to tailored assemblies. Chem Soc Rev 2015; 44:6916-53. [DOI: 10.1039/c5cs00190k] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Thiscritical reviewpresents a detailed overview of the chemico-physical principles ruling the non-covalent association between proteins and fullerene, carbon nanotubes and graphene towards the creation of fascinating and innovative hybrid materials for biotechnological applications.
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Affiliation(s)
- Federica De Leo
- Department of Chemistry and Namur Research College (NARC)
- University of Namur (UNamur)
- B-5000 Namur
- Belgium
| | - Alessandra Magistrato
- CNR-IOM-Democritos c/o International School for Advanced Studies (SISSA)
- Trieste
- Italy
| | - Davide Bonifazi
- Department of Chemistry and Namur Research College (NARC)
- University of Namur (UNamur)
- B-5000 Namur
- Belgium
- Dipartimento di Scienze Chimiche e Farmaceutiche and INSTM UdR Trieste
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Wang C, Jiang Y, Zhang R, Lin Z. Intermolecular π/π and H/π interactions in dimers researched by different computational methods. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2014. [DOI: 10.1142/s0219633614500576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The analysis of π/π and H /π interactions in complexes are a challenging aspect of theoretical research. Due to the different approximations of different levels of theory, results tend to be inconsistent. We compared the reliabilities of HF, SVWN, M06L, PW91, BLYP, B3LYP, BHandHLYP, B97D, MP2, and DFTB-D approaches in researching π/π and H /π interactions by calculating the binding energies of five benzene-containing dimers. The effects of 6-31+G**, 6-311++G** and 6-311++G(2df,2p) basis sets on the results were analyzed too. We found that the DFTB-D and B97D methods combined with the 6-311++G** basis set perform well for dimers that contain π/π and H /π interactions. With high efficiency and satisfactory precision, DFTB-D is helpful for the calculation of complexes containing π/π and H /π stacking. We further calculated the structures and properties of phenylalanine-containing dimers using the DFTB-D and B97D methods. The properties of low energy conformers such as rotational constants, dipole moments and molecular orbitals were also analyzed. These data should be helpful for research into systems that contain π/π and H /π stacking.
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Affiliation(s)
- Cuihong Wang
- School of Science, TianJin ChengJian University, Tianjin 300384, P. R. China
| | - Yue Jiang
- School of Science, TianJin ChengJian University, Tianjin 300384, P. R. China
| | - Ruiqin Zhang
- Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, P. R. China
| | - Zijing Lin
- Department of Physics & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei 230026, P. R. China
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11
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Zhou R, Gao H. Cytotoxicity of graphene: recent advances and future perspective. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:452-74. [PMID: 24957946 DOI: 10.1002/wnan.1277] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 01/22/2023]
Abstract
Graphene, a unique two-dimensional single-atom-thin nanomaterial with exceptional structural, mechanical, and electronic properties, has spurred an enormous interest in many fields, including biomedical applications, which at the same time ignites a growing concern on its biosafety and potential cytotoxicity to human and animal cells. In this review, we present a summary of some very recent studies on this important subject with both experimental and theoretical approaches. The molecular interactions of graphene with proteins, DNAs, and cell membranes (both bacteria and mammalian cells) are discussed in detail. Severe distortions in structures and functions of these biomacromolecules by graphene are identified and characterized. For example, the graphene is shown to disrupt bacteria cell membranes by insertion/cutting as well as destructive extraction of lipid molecules directly. More interestingly, this cytotoxicity has been shown to have implications in de novo design of nanomedicine, such as graphene-based band-aid, a potential 'green' antibiotics due to its strong physical-based (instead of chemical-based) antibacterial capability. These studies have provided a better understanding of graphene nanotoxicity at both cellular and molecular levels, and also suggested therapeutic potential by using graphene's cytotoxicity against bacteria cells.
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Affiliation(s)
- Ruhong Zhou
- Computational Biology Center, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA; Department of Chemistry, Columbia University, New York, NY, USA
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12
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Functionalization of single-walled carbon nanotubes with uracil, guanine, thymine and l-alanine. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.04.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Gao K, Chen G, Wu D. A DFT study on the interaction between glycine molecules/radicals and the (8, 0) SiCNT. Phys Chem Chem Phys 2014; 16:17988-97. [DOI: 10.1039/c4cp01951b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The geometrical structures, energetics and electronic properties of glycine molecules as well as dehydrogenated radical interaction with silicon carbide nanotubes (SiCNTs) are investigated based on density functional theory (DFT) for the first time.
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Affiliation(s)
- Kefu Gao
- Department of Chemistry
- Shantou University
- Guangdong, P. R. China
| | - Guanghui Chen
- Department of Chemistry
- Shantou University
- Guangdong, P. R. China
| | - Di Wu
- State Key Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun, P. R. China
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14
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Guo J, Li J, Zhang Y, Jin X, Liu H, Yao X. Exploring the influence of carbon nanoparticles on the formation of β-sheet-rich oligomers of IAPP₂₂₋₂₈ peptide by molecular dynamics simulation. PLoS One 2013; 8:e65579. [PMID: 23755253 PMCID: PMC3674003 DOI: 10.1371/journal.pone.0065579] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 04/26/2013] [Indexed: 12/01/2022] Open
Abstract
Recent advances in nanotechnologies have led to wide use of nanomaterials in biomedical field. However, nanoparticles are found to interfere with protein misfolding and aggregation associated with many human diseases. It is still a controversial issue whether nanoparticles inhibit or promote protein aggregation. In this study, we used molecular dynamics simulations to explore the effects of three kinds of carbon nanomaterials including graphene, carbon nanotube and C60 on the aggregation behavior of islet amyloid polypeptide fragment 22–28 (IAPP22–28). The diverse behaviors of IAPP22–28 peptides on the surfaces of carbon nanomaterials were studied. The results suggest these nanomaterials can prevent β-sheet formation in differing degrees and further affect the aggregation of IAPP22–28. The π–π stacking and hydrophobic interactions are different in the interactions between peptides and different nanoparticles. The subtle differences in the interaction are due to the difference in surface curvature and area. The results demonstrate the adsorption interaction has competitive advantages over the interactions between peptides. Therefore, the fibrillation of IAPP22–28 may be inhibited at its early stage by graphene or SWCNT. Our study can not only enhance the understanding about potential effects of nanomaterials to amyloid formation, but also provide valuable information to develop potential β-sheet formation inhibitors against type II diabetes.
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Affiliation(s)
- Jingjing Guo
- School of Pharmacy, Lanzhou University, Lanzhou, China
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, China
| | - Jiazhong Li
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yan Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Xiaojie Jin
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, China
| | - Huanxiang Liu
- School of Pharmacy, Lanzhou University, Lanzhou, China
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, China
- * E-mail: (HL); (XY)
| | - Xiaojun Yao
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou, China
- * E-mail: (HL); (XY)
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Zuo G, Kang SG, Xiu P, Zhao Y, Zhou R. Interactions between proteins and carbon-based nanoparticles: exploring the origin of nanotoxicity at the molecular level. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:1546-1556. [PMID: 23038664 DOI: 10.1002/smll.201201381] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Indexed: 06/01/2023]
Abstract
The widespread application of nanomaterials has spurred an interest in the study of interactions between nanoparticles and proteins due to the biosafety concerns of these nanomaterials. In this review, a summary is presented of some of the recent studies on this important subject, especially on the interactions of proteins with carbon nanotubes (CNTs) and metallofullerenols. Two potential molecular mechanisms have been proposed for CNTs' inhibition of protein functions. The driving forces of CNTs' adsorption onto proteins are found to be mainly hydrophobic interactions and the so-called π-π stacking between CNTs' carbon rings and proteins' aromatic residues. However, there is also recent evidence showing that endohedral metallofullerenol Gd@C82 (OH)22 can be used to inhibit tumor growth, thus acting as a potential nanomedicine. These recent findings have provided a better understanding of nanotoxicity at the molecular level and also suggested therapeutic potential by using nanoparticles' cytotoxicity against cancer cells.
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Affiliation(s)
- Guanghong Zuo
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800, China
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16
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WANG CUIHONG, ZHANG RUIQIN, LIN ZIJING. A COMPARATIVE STUDY ON INTERMOLECULAR HYDROGEN BOND INTERACTIONS IN MOLECULAR DIMERS USING DIFFERENT LEVELS OF COMPUTATIONAL METHODS. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2012. [DOI: 10.1142/s0219633612500836] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Hydrogen bond interactions in biological systems are important scientific issues but are challenging for their theoretical determinations at quantum-mechanical level of theory. Due to the different approximations, the available theoretical approaches often predict diverse hydrogen bond lengths and strengths. In this work, we evaluated the reliabilities of a number of widely used theoretical approaches including HF, SVWN, BLYP, PW91, B3LYP, BH and HLYP, B97D, M06L, MP2, and DFTB-D in studying hydrogen bonding, by calculating the hydrogen bond lengths and binding energies of 23 dimers formed by HCOOH , NH3 and Glycine. We also compared the effects of STO-3G, 6-31+G**, 6-311++G** and 6-311++G(2df,2p) basis sets on the results. Our result shows that, M06L, B3LYP and BHandHLYP methods can predict accurate dimer structures with a moderate basis set. Moreover, DFTB-D also gives reasonably reliable results with high efficiency and satisfactory precision, being a good choice for studying complex structures which contain hydrogen bonds.
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Affiliation(s)
- CUIHONG WANG
- Department of Physics, University of Science and Technology of China, Hefei 230026, China
- Department of Physics and Materials Sciences, City University of Hong Kong, Hong Kong S.A.R., China
- USTC-CityU Joint Advanced Research Centre, Suzhou 215123, China
| | - RUIQIN ZHANG
- Department of Physics and Materials Sciences, City University of Hong Kong, Hong Kong S.A.R., China
| | - ZIJING LIN
- Department of Physics, University of Science and Technology of China, Hefei 230026, China
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Wang C, Li S, Zhang R, Lin Z. Adsorption and properties of aromatic amino acids on single-walled carbon nanotubes. NANOSCALE 2012; 4:1146-1153. [PMID: 22095051 DOI: 10.1039/c1nr11073j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We investigated the adsorption of three aromatic amino acids-phenylalanine, tyrosine, and tryptophan-on the sidewalls of a number of representative single-walled carbon nanotubes (SWNTs) using density-functional tight-binding calculations, complemented by an empirical dispersion correction. The armchair (n, n) SWNTs (n = 3-12) and zigzag (n, 0) SWNTs (n = 4-12) were thoroughly examined. We found that the most stable amino acid/SWNT complexes for different SWNTs have similar local structures, and that the distance between the amino acid and SWNT is about 3 Å. Owing to the π-π and H-π stacking interactions, the benzene and indole rings are not exactly parallel to the SWNTs but instead lie at a small angle. We also investigated the diameter and chirality dependences of binding energies and found that SWNT (5, 0) has an especially large binding energy that can be used for SWNT identification or selection.
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Affiliation(s)
- Cuihong Wang
- Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
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18
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Yang Z, Wang Z, Tian X, Xiu P, Zhou R. Amino acid analogues bind to carbon nanotube via π-π interactions: Comparison of molecular mechanical and quantum mechanical calculations. J Chem Phys 2012; 136:025103. [DOI: 10.1063/1.3675486] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Yu T, Gong Y, Lu T, Wei L, Li Y, Mu Y, Chen Y, Liao K. Recognition of carbon nanotube chirality by phage display. RSC Adv 2012. [DOI: 10.1039/c1ra00581b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Noncovalent and covalent functionalization of a (5, 0) single-walled carbon nanotube with alanine and alanine radicals. J Mol Model 2011; 18:771-81. [DOI: 10.1007/s00894-011-1115-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 04/28/2011] [Indexed: 10/18/2022]
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22
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Wallace EJ, D'Rozario RSG, Sanchez BM, Sansom MSP. A multiscale simulation study of carbon nanotube interactions with designed amphiphilic peptide helices. NANOSCALE 2010; 2:967-975. [PMID: 20648294 DOI: 10.1039/b9nr00355j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The dispersion and manipulation of carbon nanotubes (CNTs) are of great importance if we are to utilise the unique properties of CNTs in a range of biological, electrical and mechanical applications. Recently, a designed amphiphilic peptide helix termed nano-1 has been shown to solubilise CNTs in aqueous solution. Furthermore, the peptide is capable of assembling these coated tubes into fibres. We use a multiscale molecular dynamics approach to study the adsorption profile of nano-1 on a CNT surface. We find that nano-1 interacts with a CNT in a preferred orientation, such that its hydrophobic surface is in contact with the tube. The adsorption profile is unchanged upon increasing the number of peptides on the CNT. Interestingly, when few peptides are adsorbed onto the CNT surface we find that the secondary structure of the peptide is unstable. However, the helical secondary structure is stabilised upon increasing the number of peptides on the CNT surface. This study sheds light on the adsorption of peptides on CNTs, and may be exploitable to enhance the selective solubilisation and manipulation of CNTs.
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Affiliation(s)
- E Jayne Wallace
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
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23
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Ogunro OO, Wang XQ. Charge transfer in the non-covalent functionalization of carbon nanotubes. NEW J CHEM 2010. [DOI: 10.1039/b9nj00518h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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