1
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Wiriyarattanakul A, Xie W, Toopradab B, Wiriyarattanakul S, Shi L, Rungrotmongkol T, Maitarad P. Comparative Study of Machine Learning-Based QSAR Modeling of Anti-inflammatory Compounds from Durian Extraction. ACS Omega 2024; 9:7817-7826. [PMID: 38405441 PMCID: PMC10882656 DOI: 10.1021/acsomega.3c07386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/15/2023] [Accepted: 12/27/2023] [Indexed: 02/27/2024]
Abstract
Quantitative structure-activity relationship (QSAR) analysis, an in silico methodology, offers enhanced efficiency and cost effectiveness in investigating anti-inflammatory activity. In this study, a comprehensive comparative analysis employing four machine learning algorithms (random forest (RF), gradient boosting regression (GBR), support vector regression (SVR), and artificial neural networks (ANNs)) was conducted to elucidate the activities of naturally derived compounds from durian extraction. The analysis was grounded in the exploration of structural attributes encompassing steric and electrostatic properties. Notably, the nonlinear SVR model, utilizing five key features, exhibited superior performance compared to the other models. It demonstrated exceptional predictive accuracy for both the training and external test datasets, yielding R2 values of 0.907 and 0.812, respectively; in addition, their RMSE resulted in 0.123 and 0.097, respectively. The study outcomes underscore the significance of specific structural factors (denoted as shadow ratio, dipole z, methyl, ellipsoidal volume, and methoxy) in determining anti-inflammatory efficacy. Thus, the findings highlight the potential of molecular simulations and machine learning as alternative avenues for the rational design of novel anti-inflammatory agents.
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Affiliation(s)
- Amphawan Wiriyarattanakul
- Program
in Chemistry, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
| | - Wanting Xie
- Research
Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Borwornlak Toopradab
- Center
of Excellence in Structural and Computational Biology, Department
of Biochemistry, Chulalongkorn University, Bangkok 10330, Thailand
- Program
in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sopon Wiriyarattanakul
- Program
in Computer Science, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
| | - Liyi Shi
- Research
Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- Emerging
Industries Institute Shanghai University, Jiaxing, Zhejiang 314006, P. R. China
| | - Thanyada Rungrotmongkol
- Center
of Excellence in Structural and Computational Biology, Department
of Biochemistry, Chulalongkorn University, Bangkok 10330, Thailand
- Program
in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Phornphimon Maitarad
- Research
Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
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2
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Kongkaew N, Hengphasatporn K, Injongkol Y, Mee-Udorn P, Shi L, Mahalapbutr P, Maitarad P, Harada R, Shigeta Y, Rungrotmongkol T, Vangnai AS. Design of electron-donating group substituted 2-PAM analogs as antidotes for organophosphate insecticide poisoning. RSC Adv 2023; 13:32266-32275. [PMID: 37928857 PMCID: PMC10620644 DOI: 10.1039/d3ra03087c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/27/2023] [Indexed: 11/07/2023] Open
Abstract
The use of organophosphate (OPs) pesticides is widespread in agriculture and horticulture, but these chemicals can be lethal to humans, causing fatalities and deaths each year. The inhibition of acetylcholinesterase (AChE) by OPs leads to the overstimulation of cholinergic receptors, ultimately resulting in respiratory arrest, seizures, and death. Although 2-pralidoxime (2-PAM) is the FDA-approved drug for treating OP poisoning, there is difficulty in blood-brain barrier permeation. To address this issue, we designed and evaluated a series of 2-PAM analogs by substituting electron-donating groups on the para and/or ortho positions of the pyridinium core using in silico techniques. Our PCM-ONIOM2 (MP2/6-31G*:PM7//B3LYP/6-31G*:UFF) binding energy results demonstrated that 13 compounds exhibited higher binding energy than 2-PAM. The analog with phenyl and methyl groups substituted on the para and ortho positions, respectively, showed the most favorable binding characteristics, with aromatic residues in the active site (Y124, W286, F297, W338, and Y341) and the catalytic residue S203 covalently bonding with paraoxon. The results of DS-MD simulation revealed a highly favorable apical conformation of the potent analog, which has the potential to enhance reactivation of AChE. Importantly, newly designed compound demonstrated appropriate drug-likeness properties and blood-brain barrier penetration. These results provide a rational guide for developing new antidotes to treat organophosphate insecticide toxicity.
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Affiliation(s)
- Nalinee Kongkaew
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University Bangkok 10330 Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
| | - Yuwanda Injongkol
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University Bangkok 10330 Thailand
| | - Pitchayathida Mee-Udorn
- National Center for Genetic Engineering and Biotechnology 113 Thailand Science Park Pathumthani 12120 Thailand
| | - Liyi Shi
- Research Center of Nano Science and Technology, Department of Chemistry, College of Science, Shanghai University Shanghai 200444 China
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University Shanghai 200444 China
| | - Panupong Mahalapbutr
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University Khon Kaen 40002 Thailand
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Department of Chemistry, College of Science, Shanghai University Shanghai 200444 China
- Department of Chemistry, College of Sciences, State Key Laboratory of Advanced Special Steel, Research Center of Nano Science and Technology, School of Materials Science and Engineering, Shanghai University Shanghai 200444 China
| | - Ryuhei Harada
- Center for Computational Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
| | - Thanyada Rungrotmongkol
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University Bangkok 10330 Thailand
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University Bangkok 10330 Thailand
| | - Alisa S Vangnai
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University Bangkok 10330 Thailand
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3
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Pojtanadithee P, Hengphasatporn K, Suroengrit A, Boonyasuppayakorn S, Wilasluck P, Deetanya P, Wangkanont K, Sukanadi IP, Chavasiri W, Wolschann P, Langer T, Shigeta Y, Maitarad P, Sanachai K, Rungrotmongkol T. Identification of Promising Sulfonamide Chalcones as Inhibitors of SARS-CoV-2 3CL pro through Structure-Based Virtual Screening and Experimental Approaches. J Chem Inf Model 2023; 63:5244-5258. [PMID: 37581276 DOI: 10.1021/acs.jcim.3c00663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
3CLpro is a viable target for developing antiviral therapies against the coronavirus. With the urgent need to find new possible inhibitors, a structure-based virtual screening approach was developed. This study recognized 75 pharmacologically bioactive compounds from our in-house library of 1052 natural product-based compounds that satisfied drug-likeness criteria and exhibited good bioavailability and membrane permeability. Among these compounds, three promising sulfonamide chalcones were identified by combined theoretical and experimental approaches, with SWC423 being the most suitable representative compound due to its competitive inhibition and low cytotoxicity in Vero E6 cells (EC50 = 0.89 ± 0.32 μM; CC50 = 25.54 ± 1.38 μM; SI = 28.70). The binding and stability of SWC423 in the 3CLpro active site were investigated through all-atom molecular dynamics simulation and fragment molecular orbital calculation, indicating its potential as a 3CLpro inhibitor for further SARS-CoV-2 therapeutic research. These findings suggested that inhibiting 3CLpro with a sulfonamide chalcone such as SWC423 may pave the effective way for developing COVID-19 treatments.
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Affiliation(s)
- Piyatida Pojtanadithee
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Aphinya Suroengrit
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Siwaporn Boonyasuppayakorn
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Patcharin Wilasluck
- Center of Excellence for Molecular Biology and Genomics of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Peerapon Deetanya
- Center of Excellence for Molecular Biology and Genomics of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kittikhun Wangkanont
- Center of Excellence for Molecular Biology and Genomics of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - I Putu Sukanadi
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Warinthorn Chavasiri
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Peter Wolschann
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, University of Vienna, Vienna 1090, Austria
- Institute of Theoretical Chemistry, University of Vienna, Vienna 1090, Austria
| | - Thierry Langer
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, University of Vienna, Vienna 1090, Austria
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R. China
| | - Kamonpan Sanachai
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Thanyada Rungrotmongkol
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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4
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Phan THT, Hengphasatporn K, Shigeta Y, Xie W, Maitarad P, Rungrotmongkol T, Chavasiri W. Designing Potent α-Glucosidase Inhibitors: A Synthesis and QSAR Modeling Approach for Biscoumarin Derivatives. ACS Omega 2023; 8:26340-26350. [PMID: 37521599 PMCID: PMC10373460 DOI: 10.1021/acsomega.3c02868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/22/2023] [Indexed: 08/01/2023]
Abstract
Nineteen biscoumarins were synthesized, well-characterized, and evaluated against α-glucosidases in vitro. Of these, six compounds (10, 12, 16, and 17-19) were newly synthesized and not previously reported in the chemical literature. The majority of the synthesized derivatives demonstrated significant inhibitory activity. A quantitative structure-activity relationship (QSAR) model was developed, revealing a strong correlation between the anti-α-glucosidase activity and selected molecular descriptors. Based on this model, two new compounds (18 and 19) were designed, which exhibited the strongest inhibition with IC50 values of 0.62 and 1.21 μM, respectively, when compared to the positive control (acarbose) with an IC50 value of 93.63 μM. Enzyme kinetic studies of compounds 18 and 19 revealed their competitive inhibition with Ki values of 3.93 and 1.80 μM, respectively. Computational studies demonstrated that compound 18 could be inserted into the original binding site (OBS) of α-glucosidase MAL12 and form multiple hydrophobic interactions with nearby amino acids, with the bromo group playing an essential role in enhancing the binding strength and stability at the OBS of the enzyme based on the quantum mechanical calculations using the fragment molecular orbital method. These findings provide valuable insights into the design of potent α-glucosidase inhibitors, which may have potential therapeutic applications in the treatment of diabetes and related diseases.
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Affiliation(s)
- Thi-Hong-Truc Phan
- Center
of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Kowit Hengphasatporn
- Center
for Computational Sciences, University of
Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Yasuteru Shigeta
- Center
for Computational Sciences, University of
Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Wanting Xie
- Research
Center of Nano Science and Technology, Shanghai
University, No. 99, Shangda Road, P.O. Box 111, Baoshan district, Shanghai 200444, People’s Republic of China
| | - Phornphimon Maitarad
- Research
Center of Nano Science and Technology, Shanghai
University, No. 99, Shangda Road, P.O. Box 111, Baoshan district, Shanghai 200444, People’s Republic of China
| | - Thanyada Rungrotmongkol
- Program
in Bioinformatics and Computational Biology, Graduated School, Chulalongkorn University, Bangkok 10330, Thailand
- Center
of Excellence in Structural and Computational Biology, Department
of Biochemistry, Faculty of Science, Chulalongkorn
University, Bangkok 10330, Thailand
| | - Warinthorn Chavasiri
- Center
of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
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5
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Plaisathit D, Setthakarn K, Sirirak J, Swanglap P, Kamkaew A, Maitarad P, Burgess K, Wanichacheva N. Novel near-infrared Aza-BODIPY-based fluorescent and colorimetric sensor for highly selective detection of Au3+ in aqueous media, human skin and brain cells. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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6
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Chen F, Wiriyarattanakul A, Xie W, Shi L, Rungrotmongkol T, Jia R, Maitarad P. Quantitative Structure–Electrochemistry Relationship (QSER) Studies on Metal–Amino–Porphyrins for the Rational Design of CO2 Reduction Catalysts. Molecules 2023; 28:molecules28073105. [PMID: 37049867 PMCID: PMC10096077 DOI: 10.3390/molecules28073105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/26/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
The quantitative structure–electrochemistry relationship (QSER) method was applied to a series of transition-metal-coordinated porphyrins to relate their structural properties to their electrochemical CO2 reduction activity. Since the reactions mainly occur within the core of the metalloporphyrin catalysts, the cluster model was used to calculate their structural and electronic properties using density functional theory with the M06L exchange–correlation functional. Three dependent variables were employed in this work: the Gibbs free energies of H*, C*OOH, and O*CHO. QSER, with the genetic algorithm combined with multiple linear regression (GA–MLR), was used to manipulate the mathematical models of all three Gibbs free energies. The obtained statistical values resulted in a good predictive ability (R2 value) greater than 0.945. Based on our QSER models, both the electronic properties (charges of the metal and porphyrin) and the structural properties (bond lengths between the metal center and the nitrogen atoms of the porphyrin) play a significant role in the three Gibbs free energies. This finding was further applied to estimate the CO2 reduction activities of the metal–monoamino–porphyrins, which will prove beneficial in further experimental developments.
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Affiliation(s)
- Furong Chen
- Research Center of Nano Science and Technology, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Amphawan Wiriyarattanakul
- Program in Chemistry, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
| | - Wanting Xie
- Research Center of Nano Science and Technology, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Liyi Shi
- Research Center of Nano Science and Technology, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
- Emerging Industries Institute Shanghai University, Jiaxing 314006, China
| | - Thanyada Rungrotmongkol
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (T.R.); (P.M.)
| | - Rongrong Jia
- Department of Physics, Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
- Correspondence: (T.R.); (P.M.)
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7
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Xie W, Wiriyarattanakul S, Rungrotmongkol T, Shi L, Wiriyarattanakul A, Maitarad P. Rational Design of a Low-Data Regime of Pyrrole Antioxidants for Radical Scavenging Activities Using Quantum Chemical Descriptors and QSAR with the GA-MLR and ANN Concepts. Molecules 2023; 28:molecules28041596. [PMID: 36838583 PMCID: PMC9959680 DOI: 10.3390/molecules28041596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
A series of pyrrole derivatives and their antioxidant scavenging activities toward the superoxide anion (O2•-), hydroxyl radical (•OH), and 1,1-diphenyl-2-picryl-hydrazyl (DPPH•) served as the training data sets of a quantitative structure-activity relationship (QSAR) study. The steric and electronic descriptors obtained from quantum chemical calculations were related to the three O2•-, •OH, and DPPH• scavenging activities using the genetic algorithm combined with multiple linear regression (GA-MLR) and artificial neural networks (ANNs). The GA-MLR models resulted in good statistical values; the coefficient of determination (R2) of the training set was greater than 0.8, and the root mean square error (RMSE) of the test set was in the range of 0.3 to 0.6. The main molecular descriptors that play an important role in the three types of antioxidant activities are the bond length, HOMO energy, polarizability, and AlogP. In the QSAR-ANN models, a good R2 value above 0.9 was obtained, and the RMSE of the test set falls in a similar range to that of the GA-MLR models. Therefore, both the QSAR GA-MLR and QSAR-ANN models were used to predict the newly designed pyrrole derivatives, which were developed based on their starting reagents in the synthetic process.
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Affiliation(s)
- Wanting Xie
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Sopon Wiriyarattanakul
- Program in Computer Science, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
| | - Thanyada Rungrotmongkol
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Chulalongkorn University, Bangkok 10330, Thailand
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Liyi Shi
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
- Emerging Industries Institute, Shanghai University, Jiaxing 314006, China
| | - Amphawan Wiriyarattanakul
- Program in Chemistry, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit 53000, Thailand
- Correspondence: (A.W.); (P.M.)
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
- Correspondence: (A.W.); (P.M.)
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8
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Hanpaibool C, Maitarad P, Rungrotmongkol T. Prediction of substrate binding on mobile colistin resistance using in silico approach. ScienceAsia 2023. [DOI: 10.2306/scienceasia1513-1874.2022.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Sangkhawasi M, Remsungnen T, Vangnai AS, Maitarad P, Rungrotmongkol T. Prediction of the Glass Transition Temperature in Polyethylene Terephthalate/Polyethylene Vanillate (PET/PEV) Blends: A Molecular Dynamics Study. Polymers (Basel) 2022; 14:polym14142858. [PMID: 35890634 PMCID: PMC9317600 DOI: 10.3390/polym14142858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022] Open
Abstract
Polyethylene terephthalate (PET) is one of the most common polymers used in industries. However, its accumulation in the environment is a health risk to humans and animals. Polyethylene vanillate (PEV) is a bio-based material with topological, mechanical, and thermal properties similar to PET, allowing it to be used as a PET replacement or blending material. This study aimed to investigate some structural and dynamical properties as well as the estimated glass transition temperature (Tg) of PET/PEV blended polymers by molecular dynamics (MD) simulations with an all-atom force field model. Four blended systems of PET/PEV with different composition ratios (4/1, 3/2, 2/3, and 1/4) were investigated and compared to the parent polymers, PET and PEV. The results show that the polymers with all blended ratios have Tg values around 344–347 K, which are not significantly different from each other and are close to the Tg of PET at 345 K. Among all the ratios, the 3/2 blended polymer showed the highest number of contacting atoms and possible hydrogen bonds between the two chain types. Moreover, the radial distribution results suggested the proper interactions in this system, which indicates that this is the most suitable ratio model for further experimental studies of the PET/PEV polymer blend.
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Affiliation(s)
- Mattanun Sangkhawasi
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Tawun Remsungnen
- Faculty of Interdisciplinary Studies, Khon Kaen University, Nong Khai Campus, Nong Khai 43000, Thailand
- Correspondence: (T.R.); (T.R.); Tel.: +66-81499-2030 (T.R.); +66-2218-5426 (T.R.)
| | - Alisa S. Vangnai
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University, NO 99, Shangda Road, P.O. Box 111, Baoshan district, Shanghai 200444, China;
| | - Thanyada Rungrotmongkol
- Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (T.R.); (T.R.); Tel.: +66-81499-2030 (T.R.); +66-2218-5426 (T.R.)
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10
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Kaewnok N, Kraithong S, Mahaveero T, Maitarad P, Sirirak J, Wanichacheva N, Swanglap P. Silver nanoparticle incorporated colorimetric/fluorescence sensor for sub-ppb detection of mercury ion via plasmon-enhanced fluorescence strategy. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Zhu Y, Weng W, Zhou T, Lin Z, Ding N, Maitarad P, Wang C, Guo J. Iodine-doped covalent organic frameworks with coaxially stacked cruciform anthracenes for high Hall mobility. Chem Commun (Camb) 2022; 58:6606-6609. [PMID: 35583227 DOI: 10.1039/d2cc01721k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cruciform anthracene building blocks are designed to construct an electroactive two-dimensional covalent organic framework (COF). Upon doping with iodine, cationic radicals are produced on the COF to exhibit structure-enhanced charge transfer properties with a low activation energy (0.13 eV) and a high Hall mobility (10.5 cm2 V-1 s-1).
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Affiliation(s)
- Yunyang Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Weijun Weng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Ting Zhou
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Zheng Lin
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Ning Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R. China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China.
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12
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Patawanich P, Petdum A, Sirirak J, Chatree K, Charoenpanich A, Panchan W, Setthakarn K, Kamkaew A, Sooksimuang T, Maitarad P, Wanichacheva N. Highly selective zinc(II) triggered “Turn-ON” [5]helicene-based fluorescence sensor: its application in liver and brain cells imaging. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Ding N, Zhou T, Weng W, Lin Z, Liu S, Maitarad P, Wang C, Guo J. Multivariate Synthetic Strategy for Improving Crystallinity of Zwitterionic Squaraine-Linked Covalent Organic Frameworks with Enhanced Photothermal Performance. Small 2022; 18:e2201275. [PMID: 35585681 DOI: 10.1002/smll.202201275] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Two-dimensional covalent organic frameworks (2D COFs) offer a designable platform to explore porous polyelectrolyte frameworks with periodic ionic skeletons and uniform pore channels. However, the crystallinity of ionized 2D COF is often far from satisfactory as the electrostatic assembly of structures impedes the ordered layered arrangement. Here, a multivariate synthetic strategy to synthesize a highly crystalline squaraine (SQ)-linked zwitterionic 2D COF is proved. A neutral aldehyde monomer copolymerizes with squaric acid (SA) and amines in a controlled manner, resulting in the ionized COF with linkage heterogeneity in one tetragonal framework. Thus, the zwitterions of SQ are spatially isolated to minimize the electrostatic interaction and maintain the highly ordered layered stacking. With the addition of 85%-90% SA (relative to a total of aldehydes and SA), a fully SQ-linked zwitterionic 2D COF is achieved by the in-situ conversion of imine to SQ linkages. Such a highly crystalline SQ-linked COF promotes absorptivity in a full spectrum and photothermal conversion performances, and in turn, it exhibits enhanced solar-to-vapor generation with an efficiency of as high as 92.19%. These results suggest that synthetically regulating charge distribution is desirable to constitute a family of new crystalline polyelectrolyte frameworks.
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Affiliation(s)
- Ning Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Ting Zhou
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Weijun Weng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Zheng Lin
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Shujing Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Department of Chemistry, College of Science, Shanghai University, Shanghai, 200444, China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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14
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Sripattaraphan A, Sanachai K, Chavasiri W, Boonyasuppayakorn S, Maitarad P, Rungrotmongkol T. Computational Screening of Newly Designed Compounds against Coxsackievirus A16 and Enterovirus A71. Molecules 2022; 27:molecules27061908. [PMID: 35335272 PMCID: PMC8955072 DOI: 10.3390/molecules27061908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/27/2022] [Accepted: 03/10/2022] [Indexed: 12/20/2022]
Abstract
Outbreaks of hand, foot, and mouth disease (HFMD) that occur worldwide are mainly caused by the Coxsackievirus-A16 (CV-A16) and Enterovirus-A71 (EV-A71). Unfortunately, neither an anti-HFMD drug nor a vaccine is currently available. Rupintrivir in phase II clinical trial candidate for rhinovirus showed highly potent antiviral activities against enteroviruses as an inhibitor for 3C protease (3Cpro). In the present study, we focused on designing 50 novel rupintrivir analogs against CV-A16 and EV-A71 3Cpro using computational tools. From their predicted binding affinities, the five compounds with functional group modifications at P1′, P2, P3, and P4 sites, namely P1′-1, P2-m3, P3-4, P4-5, and P4-19, could bind with both CV-A16 and EV-A71 3Cpro better than rupintrivir. Subsequently, these five analogs were studied by 500 ns molecular dynamics simulations. Among them, P2-m3, the derivative with meta-aminomethyl-benzyl group at the P2 site, showed the greatest potential to interact with the 3Cpro target by delivering the highest number of intermolecular hydrogen bonds and contact atoms. It formed the hydrogen bonds with L127 and K130 residues at the P2 site stronger than rupintrivir, supported by significantly lower MM/PB(GB)SA binding free energies. Elucidation of designed rupintrivir analogs in our study provides the basis for developing compounds that can be candidate compounds for further HFMD treatment.
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Affiliation(s)
- Amita Sripattaraphan
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (A.S.); (K.S.)
| | - Kamonpan Sanachai
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (A.S.); (K.S.)
| | - Warinthorn Chavasiri
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Siwaporn Boonyasuppayakorn
- Applied Medical Virology Research Unit, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University, Shanghai 200444, China;
| | - Thanyada Rungrotmongkol
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (A.S.); (K.S.)
- Ph.D. Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: or
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15
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Chawanpunyawat T, Chasing P, Nalaoh P, Maitarad P, Sudyodsuk T, Promarak V. Rational Design of Chrysene-Based Hybridized Local and Charge-Transfer Molecules as Efficient Non-Doped Deep-Blue Emitters for Simple-Structured Electroluminescent Devices. Chem Asian J 2021; 16:4145-4154. [PMID: 34716663 DOI: 10.1002/asia.202101154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/29/2021] [Indexed: 01/12/2023]
Abstract
Herein, we present a molecular design of chrysene-based deep-blue emissive materials (TC, TpPC, TpXC, and TmPC), in which chrysene as a core is functionalized with different triphenylamine moieties to realize a fine-tuning deep-blue fluorescence with superior electroluminescent (EL) performance. The photophysical analyses and density functional theory (DFT) calculations disclose that TC, TpPC, and TpXC possess HLCT characteristics with intense deep-blue emission in the solid-state, good hole-transporting ability, and high thermal and electrochemical stabilities. They are successfully employed as non-doped emitters in simple structured OLEDs (ITO/PEDOT : PSS : NF/emitter/TPBi/LiF : Al). In particular, TC-based device emits a deep-blue light with an emission peak at 446 nm and CIE color coordinates of (0.148, 0.096), a maximum external quantum efficiency (EQEmax ) of 4.31%, and a low turn-on voltage of 2.8 V.
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Affiliation(s)
- Thanyarat Chawanpunyawat
- Department of Materials Science and Engineering School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand
| | - Pongsakorn Chasing
- Department of Materials Science and Engineering School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand
| | - Phattananawee Nalaoh
- Department of Materials Science and Engineering School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University, Shanghai, 200444, P. R. China
| | - Taweesak Sudyodsuk
- Department of Materials Science and Engineering School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand
| | - Vinich Promarak
- Department of Materials Science and Engineering School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand.,Research Network of NANOTEC-VISTEC on Nanotechnology for Energy School of Molecular Science and Engineering Department, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong, 21210, Thailand
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16
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Sun Q, Jin K, Huang Y, Guo J, Rungrotmongkol T, Maitarad P, Wang C. Influence of conformational change of chain unit on the intrinsic negative thermal expansion of polymers. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Sanachai K, Aiebchun T, Mahalapbutr P, Seetaha S, Tabtimmai L, Maitarad P, Xenikakis I, Geronikaki A, Choowongkomon K, Rungrotmongkol T. Discovery of novel JAK2 and EGFR inhibitors from a series of thiazole-based chalcone derivatives. RSC Med Chem 2021; 12:430-438. [PMID: 34046625 PMCID: PMC8130606 DOI: 10.1039/d0md00436g] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 01/25/2021] [Indexed: 01/12/2023] Open
Abstract
The Janus kinase (JAK) and epidermal growth factor receptor (EGFR) have been considered as potential targets for cancer therapy due to their role in regulating proliferation and survival of cancer cells. In the present study, the aromatic alkyl-amino analogs of thiazole-based chalcone were selected to experimentally and theoretically investigate their inhibitory activity against JAK2 and EGFR proteins as well as their anti-cancer effects on human cancer cell lines expressing JAK2 (TF1 and HEL) and EGFR (A549 and A431). In vitro cytotoxicity screening results demonstrated that the HEL erythroleukemia cell line was susceptible to compounds 11 and 12, whereas the A431 lung cancer cell line was vulnerable to compound 25. However, TF1 and A549 cells were not sensitive to our thiazole derivatives. From kinase inhibition assay results, compound 25 was found to be a dual inhibitor against JAK2 and EGFR, whereas compounds 11 and 12 selectively inhibited the JAK2 protein. According to the molecular docking analysis, compounds 11, 12 and 25 formed hydrogen bonds with the hinge region residues Lys857, Leu932 and Glu930 and hydrophobically came into contact with Leu983 at the catalytic site of JAK2, while compound 25 formed a hydrogen bond with Met769 at the hinge region, Lys721 near a glycine loop, and Asp831 at the activation loop of EGFR. Altogether, these potent thiazole derivatives, following Lipinski's rule of five, could likely be developed as a promising JAK2/EGFR targeted drug(s) for cancer therapy.
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Affiliation(s)
- Kamonpan Sanachai
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University Bangkok 10330 Thailand +662 2185418 +662 2185426
| | - Thitinan Aiebchun
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University Bangkok 10330 Thailand +662 2185418 +662 2185426
| | - Panupong Mahalapbutr
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University Khon Kaen 40002 Thailand
| | - Supaphorn Seetaha
- Department of Biochemistry, Faculty of Science, Kasetsart University Bangkok 10900 Thailand
| | - Lueacha Tabtimmai
- Department of Biotechnology, Faculty of Applied Science, King Mongkut's University of Technology of North Bangkok Bangkok Thailand
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University Shanghai 200444 PR China
| | - Iakovos Xenikakis
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University of Thessaloniki Thessaloniki 54124 Greece
| | - Athina Geronikaki
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University of Thessaloniki Thessaloniki 54124 Greece
| | | | - Thanyada Rungrotmongkol
- Structural and Computational Biology Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University Bangkok 10330 Thailand +662 2185418 +662 2185426
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University Bangkok 10330 Thailand
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18
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Zhou G, Maitarad P, Wang P, Han L, Yan T, Li H, Zhang J, Shi L, Zhang D. Alkali-Resistant NO x Reduction over SCR Catalysts via Boosting NH 3 Adsorption Rates by In Situ Constructing the Sacrificed Sites. Environ Sci Technol 2020; 54:13314-13321. [PMID: 32960572 DOI: 10.1021/acs.est.0c04536] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Currently, improving the alkali resistance of vanadium-based catalysts still remains as an intractable issue for the selective catalytic reduction of NOx with NH3 (NH3-SCR). It is generally believed that the decrease in adsorbed NHx species deriving from the declined acidic sites is the chief culprit for the deactivation of alkali-poisoned catalysts. Herein, alkali-resistant NOx reduction over SCR catalysts via boosting NH3 adsorption rates was originally demonstrated by in situ constructing the sacrificed sites. It is interesting that the adsorbed NHx species largely decrease while the NH3 adsorption rate is well kept over the V2O5/CeO2 catalyst by in situ constructing the sacrificed sites. The SCR activity could be maintained after alkali poisoning because in situ constructed SO42- groups would prefer to be combined with K+ so that the specific V═O species can endow K-poisoned V2O5/CeO2 with high adsorption rate of NH3 and high reactivity of NHx species. This work provides a new viewpoint that NH3 adsorption rate plays more decisive roles in the performance of alkali-poisoned catalysts than the amount of NH3 adsorption and enlightens an alternative strategy to improve the alkali-resistance of catalysts, which is significant to both the academic and industrial fields.
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Affiliation(s)
- Guangyu Zhou
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Phornphimon Maitarad
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Penglu Wang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Lupeng Han
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Tingting Yan
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Hongrui Li
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jianping Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Liyi Shi
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Dengsong Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, China
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19
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Xu L, Chen WQ, Ke SQ, Zhu M, Qiu WH, Liu N, Namuangruk S, Maitarad P, Impeng S, Tang L. Efficient photocatalytic reactions of Cr(vi) reduction and ciprofloxacin and RhB oxidation with Sn(ii)-doped BiOBr. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01405e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient photocatalytic reactions of Cr(VI) reduction, ciprofloxacin and RhB oxidation with Sn(II) doped BiOBr.
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Affiliation(s)
- Ling Xu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Wen-qian Chen
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
- Shanghai Institute of Applied Radiation
| | - Shu-qiang Ke
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Min Zhu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Wen-hui Qiu
- Shanghai Institute of Applied Radiation
- Shanghai University
- Shanghai 201800
- PR China
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control
| | - Ning Liu
- School of Environment and Architecture
- University of Shanghai for Science and Technology
- Shanghai 200093
- PR China
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
- Research Center of Nano Science and Technology
- Shanghai University
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Sarawoot Impeng
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
| | - Liang Tang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE)
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20
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Daengngern R, Maitarad P, Shi L, Zhang D, Kungwan N, Promarak V, Meeprasert J, Namuangruk S. Oxotitanium-porphyrin for selective catalytic reduction of NO by NH3: a theoretical mechanism study. NEW J CHEM 2018. [DOI: 10.1039/c8nj03616k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitric oxide reduction catalyzed by oxotitanium-porphyrin.
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Affiliation(s)
- Rathawat Daengngern
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
- Department of Chemistry
- Faculty of Science
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
- Vidyasirimedhi Institute of Science and Technology
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Nawee Kungwan
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Vinich Promarak
- Vidyasirimedhi Institute of Science and Technology
- Rayong 21210
- Thailand
| | - Jittima Meeprasert
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
- Research Center of Nano Science and Technology
- Shanghai University
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21
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Junkaew A, Namuangruk S, Maitarad P, Ehara M. Silicon-coordinated nitrogen-doped graphene as a promising metal-free catalyst for N2O reduction by CO: a theoretical study. RSC Adv 2018; 8:22322-22330. [PMID: 35539752 PMCID: PMC9081867 DOI: 10.1039/c8ra03265c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
Metal-free catalysts for the transformation of N2O and CO into green products under mild conditions have long been expected. The present work proposes using silicon-coordinated nitrogen-doped graphene (SiN4G) as a catalyst for N2O reduction and CO oxidation based on periodic DFT calculations. The reaction proceeds via two steps, which are N2O reduction at the Si reaction center, producing Si–O*, which subsequently oxidizes CO to CO2. The N2O reduction occurs with an activation energy barrier of 0.34 eV, while the CO oxidation step requires an energy of 0.66 eV. The overall reaction is highly exothermic, with a reaction energy of −3.41 eV, mostly due to the N2 generation step. Compared to other metal-free catalysts, SiN4G shows the higher selectivity because it not only strongly prefers to adsorb N2O over CO, but the produced N2 and CO2 are easily desorbed, which prevents the poisoning of the active catalytic sites. These results demonstrate that SiN4G is a promising metal-free catalyst for N2O reduction and CO oxidation under mild conditions, as the reaction is both thermodynamically and kinetically favorable. Mechanistic insight into the N2O reduction and CO oxidation on SiN4G is reported in this theoretical study. The high reactive and selective SiN4 center leads this metal-free catalyst as a promising catalyst for this reaction under mild conditions.![]()
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Affiliation(s)
- Anchalee Junkaew
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
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22
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Maitarad P, Han J, Namuangruk S, Shi L, Chitpakdee C, Meeprasert J, Junkaew A, Kungwan N, Zhang D. Theoretical guidance and experimental confirmation on catalytic tendency of M-CeO2 (M = Zr, Mn, Ru or Cu) for NH3-SCR of NO. Molecular Simulation 2017. [DOI: 10.1080/08927022.2017.1332411] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University, Shanghai, China
| | - Jin Han
- Research Center of Nano Science and Technology, Shanghai University, Shanghai, China
| | | | - Liyi Shi
- Research Center of Nano Science and Technology, Shanghai University, Shanghai, China
| | | | | | - Anchalee Junkaew
- National Nanotechnology Center (NANOTEC), NSTDA, Pathum Thani, Thailand
| | - Nawee Kungwan
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai, Thailand
| | - Dengsong Zhang
- Research Center of Nano Science and Technology, Shanghai University, Shanghai, China
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23
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Junkaew A, Maitarad P, Arróyave R, Kungwan N, Zhang D, Shi L, Namuangruk S. The complete reaction mechanism of H2S desulfurization on an anatase TiO2 (001) surface: a density functional theory investigation. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02030e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anatase TiO2 (001) surface is active and selective toward water production and results in the modification of the surface by forming S-doped TiO2, which enhances its photocatalytic activity.
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Affiliation(s)
- Anchalee Junkaew
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathum Thani 12120
- Thailand
| | - Phornphimon Maitarad
- Research Center of Nanoscience and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Raymundo Arróyave
- Department of Materials Science & Engineering
- Texas A&M University
- USA
| | - Nawee Kungwan
- Department of Chemistry
- Faculty of Science
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Dengsong Zhang
- Research Center of Nanoscience and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Liyi Shi
- Research Center of Nanoscience and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathum Thani 12120
- Thailand
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24
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Liu J, Kang L, Li H, Maitarad P, Zhang J, Shi L, Zhang D. Mn–Fe bi-metal oxides in situ created on metal wire mesh as monolith catalysts for selective catalytic reduction of NO with NH3. RSC Adv 2017. [DOI: 10.1039/c7ra05007k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mn–Fe bi-metal oxides in situ created on a metal wire mesh are demonstrated as high-performance deNOx monolith catalysts.
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Affiliation(s)
- Jie Liu
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Lin Kang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Hongrui Li
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Jianping Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
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25
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Maitarad P, Meeprasert J, Shi L, Limtrakul J, Zhang D, Namuangruk S. Mechanistic insight into the selective catalytic reduction of NO by NH3 over low-valent titanium-porphyrin: a DFT study. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02116b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The theoretical study shows that Ti-porphyrin has potential as an alternative catalyst for NH3-SCR of NO.
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Affiliation(s)
- Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | | | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Jumras Limtrakul
- Vidyasirimedhi Institute of Science and Technology
- Wang Chan
- Thailand
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
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Han J, Zhang D, Maitarad P, Shi L, Cai S, Li H, Huang L, Zhang J. Fe2O3 nanoparticles anchored in situ on carbon nanotubes via an ethanol-thermal strategy for the selective catalytic reduction of NO with NH3. Catal Sci Technol 2015. [DOI: 10.1039/c4cy00789a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe2O3 nanoparticles anchored in situ on carbon nanotubes via an ethanol-thermal strategy present an excellent DeNOx performance.
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Affiliation(s)
- Jin Han
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Sixiang Cai
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Hongrui Li
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Lei Huang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Jianping Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
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Maitarad P, Namuangruk S, Zhang D, Shi L, Li H, Huang L, Boekfa B, Ehara M. Metal-porphyrin: a potential catalyst for direct decomposition of N(2)O by theoretical reaction mechanism investigation. Environ Sci Technol 2014; 48:7101-7110. [PMID: 24856812 DOI: 10.1021/es405767d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The adsorption of nitrous oxide (N2O) on metal-porphyrins (metal: Ti, Cr, Fe, Co, Ni, Cu, or Zn) has been theoretically investigated using density functional theory with the M06L functional to explore their use as potential catalysts for the direct decomposition of N2O. Among these metal-porphyrins, Ti-porphyrin is the most active for N2O adsorption in the triplet ground state with the strongest adsorption energy (-13.32 kcal/mol). Ti-porphyrin was then assessed for the direct decomposition of N2O. For the overall reaction mechanism of three N2O molecules on Ti-porphyrin, two plausible catalytic cycles are proposed. Cycle 1 involves the consecutive decomposition of the first two N2O molecules, while cycle 2 is the decomposition of the third N2O molecule. For cycle 1, the activation energies of the first and second N2O decompositions are computed to be 3.77 and 49.99 kcal/mol, respectively. The activation energy for the third N2O decomposition in cycle 2 is 47.79 kcal/mol, which is slightly lower than that of the second activation energy of the first cycle. O2 molecules are released in cycles 1 and 2 as the products of the reaction, which requires endothermic energies of 102.96 and 3.63 kcal/mol, respectively. Therefore, the O2 desorption is mainly released in catalytic cycle 2 of a TiO3-porphyrin intermediate catalyst. In conclusion, regarding the O2 desorption step for the direct decomposition of N2O, the findings would be very useful to guide the search for potential N2O decomposition catalysts in new directions.
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Affiliation(s)
- Phornphimon Maitarad
- Research Center of Nano Science and Technology, Shanghai University , Shanghai 200444, P. R. China
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Fang C, Zhang D, Cai S, Zhang L, Huang L, Li H, Maitarad P, Shi L, Gao R, Zhang J. Low-temperature selective catalytic reduction of NO with NH₃ over nanoflaky MnOx on carbon nanotubes in situ prepared via a chemical bath deposition route. Nanoscale 2013; 5:9199-9207. [PMID: 23928911 DOI: 10.1039/c3nr02631k] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Nanoflaky MnO(x) on carbon nanotubes (nf-MnO(x)@CNTs) was in situ synthesized by a facile chemical bath deposition route for low-temperature selective catalytic reduction (SCR) of NO with NH₃. This catalyst was mainly characterized by the techniques of X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), N₂ adsorption-desorption analysis, X-ray photoelectron spectroscopy (XPS), H₂ temperature-programmed reduction (H₂-TPR) and NH₃ temperature-programmed desorption (NH₃-TPD). The SEM, TEM, XRD results and N₂ adsorption-desorption analysis indicated that the CNTs were surrounded by nanoflaky MnO(x) and the obtained catalyst exhibited a large surface area as well. Compared with the MnO(x)/CNT and MnO(x)/TiO₂ catalysts prepared by an impregnation method, the nf-MnO(x)@CNTs presented better NH₃-SCR activity at low temperature and a more extensive operating temperature window. The XPS results showed that a higher atomic concentration of Mn(4+) and more chemisorbed oxygen species existed on the surface of CNTs for nf-MnO(x)@CNTs. The H₂-TPR and NH₃-TPD results demonstrated that the nf-MnO(x)@CNTs possessed stronger reducing ability, more acid sites and stronger acid strength than the other two catalysts. Based on the above mentioned favourable properties, the nf-MnO(x)@CNT catalyst has an excellent performance in the low-temperature SCR of NO to N₂ with NH₃. In addition, the nf-MnO(x)@CNT catalyst also presented favourable stability and H₂O resistance.
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Affiliation(s)
- Cheng Fang
- School of Material Science and Engineering, Shanghai University, Shanghai 200072, China.
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Bousquet D, Fukuda R, Maitarad P, Jacquemin D, Ciofini I, Adamo C, Ehara M. Excited-State Geometries of Heteroaromatic Compounds: A Comparative TD-DFT and SAC-CI Study. J Chem Theory Comput 2013; 9:2368-79. [DOI: 10.1021/ct400097b] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Diane Bousquet
- LECIME, Laboratoire
d’Electrochimie, Chimie des Interfaces et Modélisation
pour l’Energie, UMR 7575 CNRS, Ecole Nationale Supérieure de Chimie de Paris − Chimie ParisTech, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
| | - Ryoichi Fukuda
- Institute for Molecular Science and Research Center for Computational Science, 38 Nishigo-naka, Myodaiji, Okazaki, 444-8585, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University Katsura, Kyoto 615-8510, Japan
| | - Phornphimon Maitarad
- Institute for Molecular Science and Research Center for Computational Science, 38 Nishigo-naka, Myodaiji, Okazaki, 444-8585, Japan
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230, BP 92208, Université de Nantes, 2, Rue de la Houssinière,
44322 Nantes, France
- Institut Universitaire de France, 103 Boulevard Saint
Michel, F-75005 Paris, France
| | - Ilaria Ciofini
- LECIME, Laboratoire
d’Electrochimie, Chimie des Interfaces et Modélisation
pour l’Energie, UMR 7575 CNRS, Ecole Nationale Supérieure de Chimie de Paris − Chimie ParisTech, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
| | - Carlo Adamo
- LECIME, Laboratoire
d’Electrochimie, Chimie des Interfaces et Modélisation
pour l’Energie, UMR 7575 CNRS, Ecole Nationale Supérieure de Chimie de Paris − Chimie ParisTech, 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
- Institut Universitaire de France, 103 Boulevard Saint
Michel, F-75005 Paris, France
| | - Masahiro Ehara
- Institute for Molecular Science and Research Center for Computational Science, 38 Nishigo-naka, Myodaiji, Okazaki, 444-8585, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University Katsura, Kyoto 615-8510, Japan
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Gao R, Zhang D, Liu X, Shi L, Maitarad P, Li H, Zhang J, Cao W. Enhanced catalytic performance of V2O5–WO3/Fe2O3/TiO2microspheres for selective catalytic reduction of NO by NH3. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20332d] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li H, Zhang D, Maitarad P, Shi L, Gao R, Zhang J, Cao W. In situ synthesis of 3D flower-like NiMnFe mixed oxides as monolith catalysts for selective catalytic reduction of NO with NH3. Chem Commun (Camb) 2012; 48:10645-7. [DOI: 10.1039/c2cc34758j] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ding X, Guo J, Feng X, Honsho Y, Guo J, Seki S, Maitarad P, Saeki A, Nagase S, Jiang D. Synthesis of metallophthalocyanine covalent organic frameworks that exhibit high carrier mobility and photoconductivity. Angew Chem Int Ed Engl 2010; 50:1289-93. [PMID: 21290495 DOI: 10.1002/anie.201005919] [Citation(s) in RCA: 404] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Indexed: 11/11/2022]
Affiliation(s)
- Xuesong Ding
- Department of Materials Molecular Science, Institute for Molecular Science, Higashiyama, Myodaiji, Okazaki, Japan
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Ding X, Guo J, Feng X, Honsho Y, Guo J, Seki S, Maitarad P, Saeki A, Nagase S, Jiang D. Synthesis of Metallophthalocyanine Covalent Organic Frameworks That Exhibit High Carrier Mobility and Photoconductivity. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005919] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Maitarad P, Kamchonwongpaisan S, Vanichtanankul J, Vilaivan T, Yuthavong Y, Hannongbua S. Interactions between cycloguanil derivatives and wild type and resistance-associated mutant Plasmodium falciparum dihydrofolate reductases. J Comput Aided Mol Des 2009; 23:241-52. [PMID: 19156529 DOI: 10.1007/s10822-008-9254-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Accepted: 11/20/2008] [Indexed: 11/29/2022]
Abstract
Comparative molecular field analysis (CoMFA) and quantum chemical calculations were performed on cycloguanil (Cyc) derivatives of the wild type and the quadruple mutant (Asn51Ile, Cys59Arg, Ser108Asn, Ile164Leu) of Plasmodium falciparum dihydrofolate reductase (PfDHFR). The represented CoMFA models of wild type (r(2) = 0.727 and r(2) = 0.985) and mutant type (r(2) = 0.786 and r(2) = 0.979) can describe the differences of the Cyc structural requirements for the two types of PfDHFR enzymes and can be useful to guide the design of new inhibitors. Moreover, the obtained particular interaction energies between the Cyc and the surrounding residues in the binding pocket indicated that Asn108 of mutant enzyme was the cause of Cyc resistance by producing steric clash with p-Cl of Cyc. Consequently, comparing the energy contributions with the potent flexible WR99210 inhibitor, it was found that the key mutant residue, Asn108, demonstrates attractive interaction with this inhibitor and some residues, Leu46, Ile112, Pro113, Phe116, and Leu119, seem to perform as second binding site with WR99210. Therefore, quantum chemical calculations can be useful for investigating residue interactions to clarify the cause of drug resistance.
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Affiliation(s)
- Phornphimon Maitarad
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
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35
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Maitarad P, Saparpakorn P, Hannongbua S, Kamchonwongpaisan S, Tarnchompoo B, Yuthavong Y. Particular interaction between pyrimethamine derivatives and quadruple mutant type dihydrofolate reductase of Plasmodium falciparum: CoMFA and quantum chemical calculations studies. J Enzyme Inhib Med Chem 2008; 24:471-9. [DOI: 10.1080/14756360802201223] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Phornphimon Maitarad
- 1Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- 2Center of Nanotechnology KU, Kasetsart University and NANOTEC Center of Excellence at Kasetsart University, Pathumthani, 12120, Thailand
| | - Patchreenart Saparpakorn
- 1Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- 2Center of Nanotechnology KU, Kasetsart University and NANOTEC Center of Excellence at Kasetsart University, Pathumthani, 12120, Thailand
| | - Supa Hannongbua
- 1Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- 2Center of Nanotechnology KU, Kasetsart University and NANOTEC Center of Excellence at Kasetsart University, Pathumthani, 12120, Thailand
| | - Sumalee Kamchonwongpaisan
- 3National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, 12120, Thailand
| | - Bongkoch Tarnchompoo
- 3National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, 12120, Thailand
| | - Yongyuth Yuthavong
- 3National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, 12120, Thailand
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