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Kim S, Lee J, Chang R. Plasma-induced Water Pore Formation in Model Cell Membranes: Molecular Dynamics Simulation. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seonghan Kim
- Department of Chemistry; Kwangwoon University; Seoul 01897 Republic of Korea
| | - Junyeol Lee
- Department of Chemistry; Kwangwoon University; Seoul 01897 Republic of Korea
| | - Rakwoo Chang
- Department of Chemistry; Kwangwoon University; Seoul 01897 Republic of Korea
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2
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Jäger J, Schraff S, Pammer F. Synthesis, Properties, and Solar Cell Performance of Poly(4-(p
-alkoxystyryl)thiazole)s. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jakob Jäger
- Institute of Organic Chemistry II and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sandra Schraff
- Institute of Organic Chemistry II and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials; University of Ulm; Albert-Einstein-Allee 11 89081 Ulm Germany
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Yu M, Huang X, Wang S, Chen B, Zhang Y, Chen B, Liu M, Zhang W, Xiong J. Enhancing performance of inverted planar perovskite solar cells by argon plasma post-treatment on PEDOT:PSS. RSC Adv 2017. [DOI: 10.1039/c7ra01718a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The performance of perovskite solar cells could be improved significantly by the method of argon plasma post-treatment on PEDOT:PSS.
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Affiliation(s)
- Miao Yu
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Xiaona Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Shuying Wang
- Chengdu No. 7 High School (GaoxinCampus)
- Chengdu 610041
- China
| | - Ben Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Yang Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Bo Chen
- Institute of Microelectronics of Chinese Academy of Sciences
- Beijing 100029
- China
| | - Mingzhen Liu
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Wanli Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
| | - Jie Xiong
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu 610054
- China
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4
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Lee YN, Attri P, Kim SS, Lee SJ, Kim JH, Cho TJ, Kim IT. Photovoltaic properties of novel thiophene- and selenophene-based conjugated low bandgap polymers: a comparative study. NEW J CHEM 2017. [DOI: 10.1039/c7nj00151g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We investigated the photovoltaic properties of two newly synthesized low bandgap conjugated polymers, thiophene-based P1 and selenophene-based P2.
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Affiliation(s)
- Young Nam Lee
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
| | - Pankaj Attri
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics
- GraphiKwangwoon University
- Seoul
- Korea
| | - Seong Su Kim
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
| | - Sang Jun Lee
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
| | - Jun Heon Kim
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
| | - Tae Jong Cho
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
| | - In Tae Kim
- Department of Chemistry
- Kwangwoon University
- Seoul
- Korea
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5
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Guo TQ, Zhang YD, Luo WJ, Li X, Zhou YM, Zhao JH. Genotoxicity and effect on early stage proliferation of osteoprogenitor cells on amino-group functionalized titanium implant surface: an in vitro test. Mol Cell Toxicol 2016. [DOI: 10.1007/s13273-016-0021-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Attri P, Sarinont T, Kim M, Amano T, Koga K, Cho AE, Choi EH, Shiratani M. Influence of ionic liquid and ionic salt on protein against the reactive species generated using dielectric barrier discharge plasma. Sci Rep 2015; 5:17781. [PMID: 26656857 PMCID: PMC4674715 DOI: 10.1038/srep17781] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/04/2015] [Indexed: 01/14/2023] Open
Abstract
The presence of salts in biological solution can affect the activity of the reactive species (RS) generated by plasma, and so they can also have an influence on the plasma-induced sterilization. In this work, we assess the influence that diethylammonium dihydrogen phosphate (DEAP), an ionic liquid (IL), and sodium chloride (NaCl), an ionic salt (IS), have on the structural changes in hemoglobin (Hb) in the presence of RS generated using dielectric barrier discharge (DBD) plasma in the presence of various gases [O2, N2, Ar, He, NO (10%) + N2 and Air]. We carry out fluorescence spectroscopy to verify the generation of •OH with or without the presence of DEAP IL and IS, and we use electron spin resonance (ESR) to check the generation of H• and •OH. In addition, we verified the structural changes in the Hb structure after treatment with DBD in presence and absence of IL and IS. We then assessed the structural stability of the Hb in the presence of IL and IS by using molecular dynamic (MD) simulations. Our results indicate that the IL has a strong effect on the conservation of the Hb structure relative to that of IS against RS generated by plasma.
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Affiliation(s)
- Pankaj Attri
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Korea.,Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Thapanut Sarinont
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Minsup Kim
- Department of Bioinformatics, Korea University, Sejong 02841, Korea
| | - Takaaki Amano
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Kazunori Koga
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
| | - Art E Cho
- Department of Bioinformatics, Korea University, Sejong 02841, Korea
| | - Eun Ha Choi
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Korea
| | - Masaharu Shiratani
- Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan
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7
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Park JH, Kumar N, Park DH, Yusupov M, Neyts EC, Verlackt CCW, Bogaerts A, Kang MH, Uhm HS, Choi EH, Attri P. A comparative study for the inactivation of multidrug resistance bacteria using dielectric barrier discharge and nano-second pulsed plasma. Sci Rep 2015; 5:13849. [PMID: 26351132 PMCID: PMC4563361 DOI: 10.1038/srep13849] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 08/04/2015] [Indexed: 12/23/2022] Open
Abstract
Bacteria can be inactivated through various physical and chemical means, and these have always been the focus of extensive research. To further improve the methodology for these ends, two types of plasma systems were investigated: nano-second pulsed plasma (NPP) as liquid discharge plasma and an Argon gas-feeding dielectric barrier discharge (Ar-DBD) as a form of surface plasma. To understand the sterilizing action of these two different plasma sources, we performed experiments with Staphylococcus aureus (S. aureus) bacteria (wild type) and multidrug resistant bacteria (Penicillum-resistant, Methicillin-resistant and Gentamicin-resistant). We observed that both plasma sources can inactivate both the wild type and multidrug-resistant bacteria to a good extent. Moreover, we observed a change in the surface morphology, gene expression and β-lactamase activity. Furthermore, we used X-ray photoelectron spectroscopy to investigate the variation in functional groups (C-H/C-C, C-OH and C=O) of the peptidoglycan (PG) resulting from exposure to plasma species. To obtain atomic scale insight in the plasma-cell interactions and support our experimental observations, we have performed molecular dynamics simulations to study the effects of plasma species, such as OH, H2O2, O, O3, as well as O2 and H2O, on the dissociation/formation of above mentioned functional groups in PG.
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Affiliation(s)
- Ji Hoon Park
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Naresh Kumar
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Dae Hoon Park
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Maksudbek Yusupov
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Erik C Neyts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Christof C W Verlackt
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Min Ho Kang
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Han Sup Uhm
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Eun Ha Choi
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
| | - Pankaj Attri
- Plasma Bioscience Research Center/Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Korea 139-701
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Interaction Studies between Newly Synthesized Photosensitive Polymer and Ionic Liquids. INT J POLYM SCI 2015. [DOI: 10.1155/2015/461974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this information age, different kinds of photosensitive materials have been used in the manufacture of information storage devices. But these photosensitive materials have the bane of low diffraction efficiency. In order to solve this problem, we have synthesized a novel photosensitive polymer from epoxy-based azopolymers (with three types of azochromophores). Furthermore, we have studied the interaction between this newly synthesized azopolymer and ionic liquids (ILs). For this purpose, we have used the ammonium and imidazolium families of ILs, such as diethylammonium dihydrogen phosphate (DEAP), tributylammonium methyl sulfate (TBMS), triethylammonium 4-aminotoluene-3-sulfonic acid (TASA), and 1-methylimidazolium chloride ([Mim]Cl). To investigate the molecular interaction between azopolymer and ILs, we have used the following spectroscopic methods of analysis: UV-visible spectroscopy, photoluminescence (PL) spectroscopy, Fourier transformed infrared spectroscopy (FT-IR), and confocal Raman spectroscopy. In this study, we have developed new photosensitive materials by combining polymer with ILs.
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