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- 저자 : Dongsheng Tang (검색결과 4 건)
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Tang, Dongsheng,Wan, Jiahui,Xu, Xiaopeng,Lee, Young Woong,Woo, Han Young,Feng, Kui,Peng, Qiang Elsevier 2018 Nano energy Vol.53 No.-
<P><B>Abstract</B></P> <P>In this work, two wide bandgap polymers of PDTT-TZNT and PDTF-TZNT were developed by Stille-coupling of naphtho[1,2-c:5,6-c]bis(2-octyl-[1,2,3]triazole) (TZNT) acceptor unit with bithiophene (DTH) and fluorinated bithiophene (DTF), respectively. These polymers exhibited a wide bandgap over 1.84 eV. The fluorinated PDTF-TZNT had lower highest occupied molecular orbital HOMO level (− 5.24 eV), higher molar absorption coefficient (1.28 × 10<SUP>5</SUP> M<SUP>−1</SUP> cm<SUP>−1</SUP>), and higher molecular packing order. Using a low bandgap 3,9-bis(2-methylene-(5&6-methyl-(3-(1,1-dicyanomethylene)-indanone)))−5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene (IT-M) as the electron acceptor, the PDTF-TZNT:IT-M devices generated a higher power conversion efficiency (PCE) of 10.05%. To make up the weak absorption of above binary blend of PDTF-TZNT:IT-M in the short wavelength region and increase the device performance further, a large bandgap small molecular acceptor of 5,5,10,10,15,15-hexabutyl-2,7,12-tri(4-(3-ethylhexyl-4-oxothiazolidine-2-yl)dimalononitrile-benzothiadiazole)-truxene (meta-TrBRCN) was added as the second acceptor material to fabricate ternary blend PSCs. The meta-TrBRCN could not only expand the absorption range but also fine-tune the blend morphology by stepwise changing its content. When 0.2 of meta-TrBRCN was added, the PCE of PDTF-TZNT:IT-M devices was improved to 11.48%.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Two novel naphthobistriazole-based wide bandgap donor polymers were successfully synthesized and characterized. </LI> <LI> The introduced fluorine atoms enabled the PDTF-TZNT:IT-M devices to obtain a higher PCE of 10.05%. </LI> <LI> The ternary blend strategy boosted the PCE up to 11.48% in the PDTF-TZNT<SUB>x</SUB>:IT-M<SUB>y</SUB>:meta-TrBRCN<SUB>z</SUB> devices. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Two novel naphthobistriazole-based wide bandgap polymers, PDTH-TZNT and PDTF-TZNT, has been developed for non-fullerene polymer solar cells. The fluorinated PDTF-TZNT exhibited a higher PCE of 10.05% in binary PDTT-FTAZ:IT-M devices. By adding 0.2 of meta-TrBRCN as the second acceptor, the related ternary blend devices exhibited a significantly improved PCE of 11.48%.</P> <P>[DISPLAY OMISSION]</P>
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Muhammad Hamayun,Sang-Mo Kang,Nadeem Ahmad,Chae-In Na,Dongsheng Tang,Yong-Hyun Hwang,In-Jung Lee 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10
Agricultural productivity is subjected to enormous environmental constraints, particularly to salinity and drought due to their higher magnitude of adverse impacts and worldwide distribution. Silicon (Si) was found to play a favorable role in salinity and drought stress alleviation of soybean cultivar Daewonkong. All growth attributes insignificantly improved with Si nutrition. The endogenous bioactive GA1 and GA4 content increased with the application of elevated Si level both under normal and stressful condition. JA contents sharply increased with NaCl and PEG application but decreses with Si added to salt and drought stress treatments. SA level increased with NaCl and PEG and was further enhanced with Si in the salt treated plants, but reduced with the combined application of Si and PEG. The endogenous bioactive GA1 and GA4, JA and ABA content of soybean leaves were analyzed through chromatograph/mass spectrometer (GC/MS) in selected ion monitoring (SIM) mode, while SA content was quantified with HPLC.
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Effect of Salinity and Drought Stress on Growth an Endogenous Hormones of Soyben
Muhammad Hamayun,Sang-Mo Kang,Chae-In Na,Dongsheng Tang,Kwang-Ill Choi,Yong-Hyun Hwang,In-Jung Lee 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10
The adverse effects of salinity and drought on soybean cultivar Hwangkeumkong were also investigated. Endogenous bioactive gibberellins GA1 and GA4, jasmonic acid (JA), abscisic acid (ABA) and salicylic acid (SA) content and pertinent changes in response to basic and double NaCl (70 mM & 140 mM) and PEG (8% & 16%) were examined. We found that plant growth and yield components significantly reduced with the application of NaCl and PEG during pre-flowering and post-flowering growth periods. The endogenous bioactive GA1 and GA4content decreased under elevated salt and drought stress. However, an insignificant increase in GA4level was noted with 8% PEG, applied during post-flowering growth stage. JA levels significantly increased with NaCl and PEG applications, but declined with elevated PEG applied during post-flowering period. SA level drastically reduced with NaCl, while insignificantly reduced with PEG. Endogenous ABA contents of leaves increased with elevated NaCl and PEG application. The endogenous bioactive GA1 and GA4, JA and ABA content of soybean leaves were analyzed through chromatograph/ mass spectrometer (GC/MS) in selected ion monitoring (SIM) mode, while SAcontent was quantified with HPLC.
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Luping Zhou,Lulu Chen,Yaqin Wang,Jie Huang,Guo Ping Yang,Zhi-Rong Tang,Yicheng Wang,Jianwei Liao,Gan Zhou,Kai-hua Wei,Zhenyu Li,Dongsheng Ouyang 고려인삼학회 2019 Journal of Ginseng Research Vol.43 No.3
Background: Ginsenoside compound K (CK) is a promising drug candidate for rheumatoid arthritis. Thisstudy examined the impact of polymorphisms in NR1I2, adenosine triphosphateebinding cassette (ABC)transporter genes on the pharmacokinetics of CK in healthy Chinese individuals. Methods: Forty-two targeted variants in seven genes were genotyped in 54 participants using SequenomMassARRAY system to investigate their association with major pharmacokinetic parameters of CK and itsmetabolite 20(S)-protopanaxadiol (PPD). Subsequently, molecular docking was simulated using theAutoDock Vina program. Results: ABCC4 rs1751034 TT and rs1189437 TT were associated with increased exposure of CK anddecreased exposure of 20(S)-PPD, whereas CFTR rs4148688 heterozygous carriers had the lowestmaximum concentration (Cmax) of CK. The area under the curve from zero to the time of the lastquantifiable concentration (AUClast) of CK was decreased in NR1I2 rs1464602 and rs2472682 homozygouscarriers, while Cmax was significantly reduced only in rs2472682. ABCC4 rs1151471 and CFTR rs2283054influenced the pharmacokinetics of 20(S)-PPD. In addition, several variations in ABCC2, ABCC4, CFTR, andNR1I2 had minor effects on the pharmacokinetics of CK. Quality of the best homology model of multidrugresistance protein 4 (MRP4) was assessed, and the ligand interaction plot showed the mode of interactionof CK with different MRP4 residues. Conlusion: ABCC4 rs1751034 and rs1189437 affected the pharmacokinetics of both CK and 20(S)-PPD. NR1I2 rs1464602 and rs2472682 were only associated with the pharmacokinetics of CK. Thus, thesehereditary variances could partly explain the interindividual differences in the pharmacokinetics of CK.
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