MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2025
·
IF 2.7
Jiaxuan Wang,Danni Wang,Jing Lv,Feng Li,Tao Zhuang,Aziz Saparbaev,Urol Kudratovich Makhmanov,Mingliang Sun
PFO-DDQ is a donor−acceptor (D–A) type conjugated polymer, with its backbone consisting of 95% 9,9-di-octylfluorene (DOF) and 5% 2,3-dimethyl-5,8-dithien-2-yl-quinoxalines (DDQ). PFO-DDQ nanoparticles (NPs) suspensions are prepared using the nanoprecipitation method by varying the precursor solution concentration. The photoluminescence (PL) spectrum of the nanoparticles is determined by the energy transfer between the fluorene and the narrow-bandgap DDQ segments. The fluorescence of the NPs can be tuned from orange to blue by adjusting the concentration of the precursor solution. PFO-DDQ, the nonfullerene acceptor small molecule (ITIC), and PFO-DDQ/ITIC bulk heterojunction (BHJ) NPs suspensions are prepared using the nanoprecipitation method, and their photocatalytic antibacterial properties are evaluated. The results showed that, under 2 h of exposure to a 35 mW cm − 2 LED light, the antimicrobial rates of the three 40 µg mL −1 nanoparticles suspensions against Escherichia coli ( E . coli ) are 98.28%, 100%, and 99.88%, respectively. The enhanced light absorption, improved charge transfer efficiency, and the crystalline phase of ITIC contributed to the faster photocatalytic antibacterial rate of PFO-DDQ/ITIC BHJ nanoparticles.
研究领域:
材料科学
·
生物医学工程
·
光化学
✓ 已验证
产品关联
DOI
高影响因子
SYNTHETIC METALS
·
2018
·
IF 2.526
Yingqiang Li,Xin Qi,Weiping Wang,Chao Gao,Ning Zhu,Ganghong Liu,Yuqing Zhang,Fang Lv,Bo Qu
A small molecule 3,9-bis(2-methylene-(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 (ITIC) was used as the additive for the electron transport layer (ETL) of phenyl-C61-butyric acid methyl ester (PC 61 BM) in planar inverted perovskite solar cells (PSCs) fabricated by the flash method. Due to the proper LUMO level and decent electrical conductivity of ITIC, the photovoltaic properties of planar inverted PSCs based on the smooth PC 61 BM:ITIC (2 wt%) ETL were promoted, and the power conversion efficiency (PCE) and the short-circuit current density (J sc ) of the devices were increased to 12.41% and 18.53 mA cm −2 , respectively, which were 13.3% and 13.5% enhancements relative to those of the undoped control devices. Therefore, ITIC was a promising additive for PC 61 BM ETL in inverted PSCs and the photovoltaic properties of devices could be improved accordingly.
研究领域:
材料科学
·
能源技术
·
光伏器件
✓ 已验证
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2017
·
IF 9.466
Fengyuan Lin,Wei Huang,Haitao Sun,Jingming Xin,Hao Zeng,Tingbin Yang,Meilin Li,Xing Zhang,Wei Ma,Yongye Liang
Rapid advances have been recently demonstrated in polymer solar cells (PSCs) with fused-ring electron acceptors (FREAs), which have low bandgap and high electron mobility. Semiconducting polymer donors with medium bandgap to complement the absorption and proper energy level alignments to minimize energy loss are preferred in this system, but there are few studies on them. Here, we explore thieno[3,4-c]pyrrole-4,6(5H)-dione (TPD) based polymers for high performance PSCs with FREAs. A new TPD polymer, PMOT16, is developed with 4-methoxyl thiophene as conjugated side chains on the benzo[1,2-b:4,5-b′]dithiophene unit. PMOT16 exhibits lower energy levels and enhanced interactions compared to the thiophene counterpart, PBDTT-6ttTPD. However, in PSCs with ITIC as the acceptor, PMOT16 shows inferior performance to PBDTT-6ttTPD on short circuit current (JSC) and fill factor. When IDIC with lower energy levels is employed as acceptor, PMOT16 PSCs show decent power conversion efficiencies (PCEs) of around 10% with low energy loss, which surpasses that of PBDTT-6ttTPD due to increase of open circuit voltage. It is found that the lower JSC and inferior PCE in PMOT16:ITIC are ascribed to the approaching of energy levels between PMOT16 and ITIC. Our studies highlight the potential of TPD based polymers for high performance FREA-PSCs and the necessity for tuning energy level alignments.
研究领域:
材料科学
·
太阳能
·
有机电子学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Yue Wang,Qihang Ding,Gongcheng Ma,Zhiwei Zhang,Jiaqi Wang,Chang Lu,Chunbai Xiang,Kun Qian,Jun Zheng,Yaming Shan,Pengfei Zhang,Zhen Cheng,Ping Gong,Qi Zhao
Bacterial pneumonia has garnered significant attention in the realm of infectious diseases owing to a surge in the incidence of severe infections coupled with the growing scarcity of efficacious therapeutic modalities. Antibiotic treatment is still an irreplaceable method for bacterial pneumonia because of its strong bactericidal activity and good clinical efficacy. However, the mucus layer forming after a bacterial infection in the lungs has been considered as the “Achilles’ heels” facing the clinical application of such treatment. Herein, traceable biomimetic nanoantibiotics (BioNanoCFPs) were developed by loading indacenodithieno[3,2-b]thiophene (ITIC) and cefoperazone (CFP) in nanoplatforms coated with natural killer (NK) cell membranes. The BioNanoCFP exhibited excellent demonstrated mucus-penetrating abilities, facilitating their arrival at the infection site. The presence of Toll-like receptors in the NK cell membrane rendered the BioNanoCFP with the capability to recognize pathogen-associated molecular patterns within bacteria, allowing precise targeting of bacterial colonization sites and achieving substantial therapeutic efficacy. Overall, our findings demonstrate the viability and desirability of using NK cell membrane-mediated drug delivery as a promising strategy for precision treatment.
研究领域:
药学
·
纳米技术
·
传染病学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）