Article
Chemistry, Applied
Feng Li, Mingyue Pan, Qi He, Qianhua Zhou, Qian Tang, Chengbin Gong
Summary: This study synthesized pyrene derivatives with different numbers of ester substitutions and investigated the effects on their properties. The results showed that an increase in the number of ester substituents caused red shifts in the spectra, a decrease in driving voltage, and changes in the electrochromic and electrofluorochromic properties. Mono- and tri-ester-functionalized pyrenes exhibited good electrochromic and electrofluorochromic performances.
Article
Engineering, Environmental
Tiechen Yu, Patrick Theato, Hongyan Yao, Huiling Liu, Yizeng Di, Zhonghui Sun, Shaowei Guan
Summary: Electrochromic/electrofluorescence (EC/EFC) bifunctional polymer materials with electrochemically switchable colors and fluorescence intensities were designed and synthesized in this study. The introduction of tetraphenylethylene (TPE) structure effectively reduced the absorption in the ground state and induced aggregation-induced emission (AIE) by changing the conjugation type. The structure-property relationships of the six designed polyimides were investigated, showing good EC/EFC dual-switching properties and cyclic stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xuejian Zhang, Jinming Zeng, Zipeng Xu, Mimi Zhu, Ping Liu
Summary: Electrochromic devices using synthesized TPB-PSSO as active materials showed fast response times and multicolor changes, with coloring and bleaching times as short as 4ms and 5ms, respectively.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Organic
Ze Huang, Fang Tang, Felicia He, Lin Kong, Jianyan Huang, Jiaxiang Yang, Aixiang Ding
Summary: Dual-state emission (DSE) molecules with high quantum yield have been synthesized by introducing pyrene and TPA units into the alpha-cyanostyrene/cyanostilbene skeleton. These compounds show high-contrast mechanofluorochromism and hold promise for information storage and bioimaging.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Environmental
Yu-Jen Shao, Min-Hsiu Tu, Guey-Sheng Liou
Summary: Generally, amino group instability limits its application in research and development. However, this study shows that triphenylamine derivatives with multiple para-amino substituents can retain their reversibility and stability under electrochemical redox processes. One of the derivatives, TPA-3N/HV, exhibits remarkable coloration efficiency, speed, and stability, making it a promising candidate for electrochromic devices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Pyae Thu, Mina Han
Summary: The development of pyrene-based fluorescent assembled systems with desirable emission characteristics is highly desired. In this investigation, a new azobenzene-functionalized pyrene derivative (AzPy) was designed and its emission properties in different environments were studied. The results showed that AzPy molecules experienced concentration quenching in dilute solution, but their emission intensities were enhanced when self-assembled into aggregates. The morphology and emission wavelength of the aggregates could be controlled by changing the concentration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Engineering, Chemical
Sihan Li, Yuxuan Yang, Kuo Su, Bao Zhang, Yaqing Feng
Summary: Perovskite solar cells have gained attention in the photovoltaic industry due to their high power conversion efficiency. However, limitations such as high cost and perovskite degradation have impeded their development and practical application. This article focuses on the need for dopant-free hole transport materials (HTMs) and highlights the growing interest in HTMs based on triphenylamine (TPA-HTMs) for their high hole mobility, film formation ability, and suitable energy levels. The literature reviewed here summarizes the correlations between performance and structure of TPA-HTMs and provides insights into their future development trends.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Shivan Bissesar, Davita M. E. van Raamsdonk, Daire J. Gibbons, Rene M. Williams
Summary: The conformational dependence of spin-orbit coupling and electronic coupling for charge separation in an electron donor-acceptor system has been investigated. Various kinetic and energetic aspects relevant to the spin-orbit charge transfer intersystem crossing (SOCT-ISC) mechanism have been discussed. (TD)-DFT calculations have been used to probe the spin-orbit coupling and predict the SOCT-ISC mechanism.
Article
Chemistry, Organic
Xin-Rui Chen, Qian-Wen Zhang, Ge-Ge Tao, Jun Xuan, Hong-Ping Zhou, Yu-Peng Tian, Fei Li
Summary: The development of an efficient umpolung relay three-component regioselective coupling reaction allows for a cascade reaction of aromatic nucleophilic addition and electrophilic substitution, with high regioselectivity and broad substrate scope. This methodology exhibits excellent functional group tolerance on arenes, including bromo, ester, nitro, cyano, formyl, and N-H groups.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Aysegul Gumus, Selcuk Gumus
Summary: A novel fluorescent quinoline-pyrene conjugate was synthesized and its structural, electronic, and metal coordination properties were investigated using experimental and computational methods.
Article
Chemistry, Inorganic & Nuclear
Penghui Jiang, Xiaofei Yang, Na Cao, Xiaoming Zhu, Fuxing Zhang, Sheng Hua Liu, Ya-Ping Ou
Summary: The synthesis of inorganic-organic mixed-valence systems with different aromatic bridge linkers using ferrocene (Fc)-ethynyl-triarylamine (TAA) compounds was studied. The target compounds were synthesized through Sonogashira cross-coupling reactions and characterized by various methods. The redox and electronic coupling properties of these compounds were investigated, and the experimental results were in line with the theoretical calculations.
INORGANICA CHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
K. Uzun, S. Sayin, O. Tamer, U. Cevik
Summary: Three organic semiconductors were synthesized and their structures and opto-electronic properties were evaluated in this study. The wing units of molecules have a greater impact on opto-electronic properties than the core units, and compounds with the same wing unit exhibit similar behaviors in terms of opto-electronic parameters.
JOURNAL OF MOLECULAR MODELING
(2021)
Article
Chemistry, Multidisciplinary
Jose David Quezada-Borja, Luz Maria Rodriguez-Valdez, Juan Pedro Palomares-Baez, Marco Antonio Chavez-Rojo, Linda-Lucila Landeros-Martinez, Mayra Cristina Martinez-Ceniceros, Gabriel Rojas-George, Isui Abril Garcia-Montoya, Nora Aydee Sanchez-Bojorge
Summary: New organic molecules were designed and analyzed as potential hole transport materials in perovskite solar cells. Through calculations and analysis, the electronic, optical, and hole transport properties of these molecules were determined, with some molecules showing higher energy levels than perovskite and Spiro-OMeTAD.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Yong Zhan, Xiaqian Lian
Summary: Two novel D-A type luminophores, XAO-Cz and XAO-TPA, were designed and synthesized using Suzuli-Miyaura coupling reaction, with xanthone as the electron-withdrawing and carbazole or triphenylamine as the electron donating. Optical research and theoretical calculation showed that both compounds exhibited twisted molecular conformation and strong intramolecular charge transfer (ICT) characteristics. Furthermore, both XAO-Cz and XAO-TPA showed fluorescent response to mechanical force, with wavelength redshifts of 14 nm and 48 nm, respectively. This work provides an effective strategy at the molecular level to achieve high contrast fluorescent response to mechanical force.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Haamid Haroon, Malik Wahid, Kowsar Majid
Summary: This study utilizes a cost-effective visible nanophotocatalyst system to efficiently couple aryl halides into biphenyls. The Cu3P/hBN composite promotes the separation of electron-hole pairs, enhances catalyst activity, and facilitates interaction between the catalyst and aromatic halide molecules.
ACS APPLIED NANO MATERIALS
(2022)
Article
Polymer Science
Yanzhuo Ma, Aijie Ma, Tao Luo, Siyu Xiao, Hongwei Zhou
Summary: This study reports a hydrogel that mimics the anisotropic structure of heart tissue and investigates its structure, properties, and biocompatibility. The results show that the mechanical performance of the hydrogel is significantly enhanced, similar to cardiac tissue, suggesting its potential application in cardiac tissue engineering.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Hongli Zhang, Yiling Zheng, Hongwei Zhou, Shilin Zhu, Jie Yang
Summary: Two-dimensional (2D) nanomaterial-based membranes hold great promise for various applications due to their attractive properties in molecular separation and transport. However, the swelling problem of 2D membranes has hindered their performance. In this study, the insertion of flexible and hydrophilic carboxylated cellulose nanofibers (CNFs) effectively stabilized the Ti3C2Tx MXene laminar architecture, enhancing mechanical strength, fixing interlayer distance, and improving anti-swelling properties. Furthermore, the intercalation of nanocelluloses increased interlayer spacing and created open gaps for fast and selective molecular transport. When applied in antibiotics separative filtration process, the resulting membrane exhibited excellent anti-swelling properties and high selectivity of antibiotics, making it ideal for various applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shuhang Deng, Li Wang, Chunxia Zhao, Dong Xiang, Hui Li, Bin Wang, Zhenyu Li, Hongwei Zhou, Yuanpeng Wu
Summary: A nature-inspired strategy for improving the lubrication properties of hydrogels is presented by forming a brush-like hydrophilic lubricating layer on the surface of the hydrogel.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Jiao Yan, Li Wang, Chunxia Zhao, Dong Xiang, Hui Li, Jingjuan Lai, Bin Wang, Zhenyu Li, Hongsheng Lu, Hongwei Zhou, Yuanpeng Wu
Summary: Wearable strain sensors with conductive hydrogels have great potential in electronic skins and human-machine interfaces. However, the signal transmission of conductive hydrogels is unstable due to environmental humidity and inherent material shortcomings. In this study, a novel moisture-proof conductive hydrogel was developed by incorporating dopamine-functionalized gold nanoparticles into carboxymethyl guar gum and acrylamide, showing high toughness (2.89 MJ m-3), mechanical strength (1.00 MPa), and moisture-proof sensing performance. The hydrogel-based strain sensor can accurately monitor major and subtle human movements, demonstrating good sensitivity and repeatability. Moreover, the sensor exhibits stable sensing signals even after being left for 1 hour, with no noticeable noise signal under different strains (25-300%) at 99% relative humidity. Importantly, this wearable strain sensing technology is suitable for wearable sensor devices in high humidity environments.
Article
Materials Science, Composites
Hongru He, Xi Wang, Pan Xu, Shengqi Ma, Henan Peng, Daming Wang, Hongwei Zhou, Chunhai Chen
Summary: Novel thin film nanocomposite (TFN) membranes with flower-like MnO2 nanomaterials doped in the polyamide (PA) skin layer were prepared for efficient organic solvent nanofiltration (OSN) by interfacial polymerization (IP). The optimized TFN-0.50 membrane exhibited significantly improved OSN performance compared to pristine thin film composite (TFC) and spherical MnO2 nanoparticle-doped (TFN-S) membranes. This improved performance is attributed to the unstable interfacial polymerization and the special flower-like structure of the MnO2 nanomaterials, allowing for increased solvent contact area and additional transport channels.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jinhao Gao, Xiaohan Yang, Zhenjuan Chen, Liwei Qian, Qingjun Meng, Zhijian Li, Hongwei Zhou, Hanbin Liu, Lulu Ning
Summary: CO2-responsive magnetic microspheres were prepared by enveloping Fe3O4 with SiO2 and grafting it on PDEA through ATRP technique, followed by molecular imprinting using PDA with BSA as a template. The microspheres showed good selectivity and reversibility in adsorbing BSA under CO2 stimulus. The interaction between BSA and PDEA was theoretically studied and the conformation of proteins remained unchanged under CO2 stimulus. This work provides a strategy to develop selective and switchable materials for protein recognition and separation.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bohui Zheng, Hongwei Zhou, Zhao Wang, Yang Gao, Guoxu Zhao, Hongli Zhang, Xilang Jin, Hanbin Liu, Zhihan Qin, Weixing Chen, Aijie Ma, Weifeng Zhao, Yuanpeng Wu
Summary: This research develops multiscale ionic organohydrogels with outstanding isotropic mechanical robustness by incorporating polyacrylamide (PAM) hydrogel, Zn2+, and a binary solvent into a crosslinked fibrous mat. These organohydrogels exhibit high tensile strength, stretchability, anti-fatigue property, skin-like mechanical behaviors, and ionic conductivity. They show promising potential as materials for flexible electronic devices operating under wide temperature ranges and harsh mechanical conditions.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Yang Gao, Hongwei Zhou, Bohui Zheng, Zhao Wang, Guoxu Zhao, Hongli Zhang, Hanbin Liu, Xilang Jin, Weixing Chen, Aijie Ma, Yuanpeng Wu
Summary: Microgel-enhanced thermal-sensitive hydrogels are utilized as electrolytes to achieve active heat management, controllable energy storage, and mechanical flexibility in supercapacitors. The improved thermal sensitivity of microgel-enhanced hydrogel electrolyte allows efficient heat consumption through volume phase transition, while slowing down ion transport to weaken the energy storage process. Reversibly controlled energy storage is demonstrated by varying temperature below and above the volume phase transition temperature of the hydrogel electrolytes. The hydrogel electrolytes also provide mechanical flexibility, allowing stable charge-discharge under a bending angle from 0 to 180 degrees. Overall, this work provides a new clue for constructing intelligent hydrogel devices through elegant structure design.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hongru He, Pan Xu, Shuli Wang, Xi Wang, Shengqi Ma, Henan Peng, Yunxia Lv, Hongwei Zhou, Chunhai Chen
Summary: A copper (II) ions-doped thin film composite (TFC-Cu) membrane with ridge-valley morphology was prepared by incorporating copper (II) ions in the aqueous phase during interfacial polymerization (IP). The ridge-valley morphology increases the contact area between the membrane and the solvent, leading to improved solvent permeability. The hydrophilicity and permeability of the membrane can be adjusted by changing the content of copper (II) ions in the aqueous phase. The modified TFC-Cu-100 membrane exhibited significantly enhanced methanol permeation performance and high dye retention level, as well as maintained good long-term organic solvent nanofiltration (OSN) performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Huacui Xiang, Zhijian Li, Wei Wang, Haiwei Wu, Hongwei Zhou, Yonghao Ni, Hanbin Liu
Summary: A degradable paper-based flexible sensor is prepared by reassembling cellulose nanofibers and lignin nanoparticles from natural woods, enabling it to work under water with exceptional long-term durability. The sensor exhibits high gauge factor, response time, and stability in both air and under water. This novel strategy of biomimetic re-engineering of nanomaterials from natural wood can pave the way for highly stable paper-based flexible sensors for wearable systems and underwater equipment.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Chuanjuan Wei, Hongwei Zhou, Bohui Zheng, Huihui Zheng, Qinsi Shu, Haotian Du, Aijie Ma, Hanbin Liu
Summary: In this study, fully flexible and mechanically robust tactile sensors were fabricated by introducing a core-shell structured fibrous piezoelectric mat. The sensors demonstrated improved elasticity, stretchability, and excellent piezoelectric effects. They were able to properly respond to mechanical stimuli even in deformed states.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Jingjuan Lai, Fengyu Guo, Li Wang, Chunxia Zhao, Dong Xiang, Hui Li, Bin Wang, Peng An, Zhenyu Li, Hongwei Zhou, Yuanpeng Wu
Summary: With the increasing industrialization, the need for oil-water separation in oil spill accidents and wastewater treatments has become urgent. However, developing superhydrophobic materials for harsh environments and remote drives still poses a significant challenge. This study presents an alternative solution by decorating poly lauryl methacrylate (LMA) on Fe foam via the solution polymerization method. The prepared Fe foam exhibits excellent superhydrophobicity (>150 degrees) under a wide pH range (1 < pH < 12) and temperature range (-55°C to 180°C), with high separation efficiency (>99.1%), cycle stability (>50 times), and oil flux (63.7-114.6 kL m-2 h-1) against various oil/water mixtures under gravity. Additionally, remote magnetic driving enables oil harvesting both above and beneath the water.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Huihui Zheng, Hongwei Zhou, Zhao Wang, Shuman Zhang, Hongli Zhang
Summary: In this work, self-healing polyampholyte hydrogels are developed and explored in constructing wearable mechanosensors, including resistive strain sensors and capacitive pressure sensors. The resulting hydrogels exhibit outstanding self-healing ability, transparency, ionic conductivity, and stretchability. The resistive strain sensors show a gauge factor of 2.9 over a strain range of 0-350% and a low response time of 250 ms, while the capacitive pressure sensors achieve a gauge factor of 2.17 kPa(-1) and a sensing range of 0-7.35 kPa, with high cycling stability.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Hongru He, Pan Xu, Xi Wang, Shengqi Ma, Zhixiao Liu, Henan Peng, Daming Wang, Hongwei Zhou, Chunhai Chen
Summary: A novel TFN membrane was prepared by doping HPCSs nanoparticles in polyamide separating layer, showing superior OSN performance. The ridge-valley morphology on the membrane surface effectively increased the contact area between the membrane and the solvent, improving permeation capacity. The TFN-HPCSs-200 membrane exhibited high methanol permeation capacity and retention rate of RDB dye, as well as stable solvent resistance and long-term stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Jinhao Gao, Xiaohan Yang, Zhenjuan Chen, Liwei Qian, Qingjun Meng, Zhijian Li, Hongwei Zhou, Hanbin Liu, Lulu Ning
Summary: CO2-responsive magnetic microspheres were prepared by grafting Fe3O4 enveloped with SiO2 on PDEA through ATRP technique. The molecularly imprinted microspheres, Fe3O4/SiO2/PDEA-MIP, showed good selectivity for BSA with an adsorption capacity of 55 mg g-1. The reversible CO2 responsiveness was confirmed and the conformation of proteins remained unchanged under the CO2 stimulus.
ACS APPLIED POLYMER MATERIALS
(2023)