Article
Materials Science, Multidisciplinary
Zhijia Zhang, Huifeng Mei, Qiang Wang, Rui Li, Hao Wei, Xiao Ouyang
Summary: This paper introduces a polyurethane elastomer with self-healing ability, which is designed and prepared based on 2-ureido-4 [1H]-pyrimidinone compound through a simple physical blending method. It can heal at room temperature without external stimuli and maintains excellent mechanical properties. At higher temperatures, the healing time is shorter and the recovery effect is better.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Chiara Turrina, Jennifer Cookman, Riccardo Bellan, Jiankang Song, Margret Paar, Patricia Y. W. Dankers, Sonja Berensmeier, Sebastian P. Schwaminger
Summary: Antimicrobial peptides (AMPs) have the ability to kill bacteria, but their toxicity limits their application. A study found that the combination of magnetically controlled drug delivery and supramolecular engineering can reduce the dosage of AMPs, control the delivery, and improve their cytocompatibility. It was also found that using superparamagnetic iron oxide nanoparticles as a drug carrier and combining them with AMPs can enhance the antimicrobial activity of the peptides and reduce their toxicity to human cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Polymer Science
Wenyu Fu, Huifeng Mei, Zhijia Zhang, Qiang Wang, Rui Li, Songsong Zhang, Guojun Wang, Hao Wei, Chenyuan Zhang, Cunguo Lin, Lei Wang
Summary: Self-healing polyurethane elastomers with UPy-based supramolecular polymer have shown excellent self-healing performance and chemical resistance, which contributes to their extended lifespan, adaptability to circular economy, and waste reduction.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Paul J. Besseling, Tristan Mes, Anton W. Bosman, Joris W. Peeters, Henk M. Janssen, Maarten H. Bakker, Joost O. Fledderus, Martin Teraa, Marianne C. Verhaar, Hendrik Gremmels, Patricia Y. W. Dankers
Summary: Supramolecular biomaterials based on ureido-pyrimidinone (UPy) moieties are versatile polymer materials that can be tailored to various applications with good biocompatibility and solubility, showing potential for use in regenerative medicine and biomedical fields.
JOURNAL OF POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yuanjing Gan, Xiaosen Pan, Jie Li, Miaomiao Liu, Boyue Liu, Meng Gao, Ning Ma, Hao Wei
Summary: UPy derivatives were used as templates to induce the mineralization and growth of CaCO3. It was found that a multilayer crystal structure was easier to achieve at lower Ca2+ concentrations (less than 0.01 mol L-1), while under alkaline conditions, the quadruple hydrogen bonds would be destroyed, weakening the template's regulation effect on the morphology of CaCO3 crystals. UPy derivatives with carboxylic acid groups played a crucial role in CaCO3 crystallization with unique morphologies.
Article
Polymer Science
Zhen Shi, Qi Wang, Gui-Fei Li, Yu-Feng Shou, Hong-Jie Zong, Shi-Feng Yan, Kun-Xi Zhang, Jing-Bo Yin
Summary: The self-healing hydrogels prepared with polyethylene glycol and other substances exhibit excellent self-healing and shear-thinning properties, and the dual crosslinking enhances their mechanical properties and stability.
CHINESE JOURNAL OF POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Wei Zuo, Yu Tao, Zhipeng Luo, Anyang Li, Shanshan Wang, Xinrui Qiao, Fen Ma, Chuandong Jia
Summary: Inspired by the signal transduction function of organophosphates, bioactive organophosphates were used as chiral nodes to control the stereoselective assembly of hydrogen-bonded anionic cages. Antibiotics such as phosphonomycin and clindamycin phosphate, antiviral drug tenofovir, and natural product AMP were assembled with an achiral bis-monourea ligand to form quadruple or triple helicates with stereoselectivity. The stereoselectivity could be enhanced by lowering temperature or using stronger-binding cations as templates. Enantioselectivity was achieved when binding chiral quaternary ammonium cations with the chiral anionic cages as hosts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xiaotong Zhao, Heng Wang, Boyang Li, Wenyao Zhang, Xiaopeng Li, Wei Zhao, Christoph Janiak, Andrew W. Heard, Xiao-Juan Yang, Biao Wu
Summary: Anion-coordination-driven assembly (ACDA) is a powerful method for constructing anionic supramolecular architectures. Expanding the anion centers to organic tris-carboxylates has shown promising ability in constructing novel topologies with increasing complexity and diversity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Sheng-Ze Zhao, Hua-Wei Zhou, Chun-Yan Qin, Hao-Zhe Zhang, Yong-Hua Li, Masahiro Yamashita, Shi Wang
Summary: The field of anion supramolecular chemistry has gained increasing attention in recent years, particularly in the synthesis of ionic spin crossover (SCO) complexes. This review focuses on the effects of anions on the molecular, supramolecular structures, and magnetic properties of discrete SCO compounds. It provides a summary of the various geometries of anions used in synthesis, analyzes the SCO properties of representative anion-based SCO compounds based on supramolecular interactions, geometry, and charge of anions, outlines the effects of anions on SCO complexes with different metal centers and ligands, and discusses future prospects for the synthesis of new types of ionic SCO complexes.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Peng Zhang, Yafeng Wei, Rui Li, Yuqin Wan, Xinyue Zhang, Xiao Ouyang, Guojun Wang, Ning Ma, Hao Wei
Summary: A self-healable and highly stretchable epoxy resin system was designed and prepared, showing high healing efficiency at high temperatures; the composite of UPy-modified epoxy resin and UPy-terminated supramolecular polymers was used for the fabrication of this epoxy resin system.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Sahidul Mondal, Ambreen Rashid, Pradyut Ghosh
Summary: In this study, fluorescent chemosensors with a benzoselenodiazole/benzothiadiazole unit were designed and synthesized. These chemosensors exhibited selectivity towards F- and showed a visible color change upon the addition of F-. The sensing mechanism was found to involve the deprotonation of the -NH proton of the benzimidazole group by F-. One of the chemosensors showed higher selectivity and sensitivity towards F- compared to the other.
INORGANICA CHIMICA ACTA
(2022)
Review
Chemistry, Physical
Tapas Guchhait, Lipsita Panda, Sushree Prajna Rout, Monalisa Giri
Summary: This study focuses on the exchange process between proton and deuterium isotopes within the molecule of anion receptors, with particular emphasis on the proton to deuterium (1H -> 2D) exchange facilitated by fluoride ion. Both 1H NMR and 19F NMR spectroscopy are useful for monitoring the exchange studies, but 19F NMR spectroscopy provides more detailed information than 1H NMR spectroscopy. Therefore, the 19F NMR spectroscopic method is important for investigating the solution state structural behavior of fluoride ion complexes. This study also investigates the exchangeable protons in various types of anion receptors, providing direct evidence of sequential substitution of protons with deuterium atoms in solvent molecules. (c) 2023 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Chemistry, Multidisciplinary
Zhifeng Deng, Cheng Wang, Haichang Zhang, Taotao Ai, Kaichang Kou
Summary: The excessive discharge of fluoride ions in the environment poses a potential hazard to humans, highlighting the urgent need for the development of a highly efficient and convenient recognition method. Colorimetric and fluorescence fluoride chemosensors based on hydrogen-bond interactions exhibit obvious color changes, high sensitivity and selectivity, and additional functions.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yi Wang, Runze Liu, Ming Shi, Panwang Zhou, Keli Han, Can Li, Rengui Li
Summary: By introducing oxygen vacancies on hexagonal tungsten oxide (WO3), we achieved photoinduced CO2 reduction to selectively produce CO under light irradiation, as verified by isotope labeling experiment. The evolution of oxygen vacancies under light irradiation promotes the adsorption and activation of CO2 molecules, leading to the reduction of CO2 to CO on hexagonal WO3 via an oxygen vacancies-involved process. The presence of water further enhances the formation of CO2 reduction intermediates and promotes the CO2 photoreduction. Our work provides insight into the mechanism of CO2 conversion to CO under light irradiation.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Tianxin Bai, Xiaochen Wang, Zhongyi Wang, Sujun Ji, Xuan Meng, Qiujie Wang, Ruiling Zhang, Peigeng Han, Ke-li Han, Junsheng Chen, Feng Liu, Bin Yang
Summary: Double perovskites (DPs) are promising candidates for white light-emitting diodes (WLEDs) due to their intrinsic broadband emission. In this study, a series of highly luminescent one-dimensional DP-inspired materials were synthesized using a fluorinated organic cation, and efficient warm-white photoluminescence was achieved. By doping a small amount of antimony ion, lead-free metal-halide WLEDs with superior performance were fabricated.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xiaohong Ren, Zhuohua Sun, Jiqing Lu, Jinling Cheng, Panwang Zhou, Xiaoqiang Yu, Zeming Rong, Changzhi Li
Summary: In this study, a novel method for upgrading biomass-derived phenolic monomers through hydrogen-free hydrodeoxygenation (HDO) was proposed and evaluated. The HDO process was combined with the activation of water and aqueous phase reforming of in situ generated methanol over a nano-porous Ni catalyst, resulting in a one-pot approach with high selectivity of bio-phenol. DFT calculations confirmed the crucial role of the Ni catalyst in activating water and facilitating the subsequent HDO process.
Article
Chemistry, Physical
Li Zhao, Guiyin Xu, Yahui Guo, Haixia Zheng, Peng Dong, Junsheng Chen
Summary: This study investigates the deactivation mechanism of trans-form 2'-hydroxychalcone (2'HC) which undergoes photoisomerization and excited state intramolecular proton transfer (ESIPT). Four minimum energy conical intersections (MECIs) are found to be involved in the deactivation process. The results suggest that modifying the molecular structure to enhance the ESIPT process can further improve the practical application of 2'HC as a molecular photoswitch.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Gaoshang Jiang, Yinhua Ma, Junxia Ding, Jianyong Liu, Runze Liu, Panwang Zhou
Summary: N-protonation is widely used to switch the fluorescence on/off in acidic conditions for fluorophores, which is crucial for pH monitoring. However, the underlying mechanism for fluorescence regulation through N-protonation is still unknown. In this study, theoretical approaches were used to investigate the excited state deactivation processes of a series of nitrogen-containing fluorescent probes. Two mechanisms for the complex fluorescence phenomena by N-protonation were identified: one involves the transition to a pp* twisted intramolecular charge transfer (TICT) state, and the other occurs when a dark np* state dominates the nonradiative decay pathway, accompanied by structural twisting. The formation of the TICT state is closely related to the conjugated p-electrons on the single bond linking the acceptor and donor parts of the fluorophores, providing a simple strategy for evaluating the occurrence of the TICT process. This research offers insights for the rational design of functional fluorophores involving TICT process in the excited states.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Gaoshang Jiang, Jianyong Liu, Panwang Zhou
Summary: The fluorescein derivative Fl-Me with aggregation-induced emission (AIE) property has been synthesized, and its fluorescence quenching and enhancement mechanism have been investigated. The AIE phenomenon in Fl-Me is due to the closure of the dark-state quenching channel and the absence of rotation and pi-pi stacking in the crystalline state. This work provides deeper insight into the photophysical mechanism of Fl-Me and is expected to aid in the development of fluorescein-based AIE materials.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Mengting Fan, Yong Tang, Chen Li, Bo Chen, Ting Wang, Panwang Zhou, Xiaoyan Cui
Summary: Introducing heteroatoms in organic fluorophores allows for tuning their photophysical properties without structural decorations. Silicon-substituted coumarins (Si-coumarins) are analogues of coumarin with ester oxygen atoms replaced by silicon atoms, which exhibit significant fluorescence enhancement through the formation of inter/intramolecular hydrogen bonds. Understanding the role of hydrogen bonds in Si-coumarins offers potential strategies for designing novel fluorophores.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Junsheng Chen, Ajeet Kumar, Cecilia Cerretani, Tom Vosch, Donatas Zigmantas, Erling Thyrhaug
Summary: Due to desirable optical properties, such as efficient luminescence and large Stokes shift, DNA-templated silver nanoclusters (DNA-AgNCs) have received significant attention over the past decade. In this study, we investigate the early time relaxation dynamics of a 16-atom silver cluster (DNA-Ag16NC) with NIR emission and an unusually large Stokes shift. By using ultrafast optical spectroscopy, we extract a kinetic model to clarify the physical picture of the photoinduced dynamics, which can guide further research on the electronic structure and dynamics of these novel objects and their potential applications.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Xin Mao, Zhongyi Wang, Fen Zhang, Hong Yin, Xin Xu, Junsheng Chen, Zhen Chen, Junhua Luo, Keli Han, Ruiling Zhang
Summary: In this paper, the synthesis and photophysical properties of high-quality Sb3+-doped 0D Rb2ScCl5(H2O) perovskite single crystals are reported. It is found that the emission quantum yield can be dramatically enhanced from less than 1% to about 53% via Sb3+ doping. Spectroscopic characterizations indicate that the photoluminescence enhancement is a result of the efficient energy transfer from Sb3+ to the emissive self-trapped excitons. Additionally, 0.2%Sb3+:Rb2ScCl5(H2O) single crystals exhibit potential application in direct X-ray detection with a high sensitivity of 58.5 mu C Gy-1 cm-2.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jie Hou, Runze Liu, Peigeng Han, Cheng Luo, Zhiling Ding, Wei Zhou, Cheng Li, Juntao Li, Yang Zhao, Junsheng Chen, Jianyong Liu, Bin Yang
Summary: By manipulating the phase, size, morphology, and chemical composition of manganese doped cesium zinc halide nanocrystals, the intrinsic and extrinsic factors affecting the localized exciton photoluminescence can be decoupled, which determines the emission efficiency. Unlike for free excitons, the phase and crystal morphology do not play major roles for the localized exciton-based photoluminescence. This work provides a new insight for the study of localized exciton dynamics in metal halide nanocrystals.
Article
Biochemistry & Molecular Biology
Yuxi Wang, Meng Zhang, Wenzhi Li, Yi Wang, Panwang Zhou
Summary: This study investigates the sensing mechanism of DAPH-DNP towards thiophenols using density functional theory and time-dependent density functional theory. The DNP group plays a crucial role in charge transfer excitation, leading to fluorescence quenching behavior. After the reaction between DAPH-DNP and thiophenol, the release of the hydroxyl group results in the generation of DAPH with strong fluorescence. The sensing mechanism of DAPH-DNP towards thiophenol is based on the PET mechanism.
Article
Materials Science, Multidisciplinary
Tianxin Bai, Xiaochen Wang, Yanmei He, Haiwen Wei, Yan Su, Junsheng Chen
Summary: Low dimensional lead-free metal halides have attracted attention in the development of multifunctional optoelectronic materials due to their tunable properties. However, most reported metal halides only work in the UV-visible range and suffer from limited thermal stability or solution processability. In this study, a hybrid cation approach is proposed to develop a zero-dimensional metal halide with both thermal stability and solution processability, using mixed organic-inorganic cations. This material shows multifunctional properties such as thermochromism, light detection, and NIR light emitting.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Xin Mao, Zhongyi Wang, Fen Zhang, Hong Yin, Xin Xu, Junsheng Chen, Zhen Chen, Junhua Luo, Keli Han, Ruiling Zhang
Summary: In this study, high-quality Sb3+-doped 0D Rb2ScCl5(H2O) perovskite single crystals were synthesized and their photophysical properties were investigated. The introduction of Sb3+ dramatically enhanced the emission quantum yield from less than 1% to about 53%. Spectroscopic characterizations revealed that the enhancement was attributed to efficient energy transfer from Sb3+ to the emissive self-trapped excitons (STE). Moreover, 0.2%Sb3+:Rb2ScCl5(H2O) single crystals showed potential applications in direct X-ray detection with a high sensitivity of 58.5 mu C Gy(-1) cm(-2).
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Pengfei Cheng, Keli Han, Junsheng Chen
Summary: Metal halide perovskites, with their excellent photophysical properties, have attracted extensive attention in the field of photocatalysis. However, the toxicity and instability issues of conventional lead-based perovskites limit their application prospects. The rapid development of lead-free halide perovskites (LFHPs) provides new opportunities for photocatalysis. This Review summarizes the recent progresses of LFHPs for photocatalytic applications and discusses strategies to improve their performance and stability.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Li Zhao, Xuehui Geng, Guoxia Han, Yahui Guo, Runze Liu, Junsheng Chen
Summary: This study investigates the excited state decay mechanism of cytidine in both gas phase and aqueous solution using high-level electronic structure calculations and non-adiabatic dynamic simulations. It is found that cytidine undergoes barrierless decay driven by ring-puckering motion and relaxation channel with a small energy barrier driven by elongation motion of C=O bond. The presence of water molecules significantly reduces the energy barrier, suggesting that the long-lived decay channel in aqueous solution is likely attributed to the cytidine-water intermolecular hydrogen/proton transfer process. These findings contribute to a better understanding of the photostability of DNAs and RNAs and resolve the debate on the cytidine excited-state decay mechanism.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
