Article
Chemistry, Multidisciplinary
Hugh P. Ryan, Zachary S. Fishman, Jacob T. Pawlik, Angela Grommet, Malgorzata Musial, Felix Rizzuto, James C. Booth, Christian J. Long, Kathleen Schwarz, Nathan D. Orloff, Jonathan R. Nitschke, Angela C. Stelson
Summary: The environment around a host-guest complex is determined by intermolecular interactions and plays a crucial role in their solubility and reaction rates. However, these interactions are difficult to detect with standard analytical techniques. In this study, we used microwave microfluidic measurements and principal component analysis to quantify the hydration and ion pairing of a coordination cage. The results showed that introducing guest molecules into the solution displaced the bound counterions and the solvent solubility of the guest had the greatest impact on the solvent and ion-pairing dynamics surrounding the host.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Xiaoqing Liu, Yanyan Pan, Yunxiang Lei, Nannan Liu, Wenbo Dai, Miaochang Liu, Zhengxu Cai, Huayue Wu, Xiaobo Huang, Yuping Dong
Summary: Guest/host phosphorescence materials with different molecular morphologies have been studied in this work, revealing that the morphology directly affects the phosphorescence properties. The guests form clusters in the host with strong intermolecular interactions for stabilizing triplet excitons, while hosts have weak intermolecular interactions to accept guest clusters, leading to excellent RTP properties in the doped materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Review
Chemistry, Inorganic & Nuclear
Xi Yang, Di Yuan, Jinhong Hou, Adam C. Sedgwick, Suying Xu, Tony D. James, Leyu Wang
Summary: The field of supramolecular chemistry has rapidly expanded and become highly influential in various areas like biomedicine, energy materials, catalysis, and sensing. The combination of host/guest chemistry with functional inorganic nanoparticles has led to many new applications in drug delivery, bioimaging, and sensing. Recent progress in the development of organic/inorganic supramolecular nano-systems incorporating host/guest chemistry has been summarized, highlighting their applications in drug delivery, biological imaging, and sensing.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Zhizhi Sheng, Yi Ding, Guangyong Li, Chen Fu, Yinglai Hou, Jing Lyu, Kun Zhang, Xuetong Zhang
Summary: Solid-liquid host-guest composites combine the advantages of both solid and liquid components, offering unique properties and a wide range of potential applications.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yan Yu, Bin Huang, Yan Zhao, Yunfeng Zhao, Lina Dai, Zhijie Zhang, Hua-Feng Fei
Summary: Polysiloxane-based dielectric elastomers have great potential as electroactive soft materials, but their low permittivity has hindered practical applications. This study demonstrates that introducing cyanosilicone oil into the elastomer matrix can significantly increase the permittivity and enhance the dielectric relaxation processes. The resulting elastomer composites exhibit lower Young's modulus and dielectric loss.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Composites
Yuhang Sun, Hui Ling, Gang Li, Xiaoping Yang
Summary: A novel carbon fiber interphase (CF@PDI-gamma CD) with mechanochromic properties was constructed using a self-assembled PDI gamma CD inclusion complex. The interfacial self-reporting damage, interface property, and reinforcing mechanism of CFRP composites were investigated. The CF@PDI-gamma CD composites showed increased chemical activity and roughness on the surface, as well as enhanced interfacial shear strength, attributed to both mechanical interlocking and chemical bonding.
COMPOSITES COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Yang Cui, Yujie Zhao, Jie Wu, Hongwei Hou
Summary: This review summarizes the development and application of homogeneous host-guest MOF composites, focusing on the mechanisms and regulating factors of H-G interaction, as well as the synergistic mechanisms during the catalytic process. Challenges and perspectives for future development are proposed.
Article
Chemistry, Physical
Jayashrita Debnath, Michele Parrinello
Summary: The long time scale associated with ligand residence times makes their computation challenging. The recently developed Gaussian mixture based enhanced sampling technique allows for the computation of residence times and enables an understanding of their unbinding mechanism. Guest unbinding often occurs through a series of intermediate states, which can be characterized by the number of water molecules in the binding cavity. In several cases, the residence time is correlated with water trapping times in the cavity.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2022)
Article
Chemistry, Multidisciplinary
Yu Tian, Jie Yang, Zhenjiang Liu, Mingxue Gao, Xiaoning Li, Weilong Che, Manman Fang, Zhen Li
Summary: A new host-guest doping system was developed in this study to achieve turn-on RTP effect through co-crystallization or grinding, creating organic RTP materials with stimulus-responsive characteristics. Multistage stimulus-responsive RTP characteristics were achieved by introducing pyridine group, and anti-counterfeiting printings were realized through various methods, moving RTP materials closer to commercialization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Z. Chen, R. Khoo, A. Garzon-Ruiz, C. Yang, C. L. Anderson, A. Navarro, X. Zhang, J. Zhang, Y. Lv, Y. Liu
Summary: This study presents a class of unprecedented quinoid-viologen conjugates with an extended pi-system of the viologen units through N-substitution. These molecules exhibit intriguing optical and electronic properties that combine the characteristics of both viologen and quinoid constituents.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Polymer Science
S. Soreto Teixeira, Nuno Gama, Teresa Cordeiro, A. Barros-Timmons, Madalena Dionisio, Manuel P. F. Graca, L. Cadillon Costa
Summary: Composites of LiFe5O8 (LFO) particles dispersed in PLLA were prepared by solvent casting, showing a decrease in crystallinity with increasing LFO content, good dispersion of LFO particles, and no interaction with the polymeric matrix. Impedance spectroscopy revealed dynamic relaxation processes at lower LFO content, while conductivity dominated at higher concentrations following the percolation law. Applications can vary depending on LFO content, with energy storage for low concentrations and electromagnetic radiation shielding for concentrations above the percolation threshold.
Article
Chemistry, Multidisciplinary
Yunhan Zhao, Bingbing Ding, Zizhao Huang, Xiang Ma
Summary: This study reports a series of simple multi-guest/host organic long persistent luminescence (OLPL) materials with high quantum yield, achieved by doping phenothiazine derivative guest molecules into 9H-xanthen-9-one host matrices. The F-substituted phenothiazine derivative doping system exhibits highly efficient emission with a quantum yield of 46.3% in air. Moreover, these OLPL materials show promising potential for applications in the field of heat resistance due to their high luminescence efficiency at high temperatures.
Article
Polymer Science
Motofumi Osaki, Shin Yonei, Chiharu Ueda, Ryohei Ikura, Junsu Park, Hiroyasu Yamaguchi, Akira Harada, Masaru Tanaka, Yoshinori Takashima
Summary: Water plays crucial roles in the mechanical properties of host-guest hydrogels, with different water contents affecting the mechanical properties, and the nonfreezing bound water and intermediate water in the gels influencing toughness and readhesion force.
Review
Chemistry, Multidisciplinary
Xi Yan, Hao Peng, Yuan Xiang, Juan Wang, Lan Yu, Ye Tao, Huanhuan Li, Wei Huang, Runfeng Chen
Summary: Research focus in the field of organic electronics is currently on the design and characterization of purely organic room-temperature phosphorescent (RTP) materials. Host-guest material systems, with the ability to control and modulate properties, are promising candidates for high-performance RTP materials with diverse applications.
Review
Chemistry, Inorganic & Nuclear
Xiao-Ting Liu, Bin-Bin Qian, Da-Shuai Zhang, Mei Hui Yu, Ze Chang, Xian-He Bu
Summary: Metal-organic frameworks (MOFs) have rapidly developed as unique porous crystalline materials in recent decades. The diversities of components, structural designability, and tunable porosities of MOFs provide them with inherent superiorities as hosts for diverse guest species. The resulting host-guest MOFs exhibit various properties and applications that can be modulated through tuning of the host, the guest, and the host-guest interactions. Therefore, host-guest MOFs have attracted significant attention and become a hot topic in research.
COORDINATION CHEMISTRY REVIEWS
(2023)
