Article
Chemistry, Multidisciplinary
Shaomeng Guo, Mengqi Li, Honglong Hu, Ting Xu, Hancheng Xi, Wei-Hong Zhu
Summary: In this study, a series of dynamic chiral photoswitches based on supramolecular metallacages were successfully prepared, achieving a high photoconversion yield of 91.3% in nanosized cavities. The chiral inequality phenomenon was observed in the metallacages, and a dynamic chiral system was established at the supramolecular level, featuring chiral transfer, amplification, induction, and manipulation. This study provides an intriguing idea to simplify and understand chiral science.
Article
Chemistry, Physical
Elarbi Chatir, Amina Khettabi, Frederic Lafolet, Damien Jouvenot, Guy Royal, Eric Saint-Aman, Saioa Cobo
Summary: This study demonstrates the construction of multiswitchable molecular logic gates using a rational chemical design, with the individual building units of the polymer being switched using light or electrical stimulus. The functional material exhibits five accessible and distinguishable stable states, which can be utilized for various logic gates and arithmetic operations.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Manisha Karmakar, Adwitiya Pal, Bijan Mondal, Nayarassery N. Adarsh, Arunabha Thakur
Summary: The C-2-symmetric photochromic molecule 3, with dithienylethene (DTE) and ferrocene units connected by an alkyne bridge, binds with Hg2+ where the open state (3o) binds more strongly than the closed state (3c). The metal binding does not disrupt the inherent photoisomerization properties of the DTE core, and the photoswitchability persists even in the metal-coordinated form of 3, albeit at a slower rate.
INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
P. Bolle, C. Menet, M. Puget, H. Serier-Brault, S. Katao, V Guerchais, F. Boucher, T. Kawai, J. Boixel, R. Dessapt
Summary: The first photochromic supramolecular assembly of a DTE cation with a POM is described, with modifications on the photoswitching mechanism leading to improved cycloreversion rate. The crystal structure after UV exposure shows a remarkable photocyclization yield.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Biochemistry & Molecular Biology
Yixuan Li, Delu Zhao, Ziyao Wang, Yiling Meng, Bohui Liu, Lan Li, Rui Liu, Sichen Dong, Fulan Wei
Summary: Bone augmentation is in high demand in oral clinical treatment, but current strategies can cause patient suffering and psychological trauma. This study presents a new injectable hydrogel for microinvasive bone augmentation, which showed excellent physical properties and biocompatibility. In vitro and in vivo tests demonstrated the hydrogel's ability to enhance osteogenic differentiation and bone augmentation. These findings highlight the potential clinical application of the nanocomposite hydrogel in microinvasive bone augmentation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Yuhui Xie, Xue Lv, Xinyi Sui, Song Tian, Li'an Jiang, Shulin Sun
Summary: Physicochemical double cross-linking nanocomposite hydrogels were prepared in this study. The addition of ionic liquid prevented Laponite from forming a high thixotropic gel in water. The dispersed Laponite nanosheets acted as dynamic physical crosslinking sites and formed a strong and tough hydrogel network structure when combined with the chemical crosslinking center of MBA in the polymer chain segments. The PAM/Laponite/IL nanocomposite hydrogel showed excellent tensile strength, high tensile strain, and remarkable toughness, making it a potential load-bearing material.
Review
Chemistry, Medicinal
Samuel T. Stealey, Akhilesh K. Gaharwar, Silviya Petrova Zustiak
Summary: Hydrogels are commonly used for therapeutic delivery, but their clinical utility is limited by unfavorable pharmacokinetic properties. Incorporating nanomaterials, such as nanosilicate particles, within hydrogels can help sustain release kinetics. This review focuses on Laponite, a nanosilicate with beneficial characteristics, and explores the benefits and examples of using Laponite-hydrogel composites for prolonging the release of small and large molecules.
Article
Chemistry, Physical
Michelangelo Bovoloni, Juraj Filo, Ivica Sigmundova, Peter Magdolen, Simon Budzak, Eliska Prochazkova, Matteo Tommasini, Marek Cigan, Andrea Bianco
Summary: In this study, we investigated the structure-property relationships in a new series of benzothiazole based unsymmetrical hexafluorocyclopentene dithienylethenes (DTEs) and compared the results with known facts for symmetric diarylethenes (DAEs). We found high photocyclization efficiency and thermal cycloreversion rate correlated with the molecular structure. Additionally, significant changes in vibrational spectra during photoswitching cycles were observed through detailed analysis.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Agriculture, Multidisciplinary
Qi Xu, Chao Zhang, Zhiping Xu, Long Wang, Zewen Liu, Zhong Li, Xusheng Shao
Summary: Photopharmacology using azobenzene or dithienylethene has revolutionized receptor function studies, achieving higher spatiotemporal resolution. However, there are no photopharmacological tools available for the invertebrate nicotinic acetylcholine receptor (nAChR). In this study, a photochromic ligand called dithienylethene-imidacloprid (DitIMI) was developed by incorporating a dithienylethene photoswitch into the nAChR agonist imidacloprid. DitIMI displayed excellent photochromism and fluorescence switching in aqueous solution upon UV/vis light irradiation. The photoswitchable DitIMI exhibited a significant difference in insecticidal activity between its open and closed forms, opening new avenues in understanding inhibitory circuits in intact animals.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hao-Zhao Wei, Yin Wei, Min Shi
Summary: In this paper, dithienylethene-based chiral bisoxazoline ligands with bidirectional photoswitching capabilities under visible light irradiation were successfully synthesized, and a strategy for adjusting the conjugation system length in sensitizer groups was proposed. The detailed experimental procedures and the characterization data can be found in the main text and the Supporting Information. Despite their moderate photoswitching rates, these ligands offer a promising approach towards developing fully visible light-responsive chiral catalysts.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Jee Na Lee, Su Yeon Lee, Won Ho Park
Summary: A novel polymer hydrogel mimicking mussel foot proteins was designed in this study, with improved adhesive strength in wet conditions by introducing catechol moiety and simply synthesized through pH control. Additionally, the addition of laponite led to enhanced mechanical and self-healing properties of the hydrogel. PAA-based hydrogels have great potential for diverse applications beyond commercial adhesives.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Chen Yu, Xinlai Dou, Linghan Meng, Xiao Feng, Chengcheng Gao, Fenglian Chen, Xiaozhi Tang
Summary: The Laponite (R)/cross-linked starch/polyvinyl alcohol (PVA) hydrogels developed in this study have great potential for applications in bone tissue engineering. The mechanical strength and degradation rate of the hydrogels can be adjusted by altering the starch/PVA ratio and the amount of Laponite (R).
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Lukas Selzer, Stefan Odenbach
Summary: By using computed tomography for structure analysis, we investigate the magnetorheological effect of nanocomposite hydrogels and propose a mechanism based on the translational and rotational movement of magnetic particles. The theoretical law derived from this mechanism shows the same scaling behavior as the empirical law found in previous studies.
Article
Chemistry, Physical
Chuang Li, Masoud Kazem-Rostami, James S. W. Seale, Shuailong Zhou, Samuel I. Stupp
Summary: This study designs a polymerizable bisazobenzene-based molecular photoswitch that can drive large-scale volume change and deformation when incorporated into polymer networks. These photoswitchable hydrogels mimic biological motions such as muscular contraction and light-driven bending, and can be used to tune macroscopic properties. This work provides a platform to investigate the relationship between molecular motion and macroscopic actuation.
CHEMISTRY OF MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Bernhard Schrenk, Margareta V. Stephanie
Summary: The introduction of avalanche photodetectors in optical interconnects can extend the unallocated optical budget and provide opportunities for novel datacenter network architectures. By harvesting the dropped power during optical modulation, a specialized high-voltage bias circuit for photodiodes can be avoided. Instead, a photovoltaic power conversion circuit is used to convert the collected light into a high-voltage bias shared among all data lanes of the optical interconnect.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Lingling Miao, Xinju Zhu, Guoxing Liu, Xin Han, Wenping Xie, Shuai Lu, Long Zhang, Kai Wang, Linlin Shi, Siyu Lu, Xinqi Hao, Maoping Song
Summary: Three discrete tetrahedral metallo-supramolecular cages were constructed using truxene-pended base ligands. The resulting supramolecular cages exhibited significant aggregation-induced emission and solvatochromic fluorescent behavior, as well as a porous honeycomb-like state during aggregation. The anti-counterfeiting performance and emission behaviors of the cages under external hydrostatic pressure were investigated.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Zhixue Liu, Mengdi Tian, Heng Zhang, Yu Liu
Summary: In this study, coumarin was modified on ethylenediamine beta-cyclodextrin, which improved its binding affinity to glutathione by a reversible Michael addition, showing 113 times higher affinity than coumarin itself. This modification enabled dynamic real-time sensing of glutathione in living HeLa cells.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Jie Yu, Hui Wang, Xian-Yin Dai, Jie Niu, Yu Liu
Summary: An injectable polysaccharide supramolecular hydrogel was synthesized by cross-linking opened d-glucopyranosyl beta-cyclodextrin with aldehyde groups (ACD) with biomacromolecule chitosan (CS). It showed clustering-triggered emission with high quantum yield (32.25%) and could co-assemble with triphenylamine derivative (TPA) and encapsulate Cyanine 5 (Cy5) or Nile blue (NiB) for supramolecular cascade energy transfer. This hydrogel has potential applications in cell imaging.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Lijie Liu, Jinjin Wang, Xingxiao Wang, Haoran Wang, Mengzhen Li, Tongyuan Wu, Guangqin Gao, Xin Zheng, Guoxing Liu, Liangxin Fan, Wenbo Shen, Guangxin Ru, Zheng Zhao, Ben Zhong Tang
Summary: A new class of near-infrared fluorescent organoboron AIEgens were developed for latent fingerprint imaging, offering real-time and high-resolution imaging at levels 1-3 of fingerprints using a spraying method. The fingerprint imaging mechanism of these AIEgens was also explored. Furthermore, their excellent level 3 structural imaging capabilities make them suitable for analyzing incomplete fingerprints and identifying individuals in different scenarios.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Wen-Wen Xing, Hui-Juan Wang, Zhixue Liu, Zhen-Hai Yu, Heng-Yi Zhang, Yu Liu
Summary: Cascade energy capturers based on supramolecular assembly have attracted great research interest in luminescent materials. A cucurbit[8]uril (CB[8])-encapsulated coumarin-bridged phenylpyridinium salt (G) was reported to form a biaxial polypseudorotaxane (G subset of CB[8]), which not only induced the phosphorescence of the guest G, but also activated the photodimerization of coumarin functional group in the CB[8] cavity (G-dimer subset of CB[8]), resulting in enhanced phosphorescence emission. The system showed potential for targeted imaging in HeLa cells.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wen-Wen Xu, Yue-Xiu Qin, Jie Niu, Wenshi Xu, Yong Chen, Heng-Yi Zhang, Yu Liu
Summary: This study reports the construction of dual-rotor luminogens through supramolecular secondary reassembly, resulting in bright fluorescence emission. The reassembly not only transforms the morphology, but also activates the fluorescence of the dual-rotor molecule with a large Stokes shift. The system shows potential applications in information security and targeted cancer cell imaging.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yonghui Sun, Linnan Jiang, Lijuan Liu, Yong Chen, Wen-Wen Xu, Jie Niu, Yuexiu Qin, Xiufang Xu, Yu Liu
Summary: Two kinds of amorphous solid-state supramolecular systems with purely organic room temperature phosphorescence (RTP) were reported, which were activated by calix[3]phenothiazine (C[3]Pz) and 1,2-/1,3-dicyanobenzene (1,2-/1,3-DCB). The RTP of these supramolecular systems was entirely from the interaction between 1,2-/1,3-DCB and C[3]Pz, forming dense supramolecular complexes, leading to two different phosphorescence emissions. The use of 1,2-DCB and 1,3-DCB as molecular rivets fixed the C[3]Pz, inhibiting molecular vibration and reducing nonradiative relaxation, resulting in effective RTP emission with high quantum yields.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Rong Zhang, Yong Chen, Lei Chen, Yi Zhang, Yu Liu
Summary: Photoacid sulfonato-merocyanine (MEH) is added to a mixed solution of amphiphilic calix[4]arene (SC4A8) and tetra-(4-pyridylphenyl) ethylene (TPE-4Py), resulting in in situ supramolecular self-assembly or disassembly and regulation of two types of fluorescence emission. Under 420 nm irradiation, MEH releases protons and becomes a ring-closed isomer spiropyran (SP), which protonates TPE-4Py and assembles with SC4A8 to form a supramolecular assembly with yellow fluorescence at 540 nm through electrostatic interactions. In the dark, SP changes to ring-opened MEH, leading to a spontaneous disassembly accompanied by fluorescence emission at 495 nm. A photo-activated reversible in situ supramolecular system is successfully obtained. Furthermore, Rhodamine B (RhB) is doped as an energy acceptor in the ternary supramolecular assembly, allowing efficient energy transfer through light irradiation.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yi Zhang, Yong Chen, Hui Zhang, Lei Chen, Qiyu Bo, Yu Liu
Summary: A solid slide-ring supramolecular elastomer with excellent tensile property, toughness, and fatigue resistance has been constructed. It exhibits reversible mechano-induced fluorescence changes and highly reversible mechano-induced regulation of energy transfer. This bifunctional mechanochromic slide-ring supramolecular elastomer has the intrinsic superiority of slide-ring into fatigue resistant mechanoresponsive strain sensing materials.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Yu-Li Dang, Li-Xia Xie, Na-Na Fei, Ru Qiao, Zhan-Qi Cao, Li-Jie Liu, Guo-Xing Liu, Xin Zheng, Yun-Lai Ren, Xia Sheng, Sheng-Qiang Guo, Cao-Yuan Niu
Summary: Two new non-sandwich-type ytterbium(III)-porphyrin coordination compounds were synthesized and characterized. The sensitization efficiency of Yb(III) NIR emission by porphyrin ligands via non-sandwich-type linkage was investigated and found to be dependent on the distance between the sensitizer and Yb(III) NIR emitter.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
Guoxing Liu, Changming Tian, Guorong Li, Haifan Zhang, Xinhui Fan, Lijie Liu, Zhanqi Cao, Song Jiang, Xin Zheng, Caoyuan Niu, Xiufang Xu
Summary: In this study, a photoactive molecule switch, DAE-BTS, was designed by cleverly combining two photoactive groups, diarylethene (DAE) and benzothiazole thiophene styrene (T-BTS), using a & pi;-extended conjugation strategy. T-BTS was identified as a new photo/thermo-controlled molecular switch, while the addition of T-BTS to the DAE skeleton did not affect the photochromism of DAE. The resulting DAE-BTS not only exhibited photochromic properties but also maintained aggregation-induced emission enhancement. Additionally, a solid-state composite film of DAE-BTS/PMMA-PP was innovatively formed by integrating poly(methyl methacrylate) (PMMA) and polypropylene (PP), which showed stronger solid-state fluorescence compared to DAE-BTS in PMMA or PP film alone. The formation of the film also enabled visible light-induced cyclization reaction of DAE and reversible control of the solid-state fluorescence switch, making it promising for light-recording and anticounterfeiting applications.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Wei-Lei Zhou, Xian-Yin Dai, Wenjing Lin, Yong Chen, Yu Liu
Summary: A photo-responsive lanthanide supramolecular switch was constructed by combining a synthetic 2,6-pyridine dicarboxylic acid-modified pillar[5]arene with lanthanide ions and a dicationic diarylethene derivative. The supramolecular complex exhibited lanthanide emission and further encapsulated the diarylethene derivative to form a network supramolecular polymer, resulting in increased emission intensity and lifetime. The switch demonstrated full-color luminescence and could be reversibly tuned by UV/vis light irradiation. It also showed potential for anti-counterfeiting and on-demand color tuning applications.
Article
Chemistry, Physical
Hong-Mei Yu, Xiao-Yong Yu, Yong Chen, Yu Liu
Summary: A fullerene-polysaccharide supramolecular hydrogel with good antioxidant and antiglycation properties was constructed by co-assembly of fullerene@hydroxypropyl-b-cyclodextrin, chitosan, and bentonite, showing promising cosmetics applications.
Article
Polymer Science
Zhanqi Cao, Fan Yang, Dongpu Wu, Lulu Wu, Lijie Liu, Guoxing Liu, Xiaochuan Li, Xin Zheng, Xianfu Zheng, Dahui Qu
Summary: A novel pillar[5]arene-bridged monomer with TPE and nitrile group was synthesized and it formed supramolecular aggregates based on the host-guest interaction. The supramolecular aggregates exhibited significant aggregation-induced emission due to the restricted intramolecular rotation of the TPE core.
Article
Chemistry, Organic
Guoxing Liu, Changming Tian, Xinhui Fan, Yuli Dang, Jieqiong Qin, Lijie Liu, Zhanqi Cao, Song Jiang
Summary: In this study, a dual-stimulus-driven stiff-stilbene-based dynamic [3]rotaxane was successfully developed and demonstrated reversible shuttling motions and bidirectional rotations upon encountering acid-base and distinct light stimulations. The rotaxane is capable of two modes of regular motions without interference and exhibits controllable and reversible photoisomerization performances.
