Article
Chemistry, Multidisciplinary
Maksym Matviyishyn, Agata Bialonska, Bartosz Szyszko
Summary: Crownphyrins are a class of hybrid macrocycles combining structural features of porphyrin and crown ethers. They possess the ability to bind neutral and ionic guests. The presence of dynamic covalent imine linkages connecting the dipyrrin segment with the ether chain enables unusual coordination behavior of crownphyrins.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Jian-Cai Liu, Jie-Fei Wang, Qing Han, Ping Shangguan, Lu-Lu Liu, Li-Juan Chen, Jun-Wei Zhao, Carsten Streb, Yu-Fei Song
Summary: The study demonstrates how the aggregation of giant molecular metal oxide superstructures can be driven using organotin and lanthanide cations, with detailed structural analysis. Initial biomedical tests show inhibitory effects of the compound on cancer cell proliferation, indicating potential applications in cancer treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Luka Dordevic, Hiroaki Sai, Yang Yang, Nicholas A. Sather, Liam C. Palmer, Samuel I. Stupp
Summary: This study reports on the synthesis, optoelectronic and electrochemical properties, aqueous supramolecular polymerization, and conductivity of polycyclic aromatic dicarboximide amphiphiles. The introduction of heterocycles, such as thiophene, pyridine or pyrrole rings, in the chemical structure of the model perylene monoimide amphiphile led to supramolecular polymerization in water. The presence of sulfur atoms in the thiophene-containing monomer resulted in crystalline nanoribbons with significantly higher electrical conductivity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Keigo Tashiro, Takuho Saito, Hironari Arima, Natsuki Suda, Balaraman Vedhanarayanan, Shiki Yagai
Summary: Chemists have constructed sophisticated artificial nanostructured systems through self-assembly, including scissor-shaped photochromic dyads that hierarchically self-assemble into discrete nanostructures with photoresponsive properties. These nanostructures, such as azobenzene dyads, can be dissociated and reorganized through the photoisomerization of azobenzene units, enabling controllable and adjustable structures.
Article
Chemistry, Multidisciplinary
Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino
Summary: By decorating nanographenes with alkyl chains and controlling concentration, solvent polarity, temperature, and sonication, it is possible to achieve self-assembly and formation of stacked structures. Optical measurements and AFM images confirm the presence of stacked structures, while molecular mechanics calculations model the interactions within the aggregates. The nanographenes exhibit concentration-dependent morphologies, forming stacked structures at low concentrations and polymer-like network structures at higher concentrations on mica.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Sylvain Sudan, Farzaneh Fadaei-Tirani, Rosario Scopelliti, Kristina E. Ebbert, Guido H. Clever, Kay Severin
Summary: Thirteen palladium-ligand assemblies with different structures and topologies were studied for their ability to bind lithium ions. It was found that the addition of LiBF4 caused a significant structural rearrangement in one case, converting a dinuclear [Pd2L4](4+) complex into a low-symmetry [Pd4L8](8+) assembly with two binding pockets for solvated LiBF4 ion pairs. This rearrangement was only induced by Li+, indicating highly specific host-guest interactions. Structural analysis revealed that the [Pd4L8](8+) receptor had a compact structure with multiple intramolecular interactions, similar to natural and synthetic foldamers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Zongshang Li, Ke Xiao, Qingyun Wan, Rui Tang, Kam-Hung Low, Xiaodong Cui, Chi-Ming Che
Summary: The introduction of multiple kinetic aggregation states (Aggs) into the self-assembly pathway can increase the complexity and flexibility of the self-assemblies. This was achieved by using a series of chiral and achiral d(10) Au-I bis(N-heterocyclic carbene, NHC) complexes, where the achiral complex could undergo self-assembly with multiple kinetic Aggs. The chiral Au-I self-assemblies exhibited nonlinear optical response of second harmonic generation (SHG) and could function as optical waveguides with strong emission polarization, while these properties were absent in the achiral analogue.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jonathan Trouve, Paolo Zardi, Shaymaa Al-Shehimy, Thierry Roisnel, Rafael Gramage-Doria
Summary: Utilizing secondary interactions between substrates and catalysts is a promising approach to discover selective transition metal catalysts for atom-economy C-H bond functionalization. The most powerful catalysts are often discovered through trial-and-error screening, as small stereo-electronic modifications within the substrate and catalyst can lead to vastly different reactivities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Daniel Hugenbusch, Marc Lehr, Jan-Simon von Glasenapp, Anna J. McConnell, Rainer Herges
Summary: We report the photo-switching properties of two regioisomeric diazocine ligands. The self-assembly of these ligands with Co-II ions was studied, and reversible transformation between different ligand configurations and Co-II complexes was achieved through light-controlled switching.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shuguo An, Aiyou Hao, Pengyao Xing
Summary: This study reports the first example of polyhedral oligosilsesquioxane (POSS) derivatives that can self-assemble into well-defined chiral nanoassemblies. These chiral nanoassemblies exhibit active chiroptical responses and can bind guest molecules through charge-transfer interactions, offering a new design protocol for functional chiral materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Jotiram N. Malegaonkar, Mahmood D. Aljabri, Keerti Bhamidipati, Sachin D. Padghan, Mohammad Al Kobaisi, Rajesh S. Bhosale, Nagaprasad Puvvada, Sidhanath Bhosale, Sheshanath Bhosale
Summary: The supramolecular self-assembly of OPVPDA bolaamphiphile in different pH conditions was investigated. Various techniques were used to study the aggregation mode in solution and characterize the nanostructures formed. The results showed that pH had a significant effect on the self-assembly of OPVPDA, and different morphologies of OPVPDA could potentially be used in the development of biomaterials. Furthermore, OPVPDE exhibited better biocompatibility compared to OPVPDA.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mitsuaki Yamauchi, Seiya Yamamoto, Sadahiro Masuo
Summary: The study demonstrates a novel supramolecular coassembly system that forms highly ordered QD arrangement structures via self-assembly, enabling photocontrollable photoluminescence properties. The assembled system undergoes structural changes under light, but recovers its original structure and properties over time.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Karolis Norvaisa, Sophie Maguire, Claire Donohoe, John E. O'Brien, Brendan Twamley, Ligia C. Gomes-da-Silva, Mathias O. Senge
Summary: Inspired by 'picket-fence' systems, this study utilized strain to introduce intramolecular tension, leading to selective compound atropisomer conversion and the formation of distinctive supramolecular nanostructures.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Lukasz Baran, Konrad Dyk, Daniel Michael Kaminski, Marek Stankevic, Wojciech Rzysko, Dariusz Tarasewicz, Tomasz Zientarski
Summary: In this study, the formation of self-assembled structures of tetraphenyl derivatives with different substitutions was investigated using classical molecular dynamics and quantum calculations. The results indicate that certain functional groups have a significant impact on the self-assembly process, and these molecules can form various ordered phases.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Karolis Norvaisa, John E. O'Brien, Daire J. Gibbons, Mathias O. Senge
Summary: This study sheds light on the fundamental issue of atropisomerism in porphyrins, using benzenesulfonic acid for host-guest interactions and NMR spectroscopy to characterize all four rotamers. The research suggests that charge-assisted complexation is key to unraveling the atropisomeric enigma in porphyrinoids. Additionally, X-ray structural analysis was used to investigate weak host-guest interactions in nonplanar porphyrins.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
De-Ao Xu, Qing-Yang Zhou, Xianyin Dai, Xin-Kun Ma, Ying-Ming Zhang, Xiufang Xu, Yu Liu
Summary: A phosphorescent supramolecular foldamer has been successfully constructed through the 1:1 host-guest complexation with cucurbit[8]uril and 1,2-diaminocyclohexane-bridged 4-(4-bromophenyl)-pyridinium salt. The foldamer exhibits green phosphorescence in aqueous solution and shows rapid and sensitive responsiveness to different antibiotics.
CHINESE CHEMICAL LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Jie Yu, Hui Wang, Xianyin Dai, Yong Chen, Yu Liu
Summary: A multivalent supramolecular aggregate with near-infrared fluorescence emission was developed and successfully applied for lysosome targeted imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Conghui Wang, Yao-Hua Liu, Yu Liu
Summary: In this work, the authors report a macrocycle-confined pure organic room-temperature phosphorescence (RTP) supramolecular assembly, which emits efficient near-infrared (NIR) phosphorescence. The assembly is constructed by a diarylethene phenylpyridinium derivative and cucurbit[8]uril, and its phosphorescence can be reversibly regulated by light irradiation. The supramolecular assembly shows potential applications in high-resolution bioimaging and luminescent materials.
Article
Chemistry, Multidisciplinary
C. Wang, Y. Liu
Summary: In this work, an all visible-light-regulated supramolecular photo-switch was constructed based on a pyridinium-modified diarylethene derivative and cucurbit[8]uril. The switch exhibited efficient photocyclization and strong thermally activated delayed fluorescence, which could be regulated by visible light. The research has potential applications in information encryption.
MATERIALS TODAY CHEMISTRY
(2022)
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
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, 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
Chemistry, Multidisciplinary
Jie Niu, Yao-Hua Liu, Wenshi Xu, Wen-Wen Xu, Ya-Hui Song, Jie Yu, Ying-Ming Zhang, Yu Liu
Summary: A ternary supramolecular assembly, consisting of a morpholine-modified permethyl beta-cyclodextrin, sulfonated porphyrin, and folic acid-modified chitosan, was constructed with dual-targeting capability towards lysosomes and cancer cells. The obtained assembly exhibited enhanced photodynamic effect and achieved precise imaging in cancer cells, surpassing the performance of free porphyrin.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
