Article
Neurosciences
Manuela de Bellis, Antonio Cibelli, Maria Grazia Mola, Francesco Pisani, Barbara Barile, Maria Mastrodonato, Shervin Banitalebi, Mahmood Amiry-Mogghaddam, Pasqua Abbrescia, Antonio Frigeri, Maria Svelto, Grazia Paola Nicchia
Summary: This study demonstrates the crucial role of AQP4 assemblies in maintaining normal AQP4 expression levels in the brain, with most AQP4 organized into OAPs under physiological conditions. Astrocytes cannot use AQP4 tetramers as an alternative to OAPs without affecting AQP4 expression levels.
Article
Chemistry, Inorganic & Nuclear
Reike Clauss, Evamarie Hey-Hawkins
Summary: The reaction of heteroditopic ligand 1 with [Pd(CH3CN)(4)](OTf)(2) in different metal-to-ligand ratios produced homobimetallic, metallomacrocyclic, and monometallic complexes. The ligand's different hard and soft binding sites showed selective coordination with Pd-II and Zn-II.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Aysegul Budak, Abdullah Aydogan
Summary: A calix[4]pyrrole containing a ureidopyrimidinone unit was synthesized from its alcohol-functionalized congener, and used for the first time to obtain a thermo- and chemical-responsive linear supramolecular polymer via orthogonal self-assembly involving quadruple hydrogen bonding and anion recognition.
CHEMICAL COMMUNICATIONS
(2021)
Review
Biochemistry & Molecular Biology
Yoichiro Abe, Masato Yasui
Summary: The discovery of NMO-IgG in patients with neuromyelitis optica spectrum disorder (NMOSD) has highlighted the importance of the water channel aquaporin-4 (AQP4) in autoimmune diseases of the central nervous system. The unique structure of AQP4 and its subcellular localization may play a crucial role in the pathogenesis of NMOSD, in addition to the complement-dependent cytotoxic effects of NMO-IgG. Studies have also shown complement-independent cytotoxic effects of NMO-IgG, potentially involving antibody-induced endocytosis of AQP4.
Article
Chemistry, Multidisciplinary
Yusuke Shimizu, Kohei Sato, Kazushi Kinbara
Summary: Inspired by natural calcium-induced reversible assembly and disassembly of membrane proteins, a phosphorylated amphiphile (PA) containing an oligo(phenylene-ethynylene) unit as a hydrophobic unit and a phosphate ester group as a hydrophilic calcium-binding unit was developed. The study demonstrated that PA can reversibly assemble and disassemble within lipid bilayer membranes in response to the sequential addition of calcium chloride and ethylene-diaminetetraacetic acid as a synthetic molecule for the first time.
CHEMICAL COMMUNICATIONS
(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
Gang Lu, Shuang Lu, Jiawei Sun, Min Wei Boey, Wentao Shang, Jun Wu, Alicia Kyoungjin An
Summary: This study reports the successful fabrication of ultrathin crystalline polymer membranes with nano-confined supramolecular assembly. These membranes exhibit excellent mechanical robustness and ion sieving performance, making them promising for nanofiltration applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wei Liu, Yuan Li, Linlin Xu, Gang Wang, Xiaofei Ma, Yong Wang
Summary: Inspired by the structures of glomerular filtration barrier (GFB) and nacre, researchers have developed a high-performance biomimic membrane for efficient water purification. This membrane exhibits excellent water transport capability and anti-swelling stability. With low-cost materials and a versatile modification method, this economic strategy has the potential to achieve large-scale membrane fabrication and find widespread applications.
Article
Nanoscience & Nanotechnology
Jung-Hsuan Hsu, Nien-Ting Tang, Ting-Fang Hsu, Shin-Hua Lin, Cai-Yin Fang, Yun-Wen Huang, Hongta Yang
Summary: Hemimyzon formosanus uses crescent-shaped abdominal suckers to adhere to irregular surfaces. Inspired by this, researchers have developed a method to pattern shape-memory polymer-based nanostructure arrays using self-assembled colloidal crystals. By manipulating the configuration of nanosuckers, the adhesion performance can be switched on different surfaces.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Chiara F. M. Mirabella, Gemma Aragay, Pablo Ballester
Summary: We report the self-assembly of shape-persistent [1 + 1] tetra-imine cages 1 based on two different tetra-alpha aryl-extended calix[4]pyrrole scaffolds in chlorinated solvents and in a 9 : 1 CDCl3 : CD3CN solvent mixture. The use of a bis-N-oxide 4 as template has a positive effect on the reaction yield. The binding properties of the self-assembled tetra-imine cages 1 with pyridine N-oxide derivatives were investigated using H-1 NMR spectroscopy.
Article
Chemistry, Multidisciplinary
Danilo Marchetti, Francesca Portone, Francesco Mezzadri, Enrico Dalcanale, Mauro Gemmi, Alessandro Pedrini, Chiara Massera
Summary: The dynamic behavior of supramolecular organic frameworks (SOFs) based on TPM organic tecton has been studied. The SOF undergoes a reversible single-crystal-to-single-crystal transformation when exposed to organic solvents, resulting in changes in structure and fluorescence. The selectivity of the transformation is dictated by the fitting of the guest in the expanded SOF.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Polymer Science
Luyao Xu, Yingyi Hu, Dongbing Zhao, Wangqing Zhang, Hong Wang
Summary: This study proposes a strategy to directly fuse the functional attributes of small additives into supramolecular polyelectrolyte nanoporous membranes under ambient conditions. The pore size distributions and mechanical properties of the membranes are controlled by tuning the hydrogen bonding interactions between the additives and the polyelectrolyte. The study demonstrates that small dye additives/homo-poly(ionic liquid) solutions can be used as versatile inks to create colorful light emitting films with robust underwater adhesion strength, excellent stretchability, and flexibility on various surfaces.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Peiang Li, Junjie Yang, Yulun He, Mingrui He, Jun Ma
Summary: This study proposes the use of supramolecular assembly interactions, specifically involving beta-cyclodextrin, to manipulate the surface segregation behavior of Pluronic F118 in ultrafiltration membranes. The supramolecular assembly effectively suppresses undersegregation and oversegregation during membrane preparation and enhances stability. The use of beta-cyclodextrin as a nodal role improves hydrogen bonding and hydrophobic interactions, resulting in long-term stability of the segregation modifiers. This advancement has potential implications for creating highly efficient and durable ultrafiltration membranes in chemical engineering.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yuan Meng, Yu Liu, Ziqiu Wan, Yunfei Huan, Qiyang Guo, Dongli Fan, Xi Zhou, Jie Liu, Yufeng Cao, Xiaoyan Cao, Zhenggui Gu, Tao Qian, Chenglin Yan
Summary: Phase change materials have great potential and development prospects. Designing smart PCM with self-healing abilities and reversible switching between rigidity and flexibility remains challenging. In this study, a strategy utilizing dynamic carboxylate/zinc ions interactions was developed to achieve this objective. The resulting phase change supramolecular showed rapid self-healing behavior and reversible switching between rigidity and flexibility.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Shushan Yuan, Gang Zhang, Junyong Zhu, Jie Yang, Suilin Liu, Bart Van der Bruggen
Summary: The study synthesized membranes based on entirely resorcin[4]arene (RA) macrocycles, with the membrane from RA-3R at a concentration of 0.73 wt% showing the optimal nanofiltration (NF) performance, achieving a water permeability of 26.2 L m(-2) h(-1) bar(-1) and maintaining 95.6% rejection of Na2SO4.
