Article
Polymer Science
Yun Liu, Shi-chu Yang, Zhi-hao Shen, Xing-he Fan, Qi-feng Zhou
Summary: A new type of supramolecular mesogen-jacketed liquid crystalline polymer (MJLCP) was constructed by hydrogen bonding, and the effect of molecular structures on the phase behaviors of supramolecular MJLCPs was studied. It was found that the minimum ratio for the appearance of liquid crystalline phases decreases with the increase in the complexing ratio, and the size and rigidity of the hydrogen-bonding donor molecules also affect the phase behaviors.
ACTA POLYMERICA SINICA
(2023)
Article
Chemistry, Physical
Cheng-You Wu, Ashenafi Zeleke Melaku, Wei-Tsung Chuang, Chih-Chia Cheng
Summary: A newly developed electrically conductive supramolecular polymer composite can efficiently exfoliate crystalline graphite into highly disordered graphene nanosheets with well-tailored physical and conductive properties. By controlling the content of 3A-PCL, the number of graphene layers exfoliated can be adjusted, and the composite exhibits excellent electrical conductivity at a graphite loading of 23 wt%.
APPLIED SURFACE SCIENCE
(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
Chemistry, Multidisciplinary
Govind P. Maurya, Deepak Verma, Aloka Sinha, Luc Brunsveld, V Haridas
Summary: This study demonstrates the synthesis of simple and tunable hydrophobically driven chiral functional assemblies of diacetylene cored pseudopeptides. The chiral appended amino acid elements and the hydrophobic dialkyne core play important roles in the self-assembly and aggregation induced emission properties of these materials. Moreover, these supramolecular materials show promising applications in inducing chirality into non-chiral liquid crystal matrices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Eleonora Veronese, Claudia Pigliacelli, Greta Bergamaschi, Giancarlo Terraneo, Valentina Dichiarante, Pierangelo Metrangolo
Summary: By selecting Fmoc-pentafluorophenylalanine as a model efficient gelator and studying its self-assembly in the presence of benzamide, a 1:1 co-crystal was obtained, which can form transparent gels in aqueous media. This crystal engineering-based approach can be used for modulating the properties of amino acid-based hydrogels and for the time-delayed release of suitable bioactive molecules.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Fei Zeng, Lin-Li Tang, Hui Yu, Leyong Wang, Leyong Wang
Summary: This study reports the efficient and selective separation of benzene from BTX and cyclohexane using a nonporous adaptive crystal AdaOH for the first time. The results suggest that this material has the advantages of high efficiency and selectivity for benzene separation, and can solve the challenges in separating benzene from other chemicals in the chemical industry.
CHINESE CHEMICAL LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Bing Liu, Tao Yang, Xin Mu, Zhijian Mai, Hao Li, Yao Wang, Guofu Zhou
Summary: In a liquid crystal state, specific orientations and alignments of LC molecules produce outstanding anisotropy, with organic LC molecules and inorganic nanomaterials both capable of forming supramolecular LC phases. Hydrogen bonds are considered the best option for supramolecular LCs. This review summarizes the newest advances in self-assembled structure, stimulus-responsive capability and application of supramolecular hydrogen-bonded LC nanosystems, providing immense potential for advancing LC technology.
Article
Materials Science, Multidisciplinary
Florian Malotke, Matthias Spengler, Lukas Pschyklenk, Marco Saccone, Peter Kaul, Michael Giese
Summary: This article presents a supramolecular approach for photonic materials based on hydrogen-bonded cholesteric liquid crystals, offering a simple route to tailor liquid crystalline materials with specific thermal and photonic properties. Initial studies indicate broad application potential of liquid crystalline thin films in chemosensing and thermosensing, with plans to expand the scope of analytes and sensing in aqueous media.
ADVANCED PHOTONICS RESEARCH
(2022)
Article
Chemistry, Physical
Ali Akman, Emre Bukusoglu
Summary: The importance of colloidal self-assembly in scientific and technological advances is investigated. The self-assembly of colloids at fluidic interfaces that mediate elastic interactions is studied, and the dominant forces in the assembly of nanoparticles are found to be the electric double layer forces and the elastic forces caused by liquid crystal strain. The study also reveals the role of ion partitioning at the liquid crystal-water interfaces in the formation of assemblies. The findings have important implications for applications in sensors, microelectronics, and photonics.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Optics
Arturo Reyes-Romero, J. Adrian Reyes
Summary: In this study, a planar waveguide with a confined cholesteric liquid crystal was examined, and the electromagnetic equations describing the dynamics of propagating modes were solved numerically. The study revealed the propagating parameter and the ratio between magnetic and electric modes as a function of frequency, aligning with the band structure of the modes. The profiles of electromagnetic field amplitudes and the distribution of the Poynting vector were also calculated, along with a discussion on the embodiment of transverse electric and magnetic modes in the eigen modes and their propagation conditions.
OPTICS AND LASER TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Emer M. Foyle, Nicholas G. White
Summary: The use of 1,2,3-triazole and triazolium motifs to construct anion templated supramolecular structures has grown rapidly over the past decade, enabling a range of complex structures to be synthesized, especially in areas such as foldamers, polymers, and interlocked systems.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
William Gallonde, Corentin Poidevin, Felix Houard, Elsa Caytan, Vincent Dorcet, Arnaud Fihey, Kevin Bernot, Stephane Rigaut, Olivier Galangau
Summary: This article presents how the interplay between H-bonds and dispersive forces can be rebalanced to induce or prevent the generation of kinetic metastable states. The study shows that by favoring dispersive interactions and extending the aromatic content, the cooperative supramolecular polymerization of toluene bis-amide derivatives can be delayed by trapping the metastable inactive state. Proper molecular engineering can create new opportunities for kinetically metastable states in monomers undergoing cooperative supramolecular polymerizations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Matarranz, Sandra Diaz-Cabrera, Goutam Ghosh, Israel Carreira-Barral, Bartolome Soberats, Maria Garcia-Valverde, Roberto Quesada, Gustavo Fernandez
Summary: By employing a new V-shaped monomer design, we achieved anticooperatively formed oligomers with superior robustness and high luminescence. The molecular packing modes and (weak) anticooperativity were elucidated by shifting the monomer-oligomer equilibrium to the monomer side in toluene. Steric effects from an antiparallel staircase organization of the dyes restricted the growth at the stage of oligomers, while solvophobic and chain-enwrapping effects led to thermally ultrastable oligomers in methylcyclohexane (MCH). Our findings provide insights into anticooperative effects and restricted growth in self-assembly.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Yuntao Tang, Peng Cao, Wangbo Li, Mengting He, Zhifeng Dai, Yubing Xiong
Summary: The study demonstrated that the sizes of PIL microgels could be well-tuned through the feeding ratio of IL monomers to the cross-linker; Fc-anchored PIL microgels were found to be electrochemically active and could respond reversibly to the redox stimulus; An enhanced peak current could be achieved when PIL microgel-supported Fc groups were complexed with 8-CD dimer.
Article
Nanoscience & Nanotechnology
Saddam Hussain, Soo-Young Park
Summary: The unique combination of photonic helicoidal structure and rubber-like properties in cholesteric liquid-crystal elastomers results in a highly stretchable mechanochromic film capable of reflecting both right- and left-handed circular polarized light. The patterned photonic CLCE film, controlled by applied strain, can encrypt data and camouflage itself under unpolarized daylight. These elastomers have potential applications in sensors, robotics, displays, encryption, and anti-counterfeiting due to their mechanochromic capabilities.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Characterization & Testing
Navid Mostofi Sarkari, Mohsen Mohseni, Morteza Ebrahimi
Summary: The study evaluated the alterations of dynamic and static mechanical properties of silane-crosslinked polyethylene by increasing the water vapor-triggered crosslinking duration. Results indicated that 16 hours of vapor exposure was an appropriate duration for approaching maximum attainable crosslinking extent, affecting the storage modulus and crystallinity.
Article
Thermodynamics
Mahmoud Heydari, Farhad Sharif, Morteza Ebrahimi
Summary: The presence of carbonyl groups in polymers significantly affects the adhesion to metal surfaces. Molecular dynamics simulations show that oxygen atoms in vinyl acetate and maleic acid functional groups play a crucial role in this adhesion, with different positioning and performances depending on the neighboring bonds.
FLUID PHASE EQUILIBRIA
(2021)
Article
Forestry
Zahra Nowrouzi, Behbood Mohebby, Morteza Ebrahimi, Marko Petric
Summary: The study added olive leaf extract to polyacrylate coatings to investigate resistance against natural or accelerated weathering, finding that combinations of titanium dioxide, UV absorbers, and olive leaf extract can reduce discoloration of wood, as well as provide the best resistance to mold growth and cracking.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2021)
Article
Chemistry, Multidisciplinary
Yoshimitsu Sagara, Hanna Traeger, Jie Li, Yuji Okado, Stephen Schrettl, Nobuyuki Tamaoki, Christoph Weder
Summary: A new approach to cyclophane-based supramolecular mechanophores is introduced in this study. The mechanically responsive cyclic motif shows a noticeable change in emission color upon deformation, indicating a suppression of excimer-promoting interactions between luminophores. The research suggests that cyclophanes have the potential for developing various supramolecular mechanophores for detecting and visualizing weak forces in polymeric materials or living tissues.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Forestry
Zahra Nowrouzi, Behbood Mohebby, Marko Petric, Morteza Ebrahimi
Summary: The study investigated the effects of adding nanoparticles and olive leaf extract or other substances on the surface properties of heat-modified wood. The results showed that the polyacrylate coating containing titanium dioxide and olive leaf extract exhibited the best performance during natural weathering.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Chemistry, Applied
Sahar Abdollahi Baghban, Morteza Ebrahimi, Manouchehr Khorasani, Shadab Bagheri-Khoulenjani
Summary: This study presents a rational approach to design a novel VOC-free self-stratifying light-curable coating containing bio-renewable materials. By analyzing the self-stratified structures and solubility parameters, the study reveals the compatibility and incompatibility of the materials, as well as the impact of surface tension and solubility parameters on coating properties. It concludes that the level of stratification and surface hydrophobicity properties are significantly affected by the AESO-CE/GelMA weight ratio and mixture viscosity.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Applied
Sahar Abdollahi Baghban, Morteza Ebrahimi, Manoucher Khorasani, Shadab Bagheri-Khoulenjani
Summary: The study aimed to design solvent-free and light-curable coatings with various self-stratifying behavior, and evaluate the influences of several essential factors on the stratification level through SEM-EDX, AFM, ATR-FTIR spectroscopy, WCA, and conventional coating analyses.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Hassan Ghermezcheshme, Mohsen Mohseni, Morteza Ebrahimi, Hesam Makki, Elisa Martinelli, Elisa Guazzelli, Simona Braccini, Giancarlo Galli
Summary: Both experimental and molecular dynamics simulation studies show that higher cross-linking density in PU network coatings reduces the orientation of hydrophilic dangling chains towards the water interface, leading to lower hydrophilicity and higher protein adsorption.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sampreeth Thayyil, Yukinori Nishigami, Md Jahirul Islam, P. K. Hashim, Ken'ya Furuta, Kazuhiro Oiwa, Jian Yu, Min Yao, Toshiyuki Nakagaki, Nobuyuki Tamaoki
Summary: In this study, we developed azobenzene-based photoswitchable ATP antagonists to control the activity of motor proteins cytoplasmic and axonemal dyneins. Our ATP antagonists showed reversible photoswitching of cytoplasmic dynein activity and regulated axonemal dynein motor activity in a force generation model.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Shakkeeb Thazhathethil, Tatsuya Muramatsu, Nobuyuki Tamaoki, Christoph Weder, Yoshimitsu Sagara
Summary: This study reports a cyclophane-based supramolecular mechanophore that can indicate mechanical events through changes in its photophysical properties. The mechanophore exhibits orange emission in the absence of force, but mechanical deformation results in a change in emission color and intensity that correlates with the applied stress.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Characterization & Testing
Sahar Abdollahi Baghban, Morteza Ebrahimi, Manoucher Khorasani
Summary: This investigation introduces an efficient technique to acrylate epoxidized soybean oil (ESO) using viscosity control agents (VCAs). The effect of VCAs on reaction rate and viscosity was examined, and various analyses were employed to assess the acrylation reaction comprehensively. The results demonstrate that viscosity severely impairs the rate of ring-opening reaction. The study presents optimal conditions for synthesizing highly acrylated ESO (AESO) and suggests that AESO diluted by acrylated glycidyl neodecanoate can be used to prepare industrial light/UV-curable coatings with excellent performance.
Article
Chemistry, Multidisciplinary
Runze Lin, P. K. Hashim, Saugata Sahu, Ammathnadu S. Amrutha, Nusaiba Madappuram Cheruthu, Shakkeeb Thazhathethil, Kiyonori Takahashi, Takayoshi Nakamura, Takashi Kikukawa, Nobuyuki Tamaoki
Summary: A novel class of photoswitches based on a phenylazothiazole scaffold that undergoes reversible isomerization under visible-light irradiation is reported, showing different spectral characteristics and excellent stability. The elucidated design principles will aid in the development of visible-light photoswitches for photopharmacological applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Kazuya Matsuo, Sampreeth Thayyil, Mitsuyasu Kawaguchi, Hidehiko Nakagawa, Nobuyuki Tamaoki
Summary: In this study, a photoswitchable ROCK inhibitor was developed based on a phenylazothiazole scaffold, allowing manipulation of ROCK activities in vitro and in cells through reversible trans-cis isomerization induced by visible light stimuli.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Mahmoud Heydari, Farhad Sharif, Morteza Ebrahimi
Summary: The use of catechol-containing comonomers as general enhancers for polymeric materials has received attention. DMA decreases the gyration radius of the copolymer and transitions it from brittle to tough, while PMA enhances only the van der Waals component.
Article
Chemistry, Multidisciplinary
Sahar Abdollahi Baghban, Morteza Ebrahimi, Shadab Bagheri-Khoulenjani, Manoucher Khorasani
Summary: This study focused on the development of an LED-curable methacrylated gelatin (GelMA) synthesis using microwave (MW) irradiation, demonstrating improved physical properties of GelMA. By optimizing the concentrations of methacrylation reagents, reaction time, and MW power, an effective method for preparing GelMAs for bio applications was established. Characterization and evaluation of GelMAs confirmed enhanced properties of GelMA synthesized via the MW-assisted method, indicating its potential for practical use in various biomedical applications.
