Article
Chemistry, Multidisciplinary
Pritam Ghosh, Natalia Fridman, Galia Maayan
Summary: The construction of synthetic protein mimics is a central goal in chemistry, achieved by changing non-coordinating side-chains to regulate different structures and achieve various supramolecular architectures.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Aoli Wu, Yongxian Guo, Xianbao Li, Huimin Xue, Jinbo Fei, Junbai Li
Summary: This study successfully obtained supramolecular gels with a transition from amyloid-like beta-sheet to different supramolecular helices through co-assembly of a specific core recognition motif, revealing the vital roles of the microenvironment of chiral carbon and different stacking modes of additives in the chiral transfer or amplification of L-FmocFF. The dynamic process of helix formation was captured, providing a convenient co-assembly method to explore the structure basis of A beta fibrils with controlled chirality.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Christophe Kahlfuss, Shagor Chowdhury, Aderito Fins Carreira, Raymond Gruber, Elise Dumont, Denis Frath, Floris Chevallier, Eric-Saint-Aman, Christophe Bucher
Summary: The metal-induced self-assembly strategy promotes the pi-dimerization of viologen-based radicals, forming discrete box-shaped 2:2 macrocycles or coordination polymers. Changing the redox state of the tectons leads to reversible inflation/deflation of the macrocyclic assemblies, with viologen-centered electron transfer triggering dissociation of coordination polymers. The driving force of the disassembling process is the formation of stabilized 2:2 assemblies through pi-dimerization of viologen cation radicals.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Environmental
Shengda Liu, Shanpeng Qiao, Tengfei Yan, Xiumei Li, Shuangjiang Yu, Hongcheng Sun, Jiayun Xu, Junqiu Liu
Summary: A biomimetic nanozyme with peroxidase-like activity was constructed using a supramolecular co-assembled strategy, showing high activity and stability. It was applied in glucose detection with potential for rapid diagnosis of diabetes by loading extremely low levels of nanozyme on test paper.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lucia Lopez-Gandul, Adrian Moron-Blanco, Fatima Garcia, L. Luis Sanchez
Summary: The study reports the synthesis and self-assembling features investigation of a series of triangular-shaped tricarboxamides. The compounds with picoline or nicotine units can form supramolecular copolymers with the previously reported oligo(phenylene ethynylene)tricarboxamides (OPE-TA). Different compounds exhibit different abilities to form supramolecular polymers, and the combination of certain compounds generates chiral supramolecular copolymers with blocky microstructure.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jess L. Algar, James E. Phillips, Jack D. Evans, Dan Preston
Summary: This article reports flexible [Pd(L)2]2+ complexes that show self-recognition driven by π-π interactions between electron-rich aromatic arms and the cationic regions they are tethered to. This self-recognition hampers the association of these molecules with aromatic molecular targets in solution. In one case, the complex can be reversibly converted to an 'open' [Pd2(L)2]4+ macrocycle through introduction of more metal ion.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Multidisciplinary Sciences
Pawel W. Majewski, Aaron Michelson, Marco A. L. Cordeiro, Cheng Tian, Chunli Ma, Kim Kisslinger, Ye Tian, Wenyan Liu, Eric A. Stach, Kevin G. Yager, Oleg Gang
Summary: The rapid development of DNA-based assembly methods allows for the creation of organized nanomaterials with versatile capabilities. By creating inorganic, silica-based replicas of 3D periodic DNA-NP structures, the formed nanomaterials demonstrate excellent resiliency and stability under extreme conditions. This approach opens up new possibilities for the use of DNA assembly strategies in creating organized nanomaterials for a broad range of operational conditions.
Article
Materials Science, Multidisciplinary
Zhao Pan, Ze-Yu Wang, Mo-Han Wang, Lu Yang, Shu-Hong Yu
Summary: Researchers reported a novel adhesive aero-hydrogel hybrid conductor (AAHC) with stretchable, adhesive, and anti-bacterial properties, achieved through in-situ formation of a hydrogel network in the aerogel-silver nanowires assembly.
SCIENCE CHINA-MATERIALS
(2021)
Article
Polymer Science
Cheng-Wei Huang, Ya-Ying Chang, Chih-Chia Cheng, Meng-Ting Hung, Mohamed Gamal Mohamed
Summary: This study developed a supramolecular polymer PNI-U-DPy to encapsulate the antioxidant C-60, creating a stable and temperature responsive complex PNI-C-60 with high loading capacity. The complex demonstrated controlled release of C-60 with hydroxyl radicals scavenging abilities at low dosages, making it a valuable alternative for radical scavengers in drug delivery systems.
Article
Chemistry, Multidisciplinary
Emma Vargo, Katherine M. Evans, Qingjun Wang, Andrew Sattler, Yiwen Qian, Jie Yao, Ting Xu
Summary: The study demonstrates a straightforward approach to generate ring-shaped nanoparticle assemblies in thin films of supramolecular nanocomposites, simplifying and streamlining nanofabrication processes. Directed self-assembly is used to guide the formation of concentric rings with high-quality orbital angular momentum, introducing interparticle coupling as a new design axis. The detailed analysis confirms the flexibility of the supramolecular system in self-regulating the spatial distribution of components, providing guidelines for developing self-regulating DSA as an alternative to incommensurability-driven methods.
ADVANCED MATERIALS
(2021)
Article
Polymer Science
Rui Hu, Chunhua Cai, Jiaping Lin, Liang Gao
Summary: The study reveals that mixtures of polypeptide homopolymers and block copolymers can form superhelices with tunable chirality. The chirality of the superhelices can be regulated by the chiralities of the homopolymers and copolymers. A mechanism explaining the origin of superhelical chirality is proposed based on experimental observations. This work deepens the understanding of superhelix chirality and provides guidance for the construction of hierarchical nanostructures with controllable chirality.
Article
Chemistry, Multidisciplinary
Ming Liu, Ran Cen, Jisen Li, Qing Li, Zhu Tao, Xin Xiao, Lyle Isaacs
Summary: In this study, solid double-cavity host ns-Q[10] was found to function as an efficient adsorption separator for the removal of pyridine from benzene and toluene, achieving high purity of the separated compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Emilie Moulin, Christian C. Carmona-Vargas, Nicolas Giuseppone
Summary: Daisy chain architectures, with their unique structure and dynamics, have significant influence and potential in the research of artificial molecular machines and stimuli-responsive materials.
CHEMICAL SOCIETY REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Emilie Moulin, Christian C. Carmona-Vargas, Nicolas Giuseppone
Summary: Daisy chain architectures, a family of supramolecular and mechanically interlocked molecules, have significantly influenced the research on artificial molecular machines and have potential applications in various areas.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Jiahui Jin, Jianqin Wan, Xiaoxiao Hu, Tao Fang, Zhijian Ye, Hangxiang Wang
Summary: The study demonstrates that conjugating hydrophobic drugs with oligo(ethylene glycol)-oligolactide leads to the formation of injectable nanoparticles, which release chemically unmodified drugs inside cancer cells, effectively inducing tumor regression with a higher safety margin in animals. This highlights the potential of using short amphiphilic oligomers to convert toxic drugs into self-deliverable and safe nanotherapies.
CHEMICAL COMMUNICATIONS
(2021)
Article
Polymer Science
Hazuki Maeda, Ryo Inoue, Akinori Saeki, Yasuhiro Morisaki
Summary: The synthesis of polymers with stacked three-ring para-phenylene-ethynylene pi-electron systems through Sonogashira-Hagihara cross-coupling was successful. The optically active pseudo-meta-linked dimers and polymers emitted intense circularly polarized luminescence (CPL) with relatively high anisotropy factors.
Article
Polymer Science
Shaoxian Li, Ryosuke Nishikubo, Tatsuho Wada, Tomokazu Umeyama, Hiroshi Imahori, Akinori Saeki
Summary: This study evaluates the charge carrier dynamics in different structured organic solar cells and reveals the factors limiting the power conversion efficiency (PCE). The results show that the OSC with the highest PCE has low electron and hole mobilities, while the one with higher electron and hole mobilities has a lower PCE. Additionally, the OSC with the highest PCE exhibits the smallest bimolecular recombination coefficient.
Article
Chemistry, Multidisciplinary
Xiao Zheng, Kazuhiko Nagura, Tomohisa Takaya, Kenjiro Hashi, Takashi Nakanishi
Summary: The development of alkyl-pi functional molecular liquids (FMLs) with desired liquid and optoelectronic properties is challenging. In this study, different alkyl chains were attached to different positions of alkyl-distyrylbenzene (DSB) to investigate their effects on the properties of liquid. It was found that the 2,5-C10C14 substituent pattern showed superior properties in terms of viscosity, optical properties, thermal stability, and photo-stability.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Lulu Jia, Fang Xian, Yoshiyuki Sugahara, Nobuyuki Sakai, Emmanuel Picheau, Hairong Xue, Yusuke Yamauchi, Takayoshi Sasaki, Renzhi Ma
Summary: Ultrathin nanosheets of Ni-, Co-, and Fe-based (oxy)hydroxides show promising catalytic activity for OER in water electrolysis under alkaline conditions. Fe may play a crucial role in the catalytic process of Ni- or Co-based catalysts, but effective methods for preparing and studying pure Fe hydroxide nanosheets are lacking.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Physical
Lijin Huang, Juan Yang, Yingji Zhao, Hirokatsu Miyata, Minsu Han, Qin Shuai, Yusuke Yamauchi
Summary: To address the insolubility and poor processability of powder covalent organic frameworks (COFs), monolithic COFs with hierarchical structures have been constructed as a feasible and effective solution. This review provides a comprehensive summary of the recent advances in the synthesis of monolithic COF materials and their application in environmental remediation, as well as discussing current challenges and future perspectives.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Yuki Yamamoto, Fengniu Lu, Takashi Nakanishi, Shigehiko Hayashi
Summary: Functional molecular liquids (FMLs) based on alkylated pi-conjugated molecules have attracted attention as solvent-free and nonvolatile liquid materials with prominent optoelectronic features. Recently, novel FML compounds containing pyrene as the functional core were synthesized, and their rheological and photochemical properties were investigated. The molecules differ in the number of alkyl chain substituents and their substitution positions, and their viscosity coefficients are largely different, indicating that local microscopic molecular interactions are crucial for the macroscopic rheological properties.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Hajime Suzuki, Takanori Takashima, Osamu Tomita, Tomoki Kanazawa, Shunsuke Nozawa, Kosaku Kato, Akira Yamakata, Kouichi Nakashima, Akinori Saeki, Ryu Abe
Summary: In this study, a Bi6NbWO14Cl photocatalyst was synthesized using Rh(2)O(3) additives and its surface was modified with Rh species to improve its photocatalytic activity. The addition of an appropriate amount of Rh2O3 significantly enhanced the O-2 evolution rate on Bi6NbWO14Cl, likely due to enhanced charge transfer by metallic Rh nanoparticles. Surface modification with Rh species further enhanced the O-2 evolution rate, achieving an apparent quantum efficiency of 11% at 420 nm, the best reported performance for oxyhalides prepared by solid-state reactions. The roles of these Rh species in the enhanced photocatalytic activities were discussed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Ryosuke Nishikubo, Yasutaka Kuwahara, Shintaro Naito, Kazuki Kusu, Akinori Saeki
Summary: Hydrogenated molybdenum suboxide (HxMoO3-y) is a promising material for photo-thermal energy conversion (PEC), but its charge carrier dynamics and mechanisms are not well understood. In this study, charge carrier-dielectric interactions in Pt/HxMoO3-y composite were investigated using flash-photolysis time-resolved microwave conductivity. The results showed that the charge recombination of H2-reduced Pt/HxMoO3-y was much faster than that of Pt/MoO3, indicating efficient PEC. The study also identified two trapping mechanisms, Drude-Zener (DZ) and negative permittivity effect (NPE) modes, in Pt/HxMoO3-y depending on the reduction temperature. Optimal PEC performance was achieved when Pt/HxMoO3-y was reduced at 200 degrees C, balancing the suppression of NPE and charge diffusion. This study provides the first insights into charge dynamics in hydrogenated metal oxides and their impact on PEC processes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xiaohong Liu, Xingtao Xu, Xiaoxu Xuan, Wei Xia, Guilin Feng, Shuaihua Zhang, Zhen-Guo Wu, Benhe Zhong, Xiaodong Guo, Keyu Xie, Yusuke Yamauchi
Summary: In this study, a yolk-shell nanoarchitecture of NASICON-structured NTP/C materials (ys-NTP@C) was developed using a metal-organic framework@ covalent organic polymer (MOF@COP) as a sacrificial template and space-confined nanoreactor. ys-NTP@C exhibited good CDI performance with high salt adsorption capacities (SACs) and good cycling stability. This study provides a new synthetic paradigm for preparing yolk-shell structured materials and highlights the potential use of yolk-shell nanoarchitectures for electrochemical desalination.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Takeyuki Sekimoto, Teruaki Yamamoto, Fumito Takeno, Ryosuke Nishikubo, Maki Hiraoka, Ryusuke Uchida, Toru Nakamura, Kenji Kawano, Akinori Saeki, Yukihiro Kaneko, Taisuke Matsui
Summary: To enhance the light stability of lead-halide perovskite solar cells, a self-assembled monolayer (SAM) is introduced between the carrier transport layer and the perovskite layer. By combining a fullerene-functionalized SAM (C(60)SAM) and a suitable gap-filling SAM (GFSAM), both the photovoltaic conversion efficiency (PCE) and light stability are improved. The best cell with C(60)SAM and GFSAM exhibits a PCE of 18.68% and a retention rate of over 99% after a light stability test, and shows almost unchanged PCE after six months of outdoor exposure.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Fengniu Lu, Akira Shinohara, Izuru Kawamura, Akinori Saeki, Tomohisa Takaya, Koichi Iwata, Takashi Nakanishi
Summary: This paper presents the room-temperature liquefaction of diphenylpyrene isomers by introducing bulky yet flexible branched alkyl chains through molecular desymmetrization. Six isomers with different symmetries were synthesized, and three of them were found to be liquids at 25°C and have remained in this state for more than five years. The unexpectedly non-crystallizing molecule with relatively high molecular symmetry was confirmed by rheological analysis of the amorphous material's kinetic inhomogeneity.
HELVETICA CHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Masahiko Saito, Hiroya Yamada, Kakaraparthi Kranthiraja, Tsubasa Mikie, Akinori Saeki, Hideo Ohkita, Itaru Osaka
Summary: In this study, a benzodithiophene-thiazolothiazole copolymer with tripropylsilyl groups (PSTz2) was found to have a larger coplanar backbone structure in solutions and blended films with nonfullerene acceptors, compared to its crystalline state. The excitons and charge carriers in PSTz2 were more easily delocalized in the blend films, potentially through the backbone. This unconventional structural feature resulted in higher photovoltaic performance in nonfullerene-based solar cells compared to its alkyl-functionalized counterpart.
COMMUNICATIONS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ravindra Kumar Gupta, Manabu Yoshida, Akinori Saeki, Zhenfeng Guo, Takashi Nakanishi
Summary: Special attention is being given to the potential use of soft electronics in deformable/wearable devices, and electrets are expected to be a battery-less power source. This study presents a strategy for utilizing charges in alkyl-C-60 liquids. The alkyl-C-60 liquids with bulky long-alkyl chains demonstrated good charge retention and were used to fabricate deformable mechanoelectric generator (MEG) devices, showing promising potential for body motion sensors and healthcare applications.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Kazuyoshi Takimoto, Takumi Shimada, Kazuhiko Nagura, Jonathan P. Hill, Takashi Nakanishi, Hidetaka Yuge, Shinsuke Ishihara, Jan Labuta, Hisako Sato
Summary: This study reports a butyl-benzo[h]quinoline-based iridium(III) complex that forms a homochiral dimer at low temperatures and exhibits thermo-/mechano-chromism. The analysis reveals a strong preference for homochiral dimerization and connected thermo-/mechano-chromic behavior in the complex.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
