Article
Materials Science, Multidisciplinary
Takumi Inadomi, Kenji Urayama, Nobuyoshi Miyamoto
Summary: In this study, a method for synthesizing composite polymer gel films with hierarchical structures of liquid crystalline nanosheets was established. Different anisotropic and asymmetric structures of two-layer gel films can be obtained by controlling the electrode arrangement, duration, and intensity of the electric field. The anisotropic two-layer structure composite gels exhibit large and fast three-dimensional deformations triggered by temperature changes.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Xiaoyan Yu, Hua Lai, Hongjun Kang, Yuyan Liu, Youshan Wang, Zhongjun Cheng
Summary: This study reports the directional self-transportation of water droplets in oil using a TiO2-coated conical spine. By increasing the surface hydrophilicity and utilizing the Laplace force caused by the conical gradient structure, the self-transportation is achieved. The findings of this study provide new ideas for designing new superwetting self-transportation materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Luca Rebuffi, Xianbo Shi, Zhi Qiao, Matthew J. Highland, Matthew G. Frith, Antoine Wojdyla, Kenneth A. Goldberg, Lahsen Assoufid
Summary: A neural-network machine learning model is developed to control a bimorph adaptive mirror for achieving and maintaining aberration-free coherent X-ray wavefronts. The controller is trained using direct measurements from a real-time wavefront sensor with a coded mask and wavelet-transform analysis. The system has been successfully tested on a bimorph deformable mirror, achieving desired wavefront shapes with sub-wavelength accuracy at 20 keV of X-ray energy.
Article
Materials Science, Multidisciplinary
Pan Jiang, Yuxin Zhang, Xiaoxiao Mu, Desheng Liu, Yanhua Liu, Rui Guo, Zhongying Ji, Xinzhong Wang, Xiaolong Wang
Summary: The research proposes a strategy for programmable shape deformation of hydrogels using grayscale stereolithography, which can control the spatial gradient crosslinking density of hydrogels to achieve expected shape deformation in three dimensions. By adjusting grayscale light intensity and exposure time, predictable shape deformation can be parametrically controlled, while hydration and dehydration properties endow the shape deformation hydrogel with reversible feature.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Fang Zhao, Yuzhan Li, Hong Gao, Ran Tao, Yiqi Mao, Yu Chen, Sheng Zhou, Jianming Zhao, Dong Wang
Summary: This study focuses on the development of deformable superstructures using liquid crystal elastomers (LCEs) as substrates. By optimizing the molar ratio of amine and acrylate, high driving stress and strain are achieved. A finite deformation model based on hyperelastic theory is developed to capture the configuration variation of the LCEs. The developed superstructures exhibit reversible and controlled deformations, and have potential applications in defense and military, aerospace, and bionic robotics.
Article
Polymer Science
Xiaohe Ren, Jun Wang, Tianbo Wang, Zhonghua Li, Shihui Han, Gaohui Sun
Summary: This work designed a combination of macro-porous gradient foam and closed-pore resonator to improve the sound absorption performance of plastic foam materials. By introducing polyimide components and rearranging the internal structure of the foam system, a resonant sound absorption at lower frequencies was enhanced. This gradient compound resonance structure satisfies the convenience of process manufacturing and high-efficiency sound absorption performance, which is essential for the wide application of plastic foam sound-absorbing materials.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Shanshan Wu, Jing Guo, Yilei Wang, Hui Xie, Shaobing Zhou
Summary: A new type of cryopolymerized polyampholyte gel with the multifunctionality of antidehydration, self-healing, and shape-memory has been developed for wearable sensing electronics, enabling automatic repair of physical damages and manual adjustment of performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Hwansoo Shin, Wonsik Eom, Ki Hyun Lee, Woojae Jeong, Dong Jun Kang, Tae Hee Han
Summary: MXene nanosheets self-assembled into hydrogels can be spun into highly aligned fibers with increased electrical conductivity and Young's modulus. These oriented MXene fibers are expected to have widespread applications in electrical wiring and signal transmission.
Article
Nanoscience & Nanotechnology
Shuang Zhao, Jie Zheng, Liu Fang, Yuying Zhang, Liming Zhang, Yanzhi Xia, Yijun Jiang
Summary: A simple green self-assembly method is used to evenly disperse AgNW in water-borne polyurethane, forming an AgNW/WPU conductive nanocomposite film with an asymmetric structure. The film exhibits high strength, high strain, low initial resistance, high conductivity, excellent self-healing, and adhesion.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Multidisciplinary
Rui-Xue Guo, Bao-Quan Ai
Summary: Molecular motors, which convert chemical energy into mechanical energy, are the subject of intense research in biology and physics. The Brownian ratchet model is an important framework for understanding how these motors utilize thermal fluctuations for guided transport. While previous studies have focused on the rectification motions of different types of particles, the transport of deformable particles in asymmetric channels remains relatively unexplored. This study aims to fill that gap by investigating the guided transportation of deformable particles in a confined structure.
ACTA PHYSICA SINICA
(2023)
Article
Automation & Control Systems
Pablo Malvido Fresnillo, Saigopal Vasudevan, Wael M. Mohammed, Jose L. Martinez Lastra, Jose A. Perez Garcia
Summary: A novel machine vision approach is proposed in this study to estimate the shape of Deformable Linear Objects (DLOs). By modeling the shape of objects using polynomial functions, this approach can effectively handle complex environments and interferences between objects.
Article
Chemistry, Multidisciplinary
Arijit Ghosh, Wangqu Liu, Ling Li, Gayatri J. Pahapale, Si Young Choi, Liyi Xu, Qi Huang, Ruili Zhang, Zijian Zhong, Florin M. Selaru, David H. Gracias
Summary: This study describes autonomous microinjectors that can efficiently deliver macromolecular drugs, such as insulin, to the systemic circulation via the gastrointestinal tract. In vitro studies showed that these microinjectors can penetrate the gastrointestinal mucosa and in vivo experiments in rats demonstrated successful release of insulin.
Article
Engineering, Environmental
Xiaodong Chen, Guoqiang Han, Peng Ren, Quanqian Lyu, Miaomiao Li, Lianbin Zhang, Jintao Zhu
Summary: The article presents a multi-mode anti-counterfeiting material that utilizes both structural color and photoluminescence. Through polymerization and specific processing, the material achieves transparent, color-changing properties for the preparation of anti-counterfeiting tags.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Automation & Control Systems
Seungyeon Kim, Taegyun Ahn, Yonghyeon Lee, Jihwan Kim, Michael Yu Wang, Frank C. Park
Summary: This paper proposes a two-step method that combines deformable superquadrics with a deep learning network to identify and grasp partially occluded objects. Experimental results show improved success rates and faster recognition compared to existing methods.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Minchang Kim, Yoonsang Ra, Sumin Cho, Sunmin Jang, Dongik Kam, Yeongcheol Yun, Hyeonsu Kim, Dongwhi Choi
Summary: This study investigates the natural control of the triboelectric effect in the brake system, developing smart brake pads to monitor brake abrasion level. The approach enables real-time perception of the brake pad status without the need for external power sources, contributing to damage prevention and efficient machine diagnosis.
Article
Polymer Science
Jie Li, Shengqiang Nie, Lingren Wang, Shudong Sun, Fen Ran, Changsheng Zhao
JOURNAL OF APPLIED POLYMER SCIENCE
(2013)
Article
Chemistry, Physical
Xiuchen Li, Jie Li, Zhaohui Zheng, Jinni Deng, Yi Pan, Xiaobin Ding
Summary: The study demonstrates that the oscillation period of a large anisotropic SOG increases with a decrease in cross-linking density, affecting the regularity of mechanical oscillations. Interestingly, disrupted mechanical oscillations tend to become regular and periodic under the influence of visible light. Investigating the C-M delay at various scales has significant implications for intelligent soft actuators.
Article
Chemistry, Multidisciplinary
Jie Li, Xiuchen Li, Zhaohui Zheng, Xiaobin Ding
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)
