Article
Polymer Science
Abigail K. Grosskopf, Joseph L. Mann, Julie Baillet, Hector Lopez Hernandez, Anton A. A. Autzen, Anthony C. Yu, Eric A. Appel
Summary: Designing high water content nanocomposite hydrogel materials with desired functional properties is a significant challenge. The dynamic cross-linking interactions within the polymer network can be controlled by modulating the chemical composition of the materials, leading to high extensibility and yielding of stress fluids.
Article
Chemistry, Multidisciplinary
Ningning Dong, Zhihua Song, Tiyun Zhu, Yan Qin, Zhiqiang Li, Huanrong Li
Summary: This study reports a clay-polymer hybrid luminescent hydrogel with excellent mechanical strength and luminescent performance. The luminescent colors of the hydrogel can be tailored by adjusting the molar ratio of lanthanide ions, and the luminescence intensity can be reversibly regulated due to the thermoresponsiveness of PNIPA.
NEW JOURNAL OF CHEMISTRY
(2021)
Review
Nanoscience & Nanotechnology
Jiapeng Yang, Yu Zhang, Meng Qin, Wei Cheng, Wei Wang, Yi Cao
Summary: Research has shown the importance of hydrogels in studying the mechanical properties of cells and how they respond to the external mechanical environment, highlighting the need to adjust properties like hydrogel stiffness to better understand related mechanisms.
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY
(2021)
Article
Polymer Science
Haniyeh Malektaj, Aleksey D. Drozdov, Jesper deClaville Christiansen
Summary: This study investigates the preparation of cross-linked alginate hydrogels using various cations and analyzes their equilibrium swelling and mechanical properties. The results show that the type of cations used in the cross-linking process affects the elastic moduli and equilibrium degree of swelling. Experimental data is fitted with a model that involves two material parameters, and numerical analysis reveals the influence of cations on these quantities. The study also finds that the relationship between the elastic modulus and equilibrium swelling differs from that predicted by conventional theory for covalently cross-linked gels.
Article
Chemistry, Multidisciplinary
Xinyao Liu, Xiao He, Bo Yang, Lu Lai, Ningxin Chen, Jinguang Hu, Qingye Lu
Summary: In this study, novel dual physically cross-linked (DPC) hydrogels were developed by incorporating cellulose nanocrystal (CNC) or hydrophobized CNC (CNC-C8) into polymers physically cross-linked by hydrophobic forces. The CNC-C8 DPC hydrogels demonstrated stronger tensile strength and excellent elongation compared to the optimum CNC DPC hydrogels, showcasing the enhanced mechanical properties achieved through introduced hydrophobic interactions. Additionally, these DPC hydrogels could be easily repaired with tetrahydrofuran (THF) while maintaining good tensile stress and elongation behaviors.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xianwen Song, Ting He, Yujie Qi, Yilin Liu, Huiqiong Wu, Chuntai Liu, Yi Zhang
Summary: This study utilizes hydrophobic luteolin to form strong hydrogen bonding in PVA hydrogels, promoting gelation; by controlling factors such as LUT concentration, freezing and thawing, and pH, the mechanical properties of the hydrogels are improved; the research reveals a potential biomedical application of a hydrophobic biocrosslinker for PVA hydrogels.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Swarup Roy, Lindong Zhai, Hyun Chan Kim, Duc Hoa Pham, Hussein Alrobei, Jaehwan Kim
Summary: The chitosan-based nanocomposite film developed in this study showed excellent mechanical properties and UV-blocking effect, as well as potent antioxidant activity, making it promising for active food packaging applications.
Article
Chemistry, Physical
Mengyuan Zhang, Jing Yu, Kaixiang Shen, Ruyue Wang, Jiaqiang Du, Xiaodan Zhao, Yuxuan Yang, Kai Xu, Qiang Zhang, Yanfeng Zhang, Yilong Cheng
Summary: Nanocomposite hydrogels with excellent mechanical properties were prepared, showing remarkable resistance to fatigue fracture and hemostatic activity. These hydrogels not only accelerated skin wound healing in mice but also exhibited exceptional mechanical performance.
CHEMISTRY OF MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Limin Dai, Hengjie Yu, Jun Zhang, Fang Cheng
Summary: Starch-based nanocomposite films reinforced by cross-linked starch nanocrystals (CSNCs) were successfully prepared, showing promising enhancement effects. When the content of CSNCs reached 10%, the nanocomposite film exhibited the best overall performance, making it highly prospective for food packaging and preservation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Bianca G. Queiroz, Heloisa Ciol, Natalia M. Inada, Elisabete Frollini
Summary: The article focuses on the use of the LiCl/DMAc solvent system with TFA to deconstruct sisal fibers and dissolve their main components in order to generate hydrogels. The crosslinked hydrogels showed improved compressive strength and reduced water absorption capacity. The study suggests potential applications in fields where significant compressive strength is required, such as biomedicine and agriculture.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemistry & Molecular Biology
Qiuli Cheng, Shuxiang Ding, Yan Zheng, Meng Wu, Yi-Yang Peng, Diana Diaz-Dussan, Zuosen Shi, Yang Liu, Hongbo Zeng, Zhanchen Cui, Ravin Narain
Summary: An injectable antibacterial hydrogel with self-healing property was developed in this study, utilizing a dual cross-linking network structure and quadruple hydrogen bonds. The hydrogel exhibited excellent mechanical properties, pH and sugar dual-responsiveness, and showed potential for cell and tissue engineering applications.
Article
Polymer Science
Moises Bustamante-Torres, Victor H. Pino-Ramos, David Romero-Fierro, Sandra P. Hidalgo-Bonilla, Hector Magana, Emilio Bucio
Summary: The design of a new pH-sensitive hydrogel for localized prophylactic release of ciprofloxacin and silver nanoparticles was presented in this study. The hydrogel was copolymerized using gamma rays and characterized using various analytical techniques. The antimicrobial activity of the hydrogel against E. coli and MRSA was evaluated in vitro.
Article
Nanoscience & Nanotechnology
Shuai Zheng, Lei Jiang, Fan Chang, Changqi Zhang, Ning Ma, Xueqiang Liu
Summary: This paper presents a new type of chemically cross-linked polyimide aerogels with outstanding mechanical properties, thermal stability, and insulation characteristics. These aerogels have great potential in the field of thermal insulation and provide a new method for the development of polymer-based thermal insulation materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
He Meng, Wenyan Ye, Chunlei Wang, Zeyu Gao, Bingxuan Hu, Caiqi Wang
Summary: This study proposes a new strategy to enhance the mechanical properties of hydrogels through the modulation of ionic interactions. The strategy involves the formation of crystalline micro-nanoparticles (CMNPs) through confinement assembly, and the introduction of these CMNPs into polyacrylamide hydrogels. The composite hydrogels showed significantly improved modulus, fracture stress, and toughness without affecting their tensile properties. Furthermore, a strain sensor for monitoring human motion was designed and demonstrated its potential application in wearable flexible electronics.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Yu-Liang Lin, Sheng Zheng, Chia-Wei Chang, Min-Jie Lee, Yi-Fan Chen, Jiun-Tai Chen
Summary: In this study, versatile and on-demand photocontrollable ionic conductive nanocomposite hydrogels were successfully synthesized via host-guest chemistry. The hydrogels showed higher conductivity under visible light irradiation and lower conductivity under UV irradiation, which could be further manipulated by adjusting the surface-area-to-volume ratio of the nanopores and the alkyl chain length of the anions.
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)