Results 111 to 120 of about 94,544 (242)

A Robust Bio‐Supportive Hydrogel Patch for Full‐Thickness Repair of Gastroesophageal Defects

Advanced Science, EarlyView.
Gastroesophageal defect repair remains a formidable clinical challenge plagued by high leakage and life‐threatening complications. We develop a double‐disc, highly crystalline PVA‐based RBS hydrogel patch featuring suture‐free sealing, robust acid/enzyme resistance and mechanical durability.
Xingqi Song, Zhewei Shuai, Weiyan Sun, Liang Chen, Yiwei Shen, Jiateng Hu, Yuanqi Ma, Jie Luo, Meilin Huang, Yan Luo, Yunlang She, Guangdong Zhou, Chang Chen, Dong Lei   +13 more
wiley   +1 more source

Nonlinear Ion‐Specific Control of Underwater Adhesion by Bottlebrush Polymer Interfaces

Advanced Science, EarlyView.
The efficiency of underwater adhesion is modulated by ion‐specific effects. Strongly hydrated Na+ remains separated from the mica surface by its hydration shell, preserving access to binding sites, whereas weakly hydrated K+ can partially dehydrate and occupy ditrigonal cavities.
Chang‐Sheng Wang, Hui Guo, Hu Zhang, Duy Anh Pham, Nahid Hassanpour, Wojciech Raj, Qiang Peng, Justine Saber, Tzu‐Hsuan Huang, Florina G. Halmac, Xavier Banquy   +10 more
wiley   +1 more source

Enhanced Acoustic Adhesion Enabling Agile and Small Wall‐Climbing Robot Design With Anisotropic Origami Structure

Advanced Science, EarlyView.
This 28 g robot incorporates innovative ring structures and anisotropic origami springs to achieve high speeds and exceptional load capacity. It successfully carries a 100 g payload while ascending walls or ceilings at speeds of up to 8 and 20 cm/s, demonstrating enhanced adhesion and maneuverability over current climbing robots.
Xinxian Chen, Kanglong Yuan, Ao Qin, Yikun Liu, Yusen Ma, Jun Peng   +5 more
wiley   +1 more source

Si3N4 as a biomaterial and its tribo-characterization under water lubrication

, 2016
Hip implant wear is recognised as the main cause of hip implant failure therefore has been widely investigated both experimentally and clinically, demonstrating the coexistence of abrasive, adhesive, fatigue and corrosive wear.
Özmen, Yılmaz
core   +1 more source

A ROS‐Responsive and Mucoadhesive Thermosensitive Hydrogel Encapsulated with Mizoribine for Synergistic Dry Eye Therapy

Advanced Science, EarlyView.
The ROS‐responsive in situ thermosensitive MZR@SPPP hydrogel system enables dual‐stage drug loading and sustained ocular delivery. Upon administration, it gelates at ocular surface temperature, enhancing ocular adhesion. By scavenging free radicals, restoring NRF2‐mediated antioxidant defense and mitochondrial homeostasis, and suppressing inflammatory ...
Danyi Qin, Jiani Li, Panqin Ma, Shinan Wu, Wenying Guan, Yimin Huang, Ke Feng, Mingyan Wei, Zixuan Yang, Shujia Guo, Caihong Huang, Yun‐Long Wu, Yi Han, Zuguo Liu   +13 more
wiley   +1 more source

Nanoscale Buried Interface Control in Silicone Hydrogels Enables a Biointerface Engineering Platform

Advanced Science, EarlyView.
A hydrophilic coating with controllable nanoscale thickness is applied to commercial silicone hydrogel contact lenses. By combining comprehensive multi‐modal three‐dimensional characterization with an advanced algorithm, the thickness and chemical information of these multilayered structures are resolved.
Po‐Hsiang Chen, Jia‐Hua Wang, Ching Chen, Shih‐Hsuan Fu, Rajan Deepan Chakravarthy, Hsin‐Chieh Lin   +5 more
wiley   +1 more source

Dual‐Dynamically Crosslinked Nanogels Enable Prolonged Ocular Retention for Multimodal Dry Eye Therapy

Advanced Science, EarlyView.
This berberine‐loaded dual‐dynamically crosslinked nanogel integrates tannic acid‐zinc metal‐phenolic networks and carboxymethyl chitosan/aldehyde‐functionalized poly(ethylene glycol) dynamic Schiff base networks, achieving 1‐year colloidal and antioxidant stability, sustained corneal berberine exposure for 24 h to support convenient once‐daily dosing,
Yanru Xin, Sisi Chen, Shengli Huang, Mengqi Huang, Jingyan Zhu, Zijian Wang, Jianliang Shen, Qinxiang Zheng   +7 more
wiley   +1 more source

Mechanochemical Defluorination of Polytetrafluoroethylene (PTFE) With Base Metals

Angewandte Chemie, EarlyView.
Polytetrafluoroethylene (PTFE) mechanochemically reacts with safe‐to‐handle, abundant, and inexpensive base metals Zn and Al, as well as with metals like Cd and Pb, to produce sp2‐carbon and industrially important metal fluorides. The reactivity presents PTFE as a mechanochemical fluorination agent, with opportunities for closed‐loop reductive ...
Anže Zupanc, A. R. Bonnie J. Lutton Gething, Alex J. Green, Shrestha Banerjee, Moosa Wasim, Luis Simbari, Benjamin B. Duff, Peter R. Slater, Dominik J. Kubicki, Erli Lu, Tomislav Friščić   +10 more
wiley   +2 more sources

Improvement of mechanical properties of biomimetic‐layered Si3N4 ceramics with TiN as the interface layer

International Journal of Ceramic Engineering & Science
In order to synergistically improve the strength and toughness of Si3N4 ceramic. We imitate the structure of shell nacre and use Si3N4 as the matrix layer, TiN is used as the interface layer.
Xinghua Shen, Tongyang Li, Lizhi Zhang, Lujie Wang, Yuan Yu, Huaguo Tang, Zhuhui Qiao   +6 more
doaj   +1 more source

Methanol‐Regulated Interfacial Polymerization of Fluorinated Polyamide Membranes Enables Rapid Liquid Hydrocarbon Separation

Advanced Science, EarlyView.
Through methanol‐regulated interfacial polymerization (IP), bulky trifluoromethyl (‐CF3) groups are successfully integrated into polyamide networks. Unlike conventional membranes that suffer from severe solvent‐induced swelling, the fluorinated network sterically resists structural expansion.
Xingxiang Li, Mingzheng Yan, Kexin Ma, Jing Li, Yishuo Huang, Wenzhe Liu, Mingrui He, Xianshi Wang, Jun Ma, Zongyao Zhou   +9 more
wiley   +1 more source