Results 71 to 80 of about 10,840 (298)

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

Advanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri, Agustín Mangiarotti, Anne Seewald, Nikolai Rosenthal, Shahrouz Amini, Emeline Raguin, Peter Fratzl, Cécile M. Bidan   +7 more
wiley   +1 more source

Polymer brushes for antibiofouling and lubrication

Biosurface and Biotribology, 2017
Surface-initiated atom transfer radical polymerization (SI-ATRP) could provide many merits for the preparation of polymer brush, such as the well-defined chemical configurations, gradient, architecture and thickness.
Wufang Yang, Feng Zhou
doaj   +1 more source

Homo- and mixed polymer brushes prepared by surface-grafting of asymmetric non-sticky/sticky diblock copolymers and their stimuli-responsive behaviors

, 2013
We synthesize a non-sticky/sticky diblock copolymer, poly[styrene-b-3-(trimethoxysilyl)propylmethacrylate], to produce polymer brushes using the grafting-to technique.
Ryu, Jae-Seol, Park, Ji-Woong, Han, Mingu   +2 more
core   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

Advanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang, Katja Kretschmer, Sharif Haidar, Georg Garnweitner, Daniel Schröder   +4 more
wiley   +1 more source

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Grafting photochromic spiropyran polymer brushes on natural rubber surface via surface-initiated ring-opening metathesis polymerization

Alexandria Engineering Journal
The modification of stereoregulated functionalized polymers on the surface of natural rubber (NR) is a challenging task. This work provided a practicable grafting method to design photochromic polymer brushes on the NR surfaces using surface-initiated ...
Wenya Zhu, Bangsen Li, Jinrui Liu, Shishu Sun, Yan Zhang, Dashuai Zhang, Tianyi Sun, Sumin Zhang, Chen Li, Jianjun Shi, Zaifeng Shi   +10 more
doaj   +1 more source

Towards controlled polymer brushes via a self-assembly-assisted-grafting-to approach

Nature Communications, 2016
Polymer brushes, whereby single layers of polymers are tethered to surfaces, can be made by various methods but greater control over their fabrication is desirable.
Tian Zhou, Hao Qi, Lin Han, Dmitri Barbash, Christopher Y. Li   +4 more
doaj   +1 more source

The thickness of surface grafting layer on bio-materials directly mediates the immuno-reacitivity of macrophages in vitro

Open Life Sciences, 2020
Introducing the surface grafting layers to regulate bio-compatibility and bio-function is an important step in the tissue engineering field. However, whether the thickness variation of the introduced biomimetic layer impacts the behavior of the adhered ...
Xiao JiangWei, Huang Tao, Hu JiJie, Zan Fei, Liao ZhaoHong, Gu RuiCai, Wu Gang, Liao Hua   +7 more
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Conformational properties of polymer brushes with aggrecan-like macromolecules under strong stretching conditions on a cubic lattice

Научно-технический вестник информационных технологий, механики и оптики
The comb-like polymers are used to modify various surfaces due to their branched structure and a number of unique physical and chemical properties. With a sufficiently dense grafting, the macromolecules form a homogeneous polymer brush that completely ...
I. V. Lukiev, I. V. Mikhailov, O. V. Borisov   +2 more
doaj   +1 more source