Ion Adsorption and Hydration Superlubricity DOI Creative Commons
Tianyi Han, Chenhui Zhang, Jianbin Luo

et al.

IntechOpen eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

The surface-water interactions are pivotal in interfacial functions and properties relevant many natural processes, particularly the lubrication systems of living organisms, like articular cartilage, oral mucosa, cardiovascular system, muscle, tendon tissue. ion adsorption often determines performance, especially hydration superlubricity, which depends on surface charge characteristics types. superlubricity mechanism has been well understood over past 30 years, further promotes exploration development artificial materials inspired by nature. This review first introduces basic solid–liquid interface system related to hydrated ions. Then, influencing factors presented. Subsequently, negatively charged based overall modification summarized, including modified PEEK UHMWPE with ultra-low friction coefficient wear rate. Finally, potential application such joints underwater equipment put forward. It is projected that interest from science engineering communities will continue accelerate near future, accompanied concept superlubricitive engineering.

Language: Английский

Reentrant Condensation of Polyelectrolytes Induced by Diluted Multivalent Salts: The Role of Electrostatic Gluonic Effects DOI Creative Commons
Huaisong Yong

Biomacromolecules, Journal Year: 2024, Volume and Issue: 25(11), P. 7361 - 7376

Published: Oct. 21, 2024

We explore the reentrant condensation of polyelectrolytes triggered by multivalent salts, whose phase-transition mechanism remains under debate. propose a theory to study condensation, which separates electrostatic effect into two parts: short-range gluonic because sharing ions ionic monomers and long-range correlation from all ions. The suggests that governs requiring minimum coupling energy initiate phase transition. This explains why diluted salts with selective multivalency trigger polyelectrolyte also uncovers strong adsorption onto causes low-salt concentrations induce both collapse reentry transitions. Additionally, we highlight how incompatibility uncharged moieties water affects behaviors. obtained results will contribute understanding biological separations if bound biopolyelectrolytes play an essential role.

Language: Английский

Citations

0
Ion Adsorption and Hydration Superlubricity DOI Creative Commons
Tianyi Han, Chenhui Zhang, Jianbin Luo

et al.

IntechOpen eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

The surface-water interactions are pivotal in interfacial functions and properties relevant many natural processes, particularly the lubrication systems of living organisms, like articular cartilage, oral mucosa, cardiovascular system, muscle, tendon tissue. ion adsorption often determines performance, especially hydration superlubricity, which depends on surface charge characteristics types. superlubricity mechanism has been well understood over past 30 years, further promotes exploration development artificial materials inspired by nature. This review first introduces basic solid–liquid interface system related to hydrated ions. Then, influencing factors presented. Subsequently, negatively charged based overall modification summarized, including modified PEEK UHMWPE with ultra-low friction coefficient wear rate. Finally, potential application such joints underwater equipment put forward. It is projected that interest from science engineering communities will continue accelerate near future, accompanied concept superlubricitive engineering.

Language: Английский

Citations

0