Measuring Attractive Interaction between a Self-Electrophoretic Micromotor and a Wall DOI
Yankai Xu, Chang Liu, Jiayu Liu

et al.

Physical Review Letters, Journal Year: 2024, Volume and Issue: 133(25)

Published: Dec. 18, 2024

Chemically driven micromotors exhibit a pronounced affinity for nearby surfaces, yet the quantification of this motor-wall interaction strength remains unexplored in experiments. Here, we apply an external force to self-electrophoretic micromotor which slides along wall and measures necessary disengage motor from wall. Our experiments unveil that required disengaging increases with chemical driving, often surpassing both motor's effective gravity its propulsive thrust. Experimental results are reproduced by electrokinetic numerical model incorporates fully resolved double layers. The delineates attractive emerges accumulation excessive protons between wall, thereby exposing nonequilibrium mechanism engenders interactions objects like charge. locked icon Physics Subject Headings (PhySH)ConfinementElectrokinetic flowsElectrophoresisJanus particlesSelf-propelled particles

Language: Английский

Colloidal ionogels: Controlled assembly and self-propulsion upon tunable swelling DOI

Dezhou Cao,

Zuyao Yan,

Donghao Cui

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 522 - 536

Published: Jan. 16, 2025

Language: Английский

Citations

0
Janus micro/nanomotors for enhanced disease treatment through their deep penetration capability DOI

Haoran Ma,

Yuxuan Guo, Xia Xu

et al.

Acta Biomaterialia, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Real-time probing of fast chemical reactions at the oil/water interface during microdroplet generation DOI
Liang Xiao, Jiyizhe Zhang,

Kunlun Gao

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 695, P. 137786 - 137786

Published: May 3, 2025

Language: Английский

Citations

0
Synthesis of acrylonitrile–butadiene–styrene copolymers through interface-initiated room-temperature polymerization DOI Creative Commons

Shijie Wu,

Yao Fu,

Soham Das

et al.

Reaction Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 9(9), P. 2282 - 2292

Published: Jan. 1, 2024

AIBN initiators decomposed efficiently at the oil–water interface room temperature. The interface-initiated room-temperature polymerization produced ductile ABS copolymer monoliths.

Language: Английский

Citations

2
Building Functional Liquid‐Based Interfaces: From Mechanism to Application DOI
Yi Fan,

Xinlu Huang,

Jiaao Ji

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 25, 2024

Abstract Functional liquid‐based interfaces, with their inhomogeneous regions that emphasize the functionalized liquids, have attracted much interest as a versatile platform for broad spectrum of applications, from chemical manufacturing to practical uses. These interfaces leverage physicochemical characteristics alongside dynamic behaviors induced by macroscopic wettability and microscopic molecular exchange balance, allow tailored properties within functional structures. In this Minireview, we provide foundational overview these based on structural investigations mechanisms interaction forces directly modulate functionalities. Then, discuss design strategies been employed in recent crucial aspects require focus. Finally, highlight current challenges perspective future research directions.

Language: Английский

Citations

2
Asymmetric Assembly in Microdroplets: Efficient Construction of MOF Micromotors for Anti‐Gravity Diffusion DOI

Rongkun Liu,

Yanling Guo, Jia Jia

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: June 5, 2024

Abstract Janus‐micromotors, as efficient self‐propelled materials, have garnered considerable attention for their potential applications in non‐agitated liquids. However, the design of micromotors is still challenging and with limited approaches, especially concerning speed mobility complex environments. Herein, a two‐step spray‐drying approach encompassing symmetrical assembly asymmetrical introduced to fabricate metal‐organic framework (MOF) Janus‐micromotors hierarchical pores. Using spray‐dryer, first employed prepare macro‐meso‐microporous UiO‐66 intrinsic micropores (<0.5 nm) alongside mesopores (≈24 macropores (≈400 nm). Subsequent yielded UiO‐66‐Janus loaded reducible nanoparticles, which underwent oxidation by KMnO 4 form MnO 2 micromotors. The efficiently generated O self‐propulsion H , exhibiting ultrahigh speeds (1135 µm s −1 5% solution) unique anti‐gravity diffusion effects. In specially designed simulated sand‐water system, traversed from lower water upper through sand layer. particular, as‐prepared demonstrated optimal efficiency pollutant removal, an adsorption kinetic coefficient exceeding five times that only possessing mesopores. This novel strategy fabricating shows great treatment

Language: Английский

Citations

2
Active Colloids in Complex Environments DOI
Stefania Ketzetzi, Juliane Simmchen, Lucio Isa

et al.

Royal Society of Chemistry eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 504 - 537

Published: Dec. 20, 2024

This chapter provides an overview of the effects complex environments on active colloids. We start with solid boundaries and confining structures, highlight interactions colloids other “softer” passive objects, show parallels behaviours observed when particles move close to – or directly at interfaces. In second half, we address unbound domains, in particular, velocity-modulating effect local gradients.

Language: Английский

Citations

1
Building Functional Liquid‐Based Interfaces: From Mechanism to Application DOI
Yi Fan,

Xinlu Huang,

Jiaao Ji

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(32)

Published: May 25, 2024

Abstract Functional liquid‐based interfaces, with their inhomogeneous regions that emphasize the functionalized liquids, have attracted much interest as a versatile platform for broad spectrum of applications, from chemical manufacturing to practical uses. These interfaces leverage physicochemical characteristics alongside dynamic behaviors induced by macroscopic wettability and microscopic molecular exchange balance, allow tailored properties within functional structures. In this Minireview, we provide foundational overview these based on structural investigations mechanisms interaction forces directly modulate functionalities. Then, discuss design strategies been employed in recent crucial aspects require focus. Finally, highlight current challenges perspective future research directions.

Language: Английский

Citations

0
Reconfiguring Alginate-Based Supra-amphiphiles via Redox-Responsive Pickering Emulsions for Enhancing Pesticide Droplet Retention DOI
Shujuan Yang,

Keyang Mai,

Congying Xu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

In view of the micro/nanostructure tunability colloid particles, they acted as agrichemical delivery systems. Herein, supra-amphiphilic colloids were fabricated using a host-guest interfacial recognition-architected emulsion template strategy and controlled their agricultural interactions with superhydrophobic target surface. Interestingly, supramolecular system possessed redox-stimulated molecular reconfigurability by regulating aggregation/disaggregation behaviors. Therefore, surface roughness silver willow-like was readily modulated tuning micro/nanointerfaces template, which exhibited topology pliability that allowed them to adapt micro/nanostructures leaf surfaces. It simultaneously solved comprehensive problems adhesion, bounding, rainwashing pesticide droplets multiscale coupling effect. Intriguingly, retention dominantly depended on degree colloids, most roughened one showed greatest in vitro antifungal efficiency against

Language: Английский

Citations

0
Measuring Attractive Interaction between a Self-Electrophoretic Micromotor and a Wall DOI
Yankai Xu, Chang Liu, Jiayu Liu

et al.

Physical Review Letters, Journal Year: 2024, Volume and Issue: 133(25)

Published: Dec. 18, 2024

Chemically driven micromotors exhibit a pronounced affinity for nearby surfaces, yet the quantification of this motor-wall interaction strength remains unexplored in experiments. Here, we apply an external force to self-electrophoretic micromotor which slides along wall and measures necessary disengage motor from wall. Our experiments unveil that required disengaging increases with chemical driving, often surpassing both motor's effective gravity its propulsive thrust. Experimental results are reproduced by electrokinetic numerical model incorporates fully resolved double layers. The delineates attractive emerges accumulation excessive protons between wall, thereby exposing nonequilibrium mechanism engenders interactions objects like charge. locked icon Physics Subject Headings (PhySH)ConfinementElectrokinetic flowsElectrophoresisJanus particlesSelf-propelled particles

Language: Английский

Citations

0