The Dielectrophoretic Interactions of Curved Particles in a DC Electric Field DOI Creative Commons

Zhiwei Huang,

Tong Zhang, Feng Jing

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 596 - 596

Published: May 20, 2025

In practical dielectrophoretic cell interaction experiments, cells do not always exhibit circular or rod-like shapes, making the study of interactions among irregularly shaped particles significant importance. We established a mathematical model for curved to analyze their mutual interactions, incorporating particle deformability by varying shear modulus, and employed arbitrary Lagrangian–Eulerian method describe motion deformation. The results demonstrate that under influence direct current electric field, undergo rotation, deformation, attraction due dielectrophoresis, eventually forming stable alignment parallel applied field. Adjusting field strength effectively modulates intensity movement velocity between particles. This elucidates fundamental principles governing deformable in DC fields, providing theoretical guidance manipulation experiments involving biological cells, metallic particles, other entities fields.

Language: Английский

Pt-Induced Sublattice Distortion Facilitates Enzyme Cascade Reactions for Eradicating Intracellularly Methicillin-Resistant Staphylococcus aureus and Enhancing Diabetic Wound Healing DOI

Xiaoning Hou,

Hongsu Wang, Xinyu Yao

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Metal oxide nanozymes hold significant potential in combating bacterial infections; however, their ordered crystal structures limit the enhancement of catalytic activity, posing challenges addressing clinical needs for eliminating intracellularly colonized bacteria. Here, we report development an integrated diagnostic-therapeutic microneedle patch incorporates Res@PtZ-Z nanozyme hybrid. consists a ZIF shell loaded with natural compound resveratrol (Res), encapsulating Pt-doped zinc (ZnO) core (PtZ). The Res component modulates charge distribution on and attenuates virulence, thereby promoting uptake by host cells. PtZ core, doped Pt4+ to induce sublattice distortion ZnO, exhibits oxidase-like, peroxidase-like, catalase-like activities. Under intracellular hypoxic conditions, cascade these enzyme-like activities ensures sustained generation reactive oxygen species (ROS), enabling robust antibacterial effects. Additionally, enables real-time infection monitoring oxidizing 3,3',5,5'-tetramethylbenzidine (TMB) substrate produce distinct colorimetric response. This approach addresses both methicillin-resistant Staphylococcus aureus (MRSA) invasion persistence, contributing improved management wound healing.

Language: Английский

Citations

0
Regulatory Mechanisms of Two-Component Systems in Vibrio cholerae: Enhancing Pathogenicity and Environmental Adaptation DOI
Qian Wang, Ruiying Liu, Yuanyuan Niu

et al.

Microbiological Research, Journal Year: 2025, Volume and Issue: 298, P. 128198 - 128198

Published: May 1, 2025

Language: Английский

Citations

0
MgFe-LDHs/Vallisneria natans combined system for simultaneous elimination of endogenous N and P pollution in eutrophic water: Performance, synergetic mechanism, and metagenomics analysis DOI

Zihao Hu,

Zeyu Li,

Yin Xu

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: 279, P. 121798 - 121798

Published: May 9, 2025

Language: Английский

Citations

0
The Dielectrophoretic Interactions of Curved Particles in a DC Electric Field DOI Creative Commons

Zhiwei Huang,

Tong Zhang, Feng Jing

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 596 - 596

Published: May 20, 2025

In practical dielectrophoretic cell interaction experiments, cells do not always exhibit circular or rod-like shapes, making the study of interactions among irregularly shaped particles significant importance. We established a mathematical model for curved to analyze their mutual interactions, incorporating particle deformability by varying shear modulus, and employed arbitrary Lagrangian–Eulerian method describe motion deformation. The results demonstrate that under influence direct current electric field, undergo rotation, deformation, attraction due dielectrophoresis, eventually forming stable alignment parallel applied field. Adjusting field strength effectively modulates intensity movement velocity between particles. This elucidates fundamental principles governing deformable in DC fields, providing theoretical guidance manipulation experiments involving biological cells, metallic particles, other entities fields.

Language: Английский

Citations

0