Results 101 to 110 of about 1,413 (213)
Thermometric Based‐Microswimmers with Chemical and Optical Engines
Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley +1 more source
From Passive to Active: Self‐Propelled Colloids in Coatings Formulation and Film Formation
Self‐propelled Janus colloids are introduced into coating formulations to overcome passive transport limitations during drying. Careful balance of particle activity and evaporation timescales results in their accumulation at both coating interfaces as well as an orientational bias at the top surface.
Karnika Singh +6 more
wiley +1 more source
Confined active Brownian particles: theoretical description of propulsion-induced accumulation
The stationary-state distribution function of confined active Brownian particles (ABPs) is analyzed by computer simulations and analytical calculations. We consider a radial harmonic as well as an anharmonic confinement potential. In the simulations, the
Shibananda Das +2 more
doaj +1 more source
How inertial lift affects the dynamics of a microswimmer in Poiseuille flow
The investigation of microswimmer dynamics provides key insights in the design of active microfluidic systems and opens doors for further studies on inertial active matter.
Akash Choudhary +3 more
doaj +1 more source
Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko +5 more
wiley +1 more source
Light-propulsion wavelength-dependent microswimmer and the fuel and efficiency problem therein
Over the past decades, scientists endeavored to develop nanorobot and envisioned that those tiny artificial machines could be used in medical treatment and material fabrication.
Wang, Jizhuang, 王吉壮
core +1 more source
Graphical representation of nanorobotic platforms for targeted drug delivery. Abstract Background Nanorobotic systems represent an emerging and disruptive paradigm in nanomedicine for precision drug delivery, controlled therapeutic release, and minimally invasive biomedical interventions.
Mohd Shoab Ali +5 more
wiley +1 more source
Optimal Control of Slender Microswimmers [PDF]
We discuss a reduced model to compute the motion of slender swimmerswhich propel themselves by changing the curvature of their body. Our approach isbased on the use of Resistive Force Theory for the evaluation of the viscous forcesand torques exerted by the surrounding fluid, and on discretizing the kinematicsof the swimmer by representing its body ...
Zoppello, Marta +4 more
openaire +4 more sources
Shaping Function: Polymeric 3D Systems With Unconventional Geometries for Biomedical Applications
Particle shape is a key design parameter governing biological interactions. Advances in fabrication enable precise control over anisotropy and compartmentalization, allowing modulation of cellular uptake, transport, and biodistribution, ultimately enhancing therapeutic performance. ABSTRACT Polymer geometry is a primary determinant of physical behavior
Francisca G. Perfeito +2 more
wiley +1 more source
Dynamics of a linear magnetic “microswimmer molecule”
In analogy to nanoscopic molecules that are composed of individual atoms, we consider an active “microswimmer molecule”. It is made of three individual magnetic colloidal microswimmers that are connected by harmonic springs and interact hydrodynamically.
H. Löwen, A. M. Menzel, S. Babel
core +1 more source

