Active, Controlled Circular and Spin-Rotational Movement of Optically Trapped Airborne Micro-particles

2021 ◽  
Author(s):  
Jessica Arnold ◽  
aimable kalume ◽  
Gorden Videen ◽  
Yongle Pan ◽  
Chuji Wang
Keyword(s):  
Rotational Movement ◽  
Micro Particles ◽  
Optically Trapped

Lithographically Fabricated 10-Micron Scale Autonomous Motors

2008 ◽  
Vol 1135 ◽  
Author(s):  
Yang Wang ◽  
Shih-to Fei ◽  
Vincent H. Crespi ◽  
Ayusman Sen ◽  
Thomas E. Mallouk
Keyword(s):  
Catalytic Reactions ◽  
Free Standing ◽  
Propulsion Systems ◽  
Directed Movement ◽  
Rotational Movement ◽  
Chemical Gradients ◽  
Micro Particles ◽  
Rotary Motors ◽  
Micro Machine ◽  
Complex Movement

ABSTRACTSelf-propulsion and directed movement of nano- and micro-particles can in principle provide novel components for applications in microrobotics and MEMS. Our research involves the design of catalytic propulsion systems and the control of colloidal movement based on this principle. We have designed autonomous nanomotors that mimic biological motors by using catalytic reactions to generate forces derived from chemical gradients. Through architectural control of bimetallic catalytic particles, we have recently developed systems that undergo more complex movement. For example, we have constructed 10-micron scale rotary motors by contact lithography. In these chiral motors, bimetallic Au-Pt patterns are free-standing and move in the pattern predicted by theory. These studies demonstrate that by designing the proper architecture, one can tailor the pattern of movement to specific applications, such as changing from translational to rotational movement. The potential for elaboration of these designs to more complex micro-machine assemblies is discussed.

scholarly journals Raman Spectroscopy of Optically Trapped Single Biological Micro-Particles

Sensors ◽  
2015 ◽  
Vol 15 (8) ◽  
pp. 19021-19046 ◽  
Author(s):  
Brandon Redding ◽  
Mark Schwab ◽  
Yong-le Pan
Keyword(s):  
Raman Spectroscopy ◽  
Micro Particles ◽  
Optically Trapped

scholarly journals Escape trajectories of single-beam optically trapped micro-particles in a transverse fluid flow

2006 ◽  
Vol 14 (4) ◽  
pp. 1685 ◽  
Author(s):  
Fabrice Merenda ◽  
Gerben Boer ◽  
Johann Rohner ◽  
Guy Delacrétaz ◽  
René-Paul Salathé
Keyword(s):  
Fluid Flow ◽  
Single Beam ◽  
Micro Particles ◽  
Escape Trajectories ◽  
Optically Trapped

Real time characterization of hydrodynamics in optically trapped networks of micro-particles

2010 ◽  
Vol 3 (4) ◽  
pp. 244-251 ◽  
Author(s):  
Arran Curran ◽  
Alison Yao ◽  
Graham Gibson ◽  
Richard Bowman ◽  
Jon Cooper ◽  
...  
Keyword(s):  
Real Time ◽  
Micro Particles ◽  
Optically Trapped

Synthesis of Calcium Carbonate Micro Particles using Emulsion Membrane Process Applied for Drug Release Studies

2017 ◽  
Vol 68 (10) ◽  
pp. 2320-2324
Author(s):  
Mariana Mateescu ◽  
Sanda Maria Doncea ◽  
Irina Chican ◽  
Cristina Lavinia Nistor ◽  
Ioneta Codrina Bujanca
Keyword(s):  
Light Scattering ◽  
Calcium Carbonate ◽  
Dynamic Light Scattering ◽  
Liquid Membranes ◽  
Membrane Process ◽  
Emulsion Method ◽  
Micro Particles ◽  
Release Studies ◽  
Emulsion Liquid Membranes ◽  
Span 80

The aim of this work is the synthesis of calcium carbonate (CaCO3) nano and microparticles and their application as biomaterials (vehicles) for the sustained release of doxycycline. CaCO3 micro particles were synthesized by water-in oil (W/O) emulsion method using emulsion liquid membranes with bis (2-ethylhexyl) phosphate (D2EHPA) as carrier, Span 80 as surfactant, and toluene and kerosene as organic solvents. The aqueous phases contained 1 M CaCl2, and 1 M Na2CO3, respectively. The Dynamic Light Scattering (DLS) data showed CaCO3 particles with sizes ranging from around 100 nm to 3500 nm. The CaCO3 particles with the average diameters around 600 nm attained an adsorbtion of doxycycline of maximum 97.9%, and a slow and steady release with a cumulative value of approximative 50% after ten days.

Application of Nano- and Micro-Particles on the Topical Therapy of Skin-Related Immune Disorders

2015 ◽  
Vol 21 (19) ◽  
pp. 2643-2667 ◽  
Author(s):  
Lin Sun ◽  
Zeyu Liu ◽  
Dongmei Cun ◽  
Henry Tong ◽  
Ying Zheng
Keyword(s):  
Topical Therapy ◽  
Immune Disorders ◽  
Micro Particles

Micro-Particles and Picturability: A Reply

1978 ◽  
Vol 45 (3) ◽  
pp. 484-487
Author(s):  
Stephen J. Noren
Keyword(s):  
Micro Particles
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