Results 1 to 10 of about 61,123 (248)

Electrorotation of semiconducting microspheres [PDF]

open access: yesPhysical Review E, 2019
We study experimentally the electrorotation (ROT) of semiconducting microspheres. ZnO microspheres obtained by a hydrothermal synthesis method are dispersed in KCl aqueous solutions and subjected to rotating electric fields. Two ROT peaks are found in experiments: a counterfield peak and a cofield peak at somewhat higher frequencies. These observations
Laida Rodríguez-Sánchez   +2 more
openaire   +3 more sources

Refractometry of organosilica microspheres [PDF]

open access: yesApplied Optics, 2007
9 pages, 8 ...
Seet, K. Y. T.   +6 more
openaire   +5 more sources

Microspheres of Mixed Proteins [PDF]

open access: yesChemistry – A European Journal, 2010
AbstractThis paper describes the synthesis of mixed proteinaceous microspheres (MPMs) by the sonochemical method. The current fundamental research follows the research of Suslick and co‐workers who have developed a method by which high‐intensity ultrasound is used to make aqueous suspensions of proteinaceous microcapsules filled with water‐insoluble ...
Artur Cavaco-Paulo   +5 more
openaire   +4 more sources

Floating microspheres: a review [PDF]

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2012
Gastric emptying is a complex process, one that is highly variable and that makes in vivo performance of drug delivery systems uncertain. A controlled drug delivery system with prolonged residence time in the stomach can be of great practical importance for drugs with an absorption window in the upper small intestine.
Mukund, Jagtap Yogesh   +2 more
openaire   +5 more sources

A Self-Assembled Microlensing Rotational Probe [PDF]

open access: yes, 1998
A technique to measure microscopic rotational motion is presented. When a small fluorescent polystyrene microsphere is attached to a larger polystyrene microsphere, the larger sphere acts as a lens for the smaller microsphere and provides an optical ...
Brody, James P., Quake, Stephen R.
core   +2 more sources

Recoiling DNA Molecule: Simulation & Experiment [PDF]

open access: yes, 2002
Single molecule DNA experiments often generate data from force versus extension measurements involving the tethering of a microsphere to one end of a single DNA molecule while the other is attached to a substrate.
Dickman, Ronald   +2 more
core   +2 more sources

Mechanical oscillations in lasing microspheres [PDF]

open access: yesJournal of Applied Physics, 2017
We investigate the feasibility of activating coherent mechanical oscillations in lasing microspheres by modulating the laser emission at a mechanical eigenfrequency. To this aim, 1.5%Nd3+:Barium-Titanium-Silicate microspheres with diameters around 50 μm were used as high quality factor (Q > 106) whispering gallery mode lasing cavities.
Nestor E. Capuj   +7 more
openaire   +11 more sources

A spatial refractive index sensor using whispering gallery modes in an optically trapped microsphere [PDF]

open access: yes, 2006
We propose the use of an optically trapped, dye doped polystyrene microsphere for spatial probing of the refractive index at any position in a fluid. We demonstrate the use of the dye embedded in the microsphere as an internal broadband excitation source,
Mosk, Allard   +3 more
core   +3 more sources

All-Optical Nanopositioning of High-Q Silica Microspheres [PDF]

open access: yes, 2017
A tunable, all-optical, coupling method has been realized for a high-\textit{Q} silica microsphere and an optical waveguide. By means of a novel optical nanopositioning method, induced thermal expansion of an asymmetric microsphere stem for laser powers ...
Chormaic, SÍle Nic   +4 more
core   +3 more sources

Influence of the photonic nanojet of microspheres on microsphere imaging

open access: yesOptics Express, 2017
The imaging properties of BaTiO3 glass (BTG) microspheres in the diameter range of 5-50 µm which are fully immersed in a polydimethylsiloxane layer are experimentally studied. Our experimental results show that for both Blu-ray disc samples and the single-layer hexagonally close-packed microsphere array samples, with the increase of the diameter of BTG
Jianguo Wang   +6 more
openaire   +3 more sources

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