Results 141 to 150 of about 2,721,612 (374)

Spatially selective manipulation of cells with single-beam acoustical tweezers

open access: yesNature Communications, 2020
Acoustical tweezers can exert forces several orders of magnitude greater than optical tweezers but the absence of spatial selectivity and their limited resolution has prevented their use for many applications in microbiology.
Michael Baudoin   +9 more
doaj   +1 more source

Optical trapping and optical binding using cylindrical vector beams

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
We report on the use of cylindrical vector beams for optical manipulation of micron and sub-micron sized particles using the methods of a single-beam gradient force trap (optical tweezers) and an evanescent-field surface trap (optical binding).
S. E. Skelton   +5 more
doaj   +1 more source

Optical tweezers in single-molecule biophysics

open access: yesNature Reviews Methods Primers, 2021
C. Bustamante   +3 more
semanticscholar   +1 more source

Single Cell Isolation Using Optical Tweezers

open access: yesMicromachines, 2018
Optical tweezers offer a non-contact method for selecting single cells and translocating them from one microenvironment to another. We have characterized the optical tweezing of yeast S.
A. Keloth   +3 more
semanticscholar   +1 more source

Interaction of Oligonucleotides with Gold Nanoparticles: Factors Beyond Electrostatic and Van‐Der Waals Forces

open access: yesAdvanced Materials Interfaces, EarlyView.
The formation of stable clusters of gold nanoparticles with oligonucleotides at different solution conditions is explored. DNA base homogeneity and strand directionality influence the binding with gold nanoparticles leading to interesting clustering behavior that can be relevant for SERS applications.
Shaila Thakur   +3 more
wiley   +1 more source

Polystyrene Nanoplastic‐Mercury Complexes Detection by Electrolyte‐Gated Carbon Nanotube Field‐Effect Transistor‐Based Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
An electrolyte‐gated field effect transistor sensor is used to detect an environmentally relevant nanoplastic model. The sensor identifies the presence of polystyrene nanoplastics in water dispersions without significantly altering its performance in the presence of mercury on the nanoplastics’ surface, indicating that it may be utilized in ...
Giulia Elli   +6 more
wiley   +1 more source

Fabrication of Schiff Base Interfacial Films via Polyethyleneimine and Glutaraldehyde for pH‐Responsive Oil‐in‐Water High Internal Phase Emulsions

open access: yesAdvanced Materials Interfaces, EarlyView.
Due to the Schiff base reaction between polyethyleneimine and glutaraldehyde in the aqueous phase, a pH‐responsive interfacial film is constructed at the interface of the two immiscible phases. Consequently, both pH‐reversible high internal phase emulsions and pH‐controlled release capsules can be easily fabricated using this emulsion system.
Lei Sun   +6 more
wiley   +1 more source

Comment on ''Measurement of Effective Temperatures in an Aging Colloidal Glass'' [PDF]

open access: yes, 2007
We measure the fluctuations of the position of a silica bead trapped by an optical tweezers during the aging of a Laponite suspension.
Ciliberto, Sergio   +2 more
core   +2 more sources

Entanglement of two individual atoms using the Rydberg blockade

open access: yes, 2008
We report on our recent progress on the manipulation of single rubidium atoms trapped in optical tweezers and the generation of entanglement between two atoms, each individually trapped in neighboring tweezers.
Browaeys, A.   +10 more
core   +16 more sources

Chiral optical tweezers for optically active particles in the T-matrix formalism

open access: yesScientific Reports, 2019
Modeling optical tweezers in the T-matrix formalism has been of key importance for accurate and efficient calculations of optical forces and their comparison with experiments.
F. Patti   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy