Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Mechanical and electrical properties of red blood cells using optical tweezers

2011; IOP Publishing; Volume: 13; Issue: 4 Linguagem: Inglês

10.1088/2040-8978/13/4/044012

2040-8986

Adriana Fontes, Mario Castro, M M Brandão, Heloise P. Fernandes, André A. de Thomaz, R.R. Huruta, L. Y. Pozzo, Luíz C. Barbosa, Fernando Ferreira Costa, Sara T.O. Saad, Carlos L. Cesar,

Orbital Angular Momentum in Optics

Optical tweezers are a very sensitive tool, based on photon momentum transfer, for individual, cell by cell, manipulation and measurements, which can be applied to obtain important properties of erythrocytes for clinical and research purposes. Mechanical and electrical properties of erythrocytes are critical parameters for stored cells in transfusion centers, immunohematological tests performed in transfusional routines and in blood diseases. In this work, we showed methods, based on optical tweezers, to study red blood cells and applied them to measure apparent overall elasticity, apparent membrane viscosity, zeta potential, thickness of the double layer of electrical charges and adhesion in red blood cells.