This research aims the failure of soft biological tissues in context minimally invasive surgery based on numerical analysis that fits experimental results. Using robotic arms for assistance medical procedures during last years led to new trends development devices inserting needles into tissues, as well expansion studies types needles. A better understanding mechanical interaction between a too...

We present tomographic imaging of biological tissues by use of microwave-induced acoustic signal. It was demonstrated that the acoustic signal was proportional to the intensity of the incident microwave and was related to the absorption property of microwave in the medium. Pulsed microwave radiation was used to illuminate the samples. Absorbed microwave energy caused thermoelastic expansion tha...

E. T. Sato, A. R. Rocha, L. F. C. S. Carvalho, J. D. Almeida, H. Martinho1∗ Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André-SP, Brazil Instituto de F́ısica Teórica, Universidade Estadual Paulista (UNESP), São Paulo, Brazil FOCAS Institute, Dublin Institute of Technology, Camben Row, Dublin 8, Ireland Depto. de Biociências e Diagnóstico Bucal, Instituto de Ciência ...

The biological tissues exhibit their distinct optical characteristics. Their point-to-point compositional variation could either be determined by the optical parameters or reconstruction of the reflectance or tomographic images. The optical parameters, absorption and reduced scattering coefficients of goat tissues and human post-mastectomy breast specimen are determined by matching of their ref...

The angular and temporal distributions of light scattered around the backward direction from biological tissues are measured. An enhancement of scattered light intensity around the backward direction, which is associated with the weak photon localization, is observed. The transport mean free path l(t) and the absorption length l(a) of the light in biological tissue can be obtained from the angu...

A review of reported tissue optical properties summarizes the wavelength-dependent behavior of scattering and absorption. Formulae are presented for generating the optical properties of a generic tissue with variable amounts of absorbing chromophores (blood, water, melanin, fat, yellow pigments) and a variable balance between small-scale scatterers and large-scale scatterers in the ultrastructu...

Background: Adipokins are cytokines predominantely or exclusively expressed by adipose tissue that circulate and affect target tissues. Four known adipokines, adiponectin, visfatin/PBEF, omentin and vaspin, all increase tissue sensitivity to insulin, and are thus described as ’beneficial’. In this review such biological actions and potential roles of the adipokines leptin, adiponectin and resis...