Estimation of helical angles of myosin and collagen by second harmonic generation imaging microscopy

F Tiaho, G Recher, D Rouède - Optics express, 2007 - opg.optica.org
We performed Second Harmonic Generation (SHG) imaging microscopy of endogeneous
myosin-rich and collagen-rich tissues in amphibian and mammals. We determined the …

Structure of a gel phase lipid bilayer prepared by the Langmuir− Blodgett/Langmuir-Schaefer method characterized by sum-frequency vibrational spectroscopy

J Liu, JC Conboy - Langmuir, 2005 - ACS Publications
The structure of a planar supported lipid bilayer (PSLB) prepared by the Langmuir− Blodgett
(LB)/Langmuir-Schaefer (LS) method was investigated by sum-frequency vibrational …

Nonlinear optical bioinspired peptide nanostructures

A Handelman, S Lavrov, A Kudryavtsev… - Advanced Optical …, 2013 - Wiley Online Library
A nonlinear optical effect of a second harmonic generation (SHG) was first observed in
quartz and then found in many inorganic materials that have an asymmetric crystalline …

In vivo, pixel-resolution mapping of thick filaments' orientation in nonfibrilar muscle using polarization-sensitive second harmonic generation microscopy

S Psilodimitrakopoulos, SICO Santos… - Journal of …, 2009 - spiedigitallibrary.org
The polarization dependence of second harmonic generation (SHG) microscopy is used to
uncover structural information in different muscle cells in a living Caenorhabditis elegans (C …

Collagen and myosin characterization by orientation field second harmonic microscopy

C Odin, T Guilbert, A Alkilani, OP Boryskina, V Fleury… - Optics express, 2008 - opg.optica.org
Collagen and myosin fibrils are endogenous harmonophores that both give rise to Second
Harmonic Generation (SHG). By combining four polarization SHG images provided by a …

Estimating the helical pitch angle of amylopectin in starch using polarization second harmonic generation microscopy

S Psilodimitrakopoulos, I Amat-Roldan… - Journal of …, 2010 - iopscience.iop.org
Starch granules are among the brightest natural second harmonic generation (SHG)
converters. They basically consist of amylose and amylopectin molecules and the source of …

[HTML][HTML] Second harmonic generation in neurons: electro-optic mechanism of membrane potential sensitivity

J Jiang, KB Eisenthal, R Yuste - Biophysical journal, 2007 - cell.com
Second harmonic generation (SHG) from membrane-bound chromophores can be used to
image membrane potential in neurons. We investigate the biophysical mechanism …

Fast monitoring of in-vivo conformational changes in myosin using single scan polarization-SHG microscopy

S Psilodimitrakopoulos, P Loza-Alvarez… - Biomedical optics …, 2014 - opg.optica.org
Fast imaging of molecular changes under high-resolution and label-free conditions are
essential for understanding in-vivo processes, however, current techniques are not able to …

Quantitative imaging of microtubule alteration as an early marker of axonal degeneration after ischemia in neurons

S Psilodimitrakopoulos, V Petegnief, N de Vera… - Biophysical journal, 2013 - cell.com
Neuronal death can be preceded by progressive dysfunction of axons. Several pathological
conditions such as ischemia can disrupt the neuronal cytoskeleton. Microtubules are basic …

Estimation of the effective orientation of the SHG source in primary cortical neurons

S Psilodimitrakopoulos, V Petegnief, G Soria… - Optics express, 2009 - opg.optica.org
In this paper we provide, for the first time to our knowledge, the effective orientation of the
SHG source in cultured cortical neuronal processes in vitro. This is done by the use of the …