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Seeing the blood flow that helps us see

The quality of the posters at the the OSA biomedical optics conference this year has been exceptionally high and over the last three days I came across a number of projects that warranted highlighting in the blog. Some of these include the work of Jessica Kishimoto and Prof. Keith St. Lawrence at Western University on the application of diffuse correlation spectroscopy and ultrasound imaging to...

Added:30 Apr 2014

The Early Photon Gets the Worm

One of the biggest problems with using light to analyze biological tissue is that photons in the visible and near-visible spectrum have a very high probability of scattering multiple times as they propagate through the tissue. This is a well-known problem that restricts high-resolution optical microscopy to tissue thicknesses of only a few microns. It has also led researchers to develop...

Added:25 Apr 2014

It takes blood, sweat, and SERS to image single cells

Throw out those old dusty fluorescent molecules and welcome in the next generation of optical contrast agents. SERS (Surface Enhanced Raman Scattering/Spectroscopy) nanoparticles are sophisticated new contrast agents that offer some distinct advantages over conventional fluorescent molecules for investigating molecular biology.

Added:20 Feb 2014

Where would biomedicine be without optics?

Much of the emphasis in biomedical optics research has been placed on the clinical translation of our technologies -- and rightfully so!  As my fellow blogger Dr. Ken Tichauer indicates, the potential impact in the clinic is great and the future remains bright.  But as we gear up for OSA BIOMED 2014 in Miami, I will be excited to learn about some of the latest applications in basic...

Added:10 Feb 2014

Photoimmunotherapy (PIT) busts open the doors for drug delivery

Over the last decade alone, it is estimated that over $200 billion has been spent just by governments to fund cancer research [1]. Despite this enormous investment, the recently released 2014 World Heath Organization (WHO) Cancer Report suggests that cancer incidence rates and deaths from cancer are on the rise, both in more developed and less developed nations.

Added:06 Feb 2014