April 21, 2009
A symposium with a focus on light microscopy and its application in structural biology, organized by the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany will take place form June 22-23, 2009. The symposium aims to bring together structural biologists, cell biologists and light microscopy specialists to explore opportunities and requirements for structural biologists in using different light microscopy techniques and to foster interactions at the interface between structural biology and cell biology.
Planned sessions include:
– Imaging protein-protein interactions
– Protein dynamics
– Correlative light- electron microscopy
– Super-resolution techniques
Deadline for registration is May 3, 2009.
Heidelberg, Germany (source: pixelio.de)
April 6, 2009
Researchers at the University of Rochester have developed a novel optical technique that permits rapid analysis of single human immune cells using only light. Andrew Berger, associate professor of optics and his graduate student Zachary Smith integrated Raman and angular-scattering microscopy into a single system, which they call IRAM. This is the first time clear differences between two types of immune cells have been seen using a microscopy system that gathers chemical and structural information by combining two previously distinct optical techniques, according to Berger. “Conceptually it’s pretty straightforward – you shine a specified wavelength of light onto your sample and you get back a large number of peaks spread out like a rainbow,” says Berger. “The peaks tell you how the molecules you’re studying vibrate and together the vibrations give you the chemical information.” Until now scientists have not had a non-invasive way to see how human cells, like T cells or cancer cells, activate individually and evolve over time.
IRAM scattering data from a single granulocyte.
IRAM scattering data from a single lymphocyte. Clear differences are visible when compared to data from a granulocyte.