The old saying that seeing is believing has particular resonance for studying biological cells and tissues. Since 1677, when Anton van Leeuwenhoek used a simple light microscope to discover single cell organisms, scientists have relied on structural information obtained from microscopes with improving capabilities to advance the understanding of how biological systems work. Optical and electron microscopes are essential for many of these important discoveries and have been widely employed in biomedical research laboratories. However, various limitations exist in these microscopy techniques. We describe below how the new X-ray imaging facility at the Stanford Synchrotron Radiation Laboratory (SSRL), based on an Xradia nano-XCT full-field transmission X-ray microscope (TXM), can provide complementary and unique capabilities to the current microscopy methods for studying complex biological systems.
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Andrews et al. (2008) studied this question.
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