Using Holographic Endoscopes to Observe Distant Objects

Scientists are developing tools to observe the biological machinery in in vivo animal models to be able to understand and better treat severe brain diseases, and holographic endoscopes attracted interest because of their potential to conduct minimally invasive observations. In APL Photonics, researchers in Germany created a particularly narrow endoscope made of single hair-thin optical fibers that uses holographic methods to reconstruct images of macroscopic objects placed in front of the far end of the endoscope.

Eyeglass-attached display device provides immediate fluoroscopic guidance during spinal instrumentation surgery

Researchers from Tokyo tested a device that, when attached to everyday eyeglasses, displays fluoroscopic images used for surgical guidance directly to the surgeon. The device allowed the surgeon to focus on operative tasks more efficiently and resulted in a slightly shorter length of surgery and less exposure to radiation than use of a fluoroscopic monitor in the OR.

Scientists Develop New Way to Identify the Sex of Sea Turtle Hatchlings

Scientists have developed a new minimally invasive technique that greatly enhances the ability to measure neonate turtle sex ratios. This is the first time that differences in sex-specific protein expression patterns have been identified in blood samples of hatchlings with temperature-dependent sex determination. The technique is a crucial step in assessing the impact of climate change on imperiled turtle species and will enable more accurate estimates of hatchling sex ratios at a population level and on a global scale.