A new technology has taken birth for the optical systems and the diagnostic devices. The Electrical and computer engineers from the University of Wisconsin have developed the narrative independent lenses with captivating features. Here is an abstract from the release: Incorporating hydrogels that respond to physical, chemical or biological stimuli and actuate lens function, these liquid microlenses could advance lab-on-a-chip technologies, optical imaging, medical diagnostics and bio-optical microfluidic systems. Jiang, a University of Wisconsin-Madison assistant professor of electrical and computer engineering; David Beebe, a professor of biomedical engineering; Liang Dong, a postdoctoral researcher; and Abhishek Agarwal, a doctoral student, describe the technology in the Aug. 3 issue of the journal Nature. At this size – hundreds of microns up to about a millimeter – variable focal length lenses aren’t new; however, existing microlenses require external control systems to function, says Beebe. “The ability to respond in autonomous fashion to the local environment is new and unique,” he says. In a lab-on-a-chip environment, for example, a researcher might want to detect a potentially hazardous chemical or biological agent in a tiny fluid sample. Using traditional sensors on microchips is an option for this kind of work – but liquid environments often aren’t kind to the electronics, says Jiang. Fabricating lenses is a straightforward, inexpensive process that takes just a couple of hours. The real advantage, however, is their autonomous function, says Jiang. “That forms a universal platform,” he says. “We have a single structure and we can put different kinds of hydrogels in and they can be responsive to different parameters. By looking at the outputs of these lenses, I know what’s going on in that location.”
The scientists at the Argonne National Laboratory claim to have developed a novel type of Biochip based on a somewhat old technology dubbed polymerase chain reaction. The lab-on-a-chip is expected to detect infectious disease strains in fewer than 15 minutes while testing protein arrays and in around two hours when testing nucleic acid arrays. Every biochip features up to thousands of gel drops with each around the width of a human hair. Schabacker said: The array of gel drops can be tailored to detect specific strains of infectious diseases or other biological organisms. Each drop can detect trace quantities of the agents for which they are specific. The biochip system will be quite helpful for rapid diagnosis for diverse diagnostic needs.
Now, if I say that the latest in high-tech diagnostics is simply paper, you guys will laugh at me. But, I must tell you that it’s absolutely right. Researchers at Harvard University have developed a diagnostic paper that use millimeter-sized channels to speedily, inexpensively, and accurately perform multiple biological tests. The existing techniques of lab analysis are too much of complication for emergency immediate diagnosis. The new prototype can be employed to make quite a lot of biological tests simultaneously on a single drop. The good part of the breakthrough is that these papers are not tainted by dust, dirt, or plant materials, thanks to the non-absorbing tendency of the paper to such particles.
A powerful addition to the rapidly growing HD endoscopic and arthroscopic camera market is the new 3-CCD HD camera. Unveiled by Smith & Nephew’s Endoscopy Division, the 560 Series HD Camera has been designed to provide high-definition resolution in the complete image chain right from the video laparoscope, camera head and the control unit to the monitor. This consistency in resolution helps in achieving clearer and highly detailed surgical images. A trend-setter in this category, the 560 D Series will help doctors perform better diagnostics during surgery leading to better surgery results. The camera has raised the bar higher for arthroscopic and endoscopic visualization with the best-in-class picture detail, color and field depth. It goes without saying that the image quality in any visualization system relies on its components. Better the components, better the image quality. The design of the 560 Series is such that it can interface with Smith & Nephew’s Endoscopy’s CONDOR Control System and the 660HD Image Management System for Digital Operating Rooms. The CONDOR Control System provides medical staff the ease of controlling the operative environment from a single panel and the 660 HD IMS allows the capture and storage high-definition surgical images. These images can be archived with the patient’s medical history for future use. All these ensure that the entire component structure of the visualization system is top-notch and there is no compromise on the image quality. Via: medgadget