Functioning of Hollographic Microscopy:
The Lens-Free Holographic Microscope generates a holographically reconstructed image. The objects within this image can be brought to focus at any depth after the image capture. This new age microscope does not require and mechanical components and makes image capturing almost automatic.
Bioengineers Design Mobile Phone-microscope to Help Diagnose Diseases
By fitting a 'smart' mobile phone with magnifying optics, bioengineers have created a real 'cell' phone, a diagnostic-quality microscope to help diagnose diseases.
By fitting a 'smart' mobile phone with magnifying optics, bioengineers have created a real 'cell' phone, a diagnostic-quality microscope to help diagnose diseases.
Existing Digital Holographic Microscopy:
These microscopes are unique in a way. They do not record the projected image of an object. What actually happens is that the light wave front information from the object is recorded as a hologram, digitally. The computer then calculates the object’s image from the hologram using a numerical reconstruction algorithm. Hence, a computer algorithm replaces the traditional image forming lens.
Other variants of digital holographic microscopy include interferometric microscopy, optical coherence tomography and the diffraction phase microscopy. In order to obtain amplitude and phase information, reference wave front is used and this is common to all methods of microscopy. A digital image sensor or a photo detector records the image of an object which is formed by a computer. In this method, the essential information is lost and only the intensity information is recorded. This becomes the disadvantage of earlier digital holographic microscopy variants.
Digital holography is mainly applied to light microscopy and electron microscopy. Dennis Gabor developed holography so as to improve the existing electron microscope.
Detecting Tuberculosis: No Microscopes, Just Rats
Researchers have found out that the Gambian pouched rats can smell the tuberculosis bacteria in a sputum sample.
Researchers have found out that the Gambian pouched rats can smell the tuberculosis bacteria in a sputum sample.
Advanced Smartphone Microscope Brings Single-Virus Detection to Remote Locations
Scientists are reporting an advance in smartphone-based imaging that could help physicians in far-flung and resource-limited locations monitor how well treatments for infections are working by detecting individual viruses.
Scientists are reporting an advance in smartphone-based imaging that could help physicians in far-flung and resource-limited locations monitor how well treatments for infections are working by detecting individual viruses.
Top Scientific Splendors and Debacles of the Decade
Critical look at all the top scientific and medical advancements of last decade and their potential impact on the survival of mankind and the future healthcare of the world.
Critical look at all the top scientific and medical advancements of last decade and their potential impact on the survival of mankind and the future healthcare of the world.
