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Scientists investigate zinc oxide nanostructures for biomedical applications

Nanotechonology, the field of science that manipulates objects at atomic or molecular level, is tout to be the science of the future. Researchers across the globe are working rigorously to tapthe potential this possesses. In a recent multinational collaborative study, researchers from the Indian Institute of Science(IISc), Bangalore, the Heriot-Watt University, Edinburgh, UK, and the Georg-August-Universität, Göttingen, Germany, have tried exploring the biomedical applicability of zinc oxide (ZnO) nanostructures. The results of this study have opened up novel possibilities in nanoscience research, especially pertaining to the field of biomedicine.

Towards a Clearer Picture in Biomedical Imaging: An Improved Algorithm for Photo Acoustic Tomography

In a collaborative study between the Indian Institute of Science (IISc), Bangalore, and the University of Twente, The Netherlands, researchers have designed a new algorithm for image recovery in Photoacoustic Tomography (PAT). PAT is an important non-invasive biomedical imaging technique where the optical contrast rendered by laser beams and the superior resolution of ultrasound waves are used to study biological tissues. The new algorithm works better with higher accuracy as compared to the conventional ones in use today.

Killing Cancer with a Light Saber!

A team at IISc, Bangalore has successfully developed a novel technique to target and destroy cancer cells through multiple actions.

As a group of diseases, cancer affects over 7 lakh people every year in India alone and kills majority of those that are affected. Cancer occurs when normal cells go rogue – tweaking certain functions that makes it easier for the cancerous cells to multiply and invade normal tissues, thereby affecting the organs’ functions. The current treatment for cancer involves radiation, chemotherapy and occasionally surgery, all aimed at killing the cancerous cells. However, these therapies can, at times, be inaccurate, killing a large number of healthy cells too.

A Novel Fabrication Technique for Morphable Displays and Profilometers

A team of scientists from the Indian Institute of Science, Bangalore have recently demonstrated the self assembly of a 2-D array of high aspect ratio, electrically conductive sharp tips fabricated on a soft, stretchable and bendable material by using capillary forces. The patented technology was developed by Ganapathy Saravanavel, Karthik Raghunandan and Prof. Sanjiv Sambandan at the Department of Instrumentation and Applied Physics at IISc.

Rapid imaging strategy puts woes of developmental biologists in the past

Developmental biologists are often required to study embryogenesis in different stages and acquire this information by imaging their samples at periodic intervals. These samples are commonly labeled with fluorescent dyes which emit a specific wavelength of light after excitation with a specific wavelength of light source, such as a laser. Though this is a universal practice, the dyes are often easily photobleached due to excessive exposure to light. This results in the loss of signal intensity and a high background (non-specific signals arising out of autofluorescence), which ultimately limits the quality of images.

A breakthrough in Atomic Force Microscopy

Scientists at the Indian Institute of Science, Bangalore, have developed a way to efficiently replace and then reuse the “tips” of an Atomic Force Microscope, thus making it more versatile and time saving.

Flexible Electronics Lab at IISc

Clothes that can monitor body functions, displays that can bend and stretch, and a plastic sheet for the visually challenged, with image sensors on one side and braille on the other. These are not devices out of science fiction any more, as the field of 'flexible electronics' is advancing at a rapid pace.

This Ultralight Foam Might Save Your Life

Nitrogen dioxide is toxic to humans when inhaled. Unfortunately, our noses get anaesthetised when exposed to low levels of nitrogen dioxide. This prevents us from sensing the otherwise acrid gas, creating a possibility for overexposure with harmful effects on health. This may lead to poisoning of the lung, which in some cases might prove to be fatal.

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