Some things are simple just by using current technology and combining them in interesting ways. Problem statement: It is difficult to get an eye test in remote parts of the world where the doctors do not visit or cannot visit. Alternatively, an eye test requires complex instrumentation and is expensive that the Doctor even if…
David Brady of Duke University published a paper in Nature in 2012 (Brady DJ, Nature 486, 386) on 50 Gigapixel camera. The technology was interesting in that it used small camera’s that were coupled through a big lens. This may be a good strategy to make large cameras rather than depend on major lenses and…
Accelerometers are microelectronic devices as discussed in this blog earlier that are commonly used in mobile phones, air bags and cameras. These are mechanical devices that measure piezoelectric, piezoresistive or capacitative based sensors that measure movement of a small weight. However, there is new technology available that uses lasers to measure movement. These are called…
In treatment of cancer, there has been a significant thought in the value of personalized medicine. In general there is agreement that each cancer is slightly different and therapies need to be targeted specific for different patients. However, since each combination of therapy is unique, they have to be customized for the patients. This works…
Biological assays are typically done on cell lines. However, many of the cell lines are so different from the cell systems that are encountered in real life, or in vivo that the results can often be flawed. To be perfectly physiological, scientists use primary human cells harvested from patients are cadavers. These are great systems…
As we browse the web, we realize that each of the websites asks for authentication. So for example, if you are at Google Mail, it asks for entering the name and password combination. Browse to another site like Amazon and they ask for their own authentication. These name and password combinations are tedious to remember…
Bessel beams are beam of laser light that are non-refracting and shaped liked the figure shown. The interesting characteristics about them are couple: 1.They do not diffract. Most light beams diffract and therefore do not make very good targets. 2.Their energy is spread over a larger area and therefore make great beams to work with…
In cell imaging, the most often used proteins are the Fluorescent proteins like (Green Fluorescent Protein}, GFP or many other fluorescent proteins like Yellow-FP, Blue-FP. They are popular because it is possible to express a labeled protein directly inside the cell. Before the discovery of fluorescent proteins, the only method was to express the protein,…
It has been assumed that the developmental disorders in some children are something that they are born with and cannot be changed. The case in point is autism. Though there are many companies working on it there has been not much therapeutic progress. Dr Aditi Shankardass has been pioneering the use of a common EEG…
A stroke is a major cause of death but in non-lethal cases it causes significant damage to the brain. One of the most bizarre one is the locked-in syndrome. This is caused by the lesion to the brain stem ventral pons and was termed the “locked in syndrome” by Plum and Posner in 1966. There…
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