A Scientific Research Vault
It has always been believed that DNA is the storehouse of characteristics that pass-on from one generation to the next. However, there are other materials in a cell as well that can be attributed to passing on the hereditary traits, claimed a set of researchers at University of Edinburgh.
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In an attempt to create a ‘body on a chip’, scientists are working towards fabricating minute working organs of human body on a set of inter-related plastic chips. They have already developed fingertip-sized lungs, guts and livers on the chips. For instance, researchers at Harvard University’s Wyss Institute are revamping ‘bone marrow on a chip’ for studying the effect of radiation.
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In an interesting research in the field of microbiology, experts at the University of Stanford have tried to explore the process that might lead to eternal youth by maneuvering the key that is responsible for making human cells old.
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Experts believe that micromachines or nanobots use in the field of medicine can change the way some of the medical conditions are diagnosed and treated. Using these nanobots, medical payload would be sent directly to the specific injury site. Until now the researchers have achieved to test such micromachines in cell samples under laboratory conditions.
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Researchers at the Weizmann Institute of Science, Israel have come up with a silicon chip that can mimic a human cell in producing proteins from DNA. The most basic function of cell is to produce proteins after receiving instructions in the form of DNA sequences. Other genes determine production of the quantity of churning out protein by a complex process involving feedback loops.
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In order to replicate ecosystem and chemical origin of life, Stanley Miller, under the supervision of Harold Urey, performed the breakthrough Urey-Miller experiment in 1952. The experiment initiated more than 20 major molecules that form the integral part of life. A team of researchers at Stanford believes that they can do one-step better.
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Though red meat is one of the richest source of a powerful antioxidant called, lipoic acid, apart from harboring other essentials like iron, creatine, minerals and vitamins, findings from various studies suggest that red meat consumption is linked to significant health risks such as an increased chance of developing cardiovascular disease and even bowel cancer.
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Giant web search engine, Google is expanding its business in different technological areas, investing in research program to develop driver-less cars, goggle glasses, contact lenses, delivery drones, robots, providing internet facilities via balloons to name a few. Now Google is expanding into the field of advance medicine. With an aim of developing nanoparticles that would be delivered in the form of a pill in aiding cancer detection and other ailments, the big G unveiled its latest project called the “Nanoparticle Platform.
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In Frankenstein effort, Gregoire Courtine, a researcher at the École Polytechnique Fédérale in Lausanne, Switzerland, has developed a process that has helped a paralyzed rat in walking with a precise cadence. The neuroscientist has employed electronics to reinstate realistic movements to the disabled animal. With an aim of resurrecting life in the paralyzed limbs of people, the researcher has zapped spinal cords with electrical pulses. These undulations will substitute the commands being sent by brain in normal condition however, the signals are disrupted with an injury in the spinal cord.
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Newly divided cells of the human body have an ability of replenishing certain organs including lungs, skin and liver consistently. However, majority of these cells have an expiry date, which means, they cannot perform the function throughout, since each division also corresponds to shortening of chromosomes. Upon reaching a certain stage telomere, the area of repetitive nucleotide sequences situated at the peripheral of each chromatid, stops the dividing process. This leads to degeneration of organs and tissues and eventually aging. However, in the presence of telomerase, an enzyme that rebuilds…
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Last month we witnessed MagnetoSperm microrobots for the nanoworld and now research scholars at MIT lab have devised a technology oriented birth control drug delivery system, which can be controlled from the outside. The 20 x 20 x 7 millimeters devise is supposed to be implanted inside the skin somewhere around buttocks, abdomen or upper arm. The mechanism Single implant will last for about 16 years with 30mg of levonorgestrel doling out per day. Levonorgestrel is the same hormone that is used in most of the over the counter contraceptives.…
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Human body is composed of different biological cells. Each cell is unique. Research shows that a sample of biopsied tumor consists of various distinct cells. These cells differ in their rate of proliferation, responsiveness to drugs, potential metastasis and so on. Therefore, it is essential for researchers to understand the behavior of individual cells and then accordingly design therapy and treatments, for which seizing individual cell is very important.
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Nature does not stop us marveling at its splendor be it at macro level or micro scale. There are limitless options to investigate and get inspired. Biomimicry is one such field in robotics, which is completely drenched with nature’s splash. Researchers do not leave any stone unturned when dealing with robos inspired from nature, lately a concept is put forward by experts at the University of Twente, Netherlands. They have taken inspiration from nature’s locomotion at microscale and have combined the process of two micro-scale entities like magnetotactic bacteria and…
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A new initiative by the US military program focuses around treating defense personals from the after effects of being into war. In majority of cases, soldiers who come back from battle zones develop adjustment problems or psychiatric disorders to be more specific. For instance, combatants were diagnosed with “shell shock” during the era of WW I, “battle fatigue” during WW II and in Vietnam War, it was PTSD, post-traumatic stress disorder. Backed up by President Obama’s brain initiative, DARPA has received a funding of $70 million from the US to…
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Parts of any machinery can be replaced, modified or tampered with only when the machine is in an off mode. It is nearly impossible to fiddle around with any operational part while it’s functioning. However, the same principle does not apply for our biological process, especially when we are talking about a nerve cell. This continuous rebuilding without affecting the overall operations has always been neuroscience’s biggest questions. Many theories have been put forward but none of them has ever reached any concrete census. Lately, Eve Marder, the Victor and…
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