From a spit test for cancer to a shot that helps your body re-grow nerves along your spinal cord, these new advances in the world of medicine blur the line between biology and technology—to help restore, improve and extend our lives.
By: Iltifat Husain, MD; Timothy Aungst, PharmD; Tom Lewis Introduction: At iMedicalApps, our goal is to review apps from a Physician standpoint so we can help healthcare providers navigate the growing number of available medical and healthcare apps.
I.B.M. has just announced the world’s grandest simulation of a brain, all running on a collection of ninety-six of the world’s fastest computers. Are full-scale simulations of human brains imminent, as some media accounts seem to suggest?
Are the demonstrations now circulating among trade shows and conventions niche gimmicks, high-wire circus acts, representing the limits of current hardware tweaked to the extreme after much practice and patience, or do they flow surely and easily...
An interdisciplinary team of researchers at Vanderbilt University have developed a way to combine the photosynthetic protein that converts light into electrochemical energy in spinach with silicon, the material used in solar cells, in a fashion that produces substantially more electrical current than has been reported by previous “biohybrid” solar cells.
“This combination produces current levels almost 1,000 times higher than we were able to achieve by depositing the protein on various types of metals. It also produces a modest increase in voltage,” said David Cliffel, associate professor of chemistry, who collaborated on the project with Kane Jennings, professor of chemical and biomolecular engineering.
Physicians are incorporating iPads and other mobile devices into their practices at an unprecedented pace. A 2012 study conducted by Manhattan Research, involving 3015 U.S. practitioners in over 25 specialties, revealed ...
"Scientists have engineered bacteria that are capable of sacrificing themselves for the good of the bacterial population. These altruistically inclined bacteria, which are described online in the journal Molecular Systems Biology, can be used to demonstrate the conditions where programmed cell death becomes a distinct advantage for the survival of the bacterial population.
"We have used a synthetic biology approach to explicitly measure and test the adaptive advantage of programmed bacterial cell death in Escherichia coli," said Lingchong You, senior author of the study and an associate professor at the Department of Biomedical Engineering, Duke University, and the Duke Institute for Genome Sciences & Policy. "The system is tunable which means that the extent of altruistic death in the bacterial population can be increased. We are therefore able to control the extent of programmed cell death as well as test the benefits of altruistic death under different conditions." The lead author of the study is Yu Tanouchi, a graduate student in the Department of Biomedical Engineering. Anand Pai and Nicolas Buchler also contributed to the work.
Scientists have known for some time that programmed cell death can be linked to the response of bacteria to stressful conditions, for example starvation of amino acids or the presence of competitor molecules. However, it is not clear why cells should choose to die under such conditions since it gives them no immediate advantages. Some researchers have suggested that programmed cell death allows cells to provide benefits to their survivors but until now it has been difficult to test this directly in experiments..."