Conventional rapid diagnostic tests for HIV and other infections are complicated to read and expensive to use. Hence researchers of Columbia University, United States, have developed a small plastic chip based on micro fluidics and nanotechnology which can reliably diagnose HIV and syphilis. Additional tests, for diseases like hepatitis or malaria, could be added to the chip without a significant increase in cost.
Artificial nanoparticles influence the heart rate
Researchers in Germany have shown, for the first time that selected artificial nanoparticles have a direct effect on heart rate and heart rhythm. The scientists tested in an isolated rodent and found that it reacted to commonly used artificial nanoparticles, such as carbon black and titanium dioxide, with an increased heart rate, cardiac arrhythmia and modified ECG values to show that nanoparticles have a clearly measurable effect on the heart.
Nanofiber to regenerate blood vessels
After a heart attack, the regeneration of blood vessels is important for peripheral arterial disease, and to ensure that transplanted organs receive a sufficient supply of blood. Researchers at Northwestern University have created a nanomaterial that could help the body grow new blood vessels.
The nanomaterial is a liquid that, when injected into patients, forms a matrix of loosely tangled nanofibers. Each fiber is covered in microscopic protuberances that mimic vascular endothelial growth factor which is a protein that occurs naturally in the body and causes chemical reactions that result in the growth of new blood vessels.
The new nanomaterial lasts long enough to do its job, and is completely biodegradable once finished. It is assumed that this will result in better motor function and blood circulation than other treatments, but toxicological testing is to be conducted.