Nanoparticles

A new technique using piezoelectric nanoparticles that are activated via bursts of ultrasound has shown promise as a wire-free way to stimulate the brain. It could be used to treat Parkinson's disease and other brain-based disorders.

Researchers have developed a new open-source program that can convert drawings or digital models into nanoscale sculptures made of DNA. In tests, the system nailed rounded objects like vases and bowls.

While anti-fog sprays work to a certain extent, warming a glass surface is a better way of keeping it fog-free. A new coating material is designed to do so, and it utilizes light-absorbing gold nanoparticles instead of electricity.

Immune suppression can help relieve symptoms of autoimmune diseases, but it can cause complications. A new nanoparticle therapy selectively targets problematic immune cells, and was able to significantly delay and even prevent arthritis in mice.

Probiotic bacteria can’t help improve gut health if they don’t survive to the intestines. Scientists have now kitted out good bugs with protective armor and backpacks loaded with molecules that can help them treat inflammatory bowel diseases (IBD).

Brain cancer is one of the most insidious forms of the disease, but a new wireless device could help improve survival times. When implanted between the skin and skull, the device uses infrared to heat up gold nanoparticles to kill cancer from within.

Getting cancer drugs to the right place in the right quantities is a perpetual problem for medical scientists, but a group from University of California, Los Angeles has developed a new drug delivery system to address the problem.

Researchers have created a new mRNA vaccine for cancer that’s designed to carry its cargo to the lymph nodes rather than the liver. Tests in mice showed significant inhibition of the tumors, with complete remission in a decent percentage of cases.

Glioblastoma is one of the most deadly forms of cancer, often returning with a vengeance after it's removed. A newly developed immunity-boosting hydrogel could be injected into the brain after surgery to clear out remaining cancer stem cells.

Like many menial tasks, there may soon be a way to outsource brushing your teeth to robots. A new system of microrobots can change shape to form bristles or floss, and don’t just brush plaque away but release antimicrobials to kill bad bacteria.

The blood-brain barrier keeps your brain safe from toxins, but frustratingly it also keeps important drugs out. MIT researchers have now demonstrated an accurate new model of how this barrier works, which should enable new brain cancer treatments.

For some time now, antimicrobial bioactive glass has been put forward for use in applications such as medical implants, hospital surfaces and wound dressings. Now, scientists report they have boosted its bacteria-killing effect by over 100 times.