Nanoparticles

Researchers have developed a new nanotherapy to enhance the effectiveness of a type 1 diabetes treatment. The innovation packages immunosuppressive drugs into nanoparticles to reduce the likelihood of a body rejecting newly transplanted islet cells.

Although silver is highly effective at killing bacteria, it can also be toxic to humans in large amounts. That's where a new wound dressing is intended to come in, as it only releases its silver payload when infections are present.

For people with particularly cavity-prone teeth, daily brushing and flossing aren't always enough. A new treatment could help, as it uses tiny particles known as nanozymes to break down plaque and kill cavity-causing bacteria.

A decent chunk of energy usage goes towards lighting, so scientists at MIT are developing a new kind of passive lighting – glow-in-the-dark plants. In the latest experiments, the team made them glow brighter without harming their health.

Researchers have developed particles called dendrimers that are covered in tiny tentacles, arranged in patterns too small for the immune system to detect. These could be handy for delivering drugs or camouflaging implants to prevent rejection.

When it comes to contraceptives, men typically have to remember to use a condom, or get a difficult-to-reverse vasectomy. There may soon be a new option, however, in the form of injected particles that are magnetically guided to the testes.

Radiotherapy is one of the best treatments we have against cancer, but there's room for improvement. Now, researchers in Japan have developed nanoparticles that can penetrate tumors and kill them from within, after being activated by external X-rays.

The earlier cancer is detected, the better. MIT scientists have developed a diagnostic system that can be performed as a urine test to detect the presence of cancer, and if a positive is returned, a follow-up test can locate where it is in the body.

The European Food Safety Authority has reclassified food coloring E171 after an expert panel concluded it “can no longer be considered safe as a food additive.” The announcement comes after years of research indicated the additive may be unsafe.

An oral pill would be much easier for diabetics than daily insulin injections. An experimental new method for packing insulin into capsules helps it survive the trip through the stomach to the bloodstream, and releases its payload only when needed.

When a patient is receiving medication, it can be difficult to determine how much of the drug is actually making its way into their bloodstream. A new subdermal "tattoo" could help, thanks to its color-changing gold nanoparticles.

While there are glasses that help compensate for red-green color blindness, the lenses often can't be shaped to users' prescriptions. That's why scientists are developing a new type of corrective contact lens, inspired by old gold-containing glass.