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ultrasound for diabetes

17.04.2022

An international team of scientists has figured out how short pulses of ultrasound, targeting specific clusters of nerves in the liver, can effectively lower insulin and blood glucose levels in diabetics.

So far, the technique is being tested on humans and is quite complicated, but scientists are confident that they will be able to create portable devices for monitoring blood glucose and insulin levels.

Unfortunately, there are currently very few drugs that actually lower insulin levels. Meanwhile, to maintain the health of patients with diabetes, it is necessary to be able to keep a balance in the level of glucose in the blood. The introduction of insulin reduces its concentration, but too low a glucose content can cause hypoglycemia and lead to death.

Scientists have demonstrated for the first time a unique non-invasive ultrasound technique designed to stimulate specific sensory nerves in the liver. This technology is called Peripheral Focused Ultrasound Stimulation and allows very precise targeting of subtle ultrasonic pulses to specific tissues containing nerve endings.

The study showed that just three minutes of exposure to focused ultrasound each day was enough to maintain normal blood glucose levels in diabetic animals. Human studies are currently underway to see if this method also works in the human body.

But there are many obstacles to the introduction of this technique into clinical practice, beyond the simple proof of its effectiveness. The fact is that the modern ultrasound instruments used to perform this therapy require trained technicians. The researchers suggest that it is possible to create technology to simplify and automate these systems so that they can be used by patients at home, but until it is developed, the widespread use of technology should be forgotten. Ideally, these should be wearable devices that the patient would not feel and could walk with them all the time.

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Flexible Memory 24.02.2012

Korean engineers have developed a new type of non-volatile memory that can be used in computing devices.

Scientists from the Research Institute of Electronics and Telecommunications KAIST in South Korea have created a new type of non-volatile memory based on memristors. Recall that a memristor is an electronic element that changes its resistance when an electric current passes through it. And the property of memristors to maintain a resistance value after the current supply is stopped makes it an ideal means for storing information. The fabrication process and structure of such memristors make it possible to deposit them on a flexible substrate.

Unlike previous similar samples of flexible memory, the new generation memristors are made not from titanium oxide, but from a graphene oxide film. Their use as information storage cells will allow the development of new data storage devices with higher recording density, cheaper production and low power consumption. And the flexibility of the new elements will make it possible to use them in a variety of devices, from household appliances to clothing of the future.

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