Category Biology/Biotechnology

Nanotechnology: Nanoparticles as weapons against Cancer

The amorphous nanoparticles dissolve very efficiently in the cell. Source: von Schirnding et al., Chem 2020
The amorphous nanoparticles dissolve very efficiently in the cell. Source: von Schirnding et al., Chem 2020

Researchers have developed a novel type of nanoparticle that efficiently and selectively kills cancer cells, thus opening up new therapeutic options for the treatment of tumors. Many chemotherapeutic agents used to treat cancers are associated with side-effects of varying severity, because they are toxic to normal cells as well as malignant tumors. This has motivated the search for effective alternatives to the synthetic pharmaceuticals with which most cancers are currently treated...

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COVID-19 Virus enters the Brain, research strongly suggests

Illustration of a storm in your brain from COVID-19

The S1 protein likely causes the brain to release inflammatory products causing a storm in the brain, researchers said. Alice Gray

A new study shows how spike protein crosses the blood-brain barrier. The SARS-CoV-2 virus, like many viruses before it, is bad news for the brain. In a new study, researchers found that the spike protein, often depicted as the red arms of the virus, can cross the blood-brain barrier in mice. The spike proteins alone can cause brain fog. Since the spike protein enters the brain, the virus also is likely to cross into the brain.

In a study published Dec.16 in Nature Neuroscience, researchers found that the spike protein, often depicted as the red arms of the virus, can cross the blood-brain barrier in mice.
This strongly suggests that SARS-CoV-2, the cause ...

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Developing Smarter, Faster Machine Intelligence with Light

Massively parallel amplitude-only Fourier neural network
A massively parallel amplitude-only Fourier neural network

Researchers at the George Washington University, together with researchers at the University of California, Los Angeles, and the deep-tech venture startup Optelligence LLC, have developed an optical convolutional neural network accelerator capable of processing large amounts of information, on the order of petabytes, per second. This innovation, which harnesses the massive parallelism of light, heralds a new era of optical signal processing for machine learning with numerous applications, including in self-driving cars, 5G networks, data-centers, biomedical diagnostics, data-security and more.

Global demand for machine learning hardware is dramatically outpacing current computing power supplies...

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Oral Contraceptive Pills protect against Ovarian and Endometrial Cancer

oral contraceptive pills
In the current study, the scientists compared the incidence of breast, ovarian and endometrial cancers between women that had used oral contraceptive pills and never users.
Photograph: Matton

A comprehensive study from Uppsala University, involving more than 250,000 women, shows that oral contraceptive use protects against ovarian and endometrial cancer. The protective effect remains for several decades after discontinuing the use. The study is published in the journal Cancer Research.

Ovarian and endometrial cancer are among the most common gynaecological cancers, with a lifetime risk of just over 2 per cent. Endometrial cancer is slightly more common but as it has clearer symptoms and is therefore often detected at an early stage, the mortality rate is low...

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