Digital Tbucket Tank (DTT)

Will humans also benefit from darkfield CT?

German researchers have developed a device that hopes for the use of the so-called Dark field computed tomography (CT) in clinical application on humans. If dark field could be used successfully in diagnostics, CT scans would provide much more detailed information than today.

The CT used X-raysto get pictures. The device collects information about the absorption of radiation in different tissues. The data collected in this way is then analyzed by computer software, which creates readable images from it. Darkfield CT can provide additional useful information as it allows the measurement of properties of the X-rays allows that at the current tomography are not taken into account.

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"Hairy" cellulose could reduce side effects of chemotherapy

A new Nanomaterial can "stray" chemotherapeutic molecules intercept before they can damage healthy tissue. Therefore, there is hope that the side effects of chemotherapy both during and after treatment. The main component of the nanomaterial are "hairy" nanocrystals made of cellulose. The developers claim that 1 gram of such crystals is more than 6 grams of commonly used chemotherapy drug doxorubicin (DOX) can capture. This makes it 320 times more potent than previous DNA-based alternatives.

The taking of Cancermedication brings with it a whole range of side effects, such as B. hair loss, the development of anemia and jaundice. Scientists are trying to minimize these effects by looking for ways to increase the concentration of the Blut circulating chemotherapy drugs. Among the proposed solutions are the use of catheters with special resins or the introduction of with DNA coated magnetic nanoparticles into the body.

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Killing bacteria with lasers. Light copes with antibiotic-resistant pathogens

The world is facing a growing crisis Antibiotic resistance faced. The excessive use of Antibiotics in medicine, the food industry and in cosmetics leads to the occurrence of antibiotic-resistant bacteria. The penetration of antibiotics into the environment, with concentrations in some rivers exceeding safe levels by 300 times, forces the pathogens to continuously develop antibiotic resistance. Hundreds of bacterial antibiotic resistance genes have even been discovered in the intestines of children. Without new antibiotics or other solutions, the scenario of people dying again from common infections or currently harmless diseases becomes real.

A strategy outside of the chemical repertoire is use physical methods such as ultraviolet light, gamma radiation, or heat. While these methods are effective in inactivating pathogens, they cause severe tissue damage and therefore cannot be used in clinical practice.

It is for this reason that some scientists are interested in this visible light. At low intensity it is gentle on the tissue and at the same time has the ability to inactivate bacteria, viruses and other pathogens. Specialists studying this problem are especially interested in Femtosecond laserthat emit ultrashort light pulses, the duration of which is specified in femtoseconds (1 femtosecond is 1/1 000 000 000 000 000 second).

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Spread of brain tumors explained using principles of fluid physics

Josef Käs from the University of Leipzig and Ingolf Sack from the Charité-Universitätsmedizin Berlin have shown that the spread of Brain tumor cells depends on both their physical and biomechanical properties. According to the researchers, a small change in the elasticity of glioma cells - the most dangerous brain tumor - significantly changes its ability to metastasize.

Sack is a chemist and Käs is a physicist. Both specialize in cancer research, but from different perspectives. Sack studies the mechanical properties of fabrics and has the technology of Magnetic resonance elastography developed a combination of low frequency vibrations and Magnetic resonance. It is used to track the progress of diseases. Käs, on the other hand, works with one optical trap, in which soft miniature objects such as cells can be deformed with the help of lasers to create their elasticity and to investigate deformability.

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Congratulations to Silent High-Tech Solutions - SOTOS

Digital Think Tank warmly congratulates the StartUp Silent Ht Solutions under the leadership of PD Dr. Martin Friedrich for the third prize in the “Starter Prize 2021”! We wish you continued success with the innovative product. For those who want to see a short sketch of the project, here is a video:.


Click here for the video

Electronic plasters for monitoring bones

A team of researchers from the University of Arizona developed a super-thin wireless device that works permanently with the Bone surface merges. A new electronic circuit solution of this kind, the so-called Osseo-Surface electronics, is in an in Nature Communications. published article.

The outer layers of the bone are renewed in the same way as the outer layers of the skin. So if a traditional glue was used to attach something to the bone, it would fall off after a few months. That is why the co-author of the study, John Szivek from the BIO5 Institute, developed an adhesive that Calcium molecules contains, the atomic structure of which is similar to that of bone cells. The chip is very thin - as thick as a piece of paper - so it doesn't irritate the muscle tissue that comes into contact with the bones.

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Cells SimCity

This is what a human cell looks like up close. The unusual picture was from the NASA recorded with the help of cryo-electron microscopy. NASA has got us used to breathtaking images from the cosmos. Edited and colored images of distant nebulae and galaxies have always caught the imagination. This time, however, the agency associated with outer space helped create an image of one of the smallest objects that surrounds us - the cells of our body

Image source: Digizyme / NASA / Stanford University

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An unusual feature of the human brain. We have an amazingly low density of ion channels

Scientists at MIT were amazed to find that compared to other mammals, human neurons have a lower density of ion channels than one would expect. Ion channels generate the electrical impulses through which Neurons communicate. This is another amazing observation about the structure of the Brain.

Scientists hypothesize that because of the lower density of ion channels, the human brain has evolved to work more efficiently and save energy for other processes required to perform complex cognitive tasks. If the brain can save energy by reducing the density of ion channels, it can use the saved energy for other processes, said Professor Mark Harnett of the McGovern Institute for Brain Research on MIT.

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