Menu

Blog

Page 1885

Oct 6, 2023

How purposeless physics underlies purposeful life

Posted by in categories: biological, physics

Radical theory explains how physics creates all biology’s complexity.

Oct 6, 2023

3D-printed vegan salmon hits the European market

Posted by in category: food

Beyond fish? 3D-printed vegan salmon hits the markets in Europe thanks to foodtech startup Revo Foods.

Oct 6, 2023

Researchers use chicken poop to dope graphene to make a point

Posted by in categories: chemistry, computing

With millions of tons of human waste we could make mountains of graphene microchips :3.


A trio of researchers, two from the University of Chemistry and Technology, Praha 6, the other the University of Toronto, has demonstrated that chicken feces can be used to make graphene a better catalyst. In their paper published in the journal ACS Nano, Lu Wang, Zdenek Sofer and Martin Pumera argue that researchers churning out papers describing newly found dopants for graphene are not contributing to understanding graphene’s electrocatalytic abilities.

Graphene has been found to have conductivity and strength characteristics that make it a desirable material for use in commercial products. Some have suggested it might also make an excellent catalyst if the right dopant can be found. To that end, researchers have been testing various materials as dopants for graphene to find new ways to use graphene. In their paper, Pumera et al. argue that rather than simply testing materials one after another with graphene, researchers might make better use of their time by devising experiments designed to better understand the fundamentals of graphene’s electrocatalytic abilities. To drive their point home, they wondered if any “crap” they tested would work as a possible dopant—to find out, they tested chicken crap. They prepared samples of graphene oxide using two different methods, then combined each with chicken feces—they then used thermal exfoliation on the results to make graphene.

Oct 6, 2023

Laser-fusion experiment squeezes out even more energy

Posted by in categories: energy, physics

Physicists at the National Ignition Facility are learning how to better control crushingly violent “shots”.

Oct 6, 2023

Intel Demos Meteor Lake iGPU 8K60 & SOC Tile E-Core Only 1080P Video Playback Capabilities

Posted by in category: computing

In a new video, Intel has demoed the video playback capability of its Meteor Lake iGPU and its Low-Power E-Cores.

Intel Meteor Lake iGPU Offers Smooth 8K60 Video Playback, 1080P Video Playback Also Possible On SOC Tile’s Low-Power E-Cores

Continue reading “Intel Demos Meteor Lake iGPU 8K60 & SOC Tile E-Core Only 1080P Video Playback Capabilities” »

Oct 6, 2023

12 Tips for Creating a Perfect Architectural Rendering — From the Experts

Posted by in category: futurism

We asked four talented designers for their go-to rendering tips.

Oct 6, 2023

Roundup: VR stroke care training rolled out for NSW ED nurses and more briefs

Posted by in categories: health, virtual reality

Also, Silverchain has adopted Datos Health’s RPM platform as part of its virtual care delivery.

Oct 6, 2023

For the first time scientists observe the creation of matter from light

Posted by in categories: energy, information science

One of the most fascinating implications of Einstein’s famous equation E=mc2 is that matter and energy are interchangeable.

Oct 6, 2023

Potential discovery of a dozen objects beyond Pluto could reveal a new section of the solar system we never knew about

Posted by in category: space

Astronomers may have detected a dozen large objects lurking beyond the Kuiper Belt at the edge of our solar system, suggesting there could be another equally massive, “second Kuiper Belt” hiding beyond the orbit of Pluto.

Oct 6, 2023

Biocompatible focused ultrasound delivers cancer drugs on target

Posted by in categories: biotech/medical, chemistry, nanotechnology

Remote control of chemical reactions in biological environments could enable a diverse range of medical applications. The ability to release chemotherapy drugs on target in the body, for example, could help bypass the damaging side effects associated with these toxic compounds. With this aim, researchers at California Institute of Technology (Caltech) have created an entirely new drug-delivery system that uses ultrasound to release diagnostic or therapeutic compounds precisely when and where they are needed.

The platform, developed in the labs of Maxwell Robb and Mikhail Shapiro, is based around force-sensitive molecules known as mechanophores that undergo chemical changes when subjected to physical force and release smaller cargo molecules. The mechanical stimulus can be provided via focused ultrasound (FUS), which penetrates deep into biological tissues and can be applied with submillimetre precision. Earlier studies on this method, however, required high acoustic intensities that cause heating and could damage nearby tissue.

To enable the use of lower – and safer – ultrasound intensities, the researchers turned to gas vesicles (GVs), air-filled protein nanostructures that can be used as ultrasound contrast agents. They hypothesized that the GVs could function as acousto-mechanical transducers to focus the ultrasound energy: when exposed to FUS, the GVs undergo cavitation with the resulting energy activating the mechanophore.