Watch out graphene; something's coming to eat your supermaterial lunch. Nanocellulose is poised to be the kevlar-strength, super-light, greenhouse gas-eating nanomaterial of the future. And the best part? It's made by nothing but algae.SE
Don't forget to take part and be visble on the ongoing nanomedicine worldwide map! We have now implemented an even shorter version (1 minute) for actors who just want to add their dot in this nanomedicine landscape!
AZoNano - The A to Z of Nanotechnology. March 29 ... Their research will help future scientists and innovators develop nano-sized machines that could be useful in electronics, computing, manufacturing and health care.
Foster Corporation, a leader in custom polymer compounds for medical devices, now offers nano-reinforced composites for minimally invasive devices, such as catheters, with reinforcement loadings up to 30% by weight.
Scientists from Cambridge UK have generated holograms from carbon nanotubes for the first time, which could lead to much sharper holograms with a vastly increased field of view.
The researchers from the University’s Centre of Molecular Materials for Photonics and Electronics (CMMPE) have harnessed the extraordinary conductive and light scattering abilities of these tubes – made from several sheets of carbon atoms rolled into a cylinder – to diffract high resolution holograms. Carbon nanotubes are one billionth of a metre wide, only a few nanometres, and the scientists have used them as the smallest ever scattering elements to create a static holographic projection of the word CAMBRIDGE.
Many scientists believe that carbon nanotubes will be at the heart of future industry and human endeavour, with anticipated impact on everything from solar cells to cancer treatments, as well as optical imaging. One of their most astonishing features is strength – about 100 times stronger than steel at one-sixth the weight.
The work on using these nanotubes to project holograms, the 2D images that optically render as three-dimensional.
The multi-walled nanotubes used for this work are around 700 times thinner than a human hair, and grown vertically on a layer of silicon in the manner of atomic chimney stacks. The researchers were able to calculate a placement pattern that expressed the name of this institution using various colours of laser light – all channelled out (scattered) from the nano-scale structures.
Discover how to streamline your innovation cycle and drive better, faster results with Materials modeling and simulation for Nanotechnology. This webinar will focus on Materials Studio, a comprehensive nano materials ...
Stem cells entering heart can be tracked with nano-'hitchhikers,' scientists say. BY BRUCE GOLDMAN. David Miklos. Sam Gambhir. The promise of repairing damaged hearts through regenerative medicine — infusing stem ...
Advanced Healthcare Materials Special Issue: Future of Nano- and Microscale Materials for Healthcare. Rate this: Your network may benefit from this too. Share to other users who may find this useful: Like this: Like Loading.
RSS Feed. Nano News Feed ... increased, due to their properties and despite their high cost and taking into account the fact that the current price of nanotextiles in the global market is the only inferior to the cost nanoelectronics and nano drugs.
On the other hand, nanotechnology raises many of the same issues as with any introduction of new technology, including concerns about the toxicity and environmental impact of nano materials, and their potential effects on global economics, as well...
Certain drugs are toxic by nature. For example, anti-cancer drugs developed to kill diseased cells also harm healthy ones. To limit the side effects of chemotherapy, it would be a great step forward if it were possible to release a drug only in the affected area of the body. In the context of the National Research Programme "Smart Materials" (NRP 62) - a cooperation between the SNSF and the Commission for Technology and Innovation (CTI) - researchers of ETH Lausanne, the Adolphe Merkle Institute and the University Hospital of Geneva have discovered a method that might represent an important step towards the development of an intelligent drug of this kind. By combining their expert knowledge in the areas of material sciences, biological nanomaterials and medicine, they were able to prove the feasibility of using a nanovehicle to transport drugs and release them in a controlled manner.
This nanocontainer is a liposome, which takes the shape of a vesicle. It has a diameter of 100 to 200 nanometers and is 100 times smaller than a human cell. The membrane of the vesicle is composed of phospholipids and the inside of the vesicle offers room for the drug. On the surface of the liposome, specific molecules help to target malignant cells and to hide the nanocontainer from the immune system, which might otherwise consider it a foreign entity and seek to destroy it. Now the researchers only needed to discover a mechanism to open up the membrane at will.
This is exactly what the researchers succeeded in doing (*). How they did it? By integrating into the liposome membrane superparamagnetic iron oxide nanoparticles (SPION), which only become magnetic in the presence of an external magnetic field. Once they are in the field, the SPION heat up. The heat makes the membrane permeable and the drug is released. Researchers proved the feasibility of such a nanovehicle by releasing in a controlled manner a coloured substance contained in the liposomes. "We can really talk of nanomedicine in this context because, by exploiting superparamagnetism, we are exploiting a quantum effect which only exists at the level of nanoparticles," explains Heinrich Hofmann of the Powder Technology Laboratory of EPFL. SPION are also an excellent contrast agent in magnetic resonance imaging (MRI). A simple MRI shows the location of the SPION and allows for the release of the drug once it has reached the targeted spot.
By cloaking nanoparticles in the membranes of white blood cells, scientists at The Methodist Hospital Research Institute may have found a way to prevent the body from recognizing and destroying them before they deliver their drug payloads.
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