Magnetic Carrier Meeting 2014 - A Big Success

June 27, 2014

Our already 10th International Conference on the Scientific and Clinical Applications of Magnetic Carriers took place in Dresden, Germany from June 10-14, 2014. It was a wonderful gathering of more than 330 participants from 41 countries, where we discussed all the different aspects of magnetic nanoparticles and microspheres, how they can be made, used and applied in new and ever more fascinating ways!

Check out all the details at

       http://magneticmicrosphere.com/meeting-tenth

After the meeting, all participants will publish a special issue of magnetic particle related research. Make sure you don't miss the deadline!


Magnetic drive of a medical micro robot in abdominal cavity

July 12, 2014

Prof. Makoto Nokata has developed a new type of medical micro robot which can be driven around in the abdominal cavity using a magnetic force. The motion of the robot, move environment and the pictures from an internal camera were investigated in vivo using a simple prototype. The friction force between the abdominal wall and organs was measured, while the prototype model could be guided by simple magnetic field control. This internal micro robot might be a useful medical tool.

There are also a couple of movies about this magnetically directed robot on Prof. Nokata's website.


NIST Chip Produces and Detects Specialized Gas for Biomedical Analysis

June 29, 2014

A chip-scale device that both produces and detects a specialized gas used in biomedical analysis and medical imaging has been built and demonstrated at the National Institute of Standards and Technology (NIST). The new microfluidic chip produces polarized (or magnetized) xenon gas and then detects even the faintest magnetic signals from the gas.

Polarized xenon, with the atoms’ nuclear “spins” aligned like bar magnets in the same direction, can be dissolved in liquids and used to detect the presence of certain molecules. A chemical interaction with target molecules subtly alters the magnetic signal from the xenon; by detecting this change researchers can identify the molecules in a complex mixture. Polarized xenon is also used as a contrast agent to enhance images in experimental magnetic resonance imaging (MRI) of human lungs, but conventional systems for producing and using this gas can be as big as a car.

Researchers from NIST and three other institutions developed the new chip, which might be used to reduce the size and cost of some instruments that, like MRI, rely on nuclear magnetic resonance (NMR). The chip’s sensitive internal detector boosts the response of microfluidic NMR on small samples and eliminates the need for the powerful magnets associated with larger NMR devices such as those used in MRI. The microfabricated chip could be mass produced and integrated easily with existing microfluidic systems.

For more information, check this link.


New Grant Network: Magnetic Hyperthermia and Radiotherapy (RADIOMAG)

May 31, 2014

A new network grant has recently been approved in Europe, the TDCOST Action TD 1402: Multifunctional Nanoparticles for Magnetic Hyperthermia and Indirect Radiation Therapy (RADIOMAG)

The Action aims to bring together and to organise the research outcomes from the different participating network members in a practical way to provide clinicians with the necessary input to trial a novel anti-cancer treatment combining magnetic hyperthermia and radiotherapy, also identifying future research objectives upon appraisal of the obtained results. Feedback between the different working groups here is essential, and is expected that the lifetime of this Action proposal will eventually result in a compendium of best practices for magnetic hyperthermia.

RADIOMAG will generate new and strengthen the existing synergies between technical advances (thermal imaging / MH), new treatment concepts (combined targeting radiosensitisation and magnetic thermotherapy) and biocompatible coating in order to achieve a breakthrough in the clinical application of magnetic hyperthermia. Due to the complexity of this aim, synergies can only be achieved on a longer time frame, by means of workshops, STSMs, joint publications, common Horizon 2020 research proposals and exchange with other COST Actions (e.g. TD1004, TD1205).

http://www.cost.eu/domains_actions/TDP/Actions/TD1402


Guidelines for Dynamic Light Scattering Measurements and Analysis

May 26, 2014

The company Nanocomposix published a very good introduction into particle size measurement with dynamic light scattering (DLS) measurement. After analyzing thousands of nanoparticle samples they have assembled a set of guidelines that can be used to determine how to maximize the quality of your DLS data and, more importantly, how to interpret your results. Check it out here. And if you have more questions, contact them at info@nanocomposix.com or (858) 565-4227 x 2.


World's Smallest Medical Robot

April 18, 2014

The smallest robot worldwide is only a few micrometer long and has been created at ETH Zurich. The robot designed to be steered through the human body forces high design chal-lenges on the researchers in terms of control and power supply. It is inspired by the flagella of the E. coli bacteria, which allows highly efficient locomotion. The metallic replica of the flagella is set in rotation by an external magnetic field, whose direction and intensity can be regulated and adjusted according to the direction the robot should swim. The ETH spin-off Aeon Scientific is currently working on the marketing of the new control technology.


Hydrogel Micro-Robots Developed for Drug Delivery

April 18, 2014

The toxicity of many drugs creates high risk of destroying healthy cells when attempting to treat disease. Scientists at ETH Zurich’s Institute of Robotics and Intelligent Systems (IRIS) have developed a tiny robot about a half-millimeter in diameter that may provide a solution. The robot comprises a star-shaped, bi-layer, soft hydrogel shell that, when closed, forms a sphere and holds tiny magnetic beads inside. When the robot reaches the desired loca-tion, laser irradiation causes the hydrogel to change shape and the capsule to open, delivering the drug. The hy-drogel robot has been tested only in-vitro, but the scientists believe they can miniaturize it enough to test it in ani-mals in the future.


Biosynthesis of Magnetic Nanostructures in a Foreign Organism by Transfer of Bacterial Magnetosome Gene Clusters

April 17, 2014

In nature, magnetosomes—membrane-bound magnetic nanocrystals with unprecedented magnetic properties—can be biomineralized by magnetotactic bacteria, e.g., Magnetospirillum gryphiswaldense . However, these microbes are difficult to handle. Isabel Kolinko, Youming Zhang, Dirk Schüler et al. now were able to transfer a minimum set of genes for the biosynthetic pathway of biomineralization of magnetic nanoparticles from these fastidious microorganisms to Rhodospirillum rubrum, a gram negative proteobacterium. Biomineralization of highly ordered magnetic nanostructures was then possible and might in the future allow for the sustainable production of tailored magnetic nanostructures in biotechnologically relevant hosts. This represents a step towards the endogenous magnetization of various organisms by synthetic biology.

Check out the details in this interesting Nature Nanotechnology 9, 193-197 (2014) paper. It includes an editorial.


1 2 3 4 5 6 7 8 9 10 11 12 13 14 >

For more information, check out our Archives.

Photo of the Month
December 2006


Search this site with the power of
Google
Last Modified: December 09, 2013 - Magneticmicrosphere.com 2013