Diabetic retinopathy is a complication of diabetes mellitus that can eventually lead to blindness.
At the University of British Columbia, researchers in the Faculty of Pharmacuetical Science and the Department of Mechanical Engineering have developed a novel device that will make drug treatment for diabetic retinopathy safer and more effective. The device, no larger than the head of a pin, consists of a sealed reservoir made of flexible polydimethylsiloxane that is implanted behind the eye. Part of the reservoir’s flexible membrane is magnetic; an electric field applied to the device causes the magnetic membrane to deform and release a controlled amount of drug out of a small hole. An advantage of this device is that it requires no batteries or electricity. Early lab tests using the drug doxetaxel have shown that the device can consistently deliver a suitable dosage without breaking or leaking after 35 days and maintain pharmacological activity of the docetaxel for over 2 months.
Click HERE to read the full paper.
The Workshop is devoted to the most recent development in ferrofluid research. This covers all classical areas of ferrofluid research as physico-chemistry, microstructure, numerical simulations, ferrohydrodynamics, heat and mass transfer, engineering and biomedical applications etc. Moreover, magnetorheological fluids and composites are traditionally among the topics of the workshop.
September 28-30, 2011, Benediktbeuern, Germany
Offering the latest information in magnetic nanoparticle (MNP) research, this comprehensive volume reveals the in-depth knowledge behind this highly important and emerging area of nanotechnology. It covers the synthesis and characterization of MNPs, the biofunctionalization of MNPs, and the biomedical and clinical applications of this technology including using MNPs in diagnostic MRIs, gene delivery, and the treatment of cancers. Balancing clinical applications with the underlying theory and foundational science behind these new discoveries, this book stimulates those entering the field as well as practicing engineers toward new research and further groundbreaking developments.
The book will be release January 25, 2012
Submission of Abstracts: October 4, 2011
March 15-16, 2012, Lübeck, Germany
Aeon Scientific is interested in finding a distributor; for information, please contact Dominik Bell by email.
Magnetics is a trade journal for technical professionals who integrate or utilize magnetic technologies in their products and applications, and for technical and management professionals in the magnetics industry.. The magazine is published quarterly in the spring, summer, fall and winter.
The summer edition has been released and is available in a searchable digital format
An unusually unsymmetrical organometallic complex made up of an erbium atom sandwiched between two different aromatic hydrocarbon rings exhibits unique magnetic behavior, a new study shows. This complex could become a prototype for further development of single-molecule magnets (SMMs), which are being sought for applications such as high-density information storage and quantum computing.
Conventional magnets rely on the collective behavior of the unpaired electron spins of millions of individual metal atoms in a bulk material. SMMs, on the other hand, individually exhibit magnetlike behavior. A magnetic device made with these complexes, each storing a bit of data, could hold thousands of times more information than current storage devices.
Most SMMs are based on cluster compounds with multiple metal-ion cores such as Mn12O12, but only about 10 examples of single-metal-ion SMMs are known. A research team led by Song Gao and Bing-Wu Wang of Peking University, in China, has synthesized and studied the magnetic properties of a new type: an erbium cyclooctatriene pentamethylcyclopentadiene complex (J. Am. Chem. Soc., DOI: 10.1021/ja200198v).
Researchers at the Consejo Superior de Investigaciones Cientificas (CSIC) have developed a novel atomic force method called bimodal force microscopy to simultaneously detect short and long-range forces of different nature. The method is applied to image protein-based magnetic particle carriers in air and liquid with a 5 nm spatial resolution.
The CSIC team has discovered a new nanomechanical process based on the coupling of two resonances of the force microscope microcantilever to identify and separate short- and long-range interactions. The coupling is mediated by the nonlinear character of the tip-surface forces. The technique enables the detection of a minimum magnetic moment around 50 µB in a ferritin molecule with an estimated size of 5 nm. It reaches a lateral magnetic resolution below 7 nm in liquid.
The team presented its work in the journal Nanotechnology.
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