biosensors

Photonic crystal biosensors detect protein-DNA interactions

harminka — Wed, 24 Sep 2008 06:54:35 -0500

Scientists at the University of Illinois have developed a new class of disposable, microplate-based optical biosensors capable of detecting protein-DNA interactions. Based on the properties of photonic crystals, the biosensors are suitable for the rapid identification of inhibitors of protein-nucleic acid and protein-protein interactions.

Biosensor for measuring stress in cells

harminka — Fri, 16 May 2008 10:29:20 -0500

Cancer, nervous system disorders such as Parkinson’s disease, cardiovascular disorders and old age have one thing in common: Both in afflicted tissue and in aging cells, scientists have observed oxidative changes in important biomolecules.

Biosensing nanodevice to revolutionize health screenings

harminka — Tue, 25 Mar 2008 08:48:57 -0500

One day soon a biosensing nanodevice developed by Arizona State University researcher Wayne Frasch may eliminate long lines at airport security checkpoints and revolutionize health screenings for diseases like anthrax, cancer and antibiotic resistant Staphylococcus aureus (MRSA).

Cellular construction methods emulated

harminka — Thu, 06 Mar 2008 11:03:33 -0600

Not only is our body made of individual organs, our cells themselves are made of tiny organelles, a variety of separate compartments that fulfill different tasks. Such functional, nanostructured systems would also be useful for technical applications, such as biosensors, self-repairing materials, optoelectronic components, or nanocapsules.

Scientists Develop Novel Fluorescent Proteins for Live Cell Imaging, Biosensor Design

harminka — Thu, 07 Feb 2008 11:23:48 -0600

Scientists at Carnegie Mellon University's Molecular Biosensor and Imaging Center (MBIC) have developed new "fluorogen activating proteins" (FAPs) that will become a key component of novel molecular biosensor technology being created at Carnegie Mellon. The FAPs, which can be used to monitor biological activities of individual proteins and other biomolecules within living cells in real time, are described in the February issue of Nature Biotechnology.

Engineering chimeric polypeptides to illuminate cellular redox states

harminka — Thu, 24 Jan 2008 06:27:52 -0600

UIUC interdisciplinary team reports the design of chimeric polypeptides leading to development of noninvasive biosensors for potential application in biomedical research.

Model is first to compare performance of 'biosensors'

harminka — Wed, 02 Jan 2008 13:55:40 -0600

Researchers have developed a new modeling technique to study and design miniature "biosensors," a tool that could help industry perfect lab-on-a-chip technology for uses ranging from medical diagnostics to environmental monitoring.

Researchers measure carbon nanotube interaction

harminka — Wed, 17 Oct 2007 15:35:22 -0500

Carbon nanotubes have been employed for a variety of uses including composite materials, biosensors, nano-electronic circuits and membranes.

New biosensor detects avian influenza virus in minutes instead of days

harminka — Fri, 28 Sep 2007 14:25:34 -0500

Quick identification of avian influenza infection in poultry is critical to controlling outbreaks, but current detection methods can require several days to produce results.

Researchers set new record for brightness of quantum dots

harminka — Wed, 26 Sep 2007 10:15:06 -0500

By placing quantum dots on a specially designed photonic crystal, researchers at the University of Illinois have demonstrated enhanced fluorescence intensity by a factor of up to 108. Potential applications include high-brightness light-emitting diodes, optical switches and personalized, high-sensitivity biosensors.

When biological molecules kiss, new kind of biosensor can tell

harminka — Fri, 21 Sep 2007 03:30:48 -0500

A new and deceptively simple technique has been developed by chemists at Vanderbilt University that can measure the interactions between free-floating, unlabeled biological molecules including proteins, sugars, antibodies, DNA and RNA.

Biosensors to probe metals menace

harminka — Wed, 29 Aug 2007 15:18:43 -0500

Researchers from CRC CARE are pioneering a world-first technology to warn people if their local water or air is contaminated with dangerous levels of toxic heavy metals and metal-like substances.