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New ultrasensitive electronic sensor array speeds up DNA detection

Scientists developed a novel electronic sensor array to rapidly detect DNA for disease diagnosis and biological research, with ultrasensitive detection capabilities and cost-effectiveness. The Nanogap Sensor Array technology has the potential to speed up efforts in detecting debilitating diseases such as cancer and infectious viruses.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·JournalJournal of the American Chemical Society·DateAug 26, 2009

Toxin detection as close as an inkjet printer

Researchers at McMaster University developed a method for printing toxin-detecting biosensors on paper using an inkjet printer, utilizing lateral flow sensing technology. The sensors retain enzyme activity for months, making them suitable for monitoring environmental toxins and detecting diseases in remote settings.

SourceMcMaster University·JournalAnalytical Chemistry·DateJul 13, 2009

Bridging the gap in nanoantennas

Researchers control light at nanoscale by adopting tuning concepts from radio-frequency technology, enabling targeted design of biosensors and photodetectors. The discovery bridges the gap between optical and radio frequencies, opening doors for compact and integrated nanophotonic devices.

SourceElhuyar Fundazioa·JournalNature Photonics·DateApr 19, 2009

Nano-tetherball biosensor precisely detects glucose

A team of researchers from Purdue University has developed a precise biosensor for detecting blood glucose and potentially many other biological molecules. The device, resembling a tiny cube-shaped tetherball, uses single-wall carbon nanotubes anchored to gold-coated nanocubes to conduct electrical signals.

SourcePurdue University·JournalACS Nano·DateJan 22, 2009

Disease diagnosis in just 15 minutes

A team at the University of Leeds has developed a fast and affordable biosensor technology to detect biomarkers for various diseases. This technology can potentially replace current testing methods that take hours to complete and require specialized equipment.

Handheld DNA detector

A portable DNA sequencer could aid environmental scientists, clinicians, and medical researchers in detecting genetic disorders. A new type of electronic device, the ion-selective field-effect transistor (ISFET), is being integrated into a DNA biosensor to measure changes in conductivity.

SourceInderscience Publishers·JournalInternational Journal of Nanotechnology·DateMar 10, 2008

Engineering chimeric polypeptides to illuminate cellular redox states

Researchers have designed novel peptide sequences that can detect oxidation and reduction inside cells, providing a new tool for understanding molecular mechanisms underlying complex biomedical problems. The biosensors use Förster resonance energy transfer (FRET) to measure redox potentials and oxidative stress in live cells.

SourceSociety for Experimental Biology and Medicine·JournalExperimental Biology and Medicine·DateJan 23, 2008

Biosensor sniffs out explosives

Researchers at Temple University have developed a new biosensor that uses mammalian olfactory signaling machinery to detect explosives. The biosensor can also potentially be used to screen experimental medications, a crucial step in the development of new drugs.

SourceTemple University·JournalNature Chemical Biology·DateMay 8, 2007

Immune cell communication key to hunting viruses, Jefferson immunologists show

Researchers created a biosensor using quantum dots to mimic the clustering of MHC proteins on target cells, revealing strong contributions from non-viral peptide-MHC interaction with co-receptors. This cooperativity suggests that a single virus-MHC complex recognized in self-MHC complexes can activate a T-cell response.

SourceThomas Jefferson University·JournalProceedings of the National Academy of Sciences·DateOct 25, 2006

Study demonstrates rapid diagnosis of urinary tract infections with biosensor technology

A new biosensor developed by GeneFluidics enables accurate identification of bacteria in urine samples with a rapid turnaround time, reducing the two-day wait period for conventional lab tests. This innovation has the potential to improve patient outcomes and reduce healthcare costs associated with urinary tract infections.

SourceUniversity of California - Los Angeles·JournalJournal of Clinical Microbiology·DateFeb 2, 2006

New biosensor rapidly detects deadly foodborne pathogen

Purdue researchers develop a new optical biosensor that can detect minute quantities of Listeria monocytogenes in less than 24 hours. The sensor is selective enough to recognize only the species monocytogenes and has improved detection capabilities compared to existing commercial test kits.

SourcePurdue University·JournalApplied and Environmental Microbiology·DateOct 5, 2004