Scientists create luminescent gels with multitude of applications from counterfeiting to bio-sensing

15-Jun-2022 - Scientists from Trinity College Dublin have taken inspiration from nature to create luminescent, self-healing gels with a suite of potential applications ranging from bank note counterfeiting to next-gen bio-sensing and imaging. Crucially, the scientists have been able to introduce guanosine (a ...

Gold shines through properties of nano biosensors

Fluorescence in ligand-protected gold nanoclusters is an intrinsic property of the gold particles themselves

17-Aug-2017 - With their remarkable electrical and optical properties, along with biocompatibility, photostability and chemical stability, gold nanoclusters are gaining a foothold in a number of research areas, particularly in biosensing and biolabeling. These gold nanoclusters are chemically protected by ...

Researcher finds gold - and other metals

Gold sensor is latest in a series of metal-detecting biosensors

22-Feb-2016 - Instead of a pan and a pick ax, prospectors of the future might seek gold with a hand-held biosensor that uses a component of DNA to detect traces of the element in water. The gold sensor is the latest in a series of metal-detecting biosensors under development by Rebecca Lai, an associate ...

Researchers design and patent graphene biosensors

17-Nov-2015 - Label-free biosensors are relatively new in biochemical and pharmaceutical laboratories, and have made work much easier. The sensors enable researchers to detect low concentrations of biologically significant molecular substances (RNA, DNA, proteins, including antibodies and antigens, viruses and ...

Carbon nanotubes form ultrasensitive biosensor to detect proteins

30-Jun-2010 - A cluster of carbon nanotubes coated with a thin layer of protein-recognizing polymer form a biosensor capable of using electrochemical signals to detect minute amounts of proteins, which could provide a crucial new diagnostic tool for the detection of a range of illnesses, a team of Boston ...

New imaging technology brings trace chemicals into focus

16-Mar-2010 - Arizona State Univeristy scientist N.J. Tao and his colleagues at the Biodesign Institute have hit on a new, versatile method to significantly improve the detection of trace chemicals important in such areas as national security, human health and the environment. Tao's team was able to detect ...

Graphene's versatility promises new applications

13-Jul-2009 - Since its discovery just a few years ago, graphene has climbed to the top of the heap of new super-materials poised to transform the electronics and nanotechnology landscape. As N.J. Tao, a researcher at the Biodesign Institute of Arizona State University explains, this two dimensional honeycomb ...

Nanoneedle is small in size, but huge in applications

30-Apr-2009 - Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells. In addition to ferrying tiny amounts of cargo, the nanoneedle can also be used as an electrochemical ...

Fitting pieces for biosensors

15-Apr-2009 - Research and industry are increasingly exploiting the potential of aptamers. As well as their application in research, medical diagnosis and treatment, aptamers are also interesting as a basis for biosensors for use in environmental analysis because their characteristics enable them to identify ...

'Enlightened' atoms stage nano-riot againsts uniformity

Harnessing this behavior could lead to cooler computer chips, better bio-sensors

19-Nov-2008 - When atoms in a crystal are struck by laser light, their electrons, excited by the light, typically begin moving back and forth together in a regular pattern, resembling nanoscale soldiers marching in a lockstep formation. But according to a new theory developed by Johns Hopkins researchers, ...