Tag Archives: materials science

Novel semiconductor materials for the development of chemical sensors and biosensors: A review

Abstract The aim of this manuscript is to provide a condensed overview of the contribution of certain relatively new semiconductor substrates…The silicon era is initially reviewed providing the background onto which the deployment of the new semiconductor materials for the development of bio-chem-FETs is based on. Subsequently emphasis is given to the selective interaction of [...]

Surface acoustic wave biosensors: a review

Abstract This review presents an overview of 20 years of worldwide development in the field of biosensors based on special types of surface acoustic wave (SAW) devices that permit the highly sensitive detection of biorelevant molecules in liquid media…1987 saw the first approaches, which used either horizontally polarized shear waves (HPSW) in a delay line [...]

Recent advances in polyaniline based biosensors

Abstract The present paper contains a detailed overview of recent advances relating to polyaniline (PANI) as a transducer material for biosensor applications. This conducting polymer provides enormous opportunities for binding biomolecules, tuning their bio-catalytic properties, rapid electron transfer and direct communication to produce a range of analytical signals and new analytical applications. Merging the specific [...]

A multicomponent recognition and separation system established via fluorescent, magnetic, dualencoded multifunctional bioprobes

Abstract Accurate and rapid recognition and separation of multiple types of biological targets such as molecules, cells, bacteria or viruses from complex sample mixtures is of great importance for a wide range of diagnostic and therapeutic strategies. To achieve this goal, a set of fluorescent, magnetic, dual-encoded multifunctional bioprobes has been constructed by co-embedding different-sized [...]

Immobilization of biomolecules on nanostructured films for biosensing

Abstract This paper brings an overview of the use of nanostructured films in several types of biosensors, with emphasis on the advantageous control of molecular architecture…Important contributions in the literature in biosensors based on electrochemical and optical measurements are highlighted. Furthermore, a discussion is presented on how the concept of electronic tongues has been extended [...]

Recent advances in wide bandgap semiconductor biological and gas sensors

Abstract There has been significant recent interest in the use of surface-functionalized thin film and nanowire wide bandgap semiconductors, principally GaN, InN, ZnO and SiC, for sensing of gases, heavy metals, UV photons and biological molecules. For the detection of gases such as hydrogen, the semiconductors are typically coated with a catalyst metal such as [...]