Hybrid Nanoparticle/DNAzyme Electrochemical Biosensor for the Detection of Divalent Heavy Metal Ions and Cr.

A hybrid noble nanoparticle/DNAzyme electrochemical biosensor is proposed for the detection of Pb, Cd, and Cr. The sensor takes advantage of a well-studied material that is known for its selective interaction with heavy metal ions (i.e.

Food container employing a cold atmospheric plasma source for prolonged preservation of plant and animal origin food products.

Cold Atmospheric Plasma is a non-thermal processing technology with great potential for application to food products as it can effectively reduce the microbial load, leading to substantial shelf-life extension. Herein, we present an easy-to-build and cost-effective Surface Dielectric Barrier Discharge (SDBD) plasma source adjusted to the plastic lid of a common commercial food container made of transparent glass. Implementation and evaluation of plasma treatment in real perishable food products such as sea bream fillets, fresh-cut rocket salads and fresh whole strawberries showed that such device might be efficiently used in-storage for the extension of their shelf-life.