The discovery of the DNA-mediated assembly of gold nanoparticles was a great moment in the history of science; this understanding and chemical control enabled the rational design of functional nanomaterials as novel probes in biodetection. In contrast with conventional probes such as organic dyes, gold nanoparticles exhibit high photostability and unique size-dependent optical properties. Becau...

Obesity is a chronic disease affecting both adults and children worldwide. One major cause of obesity high-calorie intake due to overconsumption foods rich in fat carbohydrates. Hence, can be controlled by controlling the diet other lifestyle changes that increase energy expenditure. However, this not always possible for individuals who are already overweight suffering from diseases. Therefore,...

an enzyme-linked immunosorbent assay (elisa) for progesterone measurement in serum or plasma samples using penicillinase as label enzyme is reported. a c3 and c11 derivatives of progesterone were prepared and conjugated to bovin serum albumin (bsa). polyclonal antibody against these two immunogens were prepared in new zealand white rabbits. purified ig fractions of antibodies were immobilized o...

Digitalization of fluorogenic enzymatic assays through the use of femtoliter chamber array technology is an emerging approach to realizing highly quantitative bioassays with single-molecule sensitivity. However, only a few digital fluorogenic enzyme assays have been reported, and the variations of the digital enzyme assays are basically limited to fluorescein- and resorufin-based fluorogenic as...