Disposable immunoassay for hepatitis B surface antigen based on a graphene paste electrode functionalized with gold nanoparticles and a Nafion-cysteine conjugate

Novel gold nanoparticles coated with somatostatin as a potential delivery system for targeting somatostatin receptors

“…This is due to their easy surface functionalization and/ or bioconjugation, stability and biocompatibility. They have been the subjects of many studies and many applications in medicine and in biology, such as immunoassays, drug targeting of cancer cells and in biomedical research (1)(2). AuNPs were delivered to ovarian cancer cells that express the epidermal growth factor receptor and the folate receptor, the ovarian cell took all particles by active transport (3).…”

The effect of material composition of 3-dimensional graphene oxide and self-doped polyaniline nanocomposites on DNA analytical sensitivity

“…Recently, Graphene or its analogues with layered structure and excellent properties were widely used in the fields of supercapacitors [1], biosensing [2], and so on. Especially, assembly of individual graphene sheets to 3-dimensional nanocomposites showed numerous breakthrough in electrocatalysts [3], energystorage [4,5], supercapacitors [6,7], and biomedicine [8].…”

Quadruple signal amplification strategy based on hybridization chain reaction and an immunoelectrode modified with graphene sheets, a hemin/G-quadruplex DNAzyme concatamer, and alcohol dehydrogenase: ultrasensitive determination of influenza virus subtype H7N9

“…Among various nanoparticles, graphene sheets (GS) have attracted tremendous research interests for biological applications, due to the gains offered by their excellent electrical conductivity, rapid electron exchange, and large specific surface areas [17][18][19]. Multiwalled carbon nanotubes (MWCNTs) have been widely used for loading large amounts of antibodies and DNA initiator due to their huge surface areas, high chemical stability, and good electrical conductivity [20,21].…”