Hydroxyapatite-based electrode: a new sensor for phosphate

A novel tyrosinase biosensor based on hydroxyapatite–chitosan nanocomposite for the detection of phenolic compounds

“…Nanostructured HA particles with a higher surface area-to-volume-ratio would be more desirable than bulk HA particles for their application in many fields. For example, some studies have demonstrated that HA nanopar- ticles can be used for the preparation of gas sensors [21][22][23], and immobilization of enzymes [24]. However, the tendency to aggregation of pure HA-based materials limits their further applications, so it is necessary to disperse such nanomaterials in a suitable matrix to prevent aggregation.…”

A novel hydrogen peroxide sensor based on the direct electron transfer of horseradish peroxidase immobilized on silica–hydroxyapatite hybrid film

“…Some studies have demonstrated that HAp can be used for the preparation of sensors, such as CO gas sensor (Mahabole et al, 2005), CO 2 gas sensor (Nagai et al, 1988(Nagai et al, , 1990 and phosphate sensor (Petrucelli et al, 1996), due to its porous structure. HAp has been employed also as a support for the chromatographic separation of biological macromolecules (Niu et al, 2006;Useh et al, 2006).…”

Calcium orthophosphates (CaPO 4 ): Occurrence and properties

“…Also, HA is added to some brands of toothpaste as a gentle polishing agent instead of calcium carbonate (Niwa et al 2001;Kim et al 2006). Non-biomedical applications of HA include its using as an environmentalfriendly filler for elastomers (Pietrasik et al 2008), a lowtemperature sorbent (Bailliez et al 2004;Corami et al 2008) and/or stabilizer (Wang et al 2014b) of poisonous chemical elements, a high-temperature sorbent for carbon dioxide (Landi et al 2014), both a catalyst Rodrigues et al 2014) and a carrier for other catalysts (Domínguez et al 2009;Sun et al 2009;Vukomanović et al 2012), a material for ultraviolet light protection (Holzmann et al 2009) and sunscreen filter (Piccirillo et al 2014), as well as a component of various sensors (Nagai et al 1988;Petrucelli et al 1996;Tagaya et al 2010;Khairnar et al 2011). Finally, highly flexible and nonflammable inorganic paper could be prepared from HA (Lu et al 2014a).…”