Cell-surface biomolecules and membranes via nano-hydroxyapatite core (nHAp)

Nano-hydroxyapatite (nHAp) is a synthetic or natural biomaterial that mimics the inorganic component of human bone and teeth, characterized by high biocompatibility and bioactivity (Source: NIH, StatPearls). The concept of "Cell-surface biomolecules and membranes via nano-hydroxyapatite core" refers to the use of nHAp as a structural scaffold or core for nanoparticles designed to interact with or target specific cellular components (Source: PubMed, PMID: 31203271). These systems often utilize the high surface area and functionalization potential of the nHAp core to carry drugs, genes, or imaging agents to cell surfaces, where they interact with lipid bilayers or specific receptors (Source: Journal of Materials Chemistry B, 2020). While nHAp itself promotes osteoblast differentiation and biomineralization, it is primarily considered a delivery platform rather than a specific therapeutic target like a receptor or enzyme (Source: MDPI Pharmaceutics, 2021). In therapeutic contexts, nHAp cores are functionalized with ligands to target specific receptors or are used to deliver payloads like chemotherapeutics, nucleic acids, or growth factors directly to cells (Source: Journal of Nanobiotechnology, 2021). Consequently, this entry describes a delivery methodology or a material interface rather than a distinct biological molecule. The interaction with cell membranes is often driven by the surface charge of the nHAp core, which can be tuned to enhance cellular uptake or minimize non-specific binding (Source: ACS Applied Materials & Interfaces, 2019). Safety concerns associated with these cores include potential cytotoxicity at high concentrations and the risk of inflammatory responses in non-target tissues (Source: Toxicology Reports, 2020).

Other names

Nano-hydroxyapatitenHApHydroxyapatite nanoparticlesnHAp-core nanoparticlesCalcium phosphate nanoparticles

Acts as a biocompatible carrier that facilitates the delivery of therapeutic agents to cells through surface adsorption or encapsulation, often exploiting the pH-sensitive dissolution of hydroxyapatite for controlled release.