HAP nanoparticle and substrate surface electrical potential towards bone cells adhesion: Recent results review

Area of Science:

• Biomaterials Science
• Nanotechnology
• Biomedical Engineering

Background:

• Nanostructured hydroxyapatite (HAP) is crucial for biomedical implants.
• Implant biocompatibility hinges on cell-implant interactions.
• Surface electrical charge density significantly impacts these interactions.

Purpose of the Study:

• To investigate methods for managing the surface electrical potential of HAP.
• To understand how surface charge influences HAP nanoparticle behavior.

Main Methods:

• Theoretical modeling of nanoparticle surface properties.
• Experimental validation of surface charge manipulation.
• Analysis of HAP nanoparticle size and shape effects.

Main Results:

• Surface electrical charge density is dependent on HAP nanoparticle size and shape.
• Contactless techniques, utilizing external radiation, can engineer HAP surface charge.
• Surface reconstruction plays a role in charge deposition.

Conclusions:

• Surface charge engineering of HAP nanoparticles is feasible.
• Controlled surface charge can enhance implant biocompatibility.
• Size, shape, and external radiation are key factors in HAP surface modification.