A preliminary report on a novel electrospray technique for nanoparticle based biomedical implants coating: precision...

Area of Science:

• Biomaterials Engineering
• Surface Science
• Medical Device Technology

Background:

• Biomedical implant performance relies on surface properties, necessitating advanced coating methods.
• Conventional techniques often struggle with uniform thickness, adhesion, and compositional control.
• Achieving precise, uniform coatings is crucial for predictable in situ implant function.

Purpose of the Study:

• To introduce and evaluate a novel precision electrospraying technique for biomedical implant surface modification.
• To demonstrate the technique's capability in applying both degradable and non-degradable coatings.
• To investigate the influence of process parameters on coating characteristics.

Main Methods:

• Utilized precision electrospraying to coat metallic slabs, springs, and microsphere scaffolds.
• Applied poly(lactide-co-glycolide) (PLAGA) and poly(ethylene glycol) (PEG) coatings.
• Analyzed coating morphology and thickness using scanning electron microscopy (SEM).

Main Results:

• Achieved uniform poly(lactide-co-glycolide) coatings across diverse implant substrates.
• Successfully deposited spherical nanoparticle poly(ethylene glycol) coatings (462-930 nm).
• Demonstrated precise control over coating thickness, ranging from micrometers to millimeters.

Conclusions:

• Precision electrospraying is an effective, rapid, and reproducible method for uniform implant surface modification.
• The technique allows for controlled application of various coating materials.
• This approach offers a valuable alternative for enhancing biomedical implant compatibility and efficacy.