A new promising material for biological applications: multi-level physical modification of AgNPs-decorated PEEK
In the case of polymer medical devices, the surface design plays a crucial role in contact with human tissue. The use of AgNPs as antibacterial agents is well known; however, their anchoring into the polymer surface can still be investigated. This work describes the change in surface morphology and behaviour in the biological environment of polyetheretherketone (PEEK) with immobilised AgNPs after different surface modifications. The initial composites were prepared by immobilisation of silver nanoparticles from a colloid solution into the upper surface layers of polyetheretherketone (PEEK). The prepared samples (Ag/PEEK) had a planar morphology and were further modified with a KrF laser, a GaN laser, and Ar plasma. The samples were studied using the AFM method to visualise changes in surface morphology and to obtain information on the height of the structures and other surface parameters. Comparative analysis of the nanoparticles and polymers was performed using FEG-SEM. The chemical composition of the surface of the samples and optical activity were studied by XPS and UV-Vis spectroscopy. Finally, drop plate antibacterial and cytotoxicity tests were performed to determine the role of Ag nanoparticles after modification and suitability of the surface, which are important for the use of the resulting composite in biomedical applications.
Code (0)
등록된 구현이 없습니다.
Similar Papers 제목 키워드 기반
Biological applications of ferroelectric materials
The study and applications of ferroelectric materials in the biomedical and biotechnological fields is a novel and very promising scientific area that spans roughly one decade. However, some groups have already provided …
Identifying Constitutive Parameters for Complex Hyperelastic Materials using Physics-Informed Neural Networks
Identifying constitutive parameters in engineering and biological materials, particularly those with intricate geometries and mechanical behaviors, remains a longstanding challenge. The recent advent of Physics-Informed …
BioinspiredLLM: Conversational Large Language Model for the Mechanics of Biological and Bio-inspired Materials
The study of biological materials and bio-inspired materials science is well established; however, surprisingly little knowledge has been systematically translated to engineering solutions. To accelerate discovery and gu…
ArticlesLanguage ModelingLanguage ModellingLarge Language Model+1Metamaterial-inspired Wearable Pad for Enhancing EM Coupling with Biological Tissues
Wearable, implantable, and ingestible antennas are continuously evolving in biomedical applications, as they are crucial components in devices used for monitoring and controlling physiological parameters. This work prese…
DiagnosticNon-Photorealistic Rendering of Layered Materials: A Multispectral Approach
We present multispectral rendering techniques for visualizing layered materials found in biological specimens. We are the first to use acquired data from the near-infrared and ultraviolet spectra for non-photorealistic r…