Abstract
This paper reviews various aspects of parylene coatings in medical devices and industry and summarises the fabrication methods of parylene coatings and their potential medical applications. In medical industry, two major beneficial properties of parylene include excellent barrier qualities and inherent bio-compatibility and bio-stability. The need for a bio-compatible material with good surface characteristics is of paramount importance. The recent findings indicate the application of parylene coatings in several areas of medical industry such as surgical instruments, implants, medical devices, mandrels, and medical electronics. Parylene has been slowly introduced into the research market, and has found to be competitive for available materials in the market. A review of the literature was undertaken to identify the prospective use to determine whether parylene coatings can survive the needs in medical industry.
Highlights
Developments in medical industry and materials science have significantly changed the technique of replacing any part of human anatomy with a restorative material
A strong competent to the HA coatings is parylene which has been used for biomedical applications because of its excellent surface properties, bio-compatibility, bio-stability, increased lubricability and surface consolidation to avert flaking [3]
To protect the devices and implants from the moisture, bio-fluids and chemicals, a surface coating is required with additional characteristics such as bio-compatibility and bio-stability
Summary
Developments in medical industry and materials science have significantly changed the technique of replacing any part of human anatomy with a restorative material. Hydroxyapatite (HA) coatings have been widely used in prosthetic applications since they have similar crystallography and chemical composition to the human hard tissues [2]. A strong competent to the HA coatings is parylene which has been used for biomedical applications because of its excellent surface properties, bio-compatibility, bio-stability, increased lubricability and surface consolidation to avert flaking [3]. In 1947, Michael Mojzesz Swarc investigated a class of aliphatic carbon-hydrogen bonds in which the carbon was directly attached to the benzene ring. During the experiments, he heated the simplest compounds at very high temperatures. Many researchers have used this material in their experiments and in 1965, parylene coatings were commercialised [3]
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