Pablo Yael Carrazco Ávila, Juan Ignacio Rosales Leal, Miguel Ángel Rodríguez Valverde, María Encarnación Morales Hernandez
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Design strategies for titanium surfaces to adsorb and release drugs: An in vitro study.
Background: During the early postoperative period, it is important that the patient recovers without pain and inflammation, while preserving their quality of life. In this sense, coated titanium surfaces have been designed to release anti-inflammatory and analgesic drugs during the first postoperative hours.
Objective: Evaluate the adsorption capacity and release profile of different bioactive titanium surfaces treated with three different drugs: acetaminophen, doxepin and ibuprofen.
Methods: Four bioactive surfaces (polished, oxidized, hydroxyapatite precipitate, and polyvinyl alcohol coating surfaces) were physiochemically treated and analyzed.
Results: Hydroxyapatite coatings were the roughest, while PVA coating was the softest. Acetaminophen was the only drug detected on all the surfaces. In contrast, higher drug doses were loaded into the PVA coatings, showing a satisfactory release profile.
Conclusion: The results suggest that a rougher or ionically charged surface does not guarantee drug adsorption. In contrast, the use of a transport vehicle such as a polyvinyl coating ensures the release of the drug, initiating its therapeutic effect within the first minutes, and maintained for a period of between 120 and 180 min.
期刊介绍：
The aim of Bio-Medical Materials and Engineering is to promote the welfare of humans and to help them keep healthy. This international journal is an interdisciplinary journal that publishes original research papers, review articles and brief notes on materials and engineering for biological and medical systems. Articles in this peer-reviewed journal cover a wide range of topics, including, but not limited to: Engineering as applied to improving diagnosis, therapy, and prevention of disease and injury, and better substitutes for damaged or disabled human organs; Studies of biomaterial interactions with the human body, bio-compatibility, interfacial and interaction problems; Biomechanical behavior under biological and/or medical conditions; Mechanical and biological properties of membrane biomaterials; Cellular and tissue engineering, physiological, biophysical, biochemical bioengineering aspects; Implant failure fields and degradation of implants. Biomimetics engineering and materials including system analysis as supporter for aged people and as rehabilitation; Bioengineering and materials technology as applied to the decontamination against environmental problems; Biosensors, bioreactors, bioprocess instrumentation and control system; Application to food engineering; Standardization problems on biomaterials and related products; Assessment of reliability and safety of biomedical materials and man-machine systems; and Product liability of biomaterials and related products.
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