Drug delivery coatings are carriers for drug release (Figure 1), crossing a range of compounds including small molecules and antibiotics. The drugs are released with the degradation of the coatings from minutes to years (Figure 2). For example, the coronary stents always need to release anti-restenosis drugs, such as Rapamycin and Paclitaxel.
Figure 1. Schematic diagram of the drug delivery coating
Figure 2. Schematic diagram of the release form
Figure 3. Coating materials for drug delivery coatings
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1. Alenezi A. et al., Development of a photon induced drug-delivery implant coating. Materials Science and Engineering: C. 2019, 98, 619-627.