Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 113, Issue 10, Pages 2966-2971Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp9004086
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Funding
- National Science Foundation Center for Scalable and Integrated NanoManufacturing (SINAM) [DMI-0327077]
- Coulter Foundation Early Career Award in Translational Research
- National Institutes of Health [U54 A1065359]
- U.S. DOE, BES/Materials Sciences [DE-AC02-06CH11357]
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The fabrication of biologically amenable interfaces in medicine bridges translational technologies with their surrounding biological environment. Functionalized nanomaterials catalyze this coalescence through the creation of biomimetic and active substrates upon which a spectrum of therapeutic elements can be delivered to adherent cells to address biomolecular processes in cancer, inflammation, etc. Here, we demonstrate the robust functionalization of ultrananocrystalline diamond (UNCD) with type I collagen and dexamethasone (Dex), an anti-inflammatory drug, to fabricate a hybrid therapeutically active substrate for localized drug delivery. UNCD oxidation coupled with a pH-mediated collagen adsorption process generated a comprehensive interface between the two materials, and subsequent Dex integration, activity, and elution were confirmed through inflammatory gene expression assays. These studies confer a translational relevance to the biofunctionalized UNCD in its role as an active therapeutic network for potent regulation of cellular activity toward applications in nanomedicine.
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