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Home SH - Materials Science & Engineering and Bioengineering Departments - University of Texas at Dallas

SH - Materials Science & Engineering and Bioengineering Departments - University of Texas at Dallas

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Ultrananocrystalline diamond coating (UNCD™): Revolutionizing surface engineering

Figure 1. (a) High-resolution transmission electron microscopy image of UNCDTM coating, showing 3-5 nm grains; (b) Schematic of Si microchip (artificial retina)-left/cross-section scanning electron microscopy (SEM-top right) image of UNCD-encapsulated microchip and electrodes (bottom) made of Si tips coated with unique electrically conductive N atoms-doped N-UNCD coating. Injecting electrons in ganglion cells, transferring to the brain to produce an image; (c) Cross-section SEM image of UNCD-coated DI; (d) X-ray image of UNCD- coated DI (upper left) and UNCD-coated DI in maxillary bone of one of 51 patients implanted with UNCD-coated DI in clinical trials (2018 to present); (e) Schematics of artificial hip (top)/knee (bottom) to be coated with UNCDTM; (f) Water drop contact angle (178 ̊) on CF4 plasma processed UNCDTM surface, showing highest super-hydrophobicity of any known biomaterial, inhibiting blood cells adhesion on stent’s surface (Fig. 1(g))/heart valve’s surface (Fig. 1 (h)), eliminating thrombus formation. (5)

Ultrananocrystalline diamond (UNCD™) coating for new-generation implantable medical devices/prostheses

Figure 1. a) fungal mycelium schematic, showing filamentous roots (interconnected threads / tubes transporting water/mineral- nutrients, shown in schematic in (b); (c) schematic of chitinous cellular walls converted into graphitic matrix with integrated UNCD grains (3-5 nm diameter), shown in SEM image in (g), confirmed by HRTEM in (h), characteristic of UNCD, (m0 and (n) XRD spectra confirming the diamond structure of UNCD grans.

Pioneering biomass transformation to unique multifunctional/ biocompatible ultrananocrystalline diamond (UNCDTM)

figure 1, Ultrananocrystalline Diamond

Ultrananocrystaline diamond (UNCD™) coatings for new generations high-tech/ medical devices/prostheses

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