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US 12,311,593 B2Granted
Melanin based bio-composites for 3D printing
AssigneeThe Johns Hopkins University
InventorsRadames J. B. Cordero, Arturo Casadevall, Quigly Dragotakes
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Abstract
Described are biocomposites comprising melanin. Uses of melanin biocomposites in methods of heat generation and radiation protection are also described. 3D printed filaments comprising melanin and methods and making and using thereof are further described.
Claims7
An ultraviolet and visible light absorbing biocomposite mixture comprising:
- a thermoplastic polymer, a thermoplastic elastomer, a metal, silicone, and any combination thereof;
- and
- melanin,
- wherein:
- the thermoplastic polymer is acrylonitrile butadiene styrene (ABS), acrylic styrene acrylonitrile (ASA), nylon, polyethylene terephthalate, polylactic acid (PLA), polypropylene, or any combination thereof,
- the metal comprises aluminum, cobalt chrome, Inconel, stainless steel, titanium, tool steel, or combinations thereof;
- the biocomposite mixture comprises between 1% and 10% by weight melanin;
- the melanin comprises melanin purified from biological sources, synthetic melanin, metal-complexed forms of melanin, or combinations thereof;
- and
- the biocomposite mixture comprises at least 80% by weight of 3D printable materials.
7 more elements
Dependencies are inferred from the claim text.