Back to results
US 12,735,604 B2Granted
Polydopamine composite material and manufacturing method thereof
AssigneeKorea Institute of Science and Technology
InventorsMyoung-Woon Moon, Seong Jin Kim, Young A Lee, Chan Young Oh, Sang-jin Park
Life of this patent
Estimating the term…
Abstract
Provided is a polydopamine composite material according to the concept of the present invention, wherein the polydopamine composite material includes a substrate with first nano-protrusions formed on a surface thereof, and a polydopamine layer on the surface of the substrate. The polydopamine layer includes second nano-protrusions protruding in a direction perpendicular to the surface of the substrate.
Claims20
A polydopamine composite material comprising:
- a substrate having first nano-protrusions formed on a surface thereof;
- and
- a polydopamine layer on the surface of the substrate,
- wherein the polydopamine layer fills gaps between adjacent ones of the first nano-protrusions and includes second nano-protrusions on a surface thereof,
- wherein the second nano-protrusions protrude in a direction perpendicular to the surface of the substrate, each of the second nano-protrusions being formed on a corresponding one of the first nano-protrusions and overlapping the corresponding one of the first nano-protrusions in the direction perpendicular to the surface of the substrate,
- wherein each of the second nano-protrusions has a height less than a height of the corresponding one of the first nano-protrusions, and
- wherein the polydopamine layer has a contact angle with water of less than 10 degrees.
4 more elements
A method for manufacturing a polydopamine composite material, the method comprising:
- preparing a substrate;
- forming first nano-protrusions on a surface of the substrate;
- coating a dopamine solution on the surface of the substrate on which the first nano-protrusions are formed for 1 second to 1 minute;
- and
- polymerizing the dopamine solution in air,
- wherein the polymerizing of the dopamine solution in air forms a polydopamine layer conformally on the first nano-protrusions,
- wherein the polydopamine layer fills gaps between adjacent ones of the first nano-protrusions and includes second nano-protrusions on a surface thereof,
- wherein the second nano-protrusions protrude in a direction perpendicular to the surface of the substrate, each of the second nano-protrusions being formed on a corresponding one of the first nano-protrusions and overlapping the corresponding one of the first nano-protrusions in the direction perpendicular to the surface of the substrate,
- wherein each of the second nano-protrusions has a height less than a height of the corresponding one of the first nano-protrusions, and
- wherein the polydopamine layer has a contact angle with water of less than 10 degrees.
7 more elements
Dependencies are inferred from the claim text.