Extremely-strong coating resists micro organism and viruses on complicated natural surfaces


Ultra-strong coating inspired by Korean mussels! Next-gen anti-bacterial and anti-viral surface modification technology
a) Schematic of the direct floor modification of the dermis utilizing an ultrathin PDA and PDA-TOB layer and its functionalities and binding websites. b) Localized PDA-modified epidermal modification utilizing completely different polymerization occasions. c) Raman spectra of naked and PDA- and PDA-TOB-modified epidermises. d) Schematic of an ultrathin PDA layer uniformly coated on pores and hairs. e) Optical microscopy photos of unmodified and PDA-modified epidermises with pores. f) Optical (left) and scanning electron (proper) microscopy photos of unmodified and PDA-modified hairs. Credit score: Superior Healthcare Supplies (2025). DOI: 10.1002/adhm.202500597

Professor Bonghoon Kim of the Division of Robotics and Mechatronics Engineering on the Daegu Gyeongbuk Institute of Science & Expertise has efficiently developed a next-generation floor modification expertise with antibacterial and antiviral contamination properties.

The examine was carried out in collaboration with Professor Junkyun Oh of the Division of Polymer System Engineering at Dankook College, Senior Researcher Hojun Kim of the Middle for Superior Biomolecular Recognition on the Korea Institute of Science and Expertise (KIST), and Professor Janghwan Kim of the Division of Superior New Supplies Engineering at Ajou College. It was featured as a canopy article within the journal Superior Healthcare Supplies.

A notable attribute of this novel floor modification expertise developed on this examine is its potential to uniformly type nanometer-thick polydopamine (PDA) layers on a variety of natural surfaces. This expertise allows uniform coating for complicated surfaces with curved or microscopic pores, thereby minimizing electrical sign fluctuations brought on by bodily secretions and enhancing the soundness of bio-signal measurements.

Whereas maximizing the bactericidal impact, the PDA layer, mixed with the antibiotic tobramycin, inhibits the adsorption of coronavirus on the , demonstrating its potential for software as medical patches and wearable sensors.

The floor modification technique successfully eliminates the necessity to use poisonous solvents and a vacuum atmosphere, key limitations of standard chemical vapor deposition and self-assembled single molecular membrane processes.

PDA-based coatings fashioned quickly and safely in , and carried out equally properly on substrates with various levels of floor power and roughness, together with pores and skin, fruit peels, and animal tissue. This expertise’s broad applicability signifies sturdy potential for future scalability throughout numerous sectors, together with anti-infection supplies, important signal measurement units, and the cosmetics and wonder industries.

“This examine holds significance because it was featured as the duvet article in a prestigious worldwide journal,” stated Professor Bonghoon Kim. “We are going to proceed to look at how antibacterial and anti-contamination capabilities could be utilized within the and wearable digital gadget sectors sooner or later.”

Extra info:
Su Eon Lee et al, Direct Floor Modification of the Dermis Utilizing Mussel‐Impressed Polydopamine with A number of Anti‐Biofouling Features, Superior Healthcare Supplies (2025). DOI: 10.1002/adhm.202500597

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Extremely-strong coating resists micro organism and viruses on complicated natural surfaces (2025, September 23)
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