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Dihydroxynaphthalene-based mimicry of fungal melanogenesis for multifunctional coatings.

Jeon JR, Le TT, Chang YS - Microb Biotechnol (2016)

Bottom Line: This product, termed poly(2,7-DHN), was successfully deposited onto a wide variety of solid surfaces, including metals, polymeric materials, ceramics, biosurfaces and mineral complexes.The melanin-like polymerization could be used to co-immobilize other organic molecules, forming functional surfaces.Moreover, the novel physicochemical properties of the poly(2,7-DHN) illuminate its potential applications as bactericidal, radical-scavenging and pollutant-sorbing agents.

View Article: PubMed Central - PubMed

Affiliation: Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52727, Korea.

No MeSH data available.


Related in: MedlinePlus

Oxidative polymerization of 2,7‐dihydroxynaphthalene (DHN) leads to material‐independent nanothickness coating. The coated surface is further linked to metallization and immobilization. Innate physicochemical properties of poly(2,7‐DHN) give also rise to surface functionalization showing charge‐dependent sorption, radical scavenging and anti‐bacterial activity.
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mbt212347-fig-0006: Oxidative polymerization of 2,7‐dihydroxynaphthalene (DHN) leads to material‐independent nanothickness coating. The coated surface is further linked to metallization and immobilization. Innate physicochemical properties of poly(2,7‐DHN) give also rise to surface functionalization showing charge‐dependent sorption, radical scavenging and anti‐bacterial activity.

Mentions: Here, we describe the application of a simple dip‐coating method for a diverse range of solid substrates by using 2,7‐DHN to mimic fungal melanogenesis. Reacting laccase with 2,7‐DHN led to efficient oxidative polymerization and gave rise to polyaromatics containing multiple hydroxyphenyl groups. The co‐incubation of functional organic molecules during the DHN polymerization resulted in their co‐immobilization onto the surface of the substrates. In addition, hydroxyphenyl groups in the poly(2,7‐DHN) layer could act as adhesive sites for proteins or chelating/reductive sites for electroless metallization, thus contributing to secondary surface functionalization (Scheme 2).


Dihydroxynaphthalene-based mimicry of fungal melanogenesis for multifunctional coatings.

Jeon JR, Le TT, Chang YS - Microb Biotechnol (2016)

Oxidative polymerization of 2,7‐dihydroxynaphthalene (DHN) leads to material‐independent nanothickness coating. The coated surface is further linked to metallization and immobilization. Innate physicochemical properties of poly(2,7‐DHN) give also rise to surface functionalization showing charge‐dependent sorption, radical scavenging and anti‐bacterial activity.
© Copyright Policy - creativeCommonsBy
Related In: Results  -  Collection

License
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getmorefigures.php?uid=PMC4835569&req=5

mbt212347-fig-0006: Oxidative polymerization of 2,7‐dihydroxynaphthalene (DHN) leads to material‐independent nanothickness coating. The coated surface is further linked to metallization and immobilization. Innate physicochemical properties of poly(2,7‐DHN) give also rise to surface functionalization showing charge‐dependent sorption, radical scavenging and anti‐bacterial activity.
Mentions: Here, we describe the application of a simple dip‐coating method for a diverse range of solid substrates by using 2,7‐DHN to mimic fungal melanogenesis. Reacting laccase with 2,7‐DHN led to efficient oxidative polymerization and gave rise to polyaromatics containing multiple hydroxyphenyl groups. The co‐incubation of functional organic molecules during the DHN polymerization resulted in their co‐immobilization onto the surface of the substrates. In addition, hydroxyphenyl groups in the poly(2,7‐DHN) layer could act as adhesive sites for proteins or chelating/reductive sites for electroless metallization, thus contributing to secondary surface functionalization (Scheme 2).

Bottom Line: This product, termed poly(2,7-DHN), was successfully deposited onto a wide variety of solid surfaces, including metals, polymeric materials, ceramics, biosurfaces and mineral complexes.The melanin-like polymerization could be used to co-immobilize other organic molecules, forming functional surfaces.Moreover, the novel physicochemical properties of the poly(2,7-DHN) illuminate its potential applications as bactericidal, radical-scavenging and pollutant-sorbing agents.

View Article: PubMed Central - PubMed

Affiliation: Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52727, Korea.

No MeSH data available.


Related in: MedlinePlus