Laccase-mediated in situ oxidation of dopa for bio-inspired coloration of silk fabric

Jia, Wenbao; Wang, Qiang; Fan, Xuerong; Dong, Aixue; Yu, Yuanyuan; Wang, Ping

doi:10.1039/c6ra25533g

Cited by 33 publications

(21 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oxidation of dopamine furthermore results in melanin polymers that provide resistance against UV light by absorbing it and dissipating it as heat. Jia and co‐workers used laccase to oxidise dopamine and make silk UV resistant . Polydopamine coatings were applied in two ways: 1) firstly, by adsorbing it on the silk surface followed by dipping the silk in a solution of laccase, or 2) through in situ laccase‐mediated dopamine polymerisation in the presence of silk.…”

Section: Laccase‐mediated Grafting On Proteinsmentioning

confidence: 99%

“…Jia and co-workersu sed laccase to oxidised opamine and make silk UV resistant. [120] Polydopamine coatings were appliedi n two ways:1 )firstly,b ya dsorbing it on the silk surfacef ollowed by dipping the silk in as olution of laccase, or 2) through in situ laccase-mediated dopamine polymerisation in the presence of silk. Althoughm ethod two provided higher colour strength,w ashing fastness was inferior.F urther washing was attempted by treatingt he samples with DMF at 90 8C.…”

Section: Laccase-mediated Graftingo Nproteinsmentioning

confidence: 99%

See 1 more Smart Citation

Laccase‐Mediated Grafting on Biopolymers and Synthetic Polymers: A Critical Review

2017

View full text Add to dashboard Cite

Laccase‐mediated grafting on lignocelluloses has gained considerable attention as an environmentally benign method to covalently modify wood, paper and cork. In recent decades this technique has also been employed to modify fibres with a polysaccharide backbone, such as cellulose or chitosan, to infer colouration, antimicrobial activity or antioxidant activity to the material. The scope of this approach has been further widened by researchers, who apply mediators or high redox potential laccases and those that modify synthetic polymers and proteins. In all cases, the methodology relies on one‐ or two‐electron oxidation of the surface functional groups or of the graftable molecule in solution. However, similar results can very often be achieved through simple deposition, even after extensive washing. This unintended adsorption of the active substance could have an adverse effect on the durability of the applied coating. Differentiating between actual covalent binding and adsorption is therefore essential, but proves to be challenging. This review not only covers excellent research on the topic of laccase‐mediated grafting over the last five to ten years, but also provides a critical comparison to highlight either the lack or presence of compelling evidence for covalent grafting.

show abstract

Section: Laccase‐mediated Grafting On Proteinsmentioning

confidence: 99%

Section: Laccase-mediated Graftingo Nproteinsmentioning

confidence: 99%

Laccase‐Mediated Grafting on Biopolymers and Synthetic Polymers: A Critical Review

2017

View full text Add to dashboard Cite

show abstract

“…(Silva et al 2011;Chen et al 2012;Dong et al 2014). Furthermore, laccase can also be used in the dyeing (Bai et al 2016;Jia et al 2017) and functional finishing (Montazer et al 2009;Hossain et al 2010;Fu et al 2015) of protein-based fibers during textile processing.…”

Section: Introductionmentioning

confidence: 99%

Effect of Common Metal Ions and Anions on Laccase Catalysis of Guaiacol and Lignocellulosic Fiber

Zhou¹,

Dong²,

Wang³

et al. 2017

BioResources

Self Cite

View full text Add to dashboard Cite

The effects of 12 common metal ionic compounds on the laccase catalytic activity in reactions using guaiacol as the substrate was determined using spectrophotometry. Furthermore, the influence of several metal ionic compounds on the generation of reactive oxygen species (ROS) by oxidation of lignin in jute fiber under laccase catalysis was studied by electron paramagnetic resonance (EPR) spectroscopy using N-tert-butylalpha-phenylnitrone (PBN) as the spin-trapping agent. , and Ag + exhibited either strong inhibitory effects on the catalysis of the substrate or a destructive effect on the structure of laccase itself. Furthermore, the results showed that an appropriate concentration of Cu 2+ helped to promote the thermal stability of laccase during the enzymatic reaction. This study could help researchers to avoid the use of inhibitory exogenous metal ions and anions in the application of laccase and to maximize the value of laccase.

show abstract

“…To study the effect of dopamine dosage, five dopamine dosages (1, 2, 3, 4 and 5 g/L) were used, and the other parameters were as follows: pH 8. 5,45 o C and 24 h. To evaluate the effect of time, 2 g/L dopamine, pH 8.5 and 45 o C were used, and silk fabric was treated for 2 to 30 h. These discussions gave the optimized conditions of dopamine application: pH 8. 5,45 o C and 24 h. Thus, the silk fabric treated with 2 g/L dopamine was used for the evaluations of color characteristics, color fastness, stability to acid and alkali, and functionalities.…”

Section: Coloration and Functional Modification Of Silk Fabric By Dopmentioning

confidence: 99%

“…In addition to this, dopamine polymerization was also used to induce the surface coloration of cotton, wool and polybenzimidazole fibers through a simple dip-coating procedure in the presence of specific oxidants [1]. A recent study reported the laccase-mediated in situ oxidation of dopamine for the bioinspired coloration of silk fabric [5]. In this work, the self-polymerization of dopamine was applied to the coloration and functional modification of silk fiber by a dipping approach.…”

Section: Introductionmentioning

confidence: 99%

Coloration and Functional Modification of Silk Fiber via Dopamine Polymerization

Kuang¹,

Guan²,

Chen³

et al. 2017

Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)

View full text Add to dashboard Cite

Abstract:The oxidative polymerization of dopamine for the functional surface modification of materials has drawn extensive attention. In this work, the coloration and functional modification of silk fiber by dopamine polymerization were studied. The conditions of dopamine application were first discussed in the absence of specific oxidants, and then the surface morphology, color characteristics, color fastness, stability to acid and alkali, UV protection ability and antistatic property of the colored and modified silk fiber were determined. The pH, temperature and time of dopamine application were found to exert great influence on the color depth of silk fiber. A weakly alkaline condition (pH 8.5) was an essential prerequisite. The treated silk fiber showed a brown grey color, a high color fastness to washing, and a good stability to acid and weak alkali. The polymerization of dopamine on the surface of silk fiber imparted UV protection and antistatic effects to silk fabric.

show abstract

Laccase-mediated in situ oxidation of dopa for bio-inspired coloration of silk fabric

Abstract: The mechanism of the biological coloration of silk fabric by laccase-mediated in situ oxidation of dopa is revealed.

Cited by 33 publications

References 30 publications

Laccase‐Mediated Grafting on Biopolymers and Synthetic Polymers: A Critical Review

Laccase‐Mediated Grafting on Biopolymers and Synthetic Polymers: A Critical Review

Effect of Common Metal Ions and Anions on Laccase Catalysis of Guaiacol and Lignocellulosic Fiber

Coloration and Functional Modification of Silk Fiber via Dopamine Polymerization

Contact Info

Product

Resources

About