Surface modification of textile material through deposition of regenerated silk fibroin

Ngo, Ha‐Thanh; Bechtold, Thomas

doi:10.1002/app.45098

Cited by 14 publications

(12 citation statements)

References 50 publications

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“…Compared to hard NPs, soft CLPs are presumably safer since undesirable penetration of the elastic NPs through the biological membranes is minor. Low cytotoxicity [31,64] and resistance for the enzymatic hydrolysis increase potential to exploit CLPs in value-added applications in medicine and cosmetics [2,20].…”

Section: Resultsmentioning

confidence: 99%

“…Technologies focusing on the preparation of adhesives utilizing natural polymers such as proteins and cellulosics for medical, textile and food applications are emerging research fields [1,2,3] However, biorefinery industry produces also lignin by-product, which is still underutilized, even though this aromatic, antioxidative and antimicrobial biopolymer could be an interesting raw material for many value-added applications [4].…”

Section: Introductionmentioning

confidence: 99%

“…Due to excellent solubility and biocompatibility, regenerated silk proteins have been used in medical applications such as textiles, implants and materials for controlled drug release. Deposition of silk fibrin on polymeric surfaces is a remarkable challenge [2]. Enzymatic cross-linking with transglutaminase (Tgase, EC 2.3.1.13) catalyzing cross-links between glutamines and lysines has been used to stabilize proteins against chemicals and proteases [17].…”

Section: Introductionmentioning

confidence: 99%

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Colloidal Lignin Particles as Adhesives for Soft Materials

et al. 2018

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Lignin has interesting functionalities to be exploited in adhesives for medicine, foods and textiles. Nanoparticles (NPs) < 100 nm coated with poly (L-lysine), PL and poly(L-glutamic acid) PGA were prepared from the laccase treated lignin to coat nanocellulose fibrils (CNF) with heat. NPs ca. 300 nm were prepared, β-casein coated and cross-linked with transglutaminase (Tgase) to agglutinate chamois. Size exclusion chromatography (SEC) and Fourier-transform infrared (FTIR) spectroscopy were used to characterize polymerized lignin, while zeta potential and dynamic light scattering (DLS) to ensure coating of colloidal lignin particles (CLPs). Protein adsorption on lignin was studied by quartz crystal microbalance (QCM). Atomic force microscopy (AFM) was exploited to examine interactions between different polymers and to image NPs with transmission electron microscopy (TEM). Tensile testing showed, when using CLPs for the adhesion, the stress improved ca. 10 and strain ca. 6 times compared to unmodified Kraft. For the β-casein NPs, the values were 20 and 8, respectively, and for the β-casein coated CLPs between these two cases. When NPs were dispersed in adhesive formulation, the increased Young’s moduli confirmed significant improvement in the stiffness of the joints over the adhesive alone. Exploitation of lignin in nanoparticulate morphology is a potential method to prepare bionanomaterials for advanced applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Colloidal Lignin Particles as Adhesives for Soft Materials

et al. 2018

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“…For larger scale application a simple regeneration process without the involvement of dialysis would be desirable, in an ideal case quantitative regeneration of the dissolved protein is achieved through direct destabilisation and coagulation of the dissolved fibroin [18,31,32]. However, this requires a more detailed understanding of the solution state of fibroin in CWE.…”

mentioning

confidence: 99%

Analysis of the Fibroin Solution State in Calcium Chloride/Water/Ethanol for Improved Understanding of the Regeneration Process

Ngo

Bechtold

2018

Fibres and Textiles in Eastern Europe

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Shaping of fibroin protein from Bombyx mori from calcium chloride/water/ethanol solution is of high interest for the manufacturing of biocompatible structures. Potentiometric titration experiments of the dissolved state permit new insight into the solution state of fibroin as a basis for improved regeneration. Titration experiments and infrared spectroscopy of the solution state support the model of an ion-rich hydration layer and interaction of the solvent with charged and polar groups of the fibroin, rather than through formation of defined calcium complexes. The potentiometric titration curves indicate the formation of calcium complexes at pH values above 9, most probably through involvement of basic amino acids and phenolic groups of tyrosine. After regeneration by the addition of methanol, the regenerated protein was characterised by FTIR, nitrogen and calcium analysis. The analysis of supernatants for their residual protein content indicated minor losses of protein, most probably low molecular weight proteins. The results contribute to an improved understanding of the solution state as a basis for larger scale regeneration, e.g. for the coating of textile fibres with regenerated fibroin.

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“…soft CLPs are presumably safer since undesirable penetration of the elastic NPs through the biological membranes is minor. Low cytotoxicity [64,31] and resistance for the enzymatic hydrolysis increase potential to exploit CLPs in value-added applications in medicine and cosmetics [20,2].…”

Section: Poly(l-glutamic Acid)mentioning

confidence: 99%

Colloidal Lignin Particles as Adhesives for Soft Materials

Mattinen¹,

Rivière²,

Henn³

et al. 2018

Preprint

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Lignin has interesting functionalities to be exploited in adhesives for medicine, foods and textiles. Nanoparticles (NPs) <100 nm coated with poly(L-lysine), PL and poly(L-glutamic acid) PGA were prepared from the laccase treated lignin to coat nanocellulose fibrils (CNF) with heat. NPs ca. 300 nm were prepared, β-casein coated and cross-linked with transglutaminase (Tgase) to agglutinate chamois specimens. Size exclusion chromatography (SEC) and Fourier-transform infrared (FTIR) spectroscopy were used to characterize polymerized lignin, zetapotential and dynamic light scattering (DLS) to ensure coating of colloidal lignin particles (CLPs). Protein adsorption on lignin was studied by quartz crystal microbalance (QCM). Atomic force microscopy (AFM) was exploited to examine interactions between different polymers and to image NPs with transmission electron microscopy (TEM). Tensile testing showed, when using CLPs for the adhesion, the stress improved ca. 10 and strain ca. 6 times compared to polymeric lignin. For the β-casein NPs the values were 20 and 8, respectively, and for the β-casein coated CLPs between these two cases. When NPs were dispersed in adhesive formulation, the Young's moduli confirmed significant improvement in the elasticity of the joints over the adhesive alone. Exploitation lignin in nanoparticulate morphology is a potential method to prepare bionanomaterials for advanced applications.

show abstract

Surface modification of textile material through deposition of regenerated silk fibroin

Cited by 14 publications

References 50 publications

Colloidal Lignin Particles as Adhesives for Soft Materials

Colloidal Lignin Particles as Adhesives for Soft Materials

Analysis of the Fibroin Solution State in Calcium Chloride/Water/Ethanol for Improved Understanding of the Regeneration Process

Colloidal Lignin Particles as Adhesives for Soft Materials

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