During silk transformation process one of the byproducts obtained is sericin (SS). Although currently treated as a waste in Colombia, recent years it has been attributed with important biological properties, such corrosion resistance, antimicrobial activity, ultraviolet radiation (UV) protection, easy absorption and release moisture, among others. Therefore, many researchers are looking for alternative uses to develop value-added products biomedical, pharmaceutical, cosmetic, food...

This study compares the structural and thermal properties of silk fibroin (SF) films obtained from different raw materials: coccons (SC) fibrous wastes (SW). Samples were processed by solution casting (SFC SFW), with a subsequent water annealing treatment (WA-SFC WA-SFW). The presence crystalline (silk I II) amorphous structures was evaluated using X-ray diffraction (XRD) Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy. Thermal SF studied DSC measurements....

Abstract Silk degumming is considered the first point in preparation of silk-based materials since this process could modify silk fiber and properties its related products. This study evaluated differences morphology, secondary structure, amino acid content, thermal stability, mechanical two types raw materials, defective cocoons (DC) fibrous waste (SW), degummed by chemical (C) autoclaving (A) methods. Subsequently, fibroin films were prepared dissolving each type fibers, structural...

ABSTRACT Silk fibroin (SF) is an engineered biopolymer with properties that are desirable for the development of food preservation materials, such as edible coatings or packaging. In this study, SF from fibrous waste was assessed first time coating strawberries. Relationships were established between structural thin films obtained silk waste, both untreated (SFW) and water annealed (WA‐SFW) their morphology performance strawberry coatings. According to results obtained, water‐annealing...

Silk fibroin (SF) is a protein polymer claimed to have outstanding potential for medical applications. However, because of the manufacturing process, materials from regenerated SF exhibit higher percentage amorphous structures. The structures cause material be water soluble and can significantly limit its applications in wet biological environments. In order increase amount crystalline decrease solubility materials, post-treatment with alcohols usually employed. obtained silk fibrous wastes...

Sericin is a protein found in silk. This one has different biological functions such as oxidation resistance, antibacterial and antimicrobial activity, solar ultraviolet radiation (UV) protection, easy absorption moisture release, inhibition of tyrosine kinase's activity cellular additivity, anticoagulants anticancer properties, also promotes cell growth wound healing. In this scientific review article will be reviewed general characteristics both the fiber silksilk worm Bombyx mori,...

Bio-insulations have gained great interest in recent years due to their potential reduce energy consumption without negative environmental impacts. Fique is one of the most important crops Colombia, it has shown a low thermal conductivity which makes replacement for common insulation materials. However, there are few works that study its properties. In order enhance understanding fique as insulation, this paper morphological analysis raw fibers and Thermogravimetry (TGA) Differential...

In this work, the effect of fabrication parameters on silk fibroin (SF) nonwovens obtained by electrospinning were evaluated. Additionally, relationship between secondary structures and thermal stability protein materials, with morphological characteristics analyzed. Silk in formic acid solution at 10% w/w was electrospun 8 cm varying ratio voltage/distance flow rate. The morphology observed Scanning Electron Microscopy (SEM) fibers diameter determined ImageJ software. changes structure...

Local production of construction materials is a valuable tool for improving the building sector sustainability. In this sense, use lignocellulosic fibers from local species becomes an interesting alternative to development such materials. As it thought that properties fiber-based are dependent on properties, knowledge fundamental promote development. This study compares physical, morphological, acoustic, and mechanical characteristics coir (Cocos nucifera) fique (Furcraea Agavaceae) panels....

En el presente artículo se hace una revisión bibliográfica de la fibroína seda (FS) y sus potenciales aplicaciones en empaques biodegradables alimentos. Son cuatro temas principales los que centra artículo: empaques, biopolímeros FS finalmente, para Razones como cuidado del medioambiente uso responsable recursos, al igual necesidad desarrollar materiales biodegradables, han promovido investigaciones con diferentes biopolímeros, entre encuentra FS. Esta proteína representa cerca 70% fibra...

The surface modification of materials obtained from natural polymers, such as silk fibroin with metal nanoparticles that exhibit intrinsic electrical characteristics, allows the obtaining biocomposite capable favoring propagation and conduction impulses, acting communicating structures in electrically isolated areas. On basis, this investigation determined electrochemical electroconductive behavior through impedance spectroscopy a electrospun membrane fibrous waste functionalized gold or...

La seda es un filamento de origen animal producido por el gusano Bombyx mori. Esta fibra se caracteriza susuavidad y brillo único, lo cual atribuye a la forma triangular su sección transversal. Además, tiene una altaresistencia tracción alta tenacidad, similar algunas fibras sintéticas. En este trabajo realizó unarevisión bibliográfica los procesos que requiere para obtener teñido homogéneo, partiendo desdelos tratamientos previos tintura hasta las pruebas caracterización solidez del color.

Abstract Enhancing the biocompatibility and mechanical stability of small diameter vascular scaffolds remain significant challenges. To address this challenge, small‐diameter tubular structures were electrospun from silk fibroin (SF) textile industry discarded materials to generate bilayer that mimic native blood vessels, but derived a sustainable natural material resource. The inner layer was obtained by directly dissolving SF in formic acid, while middle (SF‐M) achieved through aqueous...

Presence and proliferation of microorganisms in textiles while they are used or stored may cause negative effects on fabrics health people who use them. Such situation can be fought by employing anti-microbial agents to functionalize textiles. Current consumers want their garments offer tested durable antimicrobial benefits. This article includes a bibliographic revision compounds different textiles, which avoid growth development microorganisms; for this reason, there types such as the ones...