A novel inexpensive method for preparation of silk nanofibers from cocoons
نویسندگان
چکیده مقاله:
AbstractIn the present study , a novel method for the production of silk nano fibers are presented . In this way , a mechanical and easy technique is used instead of toxic and costly chemical methods . Also , the separation of silk nano fibers from the cocoon was carried out by mechanical homogenizer and probe ultrasonic homogenizer . After the preparation of silk nanofibers , the product was characterized by Fourier transform infrared spectroscopy (FT - IR) and scanning electron microscope (SEM) . The results were compared with previous techniques and the advantages of the new method were investigated.
منابع مشابه
The impact behaviour of silk cocoons.
Silk cocoons, constructed by silkmoths (Lepidoptera), are protective structural composites. Some cocoons appear to have evolved towards structural and material optimisation in order to sustain impact strikes from predators and hinder parasite ingress. This study investigates the protective properties of silk cocoons with different morphologies by evaluating their impact resistance and damage to...
متن کاملNanocomposite gold-silk nanofibers.
Cell-biomaterial interactions can be controlled by modifying the surface chemistry or nanotopography of the material, to induce cell proliferation and differentiation if desired. Here we combine both approaches in forming silk nanofibers (SNFs) containing gold nanoparticles (AuNPs) and subsequently chemically modifying the fibers. Silk fibroin mixed with gold seed nanoparticles was electrospun ...
متن کاملA Convenient Method for the Preparation of Pheromones from Inexpensive Starting Materials
Many aliphatic compounds having 12, 14, or 16 carbon atoms and one or two double bonds are known to function as “chemical messengers” be tween different sexes of the same insect species [1]. Saturation of a mating area with high concentrations of such a “pheromone” may be used to inhibit olfactory orientation between sexes. Moreover, by using sex attractant pheromones, certain insects may be d...
متن کاملPreparation and characterization of biomimetic silk fibroin/chitosan composite nanofibers by electrospinning for osteoblasts culture
In this study, we have successfully fabricated electrospun bead-free silk fibroin [SF]/chitosan [CS] composite nanofibers [NFs] covering the whole range of CS content (0%, 25%, 50%, 75%, and 100%). SF/CS spinning solutions were prepared in a mixed solvent system of trifluoroacetic acid [TFA] and dichloromethane. The morphology of the NFs was observed by scanning electron microscope, and the ave...
متن کاملA Novel Method for Preparation of Alumina-Supported Rhenium-Cesium Catalyst, Re-Cs/-Al2O3
Alumina-supported Cs3[Re(C2O4)3] precursor has been synthesized for preparation of Re-Cs/g-Al2O3 catalyst. Cs3[Re(C2O4)3] has been prepared from the reaction of ReCl3 with H2C2O4.2H2O and CsCl in ...
متن کاملProduction of silk sericin/silk fibroin blend nanofibers
Silk sericin (SS)/silk fibroin (SF) blend nanofibers have been produced by electrospinning in a binary SS/SF trifluoroacetic acid (TFA) solution system, which was prepared by mixing 20 wt.% SS TFA solution and 10 wt.% SF TFA solution to give different compositions. The diameters of the SS/SF nanofibers ranged from 33 to 837 nm, and they showed a round cross section. The surface of the SS/SF nan...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 7 شماره Issue 3, pp. 242-351.
صفحات 335- 343
تاریخ انتشار 2019-07-01
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023