Silk fibroin-Yb3+/Er3+:YAG composite films and their thermometric applications based on up-conversion luminescence

Polymer ◽  
2022 ◽  
pp. 124541
Author(s):  
Roberta S. Pugina ◽  
Douglas L. da Silva ◽  
André Riul ◽  
Manoel L. da Silva-Neto ◽  
Anderson S.L. Gomes ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Composite Films

SILK FIBROIN FILMS CRYSTALLIZED BY MULTIWALLED CARBON NANOTUBES

2008 ◽  
Vol 22 (09n11) ◽  
pp. 1807-1812 ◽  
Author(s):  
H.-S. KIM ◽  
W.-I. PARK ◽  
Y. KIM ◽  
H.-J. JIN
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Silk Fibroin ◽  
Composite Films ◽  
Tensile Modulus ◽  
Multiwalled Carbon ◽  
Regenerated Silk Fibroin ◽  
Silk Films ◽  
Β Sheet

Silk films prepared from regenerated silk fibroin are normally stabilized by β-sheet formation through the use of solvents (methanol, water etc.). Herein, we report a new method of preparing water-stable films without a β-sheet conformation from regenerated silk fibroin solutions by incorporating a small amount (0.2 wt%) of multiwalled carbon nanotubes (MWCNTs). To extend the biomaterial utility of silk proteins, forming water-stable silk-based materials with enhanced mechanical properties is essential. Scanning electron microscopy and transmission electron microscopy were used to observe the morphology of the MWCNT-incorporated silk films. The wide-angle X-ray diffraction provided clear evidence of the crystallization of the silk fibroin induced by MWCNT in the composite films without any additional annealing processing. The tensile modulus and strength of the composite films were improved by 108% and 51%, respectively, by the incorporation of 0.2 wt% of MWCNTs, as compared with those of the pure silk films. The method described in this study will provide an alternative means of crystallizing silk fibroin films without using an organic solvent or blending with any other polymers, which may be important in biomedical applications.

Strong composite films with layered structures prepared by casting silk fibroin–graphene oxide hydrogels

Nanoscale ◽  
2013 ◽  
Vol 5 (9) ◽  
pp. 3780 ◽  
Author(s):  
Liang Huang ◽  
Chun Li ◽  
Wenjing Yuan ◽  
Gaoquan Shi
Keyword(s):  
Graphene Oxide ◽  
Silk Fibroin ◽  
Composite Films ◽  
Layered Structures

Study on Preparation and Mechanical Intensity of Nano-Mg(OH)2/Tussah Silk Fibroin Composite Membrane

2011 ◽  
Vol 391-392 ◽  
pp. 1109-1112
Author(s):  
Xiao Xu Xu
Keyword(s):  
Silk Fibroin ◽  
Composite Membrane ◽  
Composite Films ◽  
Regenerated Silk Fibroin ◽  
Tussah Silk Fibroin

In this article, new tussah silk fibroin films with nano-Mg(OH)2were prepared. The composite films were characterized by SEM、DSC、TG、and IR. The experiment showed that the nano-Mg(OH)2particle was dispersed in the regenerated silk fibroin. DSC revealed that the Tmof the composite films was increased. TG showed stability of the composite films could be increased .The experiment of IR showed that these conclusions were right.

The Preparation of Silk Fibroin Modified PBT-co-PBS/PEG Composite Films and their Effects on Clinical Human Salivary Epithelial Cells Transplantation

2013 ◽  
Vol 18 ◽  
pp. 29-42
Author(s):  
Jie Zhu ◽  
Yue Ming Zhang ◽  
Zhi Cheng Tao ◽  
Nan Wei Xu ◽  
Li Qun Wang ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Plasma Treatment ◽  
Silk Fibroin ◽  
High Surface ◽  
Composite Films ◽  
Contact Angles ◽  
Butylene Succinate ◽  
Poly Ethylene ◽  
Surface Modified ◽  
Salivary Epithelial Cells

We reported the preparation of surface modified poly(butylene terephthalate)-co-poly(butylene succinate)-b-poly(ethylene glycol) (i.e. PBT-co-PBS/PEG) films by three methods: silk fibroin coating, SO2 plasma treatment and silk fibroin anchoring. The obtained composite films were named SF/(PBT-co-PBS/PEG), SO2/(PBT-co-PBS/PEG) and SF/SO2/(PBT-co-PBS/PEG), respectively. Their surface properties were characterized by contact angles, surface energies and XPS. The biocompatibility of the films were further evaluated by the morphology, attachment, proliferation and viability of human salivary epithelial cells (HSG cells). Results revealed that SF/SO2/(PBT-co-PBS/PEG) possessed the high surface free energy (59.67 mJ/m2) and could immobilize a great amount of fibroin (SF surface coverage: 26.39 wt%), which attributed to the formation of such polar groups as hydrosulfide group, sulfonic group, carboxyl and carbonyl ones in the process of SO2 plasma treatment. The cell tests suggested that the silk fibroin anchoring could significantly enhance the biocompatibility of PBT-co-PBS/PEG, which implied the potential application of fibroin modified PBT-co-PBS/PEG for clinical HSG cells transplantation in artificial salivary gland constructs.

scholarly journals STUDIES ON NANO-TiO2 MODIFIED SILK FIBROIN COMPOSITE FILMS

2010 ◽  
Vol 006 (5) ◽  
pp. 649-653
Author(s):  
Jianyong CHEN ◽  
Xinxing FENG ◽  
Dan XU
Keyword(s):  
Silk Fibroin ◽  
Composite Films

Highly flexible and conductive composite films of silk fibroin and silver nanowires for optoelectronic devices

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 50878-50882 ◽  
Author(s):  
Ning Qi ◽  
Bing Zhao ◽  
Shu-Dong Wang ◽  
Salem S. Al-Deyab ◽  
Ke-Qin Zhang
Keyword(s):  
Silk Fibroin ◽  
Silver Nanowires ◽  
Composite Films ◽  
Optoelectronic Devices ◽  
Silver Nanowire ◽  
Ion Sputtering ◽  
Conductive Composite

Silver nanowire-coated silk fibroin composite films assisted by ion sputtering exhibited excellent flexibility, conductivity, which used to light LED device.

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