Polyvinylidene fluoride/Silk fibroin‐based bio‐piezoelectric nanofibrous scaffolds for biomedical application

2021 ◽  
Author(s):  
Jeong Chan Lee ◽  
Il Won Suh ◽  
Chan Hee Park ◽  
Cheol Sang Kim
Keyword(s):  
Silk Fibroin ◽  
Polyvinylidene Fluoride ◽  
Biomedical Application ◽  
Nanofibrous Scaffolds

Fabrication of Piezoelectric Polyvinylidene Fluoride (PVDF) Polymer-Based Tactile Sensor Using Electrospinning Method

2016 ◽  
Vol 12 ◽  
pp. 42-50 ◽  
Author(s):  
N. Manikandan ◽  
S. Muruganand ◽  
K. Sriram ◽  
P. Balakrishnan ◽  
A. Suresh Kumar
Keyword(s):  
Polyvinylidene Fluoride ◽  
Biomedical Application ◽  
Electric Pulse ◽  
High Sensitivity ◽  
Tactile Sensor ◽  
Main Role ◽  
Nano Structure ◽  
Sem Image ◽  
Β Phase ◽  
Α Phase

The polyvinylidene fluoride (PVDF) nanofiber has widely investigated as a sensor and transducer material, because of its high piezo and Ferro electric properties. The novel nano structure of PVDF has attracted considerable interest in the bio sensing and biomedical application. This paper deals with PVDF Tactile sensor. Basically The PVDF acts as piezoelectric effect which convert load into electrical signals. The tactile sensor has a main role for visual handicap and robotics. Any physical activities of robotic in all industrial the tactile sensor is a crucible role, whether it can left the object or handling glass parts pressure of object is main. The Sandwich type PVDF base tactile sensor has been fabricated using nanofiber. Using electro spinning method, the PVDF based nanofiber coated over coper the electrodes. In normal, the PVDF has α-phase and while applying electric pulse the PVDF polymer would be changed from α-phase into β-phase. Only in β-phase, the PVDF act as piezo electrics sensor and measure the piezoelectricity simultaneously measure pressure and temperature in real time. The pressure was monitored from the change in the electrical resistance via the piezo resistance of the material. The enhancement of PVDF properties has been carried by using SEM. The SEM image result showed that the size of nanofiber, the size of nanofiber is varied in the range of (180 nm-400 nm) with smooth surface. The X-Ray diffraction has shown that the PVDF was aggregated with the β-phase crystalline nature. Due to β-phase it was act as a piezo electric prosperity’s and its results are very high sensitivity.

Fabrication and Characterization of Vitamin E TPGS Loaded Silk Fibroin/Hyaluronic Acid Nanofibrous Scaffolds

2013 ◽  
Vol 721 ◽  
pp. 274-277
Author(s):  
Li Li Ji ◽  
Qiao Ling Li ◽  
Zeng Hu Yang ◽  
Wei Jing Hu ◽  
Kui Hua Zhang
Keyword(s):  
Hyaluronic Acid ◽  
Vitamin E ◽  
Silk Fibroin ◽  
Ethanol Vapor ◽  
Random Coil ◽  
Burst Release ◽  
Nanofibrous Scaffolds ◽  
Vitamin E Tpgs ◽  
Polyethylene Glycol 1000 ◽  
Β Sheet

Vitamin E d-alpha-tocopheryl polyethylene glycol 1000 succinate (VE TPGS) loaded silk fibroin (SF)/ hyaluronic acid (HA) nanofibrous scaffolds were fabricated by means of electrospinning to biomimic the natural extracellular matrix. Scanning electronic microscopy (SEM) results indicated that electrospun VE TPGS loaded SF/HA nanofibers were ribbon-shaped, the width of nanofibers decreased slightly with the addition of VE TPGS to SF/HA blended solutions. Fourier transform infrared (FTIR) spectroscopy and Wide-angle X-ray diffraction (WAXD) curves revealed that VE TPGS did not induce SF conformation from random coil to β-sheet. SF conformation converted from random coil to β-sheet after being treated with 75% ethanol vapor. In vitro release studies confirmed VE TPGS had no obvious burst release and present good release behavior.

Genipin-crosslinked silk fibroin/hydroxybutyl chitosan nanofibrous scaffolds for tissue-engineering application

2010 ◽  
Vol 95A (3) ◽  
pp. 870-881 ◽  
Author(s):  
Kuihua Zhang ◽  
Yongfang Qian ◽  
Hongsheng Wang ◽  
Linpeng Fan ◽  
Chen Huang ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Silk Fibroin ◽  
Engineering Application ◽  
Tissue Engineering Application ◽  
Nanofibrous Scaffolds

scholarly journals Immobilization of silk fibroin on the surface of PCL nanofibrous scaffolds for tissue engineering applications

2018 ◽  
Vol 135 (37) ◽  
pp. 46684 ◽  
Author(s):  
Alireza Khosravi ◽  
Laleh Ghasemi-Mobarakeh ◽  
Hossein Mollahosseini ◽  
Fatemeh Ajalloueian ◽  
Maryam Masoudi Rad ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Silk Fibroin ◽  
Engineering Applications ◽  
Nanofibrous Scaffolds

Green electrospun nanocuprous oxide–poly(ethylene oxide)–silk fibroin composite nanofibrous scaffolds for antibacterial dressings

2019 ◽  
Vol 136 (28) ◽  
pp. 47730 ◽  
Author(s):  
Zexin Zheng ◽  
Kuihua Zhang ◽  
Bo Wu ◽  
Haoyi Yang ◽  
Mengqi Wang ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Silk Fibroin ◽  
Nanofibrous Scaffolds ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Porous Silk Fibroin Membrane as a Potential Scaffold for Bone Regeneration

2008 ◽  
Vol 396-398 ◽  
pp. 187-190 ◽  
Author(s):  
Raquel Farias Weska ◽  
Grínia M. Nogueira ◽  
Wellington C. Vieira ◽  
Marisa Masumi Beppu
Keyword(s):  
Bone Regeneration ◽  
Silk Fibroin ◽  
Biomedical Application ◽  
Early Stage ◽  
Bone Matrix ◽  
Octacalcium Phosphate ◽  
Ion Concentration ◽  
Phosphate Deposits

The requirements for scaffolds for bone tissue engineering include appropriate chemistry, morphology and structure to promote cell adhesion and synthesis of new bone matrix. Silk fibroin (SF) represents an important biomaterial for biomedical application, due to its suitable mechanical properties, biodegradability, biocompatibility, and versatility in processing. Our group has developed a new method to obtain a porous SF membrane, and the study of its potential for use as a scaffold for bone regeneration was the aim of this study. Porous membranes were obtained from SF solution, through the compression of a material generated by phase separation. For in vitro calcification experiments, porous SF membrane samples were immersed in SBF at pH 7.4 placed in polyethylene flasks. The experiments were carried out for seven days, at 36.5±0.5 °C. After 48 and 96h, the solutions were changed for fresh SBF with the ion concentration 1.5-fold higher than that of the standard one, to accelerate the calcification process. The characterization of morphology and composition of samples was performed by using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS), respectively. The SEM micrographs indicated that the porous SF membranes presented calcium phosphate deposits after undergoing in vitro calcification. These results were confirmed by EDS spectra, which showed a stoichiometric molar Ca/P ratio ranging from 1.27 to 1.52. This fact may suggest that calcification deposits consisted of mixtures of HAP (Ca/P ratio = 1.67) and transient HAP precursor phases, such as octacalcium phosphate (Ca/P = 1.33) and dicalcium phosphate dehydrate (Ca/P = 1), indicating early stage mineralization. The porous silk fibroin membrane analysed in the current study is a promising material to be used as scaffolds for bone regeneration.

Preparation and characterization of polyhydroxybutyrate-co -hydroxyvalerate/silk fibroin nanofibrous scaffolds for skin tissue engineering

2014 ◽  
Vol 55 (4) ◽  
pp. 907-916 ◽  
Author(s):  
Caihong Lei ◽  
Hailin Zhu ◽  
Jingjing Li ◽  
Jiuming Li ◽  
Xinxing Feng ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Silk Fibroin ◽  
Skin Tissue ◽  
Skin Tissue Engineering ◽  
Nanofibrous Scaffolds

Hydroxyapatite-containing silk fibroin nanofibrous scaffolds for tissue-engineered periosteum

RSC Advances ◽  
2016 ◽  
Vol 6 (23) ◽  
pp. 19463-19474 ◽  
Author(s):  
Xili Ding ◽  
Chengqi Wu ◽  
Tong Ha ◽  
Lizhen Wang ◽  
Yan Huang ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Nanofibrous Scaffold ◽  
Nanofibrous Scaffolds ◽  
One Step

A simple, one-step technology is developed to generate a hydroxyapatite (HA)-containing silk fibroin nanofibrous scaffold which has great potential as osteogenesis promoting scaffolds for constructing tissue-engineered periosteum.

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