Studies on the preparation and properties of conductive polymer. I. Novel method to prepare metalized plastic from metal chelate of poly(vinyl alcohol)

1990 ◽  
Vol 40 (12) ◽  
pp. 53-66 ◽  
Author(s):  
Chih-Chao Yen ◽  
Teh-Chou Chang ◽  
Hideo Kakinoki
Keyword(s):  
Vinyl Alcohol ◽  
Metal Chelate ◽  
Conductive Polymer ◽  
Poly Vinyl Alcohol ◽  
Novel Method

Development of a Flexible Conductive Polymer Membrane on Electroactive Hydrogel Microfibers

2009 ◽  
Vol 1234 ◽  
Author(s):  
Maria Joseph Bassil ◽  
Michael Ibrahim Ibrahim ◽  
Eddy Souaid ◽  
Georges El Haj Moussa ◽  
Mario Remond El Tahchi ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Conducting Polymers ◽  
Vinyl Alcohol ◽  
Conductive Polymer ◽  
The Other ◽  
Time Response ◽  
Poly Vinyl Alcohol ◽  
Artificial Muscles ◽  
Problem Of Time ◽  
Gel Membranes

AbstractConducting polymers and hydrogels are two classes of polymers that currently receive an increasing attention in the field of biomaterials, particularly for their application in the assembly of artificial muscles. In this paper we present the development of Polyacrylamide (PAAM) microfibers and polyaniline (PANI) - poly vinyl alcohol (PVA) conductive gel membrane.The fabricated PAAM microfibers have diameters between 1 and 12μm depending on the preparation parameters. These microfibers respond instantaneously to 100mV electrical stimulation, which solves the problem of time response of the hydrogels. On the other hand, we showed that the inclusion of conducting chains within a crosslinked gel matrix allows combining the conductivity of the PANI with the mechanical flexibility of PVA in order to provide flexible gel membranes that can adhere to the PAAM microfibers to ensure their electrical stimulation.

A novel method to prepare poly(vinyl alcohol) water-soluble fiber with narrowly dissolving temperature range

2012 ◽  
Vol 125 (4) ◽  
pp. 2956-2962 ◽  
Author(s):  
Bin Wang ◽  
Fan Zhang ◽  
Mengjin Jiang ◽  
Guangdou Ye ◽  
Jianjun Xu
Keyword(s):  
Vinyl Alcohol ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Soluble Fiber ◽  
Temperature Range ◽  
Alcohol Water ◽  
Novel Method

scholarly journals Preparation of a Nanoscaled Poly(vinyl alcohol)/Hydroxyapatite/DNA Complex Using High Hydrostatic Pressure Technology for In Vitro and In Vivo Gene Delivery

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Tsuyoshi Kimura ◽  
Yoichi Nibe ◽  
Seiichi Funamoto ◽  
Masahiro Okada ◽  
Tsutomu Furuzono ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
High Hydrostatic Pressure ◽  
Vinyl Alcohol ◽  
Transgene Expression ◽  
Transfection Efficiency ◽  
Endosomal Escape ◽  
Poly Vinyl Alcohol ◽  
Dna Nanoparticles ◽  
Novel Method

Our previous research showed that poly(vinyl alcohol) (PVA) nanoparticles incorporating DNA with hydrogen bonds obtained by high hydrostatic pressurization are able to deliver DNA without any significant cytotoxicity. To enhance transfection efficiency of PVA/DNA nanoparticles, we describe a novel method to prepare PVA/DNA nanoparticles encapsulating nanoscaled hydroxyapatites (HAps) prepared by high hydrostatic pressurization (980 MPa), which is designed to facilitate endosomal escape induced by dissolving HAps in an endosome. Scanning electron microscopic observation and dynamic light scattering measurement revealed that HAps were significantly encapsulated in PVA/HAp/DNA nanoparticles. The cytotoxicity, cellular uptake, and transgene expression of PVA/HAp/DNA nanoparticles were investigated using COS-7 cells. It was found that, in contrast to PVA/DNA nanoparticles, their internalization and transgene expression increased without cytotoxicity occurring. Furthermore, a similar level of transgene expression between plasmid DNA and PVA/HAp/DNA nanoparticles was achieved using in vivo hydrodynamic injection. Our results show a novel method of preparing PVA/DNA nanoparticles encapsulating HAp nano-crystals by using high hydrostatic pressure technology and the potential use of HAps as an enhancer of the transfection efficiency of PVA/DNA nanoparticles without significant cytotoxicity.

A Novel Method for Preparing Poly(vinyl alcohol) Hydrogels: Preparation, Characterization, and Application

2017 ◽  
Vol 56 (28) ◽  
pp. 7971-7976 ◽  
Author(s):  
Shuaijiang Ma ◽  
Shiwei Wang ◽  
Qian Li ◽  
Yuting Leng ◽  
Lianhui Wang ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Novel Method

Improvement in physical and electrical properties of poly(vinyl alcohol) hydrogel conductive polymer composites

2015 ◽  
Vol 132 (28) ◽  
pp. n/a-n/a ◽  
Author(s):  
Winatthakan Phuchaduek ◽  
Tongsai Jamnongkan ◽  
Ubolluk Rattanasak ◽  
Siridech Boonsang ◽  
Supranee Kaewpirom
Keyword(s):  
Electrical Properties ◽  
Polymer Composites ◽  
Vinyl Alcohol ◽  
Conductive Polymer ◽  
Poly Vinyl Alcohol ◽  
Conductive Polymer Composites
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