scholarly journals Melt electrowriting of poly(vinylidene difluoride) using a heated collector

2021 ◽  
Author(s):  
Juliane C. Kade ◽  
Paul F. Otto ◽  
Robert Luxenhofer ◽  
Paul D. Dalton
Keyword(s):  
Vinylidene Difluoride

Redox reaction mediated direct synthesis of hierarchical flower-like CuO spheres anchored on electrospun poly(vinylidene difluoride) fiber surfaces at low temperatures

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100228-100234 ◽  
Author(s):  
Yun-Yang Lee ◽  
Hsieh-Yu Li ◽  
Shih-Jiuan Chiu ◽  
Wen-Li Liang ◽  
Pi-Li Yeh ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Rhodamine B ◽  
Redox Reaction ◽  
Low Temperatures ◽  
Direct Synthesis ◽  
Catalytic Membranes ◽  
Vinylidene Difluoride

Flower-like CuO spheres anchored on electrospun PVDF fiber surfaces as catalytic membranes for the photodegradation of rhodamine B aqueous solutions.

scholarly journals Separation of important new platelet glycoproteins (GPIa, GPIc, GPIc*, GPIIa and GMP-140) by f.p.l.c. Characterization by monoclonal antibodies and gas-phase sequencing

1991 ◽  
Vol 279 (2) ◽  
pp. 419-425 ◽  
Author(s):  
B Catimel ◽  
S Parmentier ◽  
L L K Leung ◽  
J L McGregor
Keyword(s):  
Gas Phase ◽  
Polyclonal Antibodies ◽  
Umbilical Vein ◽  
Blood Platelets ◽  
Cdna Libraries ◽  
Membrane Glycoproteins ◽  
Terminal Sequence ◽  
Cdna Sequences ◽  
Functional Studies ◽  
Vinylidene Difluoride

A large number of membrane glycoproteins (around 40) are present on the surface of human blood platelets. Some of these glycoproteins are expressed in relatively small amounts, and their functions, as well as their structure, remain to be elucidated. The aim of the present study was to separate rapidly, under non-denaturing conditions, and characterize minor glycoproteins such as Very Late Antigens (VLA) (GPIa, GPIc, GPIc* and GPIIa) and GMP-140 (also known as PADGEM). VLAs and GMP-140 are respectively members of the integrin and selectin families. Platelet membrane glycoproteins were separated by wheat-germ agglutinin lectin affinity and Mono Q anion-exchange f.p.l.c. Peaks bearing isolated glycoproteins were electrophoresed on one- or two-dimensional SDS/polyacrylamide gels, Western blotted on to Immobilon poly(vinylidene difluoride) membranes and gas-phase-sequenced. The identity of isolated glycoproteins was also obtained by the use of monoclonal or polyclonal antibodies and tryptic peptide maps. Five minor [GPIa, GPIc, GPIc*, GPIIa and GMP 140 (PADGEM)], as well as a major (GPIIIb) glycoprotein, were eluted at low salt concentrations. GPIIb-IIIa and GPIb were eluted at high salt concentrations. The N-terminal sequence of platelet GPIa was identical with that obtained by Takada & Hemler [(1989) J. Cell Biol. 109, 397-407]. However, the N-terminal sequence of platelet GPIc + Ic* and GPIIa were found to differ from those deduced from cDNA sequences isolated from human placenta or umbilical-vein endothelial-cell cDNA libraries. The combined use of f.p.l.c. and gas-phase sequencing techniques provides a very powerful tool to separate and characterize rapidly platelet or other cellular proteins for structural, immunological and functional studies.

scholarly journals Synthesis of new Ln4(Al2O6F2)O2 (Ln = Sm, Eu, Gd) phases with a cuspidine-related structure

IUCrJ ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 128-135 ◽  
Author(s):  
Aroa Morán-Ruiz ◽  
Aritza Wain-Martin ◽  
Alodia Orera ◽  
María Luisa Sanjuán ◽  
Aitor Larrañaga ◽  
...  
Keyword(s):  
Rare Earth ◽  
Low Temperature ◽  
Raman Spectra ◽  
Photoelectron Spectroscopy ◽  
Binding Energies ◽  
Temperature Reaction ◽  
Rietveld Refinements ◽  
X Ray ◽  
Vinylidene Difluoride ◽  
Vacant Position

The first fluorination of the cuspidine-related phases of Ln4(Al2O7□)O2 (where Ln = Sm, Eu, Gd) is reported. A low-temperature reaction with poly(vinylidene difluoride) lead to the fluorine being substituted in place of oxygen and inserted into the vacant position between the dialuminate groups. X-ray photoelectron spectroscopy shows the presence of the F 1s photoelectron together with an increase in Al 2p and rare-earth 4d binding energies supporting F incorporation. Energy-dispersive X-ray spectroscopy analyses are consistent with the formula Ln4(Al2O6F2)O2, confirming that substitution of one oxygen by two fluoride atoms has been achieved. Rietveld refinements show an expansion in the cell upon fluorination and confirm that the incorporation of fluoride in the Ln4(Al2O7□)O2 structure results in changes in Al coordination from four to five. Thus, the isolated tetrahedral dialuminate Al2O7 groups are converted to chains of distorted square-based pyramids. These structural results are also discussed based on Raman spectra.

Poly(Vinylidene Difluoride) Soft Dendritic Colloids as Li-Ion Battery Separators

2021 ◽  
Vol 168 (2) ◽  
pp. 020517
Author(s):  
Salvatore Luiso ◽  
Austin H. Williams ◽  
Michael J. Petrecca ◽  
Sangchul Roh ◽  
Orlin D. Velev ◽  
...  
Keyword(s):  
Li Ion Battery ◽  
Vinylidene Difluoride ◽  
Li Ion

Infrared-driven poly(vinylidene difluoride)/tungsten oxide pyroelectric generator for non-contact energy harvesting

2019 ◽  
Vol 178 ◽  
pp. 26-32 ◽  
Author(s):  
Chang-Mou Wu ◽  
Min-Hui Chou ◽  
Tolesa Fita Chala ◽  
Yoshinobu Shimamura ◽  
Ri-ichi Murakami
Keyword(s):  
Energy Harvesting ◽  
Tungsten Oxide ◽  
Vinylidene Difluoride

scholarly journals Ferroelectric P(VDF-TrFE)/POSS nanocomposite films: compatibility, piezoelectricity, energy harvesting performance, and mechanical and atomic oxygen erosion

RSC Advances ◽  
2020 ◽  
Vol 10 (29) ◽  
pp. 17377-17386 ◽  
Author(s):  
Y. Z. Liu ◽  
H. Zhang ◽  
J. X. Yu ◽  
Z. Y. Huang ◽  
C. Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Atomic Oxygen ◽  
Piezoelectric Coefficient ◽  
Nanocomposite Films ◽  
Vinylidene Difluoride ◽  
Atomic Oxygen Erosion

Poly(vinylidene difluoride) (PVDF) and its copolymers as the polymers with the highest piezoelectric coefficient have been widely used as sensors and generators.

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