Use of Proteins Blotted to Polyvinylidene Difluoride Membranes as Immunogens

1998 ◽  
pp. 81-85 ◽  
Author(s):  
Boguslaw Szewczyk ◽  
Donald F. Summers
Keyword(s):  
Polyvinylidene Difluoride

Simply supported FPEDs connected by springs for broadband energy harvesting

2020 ◽  
Vol 64 (1-4) ◽  
pp. 201-210
Author(s):  
Yoshikazu Tanaka ◽  
Satoru Odake ◽  
Jun Miyake ◽  
Hidemi Mutsuda ◽  
Atanas A. Popov ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Evaluation Method ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Functional Materials ◽  
Vibration Energy ◽  
Theoretical Evaluation ◽  
Vibration Energy Harvester ◽  
Polyvinylidene Difluoride ◽  
Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

Exploration of polyvinylidene difluoride (PVDF) for improvement of weathering resistance of textile substrates

2021 ◽  
pp. 1-9
Author(s):  
Bharathi Dasaradhan ◽  
Biswa Ranjan Das ◽  
Thako Hari Goswami ◽  
Namburi Eswara Prasad
Keyword(s):  
Polyvinylidene Difluoride ◽  
Weathering Resistance

Piezocatalysis in ferroelectric Ba0.85Ca0.15Zr0.1Ti0.9O3/polyvinylidene difluoride (PVDF) composite film

2021 ◽  
Vol 130 (8) ◽  
pp. 085107
Author(s):  
Moolchand Sharma ◽  
Gurpreet Singh ◽  
Rahul Vaish
Keyword(s):  
Composite Film ◽  
Polyvinylidene Difluoride

Modelling of a Piezoelectric Polymer Film System for Biosensing Applications

2010 ◽  
Vol 636-637 ◽  
pp. 1206-1211
Author(s):  
Paulo Inácio ◽  
J.N. Marat-Mendes ◽  
Eugen R. Neagu ◽  
C.J. Dias
Keyword(s):  
Polymer Film ◽  
Quartz Crystal ◽  
Electronic Circuit ◽  
Flow Cell ◽  
Film System ◽  
The Finite Element Method ◽  
Polyvinylidene Difluoride ◽  
Piezoelectric Polymer ◽  
Quartz Crystal Microbalances ◽  
Acoustic Wave Devices

Most piezoelectric gravimetric biosensors are based on quartz crystal microbalances or surface acoustic wave devices. In this paper we describe a polymer film system, made of piezoelectric polyvinylidene difluoride (PVDF) and the Immobilon-P membrane (porous PVDF), for biosensing applications. In operation a film is accommodated in a flow cell and connected to an electronic circuit, constituting an oscillatory resonant device; the output signal is its resonance frequency. This device successfully detected the binding between bovine IgG and bovine anti-IgG. Work on the modelling of this film system is presented. Two different approaches are being considered: the finite element method (FEM) and the ABCD matrices. Results comparing theoretical and experimental data are presented.

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