Fabrication of Ag Nanoparticles/poly(3,4-ethylenedioxythiophene) Nanocomposite Electrodes by Ink-jet Printing

2006 ◽  
Vol 920 ◽  
Author(s):  
Chang Seoul ◽  
Jin heon Kim ◽  
Tea-Heon Kim ◽  
Chang Seoul
Keyword(s):  
Chemical Stability ◽  
High Surface ◽  
Conductive Polymer ◽  
Volume Ratio ◽  
Plastic Substrates ◽  
Ag Particles ◽  
Ink Jet ◽  
Potential Applications ◽  
Jet Printing ◽  
First Time

AbstractThe conductive polymer poly (3,4-Ethylenedioxythiophene) (PEDOT) is a low band-gap polymer with high charge mobility and good thermal and chemical stability. Nanosized Ag particles have found many potential applications in technical fields because of their reduced sizes, high surface-to-volume ratio, and relatively high chemical stability in air. In this report, 3,4-Ethylenedioxythiophene (EDOT) was used as the reductant for the first time in the preparation of silver nanoparticles by the reduction of AgNO3 in water. And Ag/PEDOT nanoparticles composites conducting films deposited by inkjet printing technique on plastic substrates.

scholarly journals Ink-Jet Printing of Gluconobacter oxydans: Micropatterned Coatings As High Surface-to-Volume Ratio Bio-Reactive Coatings

Coatings ◽  
2013 ◽  
Vol 4 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Marcello Fidaleo ◽  
Nadia Bortone ◽  
Mark Schulte ◽  
Michael Flickinger
Keyword(s):  
High Surface ◽  
Volume Ratio ◽  
Gluconobacter Oxydans ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

scholarly journals Nanoporous Metallic Films

2021 ◽  
Author(s):  
Swastic ◽  
Jegatha Nambi Krishnan
Keyword(s):  
Thermal Conductivity ◽  
High Surface ◽  
Volume Ratio ◽  
Metallic Films ◽  
Top Down ◽  
Drug Delivery Vehicles ◽  
Energy Applications ◽  
Potential Applications ◽  
Current Scenario ◽  
Delivery Vehicles

Nanoporous metallic films are known to have high surface to volume ratio due to the presence of pores. The presence of pores and ligaments make them suitable for various critical applications like sensing, catalysis, electrodes for energy applications etc. Additionally, they also combine properties of metals like good electrical and thermal conductivity and ductility. They can be fabricated using top-down or bottom-up approaches also known as dealloying and templating which give the fabricator room to tailor properties according to need. In addition, they could find potential applications in many relevant fields in current scenario like drug delivery vehicles. However, there is a long way to go to extract its whole potential.

Adsorption potential of nanocomposites for the removal of toxins in healthcare

2020 ◽  
Vol 16 ◽  
Author(s):  
Pravin Shende ◽  
Nikita P. Devlekar
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Industrial Wastewater ◽  
Biological Systems ◽  
High Surface ◽  
Volume Ratio ◽  
Cost Effective ◽  
Isotherm Models ◽  
Potential Applications ◽  
Enhanced Adsorption

: Industrial wastewater is one of the by-products of several industries and it consists of water that requires treatment before it is discharged in water bodies. The presence of toxins in wastewater such as dyes and heavy metals is hazardous to human health and requires effective removal to reduce environmental pollution. Industrial wastewater treatment has become a global concern in healthcare and environment leading to the development of various technologies for the removal of toxins from wastewater. Various processes and technologies such as advanced oxidation processes, adsorption and membrane technology show potential in treating industrial wastewater. Another source of toxins in the form of pesticides is harmful to human health leading to severe health problems. Nanocomposites show potential as efficient adsorbents for the removal of toxins owing to the enhanced adsorption capacity, promising physicochemical properties and high surface-to-volume ratio due to nanoscale dimension. Nanocomposites are cost effective and efficient nanoadsorbents for the removal of various toxins. This review focuses on the potential applications of nanocomposites as adsorbents for the removal of toxins like dyes, heavy metals and pesticides from wastewater and biological systems. The use of nanocomposites as efficient adsorbents in the removal of toxins, various isotherm models and adsorption kinetics applied in the mechanism of adsorption are also discussed in the article. In the near future, nanocomposites may provide a simple, economical and efficient adsorption system for the removal of toxins from wastewater and biological systems.

Ink-Jet Printing of Carbon Nanotube Thin-Film Transistors on Flexible Plastic Substrates

2009 ◽  
Vol 2 ◽  
pp. 025005 ◽  
Author(s):  
Taishi Takenobu ◽  
Noriko Miura ◽  
Sheng-Yi Lu ◽  
Haruya Okimoto ◽  
Takeshi Asano ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Nanotube ◽  
Thin Film Transistors ◽  
Ink Jet Printing ◽  
Plastic Substrates ◽  
Ink Jet ◽  
Jet Printing

A Novel Formaldehyde Gas Sensor Based on Ag-LaFeO3 Using Molecular Imprinting Technique

2016 ◽  
Vol 847 ◽  
pp. 287-293
Author(s):  
Yu Min Zhang ◽  
Chang Yi Hu ◽  
Jin Zhang ◽  
Qing Ju Liu ◽  
Qin Zhu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Molecular Imprinting ◽  
High Selectivity ◽  
High Surface ◽  
Volume Ratio ◽  
Substrate Material ◽  
Small Dimension ◽  
Molecular Imprinting Technique ◽  
First Time

A novel gas sensor for the determination of formaldehyde was developed based on molecular imprinting technique (MIT). MIT was for the first time used to recognize small organic molecule by our group. The molecular imprinting nanoparticles (MINs) with a small dimension which possess extremely high surface-to-volume ratio were synthesized using imprinting polymerization with formaldehyde as template and Ag-LaFeO3 as substrate material. The structure of the MINs is orthogonal perovskite. And then the MINs were printed onto an alumina tube. Subsequently, a high selectivity molecular imprinting gas sensor for detection of formaldehyde was achieved. At 86°C, the response to 0.5 ppm formaldehyde based on the sensor is 16, and the response is lower than 2 for the other test gases. The response time and recovery time are 55 s and 40 s, respectively.

scholarly journals Preparation and Characterization of Thin Conductive Polymer Films on the base of PEDOT:PSS by Ink-Jet Printing

2013 ◽  
Vol 44 ◽  
pp. 120-129 ◽  
Author(s):  
Nikola Perinka ◽  
Chang Hyun Kim ◽  
Marie Kaplanova ◽  
Yvan Bonnassieux
Keyword(s):  
Polymer Films ◽  
Conductive Polymer ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

In situ experimentation: Seeing is believing

1989 ◽  
Vol 47 ◽  
pp. 610-611
Author(s):  
E. Paul Butler
Keyword(s):  
Environmental Control ◽  
High Surface ◽  
Volume Ratio ◽  
List Type ◽  
Voltage Electron ◽  
Specimen Holder ◽  
High Voltage Electron Microscope ◽  
Two Factors ◽  
First Time

The advent of the high voltage electron microscope (HVEM) in the early 1970's initiated a period of intense interest and growth in dynamic in situ experimentation. The two factors responsible for this change were:– increased volume in the pole-piece gap– increased penetration of thicker samplesIncreased volume freed up space for the stage designer to construct complex yet robust and reliable stages capable of heating/cooling, deformation and environmental control. His task was made easier in side entry stage configurations, which simplified the job of supplying services to and from the specimen holder and provided one ready made axis of tilt along the rod itself. Increased penetration made it possible to observe the true course of many reactions for the first time, overcoming the effects of high surface/volume ratio which so often resulted in a distortion of reaction events in very thin specimens.

Role of Block Copolymers in Tissue Engineering Applications

2021 ◽  
pp. 1-14
Author(s):  
Sairish Malik ◽  
Subramanian Sundarrajan ◽  
Tanveer Hussain ◽  
Ahsan Nazir ◽  
Seeram Ramakrishna
Keyword(s):  
Tissue Engineering ◽  
Block Copolymers ◽  
Microphase Separation ◽  
High Surface ◽  
Engineering Application ◽  
Volume Ratio ◽  
Tissue Engineering Application ◽  
Electrospinning Technique ◽  
Potential Applications ◽  
Broad Variety

Research on synthesis, characterization, and understanding of novel properties of nanomaterials has led researchers to exploit their potential applications. When compared to other nanotechnologies described in the literature, electrospinning has received significant interest due to its ability to synthesize novel nanostructures (such as nanofibers, nanorods, nanotubes, etc.) with distinctive properties such as high surface-to-volume ratio, porosity, various morphologies such as fibers, tubes, ribbons, mesoporous and coated structures, and so on. Various materials such as polymers, ceramics, and composites have been fabricated using the electrospinning technique. Among them, polymers, especially block copolymers, are one of the useful and niche systems studied recently owing to their unique and fascinating properties in both solution and solid state due to thermodynamic incompatibility of the blocks, that results in microphase separation. Morphology and mechanical properties of electrospun block copolymers are intensely influenced by quantity and length of soft and hard segments. They are one of the best studied systems to fit numerous applications due to a broad variety of properties they display upon varying the composition ratio and molecular weight of blocks. In this review, the synthesis, fundamentals, electrospinning, and tissue engineering application of block copolymers are highlighted.

scholarly journals Conductive Polyaniline Patterns on Electrospun Polycaprolactone/Hydroxyapatite Scaffolds for Bone Tissue Engineering

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4837
Author(s):  
Izabella Rajzer ◽  
Monika Rom ◽  
Elżbieta Menaszek ◽  
Janusz Fabia ◽  
Ryszard Kwiatkowski
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Bone Cells ◽  
Conductive Polymer ◽  
X Ray Diffraction ◽  
Ink Jet ◽  
Before And After ◽  
Jet Printing ◽  
Conductive Polyaniline

Currently, the challenge for bone tissue engineering is to design a scaffold that would mimic the structure and biological functions of the extracellular matrix and would be able to direct the appropriate response of cells through electrochemical signals, thus stimulate faster bone formation. The purpose of the presented research was to perform and evaluate PCL/n-HAp scaffolds locally modified with a conductive polymer-polyaniline. The material was obtained using electrospinning, and a simple ink-jet printing method was applied to receive the conductive polyaniline patterns on the surface of the electrospun materials. The samples of scaffolds were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal analysis (DSC, TGA), and infrared spectroscopy (FTIR) before and after immersion of the material in Simulated Body Fluid. The effect of PANI patterns on changes in the SBF mineralization process and cell morphology was evaluated in order to prove that the presented material enables the growth and proliferation of bone cells.

Effect of Process Parameters on Continuous Nanofiber Yarn Using Two Oppositely Charged Spinnerets

2013 ◽  
Vol 821-822 ◽  
pp. 32-35
Author(s):  
Xiao E Wang ◽  
Wei Jie Gao ◽  
Kun Wang ◽  
Yong Liu ◽  
Jie Fan
Keyword(s):  
Process Parameters ◽  
Applied Voltage ◽  
High Surface ◽  
High Surface Area ◽  
Volume Ratio ◽  
Electrospinning Technique ◽  
Nanofiber Yarn ◽  
Potential Applications ◽  
Good Potential ◽  
Oppositely Charged

Nanofiber nonwoven has been used in many fields due to the high surface area to volume ratio of the nanofibers and other extremely excellent properties. Nanofiber yarn, which is composed of long nanofiber with some twists for expanding nanofibers application, has been a challenging. A continuous nanofiber yarn was fabricated by a electrospinning technique with two oppositely charged spinnerets system in this work. The effect of process parameters such as applied voltage, the distance and the angle between the two spinnerets were examined in detail. The optimum parameters obtained included that the applied voltage was ±16kV, the distance and the angle between the two spinnerets were 8cm and 120o respectively. The nanofiber yarn has good potential applications in textile, medical, and biology.

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