Expeditious and eco-friendly fabrication of highly uniform microflower superstructures and their applications in highly durable methanol oxidation and high-performance supercapacitors

2016 ◽  
Vol 4 (31) ◽  
pp. 12253-12262 ◽  
Author(s):  
Sivaprakasam Radhakrishnan ◽  
Hak-Yong Kim ◽  
Byoung-Suhk Kim
Keyword(s):  
Methanol Oxidation ◽  
Copper Sulfide ◽  
High Performance ◽  
Low Cost ◽  
Simple Synthesis ◽  
Potential Applications ◽  
Low Toxicity ◽  
Highly Uniform

It is important to exploit copper sulfide products with desired structures as well as their potential applications owing to their simple synthesis, low cost and low toxicity.

scholarly journals A simple approach to prepare fluorescent molecularly imprinted nanoparticles

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7732-7737
Author(s):  
Fenying Wang ◽  
Dan Wang ◽  
Tingting Wang ◽  
Yu Jin ◽  
Baoping Ling ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Sol Gel ◽  
Silica Sol ◽  
Simple Approach ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Low Toxicity ◽  
Good Biocompatibility ◽  
Molecularly Imprinted Nanoparticles

Fluorescent molecularly imprinted polymer (FMIP) gains great attention in many fields due to their low cost, good biocompatibility and low toxicity. Here, a high-performance FMIP was prepared based on the autocatalytic silica sol–gel reaction.

Bifunctional Flexible Fabrics with Excellent Joule Heating and Electromagnetic Interference Shielding Performance Based on Copper Sulfide/Glass Fiber Composite

Nanoscale ◽  
2021 ◽  
Author(s):  
Binguo Liu ◽  
Qi Zhang ◽  
Yuanhui Huang ◽  
Dong Liu ◽  
Wei Pan ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Copper Sulfide ◽  
High Performance ◽  
Fiber Composite ◽  
Low Cost ◽  
Electronic Systems ◽  
Electromagnetic Interference Shielding ◽  
Glass Fiber Composite ◽  
Wearable Electronic ◽  
Sulfide Glass

Flexible and wearable electronic technology is in great demand with the rising of smart electronic systems. Among this, exploring multifunctional with high performance at low cost has attracted extensive attention...

Advances in preparation, modification, and application of polypropylene membrane

2016 ◽  
Vol 36 (4) ◽  
pp. 329-362 ◽  
Author(s):  
Nurul F. Himma ◽  
Sofiatun Anisah ◽  
Nicholaus Prasetya ◽  
I Gede Wenten
Keyword(s):  
Thermal Stability ◽  
High Performance ◽  
Chemical Resistance ◽  
Low Cost ◽  
Comprehensive Overview ◽  
Preparation Methods ◽  
Good Thermal Stability ◽  
Polypropylene Membrane ◽  
Membrane Fabrication ◽  
Potential Applications

Abstract Polypropylene (PP) is one of the most used polymers for microporous membrane fabrication due to its good thermal stability, chemical resistance, mechanical strength, and low cost. There have been numerous studies reporting the developments and applications of PP membranes. However, PP membrane with high performance is still a challenge. Thus, this article presents a comprehensive overview of the advances in the preparation, modification and application of PP membrane. The preparation methods of PP membrane are firstly reviewed, followed by the modification approaches of PP membrane. The modifications includes hydrophilic and superhydrophobic modification so that the PP membranes become more suitable to be applied either in aqueous applications or in non-aqueous ones. The fouling resistant of hydrophilized PP membrane and the wetting resistant of superhydrophobized PP membrane are then reviewed. Finally, special attention is given to the various potential applications and industrial outlook of the PP membranes.

scholarly journals DESIGN DETAILS OF A LOW COST AND HIGH PERFORMANCE ROBOTIC VISION ARCHITECTURE

2015 ◽  
pp. 141-156
Author(s):  
John V. Vourvoulakis ◽  
John A. Kalomiros ◽  
John N. Lygouras
Keyword(s):  
Video Processing ◽  
High Performance ◽  
Low Cost ◽  
Basic Feature ◽  
Full Detail ◽  
Robotic Vision ◽  
Multiple Camera ◽  
Video Frames ◽  
Potential Applications ◽  
Video Input

The implementation of an advanced real-time, low cost video processing platform capable of supporting a variety of demanding robotic applications is presented. The system is designed as an open project, accessible in full detail and has the potential to grow. It is based on a FPGA plus MCU architecture, allowing the implementation of combined fixed-point and 32-bit floating-point applications with optimized resource allocation. The presented platform is optimally integrated with appropriate controllers, like video-input frame grabbers for multiple camera applications, external SDRAM, as well as USB and VGA interfaces. The processing and interfacing capabilities of the proposed system are illustrated by implementing basic feature extraction and preprocessing tasks, achieving the display of processed video frames at a rate of 30 fps with resolution 640x480. The proposed architecture is evaluated in terms of resource usage, power consumption and cost. Potential applications are also discussed.

Low-cost, highly sensitive and stable pressure sensor based on glass fiber surfacing mat coated with graphene

2019 ◽  
Vol 13 (02) ◽  
pp. 2051002
Author(s):  
Shaowei Lu ◽  
Junchi Ma ◽  
Keming Ma ◽  
Shuai Wang ◽  
Xiangdong Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Fiber ◽  
Pressure Sensor ◽  
High Performance ◽  
Low Cost ◽  
Epoxy Group ◽  
Pressure Sensors ◽  
Superior Performance ◽  
Filtration Method ◽  
Potential Applications

High-performance pressure sensors have caused widespread concern due to the potential applications in 3D-touch technology and wearable electronic devices. Herein, a new type of graphene pressure sensor based on the glass fiber surfacing mat coated with graphene oxide aqueous solution by a spray-vacuum filtration method and HI acid reduction method is reported. It is a simple and highly effective method to reduce graphene oxide films into highly conductive graphene films without destroying their integrity and flexibility at a low temperature based on the nucleophilic substitution reaction. The FTIR, SEM and conductivity tests indicate that the optimum time for graphene oxide to be reduced is 30[Formula: see text]min, under this condition enter the epoxy group has been reacted without damaging the regular sp2 hybrid C atom structure in graphene. The conductivity of the graphene pressure sensor is increased significantly to 23260[Formula: see text]S/m. The monotonic compressing test for 100[Formula: see text]Pa/s and the test of the metal block placement and removal demonstrate that the sensor exhibits relatively high linearity of 99.74% between the response and pressure, the advantage makes the sensor monitor pressure more accurately. More importantly, the pressure sensor based on the glass fiber surfacing mat coated with graphene shows extremely high sensitivity (0.169[Formula: see text][Formula: see text]), fast response time (251[Formula: see text]ms) and good stability for 1000 cycles. Based on its superior performance, it also demonstrates potential applications in measuring pressure and human body’s motions.

scholarly journals Tunable seesaw-like 3D capacitive sensor for force and acceleration sensing

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Jilong Ye ◽  
Fan Zhang ◽  
Zhangming Shen ◽  
Shunze Cao ◽  
Tianqi Jin ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
High Sensitivity ◽  
Capacitive Sensor ◽  
Mechanical Tests ◽  
Structure Design ◽  
Capacitive Sensors ◽  
Wearable Electronics ◽  
Potential Applications ◽  
The Stability

AbstractTo address the resource-competing issue between high sensitivity and wide working range for a stand-alone sensor, development of capacitive sensors with an adjustable gap between two electrodes has been of growing interest. While several approaches have been developed to fabricate tunable capacitive sensors, it remains challenging to achieve, simultaneously, a broad range of tunable sensitivity and working range in a single device. In this work, a 3D capacitive sensor with a seesaw-like shape is designed and fabricated by the controlled compressive buckling assembly, which leverages the mechanically tunable configuration to achieve high-precision force sensing (resolution ~5.22 nN) and unprecedented adjustment range (by ~33 times) of sensitivity. The mechanical tests under different loading conditions demonstrate the stability and reliability of capacitive sensors. Incorporation of an asymmetric seesaw-like structure design in the capacitive sensor allows the acceleration measurement with a tunable sensitivity. These results suggest simple and low-cost routes to high-performance, tunable 3D capacitive sensors, with diverse potential applications in wearable electronics and biomedical devices.

Phototransistors Based on A Lightly Doped P3HT

MRS Advances ◽  
2020 ◽  
Vol 5 (37-38) ◽  
pp. 1975-1982
Author(s):  
Thomas H. Debesay ◽  
Sam-Shajing Sun
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Acid Methyl Ester ◽  
Extensive Study ◽  
The Past ◽  
Polymeric Semiconductor ◽  
Donor Acceptor ◽  
Low Toxicity ◽  
Improved Performance ◽  
P Type

AbstractOrganic/Polymeric Semiconductor (OSC) based devices have been under extensive study for the past three decades due to their intrinsic potential advantages such as lightweight, mechanical flexibility, biocompatibility, low toxicity, abundant material availability, low cost of processing, etc. A phototransistor incorporates the properties and functions of a transistor and photodetector. In this study, a phototransistor based on a donor/acceptor (D/A) pair (photo-doping) was studied and demonstrated. Unlike in organic photovoltaics (OPV) where 1:1 proportion by mass of the donor:acceptor is utilized to make up the active layer, that ratio appears to be too high for phototransistor applications. According to literature, this 1:1 concentration leads to low overall device performance, lack of I-V curve saturation (kink effect), and bipolar behavior. By altering fabrication techniques and doping concentrations, we were able to demonstrate a donor/acceptor based phototransistor with p-type characteristics with improved performance. In this work, we fabricated a high-performance OFET based on a very small amount of Phenyl-C71-butyric acid methyl ester (PCBM) doped into a Poly(3-hexylthiophene) (P3HT) host. With this work, a greater understanding behind the optimization of D/A based phototransistors is advanced.

Reduce the toxicity of prepared copper sulfide nanoparticles

2019 ◽  
Vol 10 (3) ◽  
pp. 2099-2103
Author(s):  
Manar M. Rashed ◽  
Nada H.A. Al-Mudallal ◽  
Ali A. Taha
Keyword(s):  
Antibacterial Activity ◽  
Zeta Potential ◽  
Cell Lines ◽  
Copper Sulfide ◽  
Low Cost ◽  
Bacterial Strains ◽  
Significant Toxicity ◽  
Anti Cancer ◽  
Before And After ◽  
Low Toxicity

Copper sulfide (CuS) nanoparticles have attracted increasing attention from biomedical ‎researchers across the globe, because of their intriguing properties, which have been ‎mainly explored for energy and catalysis related applications. The aim of the study is to ‎prepare CuS NPs by BSA entrapment to reduce the toxicity, characterizing, comparative ‎the toxicity before and after entrapment against bacteria and check the toxicity against RD ‎and L20B cell lines. CuS-BSA NPs was an easy, low toxicity and low cost chemically ‎synthesized. The CuS-BSA NPs was identified though UV-VIS ‎spectrophotometer, FTIR, XRD, SEM, EDX, and Zeta potential. The antibacterial activity ‎against different G-positive and G-negative bacterial strains have been investigated for (2 ‎mg/ml) concentrations of CuS-BSA NPs and commercial CuS. A result showed that CuS-‎BSA NPs have more antibacterial activity than commercial CuS. Using different ‎parameters of CuS-BSA NPs, its anti-cancer bioactivity for every compound synthesized in ‎RD and L20B cell line was explored, and the result proved there was significant toxicity ‎against RD and L20B cell lines.‎

A review on the development of conjugated polymer-based textile thermoelectric generator

2021 ◽  
pp. 152808372199673
Author(s):  
Vivek Jangra ◽  
Subhankar Maity ◽  
Prashant Vishnoi
Keyword(s):  
Conjugated Polymers ◽  
Silicon Germanium ◽  
High Performance ◽  
In Situ Polymerization ◽  
Low Cost ◽  
Lead Telluride ◽  
Energy Scavenging ◽  
Organic Conjugated Polymers ◽  
Potential Applications ◽  
And Performance

Thermoelectric (TE) materials based on conjugated/conductive polymers can directly convert heat into electricity, and thus found promising applications in energy scavenging and cooling technologies. The performance of these thermoelectric materials is governed by different parameters like the nature of the material, thermal stability, electrical conductivity, Seebeck coefficient, and thermal conductivity. Although the traditional inorganic semiconductor materials such as PbTe (Lead Telluride), Bi2Te3 (Bismuth Telluride), SiGe (Silicon-Germanium), SnSe (Tin Selenide), and Skutterudite (CoAs2) are giving high performance, they have some inherent limitations, such as poor processability, toxicity, rare availability, and high cost of manufacturing. Whereas, organic conjugated polymers such as polyacetylene (PA), polyaniline (PANi), Poly(3-hexylthiophene) (P3HT), polypyrrole (PPy), poly 3,4-ethylenedioxythiophene (PEDOT), etc. have low cost of synthesis, light in weight, low toxicity and better processibility. Organic textile thermoelectric generators (T-TEG) can be prepared by in-situ polymerization of the conjugated polymers onto textile substrates. This article reviews the preparation, design and performance of these T-TEGs. Various approaches and scopes of improvement of efficiency of the thermoelectric effect of the T-TEGs are discussed. Various potential applications of the T-TEG in different fields are also described.

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