scholarly journals A Molecularly Imprinted Electrochemical Gas Sensor to Sense Butylated Hydroxytoluene in Air

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Shadi Emam ◽  
Adedokun Adedoyin ◽  
Xiaohua Geng ◽  
Mohsen Zaeimbashi ◽  
Jason Adams ◽  
...  
Keyword(s):  
Conductive Polymer ◽  
Gas Analysis ◽  
Butylated Hydroxytoluene ◽  
Carbon Substrate ◽  
Exhaled Breath ◽  
Molecularly Imprinted ◽  
Target Molecule ◽  
Sensor Resistance ◽  
Reduced Graphene ◽  
Glassy Carbon Substrate

Alzheimer’s disease (AD) is a neurodegenerative disease, which affects millions of people worldwide. Curing this disease has not gained much success so far. Exhaled breath gas analysis offers an inexpensive, noninvasive, and immediate method for detecting a large number of diseases, including AD. In this paper, a new method is proposed to detect butylated hydroxytoluene (BHT) in the air, which is one of the chemicals found in the breath print of AD patients. A three-layer sensor was formed through deposition of a thin layer of graphene onto a glassy carbon substrate. Selective binding of the analyte was facilitated by electrochemically initiated polymerization of a solution containing the desired target molecule. Subsequent polymerization and removal of the analyte yielded a layer of polypyrrole, a conductive polymer, on top of the sensor containing molecularly imprinted cavities selective for the target molecule. Two sets of sensors have been developed. First, the graphene sensor has been fabricated with a layer of reduced graphene oxide (RGO) and tested over 5–100 part per million (ppm). For the second batch, Prussian blue was added to graphene before polymerization, mainly for enhancing the electrochemical properties. The sensor was tested over 0.02-1 parts per billion (ppb) level of concentration while the sensor resistance has been monitored.

Facile synthesis of silver-decorated reduced graphene oxide as a hybrid filler material for electrically conductive polymer composites

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15070-15076 ◽  
Author(s):  
Linxiang He ◽  
Sie Chin Tjong
Keyword(s):  
Graphene Oxide ◽  
Polymer Composites ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
Conductive Polymer ◽  
Facile Synthesis ◽  
Hybrid Filler ◽  
Electrically Conductive ◽  
Conductive Polymer Composites ◽  
Reduced Graphene

Nano silver-decorated reduced graphene oxide (Ag–RGO) sheets were synthesized by simply dissolving graphite oxide and silver nitrate inN,N-dimethylformamide and keeping the suspension at 90 °C for 12 h.

scholarly journals Stretchable heaters with composites of an intrinsically conductive polymer, reduced graphene oxide and an elastomer for wearable thermotherapy

2017 ◽  
Vol 5 (6) ◽  
pp. 1544-1551 ◽  
Author(s):  
Rui Zhou ◽  
Pengcheng Li ◽  
Zeng Fan ◽  
Donghe Du ◽  
Jianyong Ouyang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Conductive Polymer ◽  
Reduced Graphene

A stretchable and conductive WPU/PEDOT:PSS/rGO composite was developed for wearable and long-term thermotherapy.

Growth of nano-porous Pt-doped cerium oxide thin films on glassy carbon substrate

2013 ◽  
Vol 39 (4) ◽  
pp. 3765-3769 ◽  
Author(s):  
I. Khalakhan ◽  
M. Dubau ◽  
S. Haviar ◽  
J. Lavková ◽  
I. Matolínová ◽  
...  
Keyword(s):  
Thin Films ◽  
Cerium Oxide ◽  
Glassy Carbon ◽  
Carbon Substrate ◽  
Oxide Thin Films ◽  
Glassy Carbon Substrate

A sensitive sensor based on molecularly imprinted polypyrrole on reduced graphene oxide modified glassy carbon electrode for nevirapine analysis

2021 ◽  
Author(s):  
Bayazid Hassan Pour ◽  
Nahid Haghnazari ◽  
Fatemeh Keshavarzi ◽  
Elahe Ahmadi ◽  
Bahareh Rahimian Zarif
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Molecularly Imprinted ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide ◽  
Sensitive Sensor ◽  
Mip Sensor

A molecularly imprinted polymer (MIP) sensor was offered for nevirapine (NVP) analysis based on the electropolymerization of pyrrole (Py) on electrochemically reduced graphene oxide (ErGO) immobilized on a glassy carbon electrode (GCE).

scholarly journals A Novel Modular eNose System Based on Commercial MOX Sensors to Detect Low Concentrations of VOCs for Breath Gas Analysis

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 993 ◽  
Author(s):  
Carsten Jaeschke ◽  
Oriol Gonzalez ◽  
Johannes J. Glöckler ◽  
Leila T. Hagemann ◽  
Kaylen E. Richardson ◽  
...  
Keyword(s):  
Sensor Array ◽  
Gas Analysis ◽  
Exhaled Breath ◽  
Pattern Recognition Methods ◽  
Low Concentrations ◽  
Physical Sensors ◽  
Sensor Signals ◽  
Breath Gas Analysis ◽  
New Generation ◽  
Mox Sensors

In this work, a new generation of eNose systems particularly suited for exhaled breath gas analysis is presented. The developed analyzer system comprises a compact modular, low volume, temperature controlled sensing chamber explicitly tested for the detection of acetone, isoprene, pentane and isopropanol. The eNose system sensing chamber consists of three compartments, each of which can contain 8 analog Metal Oxide (MOX) sensors or 10 digital MOX sensors. Additional sensors within the digital compartment allow for pressure, humidity and temperature measurements. The presented eNose system contains a sensor array with up to 30 physical sensors and provides the ability to discriminate between low VOC concentrations under dry and humid conditions. The MOX sensor signals were analyzed by pattern recognition methods.

HRTEM‐EELS cross‐sectional structural analyses of glassy carbon substrate irradiated by platinum ions using a coaxial arc plasma gun

2019 ◽  
Vol 52 (1-2) ◽  
pp. 23-33 ◽  
Author(s):  
Kun'ichi Miyazawa ◽  
Takuro Nagai ◽  
Koji Kimoto ◽  
Masaru Yoshitake ◽  
Yumi Tanaka
Keyword(s):  
Glassy Carbon ◽  
Carbon Substrate ◽  
Arc Plasma ◽  
Cross Sectional ◽  
Plasma Gun ◽  
Glassy Carbon Substrate
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