Preparation of nanofibrous polyaniline films and their application as ammonia gas sensor

Sutar, D.S.; Nimmakayala, Padma; Aswal, D. K.; Deshpande, S. K.; Gupta, Sachin; Yakhmi, J. V.

doi:10.1016/j.snb.2007.06.015

Cited by 147 publications

(77 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In a similar manner, Barsola et al have developed a fluorescent nanosensor for Cu 2+ ions on silica particles [302]. Sutar et al used alkoxysilane SAMs on silicon as artificial seeds for the attachment and self organization of the polyaniline films to the amino terminal groups of the SAM, to create a gas sensor for ammonia detection [303]. The chemisresistor sensors prepared using this method showed sensitivity for very low concentrations of ammonia and showed better response and recovery times compared to earlier reports.…”

Section: Sensor Layers Using Alkylsilane Samsmentioning

confidence: 99%

Silicon Based Nanocoatings on Metal Alloys and Their Role in Surface Engineering

Bhure¹,

Mahapatro

2010

Silicon

View full text Add to dashboard Cite

Metals and their alloys have been widely used in all aspects of science and engineering. However the science of nanotechnology is driving newer demands and requirements for better performance of existing materials and also at a higher level of precision. This is naturally presenting complicated demands on the surface of these metals with a need for surface modification. Self Assembled Monolayers (SAMs) are nanosized coatings that present the most efficient method of carrying out surface modification. Alkylsilanes are silicon based SAMs which are compatible with the majority of metals and alloys. These nanocoatings can serve primary functions such as surface coverage, etch protection and anti corrosion, along with a host of other secondary chemical functions because of their amphiphilic nature. We present a brief introduction to surface modification of metals and alloys followed by a detailed description of silane based nanocoatings and their applications in technology. Then a look at the engineering aspects of these coatings in terms of patterning techniques is presented along with a discussion of the applications of patterned SAMs.

show abstract

Section: Sensor Layers Using Alkylsilane Samsmentioning

confidence: 99%

Silicon Based Nanocoatings on Metal Alloys and Their Role in Surface Engineering

Bhure¹,

Mahapatro

2010

Silicon

View full text Add to dashboard Cite

show abstract

“…The use of self-assembled monolayer formation has been adapted to the deposition of conducting-polymer nanofilms by the chemical polymerization of aniline at an amino-silane surface that acts as the seed layer for polymerization, which led to a more ordered nanofibrous growth than would be seen using bulk chemical polymerization [39]. This was shown to be capable of detection of 0.5 ppm ammonia vapor, with a response ratio of 2 at 20 ppm.…”

Section: Nanofilmsmentioning

confidence: 99%

Nanostructured Conducting Polymers for (Electro)chemical Sensors

Killard

2010

Nanostructured Conductive Polymers

View full text Add to dashboard Cite

Conducting polymers have been investigated for many years now for their electrical and electrochemical properties. The moderate range of conducting polymers now available, their many derivatives, broad range of counter-ion doping options, level of proton doping, and the many synthetic routes result in a large range of material properties in terms of conductivity, chemical sensitivity, selectivity, and redox characteristics. This allows them to participate in many chemical interactions which are suitable for chemosensing applications.Nanotechnology allows conducting-polymer materials to be studied and applied to chemical sensing in a new way. Controlling the structure and morphology of conducting polymer materials at nanoscales brings the prospect of a range of enhancements not possible with traditional bulk materials. Traditional routes to polymer formation, such as chemical and electrochemical synthesis, lack any fine control on the tertiary structure of the growing polymer, and this lack of structural reproducibility has negative consequences for the performance of the material as a sensor interface. In addition, such polymerizations, Nanostructured Conductive PolymersEdited by Ali Eftekhari

show abstract

“…Common examples include chemical resistors (typically referred to as chemiresistors) [22][23][24][25][26][27][28][29], chemically sensitive field-effect transistors (chemFETs) [30,31], electrochemical sensors [32][33][34][35][36][37][38][39][40][41][42], semiconducting metal oxide (SMO) sensors [43][44][45][46][47][48][49], and thermal sensors [50][51][52][53][54]. The detection mechanism varies across this class of sensors from a swelling-induced change in the conductance of polymer-based chemiresistors, to the calorimetricinduced change in conductance of thermal sensors.…”

Section: Conductance-based Sensorsmentioning

confidence: 99%

An assessment of sensing technologies for the detection of clandestine methamphetamine drug laboratories

Man

Stoeber

Walus

2009

Forensic Science International

View full text Add to dashboard Cite

Preparation of nanofibrous polyaniline films and their application as ammonia gas sensor

Cited by 147 publications

References 22 publications

Silicon Based Nanocoatings on Metal Alloys and Their Role in Surface Engineering

Silicon Based Nanocoatings on Metal Alloys and Their Role in Surface Engineering

Nanostructured Conducting Polymers for (Electro)chemical Sensors

An assessment of sensing technologies for the detection of clandestine methamphetamine drug laboratories

Contact Info

Product

Resources

About