New carbon black composite vapor detectors based on multifunctional polymers

Sartore, Luciana; Penco, Maurizio; Sciucca, Stefania Della; Borsarini, Giacomo; Ferrari, Vittorio

doi:10.1016/j.snb.2005.07.032

Cited by 16 publications

(14 citation statements)

References 14 publications

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“…A subsequent article reported on the development of vapor detectors formed from composites of conductive carbon black and PAAs. The new materials were tailored to produce increased sensitivity toward specific classes of analyte vapors . Subsequent articles reported on the use of PAAs as the active components of a flow type quartz crystal microbalance chemical sensor suitable for determining heavy metal ions in aqueous solution, hence having potential for environmental monitoring.…”

Section: Physico‐chemical Propertiesmentioning

confidence: 99%

Poly(amidoamine)s: Past, present, and perspectives

Ferruti

2013

J. Polym. Sci. Part A: Polym. Chem.

122

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Poly(amidoamine)s (PAAs) are a family of synthetic polymers obtained by stepwise polyaddition of prim-or sec-amines to bisacrylamides. Nearly all conceivable bisacrylamides and prim-or sec-amines can be employed as monomers endowing PAAs of a structural versatility nearly unique among stepwise polyaddition polymers. PAAs are degradable in aqueous media, including physiological fluids. Many of them are remarkably biocompatible notwithstanding their cationic character. PAAs are per se highly functional polymers and, in addition, can be further functionalized giving rise to an endless variety of polymeric structures meeting the requisites for applications in such apparently disparate fields as inorganic water pollutants scavengers, sensors, drug and protein intracellular carriers, transfection promoters, peptidomimetic antiviral and antimalarial agents. In this review, the unique chemistry of PAAs is discussed and a vast library of PAA structures and PAA applications from the beginning to the present days reported.

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Section: Physico‐chemical Propertiesmentioning

confidence: 99%

Poly(amidoamine)s: Past, present, and perspectives

Ferruti

2013

J. Polym. Sci. Part A: Polym. Chem.

122

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“…139,140 Electrochemical impedance biosensors (EIBs) are typically constructed on a SAM layer 141,142 or on a conductive polymer layer. 143,144 The process of hybridization or antibodyantigen interaction is measurable by response in conductivity across the immunosensor surface, which is translated into a change in the resistance and/or double-layer capacitance following analyte capture. 145 Detection of the change in capacitance is easier to measure as no reference electrode is required and therefore it is more durable "in-field".…”

Section: Electrochemical Impedance Biosensorsmentioning

confidence: 99%

Nanoscale virus biosensors: state of the art

Krejčová¹,

Michálek²,

Rodrigo³

et al. 2015

NDD

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Abstract:Since the beginning of the new millennium, viruses have shown huge epidemiological and pandemic potential: severe acute respiratory syndrome (SARS) in 2002, pandemic swine flu in 2009, and last but not least the West African Ebola outbreak in 2014. The occurrence and spread of the new virus in pandemic dimension poses a threat to the health and lives of 7 billion people worldwide. There is a growing urgency for highly sensitive and selective detection techniques, usable for a wide number of applications, including disease diagnosis, pharmaceutical research, agriculture, as well as preventive measures. Nanobiosensors represent a new promising tool for virus detection. This review gives a brief survey of the issue of viral detection, comprising diagnostics of target structure of viruses such as nucleic acids or proteins. This review covers different detection principles, methods of fabrication, and applications of virus biosensors.

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“…PAAs are synthetic water-soluble polymers, characterized by the presence of amido and tertiary amino groups regularly arranged along their macromolecular chain. These polymers have been extensively studied because of their abilities to form complexes with DNA [10], moreover the versatility of their chemical structures has allowed a variety of applications ranging from drug delivery [11], to metal ion complexation [12] and gas sensing [13]. …”

Section: Introductionmentioning

confidence: 99%

Polymer-grafted QCM chemical sensor and application to heavy metal ions real time detection

Sartore

Barbaglio

Borgese

et al. 2011

Sensors and Actuators B: Chemical

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A flow type quartz crystal microbalance (QCM) chemical sensor was developed for monitoring of heavy metal ions in aqueous solutions (that is suitable for environmental monitoring). The sensor is based upon surface chelation of the metal ions at multifunctional polymer modified gold electrodes on 9 MHz AT-cut quartz resonators, functioning as a QCM. New processes have been developed which enable to obtain surface-modified gold electrodes with high heavy metal ions complexing ability. These polymer grafted QCM sensors can selectively adsorb heavy metal ions, such as copper lead chrome and cadmium, from solution over a wide range from 0.01 to 1000 ppm concentration by complexation with functional groups in the polymers. Cations typically present in natural water did not interfere with the detection of heavy metals. X-Ray Reflectivity (XRR) and Total Reflection X-ray Fluorescence (TXRF) were carried out to characterise the unmodified and modified gold surfaces as well as to verify the possibility to selectively bond and remove metal ions.

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New carbon black composite vapor detectors based on multifunctional polymers

Cited by 16 publications

References 14 publications

Poly(amidoamine)s: Past, present, and perspectives

Poly(amidoamine)s: Past, present, and perspectives

Nanoscale virus biosensors: state of the art

Polymer-grafted QCM chemical sensor and application to heavy metal ions real time detection

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