Nanoparticles in electrochemical sensors for environmental monitoring

Electrochemical sensors cleaned by light: a proof of concept for on site applications towards integrated monitoring systems

“…[1][2][3] Their popularity is spreading in almost all classes of sensing platforms (optical, electrical, spectroscopic, electrochemical, etc.) as a consequence of their tremendous performance boost.…”

Environmental Monitoring for Health and Wellness

“…Wireless sensor modules can be used to monitor a specific water source, such as the WaterBot project (Carnegie-Mellon, 2013). Some of the key technologies utilized in water-sensing applications to date include electrochemical (Kimmel et al, 2011), biotechnology (Lagarde et al, 2011), MEMS (Jang et al, 2011), nanotechnology (Rassaei et al, 2011), optical (Namour et al, 2010).…”

Detection of chemical pollutants in water using gold nanoparticles as sensors: a review

“…The color changes associated with NP aggregation, and/or local refractive index change, have been exploited as optical sensing methods for the detection of toxins , Liu et al 2008, Shim et al 2009 ), heavy metals (Darbha et al 2008, Xue et al 2008 ) and other environmental pollutants (Daniel et al 2009, Dasary et al 2009 ) in water, soil and other environmental samples. AuNPs are also being used to enhance the performance of electrochemical sensors due to their catalytic properties (Rassaei et al 2011 ). Electrochemical sensors have been widely investigated for use in environmental pollutants screens.…”

“…Electrochemical sensors have been widely investigated for use in environmental pollutants screens. Generally, in these approaches, electrodes are first modified with AuNPs to increase their surface area for analyte absorption and catalytic reduction of the analytes, to generate the electrical readout signals (Rassaei et al 2011 ). The AuNPs can also be functionalized with molecular capturing agents (i.e., antibodies, oligonucleotides, small molecules) to interact specifically with their molecular targets.…”