Deposition of nanomaterials: A crucial step in biosensor fabrication

Abstract

 An easy, stable, and reproducible nanomaterial deposition/growth method is crucial for the realization of fabricated biosensor devices' performance, such as device stability, and reproducibility, as well as other sensing properties.  Key challenges for optimum deposition include stability, reproducibility, repeatability, and the ability of deposited nanomaterials to address these challenges is critiqued.

Selective nonanal molecular recognition with SnO2 nanosheets for lung cancer sensor

“…A H 2 S gas sensor was developed with SnO 2 nanowires. 7 It was reported that nanomaterials deposition onto a conductive electrode was a crucial step for obtaining improved performance. Oxidation of Cu to CuO was well-controlled to form CuO@SnO 2 p-n heterojunctions.…”

“…The review article reported various metal oxide nanomaterials and their applications to biosensors. 7 It was reported that nanomaterials deposition onto a conductive electrode was a crucial step for obtaining improved performance. An easy, stable, and reproducible nanomaterial deposition method was indispensable to biosensor devices.…”

Stamped multilayer graphene laminates for disposable in-field electrodes: application to electrochemical sensing of hydrogen peroxide and glucose

“…Graphene, and graphene-like materials can be used for a multitude of sensing applications. While it has been documented that neither material alone is the most efficient platform for direct detection of glucose or detection of H 2 O 2 [6], they remain important base components or scaffolds for metal-based catalysts in electrochemical sensor applications [10][11][12]. As such, many graphene-or carbon-based electrochemical sensors have been evaluated using classical benchmark testing of H 2 O 2 oxidation and detection of glucose (typically via the breakdown of glucose) [13,14].…”

Electronic tongue technology applied to the analysis of grapes and wines

“…Specific enzymes for the detection of phenols (e.g., tyrosinase, laccase or peroxidase) or sugars (e.g., glucose oxidase or fructose dehydrogenase) among others, have been incorporated into bioelectronic tongues [44,106,107,109,[119][120][121][122]. temperature and is carried out using three electrodes dipped into the solution at a potential (or current, depending on the method used) that is applied to polymerize the monomer and/or reduce metal ions in the simultaneous preparation of polymer composites with metal nanoparticles [136].…”

“…Printing-based methods have been used to deposit materials onto rigid and flexible substrates to make devices on a large-scale at low cost. One advantage of these methods is that they allow nanomaterials to be desposited directly onto predesigned patterns [136].…”