In this issue we examine diversity, inclusion, and equity through several different lenses. This issue is of continuing importance to ECS, science, and the greater world population.
Flavonoids have been studied extensively for their antioxidant properties. Specifically, the flavonoids in tea, such as catechin and epigallocatechin gallate, have been shown to have positive health ...effects. These compounds are also oxidizable, so the concentrations of these compounds in a given kind of tea can be determined using cyclic voltammetry. Green, black, oolong, and herbal teas were each diluted using pH 7.0 phosphate buffer, analyzed using cyclic voltammetry, and compared to the standards of epigallocatechin gallate, catechin hydrate, and catechol. The effect of brewing temperature on the concentration of catechins was also examined. Students learned about the common flavonoids in tea and the effect of brewing temperature on the concentration of catechins in solution.
The use of enzymatically modified electrodes for the detection of glucose or other non-electrochemically active analytes is becoming increasingly common. Direct heterogeneous electron transfer to ...glucose oxidase has been shown to be kinetically difficult, which is why electron transfer mediators or indirect detection is usually used for monitoring glucose with electrochemical sensors. It has been found, however, that electrodes modified with single or multi-walled carbon nanotubes (CNTs) demonstrate fast heterogeneous electron transfer kinetics as compared to that found for traditional electrodes. Incorporating CNTs into the assembly of electrochemical glucose sensors, therefore, affords the possibility of facile electron transfer to glucose oxidase, and a more direct determination of glucose. This chapter describes the methods used to use CNTs in a layer-by-layer structure along with glucose oxidase to produce an enzymatically modified electrode with high turnover rates, increased stability and shelf-life.
Websites of Note Suroviec, Alice H.
The Electrochemical Society interface,
01/2018, Volume:
27, Issue:
2
Journal Article
Open access
Suroviec presents several web sites on electrochemistry. These include Power Electronics Tutorial, located at www.tutorialspoint.com/power_electronics/index.htm, Rotating Disk Theory, located at ...www.pineresearch.com/dev/shop/knowledgebase/pine-rotating-electrode-theory/, and Memristors, located at www.memristor.org.
Websites of Note Suroviec, Alice H.
The Electrochemical Society interface,
01/2018, Volume:
27, Issue:
3
Journal Article
Open access
Suroviec features several Web sites. The Dryad Digital Repository (www.datadryad.org) is a curated resource that makes the data underlying scientific publications discoverable, freely reusable, and ...citable. CEDI University (www.cediuniversity.com) is a single Web site that has tutorials and frequently asked questions about continuous electrodeionization. The Web site www.pineresearch.com/shop/knowledgebase/laboratory-exercises/ by Pine Research provides several different exercises for use in the college labs.
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