Article detail · 2008
Electrochemical photoelectrochemical and piezoelectric analysis of tyrosinase activity by functionalized nanoparticles
Journal
Analytical Chemistry 80 (2008) 2811-2816.ISSN 0003-2700
The ISSN points to another catalog journal; the name is from the YÖKSİS record.
- Year
- 2008
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue Analytical Chemistry 80 (2008) 2811-2816.
- Catalog match (ISSN) Analytical Chemistry
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · English
The electrochemical and photoelectrochemical detection of tyrosinase (TR) activity (an indicative marker for melanoma cancer cells) is reported, using Pt nanoparticles (NPs) or CdS NPs as electrocatalytic labels or photoelectrochemical reporter units. The Pt NPs or CdS NPs are modified with a tyrosine methyl ester, (1), capping layer. Oxidation of the capping layer by TR/O2 yields the respective L-DOPA and dopaquinone products. The reduction of the resulting mixture of products with citric acid yields the L-DOPA derivative,(3), as a single product. The association of the (3)-functionalized Pt NPs or CdS NPs to a boronic acid monolayer-modified electrode enables the electrochemical transduction of TR activity by the Pt-NPs-electrocatalyzed reduction of H2O2 or the photoelectrochemical transduction of TR activity by the generation of photocurrents in the presence of triethanolamine as a sacrificial electron donor. The detection limits for analyzing TR corresponds to 1 U and 0.1 U by the electrochemical and photoelectrochemical methods, respectively. The association of the Pt NPs or CdS NPs to the functionalized monolayer electrode is followed by quartz crystal microbalance measurements.
Topics
Citations
OpenAlex cited_by_count. Not a WoS or Scopus citation count; those sources have no separate column here.
169 citations
OpenAlex cited_by_count (cache / database)
19 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- Electrochemical glucose biosensing via new generation DTP type conducting polymers/gold nanoparticles/glucose oxidase modified electrodes 2016
- Electrochemical glucose biosensing via new generation DTP type conducting polymers gold nanoparticles glucose oxidase modified electrodes 2016
- Electrochemical glucose biosensing via new generation DTP type conducting polymers gold nanoparticles glucose oxidase modified electrodes 2016
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- Preparation of bio-electrodes via Langmuir-Blodgett technique for pharmaceutical and waste industries and their biosensor application 2019
- Preparation of bio-electrodes via Langmuir-Blodgett technique for pharmaceutical and waste industries and their biosensor application 2019
- Preparation of bio-electrodes via Langmuir-Blodgett technique for pharmaceutical and waste industries and their biosensor application 2019
- New Amperometric Cholesterol Biosensors Using Poly(ethyleneoxide) Conducting Polymers 2013
- New Amperometric Cholesterol Biosensors Using Poly ethyleneoxide Conducting Polymers 2013
- New Amperometric Cholesterol Biosensors Using Poly ethyleneoxide Conducting Polymers 2013