Polyphenol oxidase-based electrochemical biosensors: A review

Paulo A. Raymundo-Pereira, Tiago A. Silva, Fábio R. Caetano, Laís Ribovski, Eduardo Zapp, Daniela Brondani, Marcio F. Bergamini, Luiz H. Marcolino, Craig E. Banks, Osvaldo N. Oliveira, Bruno C. Janegitz*, Orlando Fatibello-Filho*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

43 Citations (Scopus)

Abstract

The detection of phenolic compounds is relevant not only for their possible benefits to human health but also for their role as chemical pollutants, including as endocrine disruptors. The required monitoring of such compounds on-site or in field analysis can be performed with electrochemical biosensors made with polyphenol oxidases (PPO). In this review, we describe biosensors containing the oxidases tyrosinase and laccase, in addition to crude extracts and tissues from plants as enzyme sources. From the survey in the literature, we found that significant advances to obtain sensitive, robust biosensors arise from the synergy reached with a diversity of nanomaterials employed in the matrix. These nanomaterials are mostly metallic nanoparticles and carbon nanostructures, which offer a suitable environment to preserve the activity of the enzymes and enhance electron transport. Besides presenting a summary of contributions to electrochemical biosensors containing PPOs in the last five years, we discuss the trends and challenges to take these biosensors to the market, especially for biomedical applications.

Original languageEnglish
Pages (from-to)198-221
Number of pages24
JournalAnalytica Chimica Acta
Volume1139
DOIs
Publication statusPublished - 1-Dec-2020
Externally publishedYes

Keywords

  • Biosensors
  • Crude extract
  • Detection
  • Electrochemical
  • Laccase
  • Nanomaterials
  • Phenolic
  • Polyphenol oxidases: tyrosinase

Cite this