Biosensors & Bioelectronics

Rita de Cássia Silva Luz

Publications

• Research Article
  Micellar Effects of Cetyl Pyridinium Chloride on Antioxidant Capacity,Voltammetric Response of Serum and Saliva Samples
  Author(s): Madla Adami dos Passos, Denise Vaz de Macedo, Rita de Cássia Silva Luz, Lázaro Alessandro Soares Nunes, Lauro Tatsuo Kubota and Armindo Antonio AlvesMadla Adami dos Passos, Denise Vaz de Macedo, Rita de Cássia Silva Luz, Lázaro Alessandro Soares Nunes, Lauro Tatsuo Kubota and Armindo Antonio Alves
  
  The production of reactive oxygen species due to increased energy demand during physical exercise can increase the cellular and blood oxidation state. The reducing power of biological samples reflects its antioxidant capacity, largely maintained by Low Molecular Weight Antioxidants (LMWA), which donate electrons to radical species. LMWA include antioxidants such as uric acid, vitamins C and E and lipoic acid, among others. The electroanalytical technique of Differential Pulse Voltammetry (DPV) presents a good methodological alternative to quantify acute and chronic modulations of the antioxidant capacity from biological fluids in response to metabolic adaptations caused by physical exercise. However, when biological samples are analyzed, proteins are an important preanalytical interfering in the technique. The proteins can be adsorbed on the electrode surf.. Read More»
  DOI: 10.4172/2155-6210.1000130

  Abstract PDF