One of the main directions in development modern electroanalytical chemistry is new effective methods for research and analysis biological objects, particularly, human blood serum. The creation electrochemical sensors a promising approach, which has determined several applied voltammetry field chemical analytical control. In this work, dynamics parameters total antioxidant activity serum patien...

Dionýz Ilkovič (Figure 1) was a Czechoslovak physicist and physical chemist. He made fundamental contributions to the theoretical background of polarography electroanalytical chemistry in general. Polarography is first technique that performs voltammetric study with mercury-dropping electrode 2A). This invented 1922 by Czech chemist Jaroslav Heyrovský, who received Nobel prize 1959 for inventio...

Urea is an added value chemical with wide applications in the industry and agriculture. The release of urea waste to environment affects ecosystem health despite its low toxicity. Online monitoring for industrial environmental unaddressed challenge. Electroanalytical techniques can be a smart integrated solution online if sensors overcome major barrier associated long-term stability. Mixed meta...

Rights: © 2011 Elsevier BV. This is the post print version of the following article: Miettunen, Kati & Asghar, Imran & Ruan, Xiaoli & Halme, Janne & Saukkonen, Tapio & Lund, Peter. 2011. Stabilization of metal counter electrodes for dye solar cells. Journal of Electroanalytical Chemistry. Volume 653, Issue 1-2. 93-99. ISSN 1572-6657 (printed). DOI: 10.1016/j.jelechem.2010.12.022., which has bee...

Exosomes are both active in mediating intracellular communication and potentially present a potent cargo of disease biomarkers to an assay. The robust evaluation of exosomal markers could lead to a paradigm shift in clinical analysis and associated care. To date, much of this has been hindered by issues of sample preparation and assay signal-to-noise. We introduce here the use of ultrasensitive...

Recent work on the preparation of highly organized macroporous electrodes and nanoporous ultramicroelectrodes has been combined and extended to elaborate macroporous ultramicroelectrodes (UMEs) by template synthesis using colloidal crystals and following two different and complementary methods. On the one hand, arched porous UMEs were prepared, and on the other hand, cylindrical porous UMEs wer...

This work describes the adaptive use of conventional stainless steel pins-used in unmodified form or coated with carbon paste-as working, counter, and quasi-reference electrodes in electrochemical devices fabricated using cotton thread or embossed omniphobic R(F) paper to contain the electrolyte and sample. For some applications, these pin electrodes may be easier to modify and use than printed...