Results 21 to 30 of about 63,431 (263)

Nucleic acid electrochemical and electromechanical biosensors: a review of techniques and developments

Reviews in Analytical Chemistry, 2014
This review comprises the last decade’s development on experimental techniques for electrochemical and electromechanical sensing of nucleic acids, which originate from pathogenic bacteria, parasites, and viruses commonly found in food, water, and medical
Rosario Ruben, Mutharasan Raj
doaj   +1 more source

Electrochemical activation and characterization of carbon cloth

The European Chemistry and Biotechnology Journal
Here, carbon cloth (CC), which is a disposable, inexpensive, conductive substrate, was electrochemically activated for the formation of function al groups on the electrode surface.
Tugba Ozer
doaj   +1 more source

Determination of polyhexamethylene biguanide hydrochloride

Reviews in Analytical Chemistry, 2014
Polyhexamethylene biguanide hydrochloride (PHMB-HCl) is widely used as a disinfectant in personal care products such as cosmetics and toiletries and as a sanitizer in swimming pools. PHMB-HCl possesses marked characteristics of cationic polyelectrolytes.
Masadome Takashi, Hattori Toshiaki
doaj   +1 more source

Pre-treated pencil graphite modified electrode sensor for melatonin

Journal of Electrochemical Science and Engineering
Since hormones are essential for controlling a wide range of physiological processes in living organisms, sensitive and precise hormone detection methods are needed.
Bindu Pavan Venkatachala, Siddalinganahalli Manjappa, Bahaddurghatta Eshwaraswamy Kumara Swamy, Lambani Shivlanaik Manjunatha   +3 more
doaj   +1 more source

Cd, Pb and Cu in spring waters of the Sibylline Mountains National Park (Central Italy), determined by square wave anodic stripping voltammetry

E3S Web of Conferences, 2013
Square wave anodic stripping voltammetry (SWASV) was used to determine Cd, Pb and Cu in spring waters of the Sibylline Mountains National Park, Central Italy.
Truzzi C., Annibaldi A., Illuminati S., Finale C., Scarponi G.   +4 more
doaj   +1 more source

A Comparison between Four Analytical Methods for the Measurement of Fe(II) at Nanomolar Concentrations in Coastal Seawater

Frontiers in Marine Science, 2017
Dissolved Fe(II) in seawater is deemed an important micronutrient for microbial organisms, but its analysis is challenging due to its transient nature. We conducted a series of Fe(II) method comparison experiments, where spikes of 5 to 31 nM Fe(II) were ...
Mark J. Hopwood, Antony J. Birchill, Martha Gledhill, Eric P. Achterberg, Jessica K. Klar, Jessica K. Klar, Angela Milne   +6 more
doaj   +1 more source

Evaluación de la reactividad de sulfuros de hierro y residuos mineros: una metodología basada en la aplicación de la voltamperometría cíclica Evaluation of the reactivity of iron sulfides and mining wastes: methodology based on cyclic voltammetry

Química Nova, 2006
The mining industry around the world produces an important amount of wastes, which by their high toxic metal and iron sulfide content present a serious environmental problem.
Roel Cruz y Marcos Monroy, Ignacio González   +1 more
doaj   +1 more source

Immobilization of bromelain on cobalt-iron magnetic nanoparticles (CoFe2O4) for casein hydrolysis

Revista Colombiana de Química, 2020
By means of recycling an enzyme, bromelain was used in casein hydrolysis facilitated by a nanobiocatalyst consisting of bromelain, CoFe2O4 magnetic nanoparticles, chitosan, and glutaraldehyde.
José Mauricio García Colmenares, Julia Constanza Reyes Cuellar   +1 more
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

Study of a Sensitive and Selective Electrochemical Biosensor for Glucose Based on Bi₂Ru₂O₇ Pyrochlore Clusters Combined with MWCNTs

Chemosensors
The development of sensitive, selective, and reliable glucose biosensors remains a persistent challenge in clinical diagnostics. In this study, we exploited the advantageous (electro)catalytic properties of bismuth ruthenate (Bi2Ru2O7) pyrochlore ...
Jelena Isailović, Aleksandra Dapčević, Milan Žunić, Matjaž Finšgar, Kristijan Vidović, Nikola Tasić, Samo B. Hočevar   +6 more
doaj   +1 more source