The in vivo electrochemical behavior of titanium nitride (TiN) nerve stimulation electrodes was compared to their in vitro behavior for a period of 90 days. Ten electrodes were implanted in two Göttingen minipigs. Four of these were used for electrical stimulation and electrochemical measurements. Five electrodes were kept in Ringer's solution at 37.5°C, of which four were used for electrical s...

To evaluate supports’ effects on catalytic activity toward the oxygen reduction reaction (ORR), a simple and controlled chemical synthesis, involving hot injection of metal precursors, was developed to produce bimetallic PtNi nanoparticles (75 wt.% Pt 25 Ni), supported carbon nanotubes (CNTs) nanofibers (CNFs). The synthesized electrocatalyst characterized using X-ray diffraction (XRD), energy ...

Ionically crosslinked hydrogels based on TEMPO nanocelullose and alginate were prepared to develop a generalized pH value, temperature biopolymer concentration dependent mathematical model. The distinctive attention was in the demonstration of hydrogen bonds effects model, prevailing especially field low crosslink densities nanocellulose hydrogel acid medium. Accordingly, subjected research as ...

When external measurements are made of electrochemical systems, including bioelectrochemical, there results an interaction. Such measurements cause electrochemical processes to take place that are significant. This work looks into the nature and significance of the interfacial processes on membrane and membrane phenomena. The conclusion reached is that interfacial processes are important and ca...

objective: orthodontic wires should have high resistance against corrosion in the oral environment. since the effect of ph on corrosion has been well recognized, this study sought to assess and compare the electrochemical corrosion of orthodontic brackets and wires of different brands in acidic artificial saliva.   methods: this in vitro experimental study was conducted on 24 mandibular central...

The influence of increasing the SiO2/K2O molar ratio on the electrochemical action of a waterborne potassium silicate zinc-rich coating was investigated by means of electrochemical impedance spectroscopy (EIS) and corrosion potential (Ecorr) measurements. The EIS results showed that increasing the SiO2/K2O molar ratio in the range of 3.135 to 5 by the addition of nano-SiO2 to the resins improve...

5-Aminosalicylic acid (5-ASA) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-NSA) in acidic media. In this work, electrolytic reduction of 5-NSA in alkaline media is presented. Reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the pH for isolation of product are investigated. The yiel...

in the present study, physicochemical, rheological and textural properties of beta-glucan (bg) extracted from four iranian hull-less barley lines (ehds4, ehds18, aleli, cam-b) were investigated. two different methods namely, hot water (hw) and acidic (a) were used for extraction of beta-glucan. results showed that the highest amount of beta-glucan belonged to ehds4.the purity of hw extracted be...

Schiff base ligand, 2-acetylpyridine 4-methyl-3-thiosemicarbazone (Me-LH), and its organotin complex (BuSn(Me-LH)Cl2) were synthesized, characterized, subjected to corrosion inhibition study. The spectra crystal structure obtained revealed that the ligand is coordinated by pyridyl nitrogen, azomethine thiolate sulfur (IV) ion. Corrosion of synthesized compounds on mild steels in 1 M HCl solutio...