An Efficient Electrochemical Approach for the Characterization of Interfacial Strength of Nano Titania-silica Composite Coating on Titanium Implants

The thermal decomposition process developed in the present work is a viable technique for the formation of a nano TS (TiO2-SiO2) composite coating on Ti substrate. The electrochemical experiments revealed that the developed coatings had high degradation resistance characteristics and high biomimetic growth characteristics. There was no degradation on the coating even when it was subjected to different extent of electrochemical polarization and anodic current impression. The biomimetic growth studies of these coatings were carried out without any alkaline treatment. Surface and topographical analysis including SEM and AFM were also carried after biomimetic growth. The results of elemental analysis of the SBF solution and electrochemical characterization carried out at different stages revealed that there was efficient apatite growth even without pre-alkaline treatment.

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Characterization of antibacterial silver nanocluster/silica composite coating on high performance Kevlar® textile

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.05.009 ◽

2017 ◽

Vol 321 ◽

pp. 438-447 ◽

Cited By ~ 11

Author(s):

Cristina Balagna ◽

Muhammad Irfan ◽

Sergio Perero ◽

Marta Miola ◽

Giovanni Maina ◽

...

Keyword(s):

Composite Coating ◽

High Performance ◽

Silver Nanocluster ◽

Silica Composite

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An Electrochemical Approach to Follow and Evaluate the Kinetic Catalysis of Ricin on hsDNA

Life ◽

10.3390/life11050405 ◽

2021 ◽

Vol 11 (5) ◽

pp. 405

Author(s):

George Oliveira ◽

José Maurício Schneedorf

Keyword(s):

Catalytic Efficiency ◽

Ricin Toxin ◽

Wave Voltammetry ◽

Progress Curve ◽

Electrochemical Approach ◽

Electro Oxidation ◽

Castor Seeds ◽

Identification And Characterization ◽

Medical Countermeasures

International authorities classify the ricin toxin, present in castor seeds, as a potential agent for use in bioterrorism. Therefore, the detection, identification, and characterization of ricin are considered the first actions for its risk assessment during a suspected exposure, parallel to the development of therapeutic and medical countermeasures. In this study, we report the kinetic analysis of electro-oxidation of adenine released from hsDNA by the catalytic action of ricin by square wave voltammetry. The results suggest that ricin-mediated adenine release exhibited an unusual kinetic profile, with a progress curve controlled by the accumulation of the product and the values of the kinetic constants of 46.6 µM for Km and 2000 min−1 for kcat, leading to a catalytic efficiency of 7.1 × 105 s−1 M−1.

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