Thin Layers of Cerium Oxynitride Deposited via RF Sputtering.

Thin films of transition metal oxides and oxynitrides have proven highly effective in protecting stainless steels against corrosion in both chemically aggressive environments and biological fluids. In the present work, cerium zirconium oxynitride thin films were deposited to enhance the corrosion resistance of surgical-grade stainless steel to be used in osteosynthesis processes. Two techniques were employed: co-sputtering and radiofrequency (RF) sputtering, and the morphology and corrosion efficiency of the coatings deposited by each technique were evaluated.

Antimicrobial Activity of Jacq and Loes on Microorganisms Associated with Periodontal Disease.

Background: Chronic periodontitis is a multifactorial infectious disease, where multiple bacteria, such as , , and are implicated. The main purpose of researching natural products is to find substances or compounds with antimicrobial activity.

Aim: The objective of this work was to determine antimicrobial activity from extracts and obtained fractions from Jacq and Loes on ATCC 33277, ATCC 25586, and ATCC 25611.