Publications by authors named "Carla Adriana Rodrigues Sousa Brito"

The objective of this research was to modify chicha gum with phthalic anhydride to obtain a new biologically active material. The chemical modification of the gum structure was proven through FTIR, elemental analysis, XRD, TG, and DSC. The derived materials demonstrated excellent inhibitory effect against P.

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Nanocomposite materials have been proposed to enhance the properties of different materials. In this study, palygorskite (Pal) clay is proposed as a support matrix for silver nanoparticles stabilised with cashew gum (Anacardium occidentale L.) (AgNPs-CG), producing the Pal/AgNPs-CG nanocomposite, whose bactericidal activity was studied.

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It was developed a material to act as an antimicrobial and antiparasitic agent through a modification reaction in the gum structure extracted from the plant Sterculia striata. This material was characterized, the oxidant activity was evaluated and the antimicrobial activity against Candida albicans, Escherichia coli, Pseudomonas aeruginosa, Salmonella Typhimurium and Klebsiella pneumoniae was investigated, in addition to the effect against Leishmania amazonensis, testing its acute toxicity and its cytotoxicity in human cells. Characterization techniques proved the success of chemical modification.

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Article Synopsis
  • The study aimed to evaluate the antimicrobial effectiveness of three disinfectants—70% isopropyl alcohol, 2% glutaraldehyde, and 0.25% peracetic acid—on orthodontic pliers contaminated with specific bacteria and yeast.
  • Five groups of pliers underwent different disinfection methods before being microbiologically evaluated for the presence of microorganisms, using statistical analyses for comparison.
  • Results indicated no significant differences in the disinfectants' effectiveness, but both 2% glutaraldehyde and 0.25% PAA effectively eliminated the tested microbes, while 70% isopropyl alcohol failed to completely eradicate one specific bacteria.
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