Two choices for the functionalization of silica nanoparticles with gallic acid: characterization of the nanomaterials and their antimicrobial activity against Paenibacillus larvae |
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| Authors: | Tamara?A.?Vico,Valeria?B.?Arce,María?F.?Fangio mailto:mfangio@mdp.edu.ar" title=" mfangio@mdp.edu.ar" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Liesel?B.?Gende,Celso?A.?Bertran,Daniel?O.?Mártire,María?S.?Churio mailto:schurio@mdp.edu.ar" title=" schurio@mdp.edu.ar" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author |
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| Affiliation: | 1.Departamento de Química, FCEyN/IFIMAR, CONICET,Universidad Nacional de Mar del Plata,Mar del Plata,Argentina;2.Centro de Investigaciones ópticas (CIOp),CONICET La Plata—CIC—UNLP,La Plata,Argentina;3.Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR), CONICET,Universidad Nacional de Mar del Plata,Mar del Plata,Argentina;4.Centro de Investigaciones en Abejas Sociales, FCEyN,Universidad Nacional de Mar del Plata,Mar del Plata,Argentina;5.Chemistry Institute,University of Campinas,Campinas,Brazil;6.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET,Universidad Nacional de La Plata,La Plata,Argentina |
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| Abstract: | ![]()
Silica nanoparticles attached to gallic acid were synthesized from 7-nm diameter fumed silica particles by different functionalization methods involving the condensation of hydroxyl or carboxyl groups. The particles were characterized by thermal analyses and UV–vis, FTIR, NMR, and EPR spectroscopies. In comparison to free gallic acid, enhanced stability and increased antimicrobial activity against Paenibacillus larvae were found for the functionalized nanoparticles. Thus, both derivatization strategies result in improved properties of the natural polyphenol as antimicrobial agent for the treatment of honeybee pathologies. |
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