Biocidal effects of organometallic materials supported on ZSM-5 Zeolite: Influence of the physicochemical and surface properties
I. Huenuvil-Pacheco,
A.F. Jaramillo,
N.J. Abreu,
K. Garrido-Miranda,
G. Sánchez-Sanhueza,
G. González-Rocha,
C. Medina,
L.F. Montoya,
J.P. Sanhueza,
M.F. Melendrez
Affiliations
I. Huenuvil-Pacheco
Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, 01145 Francisco Salazar, Temuco 4780000, Chile; Department of Chemical Engineering, University of Concepción, Concepción 4070386, Chile
A.F. Jaramillo
Department of Mechanical Engineering, Universidad de La Frontera, 01145 Francisco Salazar, Temuco 4780000, Chile; Departamento de Ingeniería Mecánica, Universidad de Córdoba, Cr 6 #76-103, Montería 230002, Colombia; Corresponding author. Universidad de La Frontera, 01145 Francisco Salazar, Temuco 4780000, Chile.
N.J. Abreu
Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, 01145 Francisco Salazar, Temuco 4780000, Chile; Centro de Manejo de Residuos y Bioenergía, BIOREN, Universidad de La Frontera, 01145 Francisco Salazar, Temuco 4780000, Chile; Corresponding author. Universidad de Córdoba, Cr 6 #76-103, Montería 230002, Colombia.
K. Garrido-Miranda
Agriaquaculture Nutritional Genomic Center (CGNA), Temuco 4780000, Chile; Núcleo de Investigación en Bioproductos y Materiales Avanzados (BIOMA), Universidad Católica de Temuco, Avenida Rudecindo Ortega 02950, Campus San Juan Pablo II, Temuco 4780000, Chile
G. Sánchez-Sanhueza
Department of Restorative Dentistry, Faculty of Dentistry, Universidad de Concepción, 1550 Roosevelt St, Concepcion 4030000, Chile
G. González-Rocha
Laboratorio de Investigación en Agentes Antibacterianos, Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, P.O. Box C-160, Chile
C. Medina
Department of Mechanical Engineering (DIM), Faculty of Engineering, University of Concepción, Edmundo Larenas 219, Concepcion 4070409, Chile
L.F. Montoya
Department of Chemical Engineering, University of Concepción, Concepción 4070386, Chile
J.P. Sanhueza
Department of Materials Engineering (DIMAT), Faculty of Engineering, Universidad de Concepción, 315 Edmundo Larenas, Concepcion, 4070415, Chile
M.F. Melendrez
Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastían, Campus Las Tres Pascualas, Lientur 1457, Concepción, 4060000, Chile
Antifouling coatings containing biocidal agents can be used to prevent the accumulation of biotic deposits on submerged surfaces; however, several commercial biocides can negatively affect the ecosystem. In this study, various formulations of a potential biocide product comprising copper nanoparticles and capsaicin supported on zeolite ZSM-5 were analyzed to determine the influence of the concentration of each component. The incorporation of copper was evidenced by scanning electron microscopy and energy dispersive spectroscopy. Similarly, Fourier-transform infrared spectroscopy confirmed that capsaicin was supported on the zeolite surface. The presence of capsaicin on the external zeolite surface significantly reduced the surface area of the zeolite. Finally, bacterial growth inhibition analysis showed that copper nanoparticles inhibited the growth of strains Idiomarina loihiensis UCO25, Pseudoalteromonas sp. UCO92, and Halomonas boliviensis UCO24 while the organic component acted as a reinforcing biocide.
