Abstract
In this study, we probed the biomimetic formation of gallic acid (GA)–ZnO nanoparticle hybrids. It was found that the morphologies formed were dependent upon pH values, resulting in GA–ZnO hybrids of varying shapes such as micro or nanoplates or fibers. The formed supramolecular GA–ZnO hybrids were found to be luminescent as indicated by confocal microscopy and were utilized for the photocatalytic degradation of the organic dye methylene blue. We also explored the bactericidal effects of the hybrids on Staphylococcus aureus (S. aureus) as well as Escherichia Coli (E. Coli). Thus, we have developed a new class of shape-controlled nanohybrid assemblies via mild, green synthetic methods that may be utilized for photocatalytic degradation for environmental remediation as well as for antibacterial applications.
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Acknowledgments
The authors thank Dr. Areti Tsiola at the Queens College (CUNY) Core Facilities for Bio-imaging, Cell and Molecular Biology for the use of the transmission electron microscope, and the Thermoscientific 2000 nano-drop instrument. The authors also thank Dr. Patrick Brock and Dr. Barbara Balestra at the Queens College (CUNY) Department of Geology for use of the scanning electron microscope. NS, SB, NN, and SF thank the Fordham University Summer Science Internship Program, and IB thanks the Fordham University Faculty Research Grant for financial support of this study.
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Sarker, N.H., Barnaby, S.N., Fath, K.R. et al. Biomimetic growth of gallic acid–ZnO hybrid assemblies and their applications. J Nanopart Res 14, 773 (2012). https://doi.org/10.1007/s11051-012-0773-0
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DOI: https://doi.org/10.1007/s11051-012-0773-0