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ISSN (Print): 1872-2083
ISSN (Online): 2212-4012

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Opinion Article

Chitosan Oligomer and Zinc Oxide Nanoparticles for Treating Wastewaters: US20190134086 Patent Evaluation

Author(s): Fernanda Guimarães Valverde, Daniela Droppa-Almeida* and Francine Ferreira Padilha

Volume 16, Issue 1, 2022

Published on: 26 November, 2021

Page: [6 - 15] Pages: 10

DOI: 10.2174/1872208315666211026104828

Price: $65

Abstract

With the utilisation of algae, wastewater reuse is becoming a viable option for the energy industry, especially green energy. The growth of these algae in these wastewaters provides an alternative source for bioenergetics, however, the growth of other microorganisms can directly affect the production of bioenergy, requiring the removal and reduction of contaminants in these waters, in addition to being a source of contamination for workers. Therefore, the use of nanoparticles in bioremediation has been an alternative to mitigate the contamination of these wastewaters that have microorganisms capable of reducing the algae growth capacity. The objective of this work was to verify in the United States Patent and Trademarker office database (USPTO) patents that used chitosan nanoparticles as a form of wastewater treatment and to carry out the analysis of patent US20190134086, which addresses the use of zinc oxide nanoparticles associated with chitosan that was developed and used to evaluate their antibacterial activity against resistant microorganisms and biofilm producers present in wastewater. Escherichia coli, Enterococcus faecium, and/or Pseudomonas aeruginosa are the microorganisms involved in the evaluated invention, bacteria present in the gastrointestinal tract, of clinical and environmental importance. The synthesized nanoparticles are arranged as a pharmaceutically acceptable and toxic vehicle against resistant bacteria, thus being described as nanoremediators. Given the analyzed patent, it was possible to verify the importance of alternatives to reduce the impact that pollution, in general, has on the environment, in addition to the proposed technology serving to maintain the survival and development capacity of the algae that will be able to produce green energy, the nanoparticles with antibacterial potential can help indirectly reduce these pathogenic strains with resistance to several antibiotics in the environment.

Keywords: Algae, multidrug-resistant bacteria, polymeric nanoparticle, remediation, bioenergy, antimicrobial.

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