Organic biocides hosted in layered double hydroxides: Enhancing antimicrobial activity: Hybrid organic-inorganic biocides

Alejandra Santana Cruz; Jorge Flores; Roberto Guerra; Carlos Felipe; Enrique Lima

doi:10.1515/chem-2018-0016

Organic biocides hosted in layered double hydroxides: Enhancing antimicrobial activity: Hybrid organic-inorganic biocides

Alejandra Santana Cruz, Jorge Flores, Roberto Guerra, Carlos Felipe, Enrique Lima

Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD)

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Samples of layered double hydroxides containing carbonates as compensating anions were prepared by the urea method. These LDHs were used as hosts of anions coming from pipemidic and nalidixic acid. XRD results confirm that these anions were hosted in the interlayer space of LDHs. Further, from ²⁷Al NMR MAS characterization of an interaction between the brucite-like layers and anions was suggested. Then the hybrids LDHs were used as biocide of Salmonella typhi and Escherichia coli. The release profile of pipemidic and nalidixic anions from hybrid LDHs occurs for periods as long as 3.5 hours. The free-organic acid LDHs were not able to kill S. Typhi, neither E. coli. In contrast, the hybrids LDHs eliminate almost completely bacteria within short times.

Original language	English
Pages (from-to)	163-169
Number of pages	7
Journal	Open Chemistry
Volume	16
Issue number	1
DOIs	https://doi.org/10.1515/chem-2018-0016
State	Published - 9 Mar 2018

Keywords

Adsorption
Biocides
Escherichia coli
Layered Double Hydroxides
Salmonella typhi

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abstract = "Samples of layered double hydroxides containing carbonates as compensating anions were prepared by the urea method. These LDHs were used as hosts of anions coming from pipemidic and nalidixic acid. XRD results confirm that these anions were hosted in the interlayer space of LDHs. Further, from 27Al NMR MAS characterization of an interaction between the brucite-like layers and anions was suggested. Then the hybrids LDHs were used as biocide of Salmonella typhi and Escherichia coli. The release profile of pipemidic and nalidixic anions from hybrid LDHs occurs for periods as long as 3.5 hours. The free-organic acid LDHs were not able to kill S. Typhi, neither E. coli. In contrast, the hybrids LDHs eliminate almost completely bacteria within short times.",

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AU - Cruz, Alejandra Santana

AU - Flores, Jorge

AU - Guerra, Roberto

AU - Felipe, Carlos

AU - Lima, Enrique

PY - 2018/3/9

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AB - Samples of layered double hydroxides containing carbonates as compensating anions were prepared by the urea method. These LDHs were used as hosts of anions coming from pipemidic and nalidixic acid. XRD results confirm that these anions were hosted in the interlayer space of LDHs. Further, from 27Al NMR MAS characterization of an interaction between the brucite-like layers and anions was suggested. Then the hybrids LDHs were used as biocide of Salmonella typhi and Escherichia coli. The release profile of pipemidic and nalidixic anions from hybrid LDHs occurs for periods as long as 3.5 hours. The free-organic acid LDHs were not able to kill S. Typhi, neither E. coli. In contrast, the hybrids LDHs eliminate almost completely bacteria within short times.

KW - Adsorption

KW - Biocides

KW - Escherichia coli

KW - Layered Double Hydroxides

KW - Salmonella typhi

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Organic biocides hosted in layered double hydroxides: Enhancing antimicrobial activity: Hybrid organic-inorganic biocides

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Keywords

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