Assessing the Carboxymethylcellulose Copper-Montmorillonite Nanocomposite for Controlling the Infection of Erwinia carotovora in Potato (Solanum tuberosum L.)

Nanomaterials

Akbar Hossain¹  Milan Skalicky²  Pavla Vachova²  Marian Brestic³  Ryan Rienzie⁴  Devika De Costa⁴  NadeeshM. Adassooriya⁵  Lasantha Sendanayake⁵ 

[1] Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh;Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic;Department of Plant Physiology, Slovak University of Agriculture, Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovakia;Postgraduate Institute of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka;Postgraduate Institute of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka;

关键词: antimicrobial;    carboxymethylcellulose;    Cu²⁺ ions;    Pectobacterium carotovorum;    nanoclay;    nanocomposite;   

DOI  :  10.3390/nano11030802

来源: DOAJ

【 摘 要 】

A novel antimicrobial formulation based on carboxymethylcellulose (CMC) spray-coated Cu²⁺ intercalated montmorillonite (MMT) nanocomposite material was prepared and its morphology, internal structure, and bonding interactions were studied. Meanwhile, the antibacterial efficacy and release behavior of Cu²⁺ was also determined. PXRD patterns indicated the intercalation of Cu²⁺, while FTIR spectra and TGA traces confirmed the association of Cu−MMT with CMC. SEM study revealed the improvement of nanocomposites by CMC, without disturbing the clay structure. TEM and EDAX studies indicated the distribution of Cu (copper) throughout the composite. In vitro antibacterial assays performed with Erwinia carotovora revealed effective bacterial growth suppression, indicating the potential of this material in controlling soft rot of potatoes (Solanum tuberosum); also observed was a connection between growth inhibition and concentration of CMC spray coats indicating a positive relationship between Cu²⁺ release and concentration of the CMC coatings. The activity pattern of the nanocomposite displayed a significant degree of sustained-release behavior.

【 授权许可】

Unknown