Green Biosynthesized Selenium Nanoparticles by Cinnamon Extract and Their Antimicrobial Activity and Application as Edible Coatings with Nano-Chitosan

Abstract

Bioactive nanocomposites were constructed, containing chitosan (Cht), extracted from shrimps’ wastes, and transformed into nanoparticles (NPs) using ionic-gelation. Selenium NPs (Se-NPs) were phytosynthesized using cinnamon (Cinnamomum zeylanicum) bark extract (CIE), characterized and evaluated with Cht-NPs as antimicrobial composites against bacterial food-borne pathogens “Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria monocytogenes” and as potential edible coating (EC) basements. The CIE-phytosynthesized Se-NPs had well-distributed and spherical shapes with 23.2 nm mean diameter. The CIE, CIE/Se-NPs, and innovative CIE/Se/Cht-NP composites exhibited distinguished antibacterial actions toward the entire screened pathogens; CIE/Se/Cht-NP composite was significantly the most potent. The formulated ECs from CIE/Se/Cht-NP nanocomposites had matching antibacterial manner, which was strengthened with CIE/Se-NP percentage increments. Scanning micrographs indicated the attachment of CIE/Se-NPs to bacterial cells to cause their complete lysis and death after 10 h of exposure. CIE/Se/Cht-NP composites are proposed as effectual control agents toward food-borne pathogens using efficient biological carriers and eco-friendly phytosynthesis protocol.

Application of Chitosan/Alginate Nanocomposite Incorporated with Phycosynthesized Iron Nanoparticles for Efficient Remediation of Chromium

“…The Cht functional reactive groups (e.g., primary/secondary amines and hydroxyl groups) and their distinguishing attributes (e.g., biocompatibility, non-toxicity, biodegradability, elevated adsorption capacity, mucoadhesion, antioxidant, antimicrobial, and anticancer activities) enable their applications in numerous fields, including HM removal and water/soil remediation [ 2 , 10 , 11 , 12 , 13 ]. These advantageous attributes of Cht could be greatly enhanced by its transformation into nanoparticles (NPs) form, mainly via cross-linking with sodium tripolyphosphate, and linking the formed Cht-NPs with further bioactive particles or compounds for augmenting their combined antimicrobial, anticancerous and environmental remediation potentialities [ 14 , 15 , 16 , 17 , 18 ]. Although Cht alone was very effectual as a coagulating and flocculating agent for HM and organic matter removal from wastewater [ 19 ], the cross-linked/modified Cht had higher capacity as an HM adsorbent.…”

“…For nanometals synthesis, contrary to the expensive, time-consuming, and complicated features of physical methods, and hazardous residues and toxicity from chemical methods, the biosynthesis (green synthesis) methods are much safer, easier, effectual, and inexpensive methods for NPs fabrication [ 18 ]. The Fe-NPs biosynthesis was successful using biological derivatives.…”

Application of Fish Collagen-Nanochitosan-Henna Extract Composites for the Control of Skin Pathogens and Accelerating Wound Healing

“…International Journal of Polymer Science particles, attachment to cells' membranes, interaction with intercellular components like DNA, and inhibition of their activities), but NCht particles have these attributes in superior manners, which make them ideal antimicrobial candidates [16,18,24,25]. The bioactivities of NCht (e.g., antimicrobial, anticancer, and preservative attributes) were illustrated to be augmented via nanopolymer incorporation with additional bioactive phytocompounds [18,26,41,58], which appointed the biocompatibility and synergy behavior of NCht when joining with other bioactive molecules.…”

“…The Cht was introduced as an effectual base for applications in skin care/regeneration, wound dressing, and tissue engineering [19,21]; the Cht main advantages depend on its combined unique characteristics such as biocompatibility, biodegradability, nontoxicity, and high adsorption capacity. The bioactivities of Cht are much augmented by its transforming into nanoforms, which provides it with greater reacted surfaces and charges to become more effective for WH, microbial inhibition, drug-carrying capabilities, and radical scavenging [22][23][24][25][26].…”

Innovative Approach for Controlling Black Rot of Persimmon Fruits by Means of Nanobiotechnology from Nanochitosan and Rosmarinic Acid-Mediated Selenium Nanoparticles

“…The Cht antimicrobial potentialities were demonstrated toward diverse microbial genera/species from bacteria, yeast or fungi [ 15 ]. The NPs formation from Cht (e.g., NCt) provided extra functionalities and bioactivities for this amazing biopolymer; the NCt was effectually employed as a potent antimicrobial, anticancer, drugs’ carrier, toxicant adsorbent, antioxidant, metals’ binder, anti-inflammatory, and nutraceuticals carrier [ 16 , 17 , 18 , 19 , 20 ].…”