Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts

A novel, eco-friendly, and biocompatible method was applied to form silver nanoparticles (AgNPs) in great water dock (<i>Lapathi radix</i>) (KB) and pu-erh (<i>Camellia sinensis</i>) (PE) extracts. The surface plasma resonance peak of green synthesized AgNPs at 451.8 nm for A...

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Autores principales:	Ewelina Jamróz, Agnieszka Cabaj, Lesław Juszczak, Joanna Tkaczewska, Małgorzata Zimowska, Agnieszka Cholewa-Wójcik, Paweł Krzyściak, Pavel Kopel
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	furcellaran gelatin hydrolysate chitosan double-layered films silver nanoparticles Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d145dfccbffd4b7cb226753082c813d2
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spelling	oai:doaj.org-article:d145dfccbffd4b7cb226753082c813d22021-11-25T18:14:44ZActive Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts10.3390/ma142269251996-1944https://doaj.org/article/d145dfccbffd4b7cb226753082c813d22021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6925https://doaj.org/toc/1996-1944A novel, eco-friendly, and biocompatible method was applied to form silver nanoparticles (AgNPs) in great water dock (<i>Lapathi radix</i>) (KB) and pu-erh (<i>Camellia sinensis</i>) (PE) extracts. The surface plasma resonance peak of green synthesized AgNPs at 451.8 nm for AgNPs+KB and 440.8 nm for AgNPs+PE was observed via spectral analysis of UV absorbance. In this study, double-layered biopolymer films (FUR/CHIT+HGEL) with AgNPs incorporated in KB solution (AgNPs+KB) and AgNPs in PE solution (AgNPs+PE), were successfully prepared using the casting method. The SEM, XRD, zeta potential and size analyses confirmed the presence of AgNP in the films. The addition of AgNPs in plant extracts improved antimicrobial and antioxidant activity and thermal stability, whereas WVTR experienced a decrease. The nanocomposite films’ orange-brown colour may aid in the protection of food products against UV rays. The composite films demonstrated antibacterial activity against food-borne pathogens and may offer potential in food packaging applications.Ewelina JamrózAgnieszka CabajLesław JuszczakJoanna TkaczewskaMałgorzata ZimowskaAgnieszka Cholewa-WójcikPaweł KrzyściakPavel KopelMDPI AGarticlefurcellarangelatin hydrolysatechitosandouble-layered filmssilver nanoparticlesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6925, p 6925 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	furcellaran gelatin hydrolysate chitosan double-layered films silver nanoparticles Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	furcellaran gelatin hydrolysate chitosan double-layered films silver nanoparticles Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Ewelina Jamróz Agnieszka Cabaj Lesław Juszczak Joanna Tkaczewska Małgorzata Zimowska Agnieszka Cholewa-Wójcik Paweł Krzyściak Pavel Kopel Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
description	A novel, eco-friendly, and biocompatible method was applied to form silver nanoparticles (AgNPs) in great water dock (<i>Lapathi radix</i>) (KB) and pu-erh (<i>Camellia sinensis</i>) (PE) extracts. The surface plasma resonance peak of green synthesized AgNPs at 451.8 nm for AgNPs+KB and 440.8 nm for AgNPs+PE was observed via spectral analysis of UV absorbance. In this study, double-layered biopolymer films (FUR/CHIT+HGEL) with AgNPs incorporated in KB solution (AgNPs+KB) and AgNPs in PE solution (AgNPs+PE), were successfully prepared using the casting method. The SEM, XRD, zeta potential and size analyses confirmed the presence of AgNP in the films. The addition of AgNPs in plant extracts improved antimicrobial and antioxidant activity and thermal stability, whereas WVTR experienced a decrease. The nanocomposite films’ orange-brown colour may aid in the protection of food products against UV rays. The composite films demonstrated antibacterial activity against food-borne pathogens and may offer potential in food packaging applications.
format	article
author	Ewelina Jamróz Agnieszka Cabaj Lesław Juszczak Joanna Tkaczewska Małgorzata Zimowska Agnieszka Cholewa-Wójcik Paweł Krzyściak Pavel Kopel
author_facet	Ewelina Jamróz Agnieszka Cabaj Lesław Juszczak Joanna Tkaczewska Małgorzata Zimowska Agnieszka Cholewa-Wójcik Paweł Krzyściak Pavel Kopel
author_sort	Ewelina Jamróz
title	Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
title_short	Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
title_full	Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
title_fullStr	Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
title_full_unstemmed	Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts
title_sort	active double-layered films enriched with agnps in great water dock root and pu-erh extracts
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d145dfccbffd4b7cb226753082c813d2
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Active Double-Layered Films Enriched with AgNPs in Great Water Dock Root and Pu-Erh Extracts

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