Cargando…

Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns

Urea is the most common form of nitrogenous fertiliser. Recently, research has focused on the development of delivery systems to prolong fertiliser release and prevent fertiliser loss through leaching and volatilization. This study investigates and compares single- and double-layered hollow nanofibr...

Descripción completa

Detalles Bibliográficos
Autores principales: Javazmi, Leila, Low, Tobias, Ash, Gavin, Young, Anthony
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7665195/
https://www.ncbi.nlm.nih.gov/pubmed/33184334
http://dx.doi.org/10.1038/s41598-020-76395-6
_version_ 1783609971771965440
author Javazmi, Leila
Low, Tobias
Ash, Gavin
Young, Anthony
author_facet Javazmi, Leila
Low, Tobias
Ash, Gavin
Young, Anthony
author_sort Javazmi, Leila
collection PubMed
description Urea is the most common form of nitrogenous fertiliser. Recently, research has focused on the development of delivery systems to prolong fertiliser release and prevent fertiliser loss through leaching and volatilization. This study investigates and compares single- and double-layered hollow nanofibrous yarns as novel delivery systems to encapsulate and release urea. Single-layered hollow poly l-lactic acid (PLLA) nanofibre yarns loaded with urea fertiliser were fabricated using a customized electrospinning. Double-layered hollow nanofibre yarns were produced by electrospinning polyhydroxybutyrate (PHB) nanofibres as an outer layer, with urea-impregnated PLLA nanofibres as the inner layer. Scanning electron microscopy (SEM) with an energy-dispersive spectroscopy (EDS) was used to characterize the morphology of hollow electrospun nanofibre yarns. A total nitrogen instrument (TNM-1) was used to study the urea release from single- and double-layered hollow nanofibres yarn in water. A Carbon:Nitrogen (CN) elemental analyser determined encapsulated nitrogen in PLLA nanofibres samples. Results indicated that urea-impregnated double-layered hollow nanofibre yarns significantly started nitrogen releasing at much lower amount during first 12 h compared to single-layered hollow nanofibre yarns (P value = 0.000). In conclusion, double-layered hollow nanofibre yarn has potential as an effective alternative to current methods for the slow release of fertilisers and other plant-required chemicals.
format Online
Article
Text
id pubmed-7665195
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-76651952020-11-16 Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns Javazmi, Leila Low, Tobias Ash, Gavin Young, Anthony Sci Rep Article Urea is the most common form of nitrogenous fertiliser. Recently, research has focused on the development of delivery systems to prolong fertiliser release and prevent fertiliser loss through leaching and volatilization. This study investigates and compares single- and double-layered hollow nanofibrous yarns as novel delivery systems to encapsulate and release urea. Single-layered hollow poly l-lactic acid (PLLA) nanofibre yarns loaded with urea fertiliser were fabricated using a customized electrospinning. Double-layered hollow nanofibre yarns were produced by electrospinning polyhydroxybutyrate (PHB) nanofibres as an outer layer, with urea-impregnated PLLA nanofibres as the inner layer. Scanning electron microscopy (SEM) with an energy-dispersive spectroscopy (EDS) was used to characterize the morphology of hollow electrospun nanofibre yarns. A total nitrogen instrument (TNM-1) was used to study the urea release from single- and double-layered hollow nanofibres yarn in water. A Carbon:Nitrogen (CN) elemental analyser determined encapsulated nitrogen in PLLA nanofibres samples. Results indicated that urea-impregnated double-layered hollow nanofibre yarns significantly started nitrogen releasing at much lower amount during first 12 h compared to single-layered hollow nanofibre yarns (P value = 0.000). In conclusion, double-layered hollow nanofibre yarn has potential as an effective alternative to current methods for the slow release of fertilisers and other plant-required chemicals. Nature Publishing Group UK 2020-11-12 /pmc/articles/PMC7665195/ /pubmed/33184334 http://dx.doi.org/10.1038/s41598-020-76395-6 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Javazmi, Leila
Low, Tobias
Ash, Gavin
Young, Anthony
Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title_full Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title_fullStr Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title_full_unstemmed Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title_short Investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
title_sort investigation of slow release of urea from biodegradable single- and double-layered hollow nanofibre yarns
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7665195/
https://www.ncbi.nlm.nih.gov/pubmed/33184334
http://dx.doi.org/10.1038/s41598-020-76395-6
work_keys_str_mv AT javazmileila investigationofslowreleaseofureafrombiodegradablesingleanddoublelayeredhollownanofibreyarns
AT lowtobias investigationofslowreleaseofureafrombiodegradablesingleanddoublelayeredhollownanofibreyarns
AT ashgavin investigationofslowreleaseofureafrombiodegradablesingleanddoublelayeredhollownanofibreyarns
AT younganthony investigationofslowreleaseofureafrombiodegradablesingleanddoublelayeredhollownanofibreyarns