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Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone)
This study used scanning electron microscopy via 3D dissection coupled with synchrotron radiation with microfocal beams of both small-angle X-ray scattering and wide-angle X-ray diffraction to analyze the periodic crystal aggregates of unusual poly(p-dioxanone) (PPDO) dendritic cactus-arm-like ring...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574605/ https://www.ncbi.nlm.nih.gov/pubmed/37836306 http://dx.doi.org/10.3390/nano13192665 |
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author | Hao, Min-Han Nagarajan, Selvaraj Woo, Eamor M. |
author_facet | Hao, Min-Han Nagarajan, Selvaraj Woo, Eamor M. |
author_sort | Hao, Min-Han |
collection | PubMed |
description | This study used scanning electron microscopy via 3D dissection coupled with synchrotron radiation with microfocal beams of both small-angle X-ray scattering and wide-angle X-ray diffraction to analyze the periodic crystal aggregates of unusual poly(p-dioxanone) (PPDO) dendritic cactus-arm-like ring bands upon crystallization with a diluent poly(vinyl alcohol) (PVA) that is capable of hydrogen bonding interactions with PPDO. Three-dimensional microscopy interior dissection clearly expounds that the banded periodic architectures are packed by alternately normal-oriented flat-on crystals underneath the valley, periodically interfaced/branched with horizontal-oriented edge-on fibrils underneath the ridge. The oblique angles between the valley’s flat-on crystals with the branches are ca. 25–45° (depending on gradient inclines and bending), which is also proved by the azimuthal angle in microbeam X-ray diffraction. The grating-like strut-rib assembly in the PPDO cactus-arm-like ring bands is further proved by novel iridescence tests. |
format | Online Article Text |
id | pubmed-10574605 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105746052023-10-14 Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) Hao, Min-Han Nagarajan, Selvaraj Woo, Eamor M. Nanomaterials (Basel) Article This study used scanning electron microscopy via 3D dissection coupled with synchrotron radiation with microfocal beams of both small-angle X-ray scattering and wide-angle X-ray diffraction to analyze the periodic crystal aggregates of unusual poly(p-dioxanone) (PPDO) dendritic cactus-arm-like ring bands upon crystallization with a diluent poly(vinyl alcohol) (PVA) that is capable of hydrogen bonding interactions with PPDO. Three-dimensional microscopy interior dissection clearly expounds that the banded periodic architectures are packed by alternately normal-oriented flat-on crystals underneath the valley, periodically interfaced/branched with horizontal-oriented edge-on fibrils underneath the ridge. The oblique angles between the valley’s flat-on crystals with the branches are ca. 25–45° (depending on gradient inclines and bending), which is also proved by the azimuthal angle in microbeam X-ray diffraction. The grating-like strut-rib assembly in the PPDO cactus-arm-like ring bands is further proved by novel iridescence tests. MDPI 2023-09-28 /pmc/articles/PMC10574605/ /pubmed/37836306 http://dx.doi.org/10.3390/nano13192665 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hao, Min-Han Nagarajan, Selvaraj Woo, Eamor M. Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title | Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title_full | Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title_fullStr | Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title_full_unstemmed | Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title_short | Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone) |
title_sort | probing the nano-assembly leading to periodic gratings in poly(p-dioxanone) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574605/ https://www.ncbi.nlm.nih.gov/pubmed/37836306 http://dx.doi.org/10.3390/nano13192665 |
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