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Spherical polyelectrolyte nanogels as templates to prepare hollow silica nanocarriers: observation by small angle X-ray scattering and TEM

Han, Haoya ; Li, Li ; Tian, Yuchuan ; Wang, Yunwei ; Ye, Zhishuang ; Yang, Qingsong ; Wang, Yiming ; Klitzing, Regine von ; Guo, Xuhong (2021)
Spherical polyelectrolyte nanogels as templates to prepare hollow silica nanocarriers: observation by small angle X-ray scattering and TEM.
In: RSC Advances, 2017, 7 (76)
doi: 10.26083/tuprints-00019059
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Spherical polyelectrolyte nanogels as templates to prepare hollow silica nanocarriers: observation by small angle X-ray scattering and TEM
Language: English
Date: 2021
Place of Publication: Darmstadt
Year of primary publication: 2017
Publisher: Royal Society of Chemistry
Journal or Publication Title: RSC Advances
Volume of the journal: 7
Issue Number: 76
DOI: 10.26083/tuprints-00019059
Corresponding Links:
Origin: Secondary publication service
Abstract:

Hollow silica nanoparticles were prepared through generating a silica layer in spherical polyelectrolyte nanogels (SPN), which consisted of a solid core of polystyrene (PS) and a shell of crosslinked poly(acrylic acid) (PAA), followed by removing the PS core via solvent dissolution. Small angle X-ray scattering (SAXS) in combination with TEM were employed to observe SPN, silica–polymer composite, and hollow silica nanoparticles. It was confirmed that SAXS is a powerful method to monitor the generation of silica layer in SPN. The density and thickness of generated silica layer in SPN were found to be tunable by controlling the crosslinking density of the templates. The porous structure and pH sensitivity of silica layer allowed the obtained hollow silica to be ideal carriers for controlled drug delivery.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-190597
Classification DDC: 500 Science and mathematics > 530 Physics
500 Science and mathematics > 540 Chemistry
Divisions: Profile Areas > Thermo-Fluids & Interfaces
05 Department of Physics > Institute for Condensed Matter Physics
Date Deposited: 06 Sep 2021 12:23
Last Modified: 08 Aug 2023 09:14
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19059
PPN: 510419569
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