Functionalization of additive-manufactured Ti6Al4V scaffolds with poly(allylamine hydrochloride)/poly(styrene sulfonate) bilayer microcapsule system containing dexamethasone

2021 ◽  
pp. 125099
Author(s):  
Ekaterina Chudinova ◽  
Andrey Koptyug ◽  
Yulia Mukhortova ◽  
Artyom Pryadko ◽  
Anastasiya Volkova ◽  
...  
Keyword(s):  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate

Stabilization of Hydrogen-Bonded Poly(N-isopropylacrylamide) Multilayers by a Dual Electrostatic/Hydrogen Bonding Copolymer

2005 ◽  
Vol 58 (6) ◽  
pp. 442 ◽  
Author(s):  
John F. Quinn ◽  
Frank Caruso
Keyword(s):  
Thin Films ◽  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Ph Stability ◽  
Multilayer Thin Films ◽  
Film Morphology ◽  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Multilayer Assemblies ◽  
Poly Styrene Sulfonate

Multilayer thin films were prepared based on hydrogen bonding between poly(N-isopropylacrylamide) (PNiPAAm), and poly(styrene sulfonate-co-maleic acid) (PSSMA). Since PSSMA is capable of associating with other polymers through both hydrogen bonding and electrostatic interactions, multilayer assemblies incorporating PSSMA, PNiPAAm, and intercalated poly(allylamine hydrochloride) (PAH) layers were also prepared. Intercalated PAH layers were included to improve the pH stability of the film by introducing electrostatic linkages into the assembly. Film construction was studied as a function of pH of the deposition solution and the number of inserted PAH layers. Film morphology varied significantly with incorporation of PAH into the film. It was also demonstrated that by intercalating several PAH layers within the PNiPAAm/PSSMA assembly, the pH stability of the films at pH 5.8 could be substantially improved.

Encapsulation of photoactive porphyrinoids in polyelectrolyte hollow microcapsules viewed by fluorescence lifetime imaging microscopy (FLIM)

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 79050-79060 ◽  
Author(s):  
Raquel Teixeira ◽  
Vanda Vaz Serra ◽  
Pedro M. R. Paulo ◽  
Suzana M. Andrade ◽  
Sílvia M. B. Costa
Keyword(s):  
Fluorescence Lifetime ◽  
Fluorescence Lifetime Imaging Microscopy ◽  
Fluorescence Lifetime Imaging ◽  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Lifetime Imaging ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate

Fluorescence Lifetime Imaging Microscopy (FLIM) was used to investigate the encapsulation of porphyrinoids in multilayer hollow microcapsules assembled layer by layer with poly(styrene sulfonate) (PSS) and poly(allylamine hydrochloride) (PAH).

scholarly journals A poly(allylamine hydrochloride)/poly(styrene sulfonate) microcapsule-coated cotton fabric for stimulus-responsive textiles

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17731-17738
Author(s):  
Zhiqi Zhao ◽  
Qiujin Li ◽  
Jixian Gong ◽  
Zheng Li ◽  
Jianfei Zhang
Keyword(s):  
Cotton Fabric ◽  
Sodium Salt ◽  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Stimulus Responsive ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate ◽  
Coated Cotton

This study reports a stimulus-responsive fabric incorporating a combination of microcapsules, containing polyelectrolytes poly(allylamine hydrochloride) (PAH) and poly(styrene sulfonate) sodium salt (PSS), formed via a layer-by-layer (LBL) approach.

scholarly journals 3-Dimensional stable polyelectrolyte hollow capsules: preparation and spontaneous encapsulation

RSC Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1260-1265 ◽  
Author(s):  
Y. D. Chen ◽  
J. J. Xu ◽  
Y. Wang ◽  
H. Chen ◽  
Q. J. Luo ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
3 Dimensional ◽  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate ◽  
Size Controlled ◽  
Poly Acrylic Acid

By alternatively depositing poly(styrene)-co-poly(acrylic acid) and poly(allylamine hydrochloride) on poly(styrene sulfonate sodium) hybrid CaCO3 microparticles, a series of size-controlled 3-dimensional stable capsules were obtained after the removal of hybrid templates.

Preparation and Release Behavior of Polyelectrolyte Microcapsules

2012 ◽  
Vol 627 ◽  
pp. 765-769
Author(s):  
Wei Zhang ◽  
Qiu Jin Li ◽  
Ji Xian Gong ◽  
Hui Qin Li ◽  
Jian Fei Zhang ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Release Behavior ◽  
Styrene Sulfonate ◽  
Polyelectrolyte Microcapsules ◽  
Colloidal Crystallization ◽  
Nitrate Tetrahydrate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate ◽  
Oppositely Charged ◽  
Disodium Ethylenediaminetetraacetate

Hybrid calcium carbonate (CaCO3)/poly(styrene sulfonate) (PSS) particle, as a template, was synthesized using colloidal crystallization with the presence of nitrate tetrahydrate (Ca(NO3)2•4H2O), sodium carbonate (Na2CO3) and PSS. Microcapsule was prepared by template-assisted layer-by-layer (LbL) technology in solutions of two oppositely charged polyelectrolytes, poly(styrenesulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) alternately, followed by dissolving the template with disodium ethylenediaminetetraacetate (EDTA). The release behavior of rhodamine B (RhB) from the microcapsules was examined and the rates of release at different pH were studied.

Counterions in Poly(allylamine hydrochloride) and Poly(styrene sulfonate) Layer-by-Layer Films

Langmuir ◽  
2004 ◽  
Vol 20 (19) ◽  
pp. 8103-8109 ◽  
Author(s):  
João M. C. Lourenço ◽  
Paulo António Ribeiro ◽  
Ana Maria Botelho do Rego ◽  
Francisco M. Braz Fernandes ◽  
Augusto M. C. Moutinho ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate
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