Size control of hollow poly-allylamine hydrochloride/poly-sodium styrene sulfonate microcapsules using the bubble template method

Soft Matter ◽  
2011 ◽  
Vol 7 (5) ◽  
pp. 1897 ◽  
Author(s):  
Jay Jesus Molino Cornejo ◽  
Eitaro Matsuoka ◽  
Hirofumi Daiguji
Keyword(s):  
Size Control ◽  
Template Method ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Bubble Template

Size Control of Hollow Polylactic Acid Microcapsules and Hollow Polyelectrolyte Microcapsules in Bubble Template Method

2011 ◽  
Author(s):  
Jay J. Molino ◽  
Hirofumi Daiguji ◽  
Fumio Takemura
Keyword(s):  
Colloidal Particles ◽  
Methylene Chloride ◽  
Size Control ◽  
Bubble Surface ◽  
Template Method ◽  
Poly Lactic Acid ◽  
Solution Ph ◽  
Polyelectrolyte Microcapsules ◽  
Allylamine Hydrochloride ◽  
Bubble Template

Biodegradable hollow poly-lactic acid (PLA) microcapsules and hollow polyelectrolyte microcapsules made of poly-allylamine hydrochloride (PAH) were synthesized by directly adsorbing these polymers to N2 (air) and CO2 microbubbles respectively, using the bubble template method. To manufacture PLA microcapsules, droplets of a solution of PLA in methylene chloride (CH2Cl2) were emulsified in water. Then by solvent diffusion, N2 microbubbles nucleated inside the droplets and PLA adsorbed to the bubble surface to form microcapsules. Likewise, for PAH microcapsules, when an aqueous solution of Na2CO3 including PAH is titrated with HCl, within a specific range 7.5 < pH < 9.0, colloidal PAH particles are formed and then adsorbs to the nucleated CO2 microbubbles. This yields to hollow PAH microcapsules. If the solution pH is outside this range, colloidal particles can no longer exist, thus no microcapsules can be synthesized. This document mainly focuses on size control of these two types of microcapsules.

A novel high temperature retarder applied to a long cementing interval

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14421-14426 ◽  
Author(s):  
Ya Lu ◽  
Ming Li ◽  
Zihan Guo ◽  
Xiaoyang Guo
Keyword(s):  
High Temperature ◽  
Free Radical ◽  
Itaconic Acid ◽  
Radical Copolymerization ◽  
Hydroxyethyl Methacrylate ◽  
Free Radical Copolymerization ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate

A retarder comprised of sodium styrene sulfonate, itaconic acid and hydroxyethyl methacrylate was synthesized by aqueous free radical copolymerization, which can be applied to a long cementing interval.

Biomaterial-Guided Recombinant Adeno-associated Virus Delivery from Poly(Sodium Styrene Sulfonate)-Grafted Poly(ɛ-Caprolactone) Films to Target Human Bone Marrow Aspirates

2020 ◽  
Vol 26 (7-8) ◽  
pp. 450-459 ◽  
Author(s):  
Jagadeesh K. Venkatesan ◽  
Céline Falentin-Daudré ◽  
Amélie Leroux ◽  
Véronique Migonney ◽  
Magali Cucchiarini
Keyword(s):  
Bone Marrow ◽  
Human Bone ◽  
Human Bone Marrow ◽  
Adeno Associated Virus ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Virus Delivery

scholarly journals Thiol-Poly(Sodium Styrene Sulfonate) (PolyNaSS-SH) Gold Complexes: From a Chemical Design to a One-Step Synthesis of Hybrid Gold Nanoparticles and Their Interaction with Human Proteins

ACS Omega ◽  
2020 ◽  
Vol 5 (14) ◽  
pp. 8137-8145
Author(s):  
Céline Falentin-Daudré ◽  
Mounia Aitouakli ◽  
Jean Sébastien Baumann ◽  
Nadia Bouchemal ◽  
Vincent Humblot ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Complexes ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Chemical Design ◽  
Human Proteins ◽  
One Step

Magnetic nanomedicine for CD133-expressing cancer therapy using locoregional hyperthermia combined with chemotherapy

Nanomedicine ◽  
2020 ◽  
Vol 15 (26) ◽  
pp. 2543-2561
Author(s):  
Shu-Jyuan Yang ◽  
Shu-Yi Tseng ◽  
Chung-Hao Wang ◽  
Tai-Horng Young ◽  
Ke-Cheng Chen ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Superparamagnetic Iron Oxide ◽  
Regional Hyperthermia ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Magnetic Resonance Imaging Contrast ◽  
Weighted Magnetic Resonance Imaging

Aim: Cells with CD133 overexpression, a theoretical cancer stem cells (CSCs) marker, have been shown to induce colorectal cancer (CRC) initiation and relapse. Therefore, the detection and treatment of CSCs are the most important factors in overcoming CRC. Materials & methods: Herein, we developed a magnetite-based nanomedicine (superparamagnetic iron oxide@poly(sodium styrene sulfonate)/irinotecan/human serum albumin-anti-CD133 nanoparticle) using loco-regional hyperthermia combined with chemotherapy for CRC- and CSC-specific targeting treatment. Results: The designed nanoparticles were highly biocompatible and exhibited a higher temperature increase rate under radiofrequency generator irradiation. The nanoparticles could be used as a T2-weighted magnetic resonance imaging contrast media, and also applied during hyperthermia and chemotherapy to display a synergistic anticancer effect. Conclusion: Therefore, the superparamagnetic iron oxide@poly(sodium styrene sulfonate)/irinotecan/human serum albumin-anti-CD133 nanoparticles are a powerful candidate for future antitumor strategies.

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