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Advanced nanomedicine characterization by DLS and AF4-UV-MALS: Application to a HIV nanovaccine. J Pharm Biomed Anal 2019; 179:113017. [PMID: 31816470 DOI: 10.1016/j.jpba.2019.113017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/31/2019] [Accepted: 11/27/2019] [Indexed: 12/31/2022]
Abstract
Nanoformulations are complex systems where physicochemical properties determine their therapeutic efficacy and safety. In the case of nanovaccines, particle size and shape play a crucial role on the immune response generated. Furthermore, the antigen's integrity is also a key aspect to control when producing a nanovaccine. The determination of all those physicochemical properties is still an analytical challenge and the lack of well-established methods hinders the access of new therapeutics to the market. In this work, robust methods for the characterization of a novel HIV nanoparticle-based vaccine produced in good manufacturing practice (GMPs)-like environment were developed. With slightly polydisperse particles (< 0.2) close to 180 nm of size, batch-mode Dynamic Light Scattering (DLS) was validated to be used as a quality control technique in the pilot production plant. In addition, a high size resolution method using Asymmetrical Flow Field Flow Fractionation (AF4) demonstrated its ability to determine not only size and size distribution but also shape modification across the size and accurate quantification of the free active ingredient. Results showed a monomodal distribution of particles from 60 to 700 nm, most of them (> 90%) with size lower than 250 nm, consistent with more traditional techniques, and revealed a slight change in the structure of the particles induced by the presence of the antigen. Finally, a batch to batch variability lower than 20% was obtained by both DLS and AF4 methods indicating that preparation method was highly reproducible.
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Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/5423178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The adsorption of polymers affects the cost and oil recovery in oil reservoir exploitation and the flocculation effect in the treatment of oil sand tailings. The adhesion and adsorption of a hydrophobically modified polyacrylamide (HMPAM), i.e., P(AM-NaAA-C16DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal microbalance with dissipation (QCM-D) measurement. Our study indicates that HMPAM polymer has strong interaction with both silica and asphaltene. The adhesion force of HMPAM on silica was stronger than that on asphaltene surface. Consistently, the adsorption of HMPAM was also greater on silica surface, with a more rigid layer formed on the surface. For HMPAM/silica system, the attractive interaction and the strong adhesion are mainly driven by the hydrogen bonding and electrostatic interaction. For HMPAM/asphaltene system, it is mainly due to hydrophobic interaction between the long hydrocarbon chains of HMPAM and asphaltene. Furthermore, continuous adsorption of HMPAM was detected and multiple layers formed on both silica and asphaltene surfaces, which can be attributed to the hydrophobic chains of HMPAM polymers. This work has illustrated the interaction mechanism of HMPAM polymer on hydrophilic silica and hydrophobic asphaltene surfaces, which provide insight into the industrial applications of hydrophobically modified polymer.
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Mejia A, Rodriguez L, Schmitt C, Andreu N, Favéro C, Braun O, Dupuis G, Deniau E, Reynaud S, Grassl B. Synthesis and Viscosimetric Behavior of Poly(acrylamide- co-2-acrylamido-2-methylpropanesulfonate) Obtained by Conventional and Adiabatic Gel Process via RAFT/MADIX Polymerization. ACS OMEGA 2019; 4:11119-11125. [PMID: 31460210 PMCID: PMC6648298 DOI: 10.1021/acsomega.9b00975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
High molar masses homopolymers of both acrylamide (AM) and 2-acrylamido-2-methylpropanesulfonate (AMPS) as well as poly(AM-stat-AMPS) exhibiting a large range copolymer composition has been obtained via the optimization of a purely adiabatic gel process. Monomer concentrations ranging from 2.0 to 3.47 M have been successfully tested while keeping the control of the molar masses up to 5 × 106 g mol-1. The products have been characterized in terms of molecular mass and viscosimetric properties.
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Affiliation(s)
- Aurora Mejia
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
| | - Laurent Rodriguez
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
- SNF
S.A.S., ZAC de Milieux, 42163 Andrézieux Cedex, France
| | - Charlène Schmitt
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
| | - Nathalie Andreu
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
| | - Cedrick Favéro
- SNF
S.A.S., ZAC de Milieux, 42163 Andrézieux Cedex, France
| | - Olivier Braun
- SNF
S.A.S., ZAC de Milieux, 42163 Andrézieux Cedex, France
| | - Guillaume Dupuis
- SNF
S.A.S., ZAC de Milieux, 42163 Andrézieux Cedex, France
- Poweltec,
ZAC RUEIL 2000, 3 Rue
Paul Heroult, 92500 Rueil Malmaison, France
| | - Elise Deniau
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
| | - Stéphanie Reynaud
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
| | - Bruno Grassl
- CNRS/UNIV
PAU & PAYS ADOUR/E2S UPPA, Institut des sciences analytiques et
de physicochimie pour l’environnement et les matériaux
(IPREM), UMR 5254, 64000 Pau, France
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Gong H, Xu L, Xu G, Zhu T, Dong M. Effects of Sodium Benzoate and Sodium Chloride on the Aggregation Behaviors of PEO‐PPO‐ph‐PPO‐PEO and PPO‐PEO‐ph‐PEO‐PPO at the Air/Water Interface. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Houjian Gong
- School of Petroleum Engineering China University of Petroleum (East China) Qingdao, 266580 P. R. China
- Key Laboratory of Colloid and Interface Chemistry Shandong University, Ministry of Education, Shandong University Jinan, 250100 P. R. China
| | - Long Xu
- School of Petroleum Engineering China University of Petroleum (East China) Qingdao, 266580 P. R. China
| | - Guiying Xu
- Key Laboratory of Colloid and Interface Chemistry Shandong University, Ministry of Education, Shandong University Jinan, 250100 P. R. China
| | - Teng Zhu
- School of Petroleum Engineering China University of Petroleum (East China) Qingdao, 266580 P. R. China
| | - Mingzhe Dong
- School of Petroleum Engineering China University of Petroleum (East China) Qingdao, 266580 P. R. China
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Sarsenbekuly B, Kang W, Fan H, Yang H, Dai C, Zhao B, Aidarova SB. Study of salt tolerance and temperature resistance of a hydrophobically modified polyacrylamide based novel functional polymer for EOR. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.10.051] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Løbø Viken A, Skauge T, Spildo K. Rheological properties of a hydrophobically modified anionic polymer: Effect of varying salinity and amount of hydrophobic moieties. J Appl Polym Sci 2016. [DOI: 10.1002/app.43520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Tormod Skauge
- Centre for Integrated Petroleum Research (CIPR); Uni Research; Bergen 5007 Norway
| | - Kristine Spildo
- Department of Chemistry; University of Bergen; Bergen 5007 Norway
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Rigolini J, Bombled F, Ehrenfeld F, El Omari K, Le Guer Y, Grassl B. 2D-Infrared Thermography Monitoring of Ultrasound-Assisted Polymerization of Water-Soluble Monomer in a Gel Process. Macromolecules 2011. [DOI: 10.1021/ma200706j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julien Rigolini
- Institut Pluridisciplinaire de Recherche Environnement et Matériaux (IPREM UMR 5254), Equipe de Physique et Chimie des Polymères (EPCP), Université de Pau et des Pays de l'Adour (UPPA), Hélioparc, Avenue P. Angot, 64000 Pau, France
| | - Florine Bombled
- Institut Pluridisciplinaire de Recherche Environnement et Matériaux (IPREM UMR 5254), Equipe de Physique et Chimie des Polymères (EPCP), Université de Pau et des Pays de l'Adour (UPPA), Hélioparc, Avenue P. Angot, 64000 Pau, France
| | - Francis Ehrenfeld
- Institut Pluridisciplinaire de Recherche Environnement et Matériaux (IPREM UMR 5254), Equipe de Physique et Chimie des Polymères (EPCP), Université de Pau et des Pays de l'Adour (UPPA), Hélioparc, Avenue P. Angot, 64000 Pau, France
| | - Kamal El Omari
- Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au Génie Electrique (SIAME), Fédération IPRA, Université de Pau et des Pays de l'Adour (UPPA), Bat. D'Alembert, rue Jules Ferry, BP 7511, 64075 Pau Cedex, France
| | - Yves Le Guer
- Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au Génie Electrique (SIAME), Fédération IPRA, Université de Pau et des Pays de l'Adour (UPPA), Bat. D'Alembert, rue Jules Ferry, BP 7511, 64075 Pau Cedex, France
| | - Bruno Grassl
- Institut Pluridisciplinaire de Recherche Environnement et Matériaux (IPREM UMR 5254), Equipe de Physique et Chimie des Polymères (EPCP), Université de Pau et des Pays de l'Adour (UPPA), Hélioparc, Avenue P. Angot, 64000 Pau, France
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Rodríguez M, Xue J, Gouveia LM, Müller AJ, Sáez AE, Rigolini J, Grassl B. Shear rheology of anionic and zwitterionic modified polyacrylamides. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.10.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Linsinger TP, Roebben G, Solans C, Ramsch R. Reference materials for measuring the size of nanoparticles. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2010.09.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Rigolini J, Grassl B, Reynaud S, Billon L. Microwave-assisted nitroxide-mediated polymerization for water-soluble homopolymers and block copolymers synthesis in homogeneous aqueous solution. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24385] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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