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Heaugwane D, Cerlati O, Belkhir K, Tarek Benkhaled B, Catrouillet S, Fabing I, Claparols C, Vedrenne M, Goudounèche D, Payré B, Lucia Bona B, Tosi A, Baldelli Bombelli F, Vicendo P, Lapinte V, Lonetti B, Mingotaud AF, Gibot L. Coumarin-poly(2-oxazoline)s as synergetic and protein-undetected nanovectors for photodynamic therapy. Int J Pharm 2024; 658:124186. [PMID: 38701908 DOI: 10.1016/j.ijpharm.2024.124186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Because of the difficult challenges of nanopharmaceutics, the development of a variety of nanovectors is still highly desired. Photodynamic therapy, which uses a photosensitizer to locally produce reactive oxygen species to kill the undesired cells, is a typical example for which encapsulation has been shown to be beneficial. The present work describes the use of coumarin-functionalized polymeric nanovectors based on the self-assembly of amphiphilic poly(2-oxazoline)s. Encapsulation of pheophorbide a, a known PDT photosensitizer, is shown to lead to an increased efficiency compared to the un-encapsulated version. Interestingly, the presence of coumarin both enhances the desired photocytotoxicity and enables the crosslinking of the vectors. Various nanovectors are examined, differing by their size, shape and hydrophilicity. Their behaviour in PDT protocols on HCT-116 cells monolayers is described, the influence of their crosslinking commented. Furthermore, the formation of a protein corona is assessed.
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Affiliation(s)
- Diana Heaugwane
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Orélia Cerlati
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Kedafi Belkhir
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | | | | | - Isabelle Fabing
- Laboratoire SPCMIB, CNRS UMR5068, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, 31062 Toulouse cedex 9, France
| | - Catherine Claparols
- Institut de Chimie de Toulouse, Université Toulouse 3 Paul Sabatier, ICT-FR CNRS 2599, 31062 Toulouse France
| | - Marc Vedrenne
- Institut de Chimie de Toulouse, Université Toulouse 3 Paul Sabatier, ICT-FR CNRS 2599, 31062 Toulouse France
| | - Dominique Goudounèche
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062 Toulouse cedex, France
| | - Bruno Payré
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062 Toulouse cedex, France
| | - Beatrice Lucia Bona
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Alice Tosi
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Patricia Vicendo
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Vincent Lapinte
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Barbara Lonetti
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Anne-Françoise Mingotaud
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France.
| | - Laure Gibot
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France.
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2
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He S, Zhang M, Chen B, Wei X, Su X. Modification of Welan gum with poly(2-oxazoline) to obtain thermoviscosifying polymer for enhanced oil recovery. Int J Biol Macromol 2024; 263:130193. [PMID: 38360243 DOI: 10.1016/j.ijbiomac.2024.130193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Thermoviscosifying polymers refer to a category of smart materials that exhibit a responsive behavior to environmental stimuli, specifically demonstrating a natural rise in viscosity of solutions as the temperature increases. The temperature-dependent behavior exhibited by thermally viscous polymers renders them potentially advantageous in the context of Enhanced Oil Recovery (EOR). There exists a dearth of research pertaining to the application of thermoviscosifying polymer for better recovery in reservoirs characterized by high temperatures and high salt content. In order to tackle the mentioned concerns, this study examined the utilization of welan gum modified with poly(2-oxazoline) as thermally responsive chain segments to enhance viscosity. The objective was to evaluate the ability to enhance viscosity under thermal conditions and to assess their effectiveness in displacement of reservoir oil in high temperature and high salt environments. This study aimed to establish a theoretical framework for understanding the correlation between the molecular structure and performance of novel thermally viscous polymers. Additionally, it sought to offer practical insights into designing the molecular structure of thermally viscous polymers suitable for polymer flooding in high temperature and high salt environments. Furthermore, the study proposed the application of these new thermoviscosifying polymers for EOR.
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Affiliation(s)
- Shuai He
- School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Mingmin Zhang
- Zhejiang Research Institute of Tianjin University, Shaoxing 312369, China.
| | - Bin Chen
- State Key Laboratory of Offshore Oilfield Exploitation, Tianjin 300452, China; CNOOC EnerTech-Drilling and Production Co., Tianjin 300452, China
| | - Xia Wei
- Research Institute of Experiment and Detection, Xinjiang Oilfield Company, Karamay 834000, China
| | - Xin Su
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
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Hu B, Zhang C, Zhu J, Yang J, Zheng Q, Zhang X, Cao J, Han L. Liquid-liquid biopolymers aqueous solution segregative phase separation in food: From fundamentals to applications-A review. Int J Biol Macromol 2024; 265:131044. [PMID: 38518933 DOI: 10.1016/j.ijbiomac.2024.131044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/07/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
As a result of the spontaneous movement of molecules, liquid-liquid biopolymer segregative phase separation takes place in an aqueous solution. The efficacy of this type of separation can be optimized under conditions where variables such as pH, temperature, and molecular concentrations have minimal impact on its dynamics. Recently, interest in the applications of biopolymers and their segregative phase separation-associated molecular stratification has increased, particularly in the food industry, where these methods permit the purification of specific particles and the embedding of microcapsules. The present review offers a comprehensive examination of the theoretical mechanisms that regulate the liquid-liquid biopolymers aqueous solution segregative phase separation, the factors that may exert an impact on this procedure, and the importance of this particular separation method in the context of food science. These discussion points also address existing difficulties and future possibilities related to the use of segregative phase separation in food applications. This highlights the potential for the design of novel functional foods and the enhancement of food properties.
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Affiliation(s)
- Bing Hu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China.
| | - Cunzhi Zhang
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Junzhe Zhu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Jixin Yang
- Faculty of Social and Life Sciences, Wrexham University, Mold Road, Wrexham LL11 2AW, United Kingdom
| | - Qiuyue Zheng
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Xiaobo Zhang
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Jijuan Cao
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Lingyu Han
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China.
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Zhang Y, Wang P, Li N, Guo C, Li S. The Effect of Topology on Block Copolymer Nanoparticles: Linear versus Star Block Copolymers in Toluene. Polymers (Basel) 2022; 14:polym14173691. [PMID: 36080766 PMCID: PMC9460934 DOI: 10.3390/polym14173691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Linear and star block copolymer (BCP) nanoparticles of (polystyrene-block-poly(4-vinylpyridine))n (PS-b-P4VP)n with arm numbers of 1, 2, 3, and 4 were prepared by two methods of polymerization-induced self-assembly (PISA) and general self-assembly of block copolymers in the low-polar organic solvent, toluene. The effect of the arm number on the size and/or morphology of the (PS-b-P4VP)n nanoassemblies synthesized by the two methods in toluene and on the polymerization kinetics was investigated in detail. Our results show that in toluene, a low-polar solvent, the topology not only affected the morphology of the BCP nanoparticles prepared by PISA, but also influenced the BCP nanoparticles synthesized through general self-assembly.
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Liu Y, Lei Y, Chen Y. Thermoresponsive Properties of Poly[oligo(ethylene glycol) sorbate]s Prepared by Organocatalyzed Group Transfer Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yujian Liu
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
| | - Yongyao Lei
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
| | - Yougen Chen
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong 518060, China
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