1
|
Joo JU, Park CH, Yang J, Ko Y, Jee SS, Ahn H, Kim DP. Flash precipitation of random copolymers in a micro-mixer for controlling the size and surface charge of nanoparticles. RSC Adv 2024; 14:19147-19153. [PMID: 38882478 PMCID: PMC11177181 DOI: 10.1039/d4ra01433b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 05/19/2024] [Indexed: 06/18/2024] Open
Abstract
Precisely controlling the size and surface chemistry of polymeric nanoparticles (P-NPs) is critical for their versatile engineering and biomedical applications. In this work, various NPs of amphipathic random copolymers were comparatively produced by the flash nanoprecipitation (FNP) method using a tube-in-tube type of micro-mixer up to 330 mg min-1 in production scale in a kinetically controlled manner. The NPs obtained from poly(styrene-co-maleic acid), poly(styrene-co-allyl alcohol), and poly(methyl methacrylate-co-methacrylic acid) were concurrently controlled in the range 51-819 nm in size with narrow polydispersity index (<0.1) and -44 to -16 mV in zeta potential, by depending not only on the polymeric chemistry and the concentration but also the mixing behavior of good solvents (THF, alcohols) and anti-solvent (water) under three flow regimes (laminar, vortex and turbulence, turbulent jet). Moreover, the P(St-MA) derived NPs under turbulent jet flow conditions were post-treated in the initial solution mixture for up to 16 h, resulting in lowering of the zeta potential to -52 mV from the initial -27 mV and decreasing size to 46 nm from 50 nm by further migration of hydrophilic segments with -COOH groups on the outer surface, and the removal of THF trapped in the hydrophobic core.
Collapse
Affiliation(s)
- Jeong-Un Joo
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Chae-Hyeon Park
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Jianwen Yang
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Yoonseok Ko
- Samsung Advanced Institute of Technology (SAIT) Suwon 16678 Republic of Korea
| | - Sang Soo Jee
- Samsung Advanced Institute of Technology (SAIT) Suwon 16678 Republic of Korea
| | - Hyungju Ahn
- 9A U-SAXS Beamline (PLS-II), Pohang Accelerator Laboratory (PAL), POSTECH Republic of Korea
| | - Dong-Pyo Kim
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| |
Collapse
|
2
|
Taheriazam A, Entezari M, Firouz ZM, Hajimazdarany S, Hossein Heydargoy M, Amin Moghadassi AH, Moghadaci A, Sadrani A, Motahhary M, Harif Nashtifani A, Zabolian A, Tabari T, Hashemi M, Raesi R, Jiang M, Zhang X, Salimimoghadam S, Ertas YN, Sun D. Eco-friendly chitosan-based nanostructures in diabetes mellitus therapy: Promising bioplatforms with versatile therapeutic perspectives. ENVIRONMENTAL RESEARCH 2023; 228:115912. [PMID: 37068723 DOI: 10.1016/j.envres.2023.115912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 05/16/2023]
Abstract
Nature-derived polymers, or biopolymers, are among the most employed materials for the development of nanocarriers. Chitosan (CS) is derived from the acetylation of chitin, and this biopolymer displays features such as biocompatibility, biodegradability, low toxicity, and ease of modification. CS-based nano-scale delivery systems have been demonstrated to be promising carriers for drug and gene delivery, and they can provide site-specific delivery of cargo. Owing to the high biocompatibility of CS-based nanocarriers, they can be used in the future in clinical trials. On the other hand, diabetes mellitus (DM) is a chronic disease that can develop due to a lack of insulin secretion or insulin sensitivity. Recently, CS-based nanocarriers have been extensively applied for DM therapy. Oral delivery of insulin is the most common use of CS nanoparticles in DM therapy, and they improve the pharmacological bioavailability of insulin. Moreover, CS-based nanostructures with mucoadhesive features can improve oral bioavailability of insulin. CS-based hydrogels have been developed for the sustained release of drugs and the treatment of DM complications such as wound healing. Furthermore, CS-based nanoparticles can mediate delivery of phytochemicals and other therapeutic agents in DM therapy, and they are promising compounds for the treatment of DM complications, including nephropathy, neuropathy, and cardiovascular diseases, among others. The surface modification of nanostructures with CS can improve their properties in terms of drug delivery and release, biocompatibility, and others, causing high attention to these nanocarriers in DM therapy.
Collapse
Affiliation(s)
- Afshin Taheriazam
- Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zeinab Mohammadi Firouz
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Shima Hajimazdarany
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Amir Hossein Amin Moghadassi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Amin Sadrani
- Department of Orthopedics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Amirhossein Zabolian
- Department of Orthopedics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Teimour Tabari
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Rasoul Raesi
- Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical-Surgical Nursing, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mengyuan Jiang
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, China
| | - Xuebin Zhang
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, China
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Yavuz Nuri Ertas
- Department of Biomedical Engineering, Erciyes University, Kayseri, Turkey; ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, Turkey.
| | - Dongdong Sun
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, China.
| |
Collapse
|
3
|
Ma TL, Du WT, Kuo SW. Construction of micelles and hollow spheres via the self-assembly behavior of poly(styrene- alt-pHPMI) copolymers with poly(4-vinylpyridine) derivatives mediated by hydrogen bonding interactions. SOFT MATTER 2023. [PMID: 37314312 DOI: 10.1039/d3sm00595j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study describes the preparation of hydrogen bonding connected micelles, consisting of a poly(styrene-alt-(para-hydroxyphenylmaleimide)) [poly(S-alt-pHPMI)] core and a poly(4-vinylpyridine) (P4VP) derivative shell in a selective solvent. The aim was to modify hydrogen bonding interaction sites at the core/shell interface by synthesizing P4VP derivatives in three different sequences, namely, P4VP homopolymers, PS-co-P4VP random copolymers, and block copolymers. TEM images showed the successful self-assembly of poly(S-alt-pHPMI)/PS-co-P4VP inter-polymer complexes into spherical structures. To dissolve the core structures, 1,4-dibromobutane was used as a cross-linking agent to tighten the PS-co-P4VP shell. The morphologies, particle sizes, hydrogen bonding, cross-linking reaction, and core dissolution were confirmed by TEM, DLS, FTIR, and AFM analyses. Poly(S-alt-pHPMI)/PS41-r-P4VP59 hydrogen bonding connected micelles, cross-linked micelles, and hollow spheres were larger and more irregular than poly(S-alt-pHPMI)/P4VP inter-polymer complexes due to the random copolymer architecture and the decrease in intermolecular hydrogen bonds. However, poly(S-alt-pHPMI)/PS68-b-P4VP32 resulted in rod- or worm-like structures after core dissolution.
Collapse
Affiliation(s)
- Tzu-Ling Ma
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
| | - Wei-Ting Du
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
4
|
Uddin MA, Yu H, Wang L, Liu J, Mehmood S, Amin BU, Haq F, Liang R, Shen D, Ni Z. Multi-stimuli-responsive performance and morphological changes of radical-functionalized self-assembled micellar nanoaggregates and their multi-triggered drug release. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126807] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
5
|
Migliore N, Picchioni F, Raffa P. The effect of macromolecular structure on the rheology and surface properties of amphiphilic random polystyrene-r-poly(meth)acrylate copolymers prepared by RDRP. SOFT MATTER 2020; 16:2836-2846. [PMID: 32104866 DOI: 10.1039/d0sm00153h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work rheological and surface properties of various random copolymers of styrene and sodium (meth)acrylate, prepared using reversible deactivation radical polymerization (RDRP), were studied. It is shown that the properties of these polymers in water solution, relevant for several applications, are affected by their chemical structure and molecular weight. Cryo-TEM images of their concentrated water solutions do not show the presence of nano-objects as micelles, however the existence of some aggregates seems to be confirmed by fluorescence measurements using pyrene as a hydrophobic probe and by surface tension measurements. Moreover, interesting results are displayed about the viscosity as well as the surface tension of these water polymer solutions, due probably to different interactions at the molecular level as suggested by fluorescence measurements.
Collapse
Affiliation(s)
- Nicola Migliore
- Department of Chemical Engineering, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
| | - Francesco Picchioni
- Department of Chemical Engineering, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
| | - Patrizio Raffa
- Department of Chemical Engineering, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
| |
Collapse
|
6
|
Li H, Zhang Z, Bao X, Xu G, Yao P. Fatty acid and quaternary ammonium modified chitosan nanoparticles for insulin delivery. Colloids Surf B Biointerfaces 2018; 170:136-143. [DOI: 10.1016/j.colsurfb.2018.05.063] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/08/2018] [Accepted: 05/27/2018] [Indexed: 11/25/2022]
|
7
|
Montaudo MS, Puglisi C, Battiato S, Zappia S, Destri S, Samperi F. An innovative approach for the chemical structural characterization of poly(styrene 4-vinylpyridine) copolymers by matrix-assisted laser desorption/ionization time of flight mass spectrometry. J Appl Polym Sci 2018. [DOI: 10.1002/app.46976] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. S. Montaudo
- Istituto per i Polimeri; Compositi e Biomateriali (IPCB) Sede Secondaria di Catania, CNR; Via Gaifami 18, 95126 Catania Italy
| | - C. Puglisi
- Istituto per i Polimeri; Compositi e Biomateriali (IPCB) Sede Secondaria di Catania, CNR; Via Gaifami 18, 95126 Catania Italy
| | - S. Battiato
- Istituto per i Polimeri; Compositi e Biomateriali (IPCB) Sede Secondaria di Catania, CNR; Via Gaifami 18, 95126 Catania Italy
| | - S. Zappia
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR; Via A. Corti 12, 20133 Milan Italy
| | - S. Destri
- Istituto per lo Studio delle Macromolecole (ISMAC), CNR; Via A. Corti 12, 20133 Milan Italy
| | - F. Samperi
- Istituto per i Polimeri; Compositi e Biomateriali (IPCB) Sede Secondaria di Catania, CNR; Via Gaifami 18, 95126 Catania Italy
| |
Collapse
|
8
|
Neal TJ, Beattie DL, Byard SJ, Smith GN, Murray MW, Williams NSJ, Emmett SN, Armes SP, Spain SG, Mykhaylyk OO. Self-Assembly of Amphiphilic Statistical Copolymers and Their Aqueous Rheological Properties. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02134] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Thomas J. Neal
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Deborah L. Beattie
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Sarah J. Byard
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Gregory N. Smith
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Martin W. Murray
- AkzoNobel Decorative
Paints, Wexham Road, Slough, Berkshire SL2 5DS, U.K
| | | | - Simon N. Emmett
- AkzoNobel Decorative
Paints, Wexham Road, Slough, Berkshire SL2 5DS, U.K
| | - Steven P. Armes
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Sebastian G. Spain
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| | - Oleksandr O. Mykhaylyk
- Department
of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, U.K
| |
Collapse
|
9
|
Self-assembling behavior and stimuli-responsive emulsifying performance of coumarin-containing amphiphilic terpolymer. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.09.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
10
|
Sundhoro M, Park J, Jayawardana KW, Chen X, Jayawardena HSN, Yan M. Poly(HEMA-co-HEMA-PFPA): Synthesis and preparation of stable micelles encapsulating imaging nanoparticles. J Colloid Interface Sci 2017; 500:1-8. [PMID: 28395159 DOI: 10.1016/j.jcis.2017.03.099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 11/28/2022]
Abstract
We report the preparation of stable micelles from random copolymers of 2-hydroxyethyl methacrylate (HEMA) and perfluorophenyl azide (PFPA)-derivatized HEMA (HEMA-PFPA). The copolymers were synthesized by RAFT polymerization at room temperature under mild conditions without affecting the azide functionality. Upon addition of water to the copolymer solution in DMSO, the random copolymers self-assembled into micelles even at the percentage of HEMA-PFPA as low as 4.5%. The size of the micelles can be controlled by the molecular weight and the concentration of the copolymer, and the percentage of HEMA-PFPA in the copolymer. In addition, iron oxide nanoparticles and quantum dots were successfully encapsulated into the micelles with high encapsulation efficiency (∼80%). These nanoparticles, which were hydrophobic and formed agglomerates in water, became fully dispersed after encapsulating into the micelles. The micelles were stable and the size remained unchanged for at least 6months.
Collapse
Affiliation(s)
- Madanodaya Sundhoro
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States
| | - Jaehyeung Park
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States
| | - Kalana W Jayawardana
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States
| | - Xuan Chen
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States
| | - H Surangi N Jayawardena
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, 1 University Ave, Lowell, MA 01854, United States; Department of Chemistry, KTH - Royal Institute of Technology, Teknikringen, 30, S-100 44 Stockholm, Sweden.
| |
Collapse
|
11
|
Pegg JC, Czajka A, Hill C, James C, Peach J, Rogers SE, Eastoe J. Alternative Route to Nanoscale Aggregates with a pH-Responsive Random Copolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2628-2638. [PMID: 28219244 DOI: 10.1021/acs.langmuir.6b04559] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A random copolymer, poly(methyl methacrylate-co-2-dimethylaminoethyl methacrylate) (poly(MMA-co-DMAEMA)) is shown to form nanoscale aggregates (NAs) (∼20 nm) at copolymer concentrations ≥10% w/w, directly from the preformed surfactant-stabilized latex (∼120 nm) in aqueous solution. The copolymer is prepared by conventional emulsion polymerization. Introducing a small mole fraction of DMAEMA (∼10%) allows the copolymer hydrophilicity to be adjusted by the pH and external temperature, generating NAs with tuneable sizes and a defined weight-average aggregation number, as observed by dynamic light scattering (DLS) and small-angle neutron scattering (SANS). These NAs are different from the so-called mesoglobular systems and are insensitive to temperature at fixed pH. The relatively broad chemical composition distribution of the copolymer and lumpy (or blocky but not diblock) incorporation of DMAEMA mean that the NAs cannot be simply thought of as conventional polymer micelles. In the acidic pH regime, the amphiphilic copolymer exhibits a defined critical assembly concentration (CAC) and a minimum air-water surface tension of 45.2 mN m-1. This copolymer represents a convenient route to self-assembled NAs, which form directly in aqueous dispersions after pH and temperature triggers, rather than the typically applied (and time-consuming) water-induced micellization approach for common polymer micelles.
Collapse
Affiliation(s)
- Jonathan C Pegg
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Adam Czajka
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Christopher Hill
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Craig James
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Jocelyn Peach
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Sarah E Rogers
- ISIS-STFC, Rutherford Appleton Laboratory, Chilton, Oxon OX11 0QX, U.K
| | - Julian Eastoe
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| |
Collapse
|
12
|
Zhang Z, Cai H, Liu Z, Yao P. Effective Enhancement of Hypoglycemic Effect of Insulin by Liver-Targeted Nanoparticles Containing Cholic Acid-Modified Chitosan Derivative. Mol Pharm 2016; 13:2433-42. [PMID: 27266268 DOI: 10.1021/acs.molpharmaceut.6b00188] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Liver is responsible for the balance of blood glucose level. In this study, cholic acid and N-(2-hydroxy)-propyl-3-trimethylammonium chloride modified chitosan (HTCC-CA) was used as a liver-targeted vehicle for insulin delivery. A novel approach was developed to effectively load insulin by mixing insulin and HTCC-CA in 50% ethanol and water mixed solvent at pH 2 and then dialysis against pH 7.4 phosphate buffer subsequently against water. The insulin-loaded HTCC-CA nanoparticles have an average diameter of 86 nm and insulin loading efficiency of 98.7%. Due to random distribution of the hydrophobic cholic acid groups in HTCC-CA, some of the cholic acid groups located on the nanoparticle surface. Compared with free insulin, the nanoparticles increased in vitro cellular uptake of insulin to 466%, and the nanoparticles accumulated in liver for more time after subcutaneous injection into mice. The therapy for diabetic rats displayed that the nanoparticles increased the pharmacological bioavailability of insulin to 475% relative to free insulin, and the nanoparticles could maintain the hypoglycemic effect for more than 24 h. This study demonstrates that the nanoparticles with cholic acid groups on their surface possess liver-targeted property and biocompatible insulin-loaded HTCC-CA nanoparticles can effectively enhance the hypoglycemic effect of insulin.
Collapse
Affiliation(s)
- Zhe Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Huanxin Cai
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Zhijia Liu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Ping Yao
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| |
Collapse
|
13
|
Weaver LG, Stockmann R, Postma A, Thang SH. Multi-responsive (diethylene glycol)methyl ether methacrylate (DEGMA)-based copolymer systems. RSC Adv 2016. [DOI: 10.1039/c6ra14425j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RAFT polymerisation was used to synthesise stimuli-responsive DEGMA-based copolymer systems, and their solution properties and aggregation behaviour were then studied.
Collapse
Affiliation(s)
| | | | | | - San H. Thang
- CSIRO Manufacturing
- Clayton South
- Australia
- Monash University
- School of Chemistry
| |
Collapse
|
14
|
Diaz C, Barrientos L, Carrillo D, Valdebenito J, Valenzuela ML, Allende P, Geaney H, O'Dwyer C. Solvent-less method for efficient photocatalytic α-Fe2O3 nanoparticles using macromolecular polymeric precursors. NEW J CHEM 2016. [DOI: 10.1039/c6nj00561f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient photocatalytic degradation of persistent cationic dye pollutants under visible light is possible with Fe2O3 nanoparticles formed by solvent-less synthesis using macromolecular precursor design.
Collapse
Affiliation(s)
- Carlos Diaz
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Lorena Barrientos
- Facultad de Química
- Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC
- Pontificia Universidad Católica de Chile
- Santiago de Chile
- Chile
| | - Daniel Carrillo
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Javier Valdebenito
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Maria L. Valenzuela
- Universidad Autonoma de Chile
- Institute of Applied Chemical Sciences
- Inorganic Chemistry and Molecular Materials Group
- Santiago
- Chile
| | - Patricio Allende
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago de Chile
- Chile
| | - Hugh Geaney
- Department of Chemistry
- University College Cork
- Cork
- Ireland
| | - Colm O'Dwyer
- Department of Chemistry
- University College Cork
- Cork
- Ireland
- Micro-Nano Systems Centre
| |
Collapse
|
15
|
Lauber L, Chassenieux C, Nicolai T, Colombani O. Highlighting the Role of the Random Associating Block in the Self-Assembly of Amphiphilic Block–Random Copolymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01626] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Lionel Lauber
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Christophe Chassenieux
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Taco Nicolai
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Olivier Colombani
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, av. O. Messiaen, 72085 Le Mans cedex 9, France
| |
Collapse
|
16
|
Pigaleva MA, Bulat MV, Bondarenko GN, Abramchuk SS, Laptinskaya TV, Gallyamov MO, Beletskaya IP, Möller M. Formation of Easy-to-Recover Polystyrene- block-Poly(4-vinylpyridine) Micelles Decorated with Pd Nanoparticles in Solutions of Self-Neutralizing Carbonic Acid. ACS Macro Lett 2015; 4:661-664. [PMID: 35596482 DOI: 10.1021/acsmacrolett.5b00281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It was found out that block copolymers of polystyrene and poly(4-vinylpyridine) with comparable lengths of blocks could be dissolved in a high-pressure reactor containing water phase saturated with carbon dioxide under high pressure at room temperature. This rather effective dissolution occurs due to a protonation of P4VP nitrogen-containing groups together with a plasticization of the polymer material to be dissolved by a compressed dense CO2 being contained in the autoclave. The selected block copolymers form rather monodispersed micelles with well-defined and reproducible spherical geometry. They apparently have a hydrophobic polystyrene core and a polycationic poly-4-vinylpyridine corona. The obtained micelles were characterized by various techniques such as DLS, AFM, TEM, and SEM. Further, it was revealed that the corona of such micelles could be decorated with Pd nanoparticles having the diameter around 3 nm.
Collapse
Affiliation(s)
| | | | | | - Sergey S. Abramchuk
- Nesmeyanov Institute
of Organoelement Compounds RAS, Moscow, Russian Federation
| | | | - Marat O. Gallyamov
- Nesmeyanov Institute
of Organoelement Compounds RAS, Moscow, Russian Federation
| | | | - Martin Möller
- DWI - Leibniz Institute for Interactive Materials, Aachen, Germany
| |
Collapse
|
17
|
Li S, Chen G, Zhou Z, Li Q. Stimuli-induced multiple dissociation and micellization transitions of random copolymers. RSC Adv 2015. [DOI: 10.1039/c5ra07158e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Upon UV irradiation, random copolymer P(NBMA-co-MEO2MA-co-OEGMA) was converted into P(MAA-co-MEO2MA-co-OEGMA) with disruption of the initial micelles. Further increasing the temperature or decreasing the pH induced the reformation of micelles.
Collapse
Affiliation(s)
- Shasha Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Guangxin Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Zheng Zhou
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Qifang Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Key Laboratory of Carbon Fiber and Functional Polymers
| |
Collapse
|
18
|
Preparation and characterization of pH-sensitive polyethersulfone hollow fiber membranes modified by poly(methyl methylacrylate-co-4-vinyl pyridine) copolymer. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.08.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
19
|
Kaushlendra K, Asha SK. Microstructural reorganization and cargo release in pyrene urethane methacrylate random copolymer hollow capsules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12731-12743. [PMID: 22839750 DOI: 10.1021/la302283q] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the synthesis of polymer microcapsules by direct one-pot free radical random copolymerization approach. Urethane methacrylate comb monomers having pendant pyrene (Py) and 3-pentadecyl phenol (PDP) units were copolymerized in a random manner using benzoyl peroxide (BPO) as free radical initiator in dimethylformamide (DMF) as solvent. These copolymers and corresponding homopolymers spontaneously self-organized into microspheres upon drop casting from solvents like DMF and tetrahydrofuran (THF). Stable microspheres were obtained in water by dialyzing THF solution of the polymers against water in dialysis bags with molecular weight cutoff of ∼2000. The hollow nature of the spheres was confirmed by rhodamine B (RhB) encapsulation followed by Förster resonance energy transfer (FRET) based fluorescence emission from RhB upon exciting pyrene. The microenvironment inside the capsule was probed by following the I(1)/I(3) ratio of pyrene emission as well as RhB release as a function of temperature. The RhB encapsulated in the pyrene homopolymer PIHP-100Py capsules experienced strong donor-acceptor interaction and did not undergo complete release even at high temperature (85 °C). The encapsulated RhB from the copolymers with low pyrene incorporation was released almost fully upon heating beyond 50 °C. Pyrene moieties in the PIHP-100Py were shielded from surrounding water and experienced a hydrophobic environment, whereas in the low pyrene incorporated copolymer the PDP units were better shielded from the hydrophilic environment. This work represents a simple approach to produce polymer hollow capsules, and the varying pyrene incorporation was used to trace the microenvironment inside the capsules.
Collapse
Affiliation(s)
- K Kaushlendra
- Polymer & Advanced Material Laboratory, Polymer Science & Engineering Division, CSIR, NCL, Pune-411008, Maharashtra, India
| | | |
Collapse
|
20
|
Sakai F, Chen G, Jiang M. A new story of cyclodextrin as a bulky pendent group causing uncommon behaviour to random copolymers in solution. Polym Chem 2012. [DOI: 10.1039/c2py00614f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
21
|
|
22
|
Fang Y, Pang PP, Lai ZY. pH-Responsive Self-assembly of Partially Hydrolyzed Polyacrylamide in Aqueous Solution. CHEM LETT 2011. [DOI: 10.1246/cl.2011.1074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
23
|
Li C, Ge X, Liu S, Li G, Zhang A, Bai J, Su C, Ding R. Redispersible dried hydroxyapatite particles with grafted pH-sensitivity polymer brushes of poly(styrene-co-4-vinylpyridine). POWDER TECHNOL 2011. [DOI: 10.1016/j.powtec.2011.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
24
|
Wu Z, Zhang S, Zhang X, Shu S, Chu T, Yu D. Phenylboronic Acid Grafted Chitosan as a Glucose-Sensitive Vehicle for Controlled Insulin Release. J Pharm Sci 2011; 100:2278-86. [DOI: 10.1002/jps.22463] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 11/12/2010] [Accepted: 12/02/2010] [Indexed: 11/10/2022]
|
25
|
Binding of thermo-sensitive and pH-sensitive butylated poly(allylamine)s with lysozyme. CHINESE JOURNAL OF POLYMER SCIENCE 2011. [DOI: 10.1007/s10118-011-1054-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
26
|
Ma L, Kang H, Liu R, Huang Y. Smart assembly behaviors of hydroxypropylcellulose-graft-poly(4-vinyl pyridine) copolymers in aqueous solution by thermo and pH stimuli. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:18519-18525. [PMID: 21058690 DOI: 10.1021/la103854b] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Thermo- and pH-sensitive graft copolymers, hydroxypropylcellulose-graft-poly(4-vinyl pyridine) (HPC-g-P4VP), were synthesized via atom transfer radical polymerization (ATRP) and characterized. The thermo- and pH-induced micellization and stimuli-responsive properties of HPC-g-P4VP graft copolymers in aqueous solution were investigated by transmittance, (1)H NMR, dynamic light scattering (DLS), and so on. For the pH-induced micellization, the P4VP side chains collapse to form the core of the micelles, and the HPC backbones stay in the shell to stabilize the micelles. In the case of thermoinduced micellization, the HPC backbones collapse to form the core of the micelles that was stabilized by the P4VP side chains in the shell upon heating. What's more, the cloud point of the HPC-g-P4VP copolymers in the aqueous solution could be finely tuned by changing the length of P4VP side chains or the pH values. In acidic water, the longer the side chains, the higher the cloud point. For those HPC-g-P4VP copolymers with short side chains, for example, HPC0.05-g-P4VP(3), the lower pH correlates a higher cloud point. The thermo- or pH-induced micelles also have the pH- or thermosensitivity due to their P4VP or HPC shells.
Collapse
Affiliation(s)
- Lin Ma
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | | | | | | |
Collapse
|