1
|
Zhang Y, Liu Q, Lu Q, Yang ZZ, Gao S, Zhang X. The preparation and dual-mode detection of ascorbic acid based on poly( N-isopropylacrylamide) nanogel with oxidase-like activity. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4255-4261. [PMID: 38910452 DOI: 10.1039/d4ay00638k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Nanozymes have recently become a research hotspot because of the advantages of good stability, excellent catalytic performance and easy storage in comparison to natural enzymes. Nanozymes with oxidase-like activity get special attention because they needn't the participation of hydrogen peroxide. In this paper, poly(N-isopropylacrylamide) nanogel with oxidase-like activity was synthesized for the first time. The catalytic mechanism was explored by EPR and UV spectroscopy after adding specific trapping agents of ROS, and the results showed that PNIPAM NG can catalyze O2 to 1O2. In the presence of PNIPAM NG, o-phenylenediamine (OPD) and ascorbic acid (AA) can be oxidized to 2,3-diaminophenazine (oxOPD) and dehydroascorbic acid (DHA), and DHA can further react with OPD to produce a fluorescence substance. The colorimetric and fluorescence detection platforms for AA were constructed based on the above principles. Both platforms have satisfactory results in real samples. The fluorescence platform has better sensitivity and selectivity than the colorimetric platform.
Collapse
Affiliation(s)
- Yuhan Zhang
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| | - Qinze Liu
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| | - Qian Lu
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| | - Zhi-Zhou Yang
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| | - Sheng Gao
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| | - Xian Zhang
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China.
| |
Collapse
|
2
|
Zhang Y, Li X, Wu Y, Tang X, Lu X. Preparation and properties of hydrogel photonic crystals assembled by biodegradable nanogels. J Colloid Interface Sci 2024; 663:554-565. [PMID: 38428113 DOI: 10.1016/j.jcis.2024.02.185] [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: 01/24/2024] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
Thermally induced physical hydrogels formed through the sol-gel transition of nanogels usually lose structural color above phase transition temperature (Tp). Herein, temperature/pH/redox-responsive nanogels that undergo sol-gel transition still keep structural colors above the Tp have been synthesized and studied. N-isopropylacrylamide (NIPAm) was copolymerized with N-tert-butylacrylamide (TBA) and N-acrylamido-l-phenylalanine (Aphe) to form P(NIPAm/TBA/Aphe) nanogel crosslinked with N,N'-bis(acryloyl)cystine (BISS) (referred to as PNTA-BISS). PNTA-BISS nanogel with a broad range of biodegradable crosslinker BISS content can achieve a reversible sol-gel transition above the Tp, surprisingly, while PNTA nanogels with a comparable content of biodegradable N,N'-Bis(acryloyl)cystam (BAC) crosslinker (referred to as PNTA-BAC) didn't form sol-gel transition. Although BISS and BAC possess same disulfide bonds with redox properties, BISS, unlike BAC, is water-soluble and features two carboxyl groups. The mechanism by which PNTA-BISS nanogels form hydrogel photonic crystals has been deeply explored with temperature-variable NMR. The results showed the introduction of Aphe with both steric hindrance and carboxyl groups greatly slowed down the shrinkage of PNTA-BISS nanogels. Therefore, PNTA-BISS nanogels can form sol-gel transition and further structural color of hydrogel photonic crystals due to carboxyl groups above the Tp. Furthermore, the properties of biodegradable hydrogel photonic crystals above the Tp were investigated for the first time, attributed to the presence of the strong reducing agent 1,4-dithiothreitol (DTT). When loaded with doxorubicin (DOX), PNTA-BISS exhibited favorable degradation properties under the influence of DTT. In summary, the PNTA-BISS nanogel, in addition to its in-situ gelation capabilities, demonstrated degradability, potentially providing a novel nanoplatform for applications in drug delivery, biotechnology, and related fields.
Collapse
Affiliation(s)
- Yan Zhang
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xueting Li
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China; Fujian Nano-Micro Advanced Materials Sci. & Tech. Co. Ltd., Jinjiang Innovation Entrepreneurship and Creativity Park, Jinjiang, Fujian 362200, China; Shanghai Evanston Advanced Materials Sci. & Tech. Co. Ltd., Yangpu, Shanghai 244000, China
| | - Youtong Wu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Xiaoliang Tang
- College of Science, Donghua University, Shanghai 201620, China
| | - Xihua Lu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China; Fujian Nano-Micro Advanced Materials Sci. & Tech. Co. Ltd., Jinjiang Innovation Entrepreneurship and Creativity Park, Jinjiang, Fujian 362200, China; Shanghai Evanston Advanced Materials Sci. & Tech. Co. Ltd., Yangpu, Shanghai 244000, China.
| |
Collapse
|
3
|
Zhang Q, Huang S, Liu X, Wang W, Zhu Z, Chen L. Innovations in Breaking Barriers: Liposomes as Near-Perfect Drug Carriers in Ischemic Stroke Therapy. Int J Nanomedicine 2024; 19:3715-3735. [PMID: 38681090 PMCID: PMC11046314 DOI: 10.2147/ijn.s462194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/13/2024] [Indexed: 05/01/2024] Open
Abstract
Liposomes, noted for their tunable particle size, surface customization, and varied drug delivery capacities, are increasingly acknowledged in therapeutic applications. These vesicles exhibit surface flexibility, enabling the incorporation of targeting moieties or peptides to achieve specific targeting and avoid lysosomal entrapment. Internally, their adaptable architecture permits the inclusion of a broad spectrum of drugs, contingent on their solubility characteristics. This study thoroughly reviews liposome fabrication, surface modifications, and drug release mechanisms post-systemic administration, with a particular emphasis on drugs crossing the blood-brain barrier (BBB) to address lesions. Additionally, the review delves into recent developments in the use of liposomes in ischemic stroke models, offering a comparative evaluation with other nanocarriers like exosomes and nano-micelles, thereby facilitating their clinical advancement.
Collapse
Affiliation(s)
- Qiankun Zhang
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Songze Huang
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Xiaowen Liu
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Wei Wang
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Zhihan Zhu
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Lukui Chen
- Department of Neurosurgery, Southern Medical University Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, People’s Republic of China
| |
Collapse
|
4
|
Nayak BP, Kim HJ, Nayak S, Wang W, Bu W, Mallapragada SK, Vaknin D. Assembling PNIPAM-Capped Gold Nanoparticles in Aqueous Solutions. ACS Macro Lett 2023; 12:1659-1664. [PMID: 37991797 DOI: 10.1021/acsmacrolett.3c00617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Employing small-angle X-ray scattering (SAXS), we explore the conditions under which assembly of gold nanoparticles (AuNPs) grafted with the thermosensitive polymer poly(N-isopropylacrylamide) (PNIPAM) emerges. We find that short-range order assembly emerges by combining the addition of electrolytes or polyelectrolytes with raising the temperature of the suspensions above the lower-critical solution temperature (LCST) of PNIPAM. Our results show that the longer the PNIPAM chain is, the better organization in the assembled clusters. Interestingly, without added electrolytes, there is no evidence of AuNPs assembly as a function of temperature, although untethered PNIPAM is known to undergo a coil-to-globule transition above its LCST. This study demonstrates another approach to assembling potential thermosensitive nanostructures for devices by leveraging the unique properties of PNIPAM.
Collapse
Affiliation(s)
- Binay P Nayak
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Hyeong Jin Kim
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Srikanth Nayak
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Wenjie Wang
- Division of Materials Sciences and Engineering, Ames National Laboratory, U.S. DOE, Ames, Iowa 50011, United States
| | - Wei Bu
- NSFs ChemMatCARS, Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Surya K Mallapragada
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - David Vaknin
- Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| |
Collapse
|
5
|
Li X, Li X, Xia T, Chen W, Shea KJ, Lu X. Remarkable sol-gel transition of PNIPAm-based nanogels via large steric hindrance of side-chains. MATERIALS HORIZONS 2023; 10:4452-4462. [PMID: 37503733 DOI: 10.1039/d3mh00892d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
While the block/graft/branched structures are widely studied to favor the reversible physical gelation, there are no reports regarding the steric hindrance-induced sol-gel transition of PNIPAm-based nanogels above their phase transition temperature (Tp). Generally, the introduction of hydrophobic components into poly (N-isopropylacrylamide) (PNIPAm)-based nanogels only led to collapse and lower viscosity instead of the sol-gel transition upon heating above the Tp. Herein, the results of temperature-variable 1HNMR and FTIR confirm that the introduction of hydrophobic N-tert-butylacrylamide (TBA) with the large steric hindrance of side groups of N-tert-butyl to form NIPAm/TBA copolymer nanogels can dramatically slow down the dehydration of all the hydrophobic alkyl groups, thus resulting in the formation of thermally induced sol-gel transition above the Tp. Furthermore, the N-acrylamido-L-phenylalanine (APhe) monomer composed of a strongly water absorbing carboxyl group and a phenyl group with larger steric hindrance is studied to form P(NIPAm/TBA/APhe) terpolymer nanogels which can self-assemble into colorful colloidal crystals. Surprisingly, owing to the synergistic effect between the water absorbing carboxyl group and the steric hindrance group on the same side group, these colloidal crystals can achieve sol-gel transition above Tp, forming a physically crosslinked colorful hydrogel. This work is expected to greatly advance the design, synthesis, and application of the sol-gel transition of PNIPAm-based nanogel systems.
Collapse
Affiliation(s)
- Xiaoxiao Li
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, People's Republic of China.
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Xueting Li
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, People's Republic of China.
- Fujian Nano-Micro Advanced Materials Sci. & Tech. Co. Ltd., Three Creation Park, Jinjiang, Fujian 362200, People's Republic of China
- Anhui Microdelivery Smart Microcapsule Sci. & Tech. Co. Ltd., Tongling, Anhui 244000, People's Republic of China
| | - Tingting Xia
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, People's Republic of China.
| | - Wei Chen
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, People's Republic of China.
| | - Kenneth J Shea
- Department of Chemistry, University of California, Irvine, California 92697, USA
| | - Xihua Lu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, People's Republic of China.
- Fujian Nano-Micro Advanced Materials Sci. & Tech. Co. Ltd., Three Creation Park, Jinjiang, Fujian 362200, People's Republic of China
- Anhui Microdelivery Smart Microcapsule Sci. & Tech. Co. Ltd., Tongling, Anhui 244000, People's Republic of China
| |
Collapse
|
6
|
Aguilar NM, Perez-Aguilar JM, González-Coronel VJ, Martínez-Gutiérrez H, Zayas Pérez T, González-Vergara E, Sanchez-Gaytan BL, Soriano-Moro G. Reversible Thermo-Optical Response Nanocomposites Based on RAFT Symmetric Triblock Copolymers (ABA) of Acrylamide and N-Isopropylacrylamide and Gold Nanoparticles. Polymers (Basel) 2023; 15:polym15081963. [PMID: 37112110 PMCID: PMC10144036 DOI: 10.3390/polym15081963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/02/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
The development of composite materials with thermo-optical properties based on smart polymeric systems and nanostructures have been extensively studied. Due to the fact of its ability to self-assemble into a structure that generates a significant change in the refractive index, one of most attractive thermo-responsive polymers is poly(N-isopropylacrylamide) (PNIPAM), as well as its derivatives such as multiblock copolymers. In this work, symmetric triblock copolymers of polyacrylamide (PAM) and PNIPAM (PAMx-b-PNIPAMy-b-PAMx) with different block lengths were prepared by reversible addition-fragmentation chain-transfer polymerization (RAFT). The ABA sequence of these triblock copolymers was obtained in only two steps using a symmetrical trithiocarbonate as a transfer agent. The copolymers were combined with gold nanoparticles (AuNPs) to prepare nanocomposite materials with tunable optical properties. The results show that copolymers behave differently in solution due to the fact of variations in their composition. Therefore, they have a different impact on the nanoparticle formation process. Likewise, as expected, an increase in the length of the PNIPAM block promotes a better thermo-optical response.
Collapse
Affiliation(s)
- Nery M Aguilar
- Chemistry Center, Science Institute, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Jose Manuel Perez-Aguilar
- School of Chemical Sciences, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Valeria J González-Coronel
- School of Chemical Engineering, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Hugo Martínez-Gutiérrez
- National Polytechnic Institute (IPN), Center for Nanosciences and Micro and Nanotechnologies, Luis Enrique Erro, Mexico City 07738, Mexico
| | - Teresa Zayas Pérez
- Chemistry Center, Science Institute, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Enrique González-Vergara
- Chemistry Center, Science Institute, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Brenda L Sanchez-Gaytan
- Chemistry Center, Science Institute, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| | - Guillermo Soriano-Moro
- Chemistry Center, Science Institute, Meritorious Autonomous University of Puebla (BUAP), University City, Puebla 72570, Mexico
| |
Collapse
|
7
|
Prause A, Hechenbichler M, Schmidt RF, Simon M, Prévost S, Cavalcanti LP, Talmon Y, Laschewsky A, Gradzielski M. Rheological Control of Aqueous Dispersions by Thermoresponsive BAB* Copolymers of Different Architectures. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Albert Prause
- FG Physical Chemistry/Molecular Material Science, Technische Universität Berlin, Straße des 17. Juni 135, Berlin10623, Germany
| | - Michelle Hechenbichler
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Straße 24−25, Potsdam14476, Germany
| | - Robert F. Schmidt
- FG Physical Chemistry/Molecular Material Science, Technische Universität Berlin, Straße des 17. Juni 135, Berlin10623, Germany
| | - Miriam Simon
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa3200003, Israel
| | - Sylvain Prévost
- Institut Laue−Langevin, DS/LSS, 71 Avenue des Martyrs, CS 20 156, Grenoble Cedex 9F-38042, France
| | - Leide P. Cavalcanti
- ISIS Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, DidcotOX11 0QX, UK
| | - Yeshayahu Talmon
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa3200003, Israel
| | - André Laschewsky
- Department of Chemistry, Universität Potsdam, Karl-Liebknecht-Straße 24−25, Potsdam14476, Germany
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselbergstraße 69, Potsdam14476, Germany
| | - Michael Gradzielski
- FG Physical Chemistry/Molecular Material Science, Technische Universität Berlin, Straße des 17. Juni 135, Berlin10623, Germany
| |
Collapse
|
8
|
Pickett PD, Ma Y, Lueckheide M, Mao Y, Prabhu VM. Temperature dependent single-chain structure of poly[3-(acrylamidopropyl-dimethyl-ammonium) propyl-1-sulfonate] via small-angle neutron scattering. J Chem Phys 2022; 156:214904. [DOI: 10.1063/5.0093158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Responsive polyzwitterionic materials have become important for a range of applications such as environmental remediation and targeted drug delivery. Much is known about the macroscopic phase-behaviors of such materials, but how the smaller scale single-chain structures of polyzwitterions respond to external stimuli is not well understood, especially at temperatures close to their phase boundaries. Such chain conformation responses are important in directing larger-scale associative properties. Here, we study the temperature dependent single-chain structure of a model polysulfobetaine, poly[3-(acrylamidopropyl-dimethyl-ammonium) propyl-1-sulfonate], using small angle neutron scattering. In the absence of salt, we find that temperature has a large effect on solvent quality with a decreasing trend from good solvent conditions at 50 °C to poor solvent at 10 °C (a temperature just above the cloud point of 7.6 °C) and an estimated theta temperature of 39 °C. When 100 mM NaCl is present, the solvent quality is good with weak temperature dependence. Without salt present, the polymer chain appears to have a nearly Gaussian coil conformation and the backbone becomes slightly more rigid as the temperature is lowered to the cloud point as determined by the Debye-local rod model on a Kratky plot. The addition of salt has a notable effect on the intra-chain correlations where an increase in chain dimensions to a swollen coil conformation and an increase in chain rigidity is observed at 100 mM NaCl in D2O, however, with a negligible temperature dependence.
Collapse
Affiliation(s)
- Phillip D. Pickett
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| | - Yuanchi Ma
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| | - Michael Lueckheide
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| | - Yimin Mao
- Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115, USA
| | - Vivek M. Prabhu
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| |
Collapse
|
9
|
Castellvi Corrons X, Gummel J, Smets J, Berti D. Liquid-liquid phase separated microdomains of an amphiphilic graft copolymer in a surfactant-rich medium. J Colloid Interface Sci 2022; 615:807-820. [PMID: 35180629 DOI: 10.1016/j.jcis.2022.02.020] [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: 12/16/2021] [Revised: 01/29/2022] [Accepted: 02/06/2022] [Indexed: 11/28/2022]
Abstract
The liquid-liquid phase separation (LLPS) of amphiphilic thermoresponsive copolymers can lead to the formation of micron-sized domains, known as simple coacervates. Due to their potential to confine active principles, these copolymer-rich droplets have gained interest as encapsulating agents. Understanding and controlling the conditions inducing this LLPS is therefore essential for applicative purposes and requires thorough fundamental studies on self-coacervation. In this work, we investigate the LLPS of a comb-like graft copolymer (PEG-g-PVAc) consisting of a poly(ethylene glycol) backbone (6 kDa) with ∼2-3 grafted poly(vinyl acetate) chains, and a PEG/PVAc weight ratio of 40/60. Specifically, we report the effect of various water-soluble additives on its phase separation behavior. Kosmotropes and non-ionic surfactants were found to decrease the phase separation temperature of the copolymer, while chaotropes and, above all, ionic surfactants increased it. We then focus on the phase behavior of PEG-g-PVAc in the presence of sodium citrate and a C14-15 E7 non-ionic surfactant (N45-7), defining the compositional range for the generation of LLPS microdomains at room temperature and monitoring their formation with fluorescence confocal microscopy. Finally, we determine the composition of the microdomains through confocal Raman microscopy, demonstrating the presence of PEG-g-PVAc, N45-7, and water. These results expand our knowledge on polymeric self-coacervation, clarifying the optimal conditions and composition needed to obtain LLPS microdomains with encapsulation potential at room temperature in surfactant-rich formulations.
Collapse
Affiliation(s)
- Xavier Castellvi Corrons
- Department of Chemistry "Ugo Schiff" University of Florence, CSGI, Via della Lastruccia 3, 50019 Sesto Fiorentino Florence, Italy
| | - Jeremie Gummel
- Strategic Innovation and Technology, Procter & Gamble Brussels Innovation Center, Temselaan 100, 1853 Grimbergen, Belgium
| | - Johan Smets
- Strategic Innovation and Technology, Procter & Gamble Brussels Innovation Center, Temselaan 100, 1853 Grimbergen, Belgium
| | - Debora Berti
- Department of Chemistry "Ugo Schiff" University of Florence, CSGI, Via della Lastruccia 3, 50019 Sesto Fiorentino Florence, Italy
| |
Collapse
|
10
|
Association Behavior of Amphiphilic ABA Triblock Copolymer Composed of Poly(2-methoxyethyl acrylate) (A) and Poly(ethylene oxide) (B) in Aqueous Solution. Polymers (Basel) 2022; 14:polym14091678. [PMID: 35566848 PMCID: PMC9105209 DOI: 10.3390/polym14091678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 01/27/2023] Open
Abstract
Poly(2-methoxyethyl acrylate) (PMEA) and poly(ethylene oxide) (PEO) have protein-antifouling properties and blood compatibility. ABA triblock copolymers (PMEAl-PEO11340-PMEAm (MEOMn; n is average value of l and m)) were prepared using single-electron transfer-living radical polymerization (SET-LRP) using a bifunctional PEO macroinitiator. Two types of MEOMn composed of PMEA blocks with degrees of polymerization (DP = n) of 85 and 777 were prepared using the same PEO macroinitiator. MEOMn formed flower micelles with a hydrophobic PMEA (A) core and hydrophilic PEO (B) loop shells in diluted water with a similar appearance to petals. The hydrodynamic radii of MEOM85 and MEOM777 were 151 and 108 nm, respectively. The PMEA block with a large DP formed a tightly packed core. The aggregation number (Nagg) of the PMEA block in a single flower micelle for MEOM85 and MEOM777 was 156 and 164, respectively, which were estimated using a light scattering technique. The critical micelle concentrations (CMCs) for MEOM85 and MEOM777 were 0.01 and 0.002 g/L, respectively, as determined by the light scattering intensity and fluorescence probe techniques. The size, Nagg, and CMC for MEOM85 and MEOM777 were almost the same independent of hydrophobic DP of the PMEA block.
Collapse
|
11
|
Fussell SL, King SM, Royall CP, van Duijneveldt JS. Oxidative degradation of triblock-copolymer surfactant and its effects on self-assembly. J Colloid Interface Sci 2022; 606:953-960. [PMID: 34487942 DOI: 10.1016/j.jcis.2021.08.045] [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: 03/26/2021] [Revised: 08/04/2021] [Accepted: 08/07/2021] [Indexed: 11/16/2022]
Abstract
We investigate the degradation behaviour of a triblock-copolymer surfactant made from polyethylene oxide (PEO) and polypropylene oxide (PPO) (PEO-PPO-PEO), highlighting how the aggregation behaviour of this polymer in water alters with ageing. Samples aged at room temperature were compared to samples degraded using accelerated ageing at elevated temperatures. We find that large mass losses occurred to the polymer surfactant which resulted in a change in the aggregation behaviour, with larger, rod-like or planar aggregates forming at longer degradation times. We look at how this change in aggregation behaviour changes the formulation stability of these polymers, specifically, the interaction of the polymer surfactant with poly(N-isopropylacrylamide) microgels. It is known that these species associate and form gels at elevated temperatures. This paper highlights how commonly used polymeric surfactants can degrade over time, resulting in dramatic changes to aggregation behaviour and therefore, formulation properties.
Collapse
Affiliation(s)
- S L Fussell
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK; HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK; Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.
| | - S M King
- ISIS Pulsed Neutron & Muon Source, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxon OX11 0QX, UK
| | - C P Royall
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK; HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK; Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK; Gulliver UMR CNRS 7083, ESPCI Paris, Université PSL, 75005 Paris, France
| | - J S van Duijneveldt
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
| |
Collapse
|
12
|
Length-scale dependence of pH- and temperature-response of PDMAEMA-b-PHPMA block copolymer self-assemblies in aqueous solutions. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
13
|
Haddow PJ, da Silva MA, Kaldybekov DB, Dreiss CA, Hoffman E, Hutter V, Khutoryanskiy VV, Kirton SB, Mahmoudi N, McAuley WJ, Cook MT. Polymer Architecture Effects on Poly(N,N-Diethyl Acrylamide)-b-Poly(Ethylene Glycol)-b-Poly(N,N-Diethyl Acrylamide) Thermoreversible Gels and Their Evaluation as a Healthcare Material. Macromol Biosci 2021; 22:e2100432. [PMID: 34859566 DOI: 10.1002/mabi.202100432] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/25/2021] [Indexed: 10/19/2022]
Abstract
Thermoreversible gels which transition between liquid-like and solid-like states when warmed have enabled significant novel healthcare technologies. Poly(N,N-diethyl acrylamide) (PDEA) is a thermoresponsive polymer which can be used as a trigger to form thermoreversible gels, however its use in these materials is limited and crucial design principles are unknown. Herein ABA copolymers with the structure PDEA-b-poly(ethylene glycol) (PEG)-b-PDEA are synthesized to give four block copolymers with varied molecular weight of PDEA and PEG blocks. Rheometry on solutions of the block copolymers reveals that high molecular weight PEG blocks are required to form thermoreversible gels with predominantly solid-like behavior. Furthermore, small-angle X-ray scattering elucidates clear differences in the nanostructure of the copolymer library which can be linked to distinct rheological behaviors. A thermoreversible gel formulation based on PDEA (20 kDa)-b-PEG (10 kDa)-b-PDEA (20 kDa) is designed by optimizing the polymer concentration and ionic strength. It is found that the gel is mucoadhesive, stable, and non-toxic, as well as giving controlled release of a hydrophobic drug. Overall, this study provides insight into the effect of polymer architecture on the nanostructure and rheology of PDEA-b-PEG-b-PDEA and presents the development of a highly functional thermoreversible gel with high promise for healthcare applications.
Collapse
Affiliation(s)
- Peter J Haddow
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Marcelo A da Silva
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Daulet B Kaldybekov
- School of Chemistry, Food and Pharmacy, University of Reading, Reading, Berkshire, RG6 6UR, UK.,Department of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
| | - Cecile A Dreiss
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London, SE1 9NH, UK
| | - Ewelina Hoffman
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Victoria Hutter
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Vitaliy V Khutoryanskiy
- School of Chemistry, Food and Pharmacy, University of Reading, Reading, Berkshire, RG6 6UR, UK.,Department of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
| | - Stewart B Kirton
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Najet Mahmoudi
- ISIS Neutron and Muon Source, STFC, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - William J McAuley
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| | - Michael T Cook
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Hertfordshire, AL10 9AB, UK
| |
Collapse
|
14
|
Filippov SK, Khusnutdinov RR, Inham W, Liu C, Nikitin DO, Semina II, Garvey CJ, Nasibullin SF, Khutoryanskiy VV, Zhang H, Moustafine RI. Hybrid Nanoparticles for Haloperidol Encapsulation: Quid Est Optimum? Polymers (Basel) 2021; 13:4189. [PMID: 34883693 PMCID: PMC8659838 DOI: 10.3390/polym13234189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 12/12/2022] Open
Abstract
The choice of drug delivery carrier is of paramount importance for the fate of a drug in a human body. In this study, we have prepared the hybrid nanoparticles composed of FDA-approved Eudragit L100-55 copolymer and polymeric surfactant Brij98 to load haloperidol-an antipsychotic hydrophobic drug used to treat schizophrenia and many other disorders. This platform shows good drug-loading efficiency and stability in comparison to the widely applied platforms of mesoporous silica (MSN) and a metal-organic framework (MOF). ZIF8, a biocompatible MOF, failed to encapsulate haloperidol, whereas MSN only showed limited encapsulation ability. Isothermal titration calorimetry showed that haloperidol has low binding with the surface of ZIF8 and MSN in comparison to Eudragit L100-55/Brij98, thus elucidating the striking difference in haloperidol loading. With further optimization, the haloperidol loading efficiency could reach up to 40% in the hybrid Eudragit L100-55/Brij98 nanoparticles with high stability over several months. Differential scanning calorimetry studies indicate that the encapsulated haloperidol stays in an amorphous state inside the Eudragit L100-55/Brij98 nanoparticles. Using a catalepsy and open field animal tests, we proved the prolongation of haloperidol release in vivo, resulting in later onset of action compared to the free drug.
Collapse
Affiliation(s)
- Sergey K. Filippov
- Pharmaceutical Sciences Laboratory and Turku Bioscience Center, Åbo Akademi University, 20520 Turku, Finland; (W.I.); (C.L.); (H.Z.)
- Turku Bioscience Center, University of Turku, 20520 Turku, Finland
- School of Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, UK;
| | - Ramil R. Khusnutdinov
- Institute of Pharmacy, Kazan State Medical University, 16 Fatykh Amirkhan, 420126 Kazan, Russia; (R.R.K.); (S.F.N.)
| | - Wali Inham
- Pharmaceutical Sciences Laboratory and Turku Bioscience Center, Åbo Akademi University, 20520 Turku, Finland; (W.I.); (C.L.); (H.Z.)
- Turku Bioscience Center, University of Turku, 20520 Turku, Finland
| | - Chang Liu
- Pharmaceutical Sciences Laboratory and Turku Bioscience Center, Åbo Akademi University, 20520 Turku, Finland; (W.I.); (C.L.); (H.Z.)
- Turku Bioscience Center, University of Turku, 20520 Turku, Finland
| | - Dmitry O. Nikitin
- Department of Pharmacology, Kazan State Medical University, 49 Butlerov str., 420012 Kazan, Russia; (D.O.N.); (I.I.S.)
| | - Irina I. Semina
- Department of Pharmacology, Kazan State Medical University, 49 Butlerov str., 420012 Kazan, Russia; (D.O.N.); (I.I.S.)
| | - Christopher J. Garvey
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße 1, 85748 Garching, Germany;
| | - Shamil F. Nasibullin
- Institute of Pharmacy, Kazan State Medical University, 16 Fatykh Amirkhan, 420126 Kazan, Russia; (R.R.K.); (S.F.N.)
| | | | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory and Turku Bioscience Center, Åbo Akademi University, 20520 Turku, Finland; (W.I.); (C.L.); (H.Z.)
- Turku Bioscience Center, University of Turku, 20520 Turku, Finland
| | - Rouslan I. Moustafine
- Institute of Pharmacy, Kazan State Medical University, 16 Fatykh Amirkhan, 420126 Kazan, Russia; (R.R.K.); (S.F.N.)
| |
Collapse
|
15
|
Polo Fonseca L, Felisberti MI. Thermo- and UV-responsive amphiphilic nanogels via reversible [4+4] photocycloaddition of PEG/PCL-based polyurethane dispersions. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
16
|
Vagias A, Papagiannopoulos A, Kreuzer LP, Giaouzi D, Busch S, Pispas S, Müller-Buschbaum P. Effects of Polymer Block Length Asymmetry and Temperature on the Nanoscale Morphology of Thermoresponsive Double Hydrophilic Block Copolymers in Aqueous Solutions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Apostolos Vagias
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Aristeidis Papagiannopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Lucas P. Kreuzer
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Despoina Giaouzi
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Sebastian Busch
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Peter Müller-Buschbaum
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| |
Collapse
|
17
|
Constantinou AP, Zhang K, Somuncuoğlu B, Feng B, Georgiou TK. PEG-Based Methacrylate Tetrablock Terpolymers: How Does the Architecture Control the Gelation? Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna P. Constantinou
- Department of Materials, Royal School of Mines, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
| | - Kaiwen Zhang
- Department of Materials, Royal School of Mines, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
| | - Birsen Somuncuoğlu
- Department of Materials, Royal School of Mines, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
| | - Bailin Feng
- Department of Materials, Royal School of Mines, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
| | - Theoni K. Georgiou
- Department of Materials, Royal School of Mines, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
| |
Collapse
|
18
|
Gao Y, Deng A, Wu X, Sun C, Qi C. Injectable multi-responsive hydrogels cross-linked by responsive macromolecular micelles. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
19
|
Constantinou AP, Zhan B, Georgiou TK. Tuning the Gelation of Thermoresponsive Gels Based on Triblock Terpolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02533] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anna P. Constantinou
- Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, SW7 2AZ London, U.K
| | - Beini Zhan
- Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, SW7 2AZ London, U.K
| | - Theoni K. Georgiou
- Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, SW7 2AZ London, U.K
| |
Collapse
|
20
|
Damsongsang P, Hoven VP, Yusa SI. Core-functionalized nanoaggregates: preparation via polymerization-induced self-assembly and their applications. NEW J CHEM 2021. [DOI: 10.1039/d1nj01791h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Core-functionalized nanoaggregates can be prepared by a combination of polymerization-induced self-assembly (PISA) and post-polymerization modification.
Collapse
Affiliation(s)
- Panittha Damsongsang
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok 10330
- Thailand
| | - Voravee P. Hoven
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok 10330
- Thailand
| | - Shin-ichi Yusa
- Department of Applied Chemistry
- Graduate School of Engineering
- University of Hyogo
- Himeji
- Japan
| |
Collapse
|
21
|
Du G, Del Giudice A, Alfredsson V, Carnerup AM, Pavel NV, Loh W, Masci G, Nyström B, Galantini L, Schillén K. Effect of temperature on the association behavior in aqueous mixtures of an oppositely charged amphiphilic block copolymer and bile salt. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
22
|
Pickett PD, Orski SV, Prabhu VM. Development of aqueous size exclusion chromatography conditions to characterize polyzwitterion-block-N-isopropyl acrylamide copolymers. J Chromatogr A 2020; 1628:461424. [PMID: 32822969 DOI: 10.1016/j.chroma.2020.461424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/02/2020] [Accepted: 07/20/2020] [Indexed: 12/01/2022]
Abstract
Block copolymers that exhibit both an upper critical solution temperature and a lower critical solution temperature are difficult to characterize due to inherent solubility difference between the two blocks. For example, accurate determination of both the molar mass and molar mass distribution is challenging for polyzwitterion-block-N-isopropyl acrylamide (NIPAM) copolymers in aqueous solutions due to self-assembly. However, there are a few examples of using size exclusion chromatography (SEC) for characterization, in which hexafluoro isopropanol (HFIP) is used in all cases. Yet, researchers are hesitant to use this solvent due to how expensive and hazardous HFIP is. Therefore, alternatives to HFIP for SEC analysis would be desirable. Here, a systematic methodology featuring aqueous SEC is demonstrated using several solvent conditions to enable the elution of polyzwitterion-block-NIPAM copolymers on Agilent PolarGel† and Tosoh TSKgel† column sets. These SEC conditions include 0.2 M KI in water on the PolarGel columns and 0.2 M KI/ 30% DMF in water on the PolarGel and TSKgel columns. These aqueous systems can be utilized for the characterization of similar water-soluble block copolymers that are relevant for drug delivery and other biomedical applications.
Collapse
Affiliation(s)
- Phillip D Pickett
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, United States
| | - Sara V Orski
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, United States
| | - Vivek M Prabhu
- Materials Science and Engineering Division, Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, United States.
| |
Collapse
|
23
|
Massi L, Najer A, Chapman R, Spicer CD, Nele V, Che J, Booth MA, Doutch JJ, Stevens MM. Tuneable peptide cross-linked nanogels for enzyme-triggered protein delivery. J Mater Chem B 2020; 8:8894-8907. [PMID: 33026394 DOI: 10.1039/d0tb01546f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Many diseases are associated with the dysregulated activity of enzymes, such as matrix metalloproteinases (MMPs). This dysregulation can be leveraged in drug delivery to achieve disease- or site-specific cargo release. Self-assembled polymeric nanoparticles are versatile drug carrier materials due to the accessible diversity of polymer chemistry. However, efficient loading of sensitive cargo, such as proteins, and introducing functional enzyme-responsive behaviour remain challenging. Herein, peptide-crosslinked, temperature-sensitive nanogels for protein delivery were designed to respond to MMP-7, which is overexpressed in many pathologies including cancer and inflammatory diseases. The incorporation of N-cyclopropylacrylamide (NCPAM) into N-isopropylacrylamide (NIPAM)-based copolymers enabled us to tune the polymer lower critical solution temperature from 33 to 44 °C, allowing the encapsulation of protein cargo and nanogel-crosslinking at slightly elevated temperatures. This approach resulted in nanogels that were held together by MMP-sensitive peptides for enzyme-specific protein delivery. We employed a combination of cryogenic transmission electron microscopy (cryo-TEM), dynamic light scattering (DLS), small angle neutron scattering (SANS), and fluorescence correlation spectroscopy (FCS) to precisely decipher the morphology, self-assembly mechanism, enzyme-responsiveness, and model protein loading/release properties of our nanogel platform. Simple variation of the peptide linker sequence and combining multiple different crosslinkers will enable us to adjust our platform to target specific diseases in the future.
Collapse
Affiliation(s)
- Lucia Massi
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK.
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Stănescu PO, Radu IC, Drăghici C, Teodorescu M. Controlling the thermal response of poly(N-isopropylacrylamide)-poly(ethylene glycol)- poly(N-isopropylacrylamide) triblock copolymers in aqueous solution by means of additives. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
25
|
Zhong Q, Chen C, Mi L, Wang JP, Yang J, Wu GP, Xu ZK, Cubitt R, Müller-Buschbaum P. Thermoresponsive Diblock Copolymer Films with a Linear Shrinkage Behavior and Its Potential Application in Temperature Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:742-753. [PMID: 31895574 DOI: 10.1021/acs.langmuir.9b03462] [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
The linear shrinkage behavior in thermoresponsive diblock copolymer films and its potential application in temperature sensors are investigated. The copolymer is composed of two thermoresponsive blocks with different transition temperatures (TTs): di(ethylene glycol) methyl ether methacrylate (MEO2MA; TT1 = 25 °C) and poly(ethylene glycol) methyl ether methacrylate (OEGMA300; TT2 = 60 °C) with a molar ratio of 1:1. Aqueous solutions of PMEO2MA-b-POEGMA300 show a three-stage transition upon heating as seen with optical transmittance and small-angle X-ray scattering: dissolution (T < TT1), self-assembled micelles with core-shell structure (TT1 < T < TT2), and aggregation of collapsed micelles (T > TT2). Due to the restrictions in the polymer chain arrangement introduced by the solid Si substrate, spin-coated PMEO2MA-b-POEGMA300 films exhibit an entirely different internal structure and transition behavior. Neutron reflectivity shows the absence of an ordered structure normal to the Si substrate in as-prepared PMEO2MA-b-POEGMA300 films. After exposure to D2O vapor for 3 h and then increasing the temperature above its TT1 and TT2, the ordered structure is still not observed. Only a D2O enrichment layer is formed close to the hydrophilic Si substrate. Such PMEO2MA-b-POEGMA300 films show a linear shrinkage between TT1 and TT2 in a D2O vapor atmosphere. This special behavior can be attributed to the synergistic effect between the restrained collapse of the PMEO2MA blocks by the still swollen POEGMA300 blocks and the impedance of chain arrangement by the Si substrate. Based on this unique behavior, spin-coated PMEO2MA-b-POEGMA300 films are further prepared into a temperature sensor by implementing Ag electrodes. Its resistance decreases linearly with temperature between TT1 and TT2.
Collapse
Affiliation(s)
- Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education , Zhejiang Sci-Tech University , 310018 Hangzhou , China
- Physik-Department, Lehrstuhl für Funktionelle Materialien , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Chen Chen
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education , Zhejiang Sci-Tech University , 310018 Hangzhou , China
| | - Lei Mi
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education , Zhejiang Sci-Tech University , 310018 Hangzhou , China
| | - Ji-Ping Wang
- Shanghai University of Engineering Science , 333 Long Teng Road , 201620 Shanghai , China
| | - Jing Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Zhi-Kang Xu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Robert Cubitt
- Institut Laue-Langevin , 6 rue Jules Horowitz , 38000 Grenoble , France
| | - Peter Müller-Buschbaum
- Physik-Department, Lehrstuhl für Funktionelle Materialien , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
- Heinz Maier-Leibnitz Zentrum (MLZ) , Technische Universität München , Lichtenbergstr. 1 , 85748 Garching , Germany
| |
Collapse
|
26
|
Sedlacek O, Filippov SK, Svec P, Hruby M. SET‐LRP Synthesis of Well‐Defined Light‐Responsible Block Copolymer Micelles. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ondrej Sedlacek
- Institute of Macromolecular ChemistryAcademy of Sciences of the Czech Republic Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
- Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
| | - Sergey K. Filippov
- Institute of Macromolecular ChemistryAcademy of Sciences of the Czech Republic Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
- School of Engineering and Applied ScienceHarvard University 9 Oxford Street Cambridge MA 02138 USA
| | - Pavel Svec
- Institute of Macromolecular ChemistryAcademy of Sciences of the Czech Republic Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
| | - Martin Hruby
- Institute of Macromolecular ChemistryAcademy of Sciences of the Czech Republic Heyrovsky Sq. 2 162 06 Prague 6 Czech Republic
| |
Collapse
|
27
|
Sponchioni M, Capasso Palmiero U, Moscatelli D. Thermo-responsive polymers: Applications of smart materials in drug delivery and tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:589-605. [PMID: 31147031 DOI: 10.1016/j.msec.2019.04.069] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/02/2019] [Accepted: 04/22/2019] [Indexed: 01/01/2023]
Abstract
Synthetic polymers are attracting great attention in the last decades for their use in the biomedical field as nanovectors for controlled drug delivery, hydrogels and scaffolds enabling cell growth. Among them, polymers able to respond to environmental stimuli have been recently under growing consideration to impart a "smart" behavior to the final product, which is highly desirable to provide it with a specific dynamic and an advanced function. In particular, thermo-responsive polymers, materials able to undergo a discontinuous phase transition or morphological change in response to a temperature variation, are among the most studied. The development of the so-called controlled radical polymerization techniques has paved the way to a high degree of engineering for the polymer architecture and properties, which in turn brought to a plethora of sophisticated behaviors for these polymers by simply switching the external temperature. These can be exploited in many different fields, from separation to advanced optics and biosensors. The aim of this review is to critically discuss the latest advances in the development of thermo-responsive materials for biomedical applications, including a highly controlled drug delivery, mediation of cell growth and bioseparation. The focus is on the structural and design aspects that are required to exploit such materials for cutting-edge applications in the biomedical field.
Collapse
Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.
| | - Umberto Capasso Palmiero
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Davide Moscatelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| |
Collapse
|
28
|
Li J, Kaku T, Tokura Y, Matsukawa K, Homma K, Nishimoto T, Hiruta Y, Akimoto AM, Nagase K, Kanazawa H, Shiratori S. Adsorption–Desorption Control of Fibronectin in Real Time at the Liquid/Polymer Interface on a Quartz Crystal Microbalance by Thermoresponsivity. Biomacromolecules 2019; 20:1748-1755. [DOI: 10.1021/acs.biomac.9b00121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jiatu Li
- Center for Material Design Science, School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| | - Taisei Kaku
- Center for Material Design Science, School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| | - Yuki Tokura
- Center for Material Design Science, School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| | - Ko Matsukawa
- The Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Tokyo, 113-8656, Japan
| | - Kenta Homma
- The Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Tokyo, 113-8656, Japan
| | - Taihei Nishimoto
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Yuki Hiruta
- Center for Material Design Science, School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| | - Aya Mizutani Akimoto
- The Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Tokyo, 113-8656, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Seimei Shiratori
- Center for Material Design Science, School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan
| |
Collapse
|
29
|
Effect of N-isopropylacrylamide thermoresponsive blocks on the rheological properties of water-soluble thermoassociative copolymers synthesized via RAFT polymerization. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4391-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
30
|
Velychkivska N, Starovoytova L, Březina V, Hanyková L, Hill JP, Labuta J. Improving the Colloidal Stability of Temperature-Sensitive Poly( N-isopropylacrylamide) Solutions Using Low Molecular Weight Hydrophobic Additives. ACS OMEGA 2018; 3:11865-11873. [PMID: 31459272 PMCID: PMC6645090 DOI: 10.1021/acsomega.8b01811] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/11/2018] [Indexed: 06/10/2023]
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) is an important polymer with stimuli-responsive properties, making it suitable for various uses. Phase behavior of the temperature-sensitive PNIPAM polymer in the presence of four low-molecular weight additives tert-butylamine (t-BuAM), tert-butyl alcohol (t-BuOH), tert-butyl methyl ether (t-BuME), and tert-butyl methyl ketone (t-BuMK) was studied in water (D2O) using high-resolution nuclear magnetic resonance (NMR) spectroscopy and dynamic light scattering. Phase separation was thermodynamically modeled as a two-state process which resulted in a simple curve which can be used for fitting of NMR data and obtaining all important thermodynamic parameters using simple formulas presented in this paper. The model is based on a modified van't Hoff equation. Phase separation temperatures T p and thermodynamic parameters (enthalpy and entropy change) connected with the phase separation of PNIPAM were obtained using this method. It was determined that T p is dependent on additives in the following order: T p(t-BuAM) > T p(t-BuOH) > T p(t-BuME) > T p(t-BuMK). Also, either increasing the additive concentration or increasing pK a of the additive leads to depression of T p. Time-resolved 1H NMR spin-spin relaxation experiments (T 2) performed above the phase separation temperature of PNIPAM revealed high colloidal stability of the phase-separated polymer induced by the additives (relative to the neat PNIPAM/D2O system). Small quantities of selected suitable additives can be used to optimize the properties of PNIPAM preparations including their phase separation temperatures, colloidal stabilities, and morphologies, thus improving the prospects for the application.
Collapse
Affiliation(s)
- Nadiia Velychkivska
- Department
of NMR Spectroscopy, Institute of Macromolecular
Chemistry AS CR, v.v.i., Heyrovsky Sq. 2, Prague 6 162 06, Czech Republic
| | - Larisa Starovoytova
- Department
of NMR Spectroscopy, Institute of Macromolecular
Chemistry AS CR, v.v.i., Heyrovsky Sq. 2, Prague 6 162 06, Czech Republic
| | - Václav Březina
- Faculty
of Mathematics and Physics, Department of Macromolecular Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Lenka Hanyková
- Faculty
of Mathematics and Physics, Department of Macromolecular Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Jonathan P. Hill
- National
Institute for Materials Science (NIMS), International Center for Materials
Nanoarchitectonics (WPI-MANA), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Jan Labuta
- National
Institute for Materials Science (NIMS), International Center for Materials
Nanoarchitectonics (WPI-MANA), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| |
Collapse
|
31
|
Salah I, Shamat MA, Cook MT. Soluplus solutions as thermothickening materials for topical drug delivery. J Appl Polym Sci 2018. [DOI: 10.1002/app.46915] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- I. Salah
- Department of Clinical and Pharmaceutical Sciences; Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire; Hatfield, Hertfordshire AL10 9AB UK
| | - M. Abou Shamat
- Department of Clinical and Pharmaceutical Sciences; Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire; Hatfield, Hertfordshire AL10 9AB UK
| | - M. T. Cook
- Department of Clinical and Pharmaceutical Sciences; Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire; Hatfield, Hertfordshire AL10 9AB UK
| |
Collapse
|
32
|
Zhong Q, Mi L, Metwalli E, Bießmann L, Philipp M, Miasnikova A, Laschewsky A, Papadakis CM, Cubitt R, Schwartzkopf M, Roth SV, Wang J, Müller-Buschbaum P. Effect of chain architecture on the swelling and thermal response of star-shaped thermo-responsive (poly(methoxy diethylene glycol acrylate)-block-polystyrene) 3 block copolymer films. SOFT MATTER 2018; 14:6582-6594. [PMID: 30052259 DOI: 10.1039/c8sm00965a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The effect of chain architecture on the swelling and thermal response of thin films obtained from an amphiphilic three-arm star-shaped thermo-responsive block copolymer poly(methoxy diethylene glycol acrylate)-block-polystyrene ((PMDEGA-b-PS)3) is investigated by in situ neutron reflectivity (NR) measurements. The PMDEGA and PS blocks are micro-phase separated with randomly distributed PS nanodomains. The (PMDEGA-b-PS)3 films show a transition temperature (TT) at 33 °C in white light interferometry. The swelling capability of the (PMDEGA-b-PS)3 films in a D2O vapor atmosphere is better than that of films from linear PS-b-PMDEGA-b-PS triblock copolymers, which can be attributed to the hydrophilic end groups and limited size of the PS blocks in (PMDEGA-b-PS)3. However, the swelling kinetics of the as-prepared (PMDEGA-b-PS)3 films and the response of the swollen film to a temperature change above the TT are significantly slower than that in the PS-b-PMDEGA-b-PS films, which may be related to the conformation restriction by the star-shape. Unlike in the PS-b-PMDEGA-b-PS films, the amount of residual D2O in the collapsed (PMDEGA-b-PS)3 films depends on the final temperature. It decreases from (9.7 ± 0.3)% to (7.0 ± 0.3)% or (6.0 ± 0.3)% when the final temperatures are set to 35 °C, 45 °C and 50 °C, respectively. This temperature-dependent reduction of embedded D2O originates from the hindrance of chain conformation from the star-shaped chain architecture.
Collapse
Affiliation(s)
- Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China. and Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Lei Mi
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Ezzeldin Metwalli
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Lorenz Bießmann
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Martine Philipp
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Anna Miasnikova
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
| | - Andre Laschewsky
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany and Fraunhofer Institut für Angewandte Polymerforschung, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany
| | - Christine M Papadakis
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Robert Cubitt
- Institut Laue-Langevin, 6 rue Jules Horowitz, 38000 Grenoble, France
| | - Matthias Schwartzkopf
- Deutsches Elektronen-Synchrotron (DESY), Photon Science, Notkestr. 85, 22607 Hamburg, Germany
| | - Stephan V Roth
- Deutsches Elektronen-Synchrotron (DESY), Photon Science, Notkestr. 85, 22607 Hamburg, Germany and KTH Royal Institute of Technology, Department of Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Jiping Wang
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Peter Müller-Buschbaum
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik Weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany.
| |
Collapse
|
33
|
Kaberov LI, Verbraeken B, Riabtseva A, Brus J, Radulescu A, Talmon Y, Stepanek P, Hoogenboom R, Filippov SK. Fluorophilic–Lipophilic–Hydrophilic Poly(2-oxazoline) Block Copolymers as MRI Contrast Agents: From Synthesis to Self-Assembly. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00957] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Leonid I. Kaberov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Bart Verbraeken
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Anna Riabtseva
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Jiri Brus
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Aurel Radulescu
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science JCNS, Outstation at Heinz Maier-Leibnitz Zentrum, Lichtenbergstraße 1, 85748 Garching, Germany
| | - Yeshayahu Talmon
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Petr Stepanek
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Sergey K. Filippov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic
| |
Collapse
|
34
|
Murakami T, Kawamori T, Gopez JD, McGrath AJ, Klinger D, Saito K. Synthesis of PEO-based physical gels with tunable viscoelastic properties. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28992] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takuya Murakami
- Materials Research Laboratory; University of California; Santa Barbara California 93016
- Department of Chemistry, Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8577 Japan
- Yokkaichi Research Center, JSR Corporation; Mie 510-8522 Japan
| | - Takashi Kawamori
- Materials Research Laboratory; University of California; Santa Barbara California 93016
| | - Jeffrey D. Gopez
- Materials Research Laboratory; University of California; Santa Barbara California 93016
| | - Alaina J. McGrath
- Materials Research Laboratory; University of California; Santa Barbara California 93016
| | - Daniel Klinger
- Materials Research Laboratory; University of California; Santa Barbara California 93016
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise Str. 2-4; Berlin 14195 Germany
| | - Kazuya Saito
- Department of Chemistry, Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8577 Japan
| |
Collapse
|
35
|
Gan Y, Wang ZD, Lu ZX, Shi Y, Tan HY, Yan CF. Control on the Morphology of ABA Amphiphilic Triblock Copolymer Micelles in Dioxane/Water Mixture Solvent. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2066-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
36
|
Papagiannopoulos A, Meristoudi A, Pispas S, Keiderling U. Thermal response of self-organization in an amphiphilic triblock polyelectrolyte and the influence of the globular protein lysozyme. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
37
|
Zajforoushan Moghaddam S, Zhu K, Nyström B, Thormann E. Thermo-responsive diblock and triblock cationic copolymers at the silica/aqueous interface: A QCM-D and AFM study. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
38
|
Spěváček J, Konefał R, Dybal J, Čadová E, Kovářová J. Thermoresponsive behavior of block copolymers of PEO and PNIPAm with different architecture in aqueous solutions: A study by NMR, FTIR, DSC and quantum-chemical calculations. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
39
|
Zashikhina NN, Volokitina MV, Korzhikov-Vlakh VA, Tarasenko II, Lavrentieva A, Scheper T, Rühl E, Orlova RV, Tennikova TB, Korzhikova-Vlakh EG. Self-assembled polypeptide nanoparticles for intracellular irinotecan delivery. Eur J Pharm Sci 2017; 109:1-12. [PMID: 28735041 DOI: 10.1016/j.ejps.2017.07.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/20/2017] [Accepted: 07/18/2017] [Indexed: 11/19/2022]
Abstract
In this research poly(l-lysine)-b-poly(l-leucine) (PLys-b-PLeu) polymersomes were developed. It was shown that the size of nanoparticles depended on pH of self-assembly process and varied from 180 to 650nm. The biodegradation of PLys-b-PLeu nanoparticles was evaluated using in vitro polypeptide hydrolysis in two model enzymatic systems, as well as in human blood plasma. The experiments on the visualization of cellular uptake of rhodamine 6g-loaded and fluorescein-labeled nanoparticles were carried out and the possibility of their penetration into the cells was approved. The cytotoxicity of polymersomes obtained was tested using three cell lines, namely, HEK, NIH-3T3 and A549. It was shown that tested nanoparticles did not demonstrate any cytotoxicity in the concentrations up to 2mg/mL. The encapsulation of specific to colorectal cancer anti-tumor drug irinotecan into developed nanocontainers was performed by means of pH gradient method. The dispersion of drug-loaded polymersomes in PBS was stable at 4°C for a long time (at least 1month) without considerable drug leakage. The kinetics of drug release was thoroughly studied using two model enzymatic systems, human blood serum and PBS solution. The approximation of irinotecan release profiles with different mathematical drug release models was carried out and allowed identification of the release mechanism, as well as the morphological peculiarities of developed particles. The dependence of encapsulation efficiency, as well as maximal loading capacity, on initial drug concentration was studied. The maximal drug loading was found as 320±55μg/mg of polymersomes. In vitro anti-tumoral activity of irinotecan-loaded polymersomes on a colon cancer cell line (Caco-2) was measured and compared to that for free drug.
Collapse
Affiliation(s)
- N N Zashikhina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia
| | - M V Volokitina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia
| | - V A Korzhikov-Vlakh
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - I I Tarasenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia
| | - A Lavrentieva
- Institute for Technical Chemistry, Leibniz University Hannover, Callinstrasse 5, 30167 Hannover, Germany
| | - T Scheper
- Institute for Technical Chemistry, Leibniz University Hannover, Callinstrasse 5, 30167 Hannover, Germany
| | - E Rühl
- Institute of Chemistry and Biochemistry, Free University of Berlin, Takustraße 3, 14195 Berlin, Germany
| | - R V Orlova
- Medical Faculty, Saint-Petersburg State University, Line 22, 199004 St. Petersburg, Russia
| | - T B Tennikova
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia.
| | - E G Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia
| |
Collapse
|
40
|
Cook MT, Filippov SK, Khutoryanskiy VV. Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4084-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|