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Gupta C, Singh P, Vaidya S, Ambre P, Coutinho E. A novel thermoresponsive nano carrier matrix of hyaluronic acid, methotrexate and chitosan to target the cluster of differentiation 44 receptors in tumors. Int J Biol Macromol 2023; 243:125238. [PMID: 37290545 DOI: 10.1016/j.ijbiomac.2023.125238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/28/2023] [Accepted: 06/04/2023] [Indexed: 06/10/2023]
Abstract
Major challenges in current cancer chemotherapy include drug resistance, low efficacy and non-selectivity, resulting in undesirable side effects. In this study, we demonstrate a solution to these challenges that involves a dual targeting approach for tumors that overexpress CD44 receptors. The approach employs a nano-formulation (tHAC-MTX nano assembly), fabricated from hyaluronic acid (HA), the natural ligand for CD44, conjugated with methotrexate (MTX) and complexed with the thermoresponsive polymer 6-O-carboxymethylchitosan (6-OCMC) graft poly(N-isopropylacrylamide) [6-OCMC-g-PNIPAAm]. The thermoresponsive component was designed to have a lower critical solution temperature of 39 °C (the temperature of tumor tissues). In-vitro drug release studies reveal faster release of the drug at the higher temperatures of the tumor tissue likely due to the conformation changes in the thermoresponsive component of the nano assembly. Drug release was also enhanced in the presence of hyaluronidase enzyme. Higher cellular uptake and greater cytotoxicity of the nanoparticles were demonstrated in cancer cells that overexpress CD44 receptors suggesting a receptor binding and cellular uptake mechanism. Such nano-assemblies which incorporate multiple targeting mechanisms have the potential to improve efficacy and decrease side effects of cancer chemotherapy.
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Affiliation(s)
- Chandan Gupta
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400098, Maharashtra, India
| | - Pinky Singh
- Haffkine Institute for Training, Research and Testing, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Shashikant Vaidya
- Haffkine Institute for Training, Research and Testing, Acharya Donde Marg, Parel, Mumbai 400012, Maharashtra, India
| | - Premlata Ambre
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400098, Maharashtra, India.
| | - Evans Coutinho
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai 400098, Maharashtra, India; St John Institute of Pharmacy and Research, Vevoor, Manor Road, Palghar East, Palghar 401404, India
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2
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Therapeutic Application of an Ag-Nanoparticle-PNIPAAm-Modified Eggshell Membrane Construct for Dermal Regeneration and Reconstruction. Pharmaceutics 2022; 14:pharmaceutics14102162. [PMID: 36297596 PMCID: PMC9607136 DOI: 10.3390/pharmaceutics14102162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/28/2022] Open
Abstract
Current therapeutic treatments for the repair and/or replacement of damaged skin following disease or traumatic injury is severely limited. The chicken eggshell membrane (ESM) is a unique material: its innate physical and mechanical characteristics offer optimal barrier properties and, as a naturally derived extract, it demonstrates inherent biocompatibility/biodegradability. To further enhance its therapeutic and clinical potential, the ESM can be modified with the thermo-responsive polymer, poly(N-isopropylacrylAmide) (PNIPAAm) as well as the incorporation of (drug-loaded) silver nanoparticles (AgNP); essentially, by a simple change in temperature, the release and delivery of the NP can be targeted and controlled. In this study, ESM samples were isolated using a decellularization protocol, and the physical and mechanical characteristics were profiled using SEM, FT-IR, DSC and DMA. PNIPAAm was successfully grafted to the ESM via amidation reactions and confirmed using FT-IR, which demonstrated the distinctive peaks associated with Amide A (3275 cm−1), Amide B (2970 cm−1), Amide I (1630 cm−1), Amide II (1535 cm−1), CH2, CH3 groups, and Amide III (1250 cm−1) peaks. Confirmation of the incorporation of AgNP onto the stratified membrane was confirmed visually with SEM, qualitatively using FT-IR and also via changes in absorbance at 380 nm using UV-Vis spectrophotometry during a controlled release study for 72 h. The biocompatibility and cytotoxicity of the novel constructs were assessed using human dermal fibroblast (HDFa) and mouse dermal fibroblast (L929) cells and standard cell culture assays. Metabolic activity assessment (i.e., MTS assay), LDH-release profiles and Live/Dead staining demonstrated good attachment and spreading to the samples, and high cell viability following 3 days of culture. Interestingly, longer-term viability (>5 days), the ESM-PNIPAAm and ESM-PNIPAAm (AgNP) samples showed a greater and sustained cell viability profile. In summary, the modified and enhanced ESM constructs were successfully prepared and characterized in terms of their physical and mechanical profiles. AgNP were successfully loaded into the construct and demonstrated a desirable release profile dependent on temperature modulation. Fibroblasts cultured on the extracted ESM samples and ESM-PNIPAAm demonstrated high biocompatibility in terms of high cell attachment, spreading, viability and proliferation rates. As such, this work summarizes the development of an enhanced ESM-based construct which may be exploited as a clinical/therapeutic wound dressing as well as a possible application as a novel biomaterial scaffold for drug development.
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3
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A Review of Properties of Nanocellulose, Its Synthesis, and Potential in Biomedical Applications. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147090] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cellulose is the most venerable and essential natural polymer on the planet and is drawing greater attention in the form of nanocellulose, considered an innovative and influential material in the biomedical field. Because of its exceptional physicochemical characteristics, biodegradability, biocompatibility, and high mechanical strength, nanocellulose attracts considerable scientific attention. Plants, algae, and microorganisms are some of the familiar sources of nanocellulose and are usually grouped as cellulose nanocrystal (CNC), cellulose nanofibril (CNF), and bacterial nanocellulose (BNC). The current review briefly highlights nanocellulose classification and its attractive properties. Further functionalization or chemical modifications enhance the effectiveness and biodegradability of nanocellulose. Nanocellulose-based composites, printing methods, and their potential applications in the biomedical field have also been introduced herein. Finally, the study is summarized with future prospects and challenges associated with the nanocellulose-based materials to promote studies resolving the current issues related to nanocellulose for tissue engineering applications.
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Abstract
A critical review on the synthesis, characterization, and modeling of polymer grafting is presented. Although the motivation stemmed from grafting synthetic polymers onto lignocellulosic biopolymers, a comprehensive overview is also provided on the chemical grafting, characterization, and processing of grafted materials of different types, including synthetic backbones. Although polymer grafting has been studied for many decades—and so has the modeling of polymer branching and crosslinking for that matter, thereby reaching a good level of understanding in order to describe existing branching/crosslinking systems—polymer grafting has remained behind in modeling efforts. Areas of opportunity for further study are suggested within this review.
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Zain G, Bučková M, Mosnáčková K, Doháňošová J, Opálková Šišková A, Mičušík M, Kleinová A, Matúš P, Mosnáček J. Antibacterial cotton fabric prepared by surface-initiated photochemically induced atom transfer radical polymerization of 2-(dimethylamino)ethyl methacrylate with subsequent quaternization. Polym Chem 2021. [DOI: 10.1039/d1py01322j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Antibacterial highly grafted cotton fabric with good laundry resistance was prepared using photoATRP in the presence of air.
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Affiliation(s)
- Gamal Zain
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
- Pretreatment and Finishing of Cellulose Based Textiles Dept., Textile Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Mária Bučková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Katarína Mosnáčková
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
| | - Jana Doháňošová
- Central Laboratories, Faculty of Chemical and Food Technology STU, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Alena Opálková Šišková
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
- Institute of Materials and Machines Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia
| | - Matej Mičušík
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
| | - Angela Kleinová
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
| | - Peter Matúš
- Institute of Laboratory Research on Geomaterials, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Jaroslav Mosnáček
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia
- Centre for Advanced Materials Application, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovakia
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Facile Preparation of Polymer-Grafted Halloysite Nanotubes via a Redox System: a Novel Approach to Construct Antibacterial Hydrogel. Macromol Res 2020. [DOI: 10.1007/s13233-020-8130-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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pH tempted Micellization of β-Cyclodextrin based Diblock copolymer and its application in solid/liquid separation. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02095-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Structural elucidation and biological aptitude of modified hydroxyethylcellulose-polydimethyl siloxane based polyurethanes. Int J Biol Macromol 2020; 150:426-440. [DOI: 10.1016/j.ijbiomac.2020.01.288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/02/2020] [Accepted: 01/28/2020] [Indexed: 12/14/2022]
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9
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Takayama Y, Matějka L, Kato N. Dynamic gelation of shear-induced filamentous domains for cellulose ether assemblies due to polyion complexation. Carbohydr Polym 2020; 234:115880. [PMID: 32070503 DOI: 10.1016/j.carbpol.2020.115880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/24/2019] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
Abstract
Assemblies of carbohydrate polymers are important in a number of applications and improved methods for their fabrication are increasingly sought after. Herein, we report that an aqueous two-phase system of alginate (Alg) and hydroxypropyl cellulose with poly(methacrylic acid) graft chains (HPC-PMA) facilitated the assembly of Alg/HPC-PMA in both phases. Dynamically formed filamentous domains in a flow field were gelled by rapid complexation with cationic polyethyleneimine (PEI). The fabricated HPC-PMA gel filament morphologies can be switched between the bundled and dissociated gel filaments using a co-flow microfluidic device in response to the amount of supplied PEI crosslinker. Excess complexation of PEI contributes to the fabrication of cationic gel filaments; this contribution results in a dissociated structure due to electrostatic repulsion. In contrast, an appropriate amount of PEI resulted in a bundle structure. The proposed spinning method avoids the risk of nozzle clogging, and enables the one-step spinning of multiple gel filaments.
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Affiliation(s)
- Yuriko Takayama
- Department of Fundamental Engineering, School of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan
| | - Libor Matějka
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Norihiro Kato
- Department of Fundamental Engineering, School of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan.
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10
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Mate CJ, Mishra S, Srivastava P. In vitro release kinetics of graft matrices from Lannea coromandelica (Houtt) gum for treatment of colonic diseases by 5-ASA. Int J Biol Macromol 2020; 149:908-920. [DOI: 10.1016/j.ijbiomac.2020.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 11/28/2022]
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11
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Khan A, Afzal M, Shah LA, Zaman K, Khan GS, Badshah A. Preparation and Physicochemical Characterization of Dual Responsive and Chemically Modified Cellulose Based Copolymer Hydrogels. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-1470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
This research work is based on the preparation and physicochemical characterization of Poly(N-isopropylacrylamide)–Cellulose–Poly(Acrylic acid) [PNIPAAm–Cellulose–PAAc] based terpolymer hydrogels. The free radical polymerization reaction was initiated by the presence of ammonium persulphate (APS) and crosslinking between different monomers was occurring through N,Nl- Methylene bis-acrylamide (MBA). Confirmation of polymerization process was done by FT-IR and UV-visible spectroscopy. The prepared hydrogels were further characterized by different physicochemical techniques like rheology, Ostwald viscometry and dynamic light scattering (DLS). The effect of external stimuli like temperature, pH and composition of the samples on the physicochemical behavior was also carried out by dynamic rheology, swelling measurement and DLS. Various other properties like elasticity, shear stress, shear strain, loss modulus, storage modulus and complex viscosity was investigated by rheology. DLS was used to trace the size and swelling behavior of the samples. From the results obtained it was found that all the microgel samples are stimuli responsive and most of their physicochemical properties were prominently varying while changing the internal as well as the external experimental variable. These changes in physicochemical behavior of the gel can be attributed to two possibilities; the change in the hydrophobic character of gel (PNIPAAm) with temperature and also to the weakening of intermolecular hydrogen bonds with increase in temperature. As a result of this the PAA chains may undergo a transition from a compact conformation to an expanded coil conformation, resulting in the swelling of the hydrogels.
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Affiliation(s)
- Abbas Khan
- Department of Chemistry , Abdul Wali Khan University Mardan, Mardan 23200 , Pakistan , Tel.: +92-3408467885, Fax: +92-937-542188, e-mail:
| | - Mehvish Afzal
- Department of Chemistry , Abdul Wali Khan University Mardan, Mardan 23200 , Pakistan
| | - Luqman Ali Shah
- Polymer Laboratory , National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar 25120 , Pakistan
| | - Khair Zaman
- Department of Chemistry , Abdul Wali Khan University Mardan, Mardan 23200 , Pakistan
| | - Gul Shahzada Khan
- Department of Chemistry , Abdul Wali Khan University Mardan, Mardan 23200 , Pakistan
| | - Amir Badshah
- Department of Chemistry , Kohat University of Science and Technology , Kohat , Pakistan
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12
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Surface modification of cellulose via conventional and controlled radiation-induced grafting. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.03.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Li B, Zhang Y, Wu C, Guo B, Luo Z. Fabrication of mechanically tough and self-recoverable nanocomposite hydrogels from polyacrylamide grafted cellulose nanocrystal and poly(acrylic acid). Carbohydr Polym 2018; 198:1-8. [DOI: 10.1016/j.carbpol.2018.06.047] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 12/01/2022]
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14
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Influence of Macromolecular Architecture on the Optical and Humidity-Sensing Properties of Poly(N,N-Dimethylacrylamide)-Based Block Copolymers. Polymers (Basel) 2018; 10:polym10070769. [PMID: 30960694 PMCID: PMC6403531 DOI: 10.3390/polym10070769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 11/16/2022] Open
Abstract
The influence of the macromolecular architecture of block copolymers containing poly(N,N-dimethyl acrylamide) (PDMA) on the optical characteristics and sensing properties of corresponding thin films is discussed. Series of hydrophilic PDMA-based copolymers of different chemical composition and chain architecture such as triblock, star-shaped, and branched were synthesized. The copolymers were characterized using conventional spectroscopic techniques as well as methods for characterization of copolymer macromolecular characteristics in solution, namely size-exclusion chromatography and static light scattering. Thin films of the copolymers of nanometer scale thickness were deposited on silicon substrates by the spin-coating method. The refractive index and extinction coefficient of the copolymer films were calculated from the reflectance spectra by using non-linear curve fitting methods and the composition-structure-optical properties relationships were evaluated. Humidity-sensing properties of the films were studied by measuring reflectance spectra of the films at a relative humidity range from 5 to 95%RH. The implementation of the copolymer films as optical sensors of humidity is justified and discussed.
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Chen W, He H, Zhu H, Cheng M, Li Y, Wang S. Thermo-Responsive Cellulose-Based Material with Switchable Wettability for Controllable Oil/Water Separation. Polymers (Basel) 2018; 10:E592. [PMID: 30966626 PMCID: PMC6403979 DOI: 10.3390/polym10060592] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/21/2018] [Accepted: 05/25/2018] [Indexed: 12/23/2022] Open
Abstract
A thermo-responsive cellulose-based material (cellulose-g-PNIPAAm) was prepared by grafting N-isopropylacrylamide (NIPAAm) onto bagasse pulp cellulose via Ce (IV)-initiated free radical polymerization. The surfaces of the obtained cellulose-g-PNIPAAm paper showed a rapid wettability conversion from being hydrophilic (water contact angles (WCA) of 0°) at 25 °C to becoming hydrophobic (WCA of 134.2°) at 45 °C. Furthermore, the thermo-responsive mechanism of cellulose-g-PNIPAAm was examined by the in situ variable-temperature 13C NMR, ¹H NMR and AFM analysis. At the same time, the resulting cellulose paper was applied for a switchable separation of oil/water mixtures. Water can pass through the paper under 45 °C, while oil is kept on the paper. When the temperature is above 45 °C, oil can permeate through the paper, while water cannot pass through the water. Moreover, the paper exhibited excellent regeneration performance after five cycles and maintained its switchable wettability.
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Affiliation(s)
- Wenbo Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Hui He
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Hongxiang Zhu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Meixiao Cheng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Yunhua Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
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16
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Bai L, Jiang X, Liu B, Wang W, Chen H, Xue Z, Niu Y, Yang H, Wei D. RAFT-mediated Pickering emulsion polymerization with cellulose nanocrystals grafted with random copolymer as stabilizer. RSC Adv 2018; 8:28660-28667. [PMID: 35548399 PMCID: PMC9084400 DOI: 10.1039/c8ra03816c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/26/2018] [Indexed: 12/26/2022] Open
Abstract
The synthesis of a RAFT-mediated Pickering emulsion was firstly achieved by using cellulose nanocrystals (CNCs) grafted with a random copolymer as the stabilizer. Firstly, poly(acrylonitrile-r-butyl acrylate) (poly(AN-r-nBA)) was synthesized by Cu(0)-mediated CRP, which was further modified via a click chemistry strategy to obtain poly(ethylene tetrazole-r-butyl acrylate) (poly(VT-r-nBA)). Then, poly(VT-r-nBA) was grafted onto the CNCs through a Mitsunobu reaction to obtain poly(VT-r-nBA)-g-CNCs. Stabilized by poly(VT-r-nBA)-g-CNCs, an O/W RAFT-mediated Pickering emulsion was formed for the preparation of well-controlled poly(methyl methacrylate) (PMMA) particles with water-soluble potassium persulfate (KPS) as an initiator and oil-soluble 4-cyanopentanoic acid dithiobenzoate (CPADB) as a chain transfer agent. Rheological analysis suggested that the prepared Pickering emulsion possessed good stability under the influences of changes in strain, time, frequency and temperature. Furthermore, the recycling and further utilization of the poly(VT-r-nBA)-g-CNCs could be simply realized through centrifugal separation. A RAFT-mediated Pickering emulsion with cellulose nanocrystals grafted with a random copolymer was used for the preparation of poly(methyl methacrylate) particles..![]()
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Affiliation(s)
- Liangjiu Bai
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Xinyan Jiang
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Beifang Liu
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Wenxiang Wang
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Hou Chen
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Zhongxin Xue
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Yuzhong Niu
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Huawei Yang
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
| | - Donglei Wei
- School of Chemistry and Materials Science
- Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province
- Ludong University
- Yantai 264025
- China
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Hai TAP, Sugimoto R. Surface functionalization of cellulose with poly(3-hexylthiophene) via novel oxidative polymerization. Carbohydr Polym 2018; 179:221-227. [DOI: 10.1016/j.carbpol.2017.09.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/07/2017] [Accepted: 09/21/2017] [Indexed: 10/18/2022]
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18
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Nanogels of methylcellulose hydrophobized with N-tert-butylacrylamide for ocular drug delivery. Drug Deliv Transl Res 2017; 6:648-659. [PMID: 27807769 DOI: 10.1007/s13346-016-0337-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
While eye drops account for the majority of ophthalmic formulation for drug delivery, their efficiency is limited by rapid pre-corneal loss. In this study, we investigate nanogel suspensions in order to improve the topical ocular therapy by reducing dosage and frequency of administration. We synthesized self-assembling nanogels of 140 nm by grafting side chains of poly(N-tert-butylacrylamide) (PNtBAm) on methylcellulose via cerium ammonium nitrate. Successful grafting of PNtBAm onto methylcellulose (MC) was confirmed by both NMR and ATR. Synthesized molecules (MC-g-PNtBAm) self-assembled in water driven by hydrophobic interaction of the grafted side chains creating colloid solutions. Materials were synthesized by changing feed ratios of acid, initiator and monomer in order to control the degree of hydrophobic modification. The nanogels were tested for different degrees of grafting. Viability studies performed with HCE cells testified to the biocompatibility of poly(N-tert-butylacrylamide) grafted methylcellulose nanogels. Dexamethasone was entrapped with an efficiency superior to 95 % and its release presented minimal burst phase. Diffusion of drug from the nanogels was found to be delayed by increasing the degree of grafting. The release profile of the entrapped compound from the MC-g-PNtBAm nanogels can thus be tuned by simply adjusting the degree of hydrophobic modification. MC-g-PNtBAm nanogels present promising properties for ocular drug delivery.
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Phung Hai TA, Sugimoto R. Photoluminescence Control of Cellulose via Surface Functionalization Using Oxidative Polymerization. Biomacromolecules 2017; 18:4011-4021. [DOI: 10.1021/acs.biomac.7b01067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thien An Phung Hai
- School of Environmental Science
and Engineering, Kochi University of Technology, Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, Japan
| | - Ryuichi Sugimoto
- School of Environmental Science
and Engineering, Kochi University of Technology, Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, Japan
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20
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Kedzior SA, Graham L, Moorlag C, Dooley BM, Cranston ED. Poly(methyl methacrylate)-grafted cellulose nanocrystals: One-step synthesis, nanocomposite preparation, and characterization. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22456] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Stephanie A. Kedzior
- Department of Chemical Engineering; McMaster University; 1280 Main St. West Hamilton ON, L8S 4L7 Canada
| | - Lexa Graham
- Department of Chemical Engineering; McMaster University; 1280 Main St. West Hamilton ON, L8S 4L7 Canada
| | - Carolyn Moorlag
- Xerox Research Centre of Canada; 2660 Speakman Drive Mississauga ON, L5K 2L1 Canada
| | - Brynn M. Dooley
- Xerox Research Centre of Canada; 2660 Speakman Drive Mississauga ON, L5K 2L1 Canada
| | - Emily D. Cranston
- Department of Chemical Engineering; McMaster University; 1280 Main St. West Hamilton ON, L8S 4L7 Canada
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21
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Raskin MM, Schlachet I, Sosnik A. Mucoadhesive nanogels by ionotropic crosslinking of chitosan-g-oligo(NiPAam) polymeric micelles as novel drug nanocarriers. Nanomedicine (Lond) 2016; 11:217-33. [PMID: 26786232 DOI: 10.2217/nnm.15.191] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
AIM To investigate a novel kind of mucoadhesive nanogel based on the supramolecular aggregation of chitosan-g-oligo(N-isopropylacrylamide) copolymers. MATERIALS & METHODS Copolymers were synthesized by the graft-free radical polymerization of N-isopropylacrylamide on chitosan. The aggregation was studied by dynamic light scattering and nanoparticle tracking analysis (NTA), the nanostructure by transmission electron microscopy(TEM)/cryo-TEM, the mucoadhesiveness in vitro with mucin and the cytocompatibility in Caco2 cells. RESULTS Copolymers (36-74% w/w N-isopropylacrylamide content) showed critical micellar concentration between 2.0 and 40.0 × 10(-3)% w/v and micelles were nanometric and positively charged. Physical stabilization was achieved with ionotropic crosslinking. TEM/cryo-TEM revealed multimicellar aggregates with good mucoadhesion and cytocompatibility properties. Micellar systems (1-10% w/v) increased the solubility of efavirenz up to 1249-fold. CONCLUSION Results support the potential of these nano-drug delivery systems for improved mucosal administration of hydrophobic drugs.
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Affiliation(s)
- Maya Menaker Raskin
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science & Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Inbar Schlachet
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science & Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science & Engineering, Technion-Israel Institute of Technology, Haifa, Israel.,Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Technion City, Haifa, Israel
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22
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Xue N, Wang L, Pei M, He Y, Du Y, Guo W. Preparation and characterization of sodium polyacrylate-grafted bentonite and its performance removing Pb2+ from aqueous solutions. RSC Adv 2016. [DOI: 10.1039/c6ra17214h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new adsorbent, sodium polyacrylate (PAANa) grafted onto the surface of bentonite (Bent), was successfully synthesized by a facile and green Ce(iv)-redox process, to remove Pb2+ from aqueous solutions.
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Affiliation(s)
- Ni Xue
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Luyan Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Meishan Pei
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Youjun He
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Yankai Du
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Wenjuan Guo
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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23
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Phosphorylated cellulose triacetate–silica composite adsorbent for recovery of heavy metal ion. Carbohydr Polym 2016; 136:1315-22. [DOI: 10.1016/j.carbpol.2015.10.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 09/23/2015] [Accepted: 10/13/2015] [Indexed: 11/24/2022]
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24
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Hebeish A, Farag S, Sharaf S, Shaheen T. Radically new cellulose nanocomposite hydrogels: Temperature and pH responsive characters. Int J Biol Macromol 2015; 81:356-61. [DOI: 10.1016/j.ijbiomac.2015.08.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/01/2015] [Accepted: 08/08/2015] [Indexed: 12/31/2022]
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25
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Tian Y, Ju B, Zhang S, Duan X, Dong D. Preparation and phase transition behaviors of temperature-responsive 3-butoxy-2-hydroxypropyl hydroxyethyl celluloses. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:1100-11. [DOI: 10.1080/09205063.2015.1077918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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26
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Abdelwahab NA, Ammar NS, Ibrahim HS. Graft copolymerization of cellulose acetate for removal and recovery of lead ions from wastewater. Int J Biol Macromol 2015; 79:913-22. [DOI: 10.1016/j.ijbiomac.2015.05.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 04/16/2015] [Accepted: 05/10/2015] [Indexed: 10/23/2022]
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27
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Poly(butylene succinate-co-butylene adipate)/cellulose nanocrystal composites modified with phthalic anhydride. Carbohydr Polym 2015; 134:52-9. [PMID: 26428099 DOI: 10.1016/j.carbpol.2015.07.078] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/06/2015] [Accepted: 07/22/2015] [Indexed: 11/20/2022]
Abstract
As a kind of biomass nanofiller for polymers, cellulose nanocrystal (CNC) has good mechanical properties and reinforcing capability. To improve the compatibility of poly(butylene succinate-co-butylene adipate) (PBSA)/CNC composites, phthalic anhydride was used as a compatilizer during melt mixing, leading to the significant improvement of the mechanical properties and thermal stability of the composites, which is related to the better dispersion of CNC in the composites. The addition of phthalic anhydride could accelerate the crystallization of PBSA component as evidenced by the curves of isothermal crystallization of the composites, but had little effect on the crystalline polymorphs of PBSA component. The addition of phthalic anhydride could strongly improve the hydrophobicity of the composites. The good mechanical properties, fast crystallization and improved hydrophobicity of PBSA/CNC composites with phthalic anhydride are favor to their practical commercial utilization.
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28
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Zhuang M, Liu T, Song K, Ge D, Li X. Thermo-responsive poly(N-isopropylacrylamide)-grafted hollow fiber membranes for osteoblasts culture and non-invasive harvest. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:410-9. [PMID: 26117772 DOI: 10.1016/j.msec.2015.05.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 04/21/2015] [Accepted: 05/08/2015] [Indexed: 12/29/2022]
Abstract
Hollow fiber membrane (HFM) culture system is one of the most important bioreactors for the large-scale culture and expansion of therapeutic cells. However, enzymatic and mechanical treatments are traditionally applied to harvest the expanded cells from HFMs, which inevitably causes harm to the cells. In this study, thermo-responsive cellulose acetate HFMs for cell culture and non-invasive harvest were prepared for the first time via free radical polymerization in the presence of cerium (IV). ATR-FTIR and elemental analysis results indicated that the poly(N-isopropylacrylamide) (PNIPAAm) was covalently grafted on HFMs successfully. Dynamic contact angle measurements at different temperatures revealed that the magnitude of volume phase transition was decreased with increasing grafted amount of PNIPAAm. And the amount of serum protein adsorbed on HFMs surface also displayed the same pattern. Meanwhile osteoblasts adhered and spread well on the surface of PNIPAAm-grafted HFMs at 37 °C. And Calcein-AM/PI staining, AB assay, ALP activity and OCN protein expression level all showed that PNIPAAm-grafted HFMs had good cell compatibility. After incubation at 20 °C for 120 min, the adhering cells on PNIPAAm-grafted HFMs turned to be round and detached after being gently pipetted. These results suggest that thermo-responsive HFMs are attractive cell culture substrates which enable cell culture, expansion and the recovery without proteolytic enzyme treatment for the application in tissue engineering and regenerative medicine.
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Affiliation(s)
- Meiling Zhuang
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
| | - Tianqing Liu
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
| | - Kedong Song
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
| | - Dan Ge
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
| | - Xiangqin Li
- Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China.
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29
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Tang E, Du K, Feng X, Yuan M, Liu S, Zhao D. Controlled synthesis of cellulose-graft-poly[2-(diethylamino)-ethyl methacrylate] by ATRP in ionic liquid [AMIM]Cl and its pH-responsive property. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Wei L, McDonald AG, Stark NM. Grafting of Bacterial Polyhydroxybutyrate (PHB) onto Cellulose via In Situ Reactive Extrusion with Dicumyl Peroxide. Biomacromolecules 2015; 16:1040-9. [DOI: 10.1021/acs.biomac.5b00049] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Liqing Wei
- Renewable
Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, Idaho 83844-1132, United States
| | - Armando G. McDonald
- Renewable
Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, Idaho 83844-1132, United States
| | - Nicole M. Stark
- U.S. Department of Agriculture, Forest Service,
Forest Products Laboratory, One Gifford Pinchot Drive, Madison, Wisconsin 53726-2398, United States
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31
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Constantin M, Bucatariu S, Ascenzi P, Simionescu BC, Fundueanu G. Poly(NIPAAm-co-β-cyclodextrin) microgels with drug hosting and temperature-dependent delivery properties. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.07.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Huang Z, Wu Z, Yang P, Yang W. Chemoselective phototransformation of C-H bonds on a polymer surface through a photoinduced cerium recycling redox reaction. Chemistry 2014; 20:11421-7. [PMID: 25056266 DOI: 10.1002/chem.201402786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Indexed: 11/11/2022]
Abstract
It is generally accepted that Ce(4+) is unable to directly oxidize unreactive alkyl C-H bonds without the assistance of adjacent polar groups. Herein, we demonstrate in our newly developed confined photochemical reaction system that this recognized issue may be challenged. As we found, when a thin layer of a CeCl(3)/HCl aqueous solution was applied to a polymeric substrate and the substrate subjected to UV irradiation, Ce(3+) was first photooxidized to form Ce(4+) in the presence of H(+), and the in situ formed Ce(4+) then performs an oxidation reaction on the C-H bonds of the polymer surface to form surface-carbon radicals for radical graft polymerization reactions and functional-group transformations, while reducing to Ce(3+) and releasing H(+) in the process. This photoinduced cerium recycling redox (PCRR) reaction behaved as a biomimetic system in an artificial recycling reaction, leading to a sustainable chemical modification strategy for directly transforming alkyl C-H bonds on polymer surfaces into small-molecule groups and polymer brushes. This method is expected to provide a green and economical tool for industrial applications of polymer-surface modification.
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Affiliation(s)
- Zhenhua Huang
- The State Key Laboratory of Chemical Resource Engineering, College of Material Science and Engineering, Beijing University of Chemical Technology (BUCT), Beijing, 100029 (P. R. China), Fax: (+86) 10-64416338
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33
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Isik M, Sardon H, Mecerreyes D. Ionic liquids and cellulose: dissolution, chemical modification and preparation of new cellulosic materials. Int J Mol Sci 2014; 15:11922-40. [PMID: 25000264 PMCID: PMC4139821 DOI: 10.3390/ijms150711922] [Citation(s) in RCA: 184] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 06/13/2014] [Accepted: 06/23/2014] [Indexed: 11/16/2022] Open
Abstract
Due to its abundance and a wide range of beneficial physical and chemical properties, cellulose has become very popular in order to produce materials for various applications. This review summarizes the recent advances in the development of new cellulose materials and technologies using ionic liquids. Dissolution of cellulose in ionic liquids has been used to develop new processing technologies, cellulose functionalization methods and new cellulose materials including blends, composites, fibers and ion gels.
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Affiliation(s)
- Mehmet Isik
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 San Sebastian, Spain.
| | - Haritz Sardon
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 San Sebastian, Spain.
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 San Sebastian, Spain.
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34
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Che N, Yang S, Kang H, Liu R, Li Z, Liu Z, Li P, Qu X, Huang Y. Synthesis and properties of CO2-switchable Dex-g-PAHMA copolymers. Polym Chem 2014. [DOI: 10.1039/c4py00987h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO2-switchable Dex-g-PAHMA copolymers were synthesized and characterized. The properties of the graft copolymers and the cytotoxicity and cellular uptake of DOX-loaded Dex-g-PAHMA copolymer micelles were investigated.
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Affiliation(s)
- Ning Che
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Saina Yang
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Hongliang Kang
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Ruigang Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Zhuang Li
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Zhijing Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Pingping Li
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Xiaozhong Qu
- University of Chinese Academy of Sciences
- Beijing 100049, China
| | - Yong Huang
- State Key Laboratory of Polymer Physics and Chemistry
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
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35
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Mellati A, Dai S, Bi J, Jin B, Zhang H. A biodegradable thermosensitive hydrogel with tuneable properties for mimicking three-dimensional microenvironments of stem cells. RSC Adv 2014. [DOI: 10.1039/c4ra12215a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chitosan-g-poly(N-isopropylacrylamide) was synthesized as a stem cell mimicking microenvironment. Solubility and gel mechanical strength were optimised through manipulating the grafting parameters.
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Affiliation(s)
- Amir Mellati
- School of Chemical Engineering
- The University of Adelaide
- Adelaide SA5005, Australia
| | - Sheng Dai
- School of Chemical Engineering
- The University of Adelaide
- Adelaide SA5005, Australia
| | - Jingxiu Bi
- School of Chemical Engineering
- The University of Adelaide
- Adelaide SA5005, Australia
| | - Bo Jin
- School of Chemical Engineering
- The University of Adelaide
- Adelaide SA5005, Australia
| | - Hu Zhang
- School of Chemical Engineering
- The University of Adelaide
- Adelaide SA5005, Australia
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36
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Wang Z, Zhang Y, Jiang F, Fang H, Wang Z. Synthesis and characterization of designed cellulose-graft-polyisoprene copolymers. Polym Chem 2014. [DOI: 10.1039/c3py01574b] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Asmarandei I, Fundueanu G, Cristea M, Harabagiu V, Constantin M. Thermo- and pH-sensitive interpenetrating poly(N-isopropylacrylamide)/carboxymethyl pullulan network for drug delivery. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0293-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Kan KHM, Li J, Wijesekera K, Cranston ED. Polymer-Grafted Cellulose Nanocrystals as pH-Responsive Reversible Flocculants. Biomacromolecules 2013; 14:3130-9. [DOI: 10.1021/bm400752k] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Kevin H. M. Kan
- Department
of Chemical Engineering, McMaster University, Hamilton L8S 4L7, Canada
| | - Jian Li
- Department
of Chemical Engineering, McMaster University, Hamilton L8S 4L7, Canada
| | - Kushlani Wijesekera
- Department
of Chemical Engineering, McMaster University, Hamilton L8S 4L7, Canada
| | - Emily D. Cranston
- Department
of Chemical Engineering, McMaster University, Hamilton L8S 4L7, Canada
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39
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Kasgoz H, Ozbas Z, Esen E, Sahin CP, Gurdag G. Removal of copper(II) ions with a thermoresponsive cellulose- g-poly( N-isopropyl acrylamide) copolymer. J Appl Polym Sci 2013. [DOI: 10.1002/app.39527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hasine Kasgoz
- Department of Chemical Engineering; Faculty of Engineering; University of Istanbul; Avcilar Campus 34320; Avcilar-Istanbul; Turkey
| | - Zehra Ozbas
- Department of Chemical Engineering; Faculty of Engineering; University of Istanbul; Avcilar Campus 34320; Avcilar-Istanbul; Turkey
| | - Emine Esen
- Department of Chemical Engineering; Faculty of Engineering; University of Istanbul; Avcilar Campus 34320; Avcilar-Istanbul; Turkey
| | - Canan Puren Sahin
- Department of Chemical Engineering; Faculty of Engineering; University of Istanbul; Avcilar Campus 34320; Avcilar-Istanbul; Turkey
| | - Gulten Gurdag
- Department of Chemical Engineering; Faculty of Engineering; University of Istanbul; Avcilar Campus 34320; Avcilar-Istanbul; Turkey
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40
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Wang J, Zhou X, Xiao H. Structure and properties of cellulose/poly(N-isopropylacrylamide) hydrogels prepared by SIPN strategy. Carbohydr Polym 2013; 94:749-54. [DOI: 10.1016/j.carbpol.2013.01.036] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 12/20/2012] [Accepted: 01/13/2013] [Indexed: 11/26/2022]
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41
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Reza Fareghi A, Najafi Moghaddam P, Akbar Entezami A, Ensafi Avval M. Modification of hydrophilic cellulose fibers by monolayer growth of polystyrene chains using ATRP. IRANIAN POLYMER JOURNAL 2013. [DOI: 10.1007/s13726-013-0135-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Kang H, Liu R, Huang Y. Cellulose derivatives and graft copolymers as blocks for functional materials. POLYM INT 2013. [DOI: 10.1002/pi.4455] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hongliang Kang
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Ruigang Liu
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Yong Huang
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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43
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Zhang Y, Li X, Li H, Gibril ME, Han K, Yu M. Thermal and rheological properties of cellulose-graft-polyacrylamide synthesized by in situ graft copolymerization. RSC Adv 2013. [DOI: 10.1039/c3ra41236a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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44
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Thermoresponsive chitosan/N-isopropylacrylamide copolymer through atom transfer radical polymerization. Int J Biol Macromol 2013; 52:14-9. [DOI: 10.1016/j.ijbiomac.2012.09.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 09/11/2012] [Accepted: 09/25/2012] [Indexed: 11/23/2022]
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45
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Tebaldi ML, Fiel LA, Santos AM, Guterres SS, Pohlmann AR. New Approach to Determine the Phase Transition Temperature, Cloud Point, of Thermoresponsive Polymers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.784171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Erencia M, López-Mesas M, Carrillo-Navarrete F. Thermosensitive fibres of lyocell/poly(N
-isopropylacrylamide): multiparametric analysis for studying the graft copolymerization. POLYM INT 2012. [DOI: 10.1002/pi.4423] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marisa Erencia
- INTEXTER - Universitat Politècnica de Catalunya (UPC); Colom 15 08222 Terrassa Spain
| | - Montserrat López-Mesas
- Centre Grup de Tècniques de Separació en Química (GTS), Química Analítica, Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Fernando Carrillo-Navarrete
- INTEXTER - Universitat Politècnica de Catalunya (UPC); Colom 15 08222 Terrassa Spain
- Departament d'Enginyeria Química; EET - Universitat Politècnica de Catalunya (UPC); Colom 1 08222 Terrassa Spain
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47
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do Nascimento Marques N, Curti PS, da Silva Maia AM, Balaban RDC. Temperature and pH effects on the stability and rheological behavior of the aqueous suspensions of smart polymers based onN-isopropylacrylamide, chitosan, and acrylic acid. J Appl Polym Sci 2012. [DOI: 10.1002/app.38750] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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Hansson S, Trouillet V, Tischer T, Goldmann AS, Carlmark A, Barner-Kowollik C, Malmström E. Grafting Efficiency of Synthetic Polymers onto Biomaterials: A Comparative Study of Grafting-from versus Grafting-to. Biomacromolecules 2012; 14:64-74. [DOI: 10.1021/bm3013132] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susanne Hansson
- Department of Fibre and Polymer
Technology, School of Chemical Science and Engineering, KTH Royal Institute of Technology, Teknikringen 56-58,
SE-100 44 Stockholm, Sweden
| | - Vanessa Trouillet
- Institute for Applied Materials
(IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen,
Germany
| | - Thomas Tischer
- Preparative Macromolecular
Chemistry,
Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - Anja S. Goldmann
- Preparative Macromolecular
Chemistry,
Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - Anna Carlmark
- Department of Fibre and Polymer
Technology, School of Chemical Science and Engineering, KTH Royal Institute of Technology, Teknikringen 56-58,
SE-100 44 Stockholm, Sweden
| | - Christopher Barner-Kowollik
- Preparative Macromolecular
Chemistry,
Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse
18, 76128 Karlsruhe, Germany
| | - Eva Malmström
- Department of Fibre and Polymer
Technology, School of Chemical Science and Engineering, KTH Royal Institute of Technology, Teknikringen 56-58,
SE-100 44 Stockholm, Sweden
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Kang H, Gao X, Liu R, Huang Y. Synthesis and Properties of Cellulose Graft Copolymers with Well-Defined Architecture. ACTA ACUST UNITED AC 2012. [DOI: 10.1021/bk-2012-1107.ch006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Hongliang Kang
- Labortory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Zhongguancun North 1st Street, Beijing 100190, China
- Beijing Centre of Physical and Chemical Analysis, Beijing Academy of Sciences and Technology, 27 North-West 3rd Ring Road, Beijing 100089, China
| | - Xia Gao
- Labortory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Zhongguancun North 1st Street, Beijing 100190, China
- Beijing Centre of Physical and Chemical Analysis, Beijing Academy of Sciences and Technology, 27 North-West 3rd Ring Road, Beijing 100089, China
| | - Ruigang Liu
- Labortory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Zhongguancun North 1st Street, Beijing 100190, China
- Beijing Centre of Physical and Chemical Analysis, Beijing Academy of Sciences and Technology, 27 North-West 3rd Ring Road, Beijing 100089, China
| | - Yong Huang
- Labortory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Zhongguancun North 1st Street, Beijing 100190, China
- Beijing Centre of Physical and Chemical Analysis, Beijing Academy of Sciences and Technology, 27 North-West 3rd Ring Road, Beijing 100089, China
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50
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Shi X, Tan L, Xing J, Cao F, Chen L, Luo Z, Wang Y. Synthesis of hydroxyethylcellulose-g-methoxypoly (ethylene glycol) copolymer and its application for protein separation in CE. J Appl Polym Sci 2012. [DOI: 10.1002/app.38403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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