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Embedded Target Filler and Natural Fibres as Interface Agents in Controlling the Stretchability of New Starch and PVOH-Based Materials for Rethinked Sustainable Packaging. MATERIALS 2022; 15:ma15041377. [PMID: 35207918 PMCID: PMC8874383 DOI: 10.3390/ma15041377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023]
Abstract
A structuring solution converting starch into a multiphase polymeric material was obtained through a melt compounding sequence, which can be irreversibly shaped by thermoforming into rethinked, sustainable packaging, based on the physical modification of starch with polyvinyl alcohol (PVOH), target fillers, (CaCO3 and wood flour), and a good plasticizer compatible with the polar components. Polymeric material can be thermoformed if it can be stretched without breaking in the positive temperature range, have functional properties required by the application, and keep its shape and properties after stretching for more than six months. The properties of the selected quaternary starch-based compound, fulfil the requirements for a thermoformable polymeric material due to the chemical compatibility between the components and the compounding in a selected procedure and optimal conditions wich ensure a comfortable miscibility . Most likely, the obtained miscibility can be explained only by the arrangement of the wood flour at the interface, where it acts as compatibilizer with a main role in structuring the new starch-based materials. The compatibilizer role of the wood flour was proved for the quaternary selected blend by the changing of the thermal degradation mechanism, from one with two stages for binary and tertiary blends, to one consisting of a single stage: decreasing till elimination of morphological defects, the reproducibility of the mechanical properties, stretching without breaking, and dimensional stability after stretching. Future studies will aim to achieve revised packaging for applications that require higher strength properties.
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Jung SY, Hwang H, Jo HS, Choi S, Kim HJ, Kim SE, Park K. Tannylated Calcium Carbonate Materials with Antacid, Anti-Inflammatory, and Antioxidant Effects. Int J Mol Sci 2021; 22:4614. [PMID: 33924775 PMCID: PMC8124724 DOI: 10.3390/ijms22094614] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Calcium carbonate (CaCO3)-based materials have received notable attention for biomedical applications owing to their safety and beneficial characteristics, such as pH sensitivity, carbon dioxide (CO2) gas generation, and antacid properties. Herein, to additionally incorporate antioxidant and anti-inflammatory functions, we prepared tannylated CaCO3 (TA-CaCO3) materials using a simple reaction between tannic acid (TA), calcium (Ca2+), and carbonate (CO32-) ions. TA-CaCO3 synthesized at a molar ratio of 1:75 (TA:calcium chloride (CaCl2)/sodium carbonate (Na2CO3)) showed 3-6 μm particles, comprising small nanoparticles in a size range of 17-41 nm. The TA-CaCO3 materials could efficiently neutralize the acid solution and scavenge free radicals. In addition, these materials could significantly reduce the mRNA levels of pro-inflammatory factors and intracellular reactive oxygen species, and protect chondrocytes from toxic hydrogen peroxide conditions. Thus, in addition to their antacid property, the prepared TA-CaCO3 materials exert excellent antioxidant and anti-inflammatory effects through the introduction of TA molecules. Therefore, TA-CaCO3 materials can potentially be used to treat inflammatory cells or diseases.
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Affiliation(s)
- Sung-Yun Jung
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Heamin Hwang
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Han-Saem Jo
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
| | - Somang Choi
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Hak-Jun Kim
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Sung-Eun Kim
- Department of Orthopedic Surgery and Nano-Based Disease Control Institute, Korea University Guro Hospital, #148, Gurodong-ro, Guro-gu, Seoul 08308, Korea; (S.C.); (H.-J.K.)
| | - Kyeongsoon Park
- Department of Systems Biotechnology, Chung-Ang University, Gyeonggi 17546, Korea; (S.-Y.J.); (H.H.); (H.-S.J.)
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3
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pH-Responsive mineralized nanoparticles for bacteria-triggered topical release of antibiotics. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.11.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Zhao L, Yin S, Ma Z. Ca 2+-Triggered pH-Response Sodium Alginate Hydrogel Precipitation for Amplified Sandwich-Type Impedimetric Immunosensor of Tumor Marker. ACS Sens 2019; 4:450-455. [PMID: 30638376 DOI: 10.1021/acssensors.8b01465] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Signal amplification is of great significance in the ultrasensitive electrochemical impedimetric immunoassays for tumor marker detection. A cascaded signal amplification approach was designed using gold nanoparticle-CaCO3 microspheres (AuNP-CaCO3) to trigger pH-responsive alginate hydrogel precipitation for sandwich-type impedimetric immunosensor. AuNP-CaCO3 exerts a large hindrance effect and can release Ca2+ ions under weak acidic conditions, and thus can serve as a multifunctional label. The hindrance effect of AuNP-CaCO3 can significantly enhance the impedance response as the initial signal amplification. Then, part of CaCO3 dissolves under weak acid conditions and releases Ca2+, which can cross-link with alginate to generate an insoluble alginate hydrogel precipitate on the sensing interface, significantly increasing the impedance signal. The impedance signal can be further amplified by making the hydrogel negatively charged based on the pH-responsive surface charge properties of the alginate hydrogel. Benefiting from the cascaded signal amplification, this impedimetric immunosensor exhibits a linear range from 1.0 fg mL-1 to 100 ng mL-1, an detection limit of 0.09 fg mL-1, and ultrahigh sensitivity of 973.01 Ω (lg(ng mL-1))-1 toward the assay of prostate specific antigen (PSA).
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Affiliation(s)
- Lihua Zhao
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Shuang Yin
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Zhanfang Ma
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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Watanabe S, Kashiwagi R, Matsumoto M. Alternate Spray-coating for the Direct Fabrication of Hydroxyapatite Films without Crystal Growth Step in Solution. J Oleo Sci 2017; 66:279-284. [DOI: 10.5650/jos.ess16142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Satoshi Watanabe
- Department of Applied Chemistry and Biochemistry, Kumamoto University
| | - Rei Kashiwagi
- Department of Materials Science and Technology, Tokyo University of Science
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Shan L, Gong L, Fan H, Ji S, Zhang G. Spray-assisted biomineralization of a superhydrophilic water uptake layer for enhanced pervaporation dehydration. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.09.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Watanabe S, Iida M, Matsumoto M. Alternate Calcification in Microcapillaries for the Fabrication of Hydroxyapatite Films without Light Exposure, Calcination, or Applied Voltage. J Oleo Sci 2016; 65:853-860. [PMID: 27628734 DOI: 10.5650/jos.ess16046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We discuss an alternate method for calcification in microcapillaries for fabricating calcium phosphate films using silicone molds and calcifying solutions. Calcium phosphate films with a line/space of 5-50 µm were fabricated by controlling the concentrations of calcium chloride and sodium phosphate solutions. Plate-type crystals of hydroxyapatite were grown when the calcium phosphate films were immersed in hydroxyapatite precursors. In the initial stage of hydroxyapatite crystal growth, the c-plane of the crystals was grown parallel to the substrates, and subsequently the growth followed with the c-plane growing perpendicular to the substrates. In narrow capillaries, dendritic structures were formed with a tendency to grow in a direction parallel to the direction of the microcapillaries. This technique is useful in the micropatterning of biocompatible ceramics with a minimized material consumption and a short fabrication time.
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Affiliation(s)
- Satoshi Watanabe
- Department of Applied Chemistry and Biochemistry, Kumamoto University
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Ghosh S, Wu V, Pernal S, Uskoković V. Self-Setting Calcium Phosphate Cements with Tunable Antibiotic Release Rates for Advanced Antimicrobial Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7691-708. [PMID: 26958867 PMCID: PMC5002010 DOI: 10.1021/acsami.6b01160] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Osteomyelitis, an infectious disease predominantly tied to poor sanitary conditions in underdeveloped regions of the world, is in need of inexpensive, easily in situ synthesizable and administrable materials for its treatment. The results of this study stem from the attempt to create one such affordable and minimally invasive therapeutic platform in the form of a self-setting, injectable cement with a tunable drug release profile, composed of only nanoparticulate hydroxyapatite, the synthetic version of the bone mineral. Cements comprised two separately synthesized hydroxyapatite powders, one of which, HAP2, was precipitated abruptly, retaining the amorphous nature longer, and the other one of which, HAP1, was precipitated at a slower rate, more rapidly transitioning to the crystalline structure. Cements were made with four different weight ratios of the two hydroxyapatite components: 100/0, 85/15, 50/50, and 0/100 with respect to HAP1 and HAP2. Both the setting and the release rates measured on two different antibiotics, vancomycin and ciprofloxacin, were controlled using the weight ratio of the two hydroxyapatite components. Various inorganic powder properties were formerly used to control drug release, but here we demonstrate for the first time that the kinetics of the mechanism of formation of a solid compound can be controlled to produce tunable drug release profiles. Specifically, it was found that the longer the precursor calcium phosphate component of the cement retains the amorphous nature of the primary precipitate, the more active it was in terms of speeding up the diffusional release of the adsorbed drug. The setting rate was, in contrast, inversely proportional to the release rate and to the content of this active hydroxyapatite component, HAP2. The empirical release profiles were fitted to a set of equations that could be used to tune the release rate to the therapeutic occasion. All of the cements loaded with vancomycin or ciprofloxacin inhibited the growth of Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli and Pseudomonas aeruginosa in both agar diffusion assays and broth dilution tests with intensities either comparable to the antibiotic per se, as in the case of ciprofloxacin, or even larger than the antibiotic alone, as in the case of vancomycin. Interestingly, even the pure cements exhibited an antibacterial effect ranging from moderate to strong, while demonstrating high levels of biocompatibility with osteoclastic RAW264.7 cells and only slightly affecting the viability of the osteoblastic MC3T3-E1 cells, in direct proportion with the amount of the more active hydroxyapatite component in the cements. This antibacterial effect was especially noticeable against Gram-negative bacteria, where the growth inhibition by the cements was comparable to or even stronger than that of the pure antibiotics. The antibiofilm assay against P. aeruginosa biofilms reiterated the antibiotic effectiveness of pure, antibiotic-free cements. That the carrier per se, composed of a nontoxic, easily prepared, bone mineral composite, can exhibit a strong antibacterial effect even in the absence of an antibiotic drug is an insight highly relevant in view of the rising resistance of an array of pathogens to traditional antibiotic therapies and the demands for the timely development of suitable alternatives.
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Affiliation(s)
- Shreya Ghosh
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Victoria Wu
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Sebastian Pernal
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
| | - Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, Illinois 60607, United States
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Park DJ, Min KH, Lee HJ, Kim K, Kwon IC, Jeong SY, Lee SC. Photosensitizer-loaded bubble-generating mineralized nanoparticles for ultrasound imaging and photodynamic therapy. J Mater Chem B 2016; 4:1219-1227. [PMID: 32262977 DOI: 10.1039/c5tb02338f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we have developed photosensitizer-loaded bubble-generating calcium carbonate (CaCO3)-mineralized nanoparticles that have potential for ultrasound imaging (US)-guided photodynamic therapy (PDT) of tumors. A photosensitizer, chlorin e6 (Ce6)-loaded CaCO3-mineralized nanoparticles (Ce6-BMNs), was prepared using an anionic block copolymer-templated in situ mineralization method. Ce6-BMNs were composed of the Ce6-loaded CaCO3 core and the hydrated poly(ethylene glycol) (PEG) shell. Ce6-BMNs exhibited excellent stability under serum conditions. Ce6-BMNs showed enhanced echogenic US signals at tumoral acid pH by generating carbon dioxide (CO2) bubbles. Ce6-BMNs effectively inhibited Ce6 release at physiological pH (7.4). At a tumoral acidic pH (6.4), Ce6 release was accelerated with CO2 bubble generation due to the dissolution of the CaCO3 mineral core. Upon irradiation of Ce6-BMN-treated MCF-7 breast cancer cells, the cell viability dramatically decreased with increasing Ce6 concentration. The phototoxicity of the Ce6-BMNs was much higher than that of free Ce6. On the basis of tumoral pH-responsive CO2 bubble-generation and simultaneous Ce6 release at the target tumor site, these CaCO3 mineralized nanoparticles can be considered as promising theranostic nanoparticles for US imaging-guided PDT in the field of tumor therapy.
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Affiliation(s)
- Dong Jin Park
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea
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Amiryousefi MR, Mohebbi M, Golmohammadzadeh S, Koocheki A. Encapsulation of caffeine in hydrogel colloidosome: optimization of fabrication, characterization and release kinetics evaluation. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3297] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Reza Amiryousefi
- Department of Food Science and Technology; Faculty of Agriculture, Ferdowsi University of Mashhad (FUM); P.O. Box: 91775-1163 Mashhad Iran
| | - Mohebbat Mohebbi
- Department of Food Science and Technology; Faculty of Agriculture, Ferdowsi University of Mashhad (FUM); P.O. Box: 91775-1163 Mashhad Iran
| | - Shiva Golmohammadzadeh
- Nanotechnology Research Center; School of Pharmacy, Mashhad University of Medical Sciences; Mashhad Iran
| | - Arash Koocheki
- Department of Food Science and Technology; Faculty of Agriculture, Ferdowsi University of Mashhad (FUM); P.O. Box: 91775-1163 Mashhad Iran
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11
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Li WM, Chiang CS, Huang WC, Su CW, Chiang MY, Chen JY, Chen SY. Amifostine-conjugated pH-sensitive calcium phosphate-covered magnetic-amphiphilic gelatin nanoparticles for controlled intracellular dual drug release for dual-targeting in HER-2-overexpressing breast cancer. J Control Release 2015; 220:107-118. [PMID: 26478017 DOI: 10.1016/j.jconrel.2015.10.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 10/01/2015] [Accepted: 10/13/2015] [Indexed: 01/10/2023]
Abstract
We developed a surfactant-free method utilizing amifostine to stably link a targeting ligand (Herceptin) to amphiphilic gelatin (AG)-iron oxide@calcium phosphate (CaP) nanoparticles with hydrophobic curcumin (CUR) and hydrophilic doxorubicin (DOX) encapsulated in the AG core and CaP shell (AGIO@CaP-CD), respectively. This multi-functional nanoparticle system has a pH-sensitive CaP shell and degradable amphiphilic gelatin (AG) core, which enables controllable sequential release of the two drugs. The dual-targeting system of AGIO@CaP-CD (HER-AGIO@CaP-CD) with a bioligand and magnetic targeting resulted in significantly elevated cellular uptake in HER2-overexpressing SKBr3 cells and more efficacious therapy than delivery of targeting ligand alone due to the synergistic cell multi-drug resistance/apoptosis-inducing effect of the CUR and DOX combination. This nanoparticle combined with Herceptin and iron oxide nanoparticles not only provided a dual-targeting functionality, but also encapsulated CUR and DOX as a dual-drug delivery system for the combination therapy. This study further demonstrated that the therapeutic efficacy of this dual-targeting co-delivery system can be improved by modifying the application duration of magnetic targeting, which makes this combination therapy system a powerful new tool for in vitro/in vivo cancer therapy, especially for HER2-positive cancers.
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Affiliation(s)
- Wei-Ming Li
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chih-Sheng Chiang
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Wei-Chen Huang
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chia-Wei Su
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Min-Yu Chiang
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Jian-Yi Chen
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - San-Yuan Chen
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
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12
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Watanabe S, Hayashi F, Matsumoto M. Hydrogel-free alternate soaking technique for micropatterning of bioactive ceramics on wettability-patterned substrates around room temperature. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Doroftei F, Mihai M, Sacarescu L, Fundueanu G, Simionescu BC. Composite materials based on poly(N-isopropylacrylamide-co-methacrylic acid) hydrogels and calcium carbonate. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008315584175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The synthesis of complex functional materials with thermo- and pH-sensitive tunable properties based on poly( N-isopropylacrylamide- co-methacrylic acid) hydrogels with different porosities and pH-sensitive and biocompatible calcium carbonate (CaCO3) was investigated. To control the composites characteristics, two hydrogles with the same chemical composition but different porosities were used, as well as different methods for crystal growth, namely, the adding protocol of inorganic partners (rapid mixing or alternate dipping) or the carbonate source. The morphology of the new composites was investigated by scanning electron microscopy and the polymorphs content by Fourier transform infrared spectroscopy, as compared to unmodified hydrogels. Information on the interface between organic/inorganic materials, the radii of gyration of the scattering objects, their fractal dimension, and CaCO3 porosity characteristics were obtained by small-angle X-ray scattering.
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Affiliation(s)
- Florica Doroftei
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
- Babes-Bolyai University, Cluj-Napoca, Romania
| | - Marcela Mihai
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Liviu Sacarescu
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Gheorghe Fundueanu
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Bogdan C. Simionescu
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
- Department of Natural and Synthetic Polymers, “Gh. Asachi” Technical University of Iasi, Iasi, Romania
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Biomineral/Agarose Composite Gels Enhance Proliferation of Mesenchymal Stem Cells with Osteogenic Capability. Int J Mol Sci 2015; 16:14245-58. [PMID: 26110392 PMCID: PMC4490550 DOI: 10.3390/ijms160614245] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 06/10/2015] [Accepted: 06/16/2015] [Indexed: 12/02/2022] Open
Abstract
Hydroxyapatite (HA) or calcium carbonate (CaCO3) formed on an organic polymer of agarose gel is a biomaterial that can be used for bone tissue regeneration. However, in critical bone defects, the regeneration capability of these materials is limited. Mesenchymal stem cells (MSCs) are multipotent cells that can differentiate into bone forming osteoblasts. In this study, we loaded MSCs on HA- or CaCO3-formed agarose gel and cultured them with dexamethasone, which triggers the osteogenic differentiation of MSCs. High alkaline phosphatase activity was detected on both the HA- and CaCO3-formed agarose gels; however, basal activity was only detected on bare agarose gel. Bone-specific osteocalcin content was detected on CaCO3-formed agarose gel on Day 14 of culture, and levels subsequently increased over time. Similar osteocalcin content was detected on HA-formed agarose on Day 21 and levels increased on Day 28. In contrast, only small amounts of osteocalcin were found on bare agarose gel. Consequently, osteogenic capability of MSCs was enhanced on CaCO3-formed agarose at an early stage, and both HA- and CaCO3-formed agarose gels well supported the capability at a later stage. Therefore, MSCs loaded on either HA- or CaCO3-formed agarose could potentially be employed for the repair of critical bone defects.
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Jung H, Kim SA, Yang YG, Yoo H, Lim SJ, Mok H. Long chain microRNA conjugates in calcium phosphate nanoparticles for efficient formulation and delivery. Arch Pharm Res 2014; 38:705-15. [PMID: 25052958 DOI: 10.1007/s12272-014-0451-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 07/09/2014] [Indexed: 01/20/2023]
Abstract
A long chain microRNA-34a conjugate (lc-miRNA) was prepared by chemical crosslinking in order to improve entrapment efficiency into calcium phosphate nanoparticles (CaPs) and intracellular delivery. Thiol-modified miRNA at both terminal ends was chemically conjugated using crosslinkers to form lc-miRNA which was encapsulated within CaPs by a conventional co-precipitation method. Encapsulation efficiencies, physicochemical properties, and in vitro intracellular delivery efficiencies of the prepared linear polyethyleneimine (LPEI)-coated CaPs (LPEI-CaP) containing common miRNA and lc-miRNA were comparatively evaluated. The prepared lc-miRNA exhibited noticeably enhanced encapsulation efficiency during the CaP formulation process when compared to common miRNA. LPEI-CaP/lc-miRNAs consisted of nano-sized particles with great homogeneity and were observed to be successfully delivered into PC-3 cells. Fabricated LPEI-CaPs with duplex form of lc-miRNA (lc-miRNA-d) suppressed cancer cell proliferation as well as migration much more efficiently than those with duplex form of miRNA (miRNA-d). In addition, LPEI-CaP/lc-miRNA-d conferred negligible cytotoxicity on PC-3 cells. Chemical crosslinking of therapeutic miRNAs via a reducible linkage may allow more efficient encapsulation within CaPs as well as homogeneous particle formulation due to a higher spatial charge density than common miRNAs. The well-formulated LPEI-CaPs with lc-miRNA-d have the potential to provide superior miRNA transfection efficiency and inhibition of cancer proliferation.
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Affiliation(s)
- Hyosook Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
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16
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Zhou H, Shi T, Zhou X. Poly (vinyl alcohol)/SiO2composite microsphere based on Pickering emulsion and its application in controlled drug release. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:641-56. [DOI: 10.1080/09205063.2014.890919] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Block copolymer-templated mineralization for pH-responsive robust nanocarriers of 5-fluorouracil. Macromol Res 2013. [DOI: 10.1007/s13233-014-2042-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Mineralized polyacrylonitrile-based ultrafiltration membranes with improved water flux and rejection towards dye. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.02.054] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Ma MG, Fu LH, Sun RC, Jia N. Compared study on the cellulose/CaCO3 composites via microwave-assisted method using different cellulose types. Carbohydr Polym 2012; 90:309-15. [DOI: 10.1016/j.carbpol.2012.05.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 05/05/2012] [Accepted: 05/15/2012] [Indexed: 10/28/2022]
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Min KH, Lee HJ, Kim K, Kwon IC, Jeong SY, Lee SC. The tumor accumulation and therapeutic efficacy of doxorubicin carried in calcium phosphate-reinforced polymer nanoparticles. Biomaterials 2012; 33:5788-97. [DOI: 10.1016/j.biomaterials.2012.04.057] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 04/23/2012] [Indexed: 02/07/2023]
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21
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Jia N, Li SM, Ma MG, Sun RC, Zhu JF. Hydrothermal fabrication, characterization, and biological activity of cellulose/CaCO3 bionanocomposites. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2011.11.086] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Mizuta N, Hattori K, Suzawa Y, Iwai S, Matsumoto T, Tadokoro M, Nakano T, Akashi M, Ohgushi H, Yura Y. Mesenchymal stromal cells improve the osteogenic capabilities of mineralized agarose gels in a rat full-thickness cranial defect model. J Tissue Eng Regen Med 2012; 7:51-60. [DOI: 10.1002/term.495] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 03/29/2011] [Accepted: 07/12/2011] [Indexed: 11/10/2022]
Affiliation(s)
| | - Koji Hattori
- Research Institute for Cell Engineering; National Institute of Advanced Industrial Science and Technology; Amagasaki Site, 3-11-46 Nakoji; Amagasaki; Hyogo; 661-0974; Japan
| | - Yoshika Suzawa
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry; Osaka University; 1-8 Yamadaoka, Suita; Osaka; 565-0871; Japan
| | - Soichi Iwai
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry; Osaka University; 1-8 Yamadaoka, Suita; Osaka; 565-0871; Japan
| | - Tomohiro Matsumoto
- Research Institute for Cell Engineering; National Institute of Advanced Industrial Science and Technology; Amagasaki Site, 3-11-46 Nakoji; Amagasaki; Hyogo; 661-0974; Japan
| | - Mika Tadokoro
- Research Institute for Cell Engineering; National Institute of Advanced Industrial Science and Technology; Amagasaki Site, 3-11-46 Nakoji; Amagasaki; Hyogo; 661-0974; Japan
| | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering; Osaka University; 2-1 Yamadaoka; Suita; Osaka; 565-0871; Japan
| | - Mitsuru Akashi
- Division of Applied Chemistry, Graduate School of Engineering; Osaka University; 2-1 Yamadaoka; Suita; Osaka; 565-0871; Japan
| | - Hajime Ohgushi
- Research Institute for Cell Engineering; National Institute of Advanced Industrial Science and Technology; Amagasaki Site, 3-11-46 Nakoji; Amagasaki; Hyogo; 661-0974; Japan
| | - Yoshiaki Yura
- Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry; Osaka University; 1-8 Yamadaoka, Suita; Osaka; 565-0871; Japan
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23
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Taneja A, Singh H. Challenges for the delivery of long-chain n-3 fatty acids in functional foods. Annu Rev Food Sci Technol 2012; 3:105-23. [PMID: 22224555 DOI: 10.1146/annurev-food-022811-101130] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Extensive research has shown that increased consumption of long-chain omega-3 polyunsaturated fatty acids (n-3 LCPUFAs), namely α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), may lower the risk of chronic diseases, such as heart disease, cancer, and arthritis. Given that Western diets are deficient in n-3 LCPUFAs, enrichment of food products is seen as an alternative for increasing the intake of these fatty acids. However, because of the high instability of these fatty acids to oxidative deterioration, enrichment of foods with n-3 LCPUFAs has been technically challenging. This review provides an overview of different technical approaches that have been taken to overcome oxidation-related problems. This review also looks at the challenges faced by health organizations, food manufacturers, and food scientists for the delivery of long-chain n-3 fatty acids in functional foods.
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Affiliation(s)
- Amit Taneja
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand.
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24
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Ukrainczyk M, Gredičak M, Jerić I, Kralj D. Interactions of salicylic acid derivatives with calcite crystals. J Colloid Interface Sci 2012; 365:296-307. [DOI: 10.1016/j.jcis.2011.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/05/2011] [Accepted: 09/07/2011] [Indexed: 10/17/2022]
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25
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Liu H, Wang C, Gao Q, Liu X, Tong Z. Magnetic hydrogels with supracolloidal structures prepared by suspension polymerization stabilized by Fe(2)O(3) nanoparticles. Acta Biomater 2010; 6:275-81. [PMID: 19531384 DOI: 10.1016/j.actbio.2009.06.018] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Revised: 06/08/2009] [Accepted: 06/10/2009] [Indexed: 11/30/2022]
Abstract
Magnetic hydrogels with supracolloidal structures were fabricated by suspension polymerization of N-isopropylacrylamide (NIPAm) and/or acrylamide (Am) stabilized by Fe(2)O(3) nanoparticles. Fe(2)O(3) nanoparticles can self-assemble at liquid-liquid interfaces to form stable water in oil Pickering emulsion droplets. Monomers dissolved in suspended aqueous droplets were subsequently polymerized at 60 degrees C. When NIPAm was homopolymerized the PNIPAm produced deposited from the interior water phase onto the interface to form Fe(2)O(3)/PNIPAm nanocomposite shells because of its hydrophobicity at the reaction temperature. Magnetic and thermosensitive hollow microcapsules were obtained. When Am was homopolymerized magnetic core-shell microcapsules with PAm hydrogel cores and Fe(2)O(3) nanoparticle shells were obtained. When NIPAm and Am were co-polymerized, magnetic hydrogel microcapsules with two kinds of supracolloidal structures were obtained varying with the NIPAm/Am ratio. These microcapsule beads may find applications as delivery vehicles for biomolecules, drugs, cosmetics, food supplements and living cells. Suspension polymerization based on Pickering emulsion droplets opens up a new route to synthesize a variety of hybrid hydrogels with supracolloidal structures.
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Affiliation(s)
- Hongxia Liu
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
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26
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Abu-Rabeah K, Niţă I, Tencaliec A, Marks R. New approach of constructing biosensing matrices by physical and chemical crosslinking of biotin-alginate with alginate-pyrrole. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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Liu H, Wang C, Gao Q, Chen J, Ren B, Liu X, Tong Z. Facile fabrication of well-defined hydrogel beads with magnetic nanocomposite shells. Int J Pharm 2009; 376:92-8. [DOI: 10.1016/j.ijpharm.2009.04.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Revised: 04/21/2009] [Accepted: 04/22/2009] [Indexed: 11/25/2022]
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28
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Jao WC, Chen HC, Lin CH, Yang MC. The controlled release behavior and pH- and thermo-sensitivity of alginate/poly(vinyl alcohol) blended hydrogels. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.1318] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Braga ME, Pato MTV, Silva HSC, Ferreira EI, Gil MH, Duarte CM, de Sousa HC. Supercritical solvent impregnation of ophthalmic drugs on chitosan derivatives. J Supercrit Fluids 2008. [DOI: 10.1016/j.supflu.2007.10.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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WATANABE J, AKASHI M. Nano-Hybrid Material Formation on Polymer Materials by Versatile Inorganic Coatings and Its Biomaterial Function. KOBUNSHI RONBUNSHU 2008. [DOI: 10.1295/koron.65.387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Watanabe J, Akashi M. Formation of Hydroxyapatite Provides a Tunable Protein Reservoir within Porous Polyester Membranes by an Improved Soaking Process. Biomacromolecules 2007; 8:2288-93. [PMID: 17547456 DOI: 10.1021/bm0702915] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biomineralization on porous polyester membranes was examined using an improved alternate soaking process (ASP). The effect of ion migration for the formation of hydroxyapatite (HAp) was shown to be crucial. Ion migration was improved by reducing the surface tension by mixing ethanol into an aqueous solution. The resulting hybrid materials were evaluated in terms of calcium content; structure using scanning electron microscopy (SEM), X-ray diffraction (XRD), and infrared spectroscopy (IR); and protein adsorption. The amount of formed HAp was controlled by the number of ASP cycles and also through the ethanol content of the mixed solvent. As the formation of HAp increased, the formed structure could be verified using SEM, IR, and XRD. Protein adsorption was investigated using albumin, gamma-globulin, and fibrinogen, and the amount of adsorbed protein was well-correlated with that of the formed HAp. This result shows that the total amount of the adsorbed proteins can be regulated by the HAp content. In summary, a tunable protein reservoir was formed on a porous polyester membrane.
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Affiliation(s)
- Junji Watanabe
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, Japan
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32
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Wang H, Wang Z, Zhu B. Preparation and properties of new non-loading and superhigh ammonium nitrate loading hydrogels. REACT FUNCT POLYM 2007. [DOI: 10.1016/j.reactfunctpolym.2006.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Patil SD, Papadmitrakopoulos F, Burgess DJ. Concurrent delivery of dexamethasone and VEGF for localized inflammation control and angiogenesis. J Control Release 2007; 117:68-79. [PMID: 17169457 DOI: 10.1016/j.jconrel.2006.10.013] [Citation(s) in RCA: 161] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2006] [Revised: 09/21/2006] [Accepted: 10/03/2006] [Indexed: 10/24/2022]
Abstract
Localized elution of corticosteroids has been used in suppressing inflammation and fibrosis associated with implantation and continuous in vivo residence of bio-medical devices. However, these agents also inhibit endogenous growth factors preventing angiogenesis at the local tissue, interface thereby delaying the healing process and negatively impacting device performance. In this work, a combination of dexamethasone and vascular endothelial growth factor (VEGF) was investigated for concurrent localized delivery using PLGA microsphere/PVA hydrogel composites. Pharmacodynamic effects were evaluated by histopathological examination of subcutaneous tissue surrounding implanted composites using a rat model. The hydrogel composites were capable of simultaneously releasing VEGF and dexamethasone with approximately zero order kinetics. Composites were successful in controlling the implant/tissue interface by suppressing inflammation and fibrosis as well as facilitating neo-angiogenesis at a fraction of their typical oral or i.v. bolus doses. Implants containing VEGF showed a significantly higher number of mature blood vessels at the end of the 4 week study irrespective of the presence of dexamethasone. Thus, localized concurrent elution of VEGF and dexamethasone can overcome the anti-angiogenic effects of the corticosteroid and can be used to engineer inflammation-free and well-vascularized tissue in the vicinity of the implant. These PLGA microsphere/PVA hydrogel composites show promise as coatings for implantable bio-medical devices to improve biocompatibility and ensure in vivo performance.
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Affiliation(s)
- Siddhesh D Patil
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, United States
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Sakamoto T, Oichi A, Sugawara A, Kato T. Self-organization of Patterned CaCO3/Polymer Composite Films: Tuning of Their Morphologies by the Change of Molecular Weights of Acidic Polymers. CHEM LETT 2006. [DOI: 10.1246/cl.2006.310] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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