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Kordas G. Nanocontainers Against Biofouling and Corrosion Degradation of Materials: A Short Review With Prospects. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.813908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The current state of the art in active corrosion prevention is based on the use of macromolecular containers that can store and release corrosion inhibitors particularly to the surface when corrosion develops. These corrosion inhibitor-containing nano- or microcontainers are subsequently infused into coatings, allowing them to self-heal. Especially, nanocontainers for self-healing coatings with controlled corrosion inhibitors, energy storage, cement fracture repair, and antifouling metal protection have recently been developed. Incorporating these nanocontainers into materials in small amounts (e.g., 5–10 wt% in paints) provided anticorrosion protection that was incomparably better than the current approaches. Furthermore, the materials developed had multifunctional properties, including self-healing, antibacterial, and antimicrobial properties. The primary goal of this review was to compile the different research studies that have been published in a variety of publications so that the reader may better understand the potential of these new types of nanotechnology and the prospects for nanocontainers.
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Wang Z, Zhai X, Fan M, Tan H, Chen Y. Thermal-reversible and self-healing hydrogel containing magnetic microspheres derived from natural polysaccharides for drug delivery. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110644] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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3
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Wang J, Wang X, Li Y, Si H, Chen C, Wang J, Long Z, Nandakumar K. Preparation and properties of magnetic polymer microspheres. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Theodosiou M, Boukos N, Sakellis E, Zachariadis M, Efthimiadou EK. Gold nanoparticle decorated pH-sensitive polymeric nanocontainers as a potential theranostic agent. Colloids Surf B Biointerfaces 2019; 183:110420. [DOI: 10.1016/j.colsurfb.2019.110420] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 07/29/2019] [Accepted: 08/02/2019] [Indexed: 01/06/2023]
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Jahangirian H, Kalantari K, Izadiyan Z, Rafiee-Moghaddam R, Shameli K, Webster TJ. A review of small molecules and drug delivery applications using gold and iron nanoparticles. Int J Nanomedicine 2019; 14:1633-1657. [PMID: 30880970 PMCID: PMC6417854 DOI: 10.2147/ijn.s184723] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Conventional cancer treatment techniques show several limitations including low or no specificity and consequently a low efficacy in discriminating between cancer cells and healthy cells. Recent nanotechnology developments have introduced smart and novel therapeutic nanomaterials that take advantage of various targeting approaches. The use of nanotechnology in medicine and, more specifically, drug delivery is set to spread even more rapidly than it has over the past two decades. Currently, many nanoparticles (NPs) are under investigation for drug delivery including those for cancer therapy. Targeted nanomaterials bind selectively to cancer cells and greatly affect them with only a minor effect on healthy cells. Gold nanoparticles (Au-NPs), specifically, have been identified as significant candidates for new cancer therapeutic modalities because of their biocompatibility, easy functionalization and fabrication, optical tunable characteristics, and chemophysical stability. In the last decade, there has been significant research on Au-NPs and their biomedical applications. Functionalized Au-NPs represent highly attractive and promising candidates for drug delivery, owing to their unique dimensions, tunable surface functionalities, and controllable drug release. Further, iron oxide NPs due to their "superparamagnetic" properties have been studied and have demonstrated successful employment in numerous applications. In targeted drug delivery systems, drug-loaded iron oxide NPs can accumulate at the tumor site with the aid of an external magnetic field. This can lead to incremental effectiveness in drug release to the tumor site and vanquish cancer cells without harming healthy cells. In order for the application of iron oxide NPs in the human body to be realized, they should be biodegradable and biocompatible to minimize toxicity. This review illustrates recent advances in the field drug and small molecule delivery such as fluorouracil, folic acid, doxorubicin, paclitaxel, and daunorubicin, specifically when using gold and iron oxide NPs as carriers of anticancer therapeutic agents.
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Affiliation(s)
- Hossein Jahangirian
- Department of Chemical Engineering, 313 Snell Engineering Center, Northeastern University, Boston, MA, USA,
| | - Katayoon Kalantari
- Centre of Advanced Materials (CAM), Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Zahra Izadiyan
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Roshanak Rafiee-Moghaddam
- Department of Chemical Engineering, 313 Snell Engineering Center, Northeastern University, Boston, MA, USA,
| | - Kamyar Shameli
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Thomas J Webster
- Department of Chemical Engineering, 313 Snell Engineering Center, Northeastern University, Boston, MA, USA,
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6
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Toniolo G, Louka M, Menounou G, Fantoni NZ, Mitrikas G, Efthimiadou EK, Masi A, Bortolotti M, Polito L, Bolognesi A, Kellett A, Ferreri C, Chatgilialoglu C. [Cu(TPMA)(Phen)](ClO 4) 2: Metallodrug Nanocontainer Delivery and Membrane Lipidomics of a Neuroblastoma Cell Line Coupled with a Liposome Biomimetic Model Focusing on Fatty Acid Reactivity. ACS OMEGA 2018; 3:15952-15965. [PMID: 30556020 PMCID: PMC6288809 DOI: 10.1021/acsomega.8b02526] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
The use of copper complexes for redox and oxidative-based mechanisms in therapeutic strategies is an important field of multidisciplinary research. Here, a novel Cu(II) complex [Cu(TPMA)(Phen)](ClO4)2 (Cu-TPMA-Phen, where TPMA = tris-(2-pyridylmethyl)amine and Phen = 1,10-phenanthroline) was studied using both the free and encapsulated forms. A hollow pH-sensitive drug-delivery system was synthesized, characterized, and used to encapsulate and release the copper complex, thus allowing for the comparison with the free drug. The human neuroblastoma-derived cell line NB100 was treated with 5 μM Cu-PMA-Phen for 24 h, pointing to the consequences on mono- and polyunsaturated fatty acids (MUFA and PUFA) present in the membrane lipidome, coupled with cell viability and death pathways (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium viability assay, flow cytometry, microscopy, caspase activation). In parallel, the Cu-TPMA-Phen reactivity with the fatty acid moieties of phospholipids was studied using the liposome model to work in a biomimetic environment. The main results concerned: (i) the membrane lipidome in treated cells, involving remodeling with a specific increase of saturated fatty acids (SFAs) and a decrease of MUFA, but not PUFA; (ii) cytotoxic events and lipidome changes did not occur for the encapsulated Cu-TPMA-Phen, showing the influence of such nanocarriers on drug activity; and (iii) the liposome behavior confirmed that MUFA and PUFA fatty acid moieties in membranes are not affected by oxidative and isomerization reactions, proving the different reactivities of thiyl radicals generated from amphiphilic and hydrophilic thiols and Cu-TPMA-Phen. This study gives preliminary but important elements of copper(II) complex reactivity in cellular and biomimetic models, pointing mainly to the effects on membrane reactivity and remodeling based on the balance between SFA and MUFA in cell membranes that are subjects of strong interest for chemotherapeutic activities as well as connected to nutritional strategies.
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Affiliation(s)
- Gianluca Toniolo
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
- Institute
of Nanoscience and Nanotechnology, N.C.S.R. “Demokritos”, 15310 Agia Paraskevi
Attikis, Greece
| | - Maria Louka
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
- Laboratory
of Lipidomics, Lipinutragen Srl, Via Piero Gobetti 101, 40129 Bologna, Italy
- Department
of Experimental, Diagnostic and Specialty Medicine-DIMES, Alma Mater
Studiorum, University of Bologna, Via San Giacomo 14, 40126 Bologna, Italy
| | - Georgia Menounou
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Nicolò Zuin Fantoni
- School
of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - George Mitrikas
- Institute
of Nanoscience and Nanotechnology, N.C.S.R. “Demokritos”, 15310 Agia Paraskevi
Attikis, Greece
| | - Eleni K. Efthimiadou
- Institute
of Nanoscience and Nanotechnology, N.C.S.R. “Demokritos”, 15310 Agia Paraskevi
Attikis, Greece
| | - Annalisa Masi
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Massimo Bortolotti
- Department
of Experimental, Diagnostic and Specialty Medicine-DIMES, Alma Mater
Studiorum, University of Bologna, Via San Giacomo 14, 40126 Bologna, Italy
| | - Letizia Polito
- Department
of Experimental, Diagnostic and Specialty Medicine-DIMES, Alma Mater
Studiorum, University of Bologna, Via San Giacomo 14, 40126 Bologna, Italy
| | - Andrea Bolognesi
- Department
of Experimental, Diagnostic and Specialty Medicine-DIMES, Alma Mater
Studiorum, University of Bologna, Via San Giacomo 14, 40126 Bologna, Italy
| | - Andrew Kellett
- School
of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Carla Ferreri
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
- Laboratory
of Lipidomics, Lipinutragen Srl, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Chryssostomos Chatgilialoglu
- ISOF,
Consiglio Nazionale delle Ricerche, Via Piero Gobetti 101, 40129 Bologna, Italy
- Institute
of Nanoscience and Nanotechnology, N.C.S.R. “Demokritos”, 15310 Agia Paraskevi
Attikis, Greece
- Laboratory
of Lipidomics, Lipinutragen Srl, Via Piero Gobetti 101, 40129 Bologna, Italy
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7
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Qi X, Wei W, Li J, Liu Y, Hu X, Zhang J, Bi L, Dong W. Fabrication and Characterization of a Novel Anticancer Drug Delivery System: Salecan/Poly(methacrylic acid) Semi-interpenetrating Polymer Network Hydrogel. ACS Biomater Sci Eng 2015; 1:1287-1299. [PMID: 33429676 DOI: 10.1021/acsbiomaterials.5b00346] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Salecan is a novel linear extracellular polysaccharide with a linear backbone of 1-3-linked glucopyranosyl units. Salecan is suitable for preparing hydrogels for biomedical applications due to its prominent physicochemical and biological profiles. In this contribution, a variety of innovative semi-interpenetrating polymer network (semi-IPN) hydrogels consisting of Salecan and poly(methacrylic acid) (PMAA) were developed via free radical polymerization for controlled drug delivery. The successful fabrication of the semi-IPNs was verified by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and thermogravimetric (TGA) measurements. Scanning electron microscopy (SEM) and rheology analyses demonstrated that the morphological and mechanical behaviors of the resultant hydrogels were strongly affected by the contents of Salecan and cross-linker N,N'-methylenebis(acrylamide) (BIS). Moreover, the swelling properties of these hydrogels were systematically investigated, and the results indicated that they exhibited pH sensitivity. The drug delivery applications of such fabricated hydrogels were further evaluated from which doxorubicin (Dox) was chosen as a model drug for in vitro release and cell viability studies. It was found that the Dox release from the Dox-loaded hydrogels was significantly accelerated when the pH of the release media decreased from 7.4 to 5.0. Toxicity assays confirmed that the blank hydrogels had negligible toxicity to normal cells, whereas the Dox-loaded hydrogels remained high in cytotoxicity for A549 and HepG2 cancer cells. All of these attributes implied that the new proposed semi-IPNs serve as potential drug delivery platforms for cancer therapy.
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Affiliation(s)
- Xiaoliang Qi
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Wei Wei
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Junjian Li
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Yucheng Liu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Xinyu Hu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Lirong Bi
- The First Bethune Hospital of Jilin University, ChangChun 130000, China
| | - Wei Dong
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
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8
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Liu YM, Wu W, Ju XJ, Wang W, Xie R, Mou CL, Zheng WC, Liu Z, Chu LY. Smart microcapsules for direction-specific burst release of hydrophobic drugs. RSC Adv 2014. [DOI: 10.1039/c4ra09174d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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9
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Krishnakumar S, Gopidas KR. Organic nanoparticles composed of Fréchet-type dendrons: synthesis, characterization, self-assembly and reversible guest encapsulation. J Mater Chem B 2014; 2:5576-5584. [PMID: 32262191 DOI: 10.1039/c4tb00769g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Novel organic nanoparticles composed of Fréchet-type dendrons have been synthesized by a simple one-pot reaction, which involved etching off the gold core in a first generation gold nanoparticle-cored dendrimer (AuG1). Dissolution of the Au core leads to the generation of numerous dendron radicals in a small volume, which underwent very fast coupling and addition reactions to form the Fréchet-type dendron nanoparticles (FDNs). The FDNs were found to be nearly monodispersed with an average size of 3 nm. NMR, TEM and MALDI-TOF analysis suggested that the FDNs are extremely dense organic structures made up of Fréchet-type dendrons. Although the FDNs do not contain any self-assembling motifs, such as hydrogen bonding moieties, they exhibited time and concentration dependent morphological transformations, leading to the formation of larger spherical aggregates and fibrous networks. Morphological transformations were probed using TEM, AFM and DLS studies. The self-assembly was found to be reversible. The morphological transformation of FDNs was exploited for the encapsulation and on-demand release of guest molecules.
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Affiliation(s)
- Sreedevi Krishnakumar
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research (CSIR), Trivandrum-695019, India.
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10
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Efthimiadou EK, Tapeinos C, Tziveleka LA, Boukos N, Kordas G. pH- and thermo-responsive microcontainers as potential drug delivery systems: Morphological characteristic, release and cytotoxicity studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 37:271-7. [DOI: 10.1016/j.msec.2014.01.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/13/2013] [Accepted: 01/10/2014] [Indexed: 01/01/2023]
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11
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Efthimiadou EK, Tapeinos C, Chatzipavlidis A, Boukos N, Fragogeorgi E, Palamaris L, Loudos G, Kordas G. Dynamic in vivo imaging of dual-triggered microspheres for sustained release applications: synthesis, characterization and cytotoxicity study. Int J Pharm 2013; 461:54-63. [PMID: 24286923 DOI: 10.1016/j.ijpharm.2013.11.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/13/2013] [Accepted: 11/18/2013] [Indexed: 12/25/2022]
Abstract
This paper deals with the synthesis, characterization and property evaluation of drug-loaded magnetic microspheres with pH-responsive cross-linked polymer shell. The synthetic procedure consists of 3 steps, of which the first two comprise the synthesis of a poly methyl methacrylate (PMMA) template and the synthesis of a shell by using acrylic acid (AA) and methyl methacrylate (MMA) as monomers, and divinyl benzene (DVB) as cross-linker. The third step of the procedure refers to the formation of magnetic nanoparticles on the microsphere's surface. AA that attaches pH-sensitivity in the microspheres and magnetic nanoparticles in the inner and the outer surface of the microspheres, enhance the efficacy of this intelligent drug delivery system (DDS), which constitutes a promising approach toward cancer therapy. A number of experimental techniques were used to characterize the resulting microspheres. In order to investigate the in vitro controlled release behavior of the synthesized microspheres, we studied the Dox release percentage under different pH conditions and under external magnetic field. Hyperthermia caused by an alternating magnetic field (AFM) is used in order to study the doxorubicin (Dox) release behavior from microspheres with pH functionality. The in vivo fate of these hybrid-microspheres was tracked by labeling them with the γ-emitting radioisotope (99m)Tc after being intravenously injected in normal mice. According to our results, microsphere present a pH depending and a magnetic heating, release behavior. As expected, labeled microspheres were mainly found in the mononuclear phagocyte system (MPS). The highlights of the current research are: (i) to illustrate the advantages of controlled release by combining hyperthermia and pH-sensitivity and (ii) to provide noninvasive, in vivo information on the spatiotemporal biodistribution of these microsphere by dynamic γ-imaging.
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Affiliation(s)
- Eleni K Efthimiadou
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Christos Tapeinos
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece; Materials Science Department, School of Natural Sciences, University of Patras, 26 500 Patras, Greece.
| | - Alexandros Chatzipavlidis
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Nikos Boukos
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Eirini Fragogeorgi
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - Lazaros Palamaris
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - George Loudos
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - George Kordas
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
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12
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Tziveleka LA, Bilalis P, Chatzipavlidis A, Boukos N, Kordas G. Development of Multiple Stimuli Responsive Magnetic Polymer Nanocontainers as Efficient Drug Delivery Systems. Macromol Biosci 2013; 14:131-41. [DOI: 10.1002/mabi.201300212] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/04/2013] [Indexed: 01/17/2023]
Affiliation(s)
- Leto-Aikaterini Tziveleka
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - Panayiotis Bilalis
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - Alexandros Chatzipavlidis
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
- School of Chemical Engineering; National Technical University of Athens; 9 HeroonPolytechniou St Zografos Athens GR-15780 Greece
| | - Nikos Boukos
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - George Kordas
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
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Chatzipavlidis A, Bilalis P, Tziveleka LA, Boukos N, Charitidis CA, Kordas G. Nanostructuring the surface of dual responsive hollow polymer microspheres for versatile utilization in nanomedicine-related applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:9562-9572. [PMID: 23862698 DOI: 10.1021/la401689c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The design and fabrication of hollow polymer microspheres responsive to various stimuli comprises a promising approach for the development of multifunctional and efficient systems for various nanomedicine-related applications. In this paper, we present the preparation of poly(methacrylic acid-co-N,N'-methylenebis(acrylamide)-co-poly(ethylene glycol) methyl ether methacrylate-co-N,N'-bis(acryloyl)cystamine) (PMAA(S-S)) hollow microspheres following a two-stage distillation precipitation polymerization procedure. Magnetic and silver nanocrystals were chemically grown on the surface of the hollow polymer microspheres, resulting in a composite system with interesting properties. We evaluated the performance of the composite hollow microspheres as magnetic hyperthermia mediators and their surface-enhanced Raman spectroscopy activity. Assessment of Daunorubicin-loaded PMAA(S-S) hollow microspheres performance as effective drug carriers was carried out through drug release experiments upon application of different pH and reducing conditions. pH and redox responsiveness as well as basic mechanisms of release profiles are discussed. Furthermore, in vitro cytotoxicity of empty and drug-loaded PMAA(S-S) hollow microspheres against MCF-7 cancer cells was investigated in order to evaluate their performance as drug carriers.
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Affiliation(s)
- A Chatzipavlidis
- Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR Demokritos, Aghia Paraskevi Attikis, Athens GR-15310, Greece
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14
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Tapeinos C, Efthimiadou EK, Boukos N, Charitidis CA, Koklioti M, Kordas G. Microspheres as therapeutic delivery agents: synthesis and biological evaluation of pH responsiveness. J Mater Chem B 2012; 1:194-203. [PMID: 32260692 DOI: 10.1039/c2tb00013j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A soft template method was used for the synthesis of pH-responsive microcontainers with an inner cavity. Poly(glycidyl methacrylate) (PGMA) microspheres of narrow size distribution were synthesized by soap-free radical emulsion polymerization and the coating of the microspheres was carried out by the same procedure. The procedure consists of two steps. In the first step the sacrificial template is synthesized and in the second step the shell is formed. Acrylic acid was used as a coating monomer, with the aim of introducing pH sensitivity in the synthesized microcontainers. A loading and release study of the anthracycline drug doxorubicin (DOX) was also carried out. The toxicity evaluation of the drug was carried out using the MTT assay, and the necrotic effect was studied using trypan blue.
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Affiliation(s)
- C Tapeinos
- NCSR "Demokritos", Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Properties, Nanotechnology and Microsystems, 153 10 Aghia Paraskevi Attikis, Greece.
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15
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Pourjavadi A, Hosseini SH, Doulabi M, Fakoorpoor SM, Seidi F. Multi-Layer Functionalized Poly(Ionic Liquid) Coated Magnetic Nanoparticles: Highly Recoverable and Magnetically Separable Brønsted Acid Catalyst. ACS Catal 2012. [DOI: 10.1021/cs300140j] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ali Pourjavadi
- Polymer Research
Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Seyed Hassan Hosseini
- Polymer Research
Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Maliheh Doulabi
- Polymer Research
Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Seyed Mahmoud Fakoorpoor
- Polymer Research
Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Farzad Seidi
- Polymer Research
Laboratory, Department of Chemistry, Sharif University of Technology, Tehran, Iran
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16
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Metaxa AF, Efthimiadou EK, Boukos N, Kordas G. Polysaccharides as a source of advanced materials: cellulose hollow microspheres for drug delivery in cancer therapy. J Colloid Interface Sci 2012; 384:198-206. [PMID: 22795041 DOI: 10.1016/j.jcis.2012.04.073] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 04/28/2012] [Accepted: 04/30/2012] [Indexed: 01/26/2023]
Abstract
Biocompatible hollow poly(methyl acrylic acid-co-N-isopropylacrylamide-co-ethyleneglycol dimethacrylate)@cellulose succinate (P(MAA-co-NIPAAM-co-EGDMA)@CS) microspheres have been synthesized by employing uniform silica-MPS microspheres as template. Silica spheres were synthesized via Stöber method involving tetraethyl orthosilicate. The surface of resulting silica Stöber microspheres was modified using 3-methacryloxypropyltrimethoxysilane (MPS), a polymerizable silane coupling agent. The above reagent introduces carbon-carbon double bonds on microspheres' surface. This strategy uses the copolymerization of the following monomers, methacrylic acid (MAA), N-isopropyl acrylamide (NIPAAM) and the ethyleneglycol dimethacrylate (EGDMA), which was used as cross-linker, aiming at fabricating the first shell. Distillation precipitation polymerization method was carried out with 2,2-azobis(2-methylpropionitrile) as initiator in acetonitrile aiming at coating the inorganic microspheres with organic shell of the above-mentioned copolymer. In continuation, cellulose succinate and cellulose powder was absorbed through electrostatic interactions onto microspheres' surface and the isolated product was cross-linked through esteric bonds formation. The cellulose succinate hollow microspheres were obtained after the silica core removal. The resulting spheres were characterized by Fourier transform infrared spectroscopy and observed by scanning and transmission electron microscopy. Dynamic light scattering was used to study the hydrodynamic diameter of the synthesized microspheres. The anticancer drug daunorubicin was loaded in the spheres, and its release behavior was evaluated at acidic and slightly basic pH conditions, aiming at evaluating its behavior at the healthy and pathogenic tissues.
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17
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Efthimiadou E, Tziveleka LA, Bilalis P, Kordas G. Novel PLA modification of organic microcontainers based on ring opening polymerization: Synthesis, characterization, biocompatibility and drug loading/release properties. Int J Pharm 2012; 428:134-42. [DOI: 10.1016/j.ijpharm.2012.02.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/16/2012] [Accepted: 02/19/2012] [Indexed: 12/20/2022]
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18
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Bilalis P, Chatzipavlidis A, Tziveleka LA, Boukos N, Kordas G. Nanodesigned magnetic polymer containers for dual stimuli actuated drug controlled release and magnetic hyperthermia mediation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31392h] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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