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Zabihi S, Bakhshpour M, Çalışır M, Topçu AA, Denizli A. Preparation of molecular imprinted injectable polymeric micro cryogels for control release of mitomycin C. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04233-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Feyzioğlu Demir E, Akgöl S. Synthesis and characterization of double molecular imprinted nanoparticles and investigation to adsorption of respiratory drugs. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.1991949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Esra Feyzioğlu Demir
- Department of Medical Laboratory Techniques, Vocational School of Health Services, Izmir University of Economics, Izmir, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, Izmir, Turkey
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3
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Preparation of a 99mTc-labeled graft polymer and its in vitro and in vivo evaluation. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07817-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Akgöl S, Ulucan-Karnak F, Kuru Cİ, Kuşat K. The usage of composite nanomaterials in biomedical engineering applications. Biotechnol Bioeng 2021; 118:2906-2922. [PMID: 34050923 DOI: 10.1002/bit.27843] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 05/04/2021] [Accepted: 05/23/2021] [Indexed: 12/23/2022]
Abstract
Nanotechnology is still developing over the decades and it is commonly used in biomedical applications with the design of nanomaterials due to the several purposes. With the investigation of materials on the molecular level has increased the develop composite nanomaterials with exceptional properties using in different applications and industries. The application of these composite nanomaterials is widely used in the fields of textile, chemical, energy, defense industry, electronics, and biomedical engineering which is growing and developing on human health. Development of biosensors for the diagnosis of diseases, drug targeting and controlled release applications, medical implants and imaging techniques are the research topics of nanobiotechnology. In this review, overview of the development of nanotechnology and applications which is use of composite nanomaterials in biomedical engineering is provided.
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Affiliation(s)
- Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, İzmir, Turkey
| | | | - Cansu İlke Kuru
- Department of Biochemistry, Faculty of Science, Ege University, İzmir, Turkey
| | - Kevser Kuşat
- Department of Chemistry, Faculty of Science, Dokuz Eylul University, İzmir, Turkey
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Cheng Y, Nie J, Liu H, Kuang L, Xu G. Synthesis and characterization of magnetic molecularly imprinted polymers for effective extraction and determination of kaempferol from apple samples. J Chromatogr A 2020; 1630:461531. [PMID: 32950815 DOI: 10.1016/j.chroma.2020.461531] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/04/2020] [Accepted: 09/06/2020] [Indexed: 10/23/2022]
Abstract
The specific of magnetic molecularly imprinted polymers (Fe3O4@SiO2-MIPs) for kaempferol were fabricated by using acrylamide (AM) as the functional monomer, azobisisobutyronitrile (AIBN) as the initiator and ethylene glycol dimethacrylate (EGDMA) as the cross-linker. The Fe3O4@SiO2-MIPs showed high adsorption capacity (3.84 mg/g) for kaempferol, and the adsorption equilibrium was achieved within 50 min. The specific recognition capacity of Fe3O4@SiO2-MIPs was 3.02 times as high as that of Fe3O4@SiO2-NIPs. The Fe3O4@SiO2-MIPs showed high selectivity towards kaempferol over structural analogues. The recoveries of proposed method at three spiked levels analysis were ranged from 90.5% to 95.4% with the relative standard deviations (RSD) less than 5%. The obtained Fe3O4@SiO2-MIPs were successfully applied for the extraction and determination of kaempferol from apple samples. The established method was simple and feasible, which showed high selectivity, fast separation and satisfactory recoveries for real sample analysis.
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Affiliation(s)
- Yang Cheng
- Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit (Xingcheng), Ministry of Agriculture and Rural Affairs/Supervision &Test Center of Fruit and Nursery Stocks Quality (Xingcheng), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, PR China
| | - Jiyun Nie
- College of Horticulture, Qingdao Agriculture University/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao 266109, PR China; Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit (Xingcheng), Ministry of Agriculture and Rural Affairs/Supervision &Test Center of Fruit and Nursery Stocks Quality (Xingcheng), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, PR China.
| | - Hongdi Liu
- Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit (Xingcheng), Ministry of Agriculture and Rural Affairs/Supervision &Test Center of Fruit and Nursery Stocks Quality (Xingcheng), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, PR China
| | - Lixue Kuang
- Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit (Xingcheng), Ministry of Agriculture and Rural Affairs/Supervision &Test Center of Fruit and Nursery Stocks Quality (Xingcheng), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, PR China
| | - Guofeng Xu
- Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit (Xingcheng), Ministry of Agriculture and Rural Affairs/Supervision &Test Center of Fruit and Nursery Stocks Quality (Xingcheng), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, PR China
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Kuru CI, Ulucan F, Kuşat K, Akgöl S. A model study by using polymeric molecular imprinting nanomaterials for removal of penicillin G. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:367. [PMID: 32415329 DOI: 10.1007/s10661-020-08294-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
We aimed to develop a molecularly imprinted polymeric systems with using penicillin G as a template molecule for removal of the antibiotic residues from environmental samples. Firstly, Pen-G-imprinted poly (2-hydroxyethyl methacrylate-N-methacryloyl-L-alanine) [p(HEMA-MAAL)] nanopolymers were synthesized by surfactant-free emulsion polymerization method. Then, template molecule (Pen-G) was extracted from nanopolymers. Synthesized nanopolymers were characterized by different methods such as Fourier-transform infrared spectroscopy (FTIR), elemental and zeta-size analysis, scanning electron microscope (SEM), and surface area calculations. Nanopolymers have 60.38 nm average size and 1034.22 m2/g specific surface area. System parameters on Pen-G adsorption onto Pen-G imprint nanopolymers were investigated at different conditions. The specific adsorption value (Qmax) of molecularly impirinted p(HEMA-MAAL) nanopolymers was found 71.91 g/g for Pen-G in 5 mg/mL Pen-G initial concentration. Pen-G adsorption of molecularly imprinted nanopolymers was 15 times more than non-imprinted polymer. It is shown that obtained p(HEMA-MAAL) nanopolymer was a reuseable product which protected its adsorption capacity of 98.9% after 5th adsorption-desorption cycle. In conclusion, we suggest a method to develop a nanostructure, selective, low-cost molecularly imprinted polymeric systems with using penicillin G as a template molecule for removal of the antibiotic residues.
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Affiliation(s)
- Cansu Ilke Kuru
- Department of Biochemistry, Ege University Faculty of Science, Izmir, Turkey
| | - Fulden Ulucan
- Department of Biochemistry, Ege University Faculty of Science, Izmir, Turkey
| | - Kevser Kuşat
- Turkish Health of Ministry, Turkish Medicines and Medical Devices Agency, Ankara, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Ege University Faculty of Science, Izmir, Turkey.
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7
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Bodoki AE, Iacob BC, Bodoki E. Perspectives of Molecularly Imprinted Polymer-Based Drug Delivery Systems in Cancer Therapy. Polymers (Basel) 2019; 11:polym11122085. [PMID: 31847103 PMCID: PMC6960886 DOI: 10.3390/polym11122085] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 01/09/2023] Open
Abstract
Despite the considerable effort made in the past decades, multiple aspects of cancer management remain a challenge for the scientific community. The severe toxicity and poor bioavailability of conventional chemotherapeutics, and the multidrug resistance have turned the attention of researchers towards the quest of drug carriers engineered to offer an efficient, localized, temporized, and doze-controlled delivery of antitumor agents of proven clinical value. Molecular imprinting of chemotherapeutics is very appealing in the design of drug delivery systems since the specific and selective binding sites created within the polymeric matrix turn these complex structures into value-added carriers with tunable features, notably high loading capacity, and a good control of payload release. Our work aims to summarize the present state-of-the art of molecularly imprinted polymer-based drug delivery systems developed for anticancer therapy, with emphasis on the particularities of the chemotherapeutics’ release and with a critical assessment of the current challenges and future perspectives of these unique drug carriers.
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Affiliation(s)
- Andreea Elena Bodoki
- Inorganic Chemistry Dept., Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy, 8 Ion Creangă St., 400010 Cluj-Napoca, Romania;
| | - Bogdan-Cezar Iacob
- Analytical Chemistry Dept., Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania;
| | - Ede Bodoki
- Analytical Chemistry Dept., Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania;
- Correspondence: ; Tel.: +40-264-597-256 (int. 2838)
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Avcıbaşı U, Ateş B, Ünak P, Gümüşer FG, Gülcemal S, Ol KK, Akgöl S, Tekin V. A novel radiolabeled graft polymer: Investigation of the radiopharmaceutical potential using Albino Wistar rats. Appl Radiat Isot 2019; 154:108872. [PMID: 31470192 DOI: 10.1016/j.apradiso.2019.108872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/31/2019] [Accepted: 08/21/2019] [Indexed: 12/23/2022]
Abstract
Fe3O4 magnetic graft-Lys-poly(HEMA) was synthesized, labeled with 99mTc for the first time and its radiopharmaceutical potential was investigated using animal models in this study. Quality control procedures were carried out using thin layer radiochromatography. The labeling yield of radiolabeled polymer was found to be about 100%. Then, stability and lipophilicity were determined. The lipophilicity of 99mTc labeled Fe3O4 graft-Lys-poly(HEMA) was found to be 3.77. The serum stability experiments demonstrated that approximately 100% of radiolabeled polymer existed as an intact complex in the rat serum within 240 min. Biodistribution of radiolabeled magnetic graft-Lys-poly(HEMA) was performed on female Albino Wistar rats by scintigraphy and biodistribution studies. High uptake was seen in the stomach, the pancreas, brain, ovarian, intestines and the breast.
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Affiliation(s)
- Uğur Avcıbaşı
- Department of Chemistry, Manisa Celal Bayar University, Faculty of Art and Science, 45140, Manisa, Turkey.
| | - Buket Ateş
- Department of Chemistry, Manisa Celal Bayar University, Faculty of Art and Science, 45140, Manisa, Turkey
| | - Perihan Ünak
- Institute of Nuclear Sciences, Ege University, Department of Nuclear Applications, 35100, İzmir, Turkey
| | - Fikriye Gül Gümüşer
- Department of Nuclear Medicine, Manisa Celal Bayar University, School of Medicine, 45030, Manisa, Turkey
| | - Süleyman Gülcemal
- Department of Chemistry, Ege University, Faculty of Science, 35100, Izmir, Turkey
| | - Kevser Kusat Ol
- Turkish Health of Ministry, Turkish Medicines and Medical Devices Agency, Ankara, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, 35100, İzmir, Turkey
| | - Volkan Tekin
- Institute of Nuclear Sciences, Ege University, Department of Nuclear Applications, 35100, İzmir, Turkey
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Esen C, Czulak J, Cowen T, Piletska E, Piletsky SA. Highly Efficient Abiotic Assay Formats for Methyl Parathion: Molecularly Imprinted Polymer Nanoparticle Assay as an Alternative to Enzyme-Linked Immunosorbent Assay. Anal Chem 2018; 91:958-964. [PMID: 30518208 DOI: 10.1021/acs.analchem.8b04065] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Enzyme-linked immunosorbent assay (ELISA) is a widely used standard method for sensitive detection of analytes of environmental, clinical, or biotechnological interest. However, ELISA has clear drawbacks related to the use of relatively unstable antibodies and enzyme conjugates and the need for several steps such as washing of nonbound conjugates and addition of dye reagents. Herein, we introduce a new completely abiotic assay where antibodies and enzymes are replaced with fluorescent molecularly imprinted polymer nanoparticles (nanoMIPs) and target-conjugated magnetic nanoparticles, which acted as both reporter probes and binding agents. The components of the molecularly imprinted polymer nanoparticle assay (MINA) are assembled in microtiter plates fitted with magnetic inserts. We have compared the performance of a new magnetic assay with molecularly imprinted polymer (MIP)-based ELISA for the detection of methyl parathion (MP). Both assays have shown high sensitivity toward allowing detection of MP at picomolar concentrations without any cross-reactivity against chlorpyriphos and fenthion. The fully abiotic assays were also proven to detect analyte in real samples such as tap water and milk. Unlike ELISA-based systems, the novel assay required no washing steps or addition of enzyme substrates, making it more user-friendly and suitable for high throughput screening.
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Affiliation(s)
- Cem Esen
- Department of Chemistry, Faculty of Arts and Sciences , Aydın Adnan Menderes University , 09010 Aydın , Turkey.,Department of Chemistry , University of Leicester , LE1 7RH Leicester , United Kingdom
| | - Joanna Czulak
- MIP Diagnostics Ltd , Colworth Park, MK44 1LQ Bedford , United Kingdom
| | - Todd Cowen
- Department of Chemistry , University of Leicester , LE1 7RH Leicester , United Kingdom
| | - Elena Piletska
- Department of Chemistry , University of Leicester , LE1 7RH Leicester , United Kingdom
| | - Sergey A Piletsky
- Department of Chemistry , University of Leicester , LE1 7RH Leicester , United Kingdom
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10
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Bilici M, Zengin A, Ekmen E, Cetin D, Aktas N. Efficient and selective separation of metronidazole from human serum by using molecularly imprinted magnetic nanoparticles. J Sep Sci 2018; 41:2952-2960. [PMID: 29813175 DOI: 10.1002/jssc.201800428] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/14/2018] [Accepted: 05/16/2018] [Indexed: 01/24/2023]
Abstract
Magnetic molecularly imprinted nanoparticles were prepared through surface-initiated reversible addition fragmentation chain transfer polymerization by using metronidazole as a template. The molecularly imprinted magnetic nanoparticles were characterized by attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, X-ray diffraction, and vibrating sample magnetometry. The adsorption characteristics were also investigated and the kinetics of the adsorption of metronidazole on the imprinted nanoparticles were described by the second-order kinetic model with the short equilibrium adsorption time (30 min). The adsorption isotherm was well matched with the Langmuir isotherm in which the maximum adsorption capacity was calculated to be 40.1 mg/g. Furthermore, the imprinted magnetic nanoparticles showed good selectivity as well as reusability even after six adsorption-desorption cycles. The imprinted magnetic nanoparticles were used as a sorbent for the selective separation of metronidazole from human serum. The recoveries of metronidazole from human serum changed between 97.5 and 99.8% and showed similar sensitivity as an enzyme-linked immunoassay method. Therefore, the molecularly imprinted magnetic nanoparticles might have potential application for the selective and reliable separation of metronidazole from biological fluids in clinical applications.
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Affiliation(s)
- Mustafa Bilici
- Department of Chemistry, Faculty of Science and Arts, Van Yuzuncu Yil University, Van, Turkey
| | - Adem Zengin
- Department of Chemical Engineering, Faculty of Engineering, Van Yuzuncu Yil University, Van, Turkey
| | - Elvan Ekmen
- Department of Chemical Engineering, Faculty of Engineering, Van Yuzuncu Yil University, Van, Turkey
| | - Demet Cetin
- Department of Mathematics and Science Education, Gazi Faculty of Education, Gazi University, Ankara, Turkey
| | - Nahit Aktas
- Department of Chemical Engineering, Faculty of Engineering, Van Yuzuncu Yil University, Van, Turkey
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11
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Bakhshpour M, Yavuz H, Denizli A. Controlled release of mitomycin C from PHEMAH-Cu(II) cryogel membranes. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:946-954. [PMID: 29457925 DOI: 10.1080/21691401.2018.1439840] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Molecular imprinting technique was used for the preparation of antibiotic and anti-neoplastic chemotherapy drug (mitomycin C) imprinted cryogel membranes (MMC-ICM). The membranes were synthezied by using metal ion coordination interactions with N-methacryloyl-(l)-histidine methyl ester (MAH) functional monomer and template molecules (i.e. MMC). The 2-hydroxyethyl methacrylate (HEMA) monomer and methylene bisacrylamide (MBAAm) crosslinker were used for the preparation of mitomycin C imprinted cryogel membranes by radical suspension polymerization technique. The imprinted cryogel membranes were characterized by scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) and swelling degree measurements. Cytotoxicity of MMC-ICMs was investigated using mouse fibroblast cell line L929. Time-dependent release of MMC was demonstrated within 150 h from cryogel membranes. Cryogels demonstrated very high MMC loading efficiency (70-80%) and sustained MMC release over hours.
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Affiliation(s)
| | - Handan Yavuz
- a Department of Chemistry , Hacettepe University , Ankara , Turkey
| | - Adil Denizli
- a Department of Chemistry , Hacettepe University , Ankara , Turkey
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12
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Wu M, Huang S. Magnetic nanoparticles in cancer diagnosis, drug delivery and treatment. Mol Clin Oncol 2017; 7:738-746. [PMID: 29075487 PMCID: PMC5649002 DOI: 10.3892/mco.2017.1399] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/17/2017] [Indexed: 12/25/2022] Open
Abstract
In recent years, magnetic nanoparticles (MNPs) have demonstrated marked progress in the field of oncology. General nanoparticles are widely used in tumor targeting, and the intrinsic magnetic property of MNPs makes them the most promising nanomaterial to be used as contrast agents for magnetic resonance imaging (MRI) and induced magnetic hyperthermia. The properties of MNPs are fully exploited when they are used as drug delivery agents, wherein drugs may be targeted to the desired specific location in vivo by application of an external magnetic field. Early diagnosis of cancer may be achieved by MRI, therefore, individualized treatment may be combined with MRI, so as to achieve the precise definition and appropriate treatment. In the present review, research on MNPs in cancer diagnosis, drug delivery and treatment has been summarized. Furthermore, the future perspectives and challenges of MNPs in the field of oncology are also discussed.
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Affiliation(s)
- Meijia Wu
- Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
| | - Shengwu Huang
- Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, P.R. China
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Çetin K, Alkan H, Bereli N, Denizli A. Molecularly imprinted cryogel as a pH-responsive delivery system for doxorubicin. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2017. [DOI: 10.1080/10601325.2017.1320757] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Kemal Çetin
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
- Department of Chemistry, Biochemistry Division, Necmettin Erbakan University, Konya, Turkey
| | - Hüseyin Alkan
- Department of Biochemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey
| | - Nilay Bereli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
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14
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Öncel P, Çetin K, Topçu AA, Yavuz H, Denizli A. Molecularly imprinted cryogel membranes for mitomycin C delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:519-531. [PMID: 28105892 DOI: 10.1080/09205063.2017.1282772] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this study, cryogel-based implantable molecularly imprinted drug delivery systems were designed for the delivery of antineoplastic agent. Mitomycin C imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-l-glutamic acid) cryogel membranes were produced by free-radical bulk polymerization under partially frozen conditions. The membranes were characterized by swelling tests, Fourier transform infrared spectroscopy, scanning electron microscopy, surface area measurements and in vitro hemocompatibility tests. In vitro delivery studies were carried out to examine the effects of cross-linker ratio and template content. Mitomycin C imprinted cryogel membranes have megaporous structure (10-100 μm in diameter). The cumulative release of mitomycin C was decreased with increasing cross-linking agent ratio and increased with the amount of template in the cryogel structure. The nature of transport mechanism of the mitomycin C from the membranes was non-Fickian.
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Affiliation(s)
- Pınar Öncel
- a Bioengineering Division , Hacettepe University , Ankara , Turkey
| | - Kemal Çetin
- b Biochemistry Division, Department of Chemistry , Hacettepe University , Ankara , Turkey
| | - Aykut Arif Topçu
- c Department of Chemistry , Aksaray University , Aksaray , Turkey
| | - Handan Yavuz
- b Biochemistry Division, Department of Chemistry , Hacettepe University , Ankara , Turkey
| | - Adil Denizli
- b Biochemistry Division, Department of Chemistry , Hacettepe University , Ankara , Turkey
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15
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Saçlıgil D, Şenel S, Yavuz H, Denizli A. Purification of transferrin by magnetic immunoaffinity beads. J Sep Sci 2015; 38:2729-36. [PMID: 25980364 DOI: 10.1002/jssc.201500216] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 12/26/2022]
Abstract
Immunoaffinity adsorbent for transferrin (Tf) purification was prepared by immobilizing anti-transferrin (Anti-Tf) antibody on magnetic monosizepoly(glycidyl methacrylate) beads, which were synthesized by dispersion polymerization technique in the presence of Fe3 O4 nanopowder and obtained with an average size of 2.0 μm. The magnetic poly(glycidyl methacrylate) (mPGMA) beads were characterized by Fourier transform infrared spectroscopy, swelling tests, scanning electron microscopy, electron spin resonance spectroscopy, thermogravimetric analysis and zeta sizing analysis. The density and swelling ratio of the beads were 1.08 g/cm(3) and 52%, respectively. Anti-Tf molecules were covalently coupled through epoxy groups of mPGMA. Optimum binding of anti-Tf was 2.0 mg/g. Optimum Tf binding from aqueous Tf solutions was determined as 1.65 mg/g at pH 6.0 and initial Tf concentration of 1.0 mg/mL. There was no remarkable loss in the Tf adsorption capacity of immunoaffinity beads after five adsorption-desorption cycles. Tf adsorption from artificial plasma was also investigated and the purity of the Tf molecules was shown with gel electrophoresis studies.
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Affiliation(s)
- Dilara Saçlıgil
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
| | - Serap Şenel
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
| | - Handan Yavuz
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
| | - Adil Denizli
- Hacettepe University, Department of Chemistry, Beytepe, Ankara, Turkey
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Çetin K, Denizli A. 5-Fluorouracil delivery from metal-ion mediated molecularly imprinted cryogel discs. Colloids Surf B Biointerfaces 2015; 126:401-6. [PMID: 25601094 DOI: 10.1016/j.colsurfb.2014.12.038] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 11/25/2022]
Abstract
The objective of this study is to prepare imprinted cryogel discs for delivery of 5-fluorouracil. The coordinate bond interactions are utilized to accomplish a coordination complex between metal-chelate monomer N-methacryloyl-L-histidine and 5-FU with the assistance of Cu(2+) ion. The complex is copolymerized with hydroxyethyl methacrylate to produce poly(hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester) cryogel discs. The cryogel discs are characterized thoroughly by performing swelling tests, scanning electron microscopy, differential scanning calorimetry and X-ray diffraction studies. In vitro delivery studies are performed to investigate the effects of cross-linker ratio, medium pH and drug concentration. 5-FU imprinted cryogel discs have highly macroporous structures. Drug molecules are homogeneously dispersed in the 5-FU imprinted cryogel matrix. The cumulative release of 5-FU decreased by increasing the cross-linker density in the polymer matrix. Delivery rate of 5-FU varied with different pH values in a coordination complex since metal ion acts as a Lewis acid, and the ligand, i.e. 5-FU acts as a Lewis base. The cumulative release of 5-FU increased with increasing drug concentration in polymer matrix. The nature of the 5-FU transport mechanism is non-Fickian.
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Affiliation(s)
- Kemal Çetin
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey.
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17
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Kartal F, Denizli A. Surface molecularly imprinted magnetic microspheres for the recognition of albumin. J Sep Sci 2014; 37:2077-86. [DOI: 10.1002/jssc.201400086] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/25/2014] [Accepted: 04/30/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Fatma Kartal
- Department of Chemistry; Biochemistry Division, Hacettepe University; Ankara Turkey
| | - Adil Denizli
- Department of Chemistry; Biochemistry Division, Hacettepe University; Ankara Turkey
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