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Şarkaya K, Özçelik H, Yaşar E, Güner T, Dokuzparmak E, Hooshmand S, Akgöl S. Selective Extraction and Quantification of Hemoglobin Based on a Novel Molecularly Imprinted Nanopolymeric Structure of Poly(acrylamide-vinyl imidazole). ACS Omega 2024; 9:18458-18468. [PMID: 38680349 PMCID: PMC11044176 DOI: 10.1021/acsomega.4c00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 05/01/2024]
Abstract
Imbalances in hemoglobin (Hb) levels can lead to conditions such as anemia or polycythemia, emphasizing the importance of precise Hb extraction from blood. To address this, a novel synthetic imprinted polymer was meticulously developed for capturing and separating Hb. Poly(acrylamide-vinylimidazole) nanopolymer (poly(AAm-VIM)) was synthesized using acrylamide and vinyl imidazole as functional monomers through surfactant-free emulsion polymerization. Characterization using FTIR, particle size, zeta potential, and SEM ensured the polymer's structure. The Hb-imprinted nanopolymer (Hb-poly(AAm-VIM)) demonstrated notable specificity, with a calculated Hb-specific adsorption value (Qmax) of 3.7377 mg/g in a medium containing 2.5 mg/mL Hb. The molecularly imprinted polymer (MIP) exhibited approximately 5 times higher Hb adsorption than the nonimprinted polymer (NIP). Under the same conditions, the imprinted nanopolymer displayed 2.39 and 2.17 times greater selectivity for Hb over competing proteins such as bovine serum albumin (BSA) and lysozyme (Lys), respectively. Also, SDS-PAGE analysis results confirmed the purification of Hb by the molecularly imprinted nanopolymer. These results underscore the heightened specificity and efficacy of the molecularly imprinted nanopolymer in selectively targeting Hb atoms among other proteins. Incorporating such polymers is justified by their notable affinity, cost-effectiveness, and facile production. This research contributes valuable insights into optimizing synthetic imprinted polymers for efficient Hb extraction, with potential in medical diagnostics and treatment applications.
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Affiliation(s)
- Koray Şarkaya
- Department
of Chemistry, Faculty of Science, Pamukkale
University, Denizli 20160, Turkey
| | - Hilal Özçelik
- Department
of Biochemistry, Faculty of Science, Ege
University, Izmir 35100, Turkey
| | - Esra Yaşar
- Department
of Biochemistry, Faculty of Science, Ege
University, Izmir 35100, Turkey
| | - Timuçin Güner
- Department
of Biochemistry, Faculty of Science, Ege
University, Izmir 35100, Turkey
| | - Emre Dokuzparmak
- Department
of Bioengineering, Ege University, Izmir 35100, Turkey
| | - Sara Hooshmand
- Sabanci
University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
| | - Sinan Akgöl
- Department
of Biochemistry, Faculty of Science, Ege
University, Izmir 35100, Turkey
- Sabanci
University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
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Kuru Cİ, Ulucan-Karnak F, Dayıoğlu B, Şahinler M, Şendemir A, Akgöl S. Affinity-Based Magnetic Nanoparticle Development for Cancer Stem Cell Isolation. Polymers (Basel) 2024; 16:196. [PMID: 38256995 PMCID: PMC10818538 DOI: 10.3390/polym16020196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/06/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Cancer is still the leading cause of death in the world despite the developing research and treatment opportunities. Failure of these treatments is generally associated with cancer stem cells (CSCs), which cause metastasis and are defined by their resistance to radio- and chemotherapy. Although known stem cell isolation methods are not sufficient for CSC isolation, they also bring a burden in terms of cost. The aim of this study is to develop a high-efficiency, low-cost, specific method for cancer stem cell isolation with magnetic functional nanoparticles. This study, unlike the stem cell isolation techniques (MACS, FACS) used today, was aimed to isolate cancer stem cells (separation of CD133+ cells) with nanoparticles with specific affinity and modification properties. For this purpose, affinity-based magnetic nanoparticles were synthesized and characterized by providing surface activity and chemical reactivity, as well as making surface modifications necessary for both lectin affinity and metal affinity interactions. In the other part of the study, synthesized and characterized functional polymeric magnetic nanoparticles were used for the isolation of CSC from the human osteosarcoma cancer cell line (SAOS-2) with a cancer stem cell subpopulation bearing the CD133 surface marker. The success and efficiency of separation after stem cell isolation were evaluated via the MACS and FACS methods. As a result, when the His-graft-mg-p(HEMA) nanoparticle was used at a concentration of 0.1 µg/mL for 106 and 108 cells, superior separation efficiency to commercial microbeads was obtained.
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Affiliation(s)
- Cansu İlke Kuru
- Department of Biochemistry, Faculty of Science, Ege University, 35100 İzmir, Turkey; (C.İ.K.); (S.A.)
| | - Fulden Ulucan-Karnak
- Department of Biochemistry, Faculty of Science, Ege University, 35100 İzmir, Turkey; (C.İ.K.); (S.A.)
| | - Büşra Dayıoğlu
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 İzmir, Turkey; (B.D.); (M.Ş.); (A.Ş.)
| | - Mert Şahinler
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 İzmir, Turkey; (B.D.); (M.Ş.); (A.Ş.)
| | - Aylin Şendemir
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 İzmir, Turkey; (B.D.); (M.Ş.); (A.Ş.)
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, 35100 İzmir, Turkey; (C.İ.K.); (S.A.)
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Bakan B, Jonckheere AC, Decaesteker T, Marain NF, Murugadoss S, Karabay Yavasoglu NU, Şahar U, Şenay RH, Akgöl S, Göksel Ö, Hoet PHM, Vanoirbeek JAJ. Impact of a Polymer-Based Nanoparticle with Formoterol Drug as Nanocarrier System In Vitro and in an Experimental Asthmatic Model. Toxics 2023; 11:974. [PMID: 38133375 PMCID: PMC10747207 DOI: 10.3390/toxics11120974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
The implementation of nanotechnology in pulmonary delivery systems might result in better and more specific therapy. Therefore, a nano-sized drug carrier should be toxicologically inert and not induce adverse effects. We aimed to investigate the responses of a polymer nano drug carrier, a lysine poly-hydroxyethyl methacrylate nanoparticle (NP) [Lys-p(HEMA)], loaded with formoterol, both in vitro and in vivo in an ovalbumin (OVA) asthma model. The successfully synthesized nanodrug formulation showed an expectedly steady in vitro release profile. There was no sign of in vitro toxicity, and the 16HBE and THP-1 cell lines remained vital after exposure to the nanocarrier, both loaded and unloaded. In an experimental asthma model (Balb/c mice) of ovalbumin sensitization and challenge, the nanocarrier loaded and unloaded with formoterol was tested in a preventive strategy and compared to treatment with the drug in a normal formulation. The airway hyperresponsiveness (AHR) and pulmonary inflammation in the bronchoalveolar lavage (BAL), both cellular and biochemical, were assessed. The application of formoterol as a regular drug and the unloaded and formoterol-loaded NP in OVA-sensitized mice followed by a saline challenge was not different from the control group. Yet, both the NP formulation and the normal drug application led to a more deteriorated lung function and increased lung inflammation in the OVA-sensitized and -challenged mice, showing that the use of the p(HEMA) nanocarrier loaded with formoterol needs more extensive testing before it can be applied in clinical settings.
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Affiliation(s)
- Buket Bakan
- Department of Public Health and Primary Care, Centre for Environment and Health, KU Leuven, 3000 Leuven, Belgium; (B.B.); (P.H.M.H.)
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum 25240, Turkey
| | - Anne-Charlotte Jonckheere
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium
| | - Tatjana Decaesteker
- BREATH, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium (N.F.M.)
| | - Nora F. Marain
- BREATH, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium (N.F.M.)
| | - Sivakumar Murugadoss
- Department of Public Health and Primary Care, Centre for Environment and Health, KU Leuven, 3000 Leuven, Belgium; (B.B.); (P.H.M.H.)
| | | | - Umut Şahar
- Department of Biology, Faculty of Science, Ege University, Izmir 35100, Turkey; (N.U.K.Y.); (U.Ş.)
| | - Raziye Hilal Şenay
- Department of Biochemistry, Faculty of Science, Ege University, Izmir 35100, Turkey; (R.H.Ş.); (S.A.)
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, Izmir 35100, Turkey; (R.H.Ş.); (S.A.)
| | - Özlem Göksel
- Laboratory of Occupational & Environmental Respiratory Diseases and Asthma, Ege University, Izmir 35040, Turkey;
| | - Peter H. M. Hoet
- Department of Public Health and Primary Care, Centre for Environment and Health, KU Leuven, 3000 Leuven, Belgium; (B.B.); (P.H.M.H.)
| | - Jeroen A. J. Vanoirbeek
- Department of Public Health and Primary Care, Centre for Environment and Health, KU Leuven, 3000 Leuven, Belgium; (B.B.); (P.H.M.H.)
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Bakan B, Oltulu F, Yıldırım Y, Yavaşoğlu A, Akgöl S, Karabay Yavaşoğlu NÜ. L-glutamic acid-g-poly hydroxyethyl methacrylate nanoparticles: acute and sub-acute toxicity and biodistribution potential in mice. Arh Hig Rada Toksikol 2023; 74:207-217. [PMID: 37791671 PMCID: PMC10549881 DOI: 10.2478/aiht-2023-74-3768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/01/2023] [Accepted: 09/01/2023] [Indexed: 10/05/2023] Open
Abstract
The aim of this safety study in mice was to determine in vivo toxicity and biodistribution potential of a single and multiple doses of L-glutamic acid-g-p(HEMA) polymeric nanoparticles as a drug delivery system. The single dose did not cause any lethal effect, and its acute oral LD50 was >2.000 mg/kg body weight (bw). Multiple doses (25, 50, or 100 mg/kg bw) given over 28 days resulted in no significant differences in body and relative organ weights compared to control. These results are supported by biochemical and histological findings. Moreover, nanoparticle exposure did not result in statistically significant differences in micronucleus counts in bone marrow cells compared to control. Nanoparticle distribution was time-dependent, and they reached the organs and even bone marrow by hour 6, as established by ex vivo imaging with the IVIS® spectrum imaging system. In conclusion, L-glutamic acid-g-p(HEMA) polymeric nanoparticles appear biocompatible and have a potential use as a drug delivery system.
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Affiliation(s)
- Buket Bakan
- Atatürk University Faculty of Science, Department of Molecular Biology and Genetics, Erzurum, Turkey
- Ege University Faculty of Science, Department of Biology, Izmir, Turkey
| | - Fatih Oltulu
- Ege University Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Yeliz Yıldırım
- Ege University Faculty of Science, Department of Chemistry, Izmir, Turkey
| | - Altuğ Yavaşoğlu
- Ege University Faculty of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Sinan Akgöl
- Ege University Faculty of Science, Department of Biochemistry, Izmir, Turkey
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Baglamis S, Feyzioğlu-Demir E, Akgöl S. New insight into anti-wrinkle treatment: Using nanoparticles as a controlled release system to increase acetyl octapeptide-3 efficiency. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-022-04663-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Jing HH, Bardakci F, Akgöl S, Kusat K, Adnan M, Alam MJ, Gupta R, Sahreen S, Chen Y, Gopinath SCB, Sasidharan S. Green Carbon Dots: Synthesis, Characterization, Properties and Biomedical Applications. J Funct Biomater 2023; 14:jfb14010027. [PMID: 36662074 PMCID: PMC9863160 DOI: 10.3390/jfb14010027] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
Carbon dots (CDs) are a new category of crystalline, quasi-spherical fluorescence, "zero-dimensional" carbon nanomaterials with a spatial size between 1 nm to 10 nm and have gained widespread attention in recent years. Green CDs are carbon dots synthesised from renewable biomass such as agro-waste, plants or medicinal plants and other organic biomaterials. Plant-mediated synthesis of CDs is a green chemistry approach that connects nanotechnology with the green synthesis of CDs. Notably, CDs made with green technology are economical and far superior to those manufactured with physicochemical methods due to their exclusive benefits, such as being affordable, having high stability, having a simple protocol, and being safer and eco-benign. Green CDs can be synthesized by using ultrasonic strategy, chemical oxidation, carbonization, solvothermal and hydrothermal processes, and microwave irradiation using various plant-based organic resources. CDs made by green technology have diverse applications in biomedical fields such as bioimaging, biosensing and nanomedicine, which are ascribed to their unique properties, including excellent luminescence effect, strong stability and good biocompatibility. This review mainly focuses on green CDs synthesis, characterization techniques, beneficial properties of plant resource-based green CDs and their biomedical applications. This review article also looks at the research gaps and future research directions for the continuous deepening of the exploration of green CDs.
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Affiliation(s)
- Hong Hui Jing
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia (USM), Pulau Pinang 11800, Malaysia
| | - Fevzi Bardakci
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
- Molecular Diagnostics and Personalized Therapeutics Unit, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, Izmir 35040, Turkey
- Nanotechnology Research and Application Center, Sabanci University, Istanbul 34956, Turkey
| | - Kevser Kusat
- Department of Chemistry, Faculty of Science, DokuzEylül University, Izmir 35390, Turkey
| | - Mohd Adnan
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Mohammad Jahoor Alam
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Reena Gupta
- Department of Pharmacognosy, Institute of Pharmaceutical Research, GLA University, Mathura 281406, India
| | - Sumaira Sahreen
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia (USM), Pulau Pinang 11800, Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Subash C. B. Gopinath
- Faculty of Chemical Engineering and Technology, Universiti Malaysia Perlis, Arau 02600, Malaysia
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia (USM), Pulau Pinang 11800, Malaysia
- Correspondence: ; Tel.: +60-12-532-3462; Fax: +60-4-653-4803
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Altunbaş C, Aslan A, Kuşat K, Sahiner M, Akgöl S, Sahiner N. Synthesis and Characterization of a New Cryogel Matrix for Covalent Immobilization of Catalase. Gels 2022; 8:gels8080501. [PMID: 36005102 PMCID: PMC9407055 DOI: 10.3390/gels8080501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/07/2022] [Accepted: 08/11/2022] [Indexed: 11/24/2022] Open
Abstract
The advantages of cryogels for enzyme immobilization applications include their mechanical and chemical robustness, ease of production, superior porosity, and low cost. Currently, many researchers are exploring porous material-based systems for enzyme immobilization that are more efficient and economically viable. Here, poly(2-Hydroxyethyl methacrylate-co-allyl glycidyl ether) (p(HEMA-co-AGE)) cryogel matrices were synthesized via the free radical cryopolymerization method to be employed as the support material. For the immobilization of the catalase enzyme onto the p(HEMA-co-AGE) cryogel matrix (catalase@p(HEMA-co-AGE), the best possible reaction conditions were determined by altering parameters such as pH, catalase initial concentration, and flow rate. The maximum catalase immobilization amount onto the p(HEMA-co-AGE) cryogel was found to be 48 mg/g cryogel. To determine the advantages of the cryogel matrix, e.g., the stability and reusability of the cryogel matrix, the adsorption–desorption cycles for the catalase enzyme were repeated five times using the same cryogel matrix. At the end of the reusability tests, it was found that the cryogel was very stable and maintained its adsorption capacity with the recovery ratio of 93.8 ± 1.2%. Therefore, the p(HEMA-co-AGE) cryogel matrix affords repeated useability, e.g., up to five times, without decreasing its catalase binding capacities significantly and has promising potential for many industrial applications. Cryogels offer clear distinctive advantages over common materials, e.g., micro/nano particles, hydrogels, films, and composites for these applications. At present, many researchers are working on the design of more effective and economically feasible, porous material-based systems for enzyme immobilization
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Affiliation(s)
- Canan Altunbaş
- Department of Biochemistry, Faculty of Science, Ege University, Izmir 35100, Turkey
| | - Ahmet Aslan
- Department of Leather Engineering, Faculty of Engineering, Ege University, Izmir 35100, Turkey
| | - Kevser Kuşat
- Department of Chemistry, Faculty of Science, Dokuz Eylul University, Izmir 35390, Turkey
| | - Mehtap Sahiner
- Bioengineering Department, Faculty of Engineering, Canakkale Onsekiz Mart University, Terzioglu Campus, Canakkale 17100, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, Izmir 35100, Turkey
- Correspondence: (S.A.); or (N.S.)
| | - Nurettin Sahiner
- Department of Chemistry, Faculty of Sciences & Arts, Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, Canakkale 17100, Turkey
- Materials Science and Engineering Program, Department of Chemical & Biomedical Engineering, University of South Florida, Tampa, FL 33620, USA
- Department of Ophthalmology, University of South Florida, Tampa, FL 33620, USA
- Correspondence: (S.A.); or (N.S.)
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Feyzioğlu-Demir E, Üzüm ÖB, Akgöl S. Swelling and diffusion behaviour of spherical morphological polymeric hydrogel membranes (SMPHMs) containing epoxy groups and their application as drug release systems. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04368-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Kuşat K, Bağlamış S, Kuru Cİ, Ulucan F, Uygun M, Akgöl S. p(HEMA)-RR241 hydrogel membranes with micron network for IgG depletion in proteomic studies. J Biomater Sci Polym Ed 2022; 33:1181-1197. [PMID: 35192441 DOI: 10.1080/09205063.2022.2045666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/12/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Serum proteins can generally be considered a good source for the illness' indication and are precious resources to detect diseases such as inflammation, cancer, diabetes, malnutrition, cardiovascular diseases, Alzheimer's, other autoimmune diseases, and infections. However, one of the biggest difficulties for proteomic studies is that the majority of serum protein mass consists of only a few proteins. Albumin and Immunoglobulin (IgG) constitute 80% of total serum protein. In this study, dye ligand affinity-based hydrogel membranes were proposed as new materials with micron mesh structures. Micron mesh p(HEMA) hydrogel membranes were synthesized by using the UV-photopolymerization method, then modified with Reactive Red 241 (RR241) dye ligand to increase the affinity towards IgG. Characterizations of synthesized micron mesh p(HEMA)-RR241 hydrogel membranes were also performed. It was demonstrated by the characterization studies that; the dye was successfully incorporated into the membrane structure with the amount of 119.38 mg/g. The hydrophilic property of the hydrogel membrane was demonstrated by swelling tests and the swelling value of dye modified membrane was found to be 8 times higher than that of the plain membrane. Micron network structure, as well as the porosity, were demonstrated with SEM/ESEM studies. Optimization of IgG adsorption conditions was also studied at different parameters (pH, temperature, ion strength, initial IgG concentration). Optimum pH, temperature, and ionic strength were found to be 6.5, 25 °C, 0.05 M, respectively, and the maximum IgG absorption value was 10.27 mg/g. Finally, it was shown that the proposed materials can be used repeatedly by 5 adsorption-desorption cycles.
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Affiliation(s)
- Kevser Kuşat
- Chemistry Department, Faculty of Science, Dokuz Eylül University, Izmir, Turkey
| | - Selami Bağlamış
- Biochemistry Department, Faculty of Science, Ege University, Izmir, Turkey
| | - Cansu İlke Kuru
- Biochemistry Department, Faculty of Science, Ege University, Izmir, Turkey
| | - Fulden Ulucan
- Biochemistry Department, Faculty of Science, Ege University, Izmir, Turkey
| | - Murat Uygun
- Chemistry Department, Faculty of Science and Arts, Adnan Menderes University, Aydın, Turkey
| | - Sinan Akgöl
- Biochemistry Department, Faculty of Science, Ege University, Izmir, Turkey
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Kuru CI, Ulucan F, Kuşat K, Akgöl S. A model study by using polymeric molecular imprinting nanomaterials for removal of penicillin G. Environ Monit Assess 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Bakan B, Gülcemal S, Akgöl S, Hoet PH, Karabay Yavaşoğlu NÜ. Synthesis, characterization and toxicity assessment of a new polymeric nanoparticle, l-glutamic acid-g-p(HEMA). Chem Biol Interact 2020; 315:108870. [DOI: 10.1016/j.cbi.2019.108870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 12/09/2022]
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Türkcan C, Somtürk B, Özdemir N, Özel M, Çatalkaya R, Aktaş Uygun D, Uygun M, Akgöl S. Quercetin adsorption with imprinted polymeric materials. Journal of Biomaterials Science, Polymer Edition 2019; 30:947-960. [DOI: 10.1080/09205063.2019.1612727] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Ceren Türkcan
- Vocational School, Medical Services and Techniques, Beykent University, Istanbul, Turkey
| | - Burcu Somtürk
- Faculty of Science, Chemistry Department, Erciyes University, Kayseri, Turkey
| | - Nalan Özdemir
- Faculty of Science, Chemistry Department, Erciyes University, Kayseri, Turkey
| | - Merve Özel
- Faculty of Science, Chemistry Department, Erciyes University, Kayseri, Turkey
| | - Rıfat Çatalkaya
- Faculty of Science, Chemistry Department, Erciyes University, Kayseri, Turkey
| | - Deniz Aktaş Uygun
- Faculty of Science and Arts, Chemistry Department, Adnan Menderes University, Aydın, Turkey
| | - Murat Uygun
- Faculty of Science and Arts, Chemistry Department, Adnan Menderes University, Aydın, Turkey
| | - Sinan Akgöl
- Faculty of Science, Biochemistry Department, Ege University, Izmir, Turkey
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Demir EF, Özçalışkan E, Karakaş H, Uygun M, Aktaş Uygun D, Akgöl S, Denizli A. Synthesis and characterization of albumin imprinted polymeric hydrogel membranes for proteomic studies. J Biomater Sci Polym Ed 2018; 29:2218-2236. [PMID: 30303463 DOI: 10.1080/09205063.2018.1534423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this presented study, a novel molecularly imprinted polymeric hydrogel membranes (PHMs) were developed to use for the albumin depletion studies. For this, albumin imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-(L)-phenylalanine methyl ester) polymeric hydrogel membranes [p(HEMA-MAP) PHMs] were synthesized by the photopolymerization technique, and then characterized by SEM, EDX, FT-IR and swelling studies. Synthesized PHMs had spherical structure and the MAP monomer incorporation onto the PHMs was determined by EDX analysis by using nitrogen stoichiometry. Also, the swelling ratio of the albumin imprinted p(HEMA-MAP) PHMs was determined as 215%. The optimum albumin adsorption condition (adsorption capacity, medium pH, adsorption rate, temperature, ionic strength) were studied and the maximum albumin adsorption capacity was found to be as 34.28 mg/g PHMs. Selectivity experiments were also carried out with the presence of the competitive proteins such as lysozyme and amylase, and the results demonstrated that the albumin imprinted p(HEMA-MAP) PHMs showed high affinity towards the BSA molecules than the competitive proteins of lysozyme and amylase. Adsorbed albumin was desorbed from the PHMs by 1.0 M of NaCl, and the reusability of the imprinted PHMs was also demonstrated for five successive adsorption-desorption cycles without any significant loss in the albumin adsorption capacity. As an application, sodium-dodecyl sulfate polyacrylamide gel electrophoresis was used to indicate the albumin depletion efficiency of albumin imprinted p(HEMA-MAP) PHMs. This presented study showed that, these imprinted membranes are promising for proteomic studies and applications, and can be used for the investigations for human diagnostics.
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Affiliation(s)
- Esra Feyzioğlu Demir
- a Vocational School of Health Services, Department of Medical Laboratory Techniques , Izmir University of Economics , Izmir , Turkey
| | - Emir Özçalışkan
- b Faculty of Science, Department of Biochemistry , Ege University , Izmir , Turkey
| | - Hayriye Karakaş
- b Faculty of Science, Department of Biochemistry , Ege University , Izmir , Turkey
| | - Murat Uygun
- c Faculty of Science and Arts, Chemistry Division , Adnan Menderes University , Aydın , Turkey.,d Adnan Menderes University, Nanotechnology Application and Research Center , Aydın , Turkey
| | - Deniz Aktaş Uygun
- c Faculty of Science and Arts, Chemistry Division , Adnan Menderes University , Aydın , Turkey.,d Adnan Menderes University, Nanotechnology Application and Research Center , Aydın , Turkey
| | - Sinan Akgöl
- b Faculty of Science, Department of Biochemistry , Ege University , Izmir , Turkey
| | - Adil Denizli
- e Department of Chemistry , Hacettepe University Faculty of Science , Ankara , Turkey
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Feyzioğlu Demir E, Öztürk Atay N, Koruyucu M, Kök G, Salman Y, Akgöl S. Mannose based polymeric nanoparticles for lectin separation. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1452943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Esra Feyzioğlu Demir
- Vocational School of Health Services, Medical Laboratory Technique Department, Izmir University of Economics, Izmir, Turkey
| | - Nevra Öztürk Atay
- Application and Research Center for Testing and Analysis Department, Ege University, İzmir, Turkey
| | - Meryem Koruyucu
- Faculty of Science,Chemistry Department, Ege University, Izmir, Turkey
| | - Gökhan Kök
- Faculty of Science,Chemistry Department, Ege University, Izmir, Turkey
| | - Yeşim Salman
- Faculty of Science,Chemistry Department, Ege University, Izmir, Turkey
| | - Sinan Akgöl
- Faculty of Science, Biochemistry Department, Ege University, Izmir, Turkey
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Affiliation(s)
- Melis Bayraktaroğlu
- Faculty of Science and Arts, Chemistry Division, Adnan Menderes University, Aydın, Turkey
| | - Hande Orhan
- Faculty of Science and Arts, Chemistry Division, Adnan Menderes University, Aydın, Turkey
| | - Sinem Evli
- Faculty of Science and Arts, Chemistry Division, Adnan Menderes University, Aydın, Turkey
| | - Sinan Akgöl
- Faculty of Science, Biochemistry Division, Ege University, İzmir, Turkey
| | - Deniz Aktaş Uygun
- Faculty of Science and Arts, Chemistry Division, Adnan Menderes University, Aydın, Turkey
- Nanotechnology Application and Research Center, Adnan Menderes University, Aydın, Turkey
| | - Murat Uygun
- Faculty of Science and Arts, Chemistry Division, Adnan Menderes University, Aydın, Turkey
- Nanotechnology Application and Research Center, Adnan Menderes University, Aydın, Turkey
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Bakan N, Gülcemal S, Akgöl S, Hoet P, Yavaşoğlu NK. In vitro toxic effects of L-glutamic acid-g-p(HEMA) polymeric nanoparticle. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Demir EF, Kuru CI, Uygun M, Aktaş Uygun D, Akgöl S. Antibody separation using lectin modified poly(HEMA-EDMA) hydrogel membranes. Journal of Biomaterials Science, Polymer Edition 2017; 29:344-359. [DOI: 10.1080/09205063.2017.1417197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Esra Feyzioğlu Demir
- Medical Laboratory Technique, Vocational School of Health Services, Izmir University of Economics, Izmir, Turkey
| | - Cansu Ilke Kuru
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey
| | - Murat Uygun
- Department of Chemistry, Faculty of Science and Arts, Adnan Menderes University, Aydın, Turkey
- Nanotechnology Application and Research Center, Adnan Menderes University, Aydın, Turkey
| | - Deniz Aktaş Uygun
- Department of Chemistry, Faculty of Science and Arts, Adnan Menderes University, Aydın, Turkey
- Nanotechnology Application and Research Center, Adnan Menderes University, Aydın, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, Izmir, Turkey
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Türkcan Kayhan C, Zeynep Ural F, Koruyucu M, Gül Salman Y, Uygun M, Aktaş Uygun D, Akgöl S, Denizli A. DNA isolation by galactoacrylate-based nano-poly(HEMA-co-Gal-OPA) nanopolymers. J Biomater Sci Polym Ed 2017; 28:1469-1479. [PMID: 28504016 DOI: 10.1080/09205063.2017.1330587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Isolation of DNA is one of the important processes for biotechnological applications such as investigation of DNA structures and functions, recombinant DNA preparations, identification of genetic factors and diagnosis and treatment of genetic disorders. The aim of this study was to synthesis and characterizes the galactoacrylate based nanopolymers with high surface area and to investigate the usability of these synthesized nanopolymers for DNA isolation studies. Nanopolymers were synthesized by the surfactant free emulsion polymerization technique by using the monomers of 2-hydroxyl ethylmethacrylate and 6-O-(2'-hydroxy-3'-acryloyloxypropyl)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose. Galactoacrylate origin of these newly synthesized nanopolymers increased the interaction between DNA and nanopolymers. Prepared nanopolymers were characterized by SEM, FT-IR and ZETA sizer analysis. Synthesized nanopolymers were spherical, and their average particle size was about 246.8 nm. Adsorption of DNA onto galactoacrylate based nanopolymers was investigated by using different pHs, temperatures, ionic strength, DNA concentrations and desorption studies and maximum DNA adsorption was found to be as 567.12 mg/g polymer at 25 °C, in pH 5.0 acetate buffer. Reusability was investigated for 5 successive reuse and DNA adsorption capacity decreased only about 10% at the end of the 5th reuse.
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Affiliation(s)
- Ceren Türkcan Kayhan
- a Medical Laboratory Technique , Vocational School of Health Services, Izmir University of Economics , İzmir , Turkey
| | - Fulden Zeynep Ural
- b Faculty of Science, Biochemistry Division , Ege University , İzmir , Turkey
| | - Meryem Koruyucu
- c Faculty of Science, Chemistry Division , Ege University , İzmir , Turkey
| | - Yeşim Gül Salman
- c Faculty of Science, Chemistry Division , Ege University , İzmir , Turkey
| | - Murat Uygun
- d Faculty of Science and Arts, Chemistry Division , Adnan Menderes University , Aydın , Turkey.,e Nanotechnology Application and Research Center , Adnan Menderes University , Aydın , Turkey
| | - Deniz Aktaş Uygun
- d Faculty of Science and Arts, Chemistry Division , Adnan Menderes University , Aydın , Turkey.,e Nanotechnology Application and Research Center , Adnan Menderes University , Aydın , Turkey
| | - Sinan Akgöl
- b Faculty of Science, Biochemistry Division , Ege University , İzmir , Turkey
| | - Adil Denizli
- f Faculty of Science, Chemistry Division , Hacettepe University , Ankara , Turkey
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Demir ME, Aktaş Uygun D, Erdağ A, Akgöl S. A new support material for IgG adsorption: Syntrichia papillosissima (Copp.) Loeske. Artif Cells Nanomed Biotechnol 2017; 45:1363-1368. [PMID: 28271902 DOI: 10.1080/21691401.2017.1296848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In this presented work, Syntrichia papillosissima (Copp.) Loeske (S. papillosissima) was used as a natural phytosorbent for IgG purification. These moss species were collected for the natural habitat and prepared for IgG adsorption studies by cleaning, drying, and grinding to uniform size. Syntrichia papillosissima samples were characterized by using FTIR and SEM studies. Functional groups of S. papillosissima were identified by FTIR analysis, while surface characteristics were determined by SEM studies. A batch system was used for the adsorption of IgG onto S. papillosissima surface and physical conditions of the IgG adsorption medium were investigated by modifying the pH, IgG concentration and temperature. Maximum IgG adsorption onto S. papillosissima was found to be 68.01 mg/g moss by using pH 5.0 buffer system. Adsorption kinetic isotherms were also studied and it was found that, Langmuir adsorption model was appropriate for this adsorption study. Reusability profile of S. papillosissima was also investigated and IgG adsorption capacity did not decrease significantly after 5 reuse studies. Results indicated that S. papillosissima species have the capacity to be used as biosorbent for IgG purification, with its low cost, natural and biodegradable structure.
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Affiliation(s)
- Mithat Evrim Demir
- a Buharkent Vocational and Training School , Adnan Menderes University , Aydın , Turkey
| | - Deniz Aktaş Uygun
- b Department of Chemistry, Faculty of Arts and Science , Adnan Menderes University , Aydın , Turkey
| | - Adnan Erdağ
- c Department of Biology, Faculty of Arts and Science , Adnan Menderes University , Aydın , Turkey
| | - Sinan Akgöl
- d Biochemistry Department, Faculty of Science , Ege University , İzmir , Turkey
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Inanan T, Tüzmen N, Akgöl S, Denizli A. Selective cholesterol adsorption by molecular imprinted polymeric nanospheres and application to GIMS. Int J Biol Macromol 2016; 92:451-460. [PMID: 27411294 DOI: 10.1016/j.ijbiomac.2016.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/22/2016] [Accepted: 07/02/2016] [Indexed: 11/25/2022]
Abstract
Molecular imprinted polymers (MIPs) are tailor-made materials with selective recognition to the target. The goals of this study were to prepare cholesterol imprinted polymeric nanospheres (CIPNs) and optimize their adsorption parameters and also to use CIPNs for adsorption of cholesterol (CHO), which is an important physiological biomacromolecule, from gastrointestinal mimicking solution (GIMS). Pre-polymerization complex was prepared using CHO as template and N-methacryloylamido-(l)-phenylalanine methyl ester (MAPA). This complex was polymerized with 2-hydroxyethyl methacrylate (HEMA). CHO was removed by MeOH and tetrahydrofuran (THF). Adsorption studies were performed after chacterization studies to interrogate the effects of time, initial concentration, temperature, and ionic strength on CHO adsorption onto CIPNs. Maximum adsorption capacity (714.17mg/g) was higher than that of cholesterol imprinted polymers in literature. Pseudo-second-order kinetics and Langmuir isotherm fitted best with the adsorption onto CIPNs. 86% of adsorbed cholesterol was desorbed with MeOH:HAc (80:20, v/v) and CIPNs were used in adsorption-desorption cycle for 5-times with a decrease as 12.28%. CHO analogues; estron, estradiol, testosterone, and progesterone were used for competitive adsorption. The relative selectivity coefficients of CINPs for cholesterol/estron and cholesterol/testosterone were 3.84 and 10.47 times greater than the one of non-imprinted polymeric nanospheres (NIPNs) in methanol, respectively.
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Affiliation(s)
- Tülden Inanan
- Aksaray University, Technical Vocational School of Higher Education, Department of Chemistry and Chemical Processing Technology, Aksaray, Turkey; Dokuz Eylul University, The Graduate School of Natural and Applied Sciences, Izmir, Turkey.
| | - Nalan Tüzmen
- Dokuz Eylul University, Faculty of Science, Department of Chemistry, Izmir, Turkey
| | - Sinan Akgöl
- Ege University, Faculty of Science, Department of Biochemistry, Izmir, Turkey
| | - Adil Denizli
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey
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Caka M, Türkcan C, Aktaş Uygun D, Uygun M, Akgöl S, Denizli A. Controlled release of curcumin from poly(HEMA-MAPA) membrane. Artificial Cells, Nanomedicine, and Biotechnology 2016; 45:426-431. [DOI: 10.3109/21691401.2016.1160913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Müşerref Caka
- Department of Biochemistry, Ege University, İzmir, Turkey
| | - Ceren Türkcan
- Department of Biochemistry, Ege University, İzmir, Turkey
| | | | - Murat Uygun
- Koçarlı Vocational and Training School, Adnan Menderes University, Aydın, Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Ege University, İzmir, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey
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Uygun M, Akduman B, Ergönül B, Aktaş Uygun D, Akgöl S, Denizli A. Immobilization of amyloglucosidase onto macroporous cryogels for continuous glucose production from starch. Journal of Biomaterials Science, Polymer Edition 2015; 26:1112-25. [DOI: 10.1080/09205063.2015.1078928] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Toprak A, Görgün C, Kuru Cİ, Türkcan C, Uygun M, Akgöl S. Boronate affinity nanoparticles for RNA isolation. Materials Science and Engineering: C 2015; 50:251-6. [DOI: 10.1016/j.msec.2014.11.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 10/03/2014] [Accepted: 11/10/2014] [Indexed: 11/25/2022]
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Abstract
In this presented work, poly(HEMA-GMA) cryogel was synthesized and used for the immobilization of alcohol dehydrogenase. For this, synthesized cryogels were functionalized with iminodiacetic acid and chelated with Zn(2+). This metal-chelated cryogels were used for the alcohol dehydrogenase immobilization and their kinetic parameters were compared with free enzyme. Optimum pH was found to be 7.0 for both immobilized and free enzyme preparations, while temperature optima for free and immobilized alcohol dehydrogenase was 25 °C. Kinetic constants such as K(m), V(max), and k(cat) for free and immobilized form of alcohol dehydrogenase were also investigated. k(cat) value of free enzyme was found to be 3743.9 min(-1), while k(cat) for immobilized enzyme was 3165.7 min(-1). Thermal stability of the free and immobilized alcohol dehydrogenase was studied and stability of the immobilized enzyme was found to be higher than free form. Also, operational stability and reusability profile of the immobilized alcohol dehydrogenase were investigated. Finally, storage stability of the free and immobilized alcohol dehydrogenase was studied, and at the end of the 60 days storage, it was demonstrated that, immobilized alcohol dehydrogenase was exhibited high stability than that of free enzyme.
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Şenay RH, Gökalp SM, Türker E, Feyzioğlu E, Aslan A, Akgöl S. A new morphological approach for removing acid dye from leather waste water: preparation and characterization of metal-chelated spherical particulated membranes (SPMs). J Environ Manage 2015; 151:295-302. [PMID: 25585142 DOI: 10.1016/j.jenvman.2014.12.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 12/24/2014] [Accepted: 12/27/2014] [Indexed: 06/04/2023]
Abstract
In this study, p(HEMA-GMA) poly(hydroxyethyl methacrylate-co-glycidyl methacrylate) spherical particulated membranes (SPMs) were produced by UV-photopolymerization and the synthesized SPMs were coupled with iminodiacetic acid (IDA). Finally the novel SPMs were chelated with Cr(III) ions as ligand and used for removing acid black 210 dye. Characterizations of the metal-chelated SPMs were made by SEM, FTIR and swelling test. The water absorption capacities and acid dye adsorption properties of the SPMs were investigated and the results were 245.0, 50.0, 55.0 and 51.9% for p(HEMA), p(HEMA-GMA), p(HEMA-GMA)-IDA and p(HEMA-GMA)-IDA-Cr(III) SPMs respectively. Adsorption properties of the p(HEMA-GMA)-IDA-Cr(III) SPMs were investigated under different conditions such as different initial dye concentrations and pH. The optimum pH was observed at 4.3 and the maximum adsorption capacity was determined as 885.14 mg/g at about 8000 ppm initial dye concentration. The concentrations of the dyes were determined using a UV/Vis Spectrophotometer at a wavelength of 435 nm. Reusability of p(HEMA-GMA)-IDA-Cr(III) SPMs was also shown for five adsorption-desorption cycles without considerable decrease in its adsorption capacity. Finally, the results showed that the metal-chelated p(HEMA-GMA)-IDA SPMs were effective sorbent systems removing acid dye from leather waste water.
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Affiliation(s)
- Raziye Hilal Şenay
- Ege University Faculty of Science, Biochemisty Department, İzmir, Turkey.
| | - Safiye Meriç Gökalp
- Ege University Faculty of Engineering, Leather Engineering Department, İzmir, Turkey.
| | - Evren Türker
- Ege University Faculty of Engineering, Leather Engineering Department, İzmir, Turkey.
| | - Esra Feyzioğlu
- Ege University Faculty of Science, Biochemisty Department, İzmir, Turkey.
| | - Ahmet Aslan
- Ege University Faculty of Engineering, Leather Engineering Department, İzmir, Turkey.
| | - Sinan Akgöl
- Ege University Faculty of Science, Biochemisty Department, İzmir, Turkey.
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Uygun M, Akduman B, Uygun DA, Akgöl S, Denizli A. Dye functionalized cryogel columns for reversible lysozyme adsorption. Journal of Biomaterials Science, Polymer Edition 2015; 26:277-89. [DOI: 10.1080/09205063.2014.997560] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kuru Cİ, Türkcan C, Uygun M, Okutucu B, Akgöl S. Preparation and characterization of silanized poly(HEMA) nanoparticles for recognition of sugars. Artificial Cells, Nanomedicine, and Biotechnology 2014; 44:835-41. [DOI: 10.3109/21691401.2014.984302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Okutucu B, Vurmaz D, Tuncal A, Türkcan C, Aktaş Uygun D, Akgöl S. Boronate affinity nanoparticles for nucleoside separation. Artificial Cells, Nanomedicine, and Biotechnology 2014; 44:322-7. [DOI: 10.3109/21691401.2014.948550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Akduman B, Uygun M, Uygun DA, Akgöl S, Denizli A. Purification of yeast alcohol dehydrogenase by using immobilized metal affinity cryogels. Materials Science and Engineering: C 2013; 33:4842-8. [DOI: 10.1016/j.msec.2013.08.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 07/19/2013] [Accepted: 08/05/2013] [Indexed: 11/26/2022]
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Uygun M, Şenay RH, Avcıbaşı N, Akgöl S. Poly(HEMA-co-NBMI) Monolithic Cryogel Columns for IgG Adsorption. Appl Biochem Biotechnol 2013; 172:1574-84. [DOI: 10.1007/s12010-013-0624-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 10/30/2013] [Indexed: 10/26/2022]
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Avc&&baş&& U, Demiroğlu H, Ediz M, Akal&&n HA, Özçal&&şkan E, Şenay H, Türkcan C, Özcan Y, Akgöl S, Avcıbaşı N. Radiolabeling of new generation magnetic poly(HEMA-MAPA) nanoparticles with131I and preliminary investigation of its radiopharmaceutical potential using albino Wistar rats. J Labelled Comp Radiopharm 2013; 56:708-16. [DOI: 10.1002/jlcr.3108] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 02/06/2023]
Affiliation(s)
- Uğur Avc&&baş&&
- Department of Chemistry, Faculty of Art and Science; Celal Bayar University; 45030 Manisa Turkey
| | - Hasan Demiroğlu
- Department of Chemistry, Faculty of Art and Science; Celal Bayar University; 45030 Manisa Turkey
| | - Melis Ediz
- Department of Chemistry, Faculty of Art and Science; Celal Bayar University; 45030 Manisa Turkey
| | - Hilmi Arkut Akal&&n
- Department of Chemistry, Faculty of Art and Science; Celal Bayar University; 45030 Manisa Turkey
| | - Emir Özçal&&şkan
- Department of Biochemistry, Faculty of Science; Ege University; 35100 İzmir Turkey
| | - Hilal Şenay
- Department of Biochemistry, Faculty of Science; Ege University; 35100 İzmir Turkey
| | - Ceren Türkcan
- Department of Biochemistry, Faculty of Science; Ege University; 35100 İzmir Turkey
| | - Yeşim Özcan
- Department of Biochemistry, Faculty of Science; Ege University; 35100 İzmir Turkey
| | - Sinan Akgöl
- Department of Biochemistry, Faculty of Science; Ege University; 35100 İzmir Turkey
| | - Nesibe Avcıbaşı
- Ege University, Ege Higher Vocational School; 35100 İzmir Turkey
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Türkmen D, Bereli N, Çorman ME, Shaikh H, Akgöl S, Denizli A. Molecular imprinted magnetic nanoparticles for controlled delivery of mitomycin C. Artificial Cells, Nanomedicine, and Biotechnology 2013; 42:316-22. [DOI: 10.3109/21691401.2013.823094] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Türkcan C, Uygun DA, Akgöl S, Denizli A. Reactive red 120 and NI(II) derived poly(2-hydroxyethyl methacrylate) nanoparticles for urease adsorption. J Appl Polym Sci 2013. [DOI: 10.1002/app.39757] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ceren Türkcan
- Department of Biochemistry; Faculty of Science; Ege University; 35100 Bornova Izmir Turkey
| | - Deniz Aktaş Uygun
- Department of Chemistry; Faculty of Science And Arts; Adnan Menderes University; Aydın Turkey
| | - Sinan Akgöl
- Department of Biochemistry; Faculty of Science; Ege University; 35100 Bornova Izmir Turkey
| | - Adil Denizli
- Biochemistry Division; Department of Chemistry; Hacettepe University; Beytepe Ankara Turkey
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Altunbaş C, Uygun M, Uygun DA, Akgöl S, Denizli A. Immobilization of inulinase on concanavalin A-attached super macroporous cryogel for production of high-fructose syrup. Appl Biochem Biotechnol 2013; 170:1909-21. [PMID: 23780342 DOI: 10.1007/s12010-013-0322-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/03/2013] [Indexed: 11/26/2022]
Abstract
In this study, concanavalin A (Con A)-attached poly(ethylene glycol dimethacrylate) [poly(EGDMA)] cryogels were used for immobilization of Aspergillus niger inulinase. For this purposes, the monolithic cryogel column was prepared by radical cryocopolymerization of EGDMA as a monomer and N,N'-methylene bisacrylamide as a crosslinker. Then, Con A was attached by covalent binding onto amino-activated poly(EGDMA) cryogel via glutaraldehyde activation. Characterization of cryogels was performed by FTIR, EDX, and SEM studies. Poly(EGDMA) cryogels were highly porous and pore size was found to be approximately 50-100 μm. Con A-attached poly(EGDMA) cryogels was used in the adsorption of inulinase from aqueous solutions. Adsorption of inulinase on the Con A-attached poly(EGDMA) cryogel was performed in continuous system and the effects of pH, inulinase concentration, and flow rate on adsorption were investigated. The maximum amount of inulinase adsorption was calculated to be 27.85 mg/g cryogel at 1.0 mg/mL inulinase concentration and in acetate buffer at pH 4.0. Immobilized inulinase was effectively used in continuous preparation of high-fructose syrup. Inulin was converted to fructose in a continuous system and released fructose concentration was found to be 0.23 mg/mL at the end of 5 min of hydrolysis. High-fructose content of the syrup was demonstrated by thin layer chromatography.
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Affiliation(s)
- Canan Altunbaş
- Chemistry Department, Adnan Menderes University, Aydın, Turkey
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Uygun M, Akduman B, Akgöl S, Denizli A. A New Metal-Chelated Cryogel for Reversible Immobilization of Urease. Appl Biochem Biotechnol 2013; 170:1815-26. [DOI: 10.1007/s12010-013-0316-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 05/27/2013] [Indexed: 10/26/2022]
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Say R, Şenay RH, Biçen Ö, Ersöz A, Şişman Yılmaz F, Akgöl S, Denizli A. Polymeric amylase nanoparticles as a new semi-synthetic enzyme system for hydrolysis of starch. Materials Science and Engineering: C 2013; 33:1900-6. [DOI: 10.1016/j.msec.2012.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 10/06/2012] [Accepted: 12/16/2012] [Indexed: 01/28/2023]
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Kaya N, Aktaş Uygun D, Akgöl S, Denizli A. Purification of alcohol dehydrogenase from Saccharomyces cerevisiae using magnetic dye-ligand affinity nanostructures. Appl Biochem Biotechnol 2013; 169:2153-64. [PMID: 23408231 DOI: 10.1007/s12010-013-0130-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Accepted: 01/31/2013] [Indexed: 11/25/2022]
Abstract
Reactive Green 19 was covalently immobilized onto magnetic nanostructures for purification of alcohol dehydrogenase from Saccharomyces cerevisiae. The Reactive Green 19 immobilized magnetic nanostructures were characterized by Fourier transform infrared spectroscopy, electron spin resonance, atomic force microscope, and energy dispersive X-ray analysis. Particle size of nanostructures was found to be roughly 70 nm. Alcohol dehydrogenase adsorption experiments were investigated under different conditions in batch system (i.e., medium pH, alcohol dehydrogenase concentration, temperature, and ionic strength). Maximum alcohol dehydrogenase adsorption capacity was found to be 176.09 mg/g polymer while nonspecific alcohol dehydrogenase adsorption onto plain magnetic nanostructures was negligible (19.4 mg/g polymer). Alcohol dehydrogenase molecules were desorbed by using 1.0 M NaCl with 98.4 % recovery. Alcohol dehydrogenase from S. cerevisiae was purified 45.63-fold in single step with dye-immobilized magnetic nanostructures, and purity of alcohol dehydrogenase was shown by silver-stained sodium dodecyl sulfate-polyacrylamide gel electrophoresis.
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Affiliation(s)
- Nazife Kaya
- Faculty of Science and Arts, Chemistry Department, Adnan Menderes University, Aydin, Turkey
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Türkoğlu EA, Yavuz H, Uzun L, Akgöl S, Denizli A. The fabrication of nanosensor-based surface plasmon resonance for IgG detection. Artif Cells Nanomed Biotechnol 2012; 41:213-21. [PMID: 23110360 DOI: 10.3109/10731199.2012.716066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Poly(2-hydroxyethyl methacrylate)/3-(2-imidazoline-1-yl)propyl(triethoxysilane) (PHEMA/IMEO) nanoparticles were attached on surface plasmon resonance (SPR) sensor for the real-time detection of human immunoglobulin G (IgG) in human serum. The PHEMA/IMEO nanoparticles-attached SPR sensor was characterized by Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), and contact angle measurements. IgG detection studies were performed using aqueous IgG solutions at different concentrations. In order to show the selectivity and specificity of the SPR sensor, competitive kinetic analyses were performed using IgG, albumin, hemoglobin in singular and competitive manner. Finally, IgG detection in human serum was carried out.
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Perçin I, Karakoç V, Akgöl S, Aksöz E, Denizli A. Poly(hydroxyethyl methacrylate) based magnetic nanoparticles for plasmid DNA purification from Escherichia coli lysate. Materials Science and Engineering: C 2012. [DOI: 10.1016/j.msec.2012.02.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Çorman ME, Akgöl S. Preparation of molecular imprinted hydrophobic polymeric nanoparticles having structural memories for lysozyme recognition. ACTA ACUST UNITED AC 2012; 40:245-55. [DOI: 10.3109/10731199.2012.657204] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Uygun M, Uygun DA, Ozçalışkan E, Akgöl S, Denizli A. Concanavalin A immobilized poly(ethylene glycol dimethacrylate) based affinity cryogel matrix and usability of invertase immobilization. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 887-888:73-8. [PMID: 22309777 DOI: 10.1016/j.jchromb.2012.01.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 01/11/2012] [Accepted: 01/17/2012] [Indexed: 11/29/2022]
Abstract
Concanavalin A (Con A) immobilized supermacroporous poly(ethylene glycol dimethacrylate) [poly(EGDMA)] monolithic cryogel column was prepared by radical cryocopolymerization of EGDMA as a monomer and N,N'-methylene-bisacrylamide as a crosslinker. Bioligand Con A was then immobilized by covalent binding onto poly(EGDMA) cryogel via glutaraldehyde activation [Con A-poly(EGDMA)]. Con A-poly(EGDMA) cryogel was characterized by swelling studies and scanning electron microscopy. The monolithic cryogel contained a continuous polymeric matrix having interconnected pores of 10-50 μm size. The equilibrium swelling degree of the cryogel was 15.01 g H₂O/g dry cryogel. Con A-poly(EGDMA) cryogel was used in the adsorption/desorption of invertase from aqueous solutions. The maximum amount of invertase adsorption from aqueous solution in acetate buffer was 55.45 mg/g polymer at pH 5.0. Con A-poly(EGDMA) cryogels were used for repetitive adsorption/desorption of invertase without noticeable loss in invertase adsorption capacity after 10 cycles.
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Affiliation(s)
- Murat Uygun
- Adnan Menderes University, Faculty of Science & Arts, Chemistry Department, Aydin, Turkey
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Uygun DA, Öztürk N, Akgöl S, Denizli A. Novel magnetic nanoparticles for the hydrolysis of starch with Bacillus licheniformis α-amylase. J Appl Polym Sci 2011. [DOI: 10.1002/app.33879] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Uygun DA, Çorman ME, Öztürk N, Akgöl S, Denizli A. Poly(hydroxyethyl methacrylate-co-methacryloylamidotryptophane) nanospheres and their utilization as affinity adsorbents for porcine pancreas lipase adsorption. Materials Science and Engineering: C 2010. [DOI: 10.1016/j.msec.2010.07.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Avcibaşi N, Uygun M, Çorman ME, Akgöl S, Denizli A. Application of Supermacroporous Monolithic Hydrophobic Cryogel in Capturing of Albumin. Appl Biochem Biotechnol 2010; 162:2232-43. [DOI: 10.1007/s12010-010-8997-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2010] [Accepted: 05/19/2010] [Indexed: 10/19/2022]
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Çorman ME, Öztürk N, Tüzmen N, Akgöl S, Denizli A. Magnetic polymeric nanospheres as an immobilized metal affinity chromatography (IMAC) support for catalase. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2009.11.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Çorman ME, Öztürk N, Bereli N, Akgöl S, Denizli A. Preparation of nanoparticles which contains histidine for immobilization of Trametes versicolor laccase. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.12.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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