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Çobandede Z, Çulha M. Ultrasound stimulated piezoelectric barium titanate and boron nitride nanotubes in nonconductive poly- ε-caprolactone nanofibrous scaffold for bone tissue engineering. Nanotechnology 2024; 35:135101. [PMID: 38081081 DOI: 10.1088/1361-6528/ad1446] [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: 09/15/2023] [Accepted: 12/10/2023] [Indexed: 01/10/2024]
Abstract
Nanomaterials can provide unique solutions for the problems experienced in tissue engineering by improving a scaffold's physico-bio-chemical properties. With its piezoelectric property, bone is an active tissue with easy adaptation and remodeling through complicated mechanisms of electromechanical operations. Although poly(ε-caprolactone) (PCL) is an excellent polymer for bone tissue engineering, it is lack of conductivity. In this study, piezoelectric barium titanates (BaTiO3) and boron nitride nanotubes (BNNTs) are used as ultrasound (US) stimulated piezoelectric components in PCL to mimic piezoelectric nature of bone tissue. Electric-responsive Human Osteoblast cells on the scaffolds were stimulated by applying low-frequency US during cell growth. Biocompatibility, cell adhesion, alkaline phosphatase activities and mineralization of osteoblast cells on piezo-composite scaffolds were investigated. BaTiO3or BNNTs as reinforcement agents improved physical and mechanical properties of PCL scaffolds.In vitrostudies show that the use of BaTiO3or BNNTs as additives in non-conductive scaffolds significantly induces and increases the osteogenic activities even without US stimulation. Although BaTiO3is one of the best piezoelectric materials, the improvement is more dramatic in the case of BNNTs with the increased mineralization, and excellent chemical and mechanical properties.
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Affiliation(s)
- Zehra Çobandede
- Department of Genetics and Bioenginering, Yeditepe University, Atasehir, Istanbul, Turkey
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul, 34956, Turkey
| | - Mustafa Çulha
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul, 34956, Turkey
- Department of Chemistry and Biochemistry, Augusta University, Augusta, GA, United States of America
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Avci E, Yilmaz H, Sahiner N, Tuna BG, Cicekdal MB, Eser M, Basak K, Altıntoprak F, Zengin I, Dogan S, Çulha M. Label-Free Surface Enhanced Raman Spectroscopy for Cancer Detection. Cancers (Basel) 2022; 14:cancers14205021. [PMID: 36291805 PMCID: PMC9600112 DOI: 10.3390/cancers14205021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/22/2022] [Revised: 10/04/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Blood is considered a rich reservoir of biomarkers for disease diagnosis. Surface-enhanced Raman scattering (SERS) is known for its high sensitivity and has been successfully employed to differentiate blood samples from cancer patients versus healthy individuals. Different from previous reports, this study aims at investigating the reliability of the observed results by varying several parameters influencing the observed spectra. Thus, blood taken from 30 healthy individuals as the control group, 30 patients with different types of cancers, and 15 patients with various types of chronic diseases were used in the study. The results revealed that spectral differences in the cancer group was directly related to the presence of cancer-related biomarkers. Although data were obtained from only small group of patients, the recorded sensitivity and specificity values clearly show the power of the technique to detect cancer. Abstract Blood is a vital reservoir housing numerous disease-related metabolites and cellular components. Thus, it is also of interest for cancer diagnosis. Surface-enhanced Raman spectroscopy (SERS) is widely used for molecular detection due to its very high sensitivity and multiplexing properties. Its real potential for cancer diagnosis is not yet clear. In this study, using silver nanoparticles (AgNPs) as substrates, a number of experimental parameters and scenarios were tested to disclose the potential for this technique for cancer diagnosis. The discrimination of serum samples from cancer patients, healthy individuals and patients with chronic diseases was successfully demonstrated with over 90% diagnostic accuracies. Moreover, the SERS spectra of the blood serum samples obtained from cancer patients before and after tumor removal were compared. It was found that the spectral pattern for serum from cancer patients evolved into the spectral pattern observed with serum from healthy individuals after the removal of tumors. The data strongly suggests that the technique has a tremendous potential for cancer detection and screening bringing the possibility of early detection onto the table.
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Affiliation(s)
- Ertug Avci
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
| | - Hulya Yilmaz
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul 34956, Turkey
| | - Nurettin Sahiner
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Department of Chemistry, Canakkale Onsekiz Mart University, Canakkale 17020, Turkey
| | - Bilge Guvenc Tuna
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul 34755, Turkey
| | - Munevver Burcu Cicekdal
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul 34755, Turkey
| | - Mehmet Eser
- Department of General Surgery, School of Medicine, Istinye University, Istanbul 34010, Turkey
| | - Kayhan Basak
- Department of Pathology, Kartal Dr. Lütfi Kırdar City Hospital, University of Health Sciences, Istanbul 34865, Turkey
| | - Fatih Altıntoprak
- Department of General Surgery, Research and Educational Hospital, Sakarya University, Serdivan 54100, Turkey
| | - Ismail Zengin
- Department of General Surgery, Research and Educational Hospital, Sakarya University, Serdivan 54100, Turkey
| | - Soner Dogan
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul 34956, Turkey
- The Knight Cancer Institute, Cancer Early Detection Advanced Research Center (CEDAR), Oregon Health and Science University, Portland, OR 97239, USA
- Department of Chemistry and Physics, College of Science and Mathematics, Augusta University, Augusta, GA 30912, USA
- Correspondence: or or
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Mert S, Sancak S, Aydın H, Fersahoğlu AT, Somay A, Özkan F, Çulha M. Development of a SERS based cancer diagnosis approach employing cryosectioned thyroid tissue samples on PDMS. Nanomedicine 2022; 44:102577. [PMID: 35716872 DOI: 10.1016/j.nano.2022.102577] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 02/27/2022] [Revised: 05/30/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
An efficient SERS based novel analytical approach named Cryosectioned-PDMS was developed systematically and evaluated applying on 64 thyroid biopsy samples. To utilize thyroid biopsy samples, a 20-μl volume of h-AgNPs suspension was dropped on a 5-μm thick cryosectioned biopsy specimen placed on the PDMS coated glass slide. The SERS spectra from a 10 × 10 points array acquired by mapping 22.5 μm × 22.5 μm sized area from suspended dried droplets placed on the tissue surface. The probability of correctly predicted performance for diagnosis of malignant, benign and healthy tissues was resulted in the accuracy of 100 % for the spectral bands at 667, 724, 920, 960, 1052, 1096, 1315 and 1457 cm-1 using PCA-fed LDA machine learning. The Cryosectioned-PDMS biophotonic approach with PCA-LDA predictive model demonstrated that the vibrational signatures can accurately recognize the fingerprint of cancer pathology from a healthy one with a simple and fast sample preparation methodology.
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Affiliation(s)
- Sevda Mert
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey; Department of Genetics and Bioengineering, Faculty of Engineering, Istanbul Okan University, Istanbul 34959, Turkey
| | - Seda Sancak
- Department of Internal Medicine, Endocrinology and Metabolism Disorders, Fatih Sultan Mehmet Education and Research Hospital, University of Health Sciences, Istanbul 34752, Turkey
| | - Hasan Aydın
- Department of Internal Medicine, Section of Endocrinology and Metabolism, Yeditepe University Hospital, Istanbul 34752, Turkey
| | - Ayşe Tuba Fersahoğlu
- General Surgery Clinic, Fatih Sultan Mehmet Education and Research Hospital, University of Health Sciences, Istanbul 34752, Turkey
| | - Adnan Somay
- Department of Pathology, Fatih Sultan Mehmet Education and Research Hospital, University of Health Sciences, Istanbul 34752, Turkey
| | - Ferda Özkan
- Department of Pathology, Yeditepe University Hospital, Istanbul 34752, Turkey
| | - Mustafa Çulha
- The Knight Cancer Institute, Cancer Early Detection Advanced Research Center (CEDAR), Oregon Health and Science University, Portland 97239, OR, USA; Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey; Department of Chemistry & Physics, Augusta University, Augusta, GA 30912, USA.
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Demiral A, İrem Goralı S, Yılmaz H, Verimli N, Çulha M, Sibel Erdem S. Stimuli-Responsive Theranostic System: A Promising Approach for Augmented Multimodal Imaging and Efficient Drug Release. Eur J Pharm Biopharm 2022; 177:9-23. [DOI: 10.1016/j.ejpb.2022.05.021] [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] [Received: 01/24/2022] [Revised: 04/22/2022] [Accepted: 05/27/2022] [Indexed: 11/04/2022]
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Tarhan T, Şen Ö, Ciofani ME, Yılmaz D, Çulha M. Synthesis and characterization of silver nanoparticles decorated polydopamine coated hexagonal boron nitride and its effect on wound healing. J Trace Elem Med Biol 2021; 67:126774. [PMID: 33984543 DOI: 10.1016/j.jtemb.2021.126774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 04/07/2021] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Wound healing is an essential physiological process involving many cell types and their products acting in a marvellous harmony to repair damaged tissues. During the healing process, cellular proliferation and extracellular matrix remodelling stages could be interrupted by undesired factors including microorganisms and altered metabolic activities. In such a case, the process requires some external stimulants to accelerate or remediate the healing stages. METHODS In this study, we report a multifunctional wound healing stimulating agent. In this context, hexagonal boron nitride (hBN) nanoparticles, silver nanoparticles (AgNPs) and polydopamine(pdopa) were used through mussel-inspired chemistry of dopamine to obtain pdopa coated hBN (hBN@pdopa) and AgNPs decorated hBN@pdopa (hBN@pdopa-AgNPs). These two nanostructures were investigated to observe stages of healing. RESULTS AgNPs were chosen for inflammation reduction and hBN for induced cell proliferation and migration. In in vitro experiments, firstly, high cellular uptake capacity and biocompatibility of hBN@pdopa and hBN@pdopa-AgNPs were evaluated. They were also tested for their reaction against increased concentration of reactive oxygen species (ROS) in injured cells. Finally, their effect on cellular migration, intracellular tube formation and F-actin organization were monitored by light and confocal microscopy, respectively. CONCLUSION The results clearly indicate that the hBN@pdopa-AgNPs significantly decrease ROS production, promote wound closure, and reorganize tube formation in cells.
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Affiliation(s)
- Tuba Tarhan
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul, 34755, Turkey; Mardin Artuklu University, Vocational High School of Health Services, 47100, Mardin, Turkey
| | - Özlem Şen
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul, 34755, Turkey
| | - Melis Emanet Ciofani
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul, 34755, Turkey
| | - Deniz Yılmaz
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul, 34755, Turkey
| | - Mustafa Çulha
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul, 34755, Turkey; Oregon Health and Science University, The Knight Cancer Research Institute, Cancer Early Detection Advanced Research (CEDAR) Center, Portland, OR, 97239, USA; Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul, 34956, Turkey.
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Tarhan T, Dündar A, Okumuş V, Çulha M. Synthesis and Characterization of Bionanomaterials and Evaluation of Their Antioxidant, Antibacterial, and DNA Cleavage Activities. ChemistrySelect 2021. [DOI: 10.1002/slct.202004773] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tuba Tarhan
- Mardin Artuklu University Vocational High School of Health Services 47100 Mardin Turkey
| | - Abdurrahman Dündar
- Mardin Artuklu University Vocational High School of Health Services 47100 Mardin Turkey
| | - Veysi Okumuş
- Department of Biology Faculty of Science Siirt University 56100 Siirt Turkey
| | - Mustafa Çulha
- Sabancı University Materials Science and Nanoengineering 34956 Tuzla/İstanbul Turkey
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Keleştemur S, Çobandede Z, Çulha M. Biofilm formation of clinically important microorganisms on 2D and 3D poly (methyl methacrylate) substrates: A surface-enhanced Raman scattering study. Colloids Surf B Biointerfaces 2020; 188:110765. [DOI: 10.1016/j.colsurfb.2019.110765] [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: 09/17/2019] [Revised: 12/05/2019] [Accepted: 12/26/2019] [Indexed: 12/11/2022]
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Mohapatra SS, Frisina RD, Mohapatra S, Sneed KB, Markoutsa E, Wang T, Dutta R, Damnjanovic R, Phan MH, Denmark DJ, Biswal MR, McGill AR, Green R, Howell M, Ghosh P, Gonzalez A, Ahmed NT, Borresen B, Farmer M, Gaeta M, Sharma K, Bouchard C, Gamboni D, Martin J, Tolve B, Singh M, Judy JW, Li C, Santra S, Daunert S, Zeynaloo E, Gelfand RM, Lenhert S, McLamore ES, Xiang D, Morgan V, Friedersdorf LE, Lal R, Webster TJ, Hoogerheide DP, Nguyen TD, D’Souza MJ, Çulha M, Kondiah PPD, Martin DK. Advances in Translational Nanotechnology: Challenges and Opportunities. Appl Sci (Basel) 2020; 10:10.3390/app10144881. [PMID: 38486792 PMCID: PMC10938472 DOI: 10.3390/app10144881] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The burgeoning field of nanotechnology aims to create and deploy nanoscale structures, devices, and systems with novel, size-dependent properties and functions. The nanotechnology revolution has sparked radically new technologies and strategies across all scientific disciplines, with nanotechnology now applied to virtually every area of research and development in the US and globally. NanoFlorida was founded to create a forum for scientific exchange, promote networking among nanoscientists, encourage collaborative research efforts across institutions, forge strong industry-academia partnerships in nanoscience, and showcase the contributions of students and trainees in nanotechnology fields. The 2019 NanoFlorida International Conference expanded this vision to emphasize national and international participation, with a focus on advances made in translating nanotechnology. This review highlights notable research in the areas of engineering especially in optics, photonics and plasmonics and electronics; biomedical devices, nano-biotechnology, nanotherapeutics including both experimental nanotherapies and nanovaccines; nano-diagnostics and -theranostics; nano-enabled drug discovery platforms; tissue engineering, bioprinting, and environmental nanotechnology, as well as challenges and directions for future research.
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Affiliation(s)
- Shyam S. Mohapatra
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Robert D. Frisina
- Department of Chemical and Biomedical Engineering and Global Center for Hearing and Speech Research, University of South Florida, Tampa, FL 33620, USA
| | - Subhra Mohapatra
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Kevin B. Sneed
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Eleni Markoutsa
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Tao Wang
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Rinku Dutta
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Ratka Damnjanovic
- Department of Chemical and Biomedical Engineering and Global Center for Hearing and Speech Research, University of South Florida, Tampa, FL 33620, USA
| | - Manh-Huong Phan
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
| | - Daniel J. Denmark
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Manas R. Biswal
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Andrew R. McGill
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Ryan Green
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Mark Howell
- Departments of Molecular Medicine and Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- James A. Haley Veterans Hospital, Tampa, FL 33612, USA
| | - Payal Ghosh
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Alejandro Gonzalez
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Nadia Tasnim Ahmed
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Brittney Borresen
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Mitchell Farmer
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Melissa Gaeta
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Krishna Sharma
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Christen Bouchard
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Danielle Gamboni
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Jamie Martin
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Bianca Tolve
- Taneja College of Pharmacy Graduate Programs, University of South Florida, Tampa, FL 33612, USA
| | - Mandip Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - Jack W. Judy
- University of Florida Department of Electrical and Computer Engineering and Nanoscience Institute for Medical and Engineering Technology, Gainesville, FL 32611, USA
| | - Chenzhong Li
- Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA
| | - Swadeshmukul Santra
- NanoScience Technology Center, University of Central Florida, Burnett School of Biomedical Sciences, Department of Chemistry and Department of Materials Science and Engineering, Orlando, FL 32826, USA
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, and Department of Chemistry, Miami, FL 33124, USA
| | - Elnaz Zeynaloo
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, and Department of Chemistry, Miami, FL 33124, USA
| | - Ryan M. Gelfand
- School of Science and Engineering, Tulane University, New Orleans, LA 70118, USA
| | - Steven Lenhert
- Department of Biological Science, Florida State University, Tallahassee, FL 32306, USA
| | - Eric S. McLamore
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | - Dong Xiang
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | - Victoria Morgan
- Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32603, USA
| | | | - Ratnesh Lal
- Center for Excellence in Nanomedicine and Engineering, University of California San Diego, IEM, La Jolla, CA 92093, USA
| | - Thomas J. Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - David P. Hoogerheide
- National Institute of Standards and Technology, Center for Neutron Research, Gaithersburg, MD 20899, USA
| | - Thanh Duc Nguyen
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Martin J. D’Souza
- Department of Pharmaceutical Sciences, Nanotechnology Laboratory, Mercer University, Atlanta, GA 30341, USA
| | - Mustafa Çulha
- Knight Cancer Institute, Cancer Early Detection Advanced Research (CEDAR), Oregon Health and Science University, Portland, OR 97239, USA
| | - Pierre P. D. Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Donald K. Martin
- Faculté de Pharmacie and TIMC-IMAG (UMR 5525), University Grenoble Alpes, SyNaBi, 38000 Grenoble, France
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Tarhan T, Ulu A, Sariçam M, Çulha M, Ates B. Maltose functionalized magnetic core/shell Fe3O4@Au nanoparticles for an efficient l-asparaginase immobilization. Int J Biol Macromol 2020; 142:443-451. [DOI: 10.1016/j.ijbiomac.2019.09.116] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/03/2019] [Accepted: 09/16/2019] [Indexed: 11/24/2022]
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Emanet M, Sen Ö, Taşkin IÇ, Çulha M. Synthesis, Functionalization, and Bioapplications of Two-Dimensional Boron Nitride Nanomaterials. Front Bioeng Biotechnol 2019; 7:363. [PMID: 31921797 PMCID: PMC6915082 DOI: 10.3389/fbioe.2019.00363] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 07/30/2019] [Accepted: 11/12/2019] [Indexed: 11/23/2022] Open
Abstract
Two-dimensional boron nitride nanostructures (2D-BNNs) have been increasingly investigated for their applications in several scientific and technological areas. This considerable interest is due to their unique physicochemical properties, which include high hydrophobicity, heat and electrical insulation, resistance to oxidation, antioxidation capacity, thermal conductivity, high chemical stability, mechanical strength, and hydrogen storage capacity. They are also used as fillers, antibacterial agents, protective coating agents, lubricants, boron neutron capture therapy agents, nanocarriers for drug delivery, and for the receptor phase in chemosensors. The investigations for their use in medicine and biomedicine are very promising, including cancer therapy and wound healing. In this review, 2D-BNNs synthesis and their surface modification strategies, biocompatibility, and bioapplication studies are discussed. Finally, a perspective for the future use of these novel nanomaterials in the biomedical field is provided.
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Affiliation(s)
| | | | | | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
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11
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Kalay S, Stetsyshyn Y, Donchak V, Harhay K, Lishchynskyi O, Ohar H, Panchenko Y, Voronov S, Çulha M. pH-Controlled fluorescence switching in water-dispersed polymer brushes grafted to modified boron nitride nanotubes for cellular imaging. Beilstein J Nanotechnol 2019; 10:2428-2439. [PMID: 31921521 PMCID: PMC6941444 DOI: 10.3762/bjnano.10.233] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/07/2019] [Indexed: 05/27/2023]
Abstract
pH-Switchable, fluorescent, hybrid, water-dispersible nanomaterials based on boron nitride nanotubes (BNNTs) and grafted copolymer brushes (poly(acrylic acid-co-fluorescein acrylate) - P(AA-co-FA)) were successfully fabricated in a two-step process. The functionalization of BNNTs was confirmed by spectroscopic, gravimetric and imaging techniques. In contrast to "pure" BNNTs, P(AA-co-FA)-functionalized BNNTs demonstrate intense green fluorescence emission at 520 nm. Under neutral or alkaline pH values, P(AA-co-FA)-functionalized BNNTs are highly emissive in contrast to acidic pH conditions where the fluorescent intensity is absent or low. No increase in the absorption was observed when the suspension pH was increased from 7 to 10. The functionalized BNNTs are easily taken up by human normal prostate epithelium (PNT1A) and human prostate cancer cell lines (DU145) and are suitable for further evaluation in cellular imaging applications.
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Affiliation(s)
- Saban Kalay
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Yurij Stetsyshyn
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Volodymyr Donchak
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Khrystyna Harhay
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Ostap Lishchynskyi
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Halyna Ohar
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Yuriy Panchenko
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Stanislav Voronov
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
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Tunç CU, Öztaş DY, Uzunoğlu D, Bayrak ÖF, Çulha M. Silencing Breast Cancer Genes Using Morpholino Embedded DNA-Tile-AuNPs Nanostructures. Hum Gene Ther 2019; 30:1547-1558. [PMID: 31608694 DOI: 10.1089/hum.2019.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
There is an ongoing effort to increase the efficiency of gene delivery for the regulation of diseases-related genes. In this report, we demonstrate the efficiency of a DNA-based nanostructure to deliver morpholino antisense oligonucleotides for the upregulated genes in breast cancer as an alternative to the currently used delivery systems. A DNA-tile structure is constructed by embedding antisense oligonucleotides targeting the HER2 and ERα genes. Then, the sticky ends of the DNA-tile nanostructures are hybridized to gold nanoparticles (AuNPs) coated with the complementary oligonucleotides to enhance their cellular uptake. It is found that the morpholino antisense oligonucleotide embedded DNA-tile-AuNPs structure is 30% more effective than the liposome-based system to deliver morpholinos and induce gene silencing in breast cancer cells. The results of the study suggest that the prepared novel nanostructure is an effective and biocompatible carrier that can be used in in vitro gene silencing studies and can be further pursued in in vivo studies.
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Affiliation(s)
- Cansu U Tunç
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Deniz Y Öztaş
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Deniz Uzunoğlu
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
| | - Ömer F Bayrak
- Department of Medical Genetics, Yeditepe University Medical School and Yeditepe University Hospital, Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
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Affiliation(s)
- Özlem Şen
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Melis Emanet
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
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Verimli N, Demiral A, Yılmaz H, Çulha M, Erdem SS. Design of Dense Brush Conformation Bearing Gold Nanoparticles as Theranostic Agent for Cancer. Appl Biochem Biotechnol 2019; 189:709-728. [DOI: 10.1007/s12010-019-03151-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 09/13/2019] [Indexed: 01/05/2023]
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15
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Öztaş DY, Altunbek M, Uzunoglu D, Yılmaz H, Çetin D, Suludere Z, Çulha M. Tracing Size and Surface Chemistry-Dependent Endosomal Uptake of Gold Nanoparticles Using Surface-Enhanced Raman Scattering. Langmuir 2019; 35:4020-4028. [PMID: 30773019 DOI: 10.1021/acs.langmuir.8b03988] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Surface-enhanced Raman scattering (SERS)-based single-cell analysis is an emerging approach to obtain molecular level information from molecular dynamics in a living cell. In this study, endosomal biochemical dynamics was investigated based on size and surface chemistry-dependent uptake of gold nanoparticles (AuNPs) on single cells over time using SERS. MDA-MB-231 breast cancer cells were exposed to 13 and 50 nm AuNPs and their polyadenine oligonucleotide-modified forms by controlling the order and combination of AuNPs. The average spectra obtained from 20 single cells were analyzed to study the nature of the biochemical species or processes taking place on the AuNP surfaces. The spectral changes, especially from proteins and lipids of endosomal vesicles, were observed depending on the size, surface chemistry, and combination as well as the duration of the AuNP treatment. The results demonstrate that SERS spectra are sensitive to trace biochemical changes not only the size, surface chemistry, and aggregation status of AuNPs but also the endosomal maturation steps over time, which can be simple and fast way for understanding the AuNP behavior in single cell and useful for the assisting and controlling of AuNP-based gene or drug delivery applications.
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Affiliation(s)
- Deniz Yaşar Öztaş
- Department of Genetics and Bioengineering, Faculty of Engineering , Yeditepe University , Ataşehir, Istanbul 34755 , Turkey
| | - Mine Altunbek
- Department of Genetics and Bioengineering, Faculty of Engineering , Yeditepe University , Ataşehir, Istanbul 34755 , Turkey
| | - Deniz Uzunoglu
- Department of Genetics and Bioengineering, Faculty of Engineering , Yeditepe University , Ataşehir, Istanbul 34755 , Turkey
| | - Hülya Yılmaz
- Department of Genetics and Bioengineering, Faculty of Engineering , Yeditepe University , Ataşehir, Istanbul 34755 , Turkey
| | | | | | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering , Yeditepe University , Ataşehir, Istanbul 34755 , Turkey
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Şen Ö, Emanet M, Çulha M. One-Step Synthesis of Hexagonal Boron Nitrides, Their Crystallinity and Biodegradation. Front Bioeng Biotechnol 2018; 6:83. [PMID: 29977891 PMCID: PMC6021499 DOI: 10.3389/fbioe.2018.00083] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 04/29/2018] [Accepted: 06/01/2018] [Indexed: 11/25/2022] Open
Abstract
Hexagonal boron nitrides (hBNs) have recently been investigated for several novel applications due to their unique properties such as biocompatibility, superhydrophobicity, electrical insulation, and thermal and chemical stability. In addition, their biodegradation products have recently reported to have therapeutic effect on certain cancer types. hBNs are easily synthesized from boron and nitrogen precursors at moderately low temperatures. However, crystallinity and yield vary depending on the type of precursor, reaction temperature, and duration. In this study, a simple one-step hBNs synthesis method is reported without a catalyst, which might be an undesired contaminant for biomedical applications. The influence of boron precursors (boric acid, colemanite, or boron trioxide) on hBNs crystallinity, stability, and biodegradation in suspensions containing oxidative and hydrolytic degradation agents is investigated with the aim of their possible application in biomedicine. We found that the choice of boron precursor is a critically important parameter controlling the hBNs crystallinity and dependently influencing the biodegradation rate.
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Affiliation(s)
- Özlem Şen
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Melis Emanet
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
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Altunbek M, Keleştemur S, Baran G, Çulha M. Role of modification route for zinc oxide nanoparticles on protein structure and their effects on glioblastoma cells. Int J Biol Macromol 2018; 118:271-278. [PMID: 29908275 DOI: 10.1016/j.ijbiomac.2018.06.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 05/14/2018] [Revised: 05/30/2018] [Accepted: 06/12/2018] [Indexed: 10/14/2022]
Abstract
Zinc oxide nanoparticles (ZnO) are presented as potential cancer therapeutic agent based on their surface properties. In this study, the most abundant blood proteins, albumin, fibrinogen and apo-transferrin, were covalently bound (c-ZnO NPs) and nonspecifically adsorbed (n-ZnO NPs) onto ZnO NPs to evaluate the role of modification route on protein structure and their effects on glioblastoma cells. The success of modification and structures of proteins on ZnO NPs were characterized with FT-IR. It was found that non-covalent interaction significantly damaged the secondary structure of proteins compared to those covalently attached to the ZnO nanoparticle. The effects of modified ZnO NPs were investigated by evaluating viability, cycle, and death mechanisms of glioblastoma (U373) cells. n-ZnO NPs were found more toxic compared to the pristine and c-ZnO NPs. However, c-ZnO NPs with albumin and apo-transferrin both perturbed the cell cycle function, and decreased the necrotic cell death rate of U373 cells below toxic concentration, suggesting their potential curative effect on glioblastoma cells.
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Affiliation(s)
- Mine Altunbek
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Seda Keleştemur
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Gülin Baran
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey.
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18
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Keleştemur S, Çulha M. Understanding and Discrimination of Biofilms of Clinically Relevant Microorganisms Using Surface-Enhanced Raman Scattering. Appl Spectrosc 2017; 71:1180-1188. [PMID: 27708179 DOI: 10.1177/0003702816670916] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Biofilm formation is a defense mechanism for microorganisms to survive under both natural and stress conditions. Clinically relevant microorganisms threaten patient health through biofilm formation on medical devices and implants. It is very important to identify biofilm formation in order to suppress their pathogenic activities in early stages. With the aim for better understanding biofilm formation and possibility of detection, in this study, biofilm formation of clinically important microorganisms, Pseudomonas aeruginosa, Staphylococcus epidermidis, and Candida albicans are monitored with surface-enhanced Raman scattering (SERS). The SERS spectra were collected by mapping a dried droplet area where a volume of colloidal silver nanoparticle (AgNP) suspension is placed on microorganism culture plate. The spectral changes on the SERS spectra with increasing incubation time of the model microorganisms from 4 to 120 h are monitored. The unique spectra originating from the biofilms of three pathogenic microorganisms and the spectral changes as a result of time-dependent concentration fluctuations of biomolecular species in their biofilms including carbohydrates, lipids, proteins, and genetic materials allow not only identification but also discrimination of biofilms using principal component analysis.
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Affiliation(s)
- Seda Keleştemur
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Atasehir, Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Atasehir, Istanbul, Turkey
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19
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Şen Ö, Çobandede Z, Emanet M, Bayrak ÖF, Çulha M. Boron nitride nanotubes for gene silencing. Biochim Biophys Acta Gen Subj 2017; 1861:2391-2397. [PMID: 28571947 DOI: 10.1016/j.bbagen.2017.05.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/20/2017] [Accepted: 05/29/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Non-viral gene delivery is increasingly investigated as an alternative to viral vectors due to low toxicity and immunogenicity, easy preparation, tissue specificity, and ability to transfer larger sizes of genes. METHODS In this study, boron nitride nanotubes (BNNTs) are functionalized with oligonucleotides (oligo-BNNTs). The morpholinos complementary to the oligonucleotides attached to the BNNTs (morpholino/oligo-BNNTs) are hybridized to silence the luciferase gene. The morpholino/oligo-BNNTs conjugates are administered to luciferase-expressing cells (MDA-MB-231-luc2) and the luciferase activity is monitored. RESULTS The luciferase activity is decreased when MDA-MB-231-luc2 cells were treated with morpholino/oligo-BNNTs. CONCLUSIONS The study suggests that BNNTs can be used as a potential vector to transfect cells. GENERAL SIGNIFICANCE BNNTs are potential new nanocarriers for gene delivery applications.
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Affiliation(s)
- Özlem Şen
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Zehra Çobandede
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Melis Emanet
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Ömer Faruk Bayrak
- Department of Medical Genetics, Yeditepe University Medical School, Istanbul, Turkey; Yeditepe Universitesi Hastanesi Genetik Tani Merkezi, Koftuncu Sokak Acıbadem mahallesi Istek Vakfi 3. Kat 34718 No: 57/1, Kadikoy, Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey.
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Abstract
AIM Boron nitride nanotubes (BNNTs) and hexagonal boron nitrides (hBNs) are novel nanostructures with high mechanical strengths, large surface areas and excellent biocompatibilities. Here, the potential use of BNNTs and hBNs as nanocarriers was comparatively investigated for use with cancer drugs. MATERIALS & METHODS Doxorubicin (Dox) and folate are used as model drugs and targeting agents, respectively. RESULTS & DISCUSSION The obtained results indicate that BNNTs have about a threefold higher Dox loading capacity than hBNs. It was also found that cellular uptake of folate-Dox-BNNTs was much higher when compared with Dox-BNNTs for HeLa cells, due to the presence of folate receptors on the cell surface, leading to increased cancer cell death. In summary, folate and Dox conjugated BNNTs are promising agents in nanomedicine and may have potential drug delivery applications.
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Affiliation(s)
- Melis Emanet
- Department of Genetics & Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Özlem Şen
- Department of Genetics & Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Department of Genetics & Bioengineering, Faculty of Engineering, Yeditepe University, Ataşehir, Istanbul 34755, Turkey
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21
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Okan BS, Marset A, Seyyed Monfared Zanjani J, Sut PA, Sen O, Çulha M, Menceloglu Y. Thermally exfoliated graphene oxide reinforced fluorinated pentablock poly(l-lactide-co-ε-caprolactone) electrospun scaffolds: Insight into antimicrobial activity and biodegradation. J Appl Polym Sci 2016. [DOI: 10.1002/app.43490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Burcu Saner Okan
- Sabanci University Nanotechnology Research and Application Center; Tuzla Istanbul 34956 Turkey
| | - Azucena Marset
- Sabanci University Nanotechnology Research and Application Center; Tuzla Istanbul 34956 Turkey
| | - Jamal Seyyed Monfared Zanjani
- Faculty of Engineering and Natural Sciences, Advanced Composites and Polymer Processing Laboratory; Sabanci University; Tuzla Istanbul 34956 Turkey
| | - Pınar Akkus Sut
- Department of Genetics and Bioengineering, Faculty of Engineering; Yeditepe University; Atasehir Istanbul 34755 Turkey
| | - Ozlem Sen
- Department of Genetics and Bioengineering, Faculty of Engineering; Yeditepe University; Atasehir Istanbul 34755 Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering; Yeditepe University; Atasehir Istanbul 34755 Turkey
| | - Yusuf Menceloglu
- Faculty of Engineering and Natural Sciences, Advanced Composites and Polymer Processing Laboratory; Sabanci University; Tuzla Istanbul 34956 Turkey
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22
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Kalay S, Stetsyshyn Y, Lobaz V, Harhay K, Ohar H, Çulha M. Water-dispersed thermo-responsive boron nitride nanotubes: synthesis and properties. Nanotechnology 2016; 27:035703. [PMID: 26636569 DOI: 10.1088/0957-4484/27/3/035703] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, water-dispersed thermo-responsive boron nitride nanotubes (BNNTs) were prepared in a simple two-step process, where on the first step oligoperoxide was grafted via the interaction of amino groups (defects) of BNNTs with pyromellitic chloroanhydride fragments in oligoperoxide molecules. The second step involves N-isopropylacrylamide (NIPAM) graft polymerization 'from the surface' of oligoperoxide-functionalized BNNTs resulting in poly(N-isopropylacrylamide) (PNIPAM) coating. The pristine and functionalized BNNTs were characterized by thermogravimetric analysis, Fourier transform infrared spectroscopy, ultraviolet-visible spectrophotometry, dynamic light scattering, scanning electron microscopy and atomic force microscopy. PNIPAM-functionalized BNNTs exhibit excellent dispersibility in water and possess thermo-responsive properties. The water-dispersion of thermo-responsive PNIPAM-functionalized BNNTs can help their potential use in biomedical applications as 'smart' surfaces, nanotransducers and nanocarriers.
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Affiliation(s)
- Saban Kalay
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
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Sabuncu S, Çulha M. Temperature-dependent breakdown of hydrogen peroxide-treated ZnO and TiO2 nanoparticle agglomerates. Beilstein J Nanotechnol 2015; 6:1897-1903. [PMID: 26665060 PMCID: PMC4660901 DOI: 10.3762/bjnano.6.193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 08/22/2015] [Indexed: 06/05/2023]
Abstract
Metal oxide nanoparticles (MONPs) are used in a variety of applications including drug formulations, paint, sensors and biomedical devices due to their unique physicochemical properties. One of the major problems with their widespread implementation is their uncontrolled agglomeration. One approach to reduce agglomeration is to alter their surface chemistry with a proper functionality in an environmentally friendly way. In this study, the influence of hydrogen peroxide (H2O2) treatment on the dispersion of ZnO and TiO2 nanoparticle (NP) agglomerates as a function of temperature is studied. The H2O2 treatment of the MONPs increases the density of hydroxyl (-OH) groups on the NP surface, as verified with FTIR spectroscopy. The influence of heating on the dispersion of H2O2-treated ZnO and TiO2 NPs is investigated using dynamic light scattering. The untreated and H2O2-treated ZnO and TiO2 NP suspensions were heated from 30 °C to 90 °C at 5 °C intervals to monitor the breakdown of large aggregates into smaller aggregates and individual nanoparticles. It was shown that the combined effect of hydroxylation and heating enhances the dispersion of ZnO and TiO2 NPs in water.
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Affiliation(s)
- Sinan Sabuncu
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
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25
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Mert S, Özbek E, Ötünçtemur A, Çulha M. Kidney tumor staging using surface-enhanced Raman scattering. J Biomed Opt 2015; 20:047002. [PMID: 25858595 DOI: 10.1117/1.jbo.20.4.047002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 03/18/2015] [Indexed: 05/13/2023]
Abstract
The detection of kidney cancers at an early stage is critical for diagnosis and therapy. Surface-enhanced Raman scattering (SERS) is investigated for early detection of cancer cases from biopsy samples. The colloidal silver nanoparticles as the SERS-active nanostructures are directly mixed with homogenized tissue samples. The SERS spectra from the normal and abnormal tissue samples collected from 40 cancer patients, 28 of them at T1 stage and 12 of them at T2–T3 stages, are analyzed using principal component analysis combined linear discriminant analysis with leave-one-out cross-validation method. It is found that the diagnosis sensitivity, specificity, and total accuracy of the approach can be as high as 100%. The results suggest that SERS can be used as a potential technique for the identification of the different tumor stages.
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Affiliation(s)
- Sevda Mert
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, Kayisdagi Street, Atasehir, Istanbul 34755, Turkey
| | - Emin Özbek
- Okmeydani Education and Research Hospital, Department of Urology, Istanbul 34360, Turkey
| | - Alper Ötünçtemur
- Okmeydani Education and Research Hospital, Department of Urology, Istanbul 34360, Turkey
| | - Mustafa Çulha
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, Kayisdagi Street, Atasehir, Istanbul 34755, Turkey
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Kalay S, Yilmaz Z, Sen O, Emanet M, Kazanc E, Çulha M. Synthesis of boron nitride nanotubes and their applications. Beilstein J Nanotechnol 2015; 6:84-102. [PMID: 25671154 PMCID: PMC4311706 DOI: 10.3762/bjnano.6.9] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 12/04/2014] [Indexed: 05/07/2023]
Abstract
Boron nitride nanotubes (BNNTs) have been increasingly investigated for use in a wide range of applications due to their unique physicochemical properties including high hydrophobicity, heat and electrical insulation, resistance to oxidation, and hydrogen storage capacity. They are also valued for their possible medical and biomedical applications including drug delivery, use in biomaterials, and neutron capture therapy. In this review, BNNT synthesis methods and the surface modification strategies are first discussed, and then their toxicity and application studies are summarized. Finally, a perspective for the future use of these novel materials is discussed.
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Affiliation(s)
- Saban Kalay
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Zehra Yilmaz
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Ozlem Sen
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Melis Emanet
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Emine Kazanc
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
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Abstract
Surface-enhanced Raman scattering (SERS) is used for the differentiation of human kidney adenocarcinoma, human kidney carcinoma, and non-cancerous human kidney embryonic cells. Silver nanoparticles (AgNPs) are used as substrate in the experiments. A volume of colloidal suspension containing AgNPs is added onto the cultured cells on a CaF(2) slide, and the slide is dried at the overturned position. A number of SERS spectra acquired from the three different cell lines are statistically analyzed to differentiate the cells. Principal component analysis (PCA) combined with linear discriminate analysis (LDA) was performed to differentiate the three kidney cell types. The LDA, based on PCA, provided for classification among the three cell lines with 88% sensitivity and 84% specificity. This study demonstrates that SERS can be used to identify renal cancers by combining this new sampling method and LDA algorithms.
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Affiliation(s)
- Sevda Mert
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Atasehir, Istanbul 34755 Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Atasehir, Istanbul 34755 Turkey
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Keskin S, Efeoğlu E, Keçeci K, Çulha M. Label-free detection of proteins in ternary mixtures using surface-enhanced Raman scattering and protein melting profiles. J Biomed Opt 2013; 18:037007. [PMID: 23515867 DOI: 10.1117/1.jbo.18.3.037007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
ABSTRACT. The multiplex detection of biologically important molecules such as proteins in complex mixtures has critical importance not only in disease diagnosis but also in other fields such as proteomics and biotechnology. Surface-enhanced Raman scattering (SERS) is a powerful technique for multiplex identification of molecular components in a mixture. We combined the multiplexing power of SERS and heat denaturation of proteins to identify proteins in ternary protein mixtures. The heat denaturation profiles of four model blood proteins, transferrin, human serum albumin, fibrinogen, and hemoglobin, were studied with SERS. Then, two ternary mixtures of these four proteins were used to test the feasibility of the approach. It was demonstrated that unique denaturation profiles of each protein could be used for their identification in the mixture.
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Affiliation(s)
- Sercan Keskin
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
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29
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Kalay S, Yilmaz Z, Çulha M. Synthesis of boron nitride nanotubes from unprocessed colemanite. Beilstein J Nanotechnol 2013; 4:843-51. [PMID: 24367753 PMCID: PMC3869213 DOI: 10.3762/bjnano.4.95] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 11/07/2013] [Indexed: 05/16/2023]
Abstract
Colemanite (Ca2B6O11·5H2O) is a natural and new precursor material for the synthesis of boron nitride nanotubes (BNNTs). BNNTs have been synthesized from unprocessed colemanite for the first time. The reaction parameters such as time, catalyst type, catalyst amount and temperature were optimized. It was found that the BNNT formation follows the base growth mechanism, which was initiated with a complex of boron nitride (BN) and iron atoms. The obtained BNNTs were characterized by using SEM, TEM, and spectroscopic techniques such as UV-vis, Raman, FTIR and XRD. The BNNTs were randomly oriented and multi-walled with an outer diameter of 10-30 nm and a wall thickness of 5 nm. This novel BNNT synthesis method can be used to obtain high yield, low cost and pure BNNTs.
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Affiliation(s)
- Saban Kalay
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Zehra Yilmaz
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
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30
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Keskin S, Çulha M. Label-free detection of proteins from dried-suspended droplets using surface enhanced Raman scattering. Analyst 2012; 137:2651-7. [DOI: 10.1039/c2an16296b] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Coştur P, Filiz S, Gonca S, Çulha M, Gülecen T, Solakoğlu S, Canberk Y, Çalışkan E. Êxpression of inducible nitric oxide synthase (iNOS) in the azoospermic human testis. Andrologia 2011; 44 Suppl 1:654-60. [PMID: 22050043 DOI: 10.1111/j.1439-0272.2011.01245.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Azoospermia, which is the absence of spermatozoa in the ejaculate, is not a rare cause of male infertility. Inducible nitric oxide synthase (iNOS) is a calcium-independent NOS, which is present in the testis and involved in spermatogenesis, and apoptosis of Sertoli and germ cells. Twenty idiopathic infertile men presenting nonobstructive azoospermia were enrolled in this study, and testicular sperm extraction procedures were performed. Tissue extracts were dissected, and the fluid samples were investigated to determine the presence of spermatozoa. Histologic evaluation of the spermatozoa-present samples revealed that seminiferous tubules were normal and were lined by Sertoli cells and spermatogenic cells. However, in the spermatozoa-absent samples, the diameter of the seminiferous tubules was small, and Sertoli-cell-only syndrome was determined in most of the tubules. iNOS expression was very weak in Sertoli cells, germ cells, and in Leydig cells in the spermatozoa-present group. In the spermatozoa-absent group, the immunostaining was very intense in Sertoli and Leydig cells. Electron microscopy findings were supported the histologic results. In conclusion, complete germ cell loss and intense expression of iNOS in the Sertoli and Leydig cells in the spermatozoa-absent groups of azoospermic human testis suggest an essential role of iNOS in spermatogenesis.
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Affiliation(s)
- P Coştur
- IVF Unit, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
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Çulha M, Altunbek M, Keskin S, Saatçi D. Manipulation of silver nanoparticles in a droplet for label-free detection of biological molecules using surface-enhanced Raman scattering. ACTA ACUST UNITED AC 2011. [DOI: 10.1117/12.871219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Keskin S, Kahraman M, Çulha M. Differential separation of protein mixtures using convective assembly and label-free detection with surface enhanced Raman scattering. Chem Commun (Camb) 2011; 47:3424-6. [DOI: 10.1039/c0cc05275b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kahraman M, Sur İ, Çulha M. Label-Free Detection of Proteins from Self-Assembled Protein-Silver Nanoparticle Structures using Surface-Enhanced Raman Scattering. Anal Chem 2010; 82:7596-602. [DOI: 10.1021/ac101720s] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mehmet Kahraman
- Department of Genetics and Bioengineering, Yeditepe University, Kayışdağı/Kadıköy, Istanbul 34755, Turkey
| | - İlknur Sur
- Department of Genetics and Bioengineering, Yeditepe University, Kayışdağı/Kadıköy, Istanbul 34755, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Kayışdağı/Kadıköy, Istanbul 34755, Turkey
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Abdullin TI, Bondar OV, Nikitina II, Bulatov ER, Morozov MV, Hilmutdinov AK, Salakhov MK, Çulha M. Effect of size and protein environment on electrochemical properties of gold nanoparticles on carbon electrodes. Bioelectrochemistry 2009; 77:37-42. [DOI: 10.1016/j.bioelechem.2009.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 06/01/2009] [Accepted: 06/03/2009] [Indexed: 10/20/2022]
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Kahraman M, Aydin Ö, Çulha M. Size Effect of 3D Aggregates Assembled from Silver Nanoparticles on Surface-Enhanced Raman Scattering. Chemphyschem 2009; 10:537-42. [DOI: 10.1002/cphc.200800740] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Solmaz R, Kardaş G, Çulha M, Yazıcı B, Erbil M. Investigation of adsorption and inhibitive effect of 2-mercaptothiazoline on corrosion of mild steel in hydrochloric acid media. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.03.055] [Citation(s) in RCA: 575] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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