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Department of Metallurgical and Materials Engineering

Cenk Aktaş

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Cenk Aktaş
Assoc.Prof.

Education:
  • Ph.D. Leibniz-INM / Saarland University, Germany (2009)
  • Post-Graduate Degree Kaiserslautern Technical University, Germany
  • M.S. Kiel University (CAU), Germany
  • B.S. Middle East Technical University, Turkey
Research Interests:
  • Nanostructured materials
  • Nanocomposites
  • Surface science and engineering
  • Thin films and functional coatings
  • Nano-bio-interfaces
Publications:
  • S.Kalantzis,S.Veziroglu,T.Kohlhaas,C.Flörke,Y.K.Mishra, J.Wiltfang,Y.Acil,F.Faupel,O.C. Aktas, A. Gülses, Early Stage Osteoblastic Activity on TiO2 Thin Film Decorated with Flower-like Hierarchical Au Structures, Advanced Materials and Interfaces. (2020), Submitted
  • J. Shondo, S. Veziroglu, D. Stefan, Y. K. Mishra, T. Strunskus, F. Faupel, and O.C. Aktas, Tuning Wettability of TiO2 Thin Film by Photocatalytic Deposition of 3D Flower- and Hedgehog-like Au Micro- and Nanostructures, Nanoscale (2020), Submitted
  • S. Sayin, T.Kohlhaas, S. Veziroglu, E. Sukran Okudan, M. Naz, S. Schröder, I. Saygili, Y. Acil, F. Faupel, J. Wiltfang, O. C. Aktas, A. Gülses, Marine Algae-PLA Composites as De Novo Alternative to Porcine Derived Collagen Membranes, Material Today Chemistry. 17 (2020) 100276
  • S. Veziroglu, A.-L. Obermann, M. Ullrich, M. Hussein, M. Kamp, L. Kienle, T. Leißner, H.-G. Rubahn, O. Polonskyi, T. Strunskus, J. Fiutowski, M. Es-Sounid, J. Adam, F. Faupel, O. C. Aktas, Photo-deposition of Au Nanoclusters for Enhanced Photocatalytic Dye Degradation over TiO2 Thin Film, ACS Applied Materials and Interfaces. 12, (2020) 14983.
  • H.Yetgin,S.Veziroglu,O.C.Aktas,T.Yalçinkaya,Enhancing thermalconductivity of epoxy with a binary filler system of h-BN platelets and Al2O3 nanoparticles, Int. J. Adhes. Adhes. 98 (2020) 102540.
  • S. Veziroglu, J.Hwang, J. Drewes, J. Shondo, T. Strunskus, O. Polonskyi, F. Faupel, and O. C. Aktas, PdO Nanoparticles Decorated TiO2 Film with Enhanced Photocatalytic and Self-Cleaning Properties, Materials Today Chemistry. 16 (2020) 100251.
  • S. Veziroglu, M. Ullrich, M. Hussain, J. Drewes, J. Shondo, T. Strunskus, J. Adam, F. Faupel, O. C. Aktas, Plasmonic and non-plasmonic contributions on photocatalytic activity of Au-TiO2 thin film under mixed UV-Visible light, Surface & Coatings Tech. 389, (2020) 125613.
  • S. Veziroglu, M.Z. Ghori, A.L. Obermann, K. Röder, O. Polonskyi, T. Strunskus, F. Faupel, O.C. Aktas, Ag Nanoparticles Decorated TiO2 Thin Films with Enhanced Photocatalytic Activity, Phys. Status Solidi Appl. Mater. Sci. (2019) 1800898. (FRONT COVER)
  • O.C. Aktas, S. Schröder, S. Veziroglu, M.Z. Ghori, A. Haidar, O. Polonskyi, T. Strunskus, K. Gleason, F. Faupel, Superhydrophobic 3D Porous PTFE/TiO2 Hybrid Structures, Adv. Mater. Interfaces. 6 (2019) 1801967. (INSIDE BACK COVER)
  • S. Veziroglu, K. Röder, O. Gronenberg, A. Vahl, O. Polonskyi, T. Strunskus, H.-G. Rubahn, L. Kienle, J. Adam, J. Fiutowski, F. Faupel, O.C. Aktas, Cauliflower-like CeO2 –TiO2 hybrid nanostructures with extreme photocatalytic and self-cleaning properties, Nanoscale. 11 (2019) 9840–9844. (INSIDE BACK COVER)
  • A. Vahl, J. Dittmann, J. Jetter, S. Veziroglu, S. Shree, N. Ababii, O. Lupan, O.C. Aktas, T. Strunskus, E. Quandt, R. Adelung, S.K. Sharma, F. Faupel, The impact of O2 /Ar ratio on morphology and functional properties in reactive sputtering of metal oxide thin films, Nanotechnology. 30 (2019) 235603
  • A. Vahl, S. Veziroglu, B. Henkel, T. Strunskus, O. Polonskyi, O.C. Aktas, F. Faupel, Pathways to Tailor Photocatalytic Performance of TiO2 Thin Films Deposited by Reactive Magnetron Sputtering, Materials (Basel). 12 (2019) 2840.
  • A.Haidar,A.A.Ali,S.Veziroglu,J.Fiutowski,H.Eichler,I.Müller,K.Kiefer,F.Faupel,M.Bischoff, M. Veith, O.C. Aktas, H. Abdul-Khaliq, PTFEP–Al2O3 hybrid nanowires reducing thrombosis and biofouling, Nanoscale Adv. 1 (2019) 4659–4664.
  • S. Veziroglu, M.Z. Ghori, M. Kamp, L. Kienle, H.G. Rubahn, T. Strunskus, J. Fiutowski, J. Adam, F. Faupel, O.C. Aktas, Photocatalytic Growth of Hierarchical Au Needle Clusters on Highly Active TiO2 Thin Film, Adv. Mater. Interfaces. 5 (2018) 1800465. (FRONTISPIECE)
  • M.Z. Ghori, S. Veziroglu, A. Hinz, B.B. Shurtleff, O. Polonskyi, T. Strunskus, J. Adam, F. Faupel, O.C. Aktas, Role of UV Plasmonics in the Photocatalytic Performance of TiO2 Decorated with Aluminum Nanoparticles, ACS Appl. Nano Mater. 1 (2018) 3760–3764. (FRONT COVER)
  • B. Henkel, A.Vahl, O.C. Aktas, T. Strunskus, F. Faupel, Self-organized nanocrack networks: a pathway to enlarge catalytic surface area in sputtered ceramic thin films, showcased for photocatalytic TiO2, Nanotechnology 29 (2018) 035703 (10pp)
  • M.Z. Ghori, S. Veziroglu, B. Henkel, A. Vahl, O. Polonskyi, T. Strunskus, F. Faupel, O.C. Aktas, A comparative study of photocatalysis on highly active columnar TiO2 nanostructures in-air and in-solution, Sol. Energy Mater. Sol. Cells. 178 (2018) 170–178.
  • A. A. Ali, A. Haidar, O. Polonskyi, F. Faupel, H. Abdul-Khaliq, M. Veith, O. C. Aktas, Extreme tuning of wetting on 1D nanostructures: from a superhydrophilic to a perfect hydrophobic surface, Nanoscale (2017) 39, 14814-14819
  • S. Veziroglu, M. Kuru, M.Z. Ghori, F.K. Dokan, A.M. Hinz, T. Strunskus, F. Faupel, O.C. Aktas, Ultra- fast degradation of methylene blue by Au/ZnO-CeO2 nano-hybrid catalyst, Mater. Lett. 209 (2017) 486– 491.
  • K. Kiefer, M. Amlung, O. C. Aktas, P. W. Oliveira, H. Abdul-Khaliq, Novel glass-like coatings for cardiovascular implant application: Preparation, characterization and cellular interaction, Materials Science and Engineering C 58 (2016) 812–816
  • K. Kiefer, G. Akpınar, A. Haidar,T. Ikier, C. K. Akkan, E. Akman, J. Lee, M. M. Miro, E. Kaçar, A. Demir, M. Veith, D. Ural, M. Kasap, M. Kesmez, H. Abdul-Khaliq, C. Aktas, Al2O3 micro- and nanostructures affect vascular cell response, RSC Advances 6 (2016) 17460
  • M. W. Laschke, V. A. Augustin, F. Sahin, D. Anschütz, W. Metzger, C. Scheuer, M. Bischoff, C. Aktas, M. D. Menger, Surface modification by plasma etching impairs early vascularization and tissue incorporation of porous polyethylene (Medpor®) implants, Journal of Biomedical Materials Research Part B: Applied Biomaterials (2015) 

  • M. M. Miro, M. Veith, J. Lee, F. Soldera, F. M ücklich, R. Bennewitz, C. Aktas, Journal of Microscopy 258, 3D and 2D structural characterization of 1D Al/Al2O3 biphasic nanostructures, (2015) 2, 113–118
  • F. P. Nothdurft, D. Fontana, S. Ruppenthal, A. May, C. Aktas, Y. Mehraein, P. Lipp, L. Kaestner, Differential behavior of fibroblasts and epithelial cells on structured implant abutment materials: a comparison of materials and surface topographies, Clinical implant dentistry and related research 17 (2015) 6
  • J. Lee, H. Jeon, A. Haidar, H. Abdul-Khaliq, M. Veith, C. Aktas, Y. Kim, Recombinant Phage Coated 1D Al2O3 Nanostructures for Controlling the Adhesion and Proliferation of Endothelial Cells, BioMed Research International (2015) 909807
  • J. Lee, M. Lambert, C. 
K. Akkan, F.P.Nothdurft, O. C. Aktas, Laser induced anisotropic wetting on Ti–6Al–4V surfaces: A. May, N. Agarwal, Materials Letters 138 (2015) 21– 24

  • C. K. Akkan, M. E. Hammadeh, A. May, H. Park, H. Abdul-Khaliq, T. Strunskus, O. C. Aktas, Surface topography and wetting modifications of PEEK for implant applications, Lasers in Medical Science (2014) 29:1633–1639
  • M. Lambert, A. May, C.K. Akkan, N. Agarwal, O.C. Aktas, Ag–Al2O3 optical nanocomposites with narrow particle size distribution prepared by pulsed laser deposition, Materials Letters 137 (2014) 405-408
  • O. Gunduz, Y.M. Sahin, S. Agathopoulos, D. Agaogulları, H. Gökçe, E.S. Kayali, C. Aktas, B. Ben-Nissan,F.N. Oktar, Nano Calcium Phosphate Powder Production Through Chemical Agitation from Atlantic Deer Cowrie Shells (Cypraea cervus Linnaeus), Key Engineering Materials 587 (2014) 80-85 

  • M. Veith, I. Grobelsek, T. Kirs, C. Aktas, C. Dufloux, Oriented aluminum nanocrystals in a one-step process, Thin Solid Films 564 (2014) 128–134
  • C.K. Akkan, A. May, M. Hammadeh, H. Abdul-Khaliq, O.C. Aktas, Matrix shaped pulsed laser deposition: New approach to large area and homogeneous deposition, Applied Surface Science 302 (2014) 149–152 

  • K. Kiefer, J. Lee, A. Haidar, M. M. Miró, C. K. Akkan, M. Veith, O. C. Aktas, H. Abdul-Khaliq, Alignment of human cardiomyocytes on laser patterned biphasic core/shell nanowire assemblies, Nanotechnology 25 (2014) 495101
  • D. V. Pecina, K. Löw, M. M. Miró, D. Anschütz, A. Haidar, I. Müller, C. Aktas, H. Eichler, H. Abdul-Khaliq, Untersuchung der Hämokompatibilität von neuen Beschichtungen für mechanische Herzklappen: Thorac Cardiovascular Surgery (2014) 62-p53
  • K. Löw , J. Lee , A. Haidar, M. M. Miró, C. K. Akkan, M. Veith, C. Aktas, H. Abdul- Khaliq, Guided orientation of human cardiomyocytes on laser patterned biphasic core/shell nanowires, Thorac Cardiovascular Surgery (2014) 62-v36
  • W. Metzger, B. Schwab, M. M. Miro, S.Grad, A. Simpson, M. Veith, G. Wennemuth, V. Zaporojtchenko, S. Verrier, J. S. Hayes, M. Bubel, T. Pohlemann, M. Oberringer, C. Aktas, Induction of osteogenic differentiation by nanostructured alumina surfaces, Journal of Biomedical Nanotechnology 9 (2013) 1–15
  • J. Lee, M. M. Miró, C. K. Akkan, A. Haidar, W. Metzger, L. K. Schwarz, V. Zaporojtchenko, K. H. Schäfer, H. Abdul- Khaliq, M. Veith, C. Aktas, Development of multi scale structured Al2O3 nanowires for controlled cell guidance, Journal of Biomedical Nanotechnology 9 (2013) 1-4
  • M. Oberringer, E. Akman, J. Lee, W. Metzger, C. K. Akkan, E. Kacar, A. Demir, H. Abdul-Khaliq, N. Pütz, G. Wennemuth, T. Pohlemann, M. Veith, C. Aktas, Reduced myofibroblast differentiation on femtosecond laser treated 316LS stainless steel, Materials Science and Engineering C 33 (2013) 901–908
  • M. Veith , J. Lee , H. Schmid, C. Aktas, Ultra-Rapid Growth of Biphasic Nanowires in Microand Hypergravity, Small 9 (2013) 7, 1042–1046
  • E. Akman, O.C. Aktas, B. Genc Oztoprak, M. Gunes, E. Kacar, O. Gundogdu, Fragmentation of the gold nanoparticles using femtosecond Ti:Sapphire laser and their structural evolution, A. Demir, Optics & Laser Technology 49 (2013) 156–160
  • J. Lee, L. K. Schwarz, C. K. Akkan, M. M. Miro ́, O. T. Abad, K. H. Schafer, M. Veith, C. Aktas, Guidance of glial cells and neuritis from dorsal root ganglia by laser induced periodic patterning of biphasic core/shell nanowires, Physica Status Solidi A (2013) 1–5
  • C. K. Akkan, M. Hammadeh, S. Brück, H. W. Park, M. Veith, H. Abdul-Khaliq, O. C. Aktas, Plasma and short pulse laser treatment of medical grade PEEK surfaces for controlled wetting, Materials Letters 109 (2013) 261–264
  • H. Kenar, E. Akman, E. Kacar, A. Demir, H. Park, H. Abdul-Khaliq, C. Aktas, E.Karaoz, Femtosecond laser treatment of 316L improves its surface nanoroughness and carbon content and promotes osseointegration, Colloids and Surfaces B: Biointerfaces 108 (2013) 305–312
  • M. Veith, C. Dufloux, S. R. Ghaemi, C. Aktas, N. H. Voelcker, Gradients of Al/Al2O3 nanostructures for screening mesenchymal stem cell proliferation and differentiation, Open Journal of Regenerative Medicine 2 (2013) 3, 74-79
  • F.N. Oktar, S. Agathopoulos, L.S. Ozyegin, I.G. Turner, O. Gunduz, N. Demirkol, S. Brück, B. Ben-Nissan, R. Samur, E.S. Kayali, C. Aktas, Nano-Bioceramic Production via Mechano-Chemical Conversion (Ultrasonication), Key Engineering Materials 529-530 (2013) 609-614
  • C. Aktas, J. Lee, M. M. Míro, Af. Barnoush, M. Veith, Alpha alumina synthesis by laser treatment of bi-phasic nanowires, Alpha alumina synthesis by laser treatment of bi-phasic nanowires, Applied Surface Science 278 (2013) 82–85
  • C. Aktas, E. Dörrschuck, C. Schuh, M. M. Miró, J. Lee, N. Pütz, G. Wennemuth, W. Metzger, M. Oberringer, M. Veith, H. Abdul-Khaliq, Micro- and nanostructured Al2O3 surfaces for controlled vascular endothelial and smooth muscle cell adhesion and proliferation,Materials Science and Engineering C 32 (2012) 1017–1024
  • M. Veith, J. Lee, M. M. Miro, C. K. Akkan, C. Dufloux, O. C. Aktas, Bi-phasic nanostructures for functional applications, Chemical Society Reviews 41 (2012) 5117–5130
  • C. Aktas, K. Löw, M. M. Miro, A. Haidar, S. Brück, H. Abdul-Khaliq, Thrombusformation: Oberflachen modifizierte Beschictungen für künstliche Herzklppen, Deutsche Zeitschrift für Klinische Forschung, 9/10 (2012) 46-50
  • A. A. Ali, H. Nimir, C. Aktas, V. Huch, U. Rauch, K. H. Schäfer, M. Veith, Organoplatinum(II) Complexes with 2-Acetylthiophene Thiosemicarbazone: Synthesis, Characterization, Crystal Structures, and in Vitro Antitumor Activity, Organometallics 31 (2012) 2256−2262
  • O. C. Aktas, M. Sander, M. M. Miró, J. Lee, C. K. Akkan, H. Smail, A. Ott, M. Veith, Enhanced fibroblast cell adhesion on Al/Al2O3 nanowires, Applied Surface Science 257 (2011) 3489– 3494
  • H. Gokce, D. Agaogulları, M. Yetmez, O. Guunduz, C. Aktas, M.L. Ovecoglu, I. Duman, S. Agathopoulos, F.N. Oktar, Production and characterization of composites of hydroxyapatite reinforced with nano- yttrium-oxide, Journal of Biomechanics 44 (2011) ee1–e21
  • C. Aktas, J. Schütt, H. Abdul-Khaliq, Beschictungensverharen für Stents: Veredelte Schlauche verhindern Thrombosegefahr, Deutsche Zeitschrift für Klinische Forschung, 9/10 (2011) 47-50
  • C. Aktas, A. Haidar, M. M. Miró, E. Dörrschuck, J. Lee, M. Veith, H. Abdul-Khaliq, Improved endothelialisation on nanostructured surfaces, Advanced Materials Research 324 (2011) 105- 108
  • M. Veith, O. C. Aktas, W Metzger, D. Sossong, H. Ullah Wazir, I. Grobelsek, N Pütz, G. Wennemuth, T Pohlemann, M. Oberringer, Adhesion of fibroblasts on micro- and nanostructured surfaces prepared by chemical vapor deposition and pulsed laser treatment, Biofabrication 2 (2010) 035001
  • M. Veith, C. Petersen, O. C. Aktas, W. Metzger, M. Oberringer, T. Pohlemann, M. Müller, S. Gerbes, Chemical vapour deposition of aluminium based micro- and nanostructured surfaces for biological applications, Materials Letters 62 (2008) 3842–3845
  • M. Veith, E. Sow, U. Werner, C. Petersen, O. C. Aktas, The transformation of core/shell aluminium/alumina nanoparticles into nanowires, European Journal of Inorganic Chemistry (2008) 5181–5184
  • A. Biswas, D.K. Avasthi, D. Fink, J. Kanzow, U. Schürmann, S.J. Ding, O.C. Aktas, U. Saeed, V. Zaporojtchenko, F. Faupel, R. Gupta, N. Kumar, Nanoparticle architecture in carbonaceous matrix upon swift heavy ion irradiation of polymer–metal nanocomposites, Nuclear Instruments and Methods in Physics Research B 217 (2004) 39–50
  • R. Adelung, O. C. Aktas, J. Franc, A. Biswas, R. Kunz, M. Elbahri, J. Kanzow, U. Schürmann, F. Faupel, Strain-controlled growth of nanowires within thin-film cracks, Nature Materials
  • A. Biswas, O. C. Aktas, U. Schürmann, U. Saeed, V. Zaporojtchenko, F. Faupel, T. Strunskus, Tunable multiple plasmon resonance wavelengths response from multicomponent polymer- metal nanocomposite systems, Applied Physics Letters 84, 2655 (2004) 2655-2657
  • A. Biswas, O. C. Aktas, J. Kanzow, U. Saeed, T. Strunskus, V. Zaporojtchenko, F. Faupel, Polymer–metal optical nanocomposites with tunable particle plasmon resonance prepared by vapor phase co-deposition, Materials Letters 58 (2004) 1530–1534
  • A. Biswas, R. Kunz, M. Elbahri, R. Adelung, O. C. Aktas, U. Saeed, U. Schürmann, H. Takele, V. Zaporojtchenko, F. Faupel, T. Strunskus, Arrays of wirelike microstructures of Ag with visible wavelength transparent plasmonic response at near-ultraviolet and midinfrared regions, Applied Physics Letters 85 (2004) 1952 -1954.
  • A. Biswas, H. Eilers, F. Hidden Jr., O. C. Aktas, C. V. S. Kiran, Large broadband visible to infrared plasmonic absorption from Ag nanoparticles with a fractal structure embedded in a Teflon AF® matrix, Applied Physics Letters (2006) 88, 013103
Last Updated:
27/05/2020 - 17:57

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