Surface modifications of a titanium implant by a picosecond Nd:YAG laser operating at 1064 and 532nm

Trtica, M.; Gaković, B.; Batani, D.; Desai, T.; Panjan, Peter; Radak, B.

doi:10.1016/j.apsusc.2006.05.024

Cited by 98 publications

(39 citation statements)

References 16 publications

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“…Excellent precision can be obtained with ultrashort-pulsed solid state lasers [10][11][12][13][14]. However, all previous results with ultrashort pulses were at kHz-or Hz-level repetition rates.…”

Section: Introductionmentioning

confidence: 97%

Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers

Erdoğan¹,

Öktem²,

Kalaycıoğlu³

et al. 2011

Opt. Express

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Abstract:We propose and demonstrate the use of short pulsed fiber lasers in surface texturing using MHz-repetition-rate, microjoule-and sub-microjoule-energy pulses. Texturing of titanium-based (Ti6Al4V) dental implant surfaces is achieved using femtosecond, picosecond and (for comparison) nanosecond pulses with the aim of controlling attachment of human cells onto the surface. Femtosecond and picosecond pulses yield similar results in the creation of micron-scale textures with greatly reduced or no thermal heat effects, whereas nanosecond pulses result in strong thermal effects. Various surface textures are created with excellent uniformity and repeatability on a desired portion of the surface. The effects of the surface texturing on the attachment and proliferation of cells are characterized under cell culture conditions. Our data indicate that picosecond-pulsed laser modification can be utilized effectively in low-cost laser surface engineering of medical implants, where different areas on the surface can be made cell-attachment friendly or hostile through the use of different patterns. 192-203 (1997) Lett. 17, 733-737 (2004). 25. S. P. S. Porto, P. A. Fleury, and T. C. Damen, "Raman spectra of TiO2, MgF2, Zn F2, FeF2, and MnF2," Phys. Rev. 154, 522-526 (1967

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Section: Introductionmentioning

confidence: 97%

Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers

Erdoğan¹,

Öktem²,

Kalaycıoğlu³

et al. 2011

Opt. Express

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“…1a,b). The damage threshold is dened as the minimum laser radiation energy density required for creating detectable damage on the target [16]. It is observed from results that the damage threshold for the Nd:YAG (1064 nm)stainless steel interaction was about 2 J/cm 2 .…”

Section: Resultsmentioning

confidence: 99%

Single Pulse Laser Ablation of AISI 316L Stainless Steel Surface Using Nd:YAG Laser Irradiation

et al. 2014

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The interaction of single-pulse Nd:YAG laser, operating at 1064 nm wavelength and 6 ns pulse duration, with AISI 316L stainless steel target surface was investigated experimentally and theoretically. Surface modication of stainless steel using laser irradiation was studied by observing the eects of varying incident laser pulse intensities on surface morphology. Surface structure of laser treated stainless steel was determined by optical microscopy and prolometry analyses. Numerical calculation by heat transfer equation was performed for single laser pulse irradiation. The results, obtained by theoretical and experimental processes, of the interaction between single-pulse Nd:YAG laser irradiation and AISI 316L stainless steel target surface are reported.

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“…Proofs of these statements are presented in publications [9][10][11][12][13][14][15][16][17][18]. There are materials similar to the structure of the tissue.…”

Section: An Important Aspect In the Development Of An Effective Treatmentioning

confidence: 98%

Bio-Inspiered Blood-Contacting Materials Elaborated For The Heart Assist System

Major¹

2015

Archives of Metallurgy and Materials

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I dedicate this work to my Father, who is also my Mentor.He has enabled me to execute my professional passion.The paper presents the main achievements of the author on the development of blood contacting materials. The main objective of the work is to elaborate materials dedicated for the heart support systems. Appropriately designed biomaterial surfaces enable fully controlled cellular differentiation, proliferation, and even restoration of the tissue structure on solids. The paper presents two approaches to modify the surface, which can control the life processes of tissue. The first solution considers the topography in the form of cell niches. The main objective of the study is a modified surface of thin films deposited on the polymer substrate constituting the microenvironment for the cells caused by residual stress and optimized stiffness of the surface using the plasma methods. The research hypothesis was the plasma surface modification method generating a controlled contribution of residual stress in the coating affect the surface topography in the form of nano-wrinkles similar to the niches in the tissue environment. Topography and stiffness of the surface coating allows the targeted cellular differentiation. The properly formed surface topography effectively inhibits blood clotting processes. The second solution considers implementation of self-organizing feature of extracellular matrix like coatings and selective cell mobilization. The multiscale analysis and phenomenologic description were performed to experimental research. For this purpose, the deposition method was based on electrostatic interactions in polyelectrolytes. This type of cell-polymer structure imitate the native structures.Keywords: Surface modification, cell-material interaction, tissue precursors, materials for regenerative medicine Praca przedstawia najważniejsze osiągniecia autora dotyczące rozwoju materiałów do kontaktu z krwią. Głównym celem prowadzonych prac są materiały o przeznaczeniu w komorach wspomagania serca. Odpowiednio zaprojektowana powierzchnia biomateriału umożliwia w pełni kontrolowane różnicowanie komórkowe, proliferację i nawet odtworzenie struktury tkanki na ciele stałym. W pracy przedstawiono dwa podejścia modyfikacji powierzchniowej, które pozwalają sterować procesami życio-wymi tkanki. Pierwszym rozwiązaniem są powłoki o topografii nisz komórkowych. Celem głównym badań jest zmodyfikowana powierzchnia materiałów cienkowarstwowych nałożonych na podłoże polimerowe stanowiąca mikrośrodowisko dla wychwytu i kontrolowanego różnicowania komórek uzyskane przez odpowiedni udział naprężeń własnych i zoptymalizowaną sztywność powierzchniową. Ukierunkowana mikrostrukturą i właściwościami powierzchniowymi monowarstwa hamuje procesy wykrzepiania krwi. Drugie rozwiązanie dotyczy powłok o strukturze macierzy zewnątrzkomórkowej. Celem badań jest wieloskalowa analiza i opis fenomenologiczny samoorganizujących się powłok z funkcją selektywnej mobilizacji komórkowej. Jest to nowoczesne podejście na poziomie badań eksperymentalnyc...

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Surface modifications of a titanium implant by a picosecond Nd:YAG laser operating at 1064 and 532nm

Cited by 98 publications

References 16 publications

Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers

Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers

Single Pulse Laser Ablation of AISI 316L Stainless Steel Surface Using Nd:YAG Laser Irradiation

Bio-Inspiered Blood-Contacting Materials Elaborated For The Heart Assist System

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