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  • 1.
    Borchardt, Per
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Osseointegration of fiber-reinforced composite implants: Histological and ultrastructural observations2014In: Dental Materials, ISSN 0109-5641, E-ISSN 1879-0097, Vol. 30, no 12, p. e384-e395Article in journal (Refereed)
    Abstract [en]

    Objectives. The aim of this study was to evaluate the bone tissue response to fiber-reinforced composite (FRC) in comparison with titanium (Ti) implants after 12 weeks of implantation in cancellous bone using histomorphometric and ultrastructural analysis. Materials and methods. Thirty grit-blasted cylindrical FRC implants with BisGMA-TEGDMA polymer matrix were fabricated and divided into three groups: (1) 60 s light-cured FRC (FRC-L group), (2) 24 h polymerized FRC (FRC group), and (3) bioactive glass FRC (FRC-BAG group). Titanium implants were used as a control group. The surface analyses were performed with scanning electron microscopy and 3D SEM. The bone-implant contact (BIC) and bone area (BA) were determined using histomorphometry and SEM. Transmission electron microscopy (TEM) was performed on Focused Ion Beam prepared samples of the intact bone-implant interface. Results. The FRC, FRC-BAG and Ti implants were integrated into host bone. In contrast, FRC-L implants had a consistent fibrous capsule around the circumference of the entire implant separating the implant from direct bone contact. The highest values of BIC were obtained with FRC-BAG (58 ± 11%) and Ti implants (54 ± 13%), followed by FRC implants (48 ± 10%), but no significant differences in BIC or BA were observed (p = 0.07, p = 0.06, respectively). TEM images showed a direct contact between nanocrystalline hydroxyapatite of bone andboth FRC and FRC-BAG surfaces. Conclusion. Fiber-reinforced composite implants are capable of establishing a close bone contact comparable with the osseointegration of titanium implants having similar surface roughness.

  • 2. Bryne, Lars Elof
    et al.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Ernstsson, Marie
    Englund, Finn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Ageing of modified wood. Part 2: Determination of surface composition of acetylated, furfurylated, and thermally modified wood by XPS and ToF-SIMS2010In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 64, no 3, p. 305–313-Article in journal (Refereed)
    Abstract [en]

    The main objective of this work was to study the chemical composition of surfaces and ageing effects on acetylated pine (Pinus sylvestris), heat treated spruce (Picea abies), and furfurylated radiata pine (Pinus radiata) in comparison to unmodified wood. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were the instruments of choice. Observation with a low-vacuum scanning electron microscope (LV-SEM) complemented the study. The spectroscopic information was also linked to a parallel wettability study on matched wood samples by the Wilhelmy method. The results show that XPS and ToF-SIMS are two powerful tools that in combination give complementary information, both quantitative and qualitative, and are well suited for observation of the ageing process of different wood surfaces. The hydrophobization process as a result of migration of extractives during ageing was well quantified by the XPS measurements and the results correlated well with wetting results. Several specific hydrophobic substances could be identified by ToF-SIMS measurements.

  • 3. Bryne, Lars Elof
    et al.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Ernstsson, Marie
    Englund, Finn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Söderström, Ove
    UV-laser irradiated wood - Some aspects on micromorphology, wettability, surface composition and liquid permeability2008In: 4th meeting of the Nordic Baltic Network in Wood Material Science and Engineering (WSE), Latvian State Instiute of Wood Chemistry , 2008, , p. 75-82Conference paper (Other academic)
  • 4.
    Carlred, Louise
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Simultaneous imaging of amyloid-β and lipids in brain tissue using antibody-coupled liposomes and time-of-flight secondary ion mass spectrometry2014In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 136, no 28, p. 9973-9981Article in journal (Refereed)
    Abstract [en]

    The spatial localization of amyloid-β peptide deposits, the major component of senile plaques in Alzheimer's disease (AD), was mapped in transgenic AD mouse brains using time-of-flight secondary ion mass spectrometry (ToF-SIMS), simultaneously with several endogenous molecules that cannot be mapped using conventional immunohistochemistry imaging, including phospholipids, cholesterol and sulfatides. Whereas the endogenous lipids were detected directly, the amyloid-β deposits, which cannot be detected as intact entities with ToF-SIMS because of extensive ion-induced fragmentation, were identified by specific binding of deuterated liposomes to antibodies directed against amyloid-β. Comparative investigation of the amyloid-β deposits using conventional immunohistochemistry and fluorescence microscopy suggests similar sensitivity but a more surface-confined identification due to the shallow penetration depth of the ToF-SIMS signal. The recorded ToF-SIMS images thus display the localization of lipids and amyloid-β in a narrow (∼10 nm) two-dimensional plane at the tissue surface. As compared to a frozen nontreated tissue sample, the liposome preparation protocol generally increased the signal intensity of endogenous lipids, likely caused by matrix effects associated with the removal of salts, but no severe effects on the tissue integrity and the spatial distribution of lipids were observed with ToF-SIMS or scanning electron microscopy (SEM). This method may provide an important extension to conventional tissue imaging techniques to investigate the complex interplay of different kinds of molecules in neurodegenerative diseases, in the same specimen. However, limitations in target accessibility of the liposomes as well as unspecific binding need further consideration.

  • 5. Carlsson, Lennart
    et al.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    A cell preparation method allowing subcellular localization of cholesterol and phosphocholine with imaging ToF-SIMS2003In: Colloids and Surfaces B: Biointerface, Vol. 30, no 30, p. 87-92Article in journal (Refereed)
    Abstract [en]

    A cell preparation method allowing subcellular localization of cholesterol and phosphocholine with imaging ToF-SIMS

  • 6.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Some aspects on the determination of surface chemical composition and wettability of modified wood2009In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 4, no 1-2, p. 80-85Article in journal (Refereed)
  • 7.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Some aspects on the determination of surface chemical composition and wettability of modified wood2009In: Proceedings of The Fourth European Conference on Wood Modification., SP Technical Research Institute of Sweden , 2009, , p. 553-560Conference paper (Other academic)
  • 8.
    Englund, Finn
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Bryne, Lars Elof
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Spectroscopic studies of surface chemical composition and wettability of modified wood2009In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 4, no 1-2, p. 80–85-Article in journal (Refereed)
  • 9.
    Gunnarsson, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Kollmer, Felix
    Sohn, Sascha
    Höök, Fredrik
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    High-resolution mass spectrometry imaging of supported lipid bilayers and individual lipid vesicles2010In: Analytical Chemistry, Vol. 82, p. 2426-2433Article in journal (Refereed)
  • 10.
    Gunnarsson, Anders
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Höök, Fredrik
    Liposome-based bio-barcodes for on-chip DNA detection using imaging mass spectrometry2010In: Nano Letters, Vol. 10, p. 732-737Article in journal (Refereed)
  • 11.
    Hoseini, Mohammed
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    A new screening method for the tribological investigation of artificial joints2001In: Tribology in biomechanical systems. Proceedings of 2nd World Tribology Congress, Vienna, September 3-7, 2001, 2001Conference paper (Other academic)
  • 12.
    Hoseini, Mohammed
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Tribological investigation of oriented HDPE2002In: Journal of Biomedical Materials Research, Vol. 61, no 4, p. 6-Article in journal (Other academic)
  • 13.
    Hoseini, Mohammed
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Boldizar, Antal
    Tribological investigation of oriented HDPE1999In: Proc. Polymer Processing Society, Asia/Australia Regional Meeting, Bangkok, Dec. 1999., 1999, , p. 109-111Conference paper (Other academic)
  • 14.
    Ivarsson, M.
    et al.
    Swedish Museum of Natural History, Sweden.
    Broman, C.
    Stockholm University, Sweden.
    Sturkell, E.
    University of Gothenburg, Sweden.
    Ormö, J.
    Instituto Nacional de Técnica Aeroespacial, Spain.
    Siljeström, Sandra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Van Zuilen, M.
    Université Sorbonne Paris Cité, France.
    Bengtson, A.
    Swedish Museum of Natural History, Sweden.
    Fungal colonization of an Ordovician impact-induced hydrothermal system2013In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 3, no Dec, p. 3487-Article in journal (Refereed)
    Abstract [en]

    Impacts are common geologic features on the terrestrial planets throughout the solar system, and on at least Earth and Mars impacts have induced hydrothermal convection. Impact-generated hydrothermal systems have been suggested to possess the same life supporting capability as hydrothermal systems associated with volcanic activity. However, evidence of fossil microbial colonization in impact-generated hydrothermal systems is scarce in the literature. Here we report of fossilized microorganisms in association with cavity-grown hydrothermal minerals from the 458â.Ma Lockne impact structure, Sweden. Based on morphological characteristics the fossilized microorganisms are interpreted as fungi. We further infer the kerogenization of the microfossils, and thus the life span of the fungi, to be contemporaneous with the hydrothermal activity and migration of hydrocarbons in the system. Our results from the Lockne impact structure show that hydrothermal systems associated with impact structures can support colonization by microbial life.

  • 15.
    Jansson, Anna
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Analysis of polymer oxidation using 18O2 and TOF-SIMS2003In: Polymer Degradation and Stability, Vol. 80, no 80, p. 345-352Article in journal (Refereed)
  • 16.
    Karlsson, Joakim
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Characterization and comparison of materials produced by Electron Beam Melting (EBM) of two different Ti-6Al-4V powder fractions2013In: Journal of Materials Processing Technology, ISSN 0924-0136, E-ISSN 1873-4774, Vol. 213, no 12, p. 2109-2118Article in journal (Refereed)
  • 17.
    Karlsson, Joakim
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik. Uppsala University, Sweden.
    Norell, Mats
    Chalmers University of Technology, Sweden.
    Ackelid, Ulf
    Arcam AB, Sweden.
    Engqvist, Håkan
    Uppsala University, Sweden.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Surface oxidation behavior of Ti-6Al-4V manufactured by Electron Beam Melting (EBM®)2015In: Journal of Manufacturing Processes, ISSN 1526-6125, Vol. 17, p. 120-126Article in journal (Refereed)
    Abstract [en]

    Additive manufacturing is an emerging manufacturing technology that enables production of patient specific implants, today primarily out of titanium. For optimal functionality and proper integration between the titanium implant and the body tissues surface properties, such as surface oxide thickness is of particular importance, as it is primarily the surface of the material which interacts with the body. Hence, in this study the surface oxidation behavior of titanium parts manufactured by Electron Beam Melting (EBM®) is investigated using the surface sensitive techniques ToF-SIMS and AES. Oxide thicknesses comparable to those found on conventionally machined surfaces are found by both analysis techniques. However, a build height dependency is discovered for different locations of the EBM® manufactured parts due to the presence of trapped moisture in the machine and temperature gradients in the build.

  • 18. Lanekoff, Ingela
    et al.
    Hill, Rowland
    Fletcher, John S.
    Vickerman, John C.
    Winograd, Nick
    Ewing, Andrew
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Kurczy, Michael E.
    Time of Flight Mass Spectrometry Imaging of Samples Fractured In Situ with a Spring-Loaded Trap System.2010In: Analytical Chemistry, Vol. 82, p. 6652-6659Article in journal (Refereed)
  • 19.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Bone response to physical-vapour-deposited titanium dioxide coatings on titanium implants2013In: Clinical Oral Implants Research, ISSN 0905-7161, E-ISSN 1600-0501, Vol. 24, no 9, p. 1009-1017Article in journal (Refereed)
  • 20.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Bone response to surface-modified titanium implants: Studies on the early tissue response to implants with different surface characteristics2013In: International Journal of Biomaterials, ISSN 1687-8787, E-ISSN 1687-8795, no Aug, p. 412482-Article in journal (Refereed)
  • 21.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Bone tissue reactions to biomimetic ion-substituted apatite surfaces on titanium implants2012In: Journal of the Royal Society Interface, ISSN 1742-5689, E-ISSN 1742-5662, Vol. 9, no 72, p. 1615-1624Article in journal (Refereed)
  • 22.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Commercially available dental implants: Review of their surface characteristics2012In: Journal of Biomaterials and Tissue Engineering, ISSN 2157-9083, E-ISSN 2157-9091, Vol. 2, no 2, p. 112-124Article in journal (Refereed)
  • 23.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Contamination of polyethylene cups with polymethylmethacrylate particles”2001In: The Journal of Arthroplasty, ISSN 0883-5403, E-ISSN 1532-8406, Vol. 16, no 7, p. 905-908Article in journal (Other academic)
  • 24.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Contamination of polyethylene cups with polymethylmethacrylate particles. (An experimental study)1999Conference paper (Other academic)
  • 25.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Crystallization kinetics of thin amorphous water films on surfaces: theory and computer modeling2004In: Phys. Chem. Chem. Phys, Vol. 6, p. 1890-1898Article in journal (Other academic)
  • 26.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Highly packed and aligned fluoride substituted hydroxyapatite via a surfactant-free process2012In: Journal of Biomedical Materials Research. Part B - Applied biomaterials, ISSN 1552-4973, E-ISSN 1552-4981, Vol. 100, no 1, p. 75-81Article in journal (Refereed)
  • 27.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Impact of nanostructure on bacterial adhesion and EPS production2011In: European Cells and Materials, ISSN 1473-2262, E-ISSN 1473-2262, Vol. 21, no S1, p. 42-Article in journal (Refereed)
  • 28.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Impact of polymer surface affinity of novel antifouling agents2004In: Biotechnology and Bioengineering, Vol. 86, p. 1-8Article in journal (Refereed)
  • 29.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Incorporation of active ions into calcium phosphate coatings, their release behavior and mechanism2012In: Biomedical Materials, ISSN 1748-6041, E-ISSN 1748-605X, Vol. 7, no 4, p. 45018-Article in journal (Refereed)
  • 30.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Increased wear of UHMWPE caused by calcium phosphate precipitation2001In: Proceedings of 17th European Biomaterials Conference, London, England, September 12-14, 2001, 2001Conference paper (Other academic)
  • 31.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Influence of well-defined titanium-coated topographical nanostructures on bone formation in vivo2011In: European Cells and Materials, ISSN 1473-2262, E-ISSN 1473-2262, Vol. 21, no S1, p. 17-Article in journal (Refereed)
  • 32.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Interaction between dendrimers and thin polymer films studied by TOF-SIMS2001Conference paper (Other academic)
  • 33.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Interaction of anti-barnacle drugs (catemines) with components in marine paint formulations2000Conference paper (Other academic)
  • 34.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Interactions between human whole blood and modified TiO2 surfaces: Influence of surface topography and oxide thickness on leukocyte adhesion and activation2001In: Biomaterials, ISSN 0142-9612, E-ISSN 1878-5905, Vol. 22, no 14, p. 1987-1996Article in journal (Other academic)
  • 35.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Nanostructured noble metals on implants in vitro and in vivo2011In: European Cells and Materials, ISSN 1473-2262, E-ISSN 1473-2262, Vol. 21, no S1, p. 50-Article in journal (Refereed)
  • 36.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Properties of thin high-density polyethylene films prepared by spin coating1999In: Polymeric materials science and engineering, ISSN 0743-0515, Vol. 80, p. 398-399Article in journal (Other academic)
  • 37.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Role of nanostructured gold surfaces on monocyte activation and Staphylococcus epidermidis biofilm formation2014In: International Journal of Nanomedicine, ISSN 1176-9114, E-ISSN 1178-2013, Vol. 9, no 1, p. 775-794Article in journal (Refereed)
    Abstract [en]

    The role of material surface properties in the direct interaction with bacteria and the indirect route via host defense cells is not fully understood. Recently, it was suggested that nanostructuredimplant surfaces possess antimicrobial properties. In the current study, the adhesion and biofilm formation of Staphylococcus epidermidis and human monocyte adhesion and activationwere studied separately and in coculture in different in vitro models using smooth gold and well-defined nanostructured gold surfaces. Two polystyrene surfaces were used as controls in the monocyte experiments. Fluorescent viability staining demonstrated a reduction in the viability of S. epidermidis close to the nanostructured gold surface, whereas the smooth gold correlated with more live biofilm. The results were supported by scanning electron microscopy observations, showing higher biofilm tower formations and more mature biofilms on smooth gold compared with nanostructured gold. Unstimulated monocytes on the different substrates demonstrated low activation, reduced gene expression of pro- and anti-inflammatory cytokines, and low cytokine secretion. In contrast, stimulation with opsonized zymosan or opsonized live S. epidermidis for 1 hour significantly increased the production of reactive oxygen species, the gene expression of tumor necrosis factor-α(TNF-α), interleukin-1β (IL-1β), IL-6, and IL-10, as well as the secretion of TNF-α, demonstrating the ability of the cells to elicit a response and actively phagocytose prey. In addition, cells cultured on the smooth gold and the nanostructured gold displayed a different adhesion pattern and a more rapid oxidative burst than those cultured on polystyrene upon stimulation. We conclude that S. epidermidis decreased its viability initially when adhering to nanostructured surfaces compared with smooth gold surfaces, especially in the bacterial cell layers closest to the surface. In contrast, material surface properties neither strongly promoted nor attenuated the activity of monocytes when exposed to zymosan particles or S. epidermidis.

  • 38.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Spin coating and characterization of thin high-density polyethylene films2001In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 34, no 21, p. 7496-7503Article in journal (Other academic)
  • 39.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Structure and surface of TiNi human implants2001In: Biomaterials, ISSN 0142-9612, E-ISSN 1878-5905, Vol. 22, no 15, p. 2131-2138Article in journal (Other academic)
  • 40.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Surface modification of spin-coated high-density polyethylene films by argon and oxygen glow discharge treatments2002In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 202, p. 92-103Article in journal (Other academic)
  • 41.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    The stimulation of an osteogenic response by classical monocyte activation2011In: Biomaterials, ISSN 0142-9612, E-ISSN 1878-5905, Vol. 32, no 32, p. 8190-8204Article in journal (Refereed)
  • 42.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    TOF-SIMS characterization of a number of different liquid chromatographic media aimed for purification of biotheraputics2001In: 13th International Conference on Secondary Ion Mass Spectrometry and Related Topics (SIMS XIII), Nara, Japan, November 11-16, 2001. Proceedings, 2001Conference paper (Other academic)
  • 43.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Tribological investigation of oriented HDPE1999In: Proc. Annual ACS Spring Meetings. Div. Polymer Science and Engineering, 1999Conference paper (Other academic)
  • 44.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    UV-light treatment of thin high-density polyethylene films monitored by quartz crystal microbalance2004In: Journal of Applied Polymer Science, Vol. 92, p. 2833-2839Article in journal (Refereed)
  • 45.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Boldizar, Antal
    TOF-SIMS study of injection-moulded polystyrene2003In: Journal of Polymer and Engineering & Science, Vol. 43, p. 1289-1297Article in journal (Refereed)
    Abstract [en]

    TOF-SIMS study of injection-moulded polystyrene

  • 46.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Boldizar, Antal
    Tribological investigation of oriented HDPE2002In: Journal of Biomedical Materials Research, ISSN 0021-9304, E-ISSN 1097-4636, Vol. 61, no 4, p. 634-640Article in journal (Other academic)
  • 47.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Borchardt, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Free-form-fabricated commercially pure Ti and Ti6Al4V porous scaffolds support the growth of human embryonic stem cell-derived mesodermal progenitors2012In: Scientific World Journal, ISSN 1537-744X, E-ISSN 1537-744X, Vol. 2012, p. 646417-Article in journal (Refereed)
  • 48.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Hansson, M
    Grunditz, T
    Isaksson, Mats
    Jansson, Svante
    Mölne, Johan
    Berg, G
    Iodine Content and Distribution in Extratumoral and Tumor Thyroid Tissue Analyzed with X-Ray Fluorescence and Time-of-Flight Secondary Ion Mass Spectrometry2008In: Thyroid., Vol. 18, no 11, p. 1215-1220Article in journal (Refereed)
  • 49.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Lyvén, Benny
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Oorganisk kemi (Kmoo).
    Osseointegration of titanium with an antimicrobial nanostructured noble metal coating2013In: Nanomedicine: Nanotechnology, Biology, and Medicine, Vol. 9, no 7, p. 1048-1056Article in journal (Refereed)
  • 50.
    Lausmaa, Jukka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Siljeström, Sandra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Hode, Tomas
    Toporski, Jan
    Thiel, Volker
    Detection of organic biomarkers in crude oil using ToF-SIMS2009In: Organic Geochemistry, Vol. 40, p. 135-143Article in journal (Refereed)
123 1 - 50 of 120
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