Reijo Lappalainen

Lähde, Anna; Haluska, Ondrej; Alatalo, Sara-Maaria; Sippula, Olli; Mešceriakovas, Arunas; Lappalainen, Reijo; Nissinen, Tuomo; Riikonen, Joakim; Lehto, Vesa-Pekka. 2020. Synthesis of graphene-like carbon from agricultural side stream with magnesiothermic reduction coupled with atmospheric pressure induction annealing Nano Express 1 1: 010014. 2020

Tiitta, Markku; Tiitta, Valtteri; Heikkinen, Jorma; Lappalainen, Reijo; Tomppo, Laura. 2020. Classification of Wood Chips Using Electrical Impedance Spectroscopy and Machine Learning Sensors 20 4: 1076. 2020

Salami, A; Vilppo, T; Pitkänen, S; Weisell, J; Raninen, K; Vepsäläinen, J; Lappalainen, R. 2020. Cost-effective FTIR and 1H NMR spectrometry used to screen valuable molecules extracted from selected West African trees by a sustainable biochar process Scientific African 8: 1-13. 2020

Tiitta, Markku; Tiitta, Valtteri; Gaal, Mate; Heikkinen, Jorma; Lappalainen, Reijo; Tomppo, Laura. 2020. Air-coupled ultrasound detection of natural defects in wood using ferroelectret and piezoelectric sensors Wood science and technology Published online 28.05.2020: 1-14. 2020

Emran, S; Hurskainen, M; Tomppo, L; Lappalainen, R; Kullaa, AM; Myllymaa, S. 2019. Bioimpedance spectroscopy and spectral camera techniques in detection of oral mucosal diseases: a narrative review of the state-of-the-art Journal of medical engineering and technology 43 8: 474-491. 2019

Fotoniikasta valoa Suomen hyvinvointiin: Selvitys alan vaikuttavuudesta ja kasvunäkymistä. Aalto, Timo; Ailisto, Heikki; Antila, Jarkko; Eklin, Tero; Haapala, Antti; Herrala, Esko; Heräjärvi, Henrik; Hirvi, Timo; Hänninen, Pekka; Jokinen, Kimmo; Keinänen, Markku; Kola, Kari; Korppi-Tommola, Jouko; Kutila, Matti; Lappalainen, Reijo; Laurila, Toni; Luukanen, Arttu; Kauranen, Martti; Oksanen, Elina; Purmonen, Juha; Räisänen, Antti; Saarinen, Jyrki; Salmelin, Eero; Salminen, Antti; Stenber. 2019 2019

Miettinen, T; Myllymaa, K; Muraja-Murro, A; Westeren-Punnonen, S; Hukkanen, T; Töyräs, J; Lappalainen, R; Mervaala, E; Sipilä, K; Myllymaa, S. 2019. Polysomnographic scoring of sleep bruxism events is accurate even in the absence of video recording but unreliable with EMG-only setups Sleep and breathing [First Online: 12 August 2019]: 1-12. 2019

Uddin, Mezbah; Kiviranta, Kalle; Suvanto, Sari; Alvila, Leila; Leskinen, Jari; Lappalainen, Reijo; Haapala, Antti. 2019. Casein-magnesium composite as an intumescent fire retardant coating for wood Fire safety journal 2020; 112: 1-7. 2019

Väisänen, Taneli ; Kilpeläinen, Petri; Kitunen, Veikko; Lappalainen, Reijo; Tomppo, Laura. 2019. Effect of steam treatment on the chemical composition of hemp (Cannabis sativa L.) and identification of the extracted carbohydrates and other compounds Industrial crops and products 131: 224-233. 2019

Ahlholm, P; Sipilä, K; Vallittu, P; Kotiranta, U; Lappalainen, R. 2019. Accuracy of inlay and onlay restorations based on 3D printing or milling technique - a pilot study European journal of prosthodontics and restorative dentistry 27 2: 56-64. 2019

Barbero-López, Aitor; Chibily, Soumaya; Tomppo, Laura; Salami, Ayobami; Ancin-Murguzur, Francisco Javier; Venäläinen, Martti; Lappalainen, Reijo; Haapala, Antti. 2018. Pyrolysis distillates from tree bark and fibre hemp inhibit the growth of wood-decaying fungi Industrial Crops and Products 2019; 129: 604-610. 2018

Emran, Shekh; Lappalainen, Reijo; Kullaa, Arja M; Myllymaa, Sami. 2018. Concentric Ring Probe for Bioimpedance Spectroscopic Measurements: Design and Ex Vivo Feasibility Testing on Pork Oral Tissues Sensors 18 10: 3378. 2018

Korhonen, Hannu; Koistinen, Arto; Lappalainen, Reijo. 2018. Improvements in the thread cutting torque for a 6082-T6 aluminum-based alloy with tapping tools utilizing diamond coating Machining Science and Technology 22 4: 696-728. 2018

Mikkonen, Jopi JW; Singh, Surya P; Akhi, Ramin; Salo, Tuula; Lappalainen, Reijo; González-Arriagada, Wilfredo A; Ajudarte Lopes, Márcio; Kullaa, Arja M; Myllymaa, Sami. 2018. Potential role of nuclear magnetic resonance spectroscopy to identify salivary metabolite alterations in patients with head and neck cancer Oncology letters 16 5: 6795-6800. 2018

Tomppo, Laura; Tiitta, Markku; Lappalainen, Reijo. 2018. The effect of moisture content on electrical impedance spectroscopy response of natural fibre-polymer composite granules Journal of thermoplastic composite materials 2019; 32 2: 216-2271-12. 2018

Miettinen T, Myllymaa K, Westeren-Punnonen S, Ahlberg J, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. Success Rate and Technical Quality of Home Polysomnography with Self-Applicable Electrode Set in Subjects with Possible Sleep Bruxism IEEE journal of biomedical and health informatics 120; 22 4: 1124-1132. 2017

Väisänen Taneli, Batello Paolo, Lappalainen Reijo, Tomppo Laura. 2017. Modification of hemp fibers (Cannabis Sativa L.) for composite applications. Industrial Crops and Products 2018; 111: 422-429. 2017

Miettinen T, Myllymaa K, Westeren-Punnonen S, Ahlberg J, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. At-home quantification of sleep characteristics with self-applicable facial electrode set. SLEEP MEDICINE 40 Supplement 1: e233-e234. 2017

Korhonen Hannu, Syväluoto Aki, Leskinen Jari TT, Lappalainen Reijo. 2017. Optically transparent and durable Al2O3 coatings for harsh environments by ultra short pulsed laser deposition. Optics and Laser Technology 2018; 98: 373-384. 2017

Miettinen T, Myllymaa K, Muraja-Murro A, Westeren-Punnonen S, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. 2017. Screen-printed ambulatory electrode set enables accurate diagnostics of sleep bruxism. Journal of Sleep Research 2018; 27 1: 103-112. 2017

Väisänen T, Laitinen K, Tomppo L, Joutsensaari J, Raatikainen O, Lappalainen R, Yli-Pirilä P. 2016. A rapid technique for monitoring volatile organic compound emissions from wood-plastic composites. INDOOR AND BUILT ENVIRONMENT 2018; 27 2: 194-204. 2016

Väisänen Taneli, Heikkinen Jorma, Tomppo Laura, Lappalainen Reijo. 2016. Softwood Distillate as a Bio-Based Additive in Wood-Plastic Composites. Journal of Wood Chemistry and Technology 36 4: 278-287. 2016

Väisänen Taneli, Heikkinen Jorma, Tomppo Laura, Lappalainen Reijo. 2016. Improving the properties of wood-plastic composite through addition of hardwood pyrolysis liquid. Journal of Thermoplastic Composite Materials [epub ahead of print Feb 23, 2016]: -. 2016

Väisänen Taneli, Haapala Antti, Lappalainen Reijo, Tomppo Laura. 2016. Utilization of agricultural and forest industry waste and residues in natural fiber-polymer composites: A review. Waste Management 54: 62-73. 2016

Tiitta M, Tomppo L, Möttönen V, Marttila J, Antikainen J, Lappalainen R, Heräjärvi H. 2016. Predicting the bending properties of air dried and modified Populus tremula L. wood using combined air-coupled ultrasound and electrical impedance spectroscopy. European Journal of Wood and Wood Products 2017; 75 5: 701-709. 2016

Qu Chengjuan, Kaitainen Salla, Kröger Heikki, Lappalainen Reijo, Lammi Mikko J. 2016. Behavior of Human Bone Marrow-Derived Mesenchymal Stem Cells on Various Titanium-Based Coatings. Materials 9 10: 827. 2016

Myllymaa Sami, Muraja-Murro Anu, Westeren-Punnonen Susanna, Hukkanen Taina, Lappalainen Reijo, Mervaala Esa, Töyräs Juha, Sipilä Kirsi, Myllymaa Katja. 2016. Assessment of the suitability of using a forehead EEG electrode set and chin EMG electrodes for sleep staging in polysomnography. Journal of Sleep Research [Epub ahead of print 27 May 2016]: 1-10. 2016

Mikkonen Jopi JW, Raittila Jussi, Rieppo Lassi, Lappalainen Reijo, Kullaa Arja M, Myllymaa Sami. 2016. Fourier transform infrared spectroscopy and photoacoustic spectroscopy for saliva analysis. APPLIED SPECTROSCOPY 70 9: 1502-1510. 2016

Laitinen Kimmo T, Korhonen Hannu, Leskinen Jari TT, Koistinen Arto, Lappalainen Reijo. 2016. Improved multilayer coatings by combined use of electrochemical and ultra-short pulsed laser deposition techniques. SURFACE & COATINGS TECHNOLOGY 300: 58-66. 2016

Juvonen Tiina, Nuutinen Juha-Pekka, Koistinen Arto P, Kröger Heikki, Lappalainen Reijo. 2015. Biomechanical evaluation of bone screw fixation with a novel bone cement. BIOMEDICAL ENGINEERING ONLINE 14: 74. 2015

Lepola Pasi, Myllymaa Sami, Töyräs Juha, Hukkanen Taina, Mervaala Esa, Määttä Sara, Lappalainen Reijo Myllymaa Katja. 2015. A Handy EEG Electrode Set for patients suffering from altered mental state. JOURNAL OF CLINICAL MONITORING AND COMPUTING 29 6: 697-705. 2015

Mikkonen JJW, Singh SP, Herrala M, Lappalainen R, Myllymaa S, Kullaa AM. 2015. Salivary metabolomics in the diagnosis of oral cancer and periodontal diseases. JOURNAL OF PERIODONTAL RESEARCH (COPENHAGEN) 2016; 51 4: 431-437. 2015

Väisänen Taneli, Tomppo Laura, Selenius Mikko, Lappalainen Reijo. 2015. Effects of slow pyrolysis derived birch distillate on the properties of wood-plastic composites. European Journal of Wood and Wood Products 74 1: 131-133. 2015

Tomppo Laura, Tiitta Markku, Lappalainen Reijo. 2014. Air-coupled ultrasound and electrical impedance analyses of normally dried and thermally modified Scots pine (Pinus sylvestris). Wood Material Science and Engineering 2016; 11 5: 274-282. 2014

Lepola Pasi, Myllymaa Sami, Töyräs Juha, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2014. Shielded design of screen-printed EEG electrode set reduces interference pick-up. IEEE SENSORS JOURNAL 14 8: 2692-2697. 2014

Lepola Pasi, Myllymaa Sami, Töyräs Juha, Muraja-Murro Anu, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2014. Screen-printed EEG electrode set for emergency use. SENSORS AND ACTUATORS A. PHYSICAL 213 July: 19-26. 2014

Koistinen Arto P, Korhonen Hannu, Kröger Heikki, Lappalainen Reijo. 2014. Interfacial sliding properties of bone screw materials and their effect on screw fixation strength. Journal of Applied Biomaterials & Functional Materials 12 2: 90-96. 2014

Lappalainen R, Mervaala E, Myllymaa K, Myllymaa S, Töyräs J. 2014. Arrangement and method for carrying out electrode measurements. WO 2014072582 A1. 2014

Laitinen Kimmo T., Miettinen Juha M., Vauhkonen Marko, Lappalainen Reijo. 2014. Development of novel electroplating tank layout by computer simulations and verification tests. Transactions of the IMF 92 5: 238-244. 2014

Kawaji H, Koistinen AP, Korhonen RK, Lappalainen R, Lohman M, Soininen A, Gomez-Barrena E, Konttinen YT, Ylinen P, Talloroth K. 2014. Back-side wear in HexLoc cups clinico-radiological, immunohistopathological, finite element and retrieval analysis studies. Journal of Long-Term Effects of Medical Implants 24 4: 319-331. 2014

Kaitainen S, Mähönen AJ, Lappalainen R, Kröger H, Lammi MJ, Qu C. 2013. TiO2 coating promotes mesenchymal stem cell proliferation without the loss of their capacity for chondrogenic differentiation. Biofabrication 5 2: 025009. 2013

Korhonen H, Laakkonen J, Hakala J, Lappalainen R. 2013. IMPROVEMENTS IN THE SURFACE CHARACTERISTICS OF STAINLESS STEEL WORKPIECES BY BURNISHING WITH AN AMORPHOUS DIAMOND-COATED TIP. Machining Science and Technology 17 4: 593-610. 2013

Laitinen KT, Korhonen H, Nuutinen P, Miettinen J, Lappalainen R. 2013. Improved multilayer coatings by combined use of electrochemical and ultra-short pulsed laser deposition techniques. Teoksessa: - (toim.), National Association for Surface Finishing Annual Conference and Trade Show (SUR/FIN 2013). National Association for Surface Finishing (NASF). s. 864-873. 2013

Mikkonen Jopi JW, Herrala Maria, Soininen Pasi, Lappalainen Reijo, Tjäderhane Leo, Seitsalo Hubertus, Niemelä Raija, Salo Tuula, Kullaa Arja M, Myllymaa Sami. 2013. Metabolic Profiling of Saliva in Patients with Primary Sjögren's syndrome. Metabolomics: Open Access 3 3: 128. 2013

Myllymaa S, Lepola P, Hukkanen T, Oun A, Mervaala E, Toyras J, Lappalainen R, Myllymaa K. 2013. Novel screen printed electrode set for routine EEG recordings in patients with altered mental status: -, Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE. Engineering in Medicine and Biology Society Proceedings. 6724-6727. 2013

Myllymaa Sami, Lepola Pasi, Töyräs Juha, Hukkanen Taina, Mervaala Esa, Lappalainen Reijo, Myllymaa Katja. 2013. New disposable forehead electrode set with excellent signal quality and imaging compatibility. JOURNAL OF NEUROSCIENCE METHODS 215 1: 103-109. 2013

Qu CJ, Myllymaa S, Prittinen J, Koistinen AP, Lappalainen R, Lammi MJ. 2013. Osteoblast behavior on various ultra short pulsed laser deposited surface coatings. MATERIALS SCIENCE AND ENGINEERING C 33 3: 1676-1682. 2013

Kaitainen Salla, Kutvonen Antti, Suvanto Mika, Pakkanen Tuula T, Lappalainen Reijo, Myllymaa Sami. 2013. Liquid silicone rubber (LSR)-based dry bioelectrodes: The effect of surface micropillar structuring and silver coating on contact impedance. SENSORS AND ACTUATORS A. PHYSICAL 206: 22-29. 2013

Myllymaa Katja, Levon Jaakko, Tiainen Veli-Matti, Myllymaa Sami, Soininen Antti, Korhonen Hannu, Kaivosoja Emilia, Lappalainen Reijo, Konttinen Yrjö Tapio. 2012. Formation and retention of staphylococcal biofilms on DLC and its hybrids compared to metals used as biomaterials. COLLOIDS AND SURFACES B: BIOINTERFACES 101: 290-297. 2012

Myllymaa, S; Pirinen, S; Myllymaa, K; Suvanto, M; Pakkanen, TA; Pakkanen TT; Lappalainen R. 2012. Improving electrochemical performance of flexible thin film electrodes with micropillar array structures. MEASUREMENT SCIENCE AND TECHNOLOGY 23: 125701. 2012

Kaivosoja E, Virtanen S, Rautemaa R, Lappalainen R, Konttinen YT. 2012. Spectroscopy in the analysis of bacterial and eukaryotic cell footprints on implant surfaces. EUROPEAN CELLS AND MATERIALS 24: 60-73. 2012

Järvinen Kristiina, Jokiniemi Jorma, Lammi Mikko, Lappalainen Reijo, Närvänen Ale, Pakkanen Tapani A, Lehto Vesa-Pekka. 2012. Nanoteknologia biomateriaalien ja lääkkeiden kantaja-aineiden pintojen räätälöinnissä. DUODECIM 128: 2085-2092. 2012

Juvonen T, Koistinen A, Kröger H, Lappalainen R. 2012. Enhanced bone screw fixation with biodegradable bone cement in osteoporotic bone model. Journal of Applied Biomaterials & Functional Materials 10 2: 113-118. 2012

Lammi MJ, Qu CJ, Prittinen J, Kröger H, Koistinen A, Myllymaa S, Lappalainen R. 2012. Adhesion and spreading of different skeletal cell types on variable surface coatings: IEEE Xplore Digital Library, Biomedical Engineering and Informatics (BMEI), 2012 5th International Conference on. 705 - 710. 2012

A. Soininen, J. Levon, M. Katsikogianni, K. Myllymaa, R. Lappalainen, Y. T. Konttinen, T J. Kinnari, V-M Tiainen, Y Missirlis. 2011. In vitro adhesion of staphylococci to diamond-like carbon polymer hybrids under dynamic flow conditions JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 22: 629-636. 2011

E. Kaivosoja, S. Myllymaa, Y, Takakubo, H. Korhonen, Y.T. Konttinen, R. Lappalainen, M. Takagi. 2011. Osteogenesis of human mesenchymal stem cells on micro-patterned surfaces Journal of Biomaterials Applications doi:10.1177/0885328211428094 0885328211428094: 1-11. 2011

Electrical impedance spectroscopy and acoustic emission methods for analyses of forest residuals and wood chips. Tiitta, Markku; Tomppo, Laura; Lappalainen, Reijo / Proceedings of the 9th international conference on electromagnetic wave interaction with water and moist substances. 2011. 2011

Jaatinen JJ, Korhonen RK, Pelttari A, Helminen HJ, Korhonen H, Lappalainen R, Kröger H. 2011. Early bone growth on the surface of titanium implants in rat femur is enhanced by an amorphous diamond coating ACTA ORTHOPAEDICA 82: 499-503. 2011

Koistinen, Arto P; Korhonen, H; Kiviranta, Ilkka; Kröger, Heikki, Lappalainen, Reijo. 2011. Analysis of plastic deformation in cortical bone after insertion of coated and non-coated self-tapping orthopaedic screws. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERING. PART H. JOURNAL OF ENGINEERING IN MEDICINE 225 7: 629-639. 2011

Pöllänen R, Tikkanen A-M, Lammi MJ, Lappalainen R. 2011. The effect of loading and material on the biomechanical properties and vitality of bovine cartilage in vitro Journal of Applied Biomaterials & Biomechanics 9 1: 47 - 53. 2011

Tomppo Laura, Tiitta Markku, Laakso Tapio, Harju Anni, Venäläinen Martti, Lappalainen Reijo. 2011. Study of stilbene and resin acid content of Scots pine heartwood by electrical impedance spectroscopy (EIS) HOLZFORSCHUNG 65 5: 643-649. 2011

van der Beek Jelle, Tiitta Markku, Tomppo Laura, Lappalainen Reijo. 2011. Moisture content determination of thermally modified timber by electrical and ultrasound methods International Wood Products Journal 2 2: 60-66. 2011

Levon J, Myllymaa K, Kouri V-P, Rautemaa R, Kinnari T, Myllymaa S, Konttinen YT, Lappalainen R. 2010. Patterned macro-array plates in comparison of tantalum, titanium and chromium to diamond-like carbon for their bacterial adhesion resistance. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH. PART A 92: 1606-1613. 2010

Myllymaa S, Myllymaa K, Korhonen H, Lammi MJ, Tiitu V & Reijo Lappalainen. 2010. Surface characterization and in vitro biocompatibility assessment of photosensitive polyimide films COLLOIDS AND SURFACES B: BIOINTERFACES 76 2: 505-511. 2010

Myllymaa S, Kaivosoja E, Myllymaa K, Sillat T, Korhonen H, Lappalainen R, Konttinen YT. 2010. Adhesion, spreading and osteogenic differentiation of mesenchymal stem cells cultured on micropatterned amorphous diamond, titanium, tantalum and chromium coatings on silicon. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 21 1: 329-341. 2010

M. Tiitta, L. Tomppo, R. Lappalainen. 2010. Combined acoustic and electric method for monitoring wood drying process: a review. Wood Material Science and Engineering DOI:10.1080/17480272.2010.483289: 78-83. 2010

Leskinen J, Okkonen M, Toiviainen M, Poutiainen S, Tenhunen M, Teppola P, Lappalainen R, Ketolainen J, Järvinen K.. 2010. Labscale fluidized bed granulator instrumented with non-invasive process monitoring devices. CHEMICAL ENGINEERING JOURNAL 164 2-3: 268-274. 2010

Leskinen Jari, Hakulinen Mikko Antero, Kuosmanen Marko, Ketolainen Jarkko, Abrahmsén-Alami Susanna, Lappalainen Reijo. 2010. Monitoring of swelling of hydrophilic polymer matrix tablets by ultrasound techniques. INTERNATIONAL JOURNAL OF PHARMACEUTICS 404 1-2: 142-147. 2010

Kaivosoja E, Myllymaa S, Kouri V-P, Myllymaa K, Lappalainen R, Konttinen YT. 2010. Enhancement of silicon using micropatterned surfaces of thin films EUROPEAN CELLS AND MATERIALS 19: 147-157. 2010

A. Calzado, L. Saldaña, H. Korhonen, A. Soininen, T. J. Kinnari, E. Gómez-Barrena, V-M Tiainen, R. Lappalainen, L. Munuera, Y. T. Konttinen, N. Vilaboa. 2010. Interactions of human bone cells with diamond-like carbon polymer hybrid coatings. ACTA BIOMATERIALIA 6(2010): 3325-3338. 2010

Koistinen A.P., Korhonen H., Kröger H. and Lappalainen R. 2010. Relationship between insertion properties of the screws, density of test blocks and tribological properties of orthopaedic screws. Teoksessa: - (toim.), Transactions of the 7th combined meeting of the orthopaedic research societies. ss. -. 2010

Tiitta M, Tomppo L, Järnström H, Löija M, Laakso T, Harju A, Venäläinen M, Iitti H, Paajanen L, Saranpää P, Lappalainen R, Viitanen H. 2009. Spectral and chemical analyses of mould development on Scots pine heartwood 67: 151-158. 2009

Väänänen P, Nurmi J, Lappalainen R, Jank S. 2009. Fixation properties of a biodegradable "free-form" osteosynthesis plate with screws with cut-off screw heads: biomechanical evaluation over 26 weeks. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY AND ENDODONTICS 107 4: 462-468. 2009

Tomppo L, Tiitta M, Lappalainen R. 2009. Ultrasound evaluation of lathe check depth in birch veneer 67: 27-35. 2009

Tomppo L, Tiitta M, Lappalainen R. 2009. Electromagnetic measurement of green and RH 65 % conditioned wood samples. Teoksessa: (toim.), 8th International Conference on Electromagnetic Wave Interaction with Water and Mois Substances, ISEMA-09//Proceedings//. ss. 295-300. 2009

Tomppo L, Tiitta M, Laakso T, Harju A, Venäläinen M, Lappalainen R. 2009. Dielectric spectroscopy of Scots pine WOOD SCIENCE AND TECHNOLOGY 43: 653-667. 2009

Tiitta M, Tomppo L, Lappalainen R. 2009. Electromagnetic and combined methods for wood material characterization, 8th International Conference on Electromagnetic Wave Interaction with Water and Mois Substances, ISEMA-09//Proceedings//. 118-123. 2009

Myllymaa S, Myllymaa K, Korhonen H, Töyräs J, Jääskeläinen JE, Djupsund K, Tanila H, Lappalainen R. 2009. Fabrication and testing of polyimide-based microelectrode arrays for cortical mapping of evoked potentials BIOSENSORS AND BIOELECTRONICS 24: 3067-3072. 2009

Myllymaa S, Myllymaa K, Lappalainen R. 2009. Flexible implantable thin film neural electrodes: Naik GR, Recent Advances in Biomedical Engineering.In-Teh. 165-189. 2009

Myllymaa K, Myllymaa S, Korhonen H, Lammi MJ, Tiitu V, Lappalainen R. 2009. Interactions between Saos-2 cells and microtextured amorphous diamond or amorphous diamond hybrid coated surfaces with different wettability properties. DIAMOND AND RELATED MATERIALS 18: 1294-1300. 2009

Myllymaa K, Myllymaa S, Korhonen H, Lammi MJ, Saarenpää H, Suvanto M, Pakkanen TA, Tiitu V, Lappalainen R. 2009. Improved adherence and spreading of Saos-2 cells on polypropylene surfaces achieved by surface texturing and carbon nitride coating. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 20: 2337-2347. 2009

Miettinen SSA, Jaatinen J, Pelttari A, Lappalainen R, Mönkkönen J, Venesmaa PK, Kröger HPJ. 2009. Effect of locally administered zoledronic acid on injury-induced intramembranous bone regeneration and osseointegration of a titanium implant in rats JOURNAL OF ORTHOPAEDIC SCIENCE 14 4: 431-436. 2009

Kaivosoja E, Myllymaa S, Myllymaa K, Sillat T, Lappalainen R, Konttinen YT. 2009. Mikrokuvioinnin vaikutus mesenkymaalisten kantasolujen adheesioon, levittäytymiseen ja luuksi. SUOMEN ORTOPEDIA JA TRAUMATOLOGIA 32: 328-336. 2009

Kaivosoja E, Myllymaa S, Kouri V-P, Myllymaa K, Lappalainen R, Konttinen YT. 2009. Piin soluyhteensopivuuden parantaminen mikrokuvioinnilla. SUOMEN ORTOPEDIA JA TRAUMATOLOGIA 32: 338-346. 2009

Myllymaa S, Myllymaa K, Korhonen H, Gureviciene I, Djupsund K, Tanila H, Lappalainen R. 2008. Development of flexible microelectrode arrays for recording cortical surface field potentials. Teoksessa (toim.), 30th Annual International IEEE EMBS Conference. Engineering in Medicine and Biology Society Proceedings. s. 3200-3203. 2008

Väänänen P, Koistinen A, Nurmi J, Lappalainen R. 2008. Biomechanical in vitro evaluation of the effect of cyclic loading on the postoperative fixation stability and degradation of a biodegradable ankle plate. JOURNAL OF ORTHOPAEDIC RESEARCH 26: 1485-1488. 2008

Leskinen J, Hakulinen A, Ketolainen J, Abrahamsen-Alami S, Kuosmanen M and Lappalainen R.. 2008. Dissolution monitoring of hydrophilic matrix tablets by using frequency information of ultrasound echo, Abstracts: 19th Helsinki Drug Research 2008. S26. 2008

Myllymaa S, Myllymaa K, Korhonen H, Djupsund K, Tanila H, Lappalainen R. 2008. Development of flexible thin film microelectrode arrays for neural recordings: Katashev A, Dekhtyar Y and Spigulis J, 14th Nordic-Baltic Conference on Biomedical Engineering and Medical Physics.Springer. IFMBE Proceedings. 286-289. 2008

Matero S, Poutiainen S, Leskinen J, Hakulinen M, Lahtela-Kakkonen M, Ketolainen J, Lappalainen R, Järvinen K & Poso A. 2008. Determination of batch-to-batch variation for fluidized bed granulation, Eur J Pharm Sci Vol 34 (1 Suppl 1). Abstracts: 19th Helsinki Drug Research June 9-11. S31. 2008

Hakulinen MA, Pajander J, Leskinen J, Ketolainen J, van Veen B, Niinimäki K, Pirskanen K, Poso A, Lappalainen R. 2008. Ultrasound transmission technique as a potential tool for physical evaluation of monolithic matrix tablets. AAPS PHARMSCITECH [ONLINE: HTTP://WWW.AAPSPHARMSCITECH.ORG/] 9 1: 267-273. 2008

Sierpowska J, Lammi MJ, Hakulinen MA, Jurvelin JS, Lappalainen R, Töyräs J. 2007. Effect of human trabecular bone composition on its electrical properties MEDICAL ENGINEERING & PHYSICS 29 8: 845-852. 2007

Sierpowska J, Hakulinen MA, Töyräs J, Day JS, Weinans H, Kiviranta I, Jurvelin JS, Lappalainen R. 2006. Interrelationships between electrical proberties and microstructure of human trabecular bone. PHYSICS IN MEDICINE AND BIOLOGY 51: 5289-5303. 2006

Pajander J, van Veen B, Korhonen O, Lappalainen R, Ketolainen J. 2006. Liquid boundary movements in cylindrical and convex hydrophobic matrix tablets: effects on tablet cracking and drug release. EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS 64: 167-172. 2006

Matero S, Lahtela-Kakkonen M, Korhonen O, Ketolainen J, Lappalainen R, Poso A. 2006. Chemical space of orally active compounds. CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS 84: 134-141. 2006

Ma G-F, Liljeström M, Ainola M, Chen T, Tiainen V-M, Lappalainen R, Konttinen YT, Salo J. 2006. Expression of ADAM9 (meltrin-y) around aseptically loosened total hip replacement implants. RHEUMATOLOGY 45: 808-814. 2006

Korhonen RK, Julkunen P, Rieppo J, Lappalainen R, Konttinen YT, Jurvelin JS. 2006. Collagen network of articular cartilage modulates fluid flow and mechanical stresses in chondrocyte. BIOMECHANICS AND MODELING IN MECHANOBIOLOGY 5 2-3: 150-159. 2006

Konttinen YT, Ma J, Lappalainen R, Laine P, Kitti U, Santavirta S, Teronen O. 2006. Immunohistochemical evaluation of inflammatory mediators in failing implants. INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY 26 2: 135-141. 2006

Amberla T, Rekow M, Köngäs J, Asonen H, Salminen T, Viitanen N, Kulmala M, Vuoristo P, Pessa M, Lappalainen R. 2006. Pulsed laser deposition with a high average power fiber laser, SVC - 49th Annual Technical Conference Proceedings.Society of Vacuum Coaters. 79-82. 2006

Väänänen P., Koistinen A., Santavirta S.S., Lappalainen R.. 2005. Abduktiokulman vaikutus lonkkatekonivelen sementoidun UHMWPE-kupin toimivuuteen, Finnish Journal Orthopaedics and Traumatology 28(2). 168-173. 2005

Selenius M., Santavirta S.S., Lappalainen R.. 2005. Wear simulation of five most commonly used THR implants in Finland, Finnish Journal Orthopaedics and Traumatology 28(2). 156-160. 2005

Virtanen H., Huttunen J, Toropainen A., Lappalainen R.. 2005. Effect of superficial implants on absorption of electromagnetic field from a mobile phone PHYSICS IN MEDICINE AND BIOLOGY 50: 689-700. 2005

Virtanen H, Huttunen J, Toropainen A, Lappalainen R. 2005. Interaction of mobile phones with superficial passive metallic implants. PHYSICS IN MEDICINE AND BIOLOGY 50: 2689-2700. 2005

van Veen B , Pajander J, Zuurman K, Lappalainen R, Poso A, Frijlink HW, Ketolainen J. 2005. The effect of powder blend and tablet structure on drug release mechanisms of hydrophobic starch acetate matrix tablets. EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS 61: 149-157. 2005

Sierpowska J, Hakulinen MA, Töyräs J, Day JS, Weinans H, Jurvelin JS, Lappalainen R. 2005. Prediction of mechanical properties of human trabecular bone by electrical measurements. PHYSIOLOGICAL MEASUREMENT 26: S119-S131. 2005

Kawaji H., Koistinen A., Takagi M., Lappalainen R., Santavirta S.S.. 2005. Effect of surface condition of metallic pins simulating cemented femoral stem on subsidence in cyclic fatique testing, Finnish Journal Orthopaedics and Traumatology 28(2). 161-166. 2005

Lappalainen R.. 2005. Fundamentals and current knowledge of biomaterials in joint arthroplasty. Teoksessa: (toim.), 103th Annual Meeting of Tohoku Orthopaedics and Traumatology Association. ss. 2005

Lappalainen R.. 2005. Amorphous diamond coatings for biomedical application. 2005

Lappalainen R, Santavirta SS. 2005. Potential of coatings in total hip replacement. CLINICAL ORTHOPAEDICS AND RELATED RESEARCH 430: 72-79. 2005

Korhonen RK, Koistinen A, Konttinen YT, Santavirta SS, Lappalainen R. 2005. The effect of geometry and abduction angle on the stresses in cemented UHMWPE acetabular cups - finite element simulations and experimental tests. BIOMEDICAL ENGINEERING ONLINE 4 32. 2005

Koistinen A, Santavirta SS, Kröger H, Lappalainen R, Kröger H. 2005. Effect of bone mineral density and amourphous diamond coatings on insertion torque of bone screws. BIOMATERIALS 26: 5687-5694. 2005

Kawaiji H., Koistinen A., Ogino T., Takagi M., Santavirta S.S., Kobayashi S., Lappalainen R.. 2005. Effect of different surface conditions of cemented femoral stem-shaped metallic pins on subsidence in cyclic fatique testing, Tohoku Archives of Orthopaedic Surgery and Traumatology. 2005

Arif Mohammad, Blinov L, Lappalainen R, Filippov S.N. 2004. Preparation of powdered carbon nitride C3N4. GLASS PHYSICS AND CHEMISTRY 30 6: 573-575. 2004

Nissi MJ, Töyräs J, Laasanen MS, Rieppo J, Saarakkala S, Lappalainen R, Jurvelin JS, Nieminen MT. 2004. Proteoglycan and collagen sensitive MRI evaluation of normal and degenerated articular cartilage. JOURNAL OF ORTHOPAEDIC RESEARCH 22: 557-564. 2004

Saarakkala S, Töyräs J, Hirvonen J, Laasanen MS, Lappalainen R, Jurvelin JS. 2004. Ultrasonic quantitation of superficial degradation of articular cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 30 6: 783-792. 2004

Töyräs J, Laasanen MS, Saarakkala S, Lammi MJ, Rieppo J, Kurkijärvi J, Lappalainen R, Jurvelin JS. 2003. Speed of sound in normal and degenerated bovine articular cartilage. ULTRASOUND IN MEDICINE AND BIOLOGY 29 3: 447-454. 2003

Sierpowska J, Töyräs J, Hakulinen MA, Saarakkala S, Jurvelin JS, Lappalainen R. 2003. Electrical and dielectric properties of bovine trabecular bone - relationship with mechanical properties and mineral density. PHYSICS IN MEDICINE AND BIOLOGY 48: 775-786. 2003

Santavirta S, Böhler M, Harris WH, Konttinen YT, Lappalainen R, Muratoglu O, Rieker C, Salzer M. 2003. Alternative materials to improve total hip replacement tribology. ACTA ORTHOPAEDICA 74 4: 380-388. 2003

Saarakkala S, Laasanen MS, Jurvelin JS, Törrönen K, Lammi MJ, Lappalainen R, Töyräs J. 2003. Ultrasound indentation of normal and spontaneously degenerated bovine articular cartilage. OSTEOARTHRITIS AND CARTILAGE 11: 697-705. 2003

Lappalainen R, Selenius M, Anttila A, Konttinen YT, Santavirta SS. 2003. Reduction of wear in total hip replacement prostheses by amorphous diamond coatings. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH B. APPLIED BIOMATERIALS 66B 1: 410-413. 2003

Korhonen RK, Laasanen MS, Töyräs J, Lappalainen R, Helminen HJ, Jurvelin JS. 2003. Fibril reinforced poroelastic model predicts specifically mechanical behavior of normal, proteoglycan depleted and collagen degraded articular cartilage. JOURNAL OF BIOMECHANICS 36: 1373-1379. 2003

Koistinen A, Santavirta S, Lappalainen R. 2003. Apparatus to test insertion and removal torque of bone screws. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERING. PART H. JOURNAL OF ENGINEERING IN MEDICINE 217 6: 503-8. 2003

Kiuru M, Alakoski E, Tiainen VM, Lappalainen R, Anttila A. 2003. Tantalum as a buffer layer in diamond-like carbon coated artificial hip joints JOURNAL OF BIOMEDICAL MATERIALS RESEARCH B. APPLIED BIOMATERIALS 66B 1: 425-428. 2003

Tiainen V-M, Lappalainen R, Anttila A. 2002. Protection of industrial sensors with ta-C. VACUUM 67: 599-604. 2002

Vilhunen T, Heikkinen LM, Savolainen T, Vauhkonen PJ, Lappalainen R, Kaipio JP, Vauhkonen M. 2002. Detection of faults in resistive coatings with an impedance-tomography-related approach. MEASUREMENT SCIENCE AND TECHNOLOGY 13: 865-872. 2002

Clarke IC, Chan FW, Essner A, Good V, Kaddick C, Lappalainen R, Laurent M, McKellop H, McGarry W, Schroeder D, Selenius M, Shen MC, Ueno M, Wang A, Yao J. 2001. Multi-laboratory simulator studies on effects of serum proteins on PTFE cup wear. WEAR 250: 188-198. 2001

Konttinen YT, Takagi M, Mandelin J, Lassus J, Salo J, Ainola M, Li T-F, Virtanen I, Liljeström M, Sakai H, Kobayashi Y, Sorsa T, Lappalainen R, Demulder A, Santavirta S. 2001. Acid attact and cathepsin K in bone resorption around total hip replacement prosthesis JOURNAL OF BONE AND MINERAL RESEARCH 16 10: 1780-1786. 2001

Törmälä P, Santavirta S, Rokkanen P, Könönen M, Kivilahti J, Anttila A, Lappalainen R, Tulamo R-M, Nevalainen J, Konttinen YT. 2000. Ortopediassa käytettäville biomateriaaleille asetettavat vaatimukset. SUOMEN LÄÄKÄRILEHTI 55 21: 2307-2311. 2000

Waris V, Waris P, Santavirta S, Waris E, Nevalainen J, Lassus J, Lappalainen R, Anttila A, Konttinen YT. 2000. Biomateriaalien käyttö lonkan tekonivelissä - komponenttien materiaalit: osa 1. SUOMEN LÄÄKÄRILEHTI 55 21: 2313-2322. 2000

Waris V, Waris P, Santavirta S, Waris E, Nevalainen J, Salo J, Lappalainen R, Anttila A, Konttinen YT. 2000. Biomateriaalien käyttö lonkan tekonivelissä - komponenttien kiinnitysmateriaalit: osa 2. SUOMEN LÄÄKÄRILEHTI 55 22: 2435-2440. 2000

Anttila A, Lappalainen R, Heinonen H, Santavirta S, Konttinen YT. 1999. Superiority of diamondlike carbon coating on articulating surfaces of artificial hip joints. NEW DIAMOND AND FRONTIER CARBON TECHNOLOGY 9 4: 283-288. 1999

Santavirta SS, Lappalainen R, Pekko P, Anttila A, Konttinen YT. 1999. The counterface, surface smoothness, tolerances, and coatings in total joint prostheses. CLINICAL ORTHOPAEDICS AND RELATED RESEARCH 369: 92-102. 1999

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