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James Kirkpatrick

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James Kirkpatrick

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Sugar-based collagen membrane cross-linking increases barrier capacity of membranes

Clin. Oral Invest.,  (2017)
Po-ju Chia-LaiAnna OrlowskaSarah Al-MaawiAndre DiasYunxin ZhangXuejiu WangNiklas ZenderRobert SaderC. James KirkpatrickShahram Ghanaati
This study examines the permeability and barrier capacity of a sugar cross-linked resorbable collagen membrane ex vivo and in vivo. In an ex vivo study, injectable platelet-rich fibrin (i-PRF), a peripheral blood-derived human leukocyte-and-platelet-rich plasma was used to analyze membrane permeability. […]

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Reduction of the relative centrifugal force influences cell number and growth factor release within injectable PRF-based matrices

J Mater Sci: Mater Med, 28, 188 (2017)
Simon Wend, Alica Kubesch, Anna Orlowska, Sarah Al-Maawi, Niklas Zender, Andre Dias, Richard J. Miron, Robert Sader, Patrick Booms, C. James Kirkpatrick, Joseph Choukroun, Shahram Ghanaati
Platelet rich fibrin (PRF) is a blood concentrate system obtained by centrifugation of peripheral blood. First PRF matrices exhibited solid fibrin scaffold, more recently […]

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In vivo cellular reactions to different biomaterials—Physiological and pathological aspects and their consequences

Seminars in Immunology, DOI: 10.1016/j.smim.2017.06.001 (2017).
Sarah Al-Maawi, Anna Orlowska, Robert Sader, C. James Kirkpatrick, Shahram Ghanaati
Biomaterials are widely used in guided bone regeneration (GBR) and guided tissue regeneration (GTR). After application, there is an interaction between the host immune system and the implanted biomaterial, leading to a biomaterial-specific cellular reaction. The present review focuses on […]

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“Race for the surface”: eukaryotic cells can win

ACS Appl. Mater. Interfaces: 8(34) 22025-22031 (2016)
Vy T. H. Pham, Vi Khanh Truong, Anna Orlowska, Shahram Ghanaati, Mike Barbeck, Patrick Booms, Alex James Fulcher, Chris M. Bhadra, Ricardas Buividas, Vladimir A Baulin, Charles James Kirkpatrick, Pauline Doran, David E. Mainwaring, Saulius Juodkazis, Russell J Crawford, and Elena P. Ivanova

With an aging population and the consequent […]

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Andre Dias

Toxicity of nano-objects on human cells models

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Size- and coating-dependent uptake of polymer-coated gold nanoparticles in primary human dermal microvascular endothelial cells

Christian Freese, Matthew I. Gibso, Harm-Anton Klok, Ronald E. Unger, C. James Kirkpatrick

Biomacromolecules, 13 (5), pp 1533–1543 (2012)

A library-orientated approach is used to gain understanding of the interactions of well-defined nanoparticles with primary human endothelial cells, which are a key component of the vasculature. Fifteen sequentially modified gold nanoparticles (AuNPs) based on three different core […]

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Interactions of silica nanoparticles with lung epithelial cells and the association to flotillins

Jennifer Kasper, Maria I. Hermanns, Christoph Bantz, Olga Koshkina, Thomas Lang, Michael Maskos, Christine Pohl, Ronald E. Unger, C. James Kirkpatrick

Arch. Toxicol., 6 (2012)

Amorphous silica nanoparticles (aSNPs) gain increasing popularity for industrial and therapeutic claims. The lung with its surface area of 100–140 m2 displays an ideal target for therapeutic approaches, but it represents also […]

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Uptake and cytotoxicity of citrate-coated gold nanospheres: Comparative studies on human endothelial and epithelial cells

Christian Freese, Chiara Uboldi, Matthew I Gibson, Ronald E Unger, Babette B Weksler, Ignacio A Romero, Pierre-Olivier Couraud, C J Kirkpatrick

Part Fibre Toxicol., 9, 23 (2012)

BACKGROUND:
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs […]

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