• Cellular uptake and intracellular degradation of poly(alkyl cyanoacrylate) nanoparticles 

      Sulheim, Einar*; Baghirov, Habib*; von Haartman, Eva; Bøe, Andreas; Åslund, Andreas; Mørch, Ýrr Asbjørg; Davies, Catharina de Lange (Journal article; Peer reviewed, 2016)
      Background Poly(alkyl cyanoacrylate) (PACA) nanoparticles have shown promise as drug carriers both to solid tumors and across the blood–brain barrier. Efficient drug delivery requires both high cellular uptake of the ...
    • Contact-mediated intracellular delivery of hydrophobic drugs from polymeric nanoparticles 

      Snipstad, Sofie; Westrøm, Sara; Mørch, Ýrr Asbjørg; Afadzi, Mercy; Åslund, Andreas; Davies, Catharina De Lange (Journal article; Peer reviewed, 2014)
      Encapsulation of drugs in nanoparticles can enhance the accumulation of drugs in tumours, reduce toxicity toward healthy tissue, and improve pharmacokinetics compared to administration of free drug. To achieve efficient ...
    • Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox. 

      Åslund, Andreas; Bassett, David; Ucar, Seniz; Sikorski, Pawel; Andreassen, Jens-Petter; Mandaric, Stefan; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard (Journal article; Peer reviewed, 2016)
      Due to their large water content and structural similarities to the extracellular matrix, hydrogels are an attractive class of material in the tissue engineering field. Polymers capable of ionotropic gelation are of special ...
    • Labeling nanoparticles: Dye leakage and altered cellular uptake 

      Snipstad, Sofie; Hak, Sjoerd; Baghirov, Habib; Sulheim, Einar; Mørch, Ýrr Asbjørg; Lelu, Sylvie; von Haartman, Eva; Bäck, Marcus; Nilsson, Peter R; Klymchenko, Andrey S; Davies, Ruth Catharina de Lange; Åslund, Andreas (Journal article, 2016)
      In vitro and in vivo behavior of nanoparticles (NPs) is often studied by tracing the NPs with fluorescent dyes. This requires stable incorporation of dyes within the NPs, as dye leakage may give a wrong interpretation of ...
    • Nanoparticle delivery to the brain - By focused ultrasound and self-assembled nanoparticle-stabilized microbubbles 

      Åslund, Andreas; Berg, Sigrid; Hak, Sjoerd; Mørch, Ýrr Asbjørg; Torp, Sverre Helge; Sandvig, Axel; Widerøe, Marius; Hansen, Rune; Davies, Ruth Catharina de Lange (Journal article, 2015)
      The blood–brain barrier (BBB) constitutes a significant obstacle for the delivery of drugs into the central nervous system (CNS). Nanoparticles have been able to partly overcome this obstacle and can thus improve drug ...
    • Nanoparticle-stabilized microbubbles for multimodal imaging and drug delivery 

      Mørch, Ýrr Asbjørg; Hansen, Rune; Berg, Sigrid; Åslund, Andreas; Glomm, Wilhelm; Eggen, Siv; Schmid, Ruth; Johnsen, Heidi; Kubowicz, Stephan; Snipstad, Sofie; Sulheim, Einar; Hak, Sjoerd; Singh, Gurvinder; McDonagh, Birgitte Hjelmeland; Blom, Hans; Davies, Ruth Catharina de Lange; Stenstad, Per Martin (Journal article, 2015)
      Microbubbles (MBs) are routinely used as contrast agents for ultrasound imaging. The use of ultrasound in combination with MBs has also attracted attention as a method to enhance drug delivery. We have developed a technology ...
    • Primary Porcine Brain Endothelial Cells as In Vitro Model to Study Effects of Ultrasound and Microbubbles on Blood-Brain Barrier Function 

      Lelu, Sylvie; Afadzi, Mercy; Berg, Sigrid; Åslund, Andreas; Torp, Sverre Helge; Sattler, Wolfgang; Davies, Ruth Catharina de Lange (Journal article; Peer reviewed, 2017)
      Focused ultrasound in the presence of microbubbles transiently and reversibly opens the blood-brain barrier (BBB) in rodents and humans thereby providing a time window for increased drug delivery into brain tissue. To get ...
    • Quantification and Qualitative Effects of Different PEGylations on Poly(butyl cyanoacrylate) Nanoparticles 

      Åslund, Andreas; Sulheim, Einar; Snipstad, Sofie; von Haartman, Eva; Baghirov, Habib; Starr, Nichola; Løvmo, Mia Kvåle; Lelu, Sylvie; Scurr, David; Davies, Catharina De Lange; Schmid, Ruth; Mørch, Yrr Asbjørg (Journal article, 2017)
      Protein adsorption on nanoparticles (NPs) used in nanomedicine leads to opsonization and activation of the complement system in blood, which substantially reduces the blood circulation time of NPs. The most commonly used ...
    • The effect of poly(ethylene glycol) coating and monomer type on poly(alkyl cyanoacrylate) nanoparticle interactions with lipid monolayers and cells 

      Baghirov, Habib; Melikishvili, Sopio; Mørch, Yrr Asbjørg; Sulheim, Einar; Åslund, Andreas; Hianik, Tibor; Davies, Ruth Catharina de Lange (Journal article, 2017)
      The interaction of the promising drug carriers poly(alkyl cyanoacrylate) nanoparticles (PACA NPs) with lipid monolayers modeling the cell membrane and with RBE4 immortalized rat brain endothelial cells was compared to ...
    • The Effect of Sonication on Extravasation and Distribution of Nanoparticles and Dextrans in Tumor Tissue Imaged by Multiphoton Microscopy 

      Yemane, Petros Tesfamichael; Åslund, Andreas; Sæterbø, Kristin Grendstad; Bjørkøy, Astrid; Snipstad, Sofie; van Wamel, Annemieke; Berg, Sigrid; Mørch, Ýrr Asbjørg; Hansen, Rune; Angelsen, Bjørn Atle Johan; Davies, Catharina de Lange (Journal article; Peer reviewed, 2018)
      Ultrasound (US)and systemic administration of microbubbles (MBs)have been shown to improve the delivery of drugs and nanoparticles (NPs)to tumor tissue. A better understanding of the mechanisms is crucial for effective ...
    • Ultrasound-mediated delivery and distribution of polymeric nanoparticles in the normal brain parenchyma of a metastatic brain tumour model 

      Baghirov, Habib; Snipstad, Sofie; Sulheim, Einar; Berg, Sigrid; Hansen, Rune; Thorsen, Frits; Mørch, Ýrr Asbjørg; Davies, Catharina de Lange; Åslund, Andreas (Journal article; Peer reviewed, 2018)
      The treatment of brain diseases is hindered by the blood-brain barrier (BBB) preventing most drugs from entering the brain. Focused ultrasound (FUS) with microbubbles can open the BBB safely and reversibly. Systemic drug ...