Gold nanoparticle-mediated delivery of molecules into primary human gingival fibroblasts using ns-laser pulses: A pilot study

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Krawinkel, J.; Torres-Mapa, Maria Leilani.; Werelius, K.; Heisterkamp, Alexander; Rüttermann, S. et al.: Gold nanoparticle-mediated delivery of molecules into primary human gingival fibroblasts using ns-laser pulses: A pilot study. In: Materials 9 (2016), Nr. 5, 397. DOI: http://dx.doi.org/10.3390/ma9050397

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Abstract: 
Interaction of gold nanoparticles (AuNPs) in the vicinity of cells' membrane with a pulsed laser (λ = 532 nm, τ = 1 ns) leads to perforation of the cell membrane, thereby allowing extracellular molecules to diffuse into the cell. The objective of this study was to develop an experimental setting to deliver molecules into primary human gingival fibroblasts (pHFIB-G) by using ns-laser pulses interacting with AuNPs (study group). To compare the parameters required for manipulation of pHFIB-G with those needed for cell lines, a canine pleomorphic adenoma cell line (ZMTH3) was used (control group). Non-laser-treated cells incubated with AuNPs and the delivery molecules served as negative control. Laser irradiation (up to 35 mJ/cm2) resulted in a significant proportion of manipulated fibroblasts (up to 85%, compared to non-irradiated cells: p < 0.05), while cell viability (97%) was not reduced significantly. pHFIB-G were perforated as efficiently as ZMTH3. No significant decrease of metabolic cell activity was observed up to 72 h after laser treatment. The fibroblasts took up dextrans with molecular weights up to 500 kDa. Interaction of AuNPs and a pulsed laser beam yields a spatially selective technique for manipulation of even primary cells such as pHFIB-G in high throughput. © 2016 by the authors.
License of this version: CC BY-NC-SA 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 226 80.43%
2 image of flag of United States United States 25 8.90%
3 image of flag of China China 12 4.27%
4 image of flag of Indonesia Indonesia 3 1.07%
5 image of flag of Russian Federation Russian Federation 2 0.71%
6 image of flag of Mexico Mexico 2 0.71%
7 image of flag of Canada Canada 2 0.71%
8 image of flag of Argentina Argentina 2 0.71%
9 image of flag of India India 1 0.36%
10 image of flag of Israel Israel 1 0.36%
    other countries 5 1.78%

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