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Auflistung nach Schlagwort "Gold"

Anzeige der Dokumente 1-16 von 16

Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction

Machida, Manan; Shen, Weilu; Onoe, Hiroaki; Hiruta, Yuki; Heisterkamp, Alexander; Mazur, Eric; Terakawa, Mitsuhiro (Washington, DC : OSA - The Optical Society, 2021)

The fabrication of accentuated gold microstructures is demonstrated by multi-photon photoreduction inside an anionic fluorophore-containing hydrogel. We attempted to facilitate gold-ion photoreduction near the focal point ...
Beiträge zur präzisen Bestimmung von Os-Isotopenverhältnissen

Krüger, Michael (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2014)

[no abstract]
Comparison of modelled and measured tilted solar irradiance for photovoltaic applications

Mubarak, Riyad; Hofmann, Martin; Riechelmann, Stefan; Seckmeyer, Gunther (Basel : MDPI AG, 2017)

This work assesses the performance of five transposition models that estimate the global and diffuse solar irradiance on tilted planes based on the global horizontal irradiance. The modelled tilted irradiance values are ...
Comparison of nanoparticle-mediated transfection methods for DNA expression plasmids: Efficiency and cytotoxicity

Durán, Maria Carolina; Willenbrock, Saskia; Barchanski, Annette; Müller, Jessika-M.V.; Maiolini, Arianna; Soller, Jan T.; Barcikowski, Stephan; Nolte, Ingo; Feige, Karsten; Murua Escobar, Hugo (London : Biomed Central, 2011)

Background: Reproducibly high transfection rates with low methodology-induced cytotoxic side effects are essential to attain the required effect on targeted cells when exogenous DNA is transfected. Different approaches and ...
"Enabling Technologien" in der organischen Synthese : induktives Heizen und Durchflussreaktionen ; Totalsynthese von Millingtonine A

Wegner, Jens (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2012)

[no abstract]
Gold Nanoparticle Mediated Laser Transfection for Efficient siRNA Mediated Gene Knock Down

Heinemann, Dag; Schomaker, Markus; Kalies, Stefan; Schieck, Maximilian; Carlson, Regina; Murua Escobar, Hugo; Ripken, Tammo; Meyer, Heiko; Heisterkamp, Alexander (San Francisco, California, US : PLOS, 2013)

Laser based transfection methods have proven to be an efficient and gentle alternative to established molecule delivery methods like lipofection or electroporation. Among the laser based methods, gold nanoparticle mediated ...
Gold nanoparticle-mediated laser stimulation causes a complex stress signal in neuronal cells

Johannsmeier, Sonja; Heeger, Patrick; Terakawa, Mitsuhiro; Kalies, Stefan; Heisterkamp, Alexander; Ripken, Tammo; Heinemann, Dag (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)

Gold nanoparticle mediated laser stimulation of neuronal cells allows for cell activation on a single-cell level. It could therefore be considered an alternative to classical electric neurostimulation. The physiological ...
Goldinduzierte Nanostrukturierung vicinaler Si(001)-Oberflächen

Meyer zu Heringdorf, Frank-Joachim (Hannover : Universität Hannover, 1999)

[no abstract]
Injection of ligand-free gold and silver nanoparticles into murine embryos does not impact pre-implantation development

Taylor, Ulrike; Garrels, Wiebke; Barchanski, Annette; Peterson, Svea; Sajti, Laszlo; Lucas-Hahn, Andrea; Gamrad, Lisa; Baulain, Ulrich; Klein, Sabine; Kues, Wilfried A.; Barcikowski, Stephan; Rath, Detlef (Frankfurt am Main : Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2014)

Intended exposure to gold and silver nanoparticles has increased exponentially over the last decade and will continue to rise due to their use in biomedical applications. In particular, reprotoxicological aspects of these ...
Investigating the origin of third harmonic generation from diabolo optical antennas

Shi, Liping; Andrade, Jose R.C.; Kim, Hyunwoong; Han, Seunghwoi; Nicolas, Rana; Franz, Dominik; Boutu, Willem; Heidenblut, Torsten; Segerink, Frans B.; Bastiaens, Bert; Merdji, Hamed; Kim, Seung-Woo; Morgner, Uwe; Kovačev, Milutin (American Institute of Physics Inc., 2017)

We propose to use diabolo nanoantennas for experimentally investigating the origin of the enhanced third harmonic generation by localized surface plasmon polaritons. In such a geometry, the opposing apexes of bowties are ...
Investigation of biophysical mechanisms in gold nanoparticle mediated laser manipulation of cells using a multimodal holographic and fluorescence imaging setup

Kalies, Stefan; Antonopoulos, Georgios C.; Rakoski, Mirko S.; Heinemann, Dag; Schomaker, Markus; Ripken, Tammo; Meyer, Heiko (San Francisco, CA : Public Library of Science (PLoS), 2015)

Laser based cell manipulation has proven to be a versatile tool in biomedical applications. In this context, combining weakly focused laser pulses and nanostructures, e.g. gold nanoparticles, promises to be useful for high ...
Light driven reactions of single physisorbed azobenzenes

Bazarnik, Maciej; Henzl, Jörg; Czajka, Ryszard; Morgenstern, Karina (Cambridge : Royal Society of Chemistry, 2011)

We present a successful attempt of decoupling a dye molecule from a metallic surface via physisorption for enabling direct photoisomerization. Effective switching between the isomers is possible by exposure to UV light via ...
Optical and electron microscopy study of laser-based intracellular molecule delivery using peptide-conjugated photodispersible gold nanoparticle agglomerates

Krawinkel, Judith; Richter, Undine; Torres-Mapa, Maria Leilani; Westermann, Martin; Gamrad, Lisa; Rehbock, Christoph; Barcikowski, Stephan; Heisterkamp, Alexander (London : BioMed Central Ltd., 2016)

Background: Cell-penetrating peptides (CPPs) can act as carriers for therapeutic molecules such as drugs and genetic constructs for medical applications. The triggered release of the molecule into the cytoplasm can be ...
Optimized designing of a patch phased array with a MoM-solver

Wang, Yuanhao; Berens, Michael; Nietsch, Alexander; John, Werner; Mathis, Wolfgang (Bingley : Emerald Group Publishing Ltd., 2014)

Purpose - The purpose of this paper is to present an optimization process for the design of a 2×2 patch antenna phased array with application for an UHF RFID system. Design/methodology/approach - The optimization process ...
Spatially-targeted laser fabrication of multi-metal microstructures inside a hydrogel

Machida, Manan; Niidome, Takuro; Onoe, Hiroaki; Heisterkamp, Alexander; Terakawa, Mitsohiro (Washington, DC : OSA - The Optical Society, 2019)

The spatially-targeted fabrication of bimetallic microstructures coexisting in the supporting hydrogel is demonstrated by multi-photon photoreduction. Microstructures composed of gold and silver were fabricated along a ...
Surface plasmons on ordered and bi-continuous spongy nanoporous gold

Sardana, Neha; Birr, Tobias; Schlenker, Sven; Reinhardt, Carsten; Schilling, Jörg (Bristol : IOP Publishing Ltd., 2014)

The dispersion relation and propagation of surface plasmons polaritons (SPPs) on nanoporous gold films is experimentally investigated and an increasing red shift of the SPPs is observed with rising porosity. This is caused ...

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Auflistung nach Schlagwort "Gold"

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