Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Johannes Ostermann"'
Autor:
Jan-Philip Merkl, Malak Safi, Christian Schmidtke, Fadi Aldeek, Johannes Ostermann, Tatiana Domitrovic, Sebastian Gärtner, John E. Johnson, Horst Weller, Hedi Mattoussi
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 2477-2482 (2019)
In this letter, we report on the ability of functional fusion proteins presenting a lytic gamma peptide, to promote interactions with HeLa cells and delivery of large hybrid nanostructures.
Externí odkaz:
https://doaj.org/article/b520b9a2a8fa40489d30c7564ad9fb33
Tailoring the ligand shell for the control of cellular uptake and optical properties of nanocrystals
Autor:
Johannes Ostermann, Christian Schmidtke, Christopher Wolter, Jan-Philip Merkl, Hauke Kloust, Horst Weller
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 6, Iss 1, Pp 232-242 (2015)
In this short review, the main challenges in the use of hydrophobic nanoparticles in biomedical application are addressed. It is shown how to overcome the different issues by the use of a polymeric encapsulation system, based on an amphiphilic polyis
Externí odkaz:
https://doaj.org/article/1c57347472bb487b9db77ca446ede7a2
Autor:
John E. Johnson, Christian Schmidtke, Horst Weller, Jan-Philip Merkl, Johannes Ostermann, Fadi Aldeek, Sebastian Gärtner, Malak Safi, Tatiana Domitrovic, Hedi Mattoussi
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 2477-2482 (2019)
Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology
In this letter, we report on the ability of functional fusion proteins presenting a lytic gamma peptide, to promote interactions with HeLa cells and delivery of large hybrid nanostructures.
Publikováno v:
Tetrahedron. 72:4186-4193
Nucleophilic attack by alkynyl anions on the verbenone skeleton occurs on the face opposite to that occupied by the gem-dimethyl group. The resulting alkynols react with dicobalt octacarbonyl to form tetrahedral (μ2-alkyne)Co2(CO)6 clusters in which
Autor:
Christian Schmidtke, Horst Weller, Jan-Philip Merkl, Alf Mews, Christopher Wolter, Johannes Ostermann, Sandra Flessau, Artur Feld
Publikováno v:
Nanoscale. 8:7402-7407
Detailed steady-state and time-resolved fluorescence quenching measurements give deep insight into ion transport through nanometer thick diblock copolymer membranes, which were assembled as biocompatible shell material around CdSe/CdS quantum dot in
Autor:
Johannes Ostermann, Jan-Philip Merkl, Christopher Wolter, Theo Schotten, Michael Kampferbeck, Horst Weller, Hauke Kloust, Christian Schmidtke, Alf Mews, Sandra Flessau, Robin Eggers, Artur Feld
Publikováno v:
Angewandte Chemie International Edition. 54:12468-12471
Seeded emulsion polymerization is a powerful universal method to produce ultrasmall multifunctional magnetic nanohybrids. In a two-step procedure, iron oxide nanocrystals were initially encapsulated in a polystyrene (PS) shell and subsequently used a
Autor:
Michael Kampferbeck, Christian Schmidtke, Christopher Wolter, Sandra Flessau, Jan-Philip Merkl, Johannes Ostermann, Artur Feld, Hauke Kloust, Alf Mews, Robin Eggers, Horst Weller, Theo Schotten
Publikováno v:
Angewandte Chemie. 127:12645-12648
Die Saat-Emulsionspolymerisation ist eine effiziente Herstellungsmethode fur nanoskalige multifunktionale Hybridmaterialien. In einem zweistufigen Prozess wurden zunachst Eisenoxidnanopartikel mit einer Hulle aus Polystyrol verkapselt. Diese wurden a
Tailoring the ligand shell for the control of cellular uptake and optical properties of nanocrystals
Autor:
Hauke Kloust, Johannes Ostermann, Christopher Wolter, Jan-Philip Merkl, Horst Weller, Christian Schmidtke
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 6, Iss 1, Pp 232-242 (2015)
Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology
In this short review, the main challenges in the use of hydrophobic nanoparticles in biomedical application are addressed. It is shown how to overcome the different issues by the use of a polymeric encapsulation system, based on an amphiphilic polyis
Autor:
Manuela Gehring, Christian Schmidtke, Elmar Pöselt, Theo Schotten, Horst Weller, Ursula E. A. Fittschen, Hauke Kloust, Artur Feld, Jan-Philip Merkl, Johannes Ostermann
Publikováno v:
The Journal of Physical Chemistry C. 117:23244-23250
The polymer encapsulation of quantum dots via seeded emulsion polymerization is a powerful method for the preparation of extraordinarily stable fluorescent particles and furthermore allows simple and straightforward in situ functionalization of the p
Autor:
Joachim Thiem, Hauke Kloust, Theo Schotten, Anna-Marlena Kreuziger, Robin Eggers, Christian Schmidtke, Horst Weller, Johannes Ostermann, Huong Lan Tran, Julian Thimm, Anna Jacobsen, Yevgeniy Leshch, Dirk Alpers
Publikováno v:
Langmuir. 29:12593-12600
Herein, we present a strategy for the glycoconjugation of nanoparticles (NPs), with a special focus on fluorescent quantum dots (QDs), recently described by us as "preassembly" approach. Therein, prior to the encapsulation of diverse nanoparticles by