Details

Autor(en) / Beteiligte

• Wysokowski, Marcin
• Motylenko, Mykhailo
• Beyer, Jan
• Makarova, Anna
• Stöcker, Hartmut
• Walter, Juliane
• Galli, Roberta
• Kaiser, Sabine
• Vyalikh, Denis
• Bazhenov, Vasilii V.
• Petrenko, Iaroslav
• Stelling, Allison L.
• Molodtsov, Serguei L.
• Stawski, Dawid
• Kurzydłowski, Krzysztof J.
• Langer, Enrico
• Tsurkan, Mikhail V.
• Jesionowski, Teofil
• Heitmann, Johannes
• Meyer, Dirk C.
• Ehrlich, Hermann

Titel

Extreme biomimetic approach for developing novel chitin-GeO2 nanocomposites with photoluminescent properties

Ist Teil von

• Nano research, 2015-07, Vol.8 (7), p.2288-2301

Ort / Verlag

Beijing: Tsinghua University Press

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work presents an extreme biomimetics route for the creation of nano- structured biocomposites utilizing a chitinous template of poriferan origin. The specific thermal stability of the nanostructured chitinous template allowed for the formation under hydrothermal conditions of a novel germanium oxide- chitin composite with a defined nanoscale structure. Using a variety of analytical techniques （FTIR, Raman, energy dispersive X-ray （EDX）, near-edge X-ray absorption fine structure （NEXAFS）, and photoluminescence （PL） spectroscopy, EDS-mapping, selected area for the electron diffraction pattern （SAEDP）, and transmission electron microscopy （TEM））, we showed that this bioorganic scaffold induces the growth of GeO2 nanocrystals with a narrow （150-300 nm） size distri- bution and predominantly hexagonal phase, demonstrating the chitin template＇s control over the crystal morphology. The formed GeO2-chitin composite showed several specific physical properties, such as a striking enhancement in photo- luminescence exceeding values previously reported in GeOR-based biomaterials. These data demonstrate the potential of extreme biomimetics for developing new-generation nanostructured materials.