TY  - GEN
A1  - Taubert, Andreas
A1  - Balischewski, Christian
A1  - Hentrich, Doreen
A1  - Elschner, Thomas
A1  - Eidner, Sascha
A1  - Günter, Christina
A1  - Behrens, Karsten
A1  - Heinze, Thomas
T1  - Water-soluble cellulose derivatives are sustainable additives for biomimetic calcium phosphate mineralization
N2  - The effect of cellulose-based polyelectrolytes on biomimetic calcium phosphate mineralization is described. Three cellulose derivatives, a polyanion, a polycation, and a polyzwitterion were used as additives. Scanning electron microscopy, X-ray diffraction, IR and Raman spectroscopy show that, depending on the composition of the starting solution, hydroxyapatite or brushite precipitates form. Infrared and Raman spectroscopy also show that significant amounts of nitrate ions are incorporated in the precipitates. Energy dispersive X-ray spectroscopy shows that the Ca/P ratio varies throughout the samples and resembles that of other bioinspired calcium phosphate hybrid materials. Elemental analysis shows that the carbon (i.e., polymer) contents reach 10% in some samples, clearly illustrating the formation of a true hybrid material. Overall, the data indicate that a higher polymer concentration in the reaction mixture favors the formation of polymer-enriched materials, while lower polymer concentrations or high precursor concentrations favor the formation of products that are closely related to the control samples precipitated in the absence of polymer. The results thus highlight the potential of (water-soluble) cellulose derivatives for the synthesis and design of bioinspired and bio-based hybrid materials.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 354 
KW  - cellulose
KW  - polyamine
KW  - polyammonium salt
KW  - polycarboxylate
KW  - polyzwitterion
KW  - calcium phosphate
KW  - biomineralization
KW  - brushite
KW  - hydroyxapatite
KW  - biomaterial
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-400453
ER  - 
TY  - JOUR
A1  - Salama, Ahmed
A1  - Neumann, Mike
A1  - Günter, Christina
A1  - Taubert, Andreas
T1  - Ionic liquid-assisted formation of cellulose/calcium phosphate hybrid materials
JF  - Beilstein journal of nanotechnology
N2  - Cellulose/calcium phosphate hybrid materials were synthesized via an ionic liquid-assisted route. Scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, infrared spectroscopy, and thermogravimetric analysis/differential thermal analysis show that, depending on the reaction conditions, cellulose/hydroxyapatite, cellulose/ chlorapatite, or cellulose/monetite composites form. Preliminary studies with MC3T3-E1 pre-osteoblasts show that the cells proliferate on the hybrid materials suggesting that the ionic liquid-based process yields materials that are potentially useful as scaffolds for regenerative therapies.
KW  - biomineralization
KW  - calcium phosphate
KW  - carbohydrates
KW  - cellulose
KW  - hybrid materials
KW  - ionic liquid
Y1  - 2014
U6  - https://doi.org/10.3762/bjnano.5.167
SN  - 2190-4286
VL  - 5
SP  - 1553
EP  - 1568
PB  - Beilstein-Institut zur Förderung der Chemischen Wissenschaften
CY  - Frankfurt, Main
ER  -