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1999 1
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34 results

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Page 1
The nucleation of C-S-H via prenucleation clusters.
Sowoidnich T, Damidot D, Ludwig HM, Germroth J, Rosenberg R, Cölfen H. Sowoidnich T, et al. J Chem Phys. 2023 Mar 21;158(11):114309. doi: 10.1063/5.0141255. J Chem Phys. 2023. PMID: 36948802
The evaluation of the density and molar mass of the species shows that the PNCs are much larger than ions, but the nucleation of C-S-H starts with the formation of liquid precursor C-S-H (droplets) with low density and high water content. The growth of these C-S- …
The evaluation of the density and molar mass of the species shows that the PNCs are much larger than ions, but the nucleation of C-S-H
Biodegradable Mineral Plastics.
Avasthi I, Lerner H, Grings J, Gräber C, Schleheck D, Cölfen H. Avasthi I, et al. Small Methods. 2024 Apr;8(4):e2300575. doi: 10.1002/smtd.202300575. Epub 2023 Jul 19. Small Methods. 2024. PMID: 37466247
The general procedure involves addition of equimolar solution of CaCl(2) to PGlu in equal volumes followed by addition of iPrOH (iPrOH:H(2)O = 1:1) under vigorous stirring conditions. The ready biodegradability of PGlu/CaFe mineral plastic is confirmed in this study where …
The general procedure involves addition of equimolar solution of CaCl(2) to PGlu in equal volumes followed by addition of iPrOH (iPrOH:H
"Carving on the Nanoscale": Polymers for the Site-Specific Dissolution of Calcium Phosphate Financial support by the Max Planck Society is gratefully acknowledged We thank Dr. H. Colfen, MPI Golm and Dr. H. Schnablegger, Universitat Hamburg, for helpful discussions.
Peytcheva A, Antonietti M. Peytcheva A, et al. Angew Chem Int Ed Engl. 2001 Sep 17;40(18):3380-3383. doi: 10.1002/1521-3773(20010917)40:18<3380::aid-anie3380>3.0.co;2-b. Angew Chem Int Ed Engl. 2001. PMID: 11592144 No abstract available.
Petunia-shaped superstructures of CaCO3 aggregates modulated by modified chitosan.
Liang P, Shen Q, Zhao Y, Zhou Y, Wei H, Lieberwirth I, Huang Y, Wang D, Xu D. Liang P, et al. Langmuir. 2004 Nov 23;20(24):10444-8. doi: 10.1021/la0481602. Langmuir. 2004. PMID: 15544371
The shuttlecock-like head of this superstructure strongly supports Colfen's opinion (Rudloff, J.; Colfen, H. Langmuir 2004, 20, 991-996) for the existence of a gas template of CO2 bubbles temporarily captured by polymer molecules, while formation of the stem …
The shuttlecock-like head of this superstructure strongly supports Colfen's opinion (Rudloff, J.; Colfen, H. Langmuir 2 …
The Open AUC Project.
Cölfen H, Laue TM, Wohlleben W, Schilling K, Karabudak E, Langhorst BW, Brookes E, Dubbs B, Zollars D, Rocco M, Demeler B. Cölfen H, et al. Eur Biophys J. 2010 Feb;39(3):347-59. doi: 10.1007/s00249-009-0438-9. Epub 2009 Mar 19. Eur Biophys J. 2010. PMID: 19296095 Free PMC article.
Optical glucose sensing using ethanolamine-polyborate complexes.
Toncelli C , Innocenti Malini R , Jankowska D , Spano F , Cölfen H , Maniura-Weber K , Rossi RM , Boesel LF . Toncelli C , et al. J Mater Chem B. 2018 Feb 7;6(5):816-823. doi: 10.1039/c7tb01790a. Epub 2018 Jan 19. J Mater Chem B. 2018. PMID: 32254269
The complexes, synthesized by just heating a solution of boric acid and ethanolamines at 150 C, were characterized using (13)C-NMR, (1)H-NMR, (11)B-NMR, analytical ultracentrifugation and DFT. The results show that the complexes in solution are extremely small (hydrodynami …
The complexes, synthesized by just heating a solution of boric acid and ethanolamines at 150 C, were characterized using (13)C-NMR, (1)H
Mesocrystalline calcium silicate hydrate: A bioinspired route toward elastic concrete materials.
Picker A, Nicoleau L, Burghard Z, Bill J, Zlotnikov I, Labbez C, Nonat A, Cölfen H. Picker A, et al. Sci Adv. 2017 Nov 29;3(11):e1701216. doi: 10.1126/sciadv.1701216. eCollection 2017 Nov. Sci Adv. 2017. PMID: 29209660 Free PMC article.
Calcium silicate hydrate (C-S-H) is the binder in concrete, the most used synthetic material in the world. ...Taking inspiration from a sea urchin spine with highly ordered nanoparticles in the biomineral mesocrystal, we report a bioinspired route toward a C-S-H mes …
Calcium silicate hydrate (C-S-H) is the binder in concrete, the most used synthetic material in the world. ...Taking inspiration from …
A sustainable one-pot method to transform seashell waste calcium carbonate to osteoinductive hydroxyapatite micro-nanoparticles.
Fernández-Penas R, Verdugo-Escamilla C, Triunfo C, Gärtner S, D'Urso A, Oltolina F, Follenzi A, Maoloni G, Cölfen H, Falini G, Gómez-Morales J. Fernández-Penas R, et al. J Mater Chem B. 2023 Sep 6;11(32):7766-7777. doi: 10.1039/d3tb00856h. J Mater Chem B. 2023. PMID: 37476854
We have developed a straightforward, one-pot, low-temperature hydrothermal method to transform oyster shell waste particles (bCCP) from the species Crassostrea gigas (Mg-calcite, 5 wt% Mg) into hydroxyapatite (HA) micro/nanoparticles. The influence of the P reagents (H(3)P …
We have developed a straightforward, one-pot, low-temperature hydrothermal method to transform oyster shell waste particles (bCCP) from the …
34 results