Journal
SCIENCE ADVANCES
Volume 5, Issue 10, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aax2805
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Funding
- DFG (Germany) [EH 394/3]
- Dr. Erich Kruger Foundation (Germany)
- BHMZ at TU Bergakademie Freiberg (Germany)
- SMWK Project 2018 (Germany) [02010311]
- DAAD-Italy Project Marine Sponges as Sources for Bioinspired Materials Science [57397326]
- Ministry of Science and Higher Education (Poland)
- DAAD
- Erasmus Plus programs
- Polish National Agency for Academic Exchange [PPN/BEK/2018/1/00071]
- German Research Foundation (DFG), Collaborative Research Centre 799 (CRC 799) TRIP-matrix composites project
- UD RAS [15-10-2-23]
- Bilateral Program of the Russian-German Laboratory at BESSY II
- German-Russian Interdisciplinary Science Center (G-RISC) - German Federal Foreign Office via the German Academic Exchange Service (DAAD)
- Russian Science Foundation [17-14-01089]
- Slovak grant agency [APVV 16-0039]
- International Institute of Biomineralogy (INTIB GmbH, Germany)
- RFBR [19-02-00106a]
- Russian Science Foundation [17-14-01089] Funding Source: Russian Science Foundation
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Fabrication of biomimetic materials and scaffolds is usually a micro- or even nanoscale process; however, most testing and all manufacturing require larger-scale synthesis of nanoscale features. Here, we propose the utilization of naturally prefabricated three-dimensional (3D) spongin scaffolds that preserve molecular detail across centimeter-scale samples. The fine-scale structure of this collagenous resource is stable at temperatures of up to 1200 degrees C and can produce up to 4 x 10-cm-large 3D microfibrous and nanoporous turbostratic graphite. Our findings highlight the fact that this turbostratic graphite is exceptional at preserving the nanostructural features typical for triple-helix collagen. The resulting carbon sponge resembles the shape and unique microarchitecture of the original spongin scaffold. Copper electroplating of the obtained composite leads to a hybrid material with excellent catalytic performance with respect to the reduction of p-nitrophenol in both freshwater and marine environments.
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