Hybrid Biomimetic Materials from Silica/Carbonate Biomorphs

Hybrid Biomimetic Materials from Silica/Carbonate Biomorphs

Opel, J., Unglaube, N., Wörner, M., Kellermeier, M., Cölfen, H., & García-Ruiz, J. M. (2019). Hybrid biomimetic materials from silica/carbonate biomorphs. Crystals, 9(3), 157. Download here: https://www.mdpi.com/2073-4352/9/3/157 The formation of a polymer protection layer around fragile mineral architectures ensures that structures stay intact even after treatments that would normally destroy them going along with a total loss of textural information. Here we present a strategy to preserve the shape of silica-carbonate biomorphs with polymers. This method converts…

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A Universal Geochemical Scenario for Formamide Condensation and Prebiotic Chemistry

A Universal Geochemical Scenario for Formamide Condensation and Prebiotic Chemistry

Saladino, R., Di Mauro, E., & García‐Ruiz, J. M. (2019). A Universal Geochemical Scenario for Formamide Condensation and Prebiotic Chemistry. Chemistry–A European Journal, 25(13), 3181-3189. Download here: https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/chem.201803889 The condensation of formamide has been shown to be a robust chemical pathway affording molecules necessary for the origin of life. It has been experimentally demonstrated that condensation reactions of formamide are catalyzed by a number of minerals, including silicates, phosphates, sulfides, zirconia, and borates, and by cosmic dusts…

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Thermal assisted self-organization of calcium carbonate

Thermal assisted self-organization of calcium carbonate

Zhang, G., Verdugo-Escamilla, C., Choquesillo-Lazarte, D., & García-Ruiz, J. M. (2018). Thermal assisted self-organization of calcium carbonate. Nature communications, 9(1), 1-7. Download here: https://www.nature.com/articles/s41467-018-07658-0.pdf Fabrication of mineral multi-textured architectures by self-organization is a formidable challenge for engineering. Current approaches follow a biomimetic route for hybrid materials based on the coupling of carbonate and organic compounds. We explore here the chemical coupling of silica and carbonate, leading to fabrication of inorganic–inorganic biomimetic structures known as silica-carbonate biomorphs. So…

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A crystallographic study of crystalline casts and pseudomorphs from the 3.5 Ga Dresser Formation, Pilbara Craton (Australia)

A crystallographic study of crystalline casts and pseudomorphs from the 3.5 Ga Dresser Formation, Pilbara Craton (Australia)

Otálora, F., Mazurier, A., Garcia-Ruiz, J. M., Van Kranendonk, M. J., Kotopoulou, E., El Albani, A., & Garrido, C. J. (2018). A crystallographic study of crystalline casts and pseudomorphs from the 3.5 Ga Dresser Formation, Pilbara Craton (Australia). Journal of applied crystallography, 51(4), 1050-1058.  Download here: https://journals.iucr.org/j/issues/2018/04/00/jo5036/jo5036.pdf Crystallography has a long history of providing knowledge and methods for applications in other disciplines. The identification of minerals using X-ray diffraction is one of the most important contributions of…

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Field trips to Rift Valley (Kenya)

Field trips to Rift Valley (Kenya)

We conducted the first trip to the alkaline lakes of the Rift Valley in Kenya from 8 to 23 of March 2016. The first day upon arrival we had scheduled several meetings with the authorities of Kenyan Wildlife Services and National Museums of Kenya to have permissions to do the exploration. During this trip of ten days we started exploring all the springs feeding the lake Magadi and Little Magadi. We collected samples of water,…

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Field trip to Aqua de Ney (California)

Field trip to Aqua de Ney (California)

This was our second trip to Siskiyou County (California, USA) from 1 to 7 of November in 2017. We returned to Aqua de Ney spring to collect water samples from the wells and to perform in situ measurements. We have collected water from many other springs in the area and measured in situ several hydrochemical environments. Bad weather and a number of logistic problems made impossible to reach Trinity 2, one of the most interesting…

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Field trip to Dallol (Ethiopia)

Field trip to Dallol (Ethiopia)

We have returned to Dallol (from 4 to 20 of February 2019) to continue our research on the origin of the Mount Dallol and the hydrothermal system that it is developing there. Our field studies so far indicate that Dallol is a salt volcano, the first to be reported. We have also studied the geology of the area and discovered at least a new volcano, a stratovolcano. We have collected numerous salt rocks with different…

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Read the PROMETHEUS webcomic: “Something in the water”

Read the PROMETHEUS webcomic: “Something in the water”

Don’t miss Till Lukat’s “Something in the water”, the webcomic based on our own PROMETHEUS project is already on its 7th chapter. Join “Prof. De Arce” and his team on their crystallographic and biomorph seeking adventures on: bit.ly/SomthngWatr “Something in the water”, el webcomic de Till Lukat basado en nuestro proyecto PROMETHEUS ya va por su séptimo capítulo. Únete al “Prof. De Arce” y su equipo en sus aventuras cristalográficas en busca de biomorfos: bit.ly/SomthngWatr

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Mineral self-organization of primitive earth

Mineral self-organization of primitive earth

It is almost impossible to find a place on the Earth’s surface where chemistry has not been influenced by biology. But there was a time when the planet was barren and the phenomena of mineral formation were different from today… Juan Manuel García Ruiz tells us about the mineral self-organization of the primitive earth.

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