Research areas
My research interests involve the reactions that take place at mineral surfaces, that is:
- Crystal growth and dissolution processes, including ligand promoted dissolution of metal ions, using both natural chelating agents such as siderophores and anthropogenic chelators such as EDTA and DTPA;
- Crystal growth inhibition processes using organic inhibitors such as phosphonates and carboxylates;
- Mineral replacement reactions occurring at fluid/mineral interfaces and the subsequent development of porosity.
My experiments are carried out mainly in a fluid cell of an AFM (Digital Instruments Nanoscope III Multimode and Dimension 3000). I also use electron microscopy to characterise the samples.
CV
Education
- PhD studies and graduation as Dr. rer. nat., University of Münster
- Diploma in Education, University of Newcastle, Australia
Positions
- Angestellte Wissenschaftlerin, Universität Münster
- Research Associate, Department of Earth Sciences, University of Cambridge, England
- Elternzeit (6 Kinder)
- Chemistry Teacher in Cambridge, England
- Chemistry Teacher in London
- Chemistry Teacher in Sydney, Australia
External Functions
- Member Mineralogical Society of Great Britain
- Member European Geochemistry Society
Publications
- . (). Phosphorylated/Nonphosphorylated Motif in Amelotin Turns off/on the Acidic Amorphous Calcium Phosphate-to-Apatite Phase Transformation. Langmuir, 36, 2102–2109.
- . (). Molecular understanding of humic acid-limited phosphate precipitation and transformation. environmental Science & Technology, 54, 207–215.
- . (). Timescales of interface-coupled dissolution-precipitation reactions on carbonates. Geoscience Frontiers, 10, 17–27.
- . (). Humic acids limit the precipitation of cadmium and arsenate at the brushite-fluid interface. Environmental Science & Technology, 53, 194–202.
- . (). Inhibition of Spiral Growth and Dissolution at the Brushite (010) Interface by Chondroitin 4-Sulfate. The Journal of Physical Chemistry B, 123, 845–851.
- . (). Direct observations of the coupling between quartz dissolution and Mg-silicate formation. Earth and Space Chemistry, 3, 617–625.
- . (). Editorial for Special Issue “Mineral Surface Reactions at the Nanoscale”. Minerals, 9, 185–187.
- . (). An Underlying Role of Brushite in Pathological Mineralization of Hydroxyapatite. The Journal of Physical Chemistry B, 123, 2874–2881.
- . (). Mineral reactivity: from biomineralization and Earth’s climate evolution, to CO2 capture and monument preservation. European Journal of Mineralogy, 31, 205–207.
- . (). Baryte cohesive layers formed on a (010) gypsum surface by a pseudomorphic replacement. European Journal of Mineralogy, 31, 289–299.
- . (). Direct observations of the occlusion of soil organic matter within calcite. Environmental Science & Technology, 53, 8097–8104.
- . (). Molecular-scale investigations reveal non-covalent bonding underlying the adsorption of environmental DNA on mica. Environmental Science and Technology, 53, 11251–11259.
- (). Mechanisms of Modulation of Calcium Phosphate Pathological Mineralization by Mobile and Immobile Small-Molecule Inhibitors. Journal of Physical Chemistry B, 5, 1580–1587.
- . (). Sequestration of Antimony on Calcite Observed by Time-Resolved Nanoscale Imaging. Environmental Science and Technology, 52(1), 107–113. doi: 10.1021/acs.est.7b04727.
- 10.1038/s41467-018-03039-9. (). Peridotite weathering is the missing ingredient of Earth's continental crust composition. Nature Communications, 9(1). doi:
- . (). Dynamics and molecular mechanism of phosphate binding to biomimetic hexapeptide. environmental Science & Technology, 52, 10472–10479.
- . (). Interfacial precipitation of phosphate on hematite and goethite. Minerals, 8, 207–219.
- . (). Atomic force microscopy imaging of classical and nonclassical surface growth dynamics of calcium orthophosphates. CrystEngComm, 20, 2886–2896. doi: 10.1039/C7CE02100C.
- . (). Direct observations of simultaneous immobilization of cadmium and arsenate at the brushite−fluid interface. Environmental Science & Technology, 52, 3493–3502.
- . (). Metal sequestration through coupled dissolution-precipitation at the brucite-water interface. Minerals, 8, 346.
- . (). Mineral Surface Rearrangement at High Temperatures: Implications for Extraterrestrial Mineral Grain Reactivity. ACS Earth and Space Chemistry, 2017. doi: 10.1021/acsearthspacechem.6b00016.
- 10.2138/am-2017-5725. (). The replacement of a carbonate rock by fluorite: Kinetics and microstructure. American Mineralogist, 102(1), 126–134. doi:
- . (). Hydration Effects on the Stability of Calcium Carbonate Pre-Nucleation Species. Minerals, 7(7). doi: 10.3390/min7070126.
- . (). Halide-dependent Dissolution of dicalcium phosphate dihydrate and its modulation by an organic ligand. Crystal Growth and Design, 17, 3868–3876.
- . (). In situ atomic force microscopy imaging of octacalcium phosphate crystallization and its modulation by amelogenin's C-terminus. Crystal Growth and Design, 17, 2194–2202.
- . (). Imaging organophosphate and pyrophosphate sequestration on brucite by in situ atomic force microscopy. Environmental Science & Technology, 51, 328–336.
- . (). The replacement of a carbonate rock by fluorite: Kinetics and microstructure. American Mineralogist, 102, 126–134.
- . (). Mineral reaction kinetics: Microstructures, textures, chemical and isotopic signatures. EMU Notes in Mineralogy, 16, 419–467.
Research articles (Journals)
- 10.1039/c6ce00142d. (). Exploring the effect of poly(acrylic acid) on pre- and post-nucleation BaSO4 species: New insights into the mechanisms of crystallization control by polyelectrolytes. CrystEngComm, 18(16), 2830–2842. doi:
- 10.1130/G37856.1. (). Control of silicate weathering by interface-coupled dissolutionprecipitation processes at the mineral-solution interface. Geology, 44(7), 567–570. doi:
- 10.1039/c6ce00537c. (). A potentiometric study of the performance of a commercial copolymer in the precipitation of scale forming minerals. CrystEngComm, 18(30), 5744–5753. doi:
- 10.1021/acs.cgd.6b00637. (). Direct Observation of Spiral Growth, Particle Attachment, and Morphology Evolution of Hydroxyapatite. Crystal Growth and Design, 16(8), 4509–4518. doi:
- 10.1021/acs.est.5b05214. (). Visualizing Organophosphate Precipitation at the Calcite-Water Interface by in Situ Atomic-Force Microscopy. Environmental Science and Technology, 50(1), 259–268. doi:
- 10.1016/j.chemgeo.2016.01.022. (). The pseudomorphic replacement of marble by apatite: The role of fluid composition. Chemical Geology, 425(null), 1–11. doi:
- 10.1016/j.cej.2015.07.077. (). Removal of Fe(II) from groundwater via aqueous portlandite carbonation and calcite-solution interactions. Chemical Engineering Journal, 283(null), 404–411. doi:
- 10.1016/j.gca.2016.02.008. (). Hydration effects on gypsum dissolution revealed by in situ nanoscale atomic force microscopy observations. Geochimica et Cosmochimica Acta, 179(null), 110–122. doi:
- . (). Control of silicate weathering by interface-coupled dissolution-precipitation processes at the mineral-solution interface. Geology, 44(7), 567–570. doi: 10.1130/G37856.1.
Abstracts in Digital Collections (Conferences)
- (). A kinetic study of the replacement of calcite marble by fluorite. In EGU General Assembly 2016, Vienna.
- 10.1021/acs.est.5b00312. (). In situ imaging of interfacial precipitation of phosphate on goethite. Environmental Science and Technology, 49(7), 4184–4192. doi:
- 10.1016/j.gca.2015.02.012. (). Experimental study of the replacement of calcite by calcium sulphates. Geochimica et Cosmochimica Acta, 156(null), 75–93. doi:
- 10.1016/j.chemgeo.2014.10.023. (). The influence of pH on barite nucleation and growth. Chemical Geology, 391(null), 7–18. doi:
- 10.1021/acs.cgd.5b00315. (). Mechanistic Principles of Barite Formation: From Nanoparticles to Micron-Sized Crystals. Crystal Growth and Design, 15(8), 3724–3733. doi:
- 10.1016/j.gca.2015.03.025. (). Interactions of arsenic with calcite surfaces revealed by in situ nanoscale imaging. Geochimica et Cosmochimica Acta, 159(null), 61–79. doi:
Articles
Research articles (Journals)
- . (). Direct nanoscale observations of the coupled dissolution of calcite and dolomite and the precipitation of gypsum. Beilstein Journal of Nanotechnology, 5, 1245–53. doi: 10.3762/bjnano.5.138.
- . (). The effect of a copolymer inhibitor on barite precipitation. Mineralogical Magazine, 78. doi: 10.1180/minmag.2014.078.6.09.
- . (). The influence of pH on barite nucleation and growth. Chemical Geology, 000.
- 10.1093/petrology/egu030. (). Textural evolution of plagioclase feldspar across a shear zone: Implications for deformation mechanism and rock strength. Journal of Petrology, 55(8), 1457–1477. doi:
- 10.1021/cg401119p. (). Direct observations of the dissolution of fluorite surfaces with different orientations. Crystal Growth and Design, 14(1), 69–77. doi:
- 10.1127/0935-1221/2013/0025-2346. (). Replacement and ion exchange reactions of scolecite in a high pH aqueous solution. European Journal of Mineralogy, 26(1), 61–69. doi:
- 10.1016/j.chemgeo.2014.04.016. (). Pseudomorphic replacement of diopside during interaction with (Ni,Mg)Cl2 aqueous solutions: Implications for the Ni-enrichment mechanism in talc- and serpentine-type phases. Chemical Geology, 380(null), 27–40. doi:
- 10.1039/c3cp54923b. (). Modelling the effects of salt solutions on the hydration of calcium ions. Physical Chemistry Chemical Physics, 16(17), 7772–7785. doi:
Research Articles in Edited Proceedings (Conferences)
- . (). Early stages of BaSO4 precipitation. In Goldschmidt, Sacramento, EEUU.
Abstracts in Digital Collections (Conferences)
- . (). Self-assembled BaSO4 crystals. In International School of Crystallization, Granada, Spain.
- . (). Study of BaSO4 crystallization by TEM. In International Carbon Conference, Reykjavik, Iceland.
- . (). TEM analysis of the initial stages of BaSO4 crystallization. In EGU General Assembly, Wien, Austria.
Reviews (Journals)
- 10.1016/j.chemgeo.2014.06.007. (). Coupled dissolution and precipitation at mineral-fluid interfaces. Chemical Geology, 383(null), 132–146. doi:
Research articles (Journals)
- . (). Sequestration of selenium on calcite surfaces revealed by nanoscale imaging. Environmental Science and Technology, 47(23), 13469–76. doi: 10.1021/es403637u.
- 10.1021/cg300744x. (). Template-assisted crystallization of sulfates onto calcite: Implications for the prevention of salt damage. Crystal Growth and Design, 13(1), 40–51. doi:
- 10.2113/gselements.9.3.177. (). The mineral-water interface: Where minerals react with the environment. Elements, 9(3), 177–182. doi:
- 10.1021/es403637u. (). Sequestration of selenium on calcite surfaces revealed by nanoscale imaging. Environmental Science and Technology, 47(23), 13469–13476. doi:
- 10.1016/j.chemgeo.2012.12.017. (). Selenium incorporation into calcite and its effect on crystal growth: An atomic force microscopy study. Chemical Geology, 340(null), 151–161. doi:
- 10.1016/j.gca.2013.01.032. (). Direct observations of the influence of solution composition on magnesite dissolution. Geochimica et Cosmochimica Acta, 109(null), 113–126. doi:
- 10.1021/es402061c. (). Dissolution and carbonation of portlandite [Ca(OH)2] single crystals. Environmental Science and Technology, 47(19), 11342–11349. doi:
- 10.1016/j.gca.2013.03.025. (). An atomic force microscopy study of the dissolution of calcite in the presence of phosphate ions. Geochimica et Cosmochimica Acta, 117(null), 115–128. doi:
- 10.1039/c3ce41294f. (). Influence of chemical and structural factors on the calcite-calcium oxalate transformation. CrystEngComm, 15(46), 9968–9979. doi:
- 10.1021/es4041946. (). Coupled dissolution and precipitation at the cerussite-phosphate solution interface: Implications for immobilization of lead in soils. Environmental Science and Technology, 47(23), 13502–13510. doi:
Research Articles in Edited Proceedings (Conferences)
- . (). The pH influence on barite nucleation and growth. In Goldschmidt, Florenz, Italy.
Abstracts in Digital Collections (Conferences)
- . (). The influence of fluid composition on barite growth. In EGU General Assembly, Wien, Austria.
- 10.1180/minmag.2012.076.1.227. (). Direct observations of mineral-fluid reactions using atomic force microscopy: The specific example of calcite. Mineralogical Magazine, 76(1), 227–253. doi:
- 10.1021/es300403n. (). Direct nanoscale observations of CO2 sequestration during brucite [Mg(OH)2] dissolution. Environmental Science and Technology, 46(9), 5253–5260. doi:
- 10.1016/j.gca.2011.11.036. (). In situ nanoscale observations of the dissolution of {101̄4} dolomite cleavage surfaces. Geochimica et Cosmochimica Acta, 80(null), 1–13. doi:
- . (). Effect of pH on calcite growth at constant aCa2+/aCO32- ratio and supersaturation. Geochimica et Cosmochimica Acta, 75(1), 284–296. doi: 10.1016/j.gca.2010.09.034.
- . (). Specific effects of background electrolytes on the kinetics of step propagation during calcite growth. Geochimica et Cosmochimica Acta, 75(13), 3803–3814. doi: 10.1016/j.gca.2011.04.012.
- . (). MINERAL REPLACEMENT REACTIONS IN SOLID SOLUTION-AQUEOUS SOLUTION SYSTEMS: VOLUME CHANGES, REACTIONS PATHS AND END-POINTS USING THE EXAMPLE OF MODEL SALT SYSTEMS. American Journal of Science, 311(3), 211–236. doi: 10.2475/03.2011.02.
- 10.1039/c1ce05091e. (). Direct observations of the modification of calcite growth morphology by Li+ through selectively stabilizing an energetically unfavourable face. CrystEngComm, 13(12), 3962–3966. doi:
Research articles (Journals)
- . (). AFM study of the epitaxial growth of brushite (CaHPO4· 2H2O) on gypsum cleavage surfaces. American Mineralogist, 95(11-12), 1747–1757. doi: 10.2138/am.2010.3557.
- . (). Interactions between organophosphonate-bearing solutions and (1014) calcite surfaces: An atomic force microscopy and first-principles molecular dynamics study. Crystal Growth and Design, 10(7), 3022–3035. doi: 10.1021/cg1000864.
- . (). Crystal growth of apatite by replacement of an aragonite precursor. Journal of Crystal Growth, 312(16-17), 2431–2440.
- . (). Interactions between Organophosphonate-Bearing Solutions and (10(1)over-bar4) Calcite Surfaces: An Atomic Force Microscopy and First-Principles Molecular Dynamics Study. Crystal Growth and Design, 10(7), 3022–3035. doi: 10.1021/cg1000864.
- . (). The role of background electrolytes on the kinetics and mechanism of calcite dissolution. Geochimica et Cosmochimica Acta, 74(4), 1256–1267.
- . (). Crystal Growth and Dissolution of Calcite in the Presence of Fluoride Ions: An Atomic Force Microscopy Study. Crystal Growth and Design, 10(1), 60–69.
Research articles (Book Contributions)
- 10.1180/EMU-notes.10.5. (). Ion partitioning and element mobilization during mineral replacement reactions in natural and experimental systems. In (Ed.), Ion partitioning in low temperature aqueous systems: from fundamentals to applications in climate, proxies and environmental geochemistry (10th Ed. , pp. 189–226). Selbstverlag / Eigenverlag / Self-publishing. doi:
- . (). The Control of Solution Composition on Ligand-Promoted Dissolution: DTPA-Barite Interactions. Crystal Growth and Design, 9(12), 5266–5272.
- . (). An atomic force microscopy study of calcite dissolution in saline solutions: The role of magnesium ions. Geochimica et Cosmochimica Acta, 73(11), 3201–3217. doi: 10.1016/j.gca.2009.03.016.
- . (). An Atomic Force Microscopy Study of the Growth of a Calcite Surface as a Function of Calcium/Total Carbonate Concentration Ratio in Solution at Constant Supersaturation. Crystal Growth and Design, 9(10), 4344–4350.
- . (). Apatite from calcium carbonates: A pseudomorphic replacement reaction. Geochimica et Cosmochimica Acta, 73(13), A624–A624.
- . (). The mechanism of cation and oxygen isotope exchange in alkali feldspars under hydrothermal conditions. Contributions to Mineralogy and Petrology, 157(1), 65–76. doi: 10.1007/s00410-008-0320-2.
- . (). Reaction induced fracturing during replacement processes. Contributions to Mineralogy and Petrology, 157(1), 127–133. doi: 10.1007/s00410-008-0324-y.
Research articles (Journals)
- . (). A mechanism of fluid infiltration through minerals - Implications for element mobilisation within the earth. Australasian Institute of Mining and Metallurgy Publication Series, 625–629.
- . (). Interaction between epsomite crystals and organic additives. Crystal Growth and Design, 8(8), 2665–2673. doi: 10.1021/cg070442n.
- . (). The mechanism of experimental oxidation and leaching of ilmenite in acid solution. Australasian Institute of Mining and Metallurgy Publication Series, 2, 503–506.
- . (). Zircon coronas around Fe-Ti oxides: a physical reference frame for metamorphic and metasomatic reactions. Contributions to Mineralogy and Petrology, 156(4), 517–527.
- . (). The mechanism and kinetics of DTPA-promoted dissolution of barite. Applied Geochemistry, 23(9), 2778–2788.
- . (). An Atomic Force Microscopy study of the growth of calcite in the presence of sodium sulfate. Chemical Geology, 253(3-4), 243–251.
- . (). Macro- to nanoscale study of the effect of aqueous sulphate on calcite growth. Mineralogical Magazine, 72(1), 141–144.
- . (). Pseudomorphic replacement of single calcium carbonate crystals by polycrystalline apatite. Mineralogical Magazine, 72(1), 77–80.
- . (). The effect of fluid composition on the mechanism of the aragonite to calcite transition. Mineralogical Magazine, 72(1), 111–114.
Other Scientific Publications
- . (). The mechanism of phosphate, immobilization by the replacement of carbonates by apatite.
Research articles (Journals)
- . (). The effect of cation:anion ratio in solution on the mechanism of barite growth at constant supersaturation: Role of the desolvation process on the growth kinetics. Geochimica et Cosmochimica Acta, 71(21), 5168–5179. doi: 10.1016/j.gca.2007.09.008.
- . (). The effect of cation : anion ratio in solution on the mechanism of barite growth at constant supersaturation: Role of the desolvation process on the growth kinetics. Geochimica et Cosmochimica Acta, 71(21), 5168–5179. doi: 10.1016/j.gca.2007.09.008.
- . (). The mechanism of reequilibration of solids in the presence of a fluid phase. Journal of Solid State Chemistry, 180(5), 1783–1786. doi: 10.1016/j.jssc.2007.03.023.
- . (). Hematite in porous red-clouded feldspars: Evidence of large-scale crustal fluid-rock interaction. Lithos, 95(1-2), 10–18. doi: 10.1016/j.lithos.2006.07.004.
Other Scientific Publications
- . (). The effect of [Ba2+]/[SO42-] ratio on the mechanism of barite growth at constant supersaturation.
- . (). The mechanism of oxidation and "leaching" of ilmenite during natural and experimental alteration.
- . (). The replacement of calcium carbonate by hydroxyapatite.
- . (). In situ AFM study of the dissolution and recrystallization behaviour of polished and stressed calcite surfaces. Geochimica et Cosmochimica Acta, 70(7), 1728–1738. doi: 10.1016/j.gca.2005.12.013.
Research articles (Journals)
- . (). Direct observations of pseudomorphism: Compositional and textural evolution at a fluid-solid interface. American Mineralogist, 90(11-12), 1909–1912. doi: 10.2138/am.2005.1990.
- . (). Interactions between mineral surfaces and dissolved species: From monovalent ions to complex organic molecules. American Journal of Science, 305(6-8 SPEC. ISS.), 791–825. doi: 10.2475/ajs.305.6-8.791.
- . (). Environmentally important, poorly crystalline Fe/Mn hydrous oxides: Ferrihydrite and a possibly new vernadite-like mineral from the Clark Fork River Superfund Complex. American Mineralogist, 90(4), 718–724. doi: 10.2138/am.2005.1591.
- . (). Direct observation of heavy metal-mineral association from the Clark Fork River Superfund Complex: Implications for metal transport and bioavailability. Geochimica et Cosmochimica Acta, 69(7), 1651–1663.
Other Scientific Publications
- . (). Does stress affect the dissolution of calcite?.
- . (). Growth of uranyl-hydroxy-hydrate and uranyl-carbonate minerals on the (104) surface of calcite. Canadian Mineralogist, 42, 1683–1697. doi: 10.2113/gscanmin.42.6.1683.
- . (). A mechanism of mineral replacement: Isotope tracing in the model system KCl-KBr-H2O. Geochimica et Cosmochimica Acta, 68(13), 2839–2848. doi: 10.1016/j.gca.2003.12.009.
- . (). Base-metals and organic content in stream sediments in the vicinity of a landfill. Applied Geochemistry, 19(1), 137–151. doi: 10.1016/S0883-2927(03)00130-6.
- . (). The dissolution rates of natural glasses as a function of their composition at pH 4 and 10.6, and temperatures from 25 to 74°C. Geochimica et Cosmochimica Acta, 68(23), 4843–4858. doi: 10.1016/j.gca.2004.05.027.
- . (). An atomic force microscopy and molecular simulations study of the inhibition of barite growth by phosphonates. Surface Science, 553(1-3), 61–74.
Research articles (Journals)
- . (). The mechanism of fluid infiltration in peridotites at Almklovdalen, western Norway. Geofluids, 2(3), 203–215. doi: 10.1046/j.1468-8123.2002.00038.x.
Other Scientific Publications
- . (). Heterogeneity of mineral surfaces and its role in geochemical surface reactions.