Gauthier Deblonde

Postdoctoral Researcher
Nuclear and Chemical Sciences Division
Phone: +19254232068


  • PhD, Physical and analytical chemistry, Pierre and Marie Curie University, Paris, 2015
  • Engineer diploma, Chemical sciences and engineering, École Nationale Supérieure de Chimie de Paris (‘‘Chimie ParisTech’’), 2012
  • MS, Nuclear fuel cycle engineering, ParisTech and the National Institute for Nuclear Science and Technology, 2012


  • Postdoctoral Research Scientist, LLNL, 2019–2020
  • Postdoctoral Research Scientist, LBNL, 2016–2019

Research Interests

Radiochemistry, hydrometallurgy, speciation. My research focuses on the interactions between metal ions and chelators (natural small molecules, polyoxometalates, synthetic ligands, or macromolecules such as proteins) with implications spanning from separation technologies to medical applications, actinide and lanthanide sciences, strategic metal mining, and the behavior of heavy metals in the environment.

Public Profiles

LinkedIn | ResearchGate | Google Scholar | Publons | ORCID

Publication List (by date)

[35]  D. Park, A. Middleton, R. Smith, G.J.-P. Deblonde, D. Laudal, N. Theaker, H. Hsu-Kim, Y. Jiao, A biosorption-based approach for selective extraction of rare earth elements from coal byproducts, Separation and Purification Technology. (2020) DOI: 10.1016/j.seppur.2020.11672

[34]  G.J.-P. Deblonde, A. Ricano, R.J. Abergel. Ultra-selective ligand-driven separation of strategic actinides, Nature Communications, (2019) DOI:10.1038/s41467-019-10240-x

[33]  T. Schenkel,  A. Persaud, H. Wang, P. A. Seidl,  R. MacFadyen, C. Nelson, W. L. Waldron,  J.-L. Vay,  G..-P. Deblonde,  B. Wen, Y.-M. Chiang, B. P. MacLeod, and Q. Ji, Journal of Applied Physics, (2019). DOI: 10.1063/1.5109445

[32]  A. Ricano,  I. Captain,  K. P. Carter,  B. P. Nell,  G.J.-P. Deblonde , R.J. Abergel . Combinatorial design of multimeric chelating peptoids for selective metal coordination. Chemical Science. (2019) DOI: 10.1039/C9SC01068H.

[31]  G.J.-P. Deblonde, T.D. Lohrey, R.J. Abergel. Inducing selectivity and chirality in group IV metal coordination with high-denticity hydroxypyridinones. Dalton Transactions. (2019) DOI: 10.1039/C9DT01031A.

[30]  G.J.-P. Deblonde, D. Bengio, D. Beltrami, S. Bélair, G. Cote, A. Chagnes. Niobium and tantalum processing in oxalic-nitric media: Nb2O5·nH2O and Ta2O5·nH2O precipitation with oxalates and nitrates recycling , Separation and Purification Technology. (2019) DOI: 10.1016/j.seppur.2019.05.087

[29]  G.J.-P. Deblonde, D. Bengio, D. Beltrami, S. Bélair, G. Cote, A. Chagnes. A fluoride-free liquid-liquid extraction process for the recovery and separation of niobium and tantalum from alkaline leach solutions, Separation and Purification Technology. 215 (2019) 634–643. DOI:10.1016/j.seppur.2019.01.052.

[28]  G.J.-P. Deblonde, T.D. Lohrey, C.H. Booth, K.P. Carter, B.F. Parker, Å. Larsen, R. Smeets, O.B. Ryan, A.S. Cuthbertson, R.J. Abergel. Solution Thermodynamics and Kinetics of Metal Complexation with a Hydroxypyridinone Chelator Designed for Thorium-227 Targeted Alpha Therapy, Inorganic Chemistry. (2018). DOI:10.1021/acs.inorgchem.8b02430.

[27]  A. Muller, G.J.-P. Deblonde, P. Ercius, R.J. Abergel, A.M. Minor. Electron Energy Loss Spectroscopy of Actinides at the Nanogram Scale, Microscopy and Microanalysis. 24 (2018) 444–445. DOI:10.1017/S1431927618002714.

[26]  A.K.R. Junker, G.J.-P. Deblonde, R.J. Abergel, T.J. Sørensen. Investigating subtle 4f vs. 5f coordination differences using kinetically inert Eu(III), Tb(III), and Cm(III) complexes of a coumarin-appended 1,4,7,10-tetraazacyclododecane-1,4,7-triacetate (DO3A) ligand, Dalton Transactions. 47 (2018) 7362–7369. DOI:10.1039/C8DT01547C.

[25]  M.P. Kelley, G.J.-P. Deblonde, J. Su, C.H. Booth, R.J. Abergel, E.R. Batista, P. Yang. Bond Covalency and Oxidation State of Actinide Ions Complexed with Therapeutic Chelating Agent 3,4,3-LI(1,2-HOPO), Inorganic Chemistry. 57 (2018) 5352–5363. DOI:10.1021/acs.inorgchem.8b00345.

[24]  J.A. Rees*, G.J.-P. Deblonde*, D.D. An*, C. Ansoborlo, S.S. Gauny, R.J. Abergel. Evaluating the potential of chelation therapy to prevent and treat gadolinium deposition from MRI contrast agents, Scientific Reports. 8 (2018). DOI:10.1038/s41598-018-22511-6. *Co-first authors.

[23]  G.J.-P. Deblonde, M.P. Kelley, J. Su, E.R. Batista, P. Yang, C.H. Booth, R.J. Abergel. Spectroscopic and Computational Characterization of Diethylenetriaminepentaacetic Acid/Transplutonium Chelates: Evidencing Heterogeneity in the Heavy Actinide(III) Series, Angewandte Chemie International Edition. 57 (2018) 4521–4526. DOI:10.1002/anie.201709183.

[22]  G.J.-P. Deblonde, T.D. Lohrey, D.D. An, R.J. Abergel. Toxic heavy metal – Pb, Cd, Sn – complexation by the octadentate hydroxypyridinonate ligand archetype 3,4,3-LI(1,2-HOPO), New Journal of Chemistry. 42 (2018) 7649–7658. DOI:10.1039/C7NJ04559J.

[21]  R.J. Abergel, W.A. de Jong, G.J.-P. Deblonde, P.D. Dau, I. Captain, T.M. Eaton, J. Jian, M.J. van Stipdonk, J. Martens, G. Berden, J. Oomens, J.K. Gibson. Cleaving Off Uranyl Oxygens through Chelation: A Mechanistic Study in the Gas Phase, Inorganic Chemistry. 56 (2017) 12930–12937. DOI:10.1021/acs.inorgchem.7b01720.

[20]  P. Ribagnac, G.J.-P. Deblonde, S.B. Blancher, L. Lengagne, L. Donati, C. Malimba, B. Courtaud, V. Weigel, D. Beltrami. Leaching of niobium- and REE-bearing iron ores: Significant reduction of H2SO4 consumption using SO2 and activated carbon, Separation and Purification Technology. 189 (2017) 1–10. DOI:10.1016/j.seppur.2017.07.073.

[19]  B. De Cock, N. Delaunay, G. Deblonde, V. Bosi, L. Pasti, D. Mangelings, Y. Vander Heyden. Kinetic study of niobium and tantalum hexameric forms and their substituted ions by capillary electrophoresis in alkaline medium, Talanta. 175 (2017) 127–134. DOI:10.1016/j.talanta.2017.07.025.

[18]  B. De Cock, J.D. Oliver, N. Delaunay, G. Deblonde, D. Mangelings, Y. Vander Heyden. Interinstrumental transfer of a fast short-end injection capillary electrophoresis method: Application to the separation of niobium, tantalum, and their substituted ions: CE and CEC, Electrophoresis. 38 (2017) 2069–2074. DOI:10.1002/elps.201700094.

[17]  G.J.-P. Deblonde, M. Sturzbecher-Hoehne, P.B. Rupert, D.D. An, M.-C. Illy, C.Y. Ralston, J. Brabec, W.A. de Jong, R.K. Strong, R.J. Abergel. Chelation and stabilization of berkelium in oxidation state +IV, Nature Chemistry. 9 (2017) 843–849. DOI:10.1038/nchem.2759.

[16]  G.J.-P. Deblonde, A. Chagnes, M.-A. Roux, V. Weigel, G. Cote. Extraction of Nb(V) by quaternary ammonium-based solvents: toward organic hexaniobate systems, Dalton Transactions. 45 (2016) 19351–19360. DOI:10.1039/C6DT03873E.

[15]  I. Captain, G.J.-P. Deblonde, P.B. Rupert, D.D. An, M.-C. Illy, E. Rostan, C.Y. Ralston, R.K. Strong, R.J. Abergel. Engineered Recognition of Tetravalent Zirconium and Thorium by Chelator–Protein Systems: Toward Flexible Radiotherapy and Imaging Platforms, Inorganic Chemistry. 55 (2016) 11930–11936. DOI:10.1021/acs.inorgchem.6b02041.

[14]  G.J.-P. Deblonde, R.J. Abergel. Active actinium, Nature Chemistry. 8 (2016) 1084–1084. DOI:10.1038/nchem.2653.

[13]  G.J.-P. Deblonde, C. Coelho-Diogo, A. Chagnes, G. Cote, M.E. Smith, J.V. Hanna, D. Iuga, C. Bonhomme. Multinuclear Solid-State NMR Investigation of Hexaniobate and Hexatantalate Compounds, Inorganic Chemistry. 55 (2016) 5946–5956. DOI:10.1021/acs.inorgchem.6b00345.

[12]  G.J.-P. Deblonde, V. Weigel, Q. Bellier, R. Houdard, F. Delvallée, S. Bélair, D. Beltrami. Selective recovery of niobium and tantalum from low-grade concentrates using a simple and fluoride-free process, Separation and Purification Technology. 162 (2016) 180–187. DOI:10.1016/j.seppur.2016.02.025.

[11]  G.J.-P. Deblonde, A. Chagnes, G. Cote, J. Vial, I. Rivals, N. Delaunay. Development of a capillary electrophoresis method for the analysis in alkaline media as polyoxoanions of two strategic metals: Niobium and tantalum, Journal of Chromatography A. 1437 (2016) 210–218. DOI:10.1016/j.chroma.2016.01.075.

[10]  G.J.-P. Deblonde, A. Chagnes, V. Weigel, G. Cote. Direct precipitation of niobium and tantalum from alkaline solutions using calcium-bearing reagents, Hydrometallurgy. 165 (2016) 345–350. DOI:10.1016/j.hydromet.2015.12.009.

[9]  D. Beltrami, G.J.-P. Deblonde, S. Bélair, V. Weigel. Recovery of yttrium and lanthanides from sulfate solutions with high concentration of iron and low rare earth content, Hydrometallurgy. 157 (2015) 356–362. DOI:10.1016/j.hydromet.2015.07.015.

[8]  G.J.-P. Deblonde, N. Delaunay, D. Lee, A. Chagnes, G. Cote, P. Gareil. First investigation of polyoxoniobate and polyoxotantalate aqueous speciation by capillary zone electrophoresis, RSC Advances. 5 (2015) 64119–64124. DOI:10.1039/C5RA11521C.

[7]  G.J.-P. Deblonde, A. Chagnes, S. Bélair, G. Cote. Solubility of niobium(V) and tantalum(V) under mild alkaline conditions, Hydrometallurgy. 156 (2015) 99–106. DOI:10.1016/j.hydromet.2015.05.015.

[6]  G.J.-P. Deblonde, A. Moncomble, G. Cote, S. Bélair, A. Chagnes. Experimental and computational exploration of the UV-visible properties of hexaniobate and hexatantalate ions, RSC Advances. 5 (2015) 7619–7627. DOI:10.1039/C4RA14866E.

[5]  M. Sturzbecher-Hoehne, G.J.-P. Deblonde, R.J. Abergel. Solution thermodynamic evaluation of hydroxypyridinonate chelators 3,4,3-LI(1,2-HOPO) and 5-LIO(Me-3,2-HOPO) for UO2(VI) and Th(IV) decorporation, Radiochimica Acta. 101 (2013) 359–366. DOI:10.1524/ract.2013.2047.

[4]  G.J.-P. Deblonde, M. Sturzbecher-Hoehne, R.J. Abergel. Solution Thermodynamic Stability of Complexes Formed with the Octadentate Hydroxypyridinonate Ligand 3,4,3-LI(1,2-HOPO): A Critical Feature for Efficient Chelation of Lanthanide(IV) and Actinide(IV) Ions, Inorganic Chemistry. 52 (2013) 8805–8811. DOI:10.1021/ic4010246.

[3]  G.J.-P. Deblonde, M. Sturzbecher-Hoehne, A.B. Mason, R.J. Abergel. Receptor recognition of transferrin bound to lanthanides and actinides: a discriminating step in cellular acquisition of f-block metals, Metallomics. 5 (2013) 619. DOI:10.1039/c3mt20237b. Cover highlight.

[2]  M. Sturzbecher-Hoehne, C. Goujon, G.J.-P. Deblonde, A.B. Mason, R.J. Abergel. Sensitizing Curium Luminescence through an Antenna Protein To Investigate Biological Actinide Transport Mechanisms, Journal of the American Chemical Society. 135 (2013) 2676–2683. DOI:10.1021/ja310957f.

[1]  S. Michaud, M. Miguirditchian, G. Deblonde, B. Dinh, X. Hérès, G. Andreoletti. Modelling of Thorium Extraction by TBP, Procedia Chemistry. 7 (2012) 251–257. DOI:10.1016/j.proche.2012.10.041.

Patent List

[4]  Separation of metal ions by liquid-liquid extraction. G.Deblonde, R.K. Strong, R.J. Abergel. WO2018097871A4. 2018.

[3]  Chelating platform for delivery of radionuclides. R.K. Strong, P. Rupert, R.J. Abergel, I. Captain, G.J.-P. Deblonde. WO2018044812A2. 2018.

[2]  Formulations and treatments employing hydroxypyridonate actinide/lanthanide decorporation agents. R.J. Abergel, G.J.-P. Deblonde. WO2017192581A1. 2017.


Reviewer for the Following Journals

Critical Reviews in Environmental Science and Technology; Colloids and Surfaces A: Physicochemical and Engineering Aspects; Dalton Transactions; Geochimica et Cosmochimica Acta; Hydrometallurgy; Inorganic Chemistry; Industrial & Engineering Chemistry Research; Journal of chromatography A; Journal of Hazardous Materials; Journal of luminescence; Journal of Nuclear Energy Science & Power Generation Technology; Journal of Physics and Chemistry of Solids; Metallomics; Minerals; Minerals Engineering; Mineral Processing and Extractive Metallurgy Review; New Journal of Chemistry; Separation and Purification Technology; Waste Management