The research group is interested in Soft matter systems like colloids, polymers or liquid crystals, with special emphasis on out equilibrium conditions, when external field or forces act over the systems. In particular, at the present we are working on the following topics:
Artificial colloidal ice.
Propulsion in viscous fluids.
Ratchet transport.
Realization of shape-anisotropic field responsive particles.
Colloids in periodic potentials.
Pietro Tierno (Full Professor and ERC Consolidator Grant) ptierno(at)ub.edu
Overcrowding induces fast colloidal solitons in a slowly rotating potential landscape. Cereceda-López E.; Antonov A.P.; Ryabov A.; Maass P.; Tierno P. 2023, Nature Communications, 14 , 1, 6448. Doi: 10.1038/s41467-023-41989-x
Unveiling the Rolling to Kayak Transition in Propelling Nanorods with Cargo Trapping and Pumping. Junot G.; Calero C.; García-Torres J.; Pagonabarraga I.; Tierno P. 2023, Nano Letters, 23, 3. Doi: 10.1021/acs.nanolett.2c03897
Large Scale Zigzag Pattern Emerging from Circulating Active Shakers. Junot G.; De Corato M.; Tierno P. 2023, Physical Review Letters, 131, 6, 068301. Doi: 10.1103/PhysRevLett.131.068301
Geometrical control of topological charge transfer in Shakti-Cairo colloidal ice. Rodríguez-Gallo C.; Ortiz-Ambriz A.; Nisoli C.; Tierno P. 2023, Communications Physics, 6, 1, 113. Doi: 10.1038/s42005-023-01236-7
Friction Induces Anisotropic Propulsion in Sliding Magnetic Microtriangles. Junot G., Leyva S.G., Pauer C., Calero C., Pagonabarraga I., Liedl T., Tavacoli J., Tierno P. Nano Letters 22, 18, 7408, 2022
Hydrodynamic synchronization and clustering in ratcheting colloidal matter. Leyva, S.G., Stoop, R.L., Pagonabarraga, I., Tierno, P. Science Advances, 8, 23, eabo4546, 2022
Dynamics and interactions of magnetically driven colloidal microrotors. Hernández, R.J.H., Fischer, T.M., Tierno, P. Applied Physics Letters, 120(8), 081601, 2022
Thermally active nanoparticle clusters enslaved by engineered domain wall traps. Tierno P., Johansen T.H., Straube A.V. Nature Communications. 2021, 12, 5813
Degeneracy and hysteresis in a bidisperse colloidal ice. Rodríguez-Gallo C., Ortiz-Ambriz A., Tierno P. Physical Review Research. 2021, 3, 4, 43023
Collective hydrodynamic transport of magnetic microrollers. Junot G., Cebers A., Tierno P. Soft Matter. 2021, 17, 38
Topological Boundary Constraints in Artificial Colloidal Ice. Rodríguez-Gallo C., Ortiz-Ambriz A., Tierno P. Physical Review Letters. 2021, 126, 18, 188001
Collective Directional Locking of Colloidal Monolayers on a Periodic Substrate. Stoop R.L., Straube A.V., Johansen T.H., Tierno P. Physical Review Letters. 2020, 124(5), 058002
Emergent collective colloidal currents generated via exchange dynamics in a broken dimer state. Massana-Cid H., Ortiz-Ambriz A., Vilfan A., Tierno P. Science Advances. 2020, 6(10), eaaz2257
Colloquium: Ice rule and emergent frustration in particle ice and beyond. Ortiz-Ambriz A., Nisoli C., Reichhardt C., Reichhardt C.J.O., Tierno P. Reviews of Modern Physics. 2019, 91(4), 041003
Tunable self-healing of magnetically propelling colloidal carpets. Massana-Cid H., Meng F., Matsunaga D., Golestanian R., Tierno P. Nature Communications. 2019, 10(1) 2444
ENgineering FrustratiOn in aRtificial Colloidal icEs: degeneracy, exotic lattices and 3D states (ENFORCE). ERC CONSOLIDATOR GRANT. IP: Pietro Tierno. (2020-2024)
Ajut per incentivar i consolidar la recerca d’excel·lència ja existent a les universitats públiques de Catalunya. Programa ICREA Academia 2018. IP: Pietro Tierno. 2019-2023
ENgineeringFRustrated states in Colloidal artificial ices: thermalization,
manipulation and 3D states (ENFoRCe) From MEC: ACCIONES DE DINAMIZACIÓN
«EUROPA EXCELENCIA» – CONVOCATORIA 2018, Proj. ERC2018-092827. IP: Pietro Tierno (2018 – 2019)
Dynamics and assemblies of colloidal particles under Magnetic and Optical forces (DynaMO)” ERC Starting Grant from European Research Council. PI: Pietro Tierno (2014 – 2018)
Magnetically Actuated BIO-inspired metaMATERials (ABIOMATER). Call H2020-FETOPEN-2014-2015-RIA “Future and Emerging Technologies: FETOPEN”); PI Spanish node with F. Sagués and I. Pagonabarraga. Coordinator: Feodor Ogrin (UK) (2016 – 2018)