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Associate researchers

Samuel Baltazar Rojas

Phone(s): (56-2) 7183412
Edificio de Investigación Rector Eduardo Morales Santos, Universidad de Santiago de Chile.
Av. Lib. Bernardo O´Higgins 3363, Estación Central, Santiago, Chile.

Current Occupation

  • Researcher.

Professional Degree

  • Licentiate in Physics (PUC, Chile), Master in Applied Sciences (IPICyT, Mexico).
  • Doctor in Applied Sciences Nanoscience and nanotechnology (IPICyT, Mexico).

Research Areas

  • Materials science, Nanoscience and Nanotechnology, Microelectronics.


  • Study and Aplications of nanoparticles in polymeric matrices, and in the removal of contaminants. PBCT-CONICYT: 79090022 (2010).

Conferences (2006 to date)

  • XLVI National Congress of Physics, Mexican Physical Society, October 27-31 (2003), Merida, Mexico.
Poster session: A new road to ferrocene dissociation S. E. Baltazar, A. L. Elıas, J. A. Rodrıguez-Manzo, H. Terrones, M. Terrones, A. H. Romero.
  • Frontiers in Materials Research, IAM-CIMAT-CONICYT Workshop, April 26-29 (2004), Vi˜na del mar, Chile.
Poster session: Production and characterization of ferromagnetic alloyed nanowires inside carbon nanotubes, A. L. Elıas, J. A. Rodrıguez-Manzo, A. Zamudio, S. E. Baltazar, F. Lopez-Urıas, E. Mu˜noz-Sandoval, H. Terrones, M. Terrones, M. R.McCartney, D. J.Smith, D. Golberg, C. H. Tang, Y. Bando.
  • Fifth International Conference on the Science and Application of Nanotubes, July 19-24 (2004), San Luis Potosı, Mexico.
Poster session:Carbon nanotube/Polymer composite from ATRP polystyrene grafted CNx MWNT, B. Fragneaud, K. Massinelliy-Varlot, A. Gonzales-Montiel, M. Terrones, J. Y. Cavaille, A. L. Elıas, J. A. Rodrıguez Manzo, A. Zamudio, S. E. Baltazar, H. Terrones.
  • Fifth International Conference on the Science and Application of Nanotubes, July 19-24 (2004), San Luis Potosı, Mexico.
Poster session: SWCNTs under pressure, S. E. Baltazar, A. H. Romero, R. Martonak.
  • MRS Fall Meeting, November 29 – December 3 (2004), Boston, USA.
Poster sessionProduction and Characterization of Ferromagnetic Alloyed-Nanowires inside Carbon Nanotubes Ana Laura Elias A., Julio A. Rodriguez Manzo, Adalberto Zamudio, Samuel E. Baltazar, Florentino Lopez Urias, Emilio Munoz Sandoval, Humberto Terrones, Mauricio Terrones, Molly McCartney, David J. Smith, Dmitri Golberg, Chengchun Tang and Yoshio Bando.
  • Nanotechnology Workshop, February 16-19 (2005), Guanajuato, Mexico.
Poster session: Carbon Nanostructures under pressure, S. E. Baltazar, A. H. Romero, Jose Luis Rodrıguez-Lopez, H. Terrones and R. Martonak.
  • PASI conference, Tools and techniques in nanosciences, June 19-30 (2006), San Jose, Costa.
Rica Talk presentation: Eletronic transport in mesoscopic systems.
  • S. E. Baltazar, Aldo H. Romero, Martın E. Garcıa and Mario de Menech.
Poster session: Influence of N, B, S and P in graphene sheet. A. Garcıa, S. E. Baltazar, A. H. Romero and J. F. Perez Robles.
  • 71. Annual Meeting of the Deutsche Physikalische Gesellschaft, March (2007), Regensburg, Germany.
Poster session: Influence of bonding on the IV-characteristics of Si29H24 and organic molecules on Si surfaces. S. E. Baltazar, D. Jarukanont, Ulf Saalman, Aldo H. Romero, Martın E. Garcıa and Mario de Menech.
  • 72. Annual Meeting of the Deutsche Physikalische Gesellschaft, February (2008), Berlin, Germany.
Poster session: Spin-polarized current through organic molecules. D. Jarukanont, S. E. Baltazar, A. Kalitsov, Martın E. Garcıa.


  1. M. Ramírez, R.I. González, S.E. Baltazar, J. Rojas-Nunez, S. Allende, J.A. Valdivia, J. Rogan, M. Kiwi, F.J. Valencia
    Thermal stability of aluminum oxide nanoparticles: role of oxygen concentration
    Inorg. Chem. Front., 2019,6, 1701-1706

  1. J. Rojas-Nunez, R.I. Gonzalez, E.M. Bringa, S. Allende, P. Sepúlveda, N. Arancibia-Miranda, S.E. Baltazar
    Toward Controlled Morphology of FeCu Nanoparticles: Cu Concentration and Size Effects
    J. Phys. Chem. C, 2018, 122 (15), pp 8528–8534
  2. P. Sepúlveda, M.A. Rubio, S.E. Baltazar, J. Rojas-Nunez, J.L. Sánchez Llamazares, A. García Garcia, N. Arancibia-Miranda
    As(V) removal capacity of FeCu bimetallic nanoparticles in aqueous solutions: The influence of Cu content and morphologic changes in bimetallic nanoparticles
    Journal of Colloid and Interface Science 524, 177-187 (2018)

  1. N. Arancibia-Miranda, S.E. Baltazar, A. García, D. Muñoz-Lira, P. Sepúlveda, M.A. Rubio, D. Altbir
    Nanoscale zero valent supported by Zeolite and Montmorillonite:Template effect of the removal of lead ion from an aqueous solution
    Journal of Hazardous Materials 301 (2016) 371–380; Published 15 Jan 2016

  1. N. Arancibia-Miranda, S.E. Baltazar, A. García, A.H. Romero, M.A. Rubio, D. Altbir
    Lead removal by nano-scale zero valent iron: surface analysis and pH effect
    Materials Research Bulletin 59 (2014) 341-348; Published Nov 2014
  2. S. Castillo-Sepúlveda, N.M. Vargas, R. Escobar, S. Allende, S. BaltazarD. Altbir
    Reversal modes in small rings: Signature on the susceptibility
    J. Appl. Phys. 115, 223903 (2014); Published 14 Jun 2014
  3. S. Baltazar, A. García, A.H. Romero, M.A. Rubio, N. Arancibia-Miranda, D. Altbir
    Surface rearrangement of nanoscale zerovalent iron: the role of pH and its implications in the kinetics of arsenate sorption
    Environmental Technology, 2014 Vol. 35, No. 18, 2365–2372; Published (web) 8 Apr 2014

  1. H. Sellier, B. Hackens, M. G. Pala, F. Martins, S. Baltazar, X. Wallart, L. Desplanque, Bayot V, S. Huant
    On the imaging of electron transport in semiconductor quantum structures by scanning gate microscopy: success and limitations
    Semiconductor Science and Technology 26, 64008
  2. F. Martins,B. Hackens, H. Sellier, P. Liu, M. G. Pala, S. Baltazar, L. Desplanque, X. Wallart, Bayot V, S. Huant
    Scanning-Gate Microscopy of Semiconductor Nanostructures: an Overview
    Acta Physica Polonica A 119, 569-575

  1. M. G. Pala, S. Baltazar, P. Liu, H. Sellier, F. Martins, Bayot V, X. Wallart, L. Desplanque, S. Huant
    Transport inefficiency in branched-out mesoscopic networks: An analog of the Braess paradox Evidence
    Physical Review Letters 108, 076802; Published 13 February 2012


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