updated at 22:03:41 on 28/6/2008 Ph.D. María Tirado-Miranda Lecturer Department of Applied Physics Faculty of Sciences (Google Earth) University of Granada Campus de Fuentenueva s/n 18071 Granada (Spain) Tel: +34-958246104 Fax: +34-958243214 E-mail: mtirado@ugr.es

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NEWS: the III Reunión Ibérica de Coloides e Interfases (RICI³) and VIII Reunión del Grupo Especializado de Coloides e Interfases (VIIIGECI) will be held in Granada, 13-15th July 2009

• October-2001: Doctor of Philosophy in Physics by University of Granada (Spain). Aggregation of Surface-Modified Colloidal Particles (Spanish, 11 MB)
• 1999: DEA in Applied Physics by University of Granada.
• 1996-1998: Doctorate Studies in Applied Physics by University of Granada.
• 1997: Master Thesis in Applied Physics by University of Granada.
• 1990-1995: Graduate in Physics Sciences by University of Granada.

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• From 15/10/2004: Assistant profesor in the Department of Applied Physics of University of Granada.
• 26/10/2001-14/10/2004: Assistant profesor in the Department of Physics of University of Extremadura (Cáceres).
• 17/01/2001-30/09/2001: Assistant profesor in the Department of Physics of University of Extremadura (Badajoz).
• 01/09/1995-31/10/2000: Ph.D. granted student in the Biocolloid and Fluid Physics Group of the Department of Applied Physics of University of Granada.

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Light Scattering Techniques Applied to Colloidal Aggregation (.PPS)

Considerable interest has been focused on the study of dynamic structures, in which an irreversible addition of subunits leads to cluster formation. The aggregation of colloidal particles is a good model for studying this structure formation phenomenon, which can be described by the time evolution of the cluster-size distribution. Determining the detailed cluster-size distribution is important since many of the physical properties of a colloid depend on that distribution. Powerful light scattering techniques have been successfully used to determine these cluster-size distributions. In this study, static and dynamic light scattering were used to detect the size distributions of aggregating colloidal dispersions. Dynamic light scattering allows to obtain the mean diffusion coefficients of the aggregates and their mean hydrodynamic radius. Static light scattering assesses the internal structure of aggregates by measuring the angular dependence of the scattered light. Either of these techniques has proven to be a very suitable tool to study aggregation processes without perturbing the aggregating system.

1. Projects Participation
   • Excellence research project (Junta de Andalucia, ref. FQM-02517) entitled "Complex fluids confined in curved interfaces" (01/2008-12/2010).
   • Industrial project of technological development (CDTI, ref. IDI-200700509) entitled "Reactivos de inmuno-cromatografía para cuantificación y aumento de sensibilidad" (25/07/2007-24/07/2009).
   • Research project of the national programme PETRI (MEC, ref. PET2005_0548_00) entitled "Influencia del tratamiento térmico en la capacidad impermeabilizante de las emulsiones de parafina" (19/12/2006-18/12/2008)
   • Research project of the national programme of materials (MEC, ref. MAT2006-12918-C05-01) entitled "Propiedades eléctricas, estructurales y dinámicas de dispersiones de nanopartículas con aplicaciones biotecnológicas" (01/10/2006-30/09/2009).
   • Excelence research project (Junta de Andalucía, ref. FQM-392) de la convocatoria 2005 entitled "Estructuras y propiedades de sistemas coloidales en 2- y 3-D" (01/01/2006-31/12/2008)
   • Research project of the national programme of materials (MEC, ref. MAT2006-13646-C03-03) entitled "Materiales de aplicación nano y biotecnológica: tribo-reología de fluidos magnéticos" (01/10/2006-30/09/2009).
   • Research project of the national programme of materials (MEC, ref. MAT2003-08356-C04-04) entitled "Nuevas estructuras coloidales con materiales nanoparticulados" (2003-2006).
   • Research project of the national programme of materials (MEC, ref. MAT2000-1550-C03-03) entitled "Estabilidad, agregación y propiedades dieléctricas de dispersiones coloidales: Aplicación a sistemas densos" (2000-2003).
2. International Publications
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Experimental study of fractal aggregation by static and dynamic light scattering, Progress in Colloid and Polymer Science,104,138-140, 1997
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Experimental Evidence of rearrangement in fractal clusters, Progress in Colloid and Polymer Science, 110,110-113, 1998
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Colloidal Clusters with Finite Binding Energies: Fractal Structure and Growth Mechanism, Langmuir, 15,3437-3444, 1999
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Dynamic scaling and fractal structure of small colloidal clusters, Colloids Surf. A: Physicochem. Eng. Aspects, 162,67-73, 2000
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Test of the Physical Interpretation of the Structural Coefficient for Colloidal Clusters, Langmuir, 16,7541-7544, 2000
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Influence of Surface Characterizing on fast aggregating Protein coated polymer Colloid, Progress in Colloid and Polymer Science, 118,285-289, 2001
   • G. Odriozola, M. Tirado-Miranda, A. Schmitt, F. Martínez-López, J. Callejas-Fernández, R. Martínez-García and R. Hidalgo-Álvarez, A Light Scattering Study of the Transition Region between Diffusion- and Reaction-Limited Cluster Aggregation, Journal of Colloid and Interface Science, 240,90-96, 2001
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Clustering under short-range finite interactions, Physical Review E, 67,011402-1-011402-9, 2003
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, The aggregation behaviour of protein coated particles: a light scattering study, Eur. Biophys. J., 32,128-136, 2003
   • M. Tirado-Miranda, C. Haro-Pérez, M. Quesada-Pérez, J. Callejas-Fernández and R. Hidalgo-Álvarez, Effective charges of colloidal particles obtained from collective diffusion experiments, J. Colloid Interface Sci., 263,74-79, 2003
   • A. Moncho-Jordá, G. Odriozola, M. Tirado-Miranda, A. Schmitt and R. Hidalgo-Álvarez, Modelling the aggregation of partially covered particles: Theory and simulation, Physical Review E, 68,011404-1-011404-12, 2003
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Aggregation of protein-coated colloidal particles: Interaction energy, cluster morphology, and aggregation kinetics, J. Chem. Phys., 119,9251-9259, 2003
   • M. Tirado-Miranda, M.A. Rodríguez-Valverde, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Structural Coefficient in Aggregates of Protein Coated Colloidal Particles, Colloids Surf. A: Physicochem. Eng. Aspects, 270-271 (2005) 309-316
   • F. Martínez-Pedrero, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Aggregation of magnetic polystyrene particles. A light scattering study, Colloids Surf. A: Physicochem. Eng. Aspects, 270-271 (2005) 317-322
   • F. Martínez-Pedrero, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Forming chainlike filaments of magnetic colloids: The role of the relative strength of isotropic and anisotropic particle interactions, J. Chem. Phys., 125,084706-084716, 2006
   • F. Martínez-Pedrero, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Structure and stability of aggregates formed by electrical double-layered magnetic particles, Colloids Surf. A: Physicochem. Eng. Aspects, 306 (2007) 158-165
   • F. Martínez-Pedrero, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Formation of magnetic filaments: A kinetic study, Physical Review E, 76,011405-1011405-9, 2007
   • F. Martínez-Pedrero, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Controlling the magnetic filaments length by tuning the particle interactions, J. Colloid Interface Sci., 318, 23-28, 2008
   • F. Martínez-Pedrero, A. El-Harrak, J. C. Fernández-Toledano, M. Tirado-Miranda, J. Baudry, A. Schmitt, J. Bibette and J. Callejas-Fernández, Kinetic study of coupled field-induced aggregation and sedimentation processes arising in magnetic fluids, Physical Review E, Accepted, 2008
3. Book Chapters
   • J. Callejas-Fernández, M. Tirado-Miranda, M. Quesada-Pérez, G. Odriozola-Prego and A. Schmitt, Photon Spectroscopy of Colloids, Enciclopedia of Surface & Colloid Science (I.S.B.N.: 0-8247-0633-1), 4072-4089, 2002, Marcel Dekker, In, New York / EEUU
   • G. Odriozola-Prego, M. Tirado-Miranda, A. Schmitt and J. Callejas-Fernández, Colloidal aggregation processes, Enciclopedia of Surface & Colloid Science (I.S.B.N.: 0-8247-0633-1), 2004, Marcel Dekker, In, New York / EEUU
4. National Publications
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Cómo iluminar la invisible y ver algo: estructura fractal coloidal, Coloides e Interfases (I.S.B.N.: 84-8138-250-7), 227-234, 1997, Universidad de Alcalá, Madrid / España
   • J. Callejas-Fernández, M. Tirado-Miranda, A. Schmitt and A. Fernández-Barbero, Measuring the fractal dimension of colloidal aggregates, Anales de Física, 94,73-78, 1998
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Agregación de nanopartículas de poliestireno estabilizadas electroestéricamente, Coloides e Interfases. Estado Líquido (I.S.B.N.: 84-8240-191-2), 397-412, 1999, Universidad de Almería
   • M. Tirado-Miranda, A. Schmitt, J. Callejas-Fernández and A. Fernández-Barbero, Agregación coloidal en presencia de albúmina de suero bovino: influencia del grado de recubrimiento, Boletín de la Sociedad Española de Cerámica y Vidrio, 39 [4],419-423, 2000
   • Doscientos años de Meniscos Líquidos: 1805-2005, M.A. Rodríguez Valverde y M. Tirado Miranda. Revista Española de Física 20(3), 51-56 Notas Históricas, (2006).

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• Temas de Física, J.M. Barrigón Morillas, F.J. Carmona del Río, V. Gómez Escobar, J.A. Méndez Sierra, M. Tirado Miranda, J. Vaquero Martínez, R. Vílchez Gómez. ISBN 84-923216-4-4, Madrid, 2002.
• Teaching Innovation project (University of Granada) entitled "Science's 10 most beautiful experiments" (2004).
• Fundamentos Físicos de la Arquitectura (Spanish)

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• Rute
• Miguex's webpage

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