Complex Fluids Group

PUBLICATIONS (download just for personal use)

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	Ricky F. L�pez-Santiago, Jorge Delgado, Rolando Castillo Competition among physical, chemical, and hybrid gelation mechanisms in biopolymers. Soft Matter (2024).
	N. C. Palmero-CruzSol, M. Hern�ndez-Hern�ndez, R. Castillo, E. Sarmiento. Distribution of cage size smooths the transition from diffusive to caging in microrheology Molecular Physics (2023).
	Natalia Rinc�n-Londo�o, Alberto S. Luviano, Antonio Tavera-V�zquez, Susana Figueroa-Gerstenmaier and Rolando Castillo Synergistic effect of a fluorinated azobenzene for transforming spherical micelles into thread-like micelles with a disk-like cross-section J. Molecular Liquids 390 (2023) 123066
	Ricky F L�pez-Santiago, Jorge Delgado and Rolando Castillo Micellar entanglement and its relation to the elastic behavior of wormlike micelle fluids J. Colloid Interface Sci. 626 (2022) 1015-1027
	Antonio Tavera-V�zquez, Natalia Rinc�n-Londo�o, Ricky F L�pez-Santiago and Rolando Castillo Measuring mesoscopic scales in complex fluids embedded with giant cylindrical micelles with diffusing wave spectroscopy. Review. J. Phys. Condens. Matter 34 (2022) 034003 (https://doi.org/10.1088/1361-648X/ac2c3e)
	Zenaida Brice�o-Ahumada, J.F.A. Soltero-Mart�nez, Rolando Castillo Aqueous foams and emulsions stabilized by mixtures of silica nanoparticles and surfactants: A state-of-the-art. Review. Chemical Engineering Journal Advances 7 (2021) 100116
	Natalia Rinc�n-Londo�o, Cristina Garza, Nuria Esturau-Escofet, Anna Kozina, and Rolando Castillo Selective incorporation of the isomers of a photoswitchable molecule in wormlike micelles. Colloids and Surfaces A: Physicochemical and Enginneering Aspects 610 (2021) 125903
	Virginia Carrasco-Fadanelli and Rolando Castillo Measurement of the capillary interaction force between Janus colloidal particles trapped at a flat air/water interface. Soft Matter, 2020,16, 5910 Communication
	Brisa Arenas-G�mez; Cristina Garza; Yun Liu and Rolando Castillo Alignment of Worm-like micelles at intermediate and high shear rates. Journal of Colloid and Interface Science. 560 (2020) 618�625
	PhD. Thesis. Victoria Carrasco Fadanelli Capillary interactions between colloidal particle at water/air interfaces. 2020
	Ms. Thesis. Ricky Frank L�pez Santiago Formaci�n de bandas en direcci�n del gradiente con micelas tubulares e inestabilidades el�stico-inerciales. 2020
	PhD. Thesis. Natalia Rinc�n-Londo�o Estudio fisicoquimico acerca de la interacci�n entre interruptores moleculares y micelas tubulares constituidas por surfactantes cati�nicos o zwiterionicos 2020
	Luviano, A; Campos-Ter�n J;Langevin, D; Castillo, R; Espinosa, G. Mechanical properties of DPPC-POPE mixed Langmuir monolayers. Langmuir 2019, 35, 16734-16744.
	N. Rinc�n-Londo�o, A. Tavera-V�zquez, C. Garza, N. Esturau-Escofet, A. Kozina, and R. Castillo Structural Changes in Worm-Like Micelles on the Incorporation of Small Photo-Switchable Molecules. J. Phys. Chem. B 2019, 123, 9481-9490
	V. Carrasco-Fadanelli and R. Castillo Measurement of the force between uncharged colloidal particles trapped at a flat air/water interface. Soft Matter, 2019, 15, 5815.
	PhD. Thesis. Antonio Tavera-V�zquez Thread-like morphologies in complex fluids: a rheological, microrheological and structural study. Jan 2019.
	Antonio Tavera-V�zquez, Brisa Arenas-G�mez, Cristina Garza, Yun Liu, and Rolando Castillo Structure, Rheology, and Microrheology of Wormlike Micelles Made of PB-PEO Diblock Copolymers Soft Matter, 2018, 14, 7264
	Anna Kozina, Salvador Ramos, Pedro D�az-Leyva and Rolando Castillo Bilayers of Janus and homogeneous particle mixtures trapped at an air/water interface Soft Matter, 2018, 14, 2582
	Selmani, Atida; Tavera-Vazquez, Antonio; Garza, Cristina; Castillo, Rolando Tuning the Viscoelastic-Gel Transition of Single-Wall Carbon Nanotubes Embedded in pH-Responsive Polyelectrolyte Solutions J. Phys. Chem. B 2018, 122, 348-359
	Juan V. Escobar, Cristina Garza, and Rolando Castillo Measuring Adhesion on Rough surfaces using Atomic Force Microscopy with a Liquid Probe Beilstein J. Nanotechnol. 8, 813�825. 2017
	Blanca Delgado-Coello, Danai Montalvan-Sorrosa, Armando Cruz-Rangel, Marcela Sosa-Garrocho, Beatriz Hern�ndez-T�llez , Marina Mac�as-Silva, Rolando Castillo, Jaime Mas-Oliva Label-free surface-enhanced Raman spectroscopy of lipid-rafts from hepatocyte plasma membranes J. Raman Spectrosc. 2017, 48, 659�667
	PhD Thesis Danai Montalv�n Sorrosa Obtenci�n de biomateriales a partir del virus filamentoso fd 2016
	Laura C. Mugica, Braulio Rodr�guez-Molina, Salvador Ramos, Anna Kozina Surface functionalization of silica particles for their efficient fluorescence and stereo selective modification Colloids and Surfaces A: Physicochem. Eng. Aspects 500 (2016) 79�87
	A.Kozina, S. Ramos, P. Diaz-Leyva and R. Castillo Out-of equilibrium assembly of colloidal particles at air/water interface tuned by their chemical modification J. Phys. Chem. C 2016, 120, 16879-16886
	Juan V. Escobar, Rolando Castillo Force of Adhesion on Super-Solvophobic Surfaces: The Role of Capillary Necks Physical Review E 93,022804 (2016)
	D. Montalv�n-Sorrosa, J.L Gonz�lez-Sol�s, J. Mas-Oliva and R. Castillo Filamentous virus decoration with gold nanoparticles: Global fingerprints of bionanocomposites acquired with SERS RSC Adv. 2014, 4, 57329
	Erick Sarmiento-G�mez, Beatriz Morales-Cruzado, and Rolando Castillo Absorption effects in Diffusing Wave Spectroscopy Applied Optics (2014),53, 21, 4675-4682
	Brisa Arenas-G�mez, Marko Vincekovic, Cristina Garza and Rolando Castillo Worm-like Micelles in Water Solutions of 1, 4 Poly (1, 3-butadiene) � Polyethylene Oxide Diblock Copolymer Eur. Phys. J. E (2014) 37: 51.
	Paola Mendoza-Espinosa, Danai Montalv�n-Sorrosa, Victor Garc�a-Gonz�lez, Abel Moreno, Rolando Castillo, Jaime Mas-Oliva Microenvironmentally controlled secondary structure motifs of apoliprotein A-1 derived peptides Mol Cell Biochem (2014) 393:99�109
	Erick Sarmiento-Gomez, Iv�n Santamar�a-Holek, Rolando Castillo The Mean-Square Displacement of particles in Slightly Interconnected Polymer Networks J. Phys. Chem. B. 2014, 118, 1146-1158
	Juan V. Escobar and Rolando Castillo Force of adhesion upon loss of the contact angle hysteresis: When a liquid behaves like a solid. Physical Review Letters,111, 226102 (2013)
	Juan V Escobar, Cristina Garza, Juan Carlos Alonso, Rolando Castillo Super-mercuryphobic and hydrophobic diamond surfaces with hierarchical structures: vanishment of the contact angle hysteresis with mercury Applied Surface Science 273 (2013) 692�701
	PhD Thesis. Erick Sarmiento G�mez El Movimiento Browniano en Fluidos Complejos Embebidos con Estructuras Filiformes 2012
	Pilar Brocos, Paola Mendoza-Espinosa, Rolando Castillo, Jaime Mas-Oliva and Angel Pi�eiro Multiscale molecular dynamics simulations of micelles: coarse-grain for self-assembly and atomic resolution for finer details. Soft Matter, 2012, 8. 9005
	E. Sarmiento-Gomez, D.Montalvan-Sorrosa, C. Garza, J. Mas-Oliva, and R.Castillo Rheology and DWS Microrheology of Concentrated Suspensions of the Semiflexible Filamentous fd-Virus Eur. Phys. J. E (2012) 35: 35
	Suliman Barhoum, Rolando Castillo, and Anand Yethiraja Characterization of Dynamics and Internal Structure of a Mixed-Surfactant Wormlike Micellar System Using NMR and Rheometry Soft Matter, 2012, 8, 6950
	Jos� Campos-Ter�n, Paola Mendoza Espinosa, Jaime Mas and R. Castillo Conformational and Disorder to Order Transitions in Proteins: Structure / Function Correlation in Apolipoproteins Eds. Weibo Cai and Hao Hong. InTech (2012).
	S. Ramos; C. Garza; H.I. Beltran; J. Campos-Ter�n; J. Arenas-Alatorre and R. Castillo The cis-bis(decanoate)tin phthalocyanine/DPPC film at the air/water interface. Journal of Colloid & Interface Science 369 (2012) 256-266
	J. Campos-Ter�n, C. Garza, H. I. Beltr�n, R. Castillo Thin film formation at the air-Water interface and on solid substrates of soluble axial substituted cis-bis-decanoate tin phthalocyanine. Thin Solid Films. 520 (2012) 2211-2219
	E. Sarmiento-Gomez, J. M. Galvan-Miyoshi and R. Castillo A dynamical light scattering technique and its application in viscoelastic networks in soft matter. Proc. of SPIE, Vol. 8011, 801178 (2011). doi: 10.1117/12.902163
	David L�pez-D�az and Rolando Castillo Microrheology of Solutions Embedded With Thread-Like Supramolecular Structures Soft Matter, 2011, 7, 5926
	Erick Sarmiento-Gomez, David L�pez-D�az and Rolando Castillo Microrheology and Characteristic Lengths in Wormlike Micelles made of a Switterionic Surfactant and SDS in brine J. Phys. Chem. B 2010, 114, 12193
	Andrea Guti�rrez-Campos and Rolando Castillo Optical Trapping of Particles at the Air/water Interface for studies in Langmuir Monolayers Rev. Mex. F�s. 56, 4, 339-347 (2010).
	David L�pez-Diaz, Rolando Castillo The Wormlike Micellar Solution made of a Switterionic Surfactant (TDPS), an Anionic Surfactant SDS, and Brine in the Semidilute Regime J. Phys. Chem. B 2010, 114, 8917-8925
	David L�pez-Diaz, Erick Sarmiento-G�mez, Cristina Garza and Rolando Castillo A Rheological Study in the Dilute Regime of the Worm Micelle Fluid Made of Zwitterionic Surfactant (TDPS), Anionic Surfactant (SDS), and Brine J. of Colloid and Interface Science. 348 (2010) 152-158
	Andrea Guti�rrez-Campos, Grisell D�az, and Rolando Castillo Domain Growth, Pattern Formation, and Morphology Transitions in Langmuir Monolayers. A New Growth Instability J. Phys. Chem. B 2010, 114, 5034-5046
	Paola Mendoza-Espinosa, Victor Garc�a Gonz�lez, Abel Moreno, Rolando Castillo and Jaime Mas-Oliva Disorder-to-order conformational transitions in protein structure and its relationship to disease Mol Cell Biochem (2009) 330: 105-120
	Jorge Delgado, Hartmut Kriegs, and Rolando Castillo Flow Velocity Profiles and Shear Banding Onset in a Semidilute Wormlike Micellar System under Couette Flow J. Phys. Chem. B 2009, 113, 15485
	S. Ramos, J. Campos-Ter�n, J. Mas-Oliva, Tommy Nylander and R. Castillo Forces between Hydrophilic Surfaces Adsorbed with Apolipoprotein AII Alpha Helices Langmuir 2008, 24, 8568-8575
	J. Galvan-Miyoshi, J. Delgado and R. Castillo Diffusing Wave Spectroscopy in Maxwellian Fluids
	J. Galvan-Miyoshi and R. Castillo Absolute values of transport mean free path of light in non-absorbing media using transmission and reflectance measurements. Rev. Mex. Fis. 54 (3) (2008) 257-264
	P. Mendoza-Espinosa, A. Moreno, R. Castillo, J. Mas-Oliva Lipid Dependant Disorder-to-Order Conformational Transitions in Apolipoprotein CI Derived Peptides Biochemical and Biophysical Research Communications. 365 (2008) 8-15.
	J. Hern�ndez-Pascacio, C. Garza, X. Banquy, N. D�az-Vergara, A. Amigo, S. Ramos, R. Castillo, M. Costas, A. Pi�eiro Cyclodextrin based self-assembled nanotube at the water/air interface J. Phys. Chem. B (letter), 111, 12625, (2007).
	J. Delgado, R. Castillo Shear-Induced structures formed during thyxotropic loops in dilute worm-micelle solutions, J. of Colloid and Interface Science 312 (2007) 481-488.
	C. Garza, L. T. Thieghi, R. Castillo Atomic Force Microscopy Images of Lyotropic Lamellar Phases, J. Chem. Phys. 126, 051106 (2007).
	A. Flores, E. Corvera-Poir�, C. Garza, R. Castillo Growth and morphology in Langmuir monolayers. Europhys. Letters. 74, 799 (2006).
	A. Flores, E. Corvera-Poir�, C. Garza, R. Castillo Pattern Formation and Morphology Evolution in Langmuir Monolayers J. Phys. Chem. B. 110, 4824 (2006).
	A. Flores. E. Corvera-Poir�, C. Garza, R. Castillo The dioctadecylamine monolayer. Non-equilibrium phase domains. Chapter 12: Current topics in Physics. In Honor of Prof. Sir Roger J. Elliott. K. Kaski, R. Barrio (eds). 397 p. Imperial College Press, U.K.. (2005).
	J. Campos-Ter�n, J. Mas-Oliva, R. Castillo Interactions and conformations of α-helical human apolipoprotein CI on hydrophilic and on hydrophobic substrates. J. Phys. Chem. B 108, 20442 (2004).
	J. Xicohtencatl-Cortes, J. Mas-Oliva and R. Castillo Phase transitions of phospholipids monolayers penetrated with apolipoproteins. J. Phys. Chem. B 108, 7307 ( 2004).
	C. Garza, M. Carbajal-Tinoco, and R. Castillo Micelles and reverse micelles in the nickel bis(2-ethylhexyl) sulfosuccinate / water /isooctane microemulsion. J. of Colloid and Interface Science. 280, 276 (2004).
	J. Xicohtencatl-Cortes, R. Castillo. J. Mas-Oliva In Search of New Structural States of Exchangeable Apolipoproteins Biochemical and Biophysical Research Communications. 324, 467 (2004).
	J. Ruiz-Garc�a, A. Moreno, G. Brezesinski, H. M�hwald, J. Mas-Oliva, and R. Castillo Phase Transitions and Conformational Changes in Monolayers of Human Apolipoproteins CI and AII. J. Phys. Chem. B. 107, 11117 (2003)
	A. Flores, P. Ize, S. Ramos, and R.Castillo The dioctadecylamine monolayer. Textures, phase transitions, and dendritic growth. J. Chem. Phys. 119, 5644, 2003
	Mas-Oliva J., Moreno A., Ramos S., Xicohtencatl-Cortes J., Campos J. and R. Castillo. Monolayers of Apolipoprotein AII at the Air/Water interface. Frontiers in Cardiovascular Health. N.S. Dhalla, A. Chockalingam, H. I. Berkowitz and P.K. Singal (Eds.). Kluwer Academic Publishers, Boston, USA. p 341.(2003)
	J. Galv�n-Miyoshi and R. Castillo Fraunhofer diffraction in the crystalline phases of a monolayer. J. Phys. Condensed Matter. 14, 1 (2002).
	C. Garza, J. Delgado, and R. Castillo A survey of the phases and the metastable phases in the ternary systems of divalent metal [bis-2-ethylhexyl]-sulphosuccinate/iso-octane/water. J. Phys. Condensed Matter 14, 4805 (2002).
	V. M. Bola�os-Garc�a, S. Ramos, R. Castillo, J. Xicohtencatl-Cortes, and J. Mas-Oliva. Monolayers of Apolipoproteins at the air/water Interface. J. Phys. Chem. B. 105, 5757 (2001).
	G. Ju�rez-Mart�nez, C. Garza, R. Castillo, J. K. Baird and A. Moreno A Dynamic Light Scattering Investigation of the Nucleation and Growth of Thaumatin Crystals. J. Crystal Growth. 232,119 (2001).
	J. Galvan-Miyoshi, S. Ramos, J. Ruiz-Garc�a and R. Castillo Localized Oscillations and Fraunhofer diffraction in Crystalline Phases of a Monolayer. J. Chem. Phys. 115, 8178 (2001).
	V. M. Bola�os-Garcia, J. Mas-Oliva, S. Ramos and R. Castillo Phase Transitions in Monolayers of Human Apolipoprotein C1 J. Phys. Chem. B 103, 6236 (1999).
	R. Castillo and J. Ruiz-Garc�a Living polymerization of alpha-methylstyrene in tetrahydrofuran followed by dynamic light scattering near its polymerization temperature. J. Chem. Phys. (Communication to Editor). 110, 10 657 (1999).
	S. Ramos and R. Castillo Langmuir Monolayers of C17,C19 and C21 fatty acids. Textures, phase transitions, and localized oscillations J. Chem. Phys. 110, 7021 (1999).
	M. Terrones, W. K. Hsu, S. Ramos, R. Castillo and H. Terrones. The Role of Boron Nitride in Graphite Plasma Arcs. Fullerene Science and Technology. 6, 787 (1998).
	R. Castillo, C. Garza and J. Orozco. The Mutual Diffusion Coefficient of the Methanol- n-Hexane Mixture around the Coexistence Line. Fluid Phase Equilibria, 150-151, 797-805 (1998).
	R. Castillo, S. Ramos and J. Ruiz-García Brewster Angle Microscopy of Fullerene Monolayers Physica A 236, 105 (1997).
	S. Perez-Casas, M. Costas and R. Castillo Effect of Alcohols in AOT Reverse Micelles. A Heat Capacity and Light Scattering Study. J. Phys. Chem. B 101, 7043, (1997).
	R. Castillo and J. Orozco The Thermal Diffusion Factor for the van der Waals Binary Mixture J. Chem. Phys. 106, 8204 (1997).
	R. Castillo, S.Ramos and J. Ruiz-Garc�a Direct Observation of Langmuir Films of C60 and C70 Using Brewster Angle Microscopy. Physica A 236 (1997) 105-113.
	M. Terrones, W.K. Hsu, H. Terrones, J.P.Zhang, S. Ramos, J.P. Hare, R. Castlllo, K. Prassides, A.K. Cheetham, H.W. Kroto, D.R.M. Walton Metal particle catalysed production of nanoscale BN structures. Chem. Phys. Letters 259 (1996) 568-573.
	R. Castillo and C. Garza Mutual Diffusion Coefficients of Alkaline--Earth and Third-Family Metal Chlorides in Aqueous Solutions. Int. J. Thermophys. 17, 4. 1996.
	R. Castillo, S. Ramos, R. Cruz, M. Mart�nez, F. Lara and J. Ruiz-Garc�a Langmuir Films of Calix[8]arene/Fullerene Complexes. J. Phys. Chem. 1996, 100, 709-713.
	R. Castillo, S. Ramos, J. Ruiz-Garc�a and C. Varea Langmuir Films of Mixtures of C70 and Arachidic Acid. Fluid Phase Equilibria 110 (1995) 129 - 135.
	R. Castillo and M. Rivera The Effect of Traces of Hexyloxyethoxyethanol on the 2-Butoxyethanol + Water Liquid-Liquid Coexistence Curve. Int. J. Thermophys. 16, 3, 1995.
	M. Miki-Yoshida, R. Castillo, S. Ramos. L. Rendon, S. Tehuacanero, B. S. Zou, and M. Jose-Yacaman High Resolution Electron Microscopy Studies in Carbon Soots. Carbon, 32, 2, 231-246, 1994.
	R. Castillo, C. Garza and H. Dom�nguez The mutual diffusion coefficient for the van der Waals binary mixtures of types II, Ill, IV, and V. J. Chem. Phys. 100, 9, 1994.
	R. Castillo, C. Garza and S. Ramos Brownian Motion at the Molecular Level in Liquid Solutions of C60. J. Phys. Chem. 1994,98, 4188-4190.
	R. Castillo and C. Garza Temperature Dependence of the Mutual Diffusion Coefficients in Aqueous Solutions of Alkali Metal Chlorides. Int. J. Thermophysics, 14, 6, 1993.
	R. Castillo, C. Garza and H. Dom�nguez The mutual diffusion coefficient for the van der Waals binary mixture of type I. J. Chem. Phys, 99, 12, 15, 1993
	R. Castillo, and J. Orozco Prediction of Transport Properties of dense molecular fluids using the effective diameter hard sphere theory Perturbation method Molecular Physics, 1993, 79, 2, 343-357
	R. Castillo, and J. Orozco Free energy and transport properties of the Gaussian overlap model: Variational approach. J. Chem. Phys. 99, 2, 15, 1993.
	R. Castillo, A. Vlllaverde and J. Orozco Transport Properties in Dense Fluids and their Binary Mixtures. Fluid Phase Equilibria, 79 (1992) 277-288.
	Rolando Castillo, Cristina Garza, and Jorge Orozco Mutual Diffusion Coefficients in the Water-Rich Region of Water/Phenol Mixtures and Their Relation to Aggregate Formation. J. Phys. Chem. 96, 1992, 1475-1478
	R. Castillo, A. Villaverde and J. Orozco Prediction of transport properties for Lennard-Jones fluids and their binary mixtures using the effective-diameter hard-sphere kinetic theory Predictions Molecular Physics, 1991, 74, 6, 1315-1334
	Rolando C. Castillo, H�ctor C. Dom�nguez and Miguel Costas Determination of Mutual Diffusion Coefficients in Water-Rich 2-Buthoxiethanol/Water Mixtures Using the Taylor Dispersion Technique J. Phys. Chem, 1990, 94, 8731-8734
	R. Castillo and J. Orozco The Thermal Conductivity of Dense Fluids Using Revised Enskog Theory. Int. J. Thermophys. 11, 1990, 1025-1033
	R. Castillo and J. Orozco The Thermal Conductivity of Dense Fluids and Their Mixtures Using the Effective Diameter Revised Enskog Theory. Physica A 166 (1990) 505-516
	R. Castillo, M. E. Costas, and A. Robledo Global Behavior of the Diffusion Coefficient for the Van der Waals Binary Mixture. Int. J. Thermophys. 10,1989, 427-435
	R. Castillo, and S. Castañeda Correlation Method for the Shear Viscosity of Fluid Mixtures at Moderates Densities J. of Non-Equilibrium Thermodynamics. 14, 69 (1989)
	R. C. Castillo, E. Martina, M. L�pez de Haro, J. Karheck, and G. Stell Linearized kinetic-variational theory and short-time kinetic theory Phys. Rev. A. 1989,39, 3106-3111
	R. Castillo, and S. Castañeda The Bulk Viscosity in Dense Fluids Int. J. Thermophys. 9, 1988, 383-390
	H. Riveros and C. Garza. Rice husks as a source of high purity silica. J. Cryst. Growth 75 (1986).
	R. Castillo, M. Lopez de Haro, and E. Martina Transport Coefficients of Fluid Mixtures. Int. J. Thermophys. 7, 1986, 851-861
	R. Castillo. P. Morales y S. Ramos El ox�geno-18- en las aguas mete�ricas de Mexico. Revista Mexicana de F�sica 31,4 (1985) 637-647
	R.C. Castillo, A. Cort�s, P. Morales, G. Romero A survey of ground water flow using deuterium and oxigen-18 as tracers in the Samalayuca dunes northern Mexico. Revista Mexicana de F�sica 30,4 (1984)647-655.
	R. Castillo C., P. Morales and A. Cort�s Use of deuterium and oxigen-18 in hydrological problems at Delicias Valley, Chihuahua, Mexico. Revista Mexicana de F�sica 29, 4 (1983)509-514
	Pedro Morales and Rolando Castillo Caballero Use of deuterium and oxigen-18 in hydrological problems at Villa de Reyes , SLP. Mexico. Revista Mexicana de F�sica 29, 1 (1982)53-60
	R. Castillo, M. Rubio and F. Garc�a Molecular Orbital Theory Prediction of Prymary Fragmentation sites in Tetracyclic Diterpenoids Rev. Latinoamericana de Qu�mica 11, 95-98 (1980)
	R.A. Cruz, R. C.Castillo and F.J. Garc�a The Mass Spectra of [17-13C]Phyllocladene and [3-13C] Methhylenecholestane-lll Organic Mass Spectrometry. 12,1 (1977)