Ellipsoidal Hybrid Magnetic Microgel Particles with Thermally Tunable Aspect Ratios
|
|
- Arron O’Connor’
- 5 years ago
- Views:
Transcription
1 12. July 2011 Ellipsoidal Hybrid Magnetic Microgel Particles with Thermally Tunable Aspect Ratios Hervé Dietsch, Particles 2011 Conference 9-12 July 2011 Adolphe Merkle Institute Université de Fribourg Rte de l Ancienne Papeterie 3 CH-1723 Marly T F herve.dietsch@unifr.ch
2 Functionalized Building Blocks: Colloids, Polymers, Surfactants Particles 2011 conference Interactions, Phase Behavior, Microstructure Structures and Particle Assemblies Particle-particle interactions Particle-solvent interactions Eventually as a function of the used stimulus Building Blocks Soft Materials Crystallization, Phase Separation, Gelation Stimuli-Responsive Particles Properties Temperature, Magnetic field, Light, ph, Molecule to be detected, Protein Nanostructured Materials -> Novel Properties: I 12. July 2011 I p. 2
3 Thermoresponsive particles: LCST and VPTT Microscopic scale Example: PNIPAM a thermosensitive polymer Linear chain microgel (network) Microgel behavior good solvent => swollen T c 33ºC poor solvent => collapsed soft shell hard sphere T<LCST T>LCST LCST PNIPAM ~33 C Low Critical Solution Temperature VPTT Volume Phase Transition Temperature I 12. July 2011 I p. 3 H 2 H 2
4 Thermoresponsive particles: LCST and VPTT Microscopic scale Example: PNIPAM a thermosensitive polymer Size, volume fraction Linear chain microgel (network) and Microgel behavior good solvent => swollen T c 33ºC poor solvent => collapsed Interactions control soft shell hard sphere ne single trigger: Temperature T<LCST T>LCST H 2 H 2 LCST PNIPAM ~33 C Low Critical Solution Temperature VPTT Volume Phase Transition Temperature I 12. July 2011 I p. 4
5 Another Stimulus and morphology: Ellipsoidal-shaped Magnetic Particles a Submicrosized 80nm<a<150nm Without phosphate ions 3 6 Isotropic particle Matijevic et. al caña et. al I 12. July 2011 I p. 5
6 Alternative: Tuning the aspect ratio by silica coating TES in H 2 in Ethanol NH 3 I 12. July 2011 I p. 6 Based on Graf et. al. 2003
7 Alternative: Tuning the aspect ratio by silica coating TES in H 2 in Ethanol NH 3 I 12. July 2011 I p. 7 Based on Graf et. al. 2003
8 Morphology characterization using SAXS and TEM uncoated 13 nm silica 30 nm silica 59 nm silica M. Reufer, HD et al., J. Phys. Chem. B, 2010, 114, More I 12. July about 2011 magnetic I p. 8 properties: M. Reufer, HD et al., J Phys. Cond. Matter, 2011, 23,
9 Control of the surface chemistry thanks to the silica layer R' R' H H H H H H H H silane agent R' R R Si R' R' S i S i S i S i S i S i S i S i R' R' R' R R' + H-R H 3 C CH 2 H 3 C Si CH 3 CH 3 silane agent I 12. July 2011 I p. 9 Surface modification
10 Hybrid combination with the thermoresponsive PNIPAM shell Monomer, cross-linker, initiator, Δ Reactive silane on the surface Precipitation polymerization H 2 C HN CH 3 H 3 C NIPAM I 12. July 2011 I p. 10 α-fe 2 3 /PNIPAM C. Dagallier, H. Dietsch*, P. Schurtenberger and F. Scheffold, Soft Matter, 2010, 6(10):
11 Temperature response and dynamical arrest R h [nm] DLS R b2 R b1 R h 0.03M NaSCN R h T [ C] R a Hydrodynamic radius of hematite-pnipam PNiPAM microgel core-shell vs. particles temperature. vs. temperature. V V T Φ 15 C R b1 R b1 >R b2 >R a 30 C R b2 I 12. July 2011 I p. 11
12 Direction of Light beam Probing the rotation of hybrid microgels Pre-alignment 35 C Setup (Microscope) B B 35 C 10 C B 10 C birefringent Experiment: temperature ramp P CCD P A H A I 12. July 2011 I p. 12
13 Direction of Light beam Probing the rotation of hybrid microgels Pre-alignment 35 C Setup (Microscope) B B 35 C 10 C B 10 C birefringent Experiment: temperature ramp P CCD P A H A I 12. July 2011 I p. 13
14 Properties of the hybrid microgels PNIPAM microgels Hematite particles C. Dagallier, H. Dietsch*, P. Schurtenberger and F. Scheffold, Soft Matter, 2010, 6(10): I 12. July 2011 I p. 14
15 Properties of the hybrid microgels PNIPAM microgels ptical anisotropy, magnetic orientation control Hematite particles Size, volume fraction, Interactions control, Two triggers: Temperature and Magnetic field C. Dagallier, H. Dietsch*, P. Schurtenberger and F. Scheffold, Soft Matter, 2010, 6(10): I 12. July 2011 I p. 15
16 Remaining challenges Increase the magnetic response Hematite are canted-antiferromagnetic rientation under magnetic field along the long axis Morphology changes with temperature y x H y z H T I 12. July 2011 I p. 16
17 Conclusion Particles with a proper surface chemistry can be incorporated in a microgel (or another polymer shell or bulk) if used as seeds. Magnetic responsive can be tailored by control of the crystalline structure Combining two stimuli can lead to more than 2 new properties (magnetic and thermosensitive can lead also to morphology mutation and polarization of light, X- ray ) Can be used for rotation diffusion, friction, glass transition, phase diagrams, orientationna relaxation in dense microgel suspensions, active microrheology studies I 12. July 2011 I p. 17
18 The Group Liliane Ackermann Adriana Mihut Shuo Bai Camille Dagallier (Stanford) Verena Staedele (PSI) Ann Hirt (ETHZ) Urs Gasser (PSI) Stefan Hengsberger(EIF) Frank Scheffold (UniFr) Peter Schurtenberger (ULund) Funding Izabela Bobowska livier Pravaz Jérôme Crassous I 12. July 2011 I p. 18
Driven self-assembly Part 2
Driven self-assembly Part 2 Peter Schurtenberger Physical Chemistry Department of Chemistry Lund University Summary soft dipolar spheres softness is important ac field allows us to cycle through crystal-crystal
More information2.1 Traditional and modern applications of polymers. Soft and light materials good heat and electrical insulators
. Polymers.1. Traditional and modern applications.. From chemistry to statistical description.3. Polymer solutions and polymer blends.4. Amorphous polymers.5. The glass transition.6. Crystalline polymers.7.
More informationAnnual Report 2008 of the Adolphe Merkle Institute
Adolphe Merkle Institute University of Fribourg Rte de l'ancienne Papeterie P.O. Box 209 CH-1723 Marly 1 Annual Report 2008 of the Adolphe Merkle Institute March 2009 Annual Report 2008 of the Adolphe
More informationFrom Polymer Gel Nanoparticles to Nanostructured Bulk Gels
From Polymer Gel Nanoparticles to Nanostructured Bulk Gels Zhibing Hu Departments of Physics and Chemistry, University of North Texas Denton, TX 76203, U. S. A. Phone: 940-565 -4583, FAX: 940-565-4824,
More informationAdsorption and desorption of lysozyme on thermosensitive nano-sized magnetic particles and its conformational changes
Adsorption and desorption of lysozyme on thermosensitive nano-sized magnetic particles and its conformational changes N. Shamim, L. Hong, K. Hidajat, M. S. Uddin * Department of Chemical and Biomolecular
More informationGold-poly(N-isopropylacrylamide) core-shell colloids with homogeneous density profiles: A small angle scattering study
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2014 Supporting Information Gold-poly(N-isopropylacrylamide) core-shell colloids with
More informationSupporting Information
Copyright WILEY-VCH Verlag GmbH & Co. KGaA, 69469 Weinheim, Germany, 2014. Supporting Information for Adv. Funct. Mater., DOI: 10.1002/adfm.201304218 Light-Controlled Actuation, Transduction, and Modulation
More informationColloidal Crystals of Responsive Hydrogels. L. Andrew Lyon, Associate Professor School of Chemistry and Biochemistry Georgia Institute of Technology
Colloidal Crystals of Responsive Hydrogels L. Andrew Lyon, Associate Professor School of Chemistry and Biochemistry Georgia Institute of Technology Opals: Structure and Optics Assembly Structure Optics
More informationSupporting Information: Swelling of a responsive. network within different constraints in. multi-thermosensitive microgels
Supporting Information: Swelling of a responsive network within different constraints in multi-thermosensitive microgels Monia Brugnoni, Andrea Scotti, Andrey A. Rudov,, Arjan P. H. Gelissen, Tobias Caumanns,
More informationEnhanced Photonic Properties of Thin Opaline Films as a Consequence of Embedded Nanoparticles.
Enhanced Photonic Properties of Thin Opaline Films as a Consequence of Embedded Nanoparticles. D E Whitehead, M Bardosova and M E Pemble Tyndall National Institute, University College Cork Ireland Introduction:
More informationFibrillated Cellulose and Block Copolymers as a Modifiers of Unsaturated Polyester Nanocomposites
Fibrillated Cellulose and Block Copolymers as a Modifiers of Unsaturated Polyester Nanocomposites Daniel H. Builes, Hugo Hernández, Laida Cano, Agnieszka Tercjak Group Materials + Technologies Polymeric
More informationJulien Schmitt, postdoc in the Physical Chemistry department. Internship 2010: Study of the SAXS scattering pattern of mesoporous materials
Before starting Julien Schmitt, postdoc in the Physical Chemistry department Internship 2010: Study of the SAXS scattering pattern of mesoporous materials PhD 2011-2014: Self-assembly mechanism of mesoporous
More informationDi-Stimuli Responsive Diblock and Triblock Copolymer Particles
Di-Stimuli Responsive Diblock and Triblock Copolymer Particles Nancy Weber, John Texter *, and Klaus Tauer Max Planck Institute for Colloids and Interfaces Department of Colloid Chemistry 14476 Golm, Germany
More information2 Preparation of hollow spheres, microcapsules and microballoons by surfactant free emulsion templating
2 Preparation of hollow spheres, microcapsules and microballoons by surfactant free emulsion templating We report on the synthesis of new types of monodisperse, micrometer-sized hollow particles obtained
More informationMetallurgical and Materials Engineering Department MME 2509 Materials Processing Laboratory SOL-GEL DIP COATING
Metallurgical and Materials Engineering Department MME 2509 Materials Processing Laboratory SOL-GEL DIP COATING Assist. Prof. Dr. Tolga TAVŞANOĞLU 1. Sol-gel Process Sol-gel process is used for production
More informationCombined SANS and SAXS in studies of nanoparticles with core-shell structure
Indian Journal of Pure & Applied Physics Vol. 44, October 006, pp. 74-78 Combined SANS and SAXS in studies of nanoparticles with core-shell structure P S Goyal & V K Aswal* UGC-DAE CSR, Mumbai Centre (*Solid
More informationColloid Particles Studied by Near Edge X-ray. Absorption Spectronanoscopy
Supporting Information for: Individual Hybrid Colloid Particles Studied by Near Edge X-ray Absorption Spectronanoscopy Katja Henzler 1,2* ; Peter Guttmann 1, Yan Lu 2, Frank Polzer 3, Gerd Schneider 1,
More informationLecture 8. Polymers and Gels
Lecture 8 Polymers and Gels Variety of polymeric materials Polymer molecule made by repeating of covalently joint units. Many of physical properties of polymers have universal characteristic related to
More informationEmulsions Part 3. microemulsions miniemulsions. remarks to: Klaus Tauer MPI Colloids and Interfaces Am Mühlenberg, D Golm, Germany
Emulsions Part 3 remarks to: microemulsions miniemulsions Klaus Tauer MPI Colloids and Interfaces Am Mühlenberg, D-14476 Golm, Germany Micro and Miniemulsion Why Special Emphasis? questionable graph!!!
More informationSupplementary Information. "On-demand" control of thermoresponsive properties of poly(n-isopropylacrylamide) with cucurbit[8]uril host-guest complexes
upplementary Information "n-demand" control of thermoresponsive properties of poly(n-isopropylacrylamide) with cucurbit[8]uril host-guest complexes Urs Rauwald, Jesús del Barrio, Xian Jun Loh, and ren
More informationDouble Mesoporous Silica Shelled Spherical/Ellipsoidal Nanostructures: Synthesis and Hydrophilic/Hydrophobic Anticancer Drug Delivery
Supporting information for Supplementary Material (ESI) for Journal of Materials Chemistry Double Mesoporous Silica Shelled Spherical/Ellipsoidal Nanostructures: Synthesis and Hydrophilic/Hydrophobic Anticancer
More informationSupplementary Material for Programming Nanoparticle Aggregation Kinetics with Poly(MeO 2 MA-co-OEGMA) CoPolymers
Supplementary Material for Programming Nanoparticle Aggregation Kinetics with Poly(MeO 2 MA-co-OEGMA) CoPolymers Filippo Gambinossi a, Munish Chanana b, Steven E. Mylon c, and James K. Ferri a, * a Lafayette
More informationnot to be confused with using the materials to template nanostructures
Zeolites as Templates: continued Synthesis: Most zeolite syntheses are performed by using template-synthesis not to be confused with using the materials to template nanostructures templates are often surfactants
More informationScattering experiments
Scattering experiments Menu 1. Basics: basics, contrast, q and q-range. Static scattering: Light, x-rays and neutrons 3. Dynamics: DLS 4. Key examples Polymers The Colloidal Domain The Magic Triangle Length-
More informationEncapsulation. Battelle Technology. Introduction
Encapsulation Introduction The encapsulation methods reported in the literature 1-7 for the production of microcapsules are generally achieved using one of the following techniques: 1. Phase separation
More informationNanoparticle-Doped Polydimethylsiloxane Elastomer Films
Nanoparticle-Doped Polydimethylsiloxane Elastomer Films DE VIG Jorge Pérez-Juste, Luis M. Liz-Marzán, Isabel Pastoriza-Santos Departamento de Química Física Universidade de Vigo utline DE VIG Some Properties
More informationOptical properties of spherical and anisotropic gold shell colloids
8 Optical properties of spherical and anisotropic gold shell colloids Core/shell colloids consisting of a metal shell and a dielectric core are known for their special optical properties. The surface plasmon
More informationInfluence of Nanoparticle s Surface Composition on the Properties of Epoxide Based Adhesives
Influence of Nanoparticle s Surface Composition on the Properties of Epoxide Based Adhesives A. Hartwig, J. Trautmann, M. Sebald har@ifam.fraunhofer.de EUADH 2008 - xford September 2008 utline Introduction
More informationAmorphous Polymers: Polymer Conformation Laboratory 1: Module 1
D E P A R T M E N T O F M A T E R I A L S S C I E N C E A N D E N G I N E E R I N G M A S S A C H U S E T T S I N S T I T U T E O F T E C H N O L O G Y 3.014 Materials Laboratory Fall 2008 Amorphous Polymers:
More informationSupporting Information. for
Supporting Information for Enhanced Performance of Blended Polymer Excipients in Delivering a Hydrophobic Drug through the Synergistic Action of Micelles and HPMCAS Ziang Li, Lindsay M. Johnson, Ralm G.
More informationHigh-resolution Characterization of Organic Ultrathin Films Using Atomic Force Microscopy
High-resolution Characterization of Organic Ultrathin Films Using Atomic Force Microscopy Jing-jiang Yu Nanotechnology Measurements Division Agilent Technologies, Inc. Atomic Force Microscopy High-Resolution
More informationMicrostructured Porous Silica Obtained via Colloidal Crystal Templates
Paper No. 203e Microstructured Porous Silica Obtained via Colloidal Crystal Templates O. D. Velev, T. A. Jede, R. F. Lobo and A. M. Lenhoff Department of Chemical Engineering, University of Delaware, Newark
More informationFast Nucleation for Silica Nanoparticle Synthesis in. Sol-Gel Method
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2016 Fast Nucleation for lica Nanoparticle Synthesis in Sol-Gel Method Chandra K. Dixit*, Snehasis
More informationLecture 8 Polymers and Gels
Lecture 8 Polymers and Gels Variety of polymeric materials Polymer molecule made by repeating of covalently joint units. Living polymers (not considered in this lecture) long-chain objects connected by
More informationLayer-by-layer assembly of a magnetic nanoparticle shell on a thermoresponsive microgel core
Journal of Magnetism and Magnetic Materials 311 (7) 219 223 www.elsevier.com/locate/jmmm Layer-by-layer assembly of a magnetic nanoparticle shell on a thermoresponsive microgel core John Erik Wong a,,
More informationReport on Preparation of Nanotemplates for mab Crystallization
Deliverable number D2.1 Due date 30/09/2017 Deliverable title Report on Preparation of Nanotemplates for mab Crystallization Issue date 21/09/2017 WP number WP2 Author(s) J. Heng, W. Chen, H. Yang Lead
More informationPOSS for Surface Modification and and Corrosion Prevention
PSS for Surface Modification and and Corrosion Prevention Bill einerth Presented at the Nanostructured Chemicals Workshop September 7 th - 8 th, 2000 18237 Mount Baldy Circle Fountain Valley, CA 92708
More informationPhotopolymerization in Lyotropic Liquid Crystal Templates for Improved Polymer Properties
Photopolymerization in Lyotropic Liquid Crystal Templates for Improved Polymer Properties Bradley S. Forney and C. Allan Guymon, University of Iowa, Chemical and Biochemical Eng. Dept., Iowa City, USA
More informationIntroduction to Nanoparticle Tracking Analysis (NTA) Measurement Principle of ZetaView
Technical Note Nanoparticle Tracking Key words: Introduction to Nanoparticle Tracking Analysis (NTA) Measurement Principle of ZetaView Particle characterization, Nanoparticle Tracking Analysis (NTA), Brownian
More informationSelf-assembly of rigid polyelectrolytes as a mechanism for proton transport membrane formation
Self-assembly of rigid polyelectrolytes as a mechanism for proton transport membrane formation Eduardo Mendes (SM) Faculty of Applied Sciences (TW) Delft University of Technology(The etherlands) e.mendes@tnw.tudelft.nl
More informationSupplementary Information. Synthesis of soft colloids with well controlled softness
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Supplementary Information Synthesis of soft colloids with well controlled softness Fuhua Luo, Zhifeng
More informationSurface Modification of PTMS Particles with Organosilanes: TEOS-, VTMS-, and MTMS-Modified Particles
Journal of Sol-Gel Science and Technology 31, 117 121, 2004 c 2004 Kluwer Academic Publishers. Manufactured in The United States. Surface Modification of PTMS Particles with Organosilanes: TEOS-, VTMS-,
More informationSurfactant adsorption and aggregate structure at silica nanoparticles: Effect of particle size and surface modification. Supplementary Information
Surfactant adsorption and aggregate structure at silica nanoparticles: Effect of particle size and surface modification Bhuvnesh Bharti, Jens Meissner, Urs Gasser and Gerhard H. Findenegg* * e-mail: findenegg@chem.tu-berlin.de
More informationII.2 Photonic Crystals of Core-Shell Colloidal Particles
II.2 Photonic Crystals of Core-Shell Colloidal Particles We report on the fabrication and optical transmission studies of thin three-dimensional photonic crystals of high-dielectric ZnS-core and low-dielectric
More informationECE Lecture #8 ECE 5320
Lecture #8 Synthesis and Application of Magnetic Nanoparticles Top Down Synthesis by Physical Methods Up Bottom Synthesis by Chemical Methods Bulk Classical behavior 1. High Energy Ball Milling 2. Laser
More informationThermosensitive poly(n-isopropylacrylamide) nanocapsules with controlled permeability
Polymer 46 (2005) 1087 1093 www.elsevier.com/locate/polymer Thermosensitive poly(n-isopropylacrylamide) nanocapsules with controlled permeability Haifeng Gao, Wuli Yang, Ke Min, Liusheng Zha, Changchun
More informationSupplementary Figure 1. TEM and SEM images of sample 1 at seven different days after selfassembly. Cryo-TEM (right) clearly shows that the morphology
Supplementary Figure 1. TEM and SEM images of sample 1 at seven different days after selfassembly. Cryo-TEM (right) clearly shows that the morphology remains spherical over time. The indented structures,
More informationChapter 6 Magnetic nanoparticles
Chapter 6 Magnetic nanoparticles Magnetic nanoparticles (MNPs) are a class of nanoparticle which can be manipulated using magnetic field gradients. Such particles commonly consist of magnetic elements
More informationSelf-Assembly of Polyhedral Hybrid Colloidal Particles
Mater. Res. Soc. Symp. Proc. Vol. 1135 2009 Materials Research Society 1135-CC06-08 Self-Assembly of Polyhedral Hybrid Colloidal Particles Adeline Perro 1, Etienne Duguet 3, Serge Ravaine 4 and Vinothan
More informationProton-Conducting Nanocomposites and Hybrid Polymers
Proton-onducting Nanocomposites and Hybrid Polymers Y.D. Premchand 1, M.L. Di Vona 2, and P. Knauth 1 1 Introduction This chapter is about proton-conducting nanocomposites and hybrid polymers. Before beginning
More information(865) Buehler 567,
Bin Zhao, Associate Professor of Chemistry zhao@ion.chem.utk.edu (865)974-3399 Buehler 567, 506-508 Polymer Chemistry, Surface Chemistry, Materials Chemistry Our research involves the synthesis and study
More informationStable Encapsulation of Quantum Dot Barcodes with Silica Shells
Stable Encapsulation of Quantum Dot Barcodes with Silica Shells Shang-Hsiu Hu and Xiaohu Gao Department of Bioengineering, University of Washington Seattle, WA 98195 (USA) Adv. Funct. Mater. 2010. ASAP
More informationElectrostatic Self-assembly : A New Route Towards Nanostructures
1 Electrostatic Self-assembly : A New Route Towards Nanostructures J.-F. Berret, P. Hervé, M. Morvan Complex Fluids Laboratory, UMR CNRS - Rhodia n 166, Cranbury Research Center Rhodia 259 Prospect Plains
More informationPhotonic crystals of core shell colloidal particles
Letter to Appl. Phys. Letters June 8, 2001 Photonic crystals of core shell colloidal particles Krassimir P. Velikov, a, ) Alexander Moroz, a) and Alfons van Blaaderen a,b, ) a Physics and Chemistry of
More informationEntanglements. M < M e. M > M e. Rouse. Zero-shear viscosity vs. M (note change of slope) Edwards degennes Doi. Berry + Fox, slope 3.4.
Entanglements Zero-shear viscosity vs. M (note change of slope) M < M e Rouse slope 3.4 M > M e Edwards degennes Doi slope 1 Berry + Fox, 1968 Question: Which factors affect the Me: T, P, M, flexibility,
More informationarxiv:physics/ v2 [physics.chem-ph] 8 Dec 2004
arxiv:physics/0407001v2 [physics.chem-ph] 8 Dec 2004 Size Information Obtained Using Static Light Scattering Technique Yong Sun February 2, 2008 Abstract Detailed investigation of static light scattering
More informationIPR Temperature Response of Aqueous Solutions of a Series of Pyrene End- Labeled Poly(N-isopropylacrylamide)s Probed by Fluorescence
Temperature Response of Aqueous Solutions of a Series of Pyrene End- Labeled Poly(N-isopropylacrylamide)s Probed by Fluorescence M. Fowler, J. Duhamel, F. M. Winnik, X.-P. Qiu IPR Symposium, University
More informationMaterial Chemistry KJM 3100/4100. Synthetic Polymers (e.g., Polystyrene, Poly(vinyl chloride), Poly(ethylene oxide))
Material Chemistry KJM 3100/4100 Lecture 1. Soft Materials: Synthetic Polymers (e.g., Polystyrene, Poly(vinyl chloride), Poly(ethylene oxide)) Biopolymers (e.g., Cellulose derivatives, Polysaccharides,
More informationCarbon nanotube coated snowman-like particles and their electro-responsive characteristics. Ke Zhang, Ying Dan Liu and Hyoung Jin Choi
Supporting Information: Carbon nanotube coated snowman-like particles and their electro-responsive characteristics Ke Zhang, Ying Dan Liu and Hyoung Jin Choi Experimental Section 1.1 Materials The MWNT
More informationsynthetic strategies for the generation of polymer monolayers grafting via immobilized monomers
synthetic strategies for the generation of polymer monolayers I I I I "grafting-to" chemisorption: groups of the polymer are reacted with suitable surface sites grafting via immobilized monomers "grafting-from"
More informationSoft Matter. Polymers, Colloids, Liquid Crystals, Nanoparticles and Hybrid Organic- Inorganic Materials Systems.
3.063 Polymer Physics Spring 007 Viewpoint: somewhat more general than just polymers: Soft Matter Polymers, Colloids, Liquid Crystals, Nanoparticles and ybrid rganic- Inorganic Materials Systems. Reference:
More information*blood and bones contain colloids. *milk is a good example of a colloidal dispersion.
Chap. 3. Colloids 3.1. Introduction - Simple definition of a colloid: a macroscopically heterogeneous system where one component has dimensions in between molecules and macroscopic particles like sand
More informationLiquid Crystal. Liquid Crystal. Liquid Crystal Polymers. Liquid Crystal. Orientation of molecules in the mesophase
Liquid Crystal - Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal. (Fourth state of matter) Liquid Crystal Orientation
More informationSupporting Information
Supporting Information Spatial heterogeneity in lyotropic liquid crystal with hexagonal phase David P. Penaloza Jr., Koichiro Hori, Atsuomi Shundo,* and Keiji Tanaka* Department of Applied Chemistry, Kyushu
More informationSolutions for Assignment-8
Solutions for Assignment-8 Q1. The process of adding impurities to a pure semiconductor is called: [1] (a) Mixing (b) Doping (c) Diffusing (d) None of the above In semiconductor production, doping intentionally
More informationAbrasion Resistant Anti-Reflective Sol-Gel Coatings. Madeline Rutan Penfield High School. Advisor: Kenneth L. Marshall
Abrasion Resistant Anti-Reflective Sol-Gel Coatings Madeline Rutan Penfield High School Advisor: Kenneth L. Marshall University of Rochester Laboratory for Laser Energetics Summer High School Research
More informationNMR Spectroscopy of Polymers
r NMR Spectroscopy of Polymers Edited by ROGER N. IBBETT Courtaulds Research and Technology Coventry BLACKIE ACADEMIC & PROFESSIONAL An Imprint of Chapman & Hall London Glasgow New York Tokyo Melbourne
More informationFemtosecond laser microfabrication in. Prof. Dr. Cleber R. Mendonca
Femtosecond laser microfabrication in polymers Prof. Dr. Cleber R. Mendonca laser microfabrication focus laser beam on material s surface laser microfabrication laser microfabrication laser microfabrication
More informationUltrafast Electron and Energy Transfer in Dye- -- SUPPLEMENTARY TABLE and FIGURES
Ultrafast Electron and Energy Transfer in Dye- Sensitized Iron Oxide and Oxyhydroxide Nanoparticles -- SUPPLEMENTARY TABLE and FIGURES 1 Table S1. Summary of experimental determinations of the flatband
More informationVery large plasmon band shift in strongly coupled metal nanoparticle chain arrays.
Mat. Res. Soc. Symp. Proc. Vol. 797 2004 Materials Research Society W4.6.1 Very large plasmon band shift in strongly coupled metal nanoparticle chain arrays. L. A. Sweatlock 1, J. J. Penninkhof 2, S. A.
More informationTailoring the shapes of Fe x. Pt 100 x. nanoparticles. Home Search Collections Journals About Contact us My IOPscience
Home Search Collections Journals About Contact us My IOPscience Tailoring the shapes of Fe x Pt 100 x nanoparticles This content has been downloaded from IOPscience. Please scroll down to see the full
More informationMagnetic properties of organic radical fibers aligned in liquid crystals
Magnetic properties of organic radical fibers aligned in liquid crystals Yoshikazu Umeta, Hiroki Eimura Department of Chemistry, School of Science, the University of Tokyo Department of Chemistry and Biotechnology,
More informationSlanted Functional Gradient Micropillars for Optimal Bioinspired Dry
Supporting Information for Slanted Functional Gradient Micropillars for Optimal Bioinspired Dry Adhesion Zhengzhi Wang * Department of Engineering Mechanics, School of Civil Engineering, Wuhan University,
More informationFabrication of Tunable Spherical Colloidal Crystals Immobilized in Soft Hydrogels
Fabrication of Tunable Spherical Colloidal Crystals Immobilized in Soft Hydrogels By Toshimitsu Kanai, Daeyeon Lee, Ho Cheung Shum, and David A. Weitz* [*] Prof. D. A. Weitz, H. C. Shum School of Engineering
More informationThermally Functional Liquid Crystal Networks by Magnetic Field Driven Molecular Orientation
Supporting information Thermally Functional Liquid Crystal Networks by Magnetic Field Driven Molecular Orientation Jungwoo Shin, Minjee Kang, Tsunghan Tsai, Cecilia Leal, Paul V. Braun and David G. Cahill*,
More informationMeasuring nanoparticle properties: experiences from NPL Caterina Minelli
Measuring nanoparticle properties: experiences from NPL Caterina Minelli Measurement of Particles Types of materials: Metal Examples: Silver Gold Palladium Platinum Semiconductor Examples: Quantum Dots
More informationThe rôle of surfaces in prebiotic chemistry. Piero Ugliengo University of Torino Dip. Chimica Via P. Giuria, 7 - Torino
The rôle of surfaces in prebiotic chemistry Piero Ugliengo University of Torino Dip. Chimica Via P. Giuria, 7 - Torino 1 A collaborative work Dip. Chimica - NIS Centre Torino University TO BCN Dep. Quimica
More informationSacrifical Template-Free Strategy
Supporting Information Core/Shell to Yolk/Shell Nanostructures by a Novel Sacrifical Template-Free Strategy Jie Han, Rong Chen and Rong Guo* School of Chemistry and Chemical Engineering, Yangzhou University,
More informationAnirban Som
Anirban Som 01-11-14 Introduction Supramolecular chemistry generates complex structures over a range of length scales. Structures such as DNA origami, supramolecular polymers etc. are formed via multiple
More informationSuperparamagnetic nanoparticle arrays for magnetically tunable photonics. Josh Kurzman Materials 265
Superparamagnetic nanoparticle arrays for magnetically tunable photonics Josh Kurzman Materials 265 Superparamagnetism In SPM regime, thermal energy sufficient to overcome spin reversal barrier T B Below
More informationLiquid Crystals IAM-CHOON 1(1100 .,4 WILEY 2007 WILEY-INTERSCIENCE A JOHN WILEY & SONS, INC., PUBLICATION. 'i; Second Edition. n z
Liquid Crystals Second Edition IAM-CHOON 1(1100.,4 z 'i; BICENTCNNIAL 1 8 0 7 WILEY 2007 DICENTENNIAL n z z r WILEY-INTERSCIENCE A JOHN WILEY & SONS, INC., PUBLICATION Contents Preface xiii Chapter 1.
More informationColloids as nucleons
Colloids as nucleons Willem Kegel & Jan Groenewold Van t Hoff Laboratory Utrecht University The Netherlands Finite-size equilibrium structures macroscopic phase separation Equilibrium clusters & periodic
More informationEncapsulation. Loughborough University Institutional Repository
Loughborough University Institutional Repository Encapsulation This item was submitted to Loughborough University's Institutional Repository by the/an author. Citation: VLADISAVLJEVIC, G.T. and HOLDICH,
More informationDilute-solution properties of biomacromolecules as indicators of macromolecular structure and interactions
Dilute-solution properties of biomacromolecules as indicators of macromolecular structure and interactions José García de la Torre, Departament of Physical Chemistry University of Murcia, Spain jgt@um.es
More informationImprovement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings q
Optics Communications 218 (2003) 27 32 www.elsevier.com/locate/optcom Improvement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings q YanJun Liu a, *, Bin Zhang
More informationSelf-rolling tubes based on poly(nisopropylacrylamide)/polycaprolactone
Practical work Self-rolling tubes based on poly(nisopropylacrylamide)/polycaprolactone bilayers Motivation and aim of the experiment Self-rolling tubes based on polymer bilayers seem to be perspective
More informationStructural characterization. Part 2
Structural characterization Part Scattering angle Crystalline materials Bragg s law: Scattering vector Q ~ d -1, where d is interplanar distance Q has dimension [m -1 ], hence large Q (large scattering
More informationFast Deswelling of Microporous Cellulose Ether Gel Prepared by Freeze-drying
Fast Deswelling of Microporous Cellulose Ether Gel Prepared by Freeze-drying N. Kato, 1 H. Suzuki, 1 Y. Sakai, 1 and S. H. Gehrke 2 1 Department of Applied Chemistry, Faculty of Engineering, Utsunomiya
More informationChap. 2. Polymers Introduction. - Polymers: synthetic materials <--> natural materials
Chap. 2. Polymers 2.1. Introduction - Polymers: synthetic materials natural materials no gas phase, not simple liquid (much more viscous), not perfectly crystalline, etc 2.3. Polymer Chain Conformation
More informationImaging Methods: Scanning Force Microscopy (SFM / AFM)
Imaging Methods: Scanning Force Microscopy (SFM / AFM) The atomic force microscope (AFM) probes the surface of a sample with a sharp tip, a couple of microns long and often less than 100 Å in diameter.
More informationSupplementary Materials for
Supplementary Materials for A design strategy for the hierarchical fabrication of colloidal hybrid mesostructures Lin Jia, Guangyao Zhao, Weiqing Shi, Neil Coombs, Ilya Gourevich, Gilbert C. Walker, Gerald
More informationResearch in Tokyo Tech. Xiaoying Liu, 14R55026 Tsinghua University Advisor: Toshikazu Takata Department of organic and polymeric materials
Research in Tokyo Tech Xiaoying Liu, 14R55026 Tsinghua University Advisor: Toshikazu Takata Department of organic and polymeric materials Research theme Introduction Synthesis of rotaxane cross-linked
More informationGelatine a physical gel
Gelatine a physical gel W. Babel, Chemie in unserer Zeit, 86 (1996) binder in jogurts, aspic, capsules for medical drugs silver halogenide photography preparation from fibrous collagen (from skin and bones)
More informationph-sensitive Nanocapsules with Barrier Properties: Fragrance Encapsulation and
Supporting Information ph-sensitive Nanocapsules with Barrier Properties: Fragrance Encapsulation and Controlled Release Ines Hofmeister,, Katharina Landfester, Andreas Taden,,* Max Planck Institute for
More information2.500 Desalination and Water Purification
MIT OpenCourseWare http://ocw.mit.edu 2.500 Desalination and Water Purification Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. Amphiphilic
More information6 NMR Interactions: Zeeman and CSA
6 NMR Interactions: Zeeman and CSA 6.1 Zeeman Interaction Up to this point, we have mentioned a number of NMR interactions - Zeeman, quadrupolar, dipolar - but we have not looked at the nature of these
More informationFinal Morphology of Complex Materials
120314 Final Morphology of Complex Materials 1) Proteins are the prototypical model for hierarchy. a) Give the generic chemical structure for an amino acid and a protein molecule (a tripeptide). b) Label
More informationNRT 16: Hetero-structured Polymer Nanoparticles for Toner Materials
NRT-16, Quarterly report, Mar2009-May2009, Page 1 of 9 NRT 16: Hetero-structured Polymer Nanoparticles for Toner Materials Aasheesh Srivastava and Galen D. Stucky Background and Motivation: The commercial
More informationNon contact measurement of viscoelastic properties of biopolymers
Non contact measurement of viscoelastic properties of biopolymers Christelle Tisserand, Anton Kotzev, Mathias Fleury, Laurent Brunel, Pascal Bru, Gérard Meunier Formulaction, 10 impasse Borde Basse, 31240
More informationSAS Data Analysis Colloids. Dr Karen Edler
SAS Data Analysis Colloids Dr Karen Edler Size Range Comparisons 10 1 0.1 0.01 0.001 proteins viruses nanoparticles micelles polymers Q = 2π/d (Å -1 ) bacteria molecules nanotubes precipitates grain boundaries
More information