Synthesis and Rapid Characterization of Amine-Functionalized Silica
|
|
- Dustin Hampton
- 5 years ago
- Views:
Transcription
1 December 15, 2011 Synthesis and Rapid Characterization of Amine-Functionalized Silica SUPPORTING INFORMATION Erick Soto-Cantu, Rafael Cueto, Jerome Koch and Paul S. Russo* Department of Chemistry and Macromolecular Studies Group Louisiana State University, Baton Rouge, LA 70803, USA *To whom correspondence should be addressed: Control of Particle Size by Shrinkage
2 It is common to find reports about increasing the diameter of the resulting colloidal silica after the hydrolysis is completed. The subsequent addition of TEOS can increase the particle size of colloidal silica in a predicted manner. For some applications, it may be necessary to decrease the particle size instead of increasing it. Hydrogen fluoride (HF) has been used to completely etch silica out of other components in particles. The reaction is favored by the formation of stable and volatile silicon fluoride. It is possible to use this reaction in order to decrease the particle size of colloidal silica (procedure in next paragraph). The volume of the spheres, and hence their mass, is proportional to the third power of the radius. A radius of ½ of the original was planned. Therefore, the mass of the particles would be reduced to (½)3 = ⅛ of its original value. A mass of HF equal to ⅞ of the chemical equivalent of the original mass of silica was added. As can be seen in Figure SI-1, the diameter of the silica particles was reduced. The a b Figure SI-1. TEM images of silica particles. a): Before and b): After HF etching. average diameter before etching was 269 nm ± 20 nm and after etching is 160 nm ± 32 nm (both measured from the TEM images in Figure 2). The size reduction represents 40% of the original size as opposed to the 50% predicted. The polydispersity increased from ± 7.4% to ± 20.0%. The increase in polydispersity is accentuated because smaller particles have larger specific surface area hence can react at a faster rate than larger ones. This size reduction method might be
3 adequate for particles of very low polydispersity values and for small differential reduction values. Procedure to Etch Colloidal Silica with Hydrofluoric Acid Caution: HF is highly and painfully toxic. Work should not begin without appropriate training, a trained laboratory partner, and an adequate supply of calcium gluconate. Colloidal silica (10 ml) obtained by the modified method described in the previous section (conc. 8.6 mg/ml) was placed in a 50 ml polypropylene tube. Then 10 ml of a 1% HF solution was added to the silica dispersion. The mixture was magnetically stirred and allowed to react at room temperature for 9 hours. After that, the resulting colloidal silica was centrifuged at 5900 g for 30 minutes. The silica pellet was subsequently re-dispersed in absolute ethanol. This washing procedure was repeated at least 5 times. Core-Shell Form Factor for Fitting Scattering Envelopes The experimental observation (Figure 4 of main text) that the scattering level is higher than expected for a uniform particle suggests the existence of structural features smaller than the particles themselves. One possibility would be gradients or inhomogeneities in the interior of the particles for example, variations in density and corresponding variations in refractive index. A simple way to assess this is with a core-shell model. The appropriate form factor for core-shell particles given by Aden and Kerker 1 simplifies in the Rayleigh-Gans-Debye limit 2 to: 3;4 I 2 6 ( m1 1) 3 j1( x) 3 ( m2 m1 ) 3 j1( fx) ( ) qr R 2π x + f ( m 1 1) fx (SI-1)
4 In Eq. SI-1, R is the outer radius of the core-shell particle (see Figure 6) and x = qr. t n 2 n 1 n 0 2R Figure SI-2. Parameters of the core-shell model; see text. The term j 1 (x) represents the first-order spherical Bessel function i.e., j sin( x) x) = x 1( 2 cos( x) x (SI-2) Eq. SI-1 contains two relative indices of refractive index: m 1 = n 1 /n 0 and m 2 = n 2 /n 0, where 0, 1 and 2 stand for solvent, shell and core, respectively. The term f stands for the fraction of the linear particle dimension within the core: f = R t R (SI-3) The equations above were cast into an Excel workbook. Figure SI-3 shows data from a particular time slice from the data set measured for the silica standard particles (see Figure 3C and 4 of the main text). For a particular set of parameters, the core-shell model does a much better job of fitting the high-angle data; however, some data at intermediate angles are not fit as closely as they are by the uniform sphere model. Excel s Solver nonlinear least squares fit routine offers quite a few operational options. Several of these were tried, and several initial guesses were attempted, with the result that the fit tends to one that looks as shown in Figure SI-3; however, the parameter space must be fairly flat because parameters could be varied over a fairly wide
5 range without gravely altering the fit. For example, the diameter of the putative core ranged over at least 10% and its shell refractive could be varied over at least 50%. In such a case, a full grid search over the parameters would be appropriate. This was not attempted because there is no reason to think a sharply defined core-shell structure exists in the first place. It does seem, though, that internal inhomogeneities of some kind can account for the excess scattering at high angles. Figure SI-3. Core-shell (red curve) and uniform sphere (blue curve) calculations overlaid onto data for commercial silica sphere standard (67 minutes elution time from Figure 3C of the main text).
6 Reference List 1) Aden,A.L.; Kerker,M. Scattering of Electromagnetic Waves from 2 Concentric Spheres. J.Appl.Phys. 1951, 22, ) Kerker,M.The Scattering of Light and Other Electromagnetic Radiation; Academic Press: New York, 1969, Ch ) Hallett,F.R.; Watton,J.; Krygsman,P. Vesicle Sizing - Number Distributions by Dynamic Light- Scattering. Biophys.J. 1991, 59, ) Wyatt,P.J. Differential Light Scattering - A Physical Method for Identifying Living Bacterial Cells. Applied Optics 1968, 7,
Permeable Silica Shell through Surface-Protected Etching
Permeable Silica Shell through Surface-Protected Etching Qiao Zhang, Tierui Zhang, Jianping Ge, Yadong Yin* University of California, Department of Chemistry, Riverside, California 92521 Experimental Chemicals:
More informationCharge transfer state emission dynamics in blueemitting. functionalized silicon nanocrystals
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2015 Supporting Information Charge transfer state emission dynamics in blueemitting
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 informationLight Scattering from Silica-Iron Oxide Core-Shell Colloids
7 Light Scattering from Silica-Iron Oxide Core-Shell Colloids Abstract Static light scattering measurements have been performed on colloidal dispersions of silica particles with two concentric shells one
More informationMagnetic Silica Particles for Catalysis
4 Magnetic Silica Particles for atalysis Abstract Monodisperse magnetizable colloidal silica particles in a stable dispersion have been functionalized with a homogeneous catalyst: a PP-pincer Pd-complex.
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 informationSupporting Information
Supporting Information Dynamic Nuclear Polarization of Spherical Nanoparticles Ümit Akbey 1 *, Burcu Altin 2, Arne Linden 1, Serdar Özcelik 3, Michael Gradzielski 2, Hartmut Oschkinat 1 1 Leibniz-Institut
More informationOrganization of silica spherical particles into different shapes on silicon substrates
Materials Science-Poland, Vol. 25, No. 3, 2007 Organization of silica spherical particles into different shapes on silicon substrates B. KORUSIEWICZ 1, K. MARUSZEWSKI 1,2* 1 Wrocław University of Technology,
More informationElectronic supplementary information
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2018 Electronic supplementary information Heterogeneous nucleation and growth of highly crystalline
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 informationHow Silica Aerogels Are Made
Page 1 of 7 How Silica Aerogels Are Made Back to the Table of Contents The discussion below relies upon the following terms: Hydrolysis: The reaction of a metal alkoxide (M-OR) with water, forming a metal
More informationSynthesis and characterization of silica titania core shell particles
PRAMANA c Indian Academy of Sciences Vol. 65, No. 5 journal of November 2005 physics pp. 787 791 Synthesis and characterization of silica titania core shell particles SUCHITA KALELE 1, RAVI DEY 1, NEHA
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 informationSUPPORTING INFORMATION
Nucleation of FAU and LTA Zeolites from Heterogeneous Aluminosilicate Precursors Matthew D. Oleksiak 1, Jennifer A. Soltis 2,4, Marlon T. Conato, 1,3 R. Lee Penn 2, Jeffrey D. Rimer 1* 1 University of
More informationSUPPORTING INFORMATION
Electronic Supplementary Material (ESI) for Chemical Communications. This journal is The Royal Society of Chemistry 2017 SUPPORTING INFORMATION Synthesis of Circular and Triangular Gold Nanorings with
More informationIntroduction to Dynamic Light Scattering with Applications. Onofrio Annunziata Department of Chemistry Texas Christian University Fort Worth, TX, USA
Introduction to Dynamic Light Scattering with Applications Onofrio Annunziata Department of Chemistry Texas Christian University Fort Worth, TX, USA Outline Introduction to dynamic light scattering Particle
More informationAmphiphilic diselenide-containing supramolecular polymers
Electronic Supplementary Material (ESI) for Polymer Chemistry. This journal is The Royal Society of Chemistry 2014 Amphiphilic diselenide-containing supramolecular polymers Xinxin Tan, Liulin Yang, Zehuan
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 informationSmall-Angle X-ray Scattering (SAXS)/X-ray Absorption Near Edge Spectroscopy (XANES).
S1 Small-Angle X-ray Scattering (SAXS)/X-ray Absorption Near Edge Spectroscopy (XANES). The combined SAXS/XANES measurements were carried out at the µspot beamline at BESSY II (Berlin, Germany). The beamline
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 informationHigh Tap Density Secondary Silicon Particle. Anodes by Scalable Mechanical Pressing for
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information: High Tap Density Secondary Silicon
More informationSupplementary Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2015 Supplementary Information AgPd@Pd/TiO 2 nanocatalyst synthesis by microwave
More informationSupporting Information
1 Supporting Information Photoluminescent Carbogenic Dots A. B. Bourlinos, A. Stassinopoulos, D. Anglos, R. Zboril, V. Georgakilas, E. P. Giannelis *, Institute of Materials Science, NCSR Demokritos, Ag.
More informationPreparation of monodisperse silica particles with controllable size and shape
Preparation of monodisperse silica particles with controllable size and shape J.H. Zhang, a) P. Zhan, Z.L. Wang, W.Y. Zhang, and N.B. Ming National Laboratory of Solid State Microstructures, Department
More informationSUPPORTING INFORMATION
Iron nanoparticles in the coupling of alkyl halides with aryl Grignard reagents. Robin B. Bedford, Michael Betham, Duncan W. Bruce, Sean A. Davis, Robert M. Frost and Michael Hird. SUPPORTING INFORMATION
More informationPREPARATION OF LUMINESCENT SILICON NANOPARTICLES BY PHOTOTHERMAL AEROSOL SYNTHESIS FOLLOWED BY ACID ETCHING
Phase Transitions Vol. 77, Nos. 1 2, January February 2004, pp. 131 137 PREPARATION OF LUMINESCENT SILICON NANOPARTICLES BY PHOTOTHERMAL AEROSOL SYNTHESIS FOLLOWED BY ACID ETCHING X. LI, Y. HE, S.S. TALUKDAR
More informationSupplementary Information. Fluoride-free synthesis of Sn-BEA catalyst by dry gel conversion
Electronic Supplementary Material (ESI) for Green Chemistry. This journal is The Royal Society of Chemistry 2015 Supplementary Information of Fluoride-free synthesis of Sn-BEA catalyst by dry gel conversion
More informationElectronic Supplementary Information
Electronic Supplementary Information Polymer-coated spherical mesoporous silica for ph-controlled delivery of insulin Sae Rom Choi a,, Dong-jin Jang b,, Sanghyun Kim a, Sunhyung An c, Jinwoo Lee c, Euichaul
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 informationSynthesis of Colloidal Au-Cu 2 S Heterodimers via Chemically Triggered Phase Segregation of AuCu Nanoparticles
SUPPORTING INFORMATION Synthesis of Colloidal Au-Cu 2 S Heterodimers via Chemically Triggered Phase Segregation of AuCu Nanoparticles Nathan E. Motl, James F. Bondi, and Raymond E. Schaak* Department of
More information1 Supporting Information. 2 Reconfigurable and resettable arithmetic logic units based. 4 Siqi Zhang a, Kun Wang a, Congcong Huang b and Ting Sun a*
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2015 1 Supporting Information 2 Reconfigurable and resettable arithmetic logic units based 3 on magnetic
More informationThe materials used in this study were Iron (III) chloride hexahydrate (AR grade) and
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2017 Supporting Information Synthesis of Metastable Hard-Magnetic ε-fe 2 O 3 Nanoparticles from Silica-Coated
More informationSupplementary Information
Supplementary Information 1. Experimental 1.1.1 Synthesis of hollow silica nanoparticles NPs. The precursor of sol-gel silica is fresh made 1.0 M Si(OH) 4 solution which was made by adding tetramethyl
More informationSYNTHESIS OF AN AZO DYE revisited (1 or 2 credits)
SYNTHESIS OF AN AZO DYE revisited (1 or 2 credits) This lab you can revisit the fist experiment of this quarter and synthesize more azo dyes of your choice. The old procedure is given below followed by
More informationSupporting Information
Supporting Information Collapsed (Kippah) Hollow Silica Nanoparticles Kun-Che Kao, Chieh-Jui Tsou and Chung-Yuan Mou* Experimental Section Materials: Reagents: Cetyltrimethylammonium bromide (CTAB, 99%+),
More informationFacile Synthesis and Optical Properties of Colloidal Silica Microspheres Encapsulating Quantum Dots-Layer
Electronic Supplementary Information for: Facile Synthesis and Optical Properties of Colloidal Silica Microspheres Encapsulating Quantum Dots-Layer Myungje Cho, Kipil Lim, Kyoungja Woo* Nano-Materials
More informationCharacterization of partially reduced graphene oxide as room
Supporting Information Characterization of partially reduced graphene oxide as room temperature sensor for H 2 Le-Sheng Zhang a, Wei D. Wang b, Xian-Qing Liang c, Wang-Sheng Chu d, Wei-Guo Song a *, Wei
More informationSupplementary Figure 1. SEM and TEM images of the metal nanoparticles (MNPs) and metal oxide templates.
Supplementary Figure 1. SEM and TEM images of the metal nanoparticles (MNPs) and metal oxide templates. (a) 13 nm Au, (b) 60 nm Au, (c) 3.3 nm Pt, (d) ZnO spheres, (e) Al 2O 3 spheres and (f) Cu 2O cubes.
More informationSupporting Information
Supporting Information Fabrication of Cubic Nanocages and Nanoframes by Dealloying Au/Ag Alloy Nanoboxes with an Aqueous Etchant Based on Fe(NO 3 ) 3 or NH 4 OH Xianmao Lu, 1,2 Leslie Au, 1 Joseph McLellan,
More informationSupporting Information for:
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Supporting Information for: Label-Free Detection and Discrimination of Polybrominated Diphenylethers
More informationShape Effect of Ag-Ni Binary Nanoparticles on Catalytic Hydrogenation Aided by Surface Plasmon
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Supplementary Information Shape Effect of Ag-Ni Binary Nanoparticles on Catalytic Hydrogenation
More informationSynthesis of Nanoparticles and Surface Modifications
Synthesis of Nanoparticles and Surface Modifications Self-Assembly Static assembly Dynamic assembly RT = 8.314 J/mol x 300 = 2.4 kj/mol Driving forces Chemisorption Surface effect Hydrophobic-hydrophilic
More informationSupporting Information for
Supporting Information for Microporous Organic Network Hollow Spheres: Useful Templates for Nanoparticulate Co 3 O 4 Hollow Oxidation Catalysts Narae Kang, Ji Hoon Park, Mingshi Jin, Nojin Park, Sang Moon
More informationSupporting Information
Supporting Information A Generic Method for Rational Scalable Synthesis of Monodisperse Metal Sulfide Nanocrystals Haitao Zhang, Byung-Ryool Hyun, Frank W. Wise, Richard D. Robinson * Department of Materials
More informationElectronic Supplementary Information. Facile synthesis of polypyrrole coated copper nanowire: new concept to engineered core-shell structures
Electronic Supplementary Information Facile synthesis of polypyrrole coated copper nanowire: new concept to engineered core-shell structures Yang Liu, a Zhen Liu, a Ning Lu, b Elisabeth Preiss, a Selcuk
More informationChemical synthesis (see also reaction scheme, bold underlined numbers in this text refer to the bold underlined numbers in the scheme)
Supplementary Note This section contains a detailed description of the chemical procedures and the characterization of products. The text is followed by a reaction scheme explaining the synthetic strategies
More informationElectronic supplementary information. A longwave optical ph sensor based on red upconversion
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Electronic supplementary information A longwave optical ph sensor based on red upconversion
More informationNOVABEADS FOOD 1 DNA KIT
NOVABEADS FOOD 1 DNA KIT NOVABEADS FOOD DNA KIT is the new generation tool in molecular biology techniques and allows DNA isolations from highly processed food products. The method is based on the use
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary Information (ESI) Experimental details 1. Preparation of KIT-6 mesoporous silica: Conc. HCl solution (37 wt%) and Pluronic P123 were dissolved in water. After the dissolution,
More informationNew Sol-Gel Solution with 45 Days Stability for Preparation Silica Thin Films
Iran. J. Chem. Chem. Eng. Vol. 26, No.3, 2007 New Sol-Gel Solution with 45 Days Stability for Preparation Silica Thin Films Adelkhani, Hadi* + ; Mellatnavaz, Bahram; Roohi, Hossein; Noorbakhsh, Mansoor
More informationSupporting Information
Supporting Information Highly luminescent water-dispersible NIR-emitting wurtzite CuInS 2 /ZnS core/shell colloidal quantum dots Chenghui Xia, a,b Johannes D. Meeldijk, c Hans C. Gerritsen, b and Celso
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 informationComparison of Extra Electrons in Colloidal n-type Al 3+ -Doped and Photochemically Reduced ZnO Nanocrystals
Supplementary Material for Comparison of Extra Electrons in Colloidal n-type Al 3+ -Doped and Photochemically Reduced ZnO Nanocrystals Alina M. Schimpf, a Stefan T. Ochsenbein, a Raffaella Buonsanti, b
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 informationElectronic supplementary information
Electronic supplementary information Surface plasmon resonance enhanced upconversion luminescence in aqueous media for TNT selective detection Nina Tu and Leyu Wang* State Key Laboratory of Chemical Resource
More information6. Lichtstreuung (2) Statische Lichtstreuung
6. Lichtstreuung (2) Statische Lichtstreuung What is Light Scattering? Blue sky, red sunset Automobile headlights in fog Laser beam in a smoky room Reading from an illuminated page Dust particles in beamer
More informationSupplementary Information. Pluronic polymer capped biocompatible mesoporous silica nanocarriers
Supplementary Information Pluronic polymer capped biocompatible mesoporous silica nanocarriers Adem Yildirim,* ab Gokcen Birlik Demirel, bc Rengin Erdem, ab Berna Senturk, ab Turgay Tekinay, ab and Mehmet
More informationEncapsulation of enzyme in metal ion-surfactant nanocomposites for
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2017 Supporting information for Encapsulation of enzyme in metal ion-surfactant nanocomposites for catalysis
More informationSUPPORTING INFORMATION
SUPPORTING INFORMATION Copper nanoparticulates in guar-gum: a recyclable catalytic system for the Huisgen[3+2]-Cycloaddition of Azides and Alkynes without additives under ambient conditions Ajeet Kumar,
More informationSynthesis of 2 ) Structures by Small Molecule-Assisted Nucleation for Plasmon-Enhanced Photocatalytic Activity
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information Synthesis of Au@UiO-66(NH 2 ) Structures by Small Molecule-Assisted
More informationThe CdS and CdMnS nanocrystals have been characterized using UV-visible spectroscopy, TEM, FTIR, Particle Size Measurement and Photoluminiscence.
Synthesis of CdS and CdMns Nanocrystals in Organic phase Usha Raghavan HOD, Dept of Information Technology VPM s Polytechnic, Thane Maharashtra Email id: usharagha@gmail.com Abstract: The present work
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 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 informationPreparation of Aminated Mesoporous Silica Nanoparticles (MSNs) by Delayed Co-condensation Technique
Extra Supporting Information (ESI) Experimental Procedures General All chemicals were purchased from Sigma-Aldrich and used as received, unless otherwise specified. 2,2',2''-(10-(2-((2,5-dioxopyrrolidin-1-yl)oxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-
More information(APTES), 3- mercaptopropyltrimethoxysilane (MPTMS), tetraethyl orthosilicate (TEOS), N,Ndimethylformamide
SUPPRTING INFRMATIN Materials: Iron (II) chloride hydrate ( FeCl 2,4H 2, 99%) was purchased from Alfa Aesar ( Ward Hill, MA). Iron (III) chloride hexahydrate ( FeCl 3,6H 2, 97%), (3-aminopropyl)triethoxysilane
More informationIntroduction to Dynamic Light Scattering for Particle Size Determination
www.horiba.com/us/particle Jeffrey Bodycomb, Ph.D. Introduction to Dynamic Light Scattering for Particle Size Determination 2016 HORIBA, Ltd. All rights reserved. 1 Sizing Techniques 0.001 0.01 0.1 1 10
More informationA soft-templated method to synthesize sintering-resistant Au/mesoporous-silica core-shell nanocatalysts with sub-5 nm single-core
A soft-templated method to synthesize sintering-resistant Au/mesoporous-silica core-shell nanocatalysts with sub-5 nm single-core Chunzheng Wu, ab Zi-Yian Lim, a Chen Zhou, a Wei Guo Wang, a Shenghu Zhou,
More informationAggregation and Deposition Behavior of Carbon-Based Nanomaterials in Aquatic Environments
Aggregation and Deposition Behavior of Carbon-Based Nanomaterials in Aquatic Environments Menachem Elimelech Department of Chemical Engineering Environmental Engineering Program Yale University 2007 NSF
More informationMagnetically-driven selective synthesis of Au clusters on Fe 3 O 4 Nanoparticles
Electronic Supplementary Material (ESI) for Chemical Communications Magnetically-driven selective synthesis of Au clusters on Fe 3 O 4 Nanoparticles Víctor Sebastian, M. Pilar Calatayud, Gerardo F. Goya
More informationSYNTHESIS AND CHARACTERIZATION OF COMMON OPAL. Pimthong Thongnopkun, 1,* Sukanya Pramol 2
SYNTHESIS AND CHARACTERIZATION OF COMMON OPAL Pimthong Thongnopkun, 1,* Sukanya Pramol 2 1,2 Gems and Jewelry Research Unit, Faculty of Gems, Burapha University, Chanthaburi 22170, Thailand. *e-mail: pimthong@buu.ac.th,
More informationJustin G. Railsback, Aaron C. Johnston-Peck, Junwei Wang, and Joseph B. Tracy DOI: Sreeprasad T. S
Size-Dependent Nanoscale Kirkendall Effect During the Oxidation of Nickel Nanoparticles Justin G. Railsback, Aaron C. Johnston-Peck, Junwei Wang, and Joseph B. Tracy Department of Materials Science and
More informationSupporting Information. Sol gel Coating of Inorganic Nanostructures with Resorcinol Formaldehyde Resin
Supporting Information Sol gel Coating of Inorganic Nanostructures with Resorcinol Formaldehyde Resin Na Li, a,b Qiao Zhang, b Jian Liu, c Jibong Joo, b Austin Lee, b Yang Gan,* a Yadong Yin *b a School
More informationTransient Electrocatalytic Water Oxidation in Single Nanoparticle Collision
Supporting Information for: Transient Electrocatalytic Water Oxidation in Single Nanoparticle Collision Fan Zhang, Peter A. Defnet, Yunshan Fan, Rui Hao, and Bo Zhang * Department of Chemistry, University
More informationSYNTHESIS AND PROCESSING OF METALLIC NANOMATERIALS USING CO 2 EXPANDED LIQUIDS AS A GREEN SOLVENT MEDIUM
SYNTHESIS AND PROCESSING OF METALLIC NANOMATERIALS USING CO 2 EXPANDED LIQUIDS AS A GREEN SOLVENT MEDIUM Christopher Kitchens Dept. of Chemical and Biomolecular Engineering Clemson University, SC ENGINEERED
More informationCH676 Physical Chemistry: Principles and Applications. CH676 Physical Chemistry: Principles and Applications
CH676 Physical Chemistry: Principles and Applications Crystal Structure and Chemistry Synthesis of Tetrahexahedral Platinum Nanocrystals with High-Index Facets and High Electro-Oxidation Activity Na Tian
More information(CATION EXCHANGE AND LN RESIN, WITH VACUUM BOX SYSTEM)
Analytical Procedure RADIUM IN WATER (CATION EXCHANGE AND LN RESIN, WITH VACUUM BOX SYSTEM) 1. SCOPE 1.1. This is a method for separation and measurement of radium-226 and radium-228 in water. This method
More informationGel Permeation Chromatography (GPC) or Size Exclusion Chromatography (SEC)
Gel Permeation Chromatography (GPC) or Size Exclusion Chromatography (SEC) Size Exclusion Chromatography (SEC) is a non-interaction based separation mechanism in which compounds are retained for different
More informationElectronic Supplementary Information (ESI) Synthesis of gold nanoparticles in a biocompatible fluid from sputtering deposition onto castor oil
Electronic Supplementary Information (ESI) Synthesis of gold nanoparticles in a biocompatible fluid from sputtering deposition onto castor oil Heberton Wender, a Luciane F. de Oliveira, b Adriano F. Feil,
More informationBiodegradable Hollow Silica Nanospheres Containing Gold Nanoparticle Arrays
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Biodegradable Hollow Silica Nanospheres Containing Gold Nanoparticle Arrays Domenico Cassano a,b,
More informationName Period Date. Lab 10: Paper Chromatography
Name Period Date Lab 10: Paper Chromatography Objectives Known and unknown solutions of the metal ions Fe +, Cu 2+ and Ni 2+ will be analyzed using paper chromatography. An unknown solution containing
More informationSupporting Information
Supporting Information Decorating Graphene Sheets with Gold Nanoparticles Ryan Muszynski, Brian Seeger and, Prashant V. Kamat* Radiation Laboratory, Departments of Chemistry & Biochemistry and Chemical
More information1 Electronic Supplementary Information. 3 SERS-based immunoassay on 2D-arrays of core-shell nanoparticles: influence
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2017 1 Electronic Supplementary Information 2 3 SERS-based immunoassay on 2D-arrays of Au@Ag core-shell
More informationSupporting Information
Supporting Information Janus Hollow Spheres by Emulsion Interfacial Self-Assembled Sol-Gel Process Fuxin Liang, Jiguang Liu, Chengliang Zhang, Xiaozhong Qu, Jiaoli Li, Zhenzhong Yang* State Key Laboratory
More informationdissolved into methanol (20 ml) to form a solution. 2-methylimidazole (263 mg) was dissolved in
Experimental section Synthesis of small-sized ZIF-8 particles (with average diameter of 50 nm): Zn(NO 3 ) 2 (258 mg) was dissolved into methanol (20 ml) to form a solution. 2-methylimidazole (263 mg) was
More information1. A Covalent bonding B Polar covalent bonding C Metallic bonding D Hydrogen bonding E Ionic bonding F London dispersion forces
Higher (National 6) Unit 1: Chemical changes and structure 1c Bonding and structure Problem sheets 1. A Covalent bonding B Polar covalent bonding C Metallic bonding D Hydrogen bonding E Ionic bonding F
More informationGrowth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach
Growth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach Xiu-Zhi Tang, a Zongwei Cao, b Hao-Bin Zhang, a Jing Liu
More informationNanoporous TiO 2 Nanoparticle Assemblies with Mesoscale Morphologies: Nano-Cabbage versus Sea-Anemone
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2014 Supplemental Documents Nanoporous TiO 2 Nanoparticle Assemblies with Mesoscale Morphologies: Nano-Cabbage
More informationSupporting Information
Supporting Information Wiley-VCH 2013 69451 Weinheim, Germany Colloidal Clusters by Using Emulsions and Dumbbell-Shaped Particles: Experiments and Simulations** Bo Peng,* Frank Smallenburg,* Arnout Imhof,
More informationoften display a deep green color due to where the SPR occurs (i.e., the wavelength of light that interacts with this specific morphology).
Synthesis-Dependent Catalytic Properties of Gold Nanoparticles Nanoscience is the study of materials that have dimensions, intuitively, on the nanoscale, typically between 1 100 nm. This field has received
More informationRevisited Wurtzite CdSe Synthesis : a Gateway for the Versatile Flash Synthesis of Multi-Shell Quantum Dots and Rods
Supporting Information for Revisited Wurtzite CdSe Synthesis : a Gateway for the Versatile Flash Synthesis of Multi-Shell Quantum Dots and Rods Emile Drijvers, 1,3 Jonathan De Roo, 2 Pieter Geiregat, 1,3
More informationSupplementary Information. Experimental Methods
Extremely thin Pd-silica mixed-matrix membranes with nano-dispersion for improved hydrogen permeability Masakoto Kanezashi, Mitsunori Sano, Tomohisa Yoshioka, and Toshinori Tsuru Department of Chemical
More informationDumpling-Like Nanocomplex of Foldable Janus Polymer Sheet and Sphere
Dumpling-Like Nanocomplex of Foldable Janus Polymer Sheet and Sphere Lei Gao, Ke Zhang, and Yongming Chen* Supporting Information Experimental Section Materials The triblock terpolymer, P2VP 310 -b-ptepm
More informationBIOLOGICAL CELLS LIGHT SCATTERING FROM NUCLEATED. bending of the rays) due to the different relative index of refraction for the nucleus,
LIGHT SCATTERING FROM NUCLEATED BIOLOGICAL CELLS RICHARD A. MEYER and ALBERT BRUNSTING From the Johns Hopkins Applied Physics Laboratory, Silver Spring, Maryland 20910, and the Physics Department, Auburn
More informationSupplementary Material (ESI) for Journal of Analytical Atomic Spectrometry This journal is The Royal Society of Chemistry 2010
Magnetic Solid Phase Microextraction on a Microchip Combined with Electrothermal Vaporization Inductively Coupled Plasma Mass Spectrometry for Determination of, and in Cells Beibei Chen 1, Shujing Heng
More informationEnantioselective Transamination in Continuous Flow Mode with Transaminase Immobilized in a Macrocellular Silica Monolith. Supporting Information
Enantioselective Transamination in Continuous Flow Mode with Transaminase Immobilized in a Macrocellular Silica Monolith Ludivine van den Biggelaar 1, Patrice Soumillion 2 and Damien P. Debecker 1, * 1
More informationSupplementary Materials. Synthesis of Reusable Silica Nanosphere-Supported Pt(IV) Complex for. Formation of Disulfide Bonds in Peptides
Supplementary Materials Synthesis of Reusable Silica Nanosphere-Supported Pt(IV) Complex for Formation of Disulfide Bonds in Peptides Xiaonan Hou, Xiaowei Zhao, Yamei Zhang, Aiying Han, Shuying Huo*, and
More informationRapid, Efficient Phase Pure Synthesis of Ca 2 AlNO 3 Layered Double Hydroxide
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2015 Supporting Information Rapid, Efficient Phase Pure Synthesis of Ca 2 AlNO
More informationPhysical Properties and Structure of Solids
49 Physical Properties and Structure of Solids INTRODUCTION: Depending on whether the kind of bonding in a pure substance is primarily ionic, covalent or metallic in character, a substance may be described
More informationSupporting Information
Supporting Information High Performance Electrocatalyst: Pt-Cu Hollow Nanocrystals Xiaofei Yu, a Dingsheng, a Qing Peng a and Yadong Li* a a Department of Chemistry, Tsinghua University, Beijing, 100084
More informationSYNTHESIS OF AN AZO DYE revisited (1 or 2 credits)
SYNTHESIS OF AN AZO DYE revisited (1 or 2 credits) This lab you can revisit the fist experiment of this quarter and synthesize more azo dyes of your choice. The old procedure is given below followed by
More information