Preparation of au ag alloy nanoparticles for surface enhanced raman scattering
REALIZATION OF PLASMONIC 2d 3d NANOSTRUCTURES FOR SURFACE ENHANCED RAMAN SCATTERING DETECTION
... V Summary Raman scattering is an important method to obtain the vibrational spectroscopic information of molecules by their inelastic scattering with photons Surface enhanced Raman scattering ... dimension of surface nanostructures should be explored to enhance the intensity of SERS signals By developing the SERS substrates from 2D to 3D, the aspect ratio and surfa...
Báo cáo hóa học: " Fabrication and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate" pdf
... Y: Surface-enhanced Raman scattering of biological molecules on metal colloid II: effects of aggregation of gold colloid and comparison of effects of pH of glycine solutions between gold and silver ... and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate Nanoscale Research Letters 2011 6:263 Subm...
synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
... Biosynthesis of Bimetallic Au-Ag Alloy Nanoparticles”, Small, Vol 1, pp 517-520, 2005 [25 P Raveendran, J Fu, and S L Wallen, “A simple and green method for the synthesis of Au, Ag, and Au–Ag alloy ... Figure Calculated optical absorption spectra for Au-Ag bimetallic colloidal solutions with different molar ratios of Au and Ag Conclusions Au-Ag nanoclusters of...
Báo cáo hóa học: " Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation" potx
... and AgPt alloy as the shell We use Au@PtmAgn to represent the samples, and m and n are percentage determined by EDX.) The selfassembly technology enables loading a lot of Au NRs and Au@AgPt alloy ... and discussion Characterization of Pt Ag alloy nanoisland/graphene hybrid composites Figure shows the SEM images of graphenes, EDX spectra of graphene oxide (GO)...
Báo cáo hóa học: " Laser-Induced, Polarization Dependent Shape Transformation of Au/Ag Nanoparticles in Glass" docx
... lines of *1.5 mm length and 150 lm lateral distance have been inscribed in the glass at a velocity of 0.5 mm/s, corresponding to, on average, 200 laser pulses hitting each spot within the lines ... lines The polarization direction of the laser was parallel to the lines (writing direction) The effect of irradiating the sample in the described way with average single pulse energy...
Surface functionalization of superparamagnetic iron oxide nanoparticles for potential cell targeting, imaging, and cancer therapy applications
... SURFACE FUNCTIONALIZATION OF SUPERPARAMAGNETIC IRON OXIDE NANOPARTICLES FOR POTENTIAL CELL TARGETING, IMAGING, AND CANCER THERAPY APPLICATIONS HUANG CHAO (B.ENG., ... Objectives and Scopes The overall aim of this thesis is to develop various functional polymers as surface coatings of SPIONs for potential cell targeting, MRI, and cancer...
Semi-suspension technology for preparation of tetrabasic lead sulfate pastes for lead-acid batteries potx
... structure of the 4BS pastes prepared using the semi-suspension technology Experimental 2.1 Method of paste preparation This paper treats the production of tetrabasic lead sulphate pastes The ... Initial capacity of batteries with positive pastes prepared by the semi-suspension technology using leady oxides with three different degrees of oxidation 3.1.3 Influen...
A method for 3d nano focusing of optical energy and its application to the surface enhanced raman spectroscopic study of protein 2
... and Christy’s previous publication (73), 117 4.4 Surface Plasmon Polariton Assisted Surface Enhanced Raman Scattering on Ultrasmooth Metal Surface The theory for an enhanced field near a metal ... distance of the center of the cavity to the surface is h The major and minor axis of the cavity are denoted ˆ as a and b respectively a y -axis is poi...
A method for 3d nano focusing of optical energy and its application to the surface enhanced raman spectroscopic study of protein 1
... Theory of Enhanced Raman Scattering and its Experimental Verifications 2 .1 General Theory of Raman Scattering 13 2.2 Enhanced Raman Scattering 13 2.2 .1 Chemical Raman Enhancement 14 2.2.2 Electromagnetic ... Schematic diagram of SNOM system for phase measurements 17 0 17 1 Fig 15 A typical AFM and SNOM mappings of a 10 0-nm nano- cavity substrate wi...
Báo cáo hóa học: " Preparation of Ultrafine Fe–Pt Alloy and Au Nanoparticle Colloids by KrF Excimer Laser Solution Photolysis" docx
... and Au nanoparticles were prepared by KrF excimer laser solution photolysis TEM observations revealed that the Fe–Pt nanoparticles are composed of FCC A1 phase and are ultrafine with diameters of ... investigations are required to elucidate nanoparticle formation by UV laser solution photolysis of Fe and Pt complex solutions For applications of Fe–Pt nan...
Báo cáo hóa học: " Studies on Preparation of Photosensitizer Loaded Magnetic Silica Nanoparticles and Their Anti-Tumor Effects for Targeting Photodynamic Therap" ppt
... effector of PDT Therefore, photosensitizer loaded silica nanoparticles are different from conventional delivery systems which need releasing of the loaded drug [9] Previous investigations of fluorescent -magnetic ... fluorescent -magnetic nanoparticles mainly focused on the MRI imaging and fluorescence imaging for diagnosis; however, there are few studies on the mul...
Báo cáo hóa học: "Nanocrystal and surface alloy properties of bimetallic Gold-Platinum nanoparticles" pdf
... correlation of the Au-atop and Pt-atop CO bands on the surface of the alloy nanoparticles of a wide range of bimetallic composition with the electronic effect as a result of the d-band shift of Pt ... detection of redox waves corresponding to Au and Pt for AuPt alloy nanoparticles of different bimetallic composition on electrode surfaces demonstrated the presence...
báo cáo khoa học: "Cationic nanoparticles for delivery of amphotericin B: preparation, characterization and activity in vitro" potx
... outstanding anti-infective properties [18] Both amphotericin B and miconazole self-assemble and solubilize at hydrophobic sites of DODAB or DHP bilayer fragments in water solution exhibiting in ... fungus viability For final coverage with polylysines (PL) of increasing molecular weight at mg/mL PL, there was an increase in the final zeta-potential modulus and a larger loss...
Surface modification of ferromagnetic nanoparticles for separation of toxic heavy metals and environmental applications
... SURFACE MODIFICATION OF FERROMAGNETIC NANOPARTICLES FOR SEPARATION OF TOXIC HEAVY METALS AND ENVIRONMENTAL APPLICATIONS ZAYED BIN ZAKIR SHAWON B.Sc (Chemical ... cost of separation of detrimental pollutants like heavy metals Recently, scientists have focused on the development of the nanomaterials as adsorbents for the separations of biomolecules,...
Surface modification of NaYF4 yb,er upconversion nanoparticles for bio application
... Synthesis and characterization of NaYF4: Yb,Er UC nanoparticles and surface modification of UC nanoparticles by undoped NaYF4 shell coating (Chapter 3) Surface modification of UC nanoparticles by amino ... and NaYF4: Yb,Er nanoparticles in hexane 38 Figure 3.6 Energy level diagram of NaYF4: Yb,Er nanoparticles (versus vacuum) 38 Figure 3.7 XRD powder patte...
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