scholarly journals Evaporation induced self-assembly and characterization of gold nanorods

2015 ◽  
Author(s):  
Imtiaz Ahmad
Keyword(s):  
Gold Nanorods ◽  
Self Assembly ◽  
Evaporation Induced Self Assembly

Mediating ordered assembly of gold nanorods by controlling droplet evaporation modes for surface enhanced Raman scattering

RSC Advances ◽  
2014 ◽  
Vol 4 (91) ◽  
pp. 50091-50096 ◽  
Author(s):  
Young-Kwan Kim ◽  
Hee-Kyung Na ◽  
Seulbeom Ham ◽  
Dal-Hee Min
Keyword(s):  
Optical Properties ◽  
Gold Nanorods ◽  
Self Assembly ◽  
Droplet Evaporation ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Evaporation Induced Self Assembly ◽  
Enhanced Raman Scattering ◽  
Ordered Nanostructures ◽  
Ordered Assembly

The evaporation induced self-assembly of nanomaterials has emerged as one of the important approaches to fabricate various ordered nanostructures with enhanced optical properties.

scholarly journals Optical Properties of Sol-Gel Nb2O5Films with Tunable Porosity for Sensing Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Rosen Georgiev ◽  
Biliana Georgieva ◽  
Marina Vasileva ◽  
Petar Ivanov ◽  
Tsvetanka Babeva
Keyword(s):  
Self Assembly ◽  
Optical Constants ◽  
Sol Gel ◽  
Reflectance Spectra ◽  
Silicon Substrates ◽  
Selected Area Electron Diffraction ◽  
Sensing Applications ◽  
Transmission Electron ◽  
Evaporation Induced Self Assembly

Thin Nb2O5films with tunable porosity are deposited by the sol-gel and evaporation induced self-assembly methods using organic template Pluronic PE6100 with different molar fractions with respect to NbCl5used as a precursor for synthesis of Nb sol. Surface morphology and structure of the films are studied by Transmission Electron Microscopy and Selected Area Electron Diffraction. The optical characterization of the films is carried out through reflectance spectra measurements of the films deposited on silicon substrates and theoretical modeling in order to obtain refractive index, extinction coefficient, and thickness of the films. The overall porosity of the films and the amount of adsorbed acetone vapors in the pores are quantified by means of Bruggeman effective medium approximation using already determined optical constants. The sensing properties of the samples are studied by measuring both the reflectance spectra and room-temperature photoluminescence spectra prior to and after exposure to acetone vapors and liquid, respectively. The potential of using the studied mesoporous Nb2O5films for chemooptical sensing is demonstrated and discussed.

Synthesis and Characterization of Magnetic Mesoporous Ɣ-FE2O3/SIO2

2014 ◽  
Vol 879 ◽  
pp. 128-133
Author(s):  
Nur Shuhada Shaari ◽  
Suhaina Mohd Ibrahim ◽  
Farinaa Md Jamil ◽  
Zuhana Ahmad Zubir ◽  
A.M. Abdullah ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Self Assembly ◽  
Quantum Interference ◽  
Silica Matrix ◽  
Synthesis And Characterization ◽  
Vibrating Sample Magnetometer ◽  
Superconducting Quantum Interference Device ◽  
Evaporation Induced Self Assembly

Magneticmesoporousɣ-Fe2O3/SiO2 synthesized using an evaporation-induced self-assembly (EISA) approach. The non-ionictriblock copolymer P123 was used as surfactant template with various amounts of iron oxide (1.8g-2.4g) and varied during the synthesis. Characterizations of the surface area and magnetic properties for prepared materials were done using N2-sorption analyses, and a superconducting quantum interference device interfaced with a vibrating sample magnetometer (SQUID-VSM) respectively. From this study, N2-sorption analysis indicated that most of the ɣ-Fe2O3domains of several nanometres were embedded in the silica matrix. In addition, the obtained magneticmesoporouscomposite which contains 2.3g amount ofiron oxide has revealedhigher magnetism saturation value of (4.564 emu/g) compared to other prepared samples which been evaluated by VSM analysis.

End-to-end self-assembly and colorimetric characterization of gold nanorods and nanospheres via oligonucleotide hybridization

2005 ◽  
Vol 16 (9) ◽  
pp. 1776-1780 ◽  
Author(s):  
Bifeng Pan ◽  
Limei Ao ◽  
Feng Gao ◽  
Hongye Tian ◽  
Rong He ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Self Assembly ◽  
Oligonucleotide Hybridization ◽  
Colorimetric Characterization ◽  
End To End

scholarly journals Synthesis and characterization of boron-doped ordered mesoporous carbon by evaporation induced self-assembly under HCl conditions

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8250-8257 ◽  
Author(s):  
Yan Zhang ◽  
Wenwen Dai ◽  
Yujian Liu ◽  
Binge Ma
Keyword(s):  
Self Assembly ◽  
Driving Force ◽  
Mesoporous Carbon ◽  
Boron Content ◽  
Mesoporous Structure ◽  
Synthesis And Characterization ◽  
Boron Doped ◽  
Ordered Mesoporous ◽  
Evaporation Induced Self Assembly

With double-layer hydrogen bonding and electrostatic Coulomb forces acting as the driving force, the obtained B-OMC has the well-ordered mesoporous structure, highest surface area (689.85 m2 g−1) and boron content (1.96 wt%) when pH = 4.

Fabrication of Organized Mesoporous TiO2 Films Assembled via Different Template and Characterization of their Photocatalytic Activity

2013 ◽  
Vol 669 ◽  
pp. 95-98
Author(s):  
Dan Li ◽  
Bin Du ◽  
Zhi Heng Zhao ◽  
Wen Heng Jing ◽  
Wei Hong Xing
Keyword(s):  
Photocatalytic Activity ◽  
Self Assembly ◽  
Sol Gel ◽  
Methyl Orange Solution ◽  
Mesoporous Films ◽  
Guest Molecules ◽  
Evaporation Induced Self Assembly ◽  
Diffusion Paths ◽  
Cubic Mesoporous

Hexagonal and cubic mesoporous TiO2 materials were synthesized via a sol-gel route modified by evaporation–induced self–assembly process with different templates. XRD and TEM results confirmed that the mesoporous films were highly organized. Furthermore, the hexagonal mesoporous TiO2 films were formed in the P123-templated films, whereas the cubic structure ones were found in the F127-templated films. Both the hexagonal and cubic mesoporous films showed photocatalytic activity in decomposing methyl orange solution under UV region, among which the cubic mesostructure presented superior potocatalytic activity because of larger surface area, more open framework and less obstructed diffusion paths of guest molecules.

Synthesis and Characterization of Yttria-Doped Mesoporous Zirconia

2014 ◽  
Vol 602-603 ◽  
pp. 212-215
Author(s):  
Rui Ping Liu ◽  
Chang An Wang
Keyword(s):  
Thermal Stability ◽  
Specific Surface ◽  
Self Assembly ◽  
Pore Volume ◽  
Textural Properties ◽  
Synthesis And Characterization ◽  
Bet Specific Surface Area ◽  
Mesoporous Zirconia ◽  
Evaporation Induced Self Assembly

The yttria-doped mesoporous zirconia was successfully synthesized by evaporation induced self-assembly (EISA) method, and the microstructure and textural properties of the as-made product were studied extensively. The results showed that the as-made product possessed crystallized framework walls and a worm-like mesopore with a narrow pore distribution. The BET specific surface area and pore volume of the as-made product calcined at 500°C are 111 m2/g and 0.16 cm3/g respectively, and the corresponding data changed to 73 m2/g and 0.052 cm3/g after calcined at 700°C, which indicated that the as-made yttria-doped mesoporous zirconia possess a higher thermal stability.

Synthesis and Characterization of Polydopamine-Coated Gold Nanorods

2017 ◽  
Vol 62 (1-2) ◽  
pp. 23-31
Author(s):  
L.C. Şuşu ◽  
◽  
A.M. Crăciun ◽  
S. Aştilean ◽  
◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Synthesis And Characterization
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