![](images/graphics/blank.gif)
Raman scattering
-
Self-assembled functional nanomaterials with electromagnetic (EM) hot spots and chemical (CM) enhancement have been recognized as a key in surface-enhanced Raman scattering (SERS) analysis. Herein, a dual-hybrid plasmonic coupling SERS sensor composed of rutile TiO2 nanorod arrays (r-TNRs), Au nanospheres (AuNSs), and Ag nanocubes (AgNCs) has been designed to achieve ultrasensitive detection and obtain unique molecular fingerprints.
13p
visergeyne
18-06-2024
0
0
Download
-
In this work, we present a study of phonon hardening of 762 cm-1 phonon which is the strongest Raman-active mode in pyrochlore Cd2Os2O7 single crystal through temperature dependent Raman scattering. We discuss that the major contribution of the phonon hardening and the anomarlie behavior of asymmetry Fano parameter would involve to spin-phonon coupling and electronphonon coupling.
8p
viambani
18-06-2024
2
1
Download
-
Ebook "Raman spectroscopy of conformational rearrangements at low temperatures: Folding and stretching of alkanes in supersonic jets" identifies the turning point in chain length, after which alkanes self-solvate into a folded structure instead of an extended stretched conformation. After this turning point, London dispersion forces rearrange isolated n-alkanes into a particular hairpin-structure, while for shorter chain lengths, a simple stretched conformation is energetically preferred.
193p
tudohanhtau1006
29-03-2024
1
1
Download
-
Ebook "Novel optical nanoprobes for chemical and biological analysis" starts with a brief introduction to several kinds of versatile nanomaterials with novel optical properties, such as gold/silver nanoparticles, quantum dots, upconversion nanoparticles and graphene. It mainly focuses on the latest sensor design strategies, which apply the optical properties of nanomaterials to various detection techniques including colorimetry, fluorescence, and surface-enhanced Raman scattering (SERS).
105p
nhanphanguyet
28-01-2024
2
2
Download
-
Ebook "Optical spectroscopy and computational methods in biology and medicine" gives a comprehensive overview of recent progress in various vibrational spectroscopic techniques and chemometric methods and their applications in chemistry, biology and medicine. In order to meet the needs of readers, the book focuses on recent advances in technical development and potential exploitations of the theory, as well as the new applications of vibrational methods to problems of recent general interest that were difficult or even impossible to achieve in the not so distant past.
540p
nhanphanguyet
28-01-2024
4
2
Download
-
Ebook "Quasielastic neutron scattering: Principles and applications in solid state chemistry, biology, and materials science" is to provide a state of the art exposition of quasielastic neutron scattering both for specialists in this subject and for those who work in related fields such as NMR, infrared and Raman spectroscopy. Quasielastic Neutron Scattering starts with a thorough grounding in basic theory and then describes the instruments and methods used in cold neutron scattering such as neutron spin-echo spectrometers.
444p
loivantrinh
29-10-2023
3
2
Download
-
A portable and simple Raman scattering and photoluminescence spectroscopy system was set up for sensitive and rapid determination of nitrate/nitrite at low concentrations in water samples. The SERS (Surface Enhanced Raman Scattering) e active Ag/ITO substrates were prepared and employed to obtain the enhanced Raman scattering light from the sample.
6p
viberbers
09-08-2023
3
3
Download
-
High order plasmonic types by integrating a novel heterogeneous plasmonic and flexible model based on the co-existence of Ag nanospheres (NSs) and Ag nanocubes (NCs) are introduced. The point-to-facet type in these hybrid shapes produces surface-enhanced Raman scattering (SERS) signals many-fold larger than in single-plasmonic constructs.
15p
viberbers
09-08-2023
4
3
Download
-
We report on the improved stability and yield of silver nanorods with well controlled aspect ratios synthesized using a modified seed mediated approach conducted at room temperature. It is found that the longitudinal surface plasmon resonance of these nanoparticles can be tuned in the spectral range 400e 700 nm by varying the concentration of seed particles.
10p
viberbers
09-08-2023
7
4
Download
-
In this work, a functional nanocomposite consisting of silver nanoparticles and multiwalled carbon nanotubes (MWCNTs-Ag) was successfully synthesized using a two-step chemical process. The MWCNTsAg nanocomposite has been studied as a surface-enhanced Raman scattering (SERS) sensing platform for detection of methylene blue (MB) dye in an aqueous medium.
6p
viberbers
09-08-2023
6
4
Download
-
In this work, we present a quick and simple approach for fabrication of active-surfaceenhanced Raman scattering (SERS) substrates based on silver nanoparticles (AgNPs) and porous silicon nanostructures (denoted by Si/Ag substrate).
7p
viberkshire
09-08-2023
5
3
Download
-
In this study, tin oxide /reduced graphene oxide (SnO2/rGO) samples were prepared by hydrothermal method. The structural characteristics, phase composition, morphology and size of the samples were studied by X-ray diffraction, Raman scattering spectroscopy, and scanning electron microscopy, respectively.
8p
vispiderman
15-06-2023
5
2
Download
-
In this paper, we present simulation results for the LSPR characteristics of spherical AuNPs and triangular AuNPs with an average size below 100 nm. The effect of the particles’ shape, size as well as the surrounding medium, and the polarization of incident light, the inter-particle separation distance between NPs were examined.
11p
vispiderman
15-06-2023
4
2
Download
-
In this work, porous silicon photonic crystals (PSi PhCs) covered by silver nanoparticles (AgNPs) were prepared as surface-enhanced Raman scattering (SERS) substrate to detect methylene blue (MB) at low concentrations.
8p
vispiderman
15-06-2023
4
2
Download
-
In this study, a surface-enhanced Raman scattering (SERS) substrate based on an octahedral nanostructure of cuprous oxide (Cu2O) was fabricated to probe methylene blue (MB) molecules. Cu2O nanocrystals were synthesized by the solvothermal process using ethylene glycol, which plays both roles of reductant and organic solvent.
10p
vispiderman
15-06-2023
2
2
Download
-
Surface Enhanced Raman Scattering (SERS) is a technique that is increasingly being used to detect trace amounts of various types of molecules, especially organic and biological molecules. The SERS effect is available mainly due to the SERS substrate - a noble metal surface that is rough at the nano level or a set of noble metal nanoparticles in a certain arrangement.
12p
vispiderman
15-06-2023
2
1
Download
-
The surface-enhanced Raman scattering (SERS) phenomenon of 2,4,5- trichlorophenoxyacetic acid (2,4,5-T) adsorbed on Au20 pyramidal cluster is studied by Density Functional Theory. All possible adsorption configurations between the adsorbate and the Au20 clusters are evaluated and the vibrational assignments of normal Raman and SERS spectra are analyzed.
11p
vidudley
20-02-2023
2
2
Download
-
The objective of this project was to develop \(Ti{O_2}\) based multifunctional substrates through silver decoration, while simultaneously enhancing the photocatalytic performance of \(Ti{O_2}\) in the substrate. Employing Ag nanoparticles introduced additional functionality to the system, namely surface-enhanced Raman scattering (SERS), thus enabling the detection of trace amounts of organic molecules prior to their degradation, all with the same substrate.
123p
runthenight04
02-02-2023
5
1
Download
-
In this study, the effects of Fe dopant on the structural, optical, and electrical properties of NiTiO3 materials prepared by sol-gel method were investigated. The prepared powders were investigated through X-ray diffraction, Raman scattering, scanning electron microscope, UV-visible absorption, vibrating sample magnetometer, electrical measurement to explore the structural, ferromagnetic, and electrical properties.
8p
viporsche
25-10-2022
6
2
Download
-
In this paper, we report on surface enhanced raman scattering substrates based on metal-film-coated silica nanoparticle monolayer. The silica nanoparticles having the diameter of 196 nm are assembled into close-packaged monolayer on silicon substrate by spin coating technique.
5p
viporsche
25-10-2022
16
4
Download