• No results found

Fluorescence Suppression Using Wavelength Modulated Raman Spectroscopy

Fluorescence suppression using wavelength modulated Raman spectroscopy in fiber probe based tissue analysis

Fluorescence suppression using wavelength modulated Raman spectroscopy in fiber probe based tissue analysis

... Raman spectroscopy is a powerful spectroscopic technique that yields chemical information from a sample by the analysis of photons, which are inelastically scattered from the vibrational modes of the ...

7

Detecting phenotypically resistant Mycobacterium tuberculosis using wavelength modulated Raman spectroscopy

Detecting phenotypically resistant Mycobacterium tuberculosis using wavelength modulated Raman spectroscopy

... Summary Raman spectroscopy is a non-destructive and label-free ...technique. Wavelength modulated Raman (WMR) spectroscopy was applied to investigate Mycobacterium tuberculosis ...

18

Quantitative detection of pharmaceuticals using a combination of paper microfluidics and wavelength modulated Raman spectroscopy

Quantitative detection of pharmaceuticals using a combination of paper microfluidics and wavelength modulated Raman spectroscopy

... Raman spectroscopy has proven to be an indispensable technique for the identification of various types of analytes due to the fingerprint vibration spectrum ...background fluorescence, combining ...

10

Label free haemogram using wavelength modulated Raman spectroscopy for identifying immune cell subset

Label free haemogram using wavelength modulated Raman spectroscopy for identifying immune cell subset

... of using Wavelength Modulated Raman Spectroscopy (WMRS) with suitable machine learning algorithms as a label-free method to distinguish between different closely lying immune cell ...

8

Optimisation of wavelength modulated Raman spectroscopy : towards high throughput cell screening

Optimisation of wavelength modulated Raman spectroscopy : towards high throughput cell screening

... of fluorescence suppres- sion techniques to standard Raman is generally considered as a time consuming ...of Raman bands which allows reduction of the acquisition time whilst retaining appropriate ...

5

Towards automated cancer screening : label free classification of fixed cell samples using wavelength modulated Raman spectroscopy

Towards automated cancer screening : label free classification of fixed cell samples using wavelength modulated Raman spectroscopy

... testing using optical ...the modulated Raman acquisition between SiHa and CaSki cells, which represent primary and metastatic cervical carcinoma respectively, also points towards greater clinical ...

11

Depth resolved multimodal imaging : wavelength modulated spatially offset Raman spectroscopy with optical coherence tomography

Depth resolved multimodal imaging : wavelength modulated spatially offset Raman spectroscopy with optical coherence tomography

... Our experimental results from complex lard-polystyrene phantoms show that our multimodal WM-SORS/OCT sys- tem can penetrate 1.2mm deep into highly scattering media to acquire Raman signals from the hidden targets. ...

7

Modulated Raman spectroscopy for enhanced cancer diagnosis at the cellular level

Modulated Raman spectroscopy for enhanced cancer diagnosis at the cellular level

... is Raman spectroscopy. However, limited by the lower Raman cross-section and strong fluorescence background, complex and sophisticated instruments are usually required, so many commercial ...

25

The use of Wavelength Modulated Raman Spectroscopy in label free identification of T lymphocyte subsets, Natural Killer cells and Dendritic cells

The use of Wavelength Modulated Raman Spectroscopy in label free identification of T lymphocyte subsets, Natural Killer cells and Dendritic cells

... length Modulated Raman Spectroscopy, to achieve label-free identification of purified, un- fixed and untouched populations of major immune cell subsets isolated from healthy human ...donors. ...

14

Modulated Raman spectroscopy for enhanced identification of bladder tumor cells in urine samples

Modulated Raman spectroscopy for enhanced identification of bladder tumor cells in urine samples

... weak Raman signals from biomedical samples and therefore hide these Raman ...several fluorescence-suppression methods have been developed, all with the aim of removing the fluorescence ...

8

Detection Of Breast & Cervical Cancer Using Raman Spectroscopy

Detection Of Breast & Cervical Cancer Using Raman Spectroscopy

... Fig.1: Raman spectrum of diamond recorded for the calibration of Raman set-up The laser power at the site of the sample during signal acquisition was 15 mW while the integration time was 120 ...by ...

6

Plasmon-Enhanced Raman and Fluorescence Spectroscopy with Gold and Silver Nanoparticles

Plasmon-Enhanced Raman and Fluorescence Spectroscopy with Gold and Silver Nanoparticles

... 13 it goes directly into one of the excited states of the molecule. The Raman intensities, then, are determined by the properties of the excited state. The coupling of the vibrational modes of a molecule to its ...

183

Tissue diagnosis using power sharing multifocal Raman micro spectroscopy and auto fluorescence imaging

Tissue diagnosis using power sharing multifocal Raman micro spectroscopy and auto fluorescence imaging

... The diagnostic model was built with a series steps; firstly, a quality control to remove the spectra when the intensities are saturated, as this is normally from the contamination and burnt to the samples; secondly, ...

14

Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy

Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy

... Laser spectroscopy represents a very useful tool for chem- ical ...particular, Raman and fluorescence spec- troscopy are successfully used in detection of biological in vivo analysis and ...

8

Through barrier detection of ethanol using handheld Raman spectroscopy — Conventional Raman versus spatially offset Raman spectroscopy (SORS)

Through barrier detection of ethanol using handheld Raman spectroscopy — Conventional Raman versus spatially offset Raman spectroscopy (SORS)

... baselined using a high order ...offset using a scaled ...obtained using PET as a barrier to ethanol by means of CR or SORS, PCA was performed on the first order derivative spectra obtained by SORS ...

19

Using Raman spectroscopy to characterize biological materials

Using Raman spectroscopy to characterize biological materials

... the Raman spectrum in units of ...to Raman shift, typically reported in wavenumbers, is a multi-step ...performed using manual or computerised beam-steers and should be checked regularly to optimise ...

50

Vibrational Raman Spectroscopy

Vibrational Raman Spectroscopy

... broad Raman scattering background. Fortunately, water exhibits only weak Raman scattering, and the symmetric stretching vibration of an oxoanion, labeled as ν 1 (A 1 ), is usually observable as the most ...

5

Raman spectroscopy of graphite

Raman spectroscopy of graphite

... is Raman active at the Γ point and (ii) can couple electronic states exactly at the K and K points of the Brillouin ...double-resonant Raman signal and the origin of the D ...

18

Raman Spectroscopy Basics

Raman Spectroscopy Basics

... that Raman bands that are very weak and unnoticeable in spontaneous Raman spectra can appear in ...conventional Raman might not be present in SERS at ...

5

Raman spectroscopy Lecture

Raman spectroscopy Lecture

... The Raman shifts correspond to those of infrared shifts, but the intensities are ...of Raman scattered components is much lower than the Rayleigh-scattered component, because the probability of inelastic ...

59

Show all 10000 documents...

Related subjects