Advertisement

Topics

Hyperspectral depth-profiling with deep Raman spectroscopy for detecting chemicals in building materials.

08:00 EDT 31st August 2017 | BioPortfolio

Summary of "Hyperspectral depth-profiling with deep Raman spectroscopy for detecting chemicals in building materials."

Toxic chemicals inside building materials have long-term harmful effects on human bodies. To prevent secondary damage caused by the evaporation of latent chemicals, it is necessary to detect the chemicals inside building materials at an early stage. Deep Raman spectroscopy is a potential candidate for on-site detection because it can provide molecular information about subsurface components. However, it is very difficult to spectrally distinguish the Raman signal of the internal chemicals from the background signal of the surrounding materials and to acquire the geometric information of chemicals. In this study, we developed hyperspectral wide-depth spatially offset Raman spectroscopy coupled with a data processing algorithm to identify toxic chemicals, such as chemical warfare agent (CWA) simulants in building materials. Furthermore, the spatial distribution of the chemicals and the thickness of the building material were also measured from one-dimensional (1D) spectral variation.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Analyst
ISSN: 1364-5528
Pages:

Links

DeepDyve research library

PubMed Articles [9595 Associated PubMed Articles listed on BioPortfolio]

Time domain diffuse Raman spectrometer based on a TCSPC camera for the depth analysis of diffusive media.

We present a time domain diffuse Raman spectrometer for depth probing of highly scattering media. The system is based on, to the best of our knowledge, a novel time-correlated single-photon counting (...

A Direct Bicarbonate Detection Method Based on a Near-Concentric Cavity-Enhanced Raman Spectroscopy System.

Raman spectroscopy has great potential as a tool in a variety of hydrothermal science applications. However, its low sensitivity has limited its use in common sea areas. In this paper, we develop a ne...

Label-free Raman characterization of bacteria calls for standardized procedures.

Raman spectroscopy has gained relevance in single-cell microbiology for its ability to detect bacterial (sub)populations in a non-destructive and label-free way. However, the Raman spectrum of a bacte...

Critical-depth Raman spectroscopy enables home-use non-invasive glucose monitoring.

One of the most ambitious endeavors in the field of diabetes technology is non-invasive glucose sensing. In the past decades, a number of different technologies have been assessed, but none of these h...

Two-dimensional electronic-Raman spectroscopy.

We present a new technique, two-dimensional electronic-Raman spectroscopy (2DER), which combines femtosecond stimulated Raman spectroscopy and a pulse-shaper-assisted 2D spectroscopic scheme for the a...

Clinical Trials [2592 Associated Clinical Trials listed on BioPortfolio]

Confocal Raman Spectroscopy: in Vivo Measurement of Physiological Skin Parameters

The purpose of this study is to I. determine several skin parameters, for example natural moisturizing factor (NMF) and cholesterol, with Raman spectroscopy in vivo and II. compare...

Multimodal Spectroscopy (MMS) for in Vivo Noninvasive Assessment of Skin

The goal of this research program is to develop a simple, noninvasive diagnostic device for assessing skin pathology without the need for a biopsy. The device being studied is a single sys...

Non-invasive Glucose Measurement Using Laser Technology

This study is to evaluate the capability of Raman spectroscopy as a non-invasive method for monitoring concentrations of glucose by illuminating a small spot on the skin, collecting and an...

Raman Probe for In-vivo Diagnostics (During Oesophageal) Endoscopy

To develop and endoscopic Raman spectroscopy probe for delivery down and channel in an endoscope to make near instant assessments of the condition of the oesophagus without the need for ex...

Non-Invasive Detection of Tissue Oxygen Deprivation in Premature Infants With Patent Ductus Arteriosus.

The proposed research evaluates tissue oxygenation (StO2) as measured by resonance raman spectroscopy (RRS) in premature infants with and without patent ductus arteriosus (PDA). This is a ...

Medical and Biotech [MESH] Definitions

Analysis of the intensity of Raman scattering of monochromatic light as a function of frequency of the scattered light.

Spectroscopy technique which measures changes in organic compounds by tracking the spectral energy of absorption of HYDROGEN atoms.

An abnormal pattern of breathing characterized by alternating periods of apnea and deep, rapid breathing. The cycle begins with slow, shallow breaths that gradually increase in depth and rate and is then followed by a period of apnea. The period of apnea can last 5 to 30 seconds, then the cycle repeats every 45 seconds to 3 minutes.

A technique for detecting short-lived reactive FREE RADICALS in biological systems by providing a nitrone or nitrose compound for an addition reaction to occur which produces an ELECTRON SPIN RESONANCE SPECTROSCOPY-detectable aminoxyl radical. In spin trapping, the compound trapping the radical is called the spin trap and the addition product of the radical is identified as the spin adduct. (Free Rad Res Comm 1990;9(3-6):163)

Magnetic resonance spectroscopy involving detection of changes in the resonance of carbon-13 nuclei in organic molecules.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article