Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Infrared (IR) Spectroscopy: Overview

Infrared (IR) Spectroscopy: Overview

When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...

Applications of IR Spectroscopy: Overview

Applications of IR Spectroscopy: Overview

The non-destructive nature and ability to provide valuable chemical information make IR spectroscopy a versatile technique with broad applications in various scientific and industrial fields. IR spectroscopy is commonly used to identify and characterize organic and inorganic compounds. It provides information about the functional groups present in a molecule and the bonding between atoms. This helps in the structural elucidation of compounds during organic synthesis, pharmaceutical research,...

IR Spectroscopy: Molecular Vibration Overview

IR Spectroscopy: Molecular Vibration Overview

When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...

IR Spectrometers

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to the...

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Carbapenem-resistant Enterobacterales across the UK: a nationwide study of carbapenemase testing and novel antimicrobial activity.

International journal of antimicrobial agents·2026

Same author

Advancing Equity in Perinatal and Neonatal Care: Family Experience, Structural Change, and Clinical Outcomes.

The Journal of perinatal & neonatal nursing·2026

Same author

Conservative Oxygen for Unresponsive Patients after Cardiac Arrest.

The New England journal of medicine·2026

Same author

Rural and urban disparities in postpartum glucose screening rates.

Women's health (London, England)·2026

Same author

Introduction.

Seminars in fetal & neonatal medicine·2026

Same author

Microplastics Facilitate Protozoan Pathogen Contamination in Shellfish.

Microorganisms·2026

Search research articles

Related Experiment Video

Updated: May 27, 2026

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression

Published on: November 8, 2019

Understanding near-infrared spectroscopy.

Terri Marin¹, James Moore

¹Emory University School of Nursing, Atlanta, Georgia, USA.

Advances in Neonatal Care : Official Journal of the National Association of Neonatal Nurses

|November 30, 2011

Summary

This summary is machine-generated.

Near-infrared spectroscopy (NIRS) offers continuous, noninvasive monitoring of tissue oxygenation and perfusion in neonates. This technology can enhance awareness of perfusion status, potentially reducing risks of ischemic injury in preterm infants.

More Related Videos

Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation

Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation

Published on: October 8, 2011

Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy

Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy

Published on: January 19, 2019

Related Experiment Videos

Last Updated: May 27, 2026

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression

Published on: November 8, 2019

Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation

Using MazeSuite and Functional Near Infrared Spectroscopy to Study Learning in Spatial Navigation

Published on: October 8, 2011

Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy

Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy

Published on: January 19, 2019

Area of Science:

Biomedical Engineering
Neonatology
Physiology

Background:

Near-infrared spectroscopy (NIRS) is a noninvasive optical technique.
It measures regional tissue oxygenation, reflecting perfusion status.
NIRS can continuously monitor multiple organ systems at the bedside.

Purpose of the Study:

To provide an overview of NIRS technology and its function.
To discuss the current applications of NIRS in neonatology.
To highlight research findings on NIRS benefits in the neonatal population.

Main Methods:

Review of NIRS technology principles.
Analysis of existing research on NIRS in neonatal care.
Discussion of clinical applications and potential benefits.

Main Results:

NIRS demonstrates utility in monitoring cerebral, intestinal, and renal perfusion.
It aids in detecting potential ischemic episodes.
NIRS can augment current physiologic monitoring for preterm infants.

Conclusions:

NIRS can increase awareness of abnormal perfusion in neonates.
It may reduce risks associated with diseases leading to ischemic injury.
NIRS has the potential to become a key diagnostic and prognostic tool in neonatal care.