Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Applications of IR Spectroscopy: Overview01:11

Applications of IR Spectroscopy: Overview

1.8K
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,...
1.8K
Infrared (IR) Spectroscopy: Overview01:09

Infrared (IR) Spectroscopy: Overview

4.3K
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...
4.3K
IR Spectrometers01:25

IR Spectrometers

2.0K
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...
2.0K
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

4.1K
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...
4.1K
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

4.1K
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for...
4.1K
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

988
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...
988

You might also read

Related Articles

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

Sort by
Same author

[Climate protection: open technology initiative from users and manufacturers necessary].

Die Anaesthesiologie·2023
Same author

[Intraoperative transesophageal echocardiography for emergency diagnostics in noncardiac surgery patients].

Der Anaesthesist·2021
Same author

[Intraoperative transesophageal echocardiography as monitoring procedure in noncardiac surgery patients].

Der Anaesthesist·2021
Same author

[Limitations of a method].

Der Anaesthesist·2021
Same author

[Treatment of diabetes mellitus in perioperative medicine-an update].

Der Anaesthesist·2020
Same author

[Erratum to: 58-year-old male with sepsis after perforation of a sigmoid colon diverticulum : Preparation for the medical specialist examination: part 44].

Der Anaesthesist·2020

Related Experiment Video

Updated: Dec 9, 2025

High-definition Fourier Transform Infrared FT-IR Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology
11:05

High-definition Fourier Transform Infrared FT-IR Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology

Published on: January 21, 2015

33.7K

[Near-infrared spectroscopy : Technique, development, current use and perspectives].

D Bolkenius1, C Dumps2, B Rupprecht2

  • 1Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Augsburg, Stenglinstr. 2, 86156, Augsburg, Deutschland. daniel.bolkenius@uk-augsburg.de.

Der Anaesthesist
|September 15, 2020
PubMed
Summary

Near-infrared spectroscopy (NIRS) offers valuable insights into tissue oxygenation, particularly in pediatric and cardiac anesthesia. This review details its clinical applications, interpretation, and limitations for improved patient monitoring.

Keywords:
Cardiac surgical proceduresCerebral perfusionInfantOxygenationVascular surgery

More Related Videos

O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression
06:50

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

Published on: November 8, 2019

6.9K
Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology
04:44

Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology

Published on: March 22, 2024

1.3K

Related Experiment Videos

Last Updated: Dec 9, 2025

High-definition Fourier Transform Infrared FT-IR Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology
11:05

High-definition Fourier Transform Infrared FT-IR Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology

Published on: January 21, 2015

33.7K
O-cresol Concentration Online Measurement Based On Near Infrared Spectroscopy Via Partial Least Square Regression
06:50

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

Published on: November 8, 2019

6.9K
Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology
04:44

Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology

Published on: March 22, 2024

1.3K

Area of Science:

  • Anesthesiology
  • Biomedical Engineering
  • Physiology

Background:

  • Near-infrared spectroscopy (NIRS) has been utilized in clinical and research settings for over 40 years.
  • Recent advancements have spurred numerous publications and developments in NIRS technology and application.
  • NIRS provides non-invasive monitoring of tissue oxygenation, crucial in various medical fields.

Purpose of the Study:

  • To review the clinical applications of NIRS in pediatric and cardiac anesthesia, aligning with current guidelines.
  • To elucidate the technical and physiological principles underlying NIRS measurements.
  • To discuss practical aspects including influencing factors, derived variables, and interpretation strategies.

Main Methods:

  • Comprehensive literature review focusing on clinical applications, technical principles, and physiological factors of NIRS.
  • Analysis of derived NIRS variables like fractional oxygen extraction (FOE) and cerebral oxygen index (COx).
  • Comparison of NIRS with other monitoring techniques such as pulse oximetry and transcranial Doppler sonography.

Main Results:

  • NIRS applications in pediatric and cardiac anesthesia are detailed, with emphasis on interpretation guidelines.
  • Key physiological factors influencing NIRS readings (e.g., oxygen transport, gas exchange, circulation) are identified.
  • Limitations, device comparability issues, and the need for standardized values are highlighted.

Conclusions:

  • NIRS is a valuable tool in anesthesia, but careful interpretation considering influencing factors is essential.
  • An algorithm for cardiac anesthesia is proposed to aid in NIRS data utilization.
  • Further research is needed to establish prognostic significance and standardized NIRS protocols.