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

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

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 electronic transitions. As a result...
Mutations01:35

Mutations

Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in the...

You might also read

Related Articles

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

Sort by
Same author

Measurement and modeling of diffuse ultraviolet radiation: A review.

Photochemistry and photobiology·2026
Same author

Effect of Vitamin D Supplementation on Cardiometabolic Outcomes in Older Australian Adults-Results from the Randomized Controlled D-Health Trial.

Nutrients·2026
Same author

High-dose vitamin D supplementation and prostate cancer progression: a phase II randomised trial in localised prostate cancer cases with intermediate risk of progression (ProsD).

British journal of cancer·2025
Same author

Solar ultraviolet radiation exposure, and incidence of childhood (0-19 years) malignant and non-malignant brain tumour in a US population-based dataset, 2000-2021.

European journal of epidemiology·2025
Same author

Ultraviolet radiation thin film dosimetry: A review of properties and applications.

Photochemistry and photobiology·2024
Same author

Factors impacting hospitalisation and related health service costs in cancer survivors in Australia: Results from a population data linkage study in Queensland (COS-Q).

Cancer medicine·2024
Same journal

Synthesis of tetrazole based donor-acceptor type fluorescent molecules and their interaction with transport protein bovine serum albumin.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
Same journal

Rational design of an S-scheme 2D/3D ZnIn<sub>2</sub>S<sub>4</sub>/K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> heterojunction for enhanced photocatalytic antibiotic degradation.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
Same journal

Chlorin e6-mediated sublethal photodynamic therapy modulates biomarkers in a murine lung cancer-derived in vitro cancer-associated fibroblast model.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
Same journal

Polyethyleneimine-protoporphyrin IX and its Zn(II) complex conjugates for photodynamic inactivation of Staphylococcus aureus on cucumber mesocarp surfaces.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
Same journal

Canopy chlorophyll fluorescence escape fraction under polychromatic irradiation.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
Same journal

Genomic analysis highlights a novel class of DPCF-type cyanobacteriochrome.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·2026
See all related articles

Related Experiment Video

Updated: Jun 10, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities

Published on: February 20, 2021

Phenothiazine UVA dosimeter: characteristics and performance.

Keqin Jia1, Alfio V Parisi, Michael G Kimlin

  • 1AusSun Research Laboratory, Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Australia.

Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology
|July 29, 2010
PubMed
Summary
This summary is machine-generated.

A new phenothiazine-mylar dosimeter accurately measures solar ultraviolet A (UVA) exposure. This reliable tool is suitable for population studies, showing no data degradation from storage or moderate temperatures.

More Related Videos

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
08:18

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application

Published on: October 3, 2015

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery
09:38

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery

Published on: April 14, 2016

Related Experiment Videos

Last Updated: Jun 10, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities

Published on: February 20, 2021

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
08:18

Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application

Published on: October 3, 2015

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery
09:38

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery

Published on: April 14, 2016

Area of Science:

  • Environmental Science
  • Photochemistry
  • Instrumentation

Background:

  • Solar ultraviolet A (UVA) radiation poses health risks.
  • Accurate assessment of population-wide UVA exposure is crucial.
  • Existing UVA measurement tools may have limitations in field applications.

Purpose of the Study:

  • To characterize a novel phenothiazine-mylar dosimeter for solar UVA exposure assessment.
  • To evaluate the dosimeter's performance under various environmental conditions.
  • To establish the reliability and reproducibility of the dosimeter for field studies.

Main Methods:

  • The phenothiazine-mylar dosimeter's sensitivity to UVA wavelengths (315-400 nm) was assessed.
  • Performance was evaluated through dose-response, temperature stability, long-term storage, and angular response tests.
  • Cosine error was quantified for varying angles of incidence.

Main Results:

  • The dosimeter demonstrated a clear UVA exposure response.
  • No significant impact of long-term storage post-exposure was observed.
  • The dosimeter remained stable at temperatures up to 30°C.
  • Angular response showed a cosine error of less than 0.1 for angles up to 70°.

Conclusions:

  • The phenothiazine-mylar dosimeter is a reliable and reproducible tool for solar UVA exposure assessment.
  • Its performance characteristics make it suitable for field-based studies involving population groups.
  • This dosimeter offers a viable method for monitoring population UVA exposure.