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

Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Photosystems01:32

Photosystems

Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
Functioning of Photosystems
Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
Photoelectric Effect02:26

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
Photosystem II01:22

Photosystem II

The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
Nucleotide Excision Repair01:38

Nucleotide Excision Repair

DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...

You might also read

Related Articles

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

Sort by
Same author

Lichen Planus Pemphigoides in Childhood.

Indian dermatology online journal·2026
Same author

Leflunomide-Induced Cutaneous Ulcers: A Rare Diagnostic Conundrum.

Indian dermatology online journal·2026
Same author

Folliculitis Decalvans and Lichen Planopilaris Phenotypic Spectrum-A Series of Four Patients.

Indian journal of dermatology·2026
Same author

A Case of Isolated Trichothiodystrophy.

Indian dermatology online journal·2025
Same author

Low Dose Vs Conventional Rituximab Regimen in Pemphigus Vulgaris - A Retrospective Single Centre Comparative Analysis to Assess the Clinical Efficacy and Cost-Effectiveness.

Indian dermatology online journal·2025
Same author

Knife-Cut Sign - A Distinctive Presentation of Herpes Simplex Virus in an Immunocompetent Patient.

Indian dermatology online journal·2025
Same journal

Severe Irritant Contact Dermatitis to <i>Cyperus Scariosus</i>: A Side Effect of Ayurvedic <i>Plava</i>.

Indian journal of dermatology·2026
Same journal

Extensive Grouped Papules on the Vulva in a Patient with Cervical Cancer.

Indian journal of dermatology·2026
Same journal

Facial Melanosis: A Comprehensive Review of Uncommon and Common Presentations with Personal Experience.

Indian journal of dermatology·2026
Same journal

Exploring AI as a Diagnostic Tool in Medical Imaging for Dermatopathological Diseases.

Indian journal of dermatology·2026
Same journal

Carotid Intima-Media Thickness and Retrobulbar Blood Flow in Patients with Psoriasis.

Indian journal of dermatology·2026
Same journal

Pyoderma Gangrenosum-Like Ulcer Secondary to Antiphospholipid Syndrome.

Indian journal of dermatology·2026
See all related articles

Related Experiment Video

Updated: May 17, 2026

High-Throughput Analysis of Non-Photochemical Quenching in Crops Using Pulse Amplitude Modulated Chlorophyll Fluorometry
10:08

High-Throughput Analysis of Non-Photochemical Quenching in Crops Using Pulse Amplitude Modulated Chlorophyll Fluorometry

Published on: July 6, 2022

Update on photoprotection.

Reena Rai1, Sekar C Shanmuga, Cr Srinivas

  • 1Department of Dermatology, PSG Hospitals, Coimbatore, India.

Indian Journal of Dermatology
|November 1, 2012
PubMed
Summary
This summary is machine-generated.

Sun protection using sunscreens, clothing, and glasses is vital for skin health. Achieving comprehensive photoprotection requires shielding against ultraviolet A, ultraviolet B, and infrared radiation for complete skin defense.

Keywords:
Photoprotectionsunscreensuv radiation

More Related Videos

Determining the Toxicity of UV Radiation and Chemicals on Primary and Immortalized Human Corneal Epithelial Cells
09:31

Determining the Toxicity of UV Radiation and Chemicals on Primary and Immortalized Human Corneal Epithelial Cells

Published on: July 22, 2021

Photo-Induced Cross-Linking of Unmodified Proteins (PICUP) Applied to Amyloidogenic Peptides
08:40

Photo-Induced Cross-Linking of Unmodified Proteins (PICUP) Applied to Amyloidogenic Peptides

Published on: January 12, 2009

Related Experiment Videos

Last Updated: May 17, 2026

High-Throughput Analysis of Non-Photochemical Quenching in Crops Using Pulse Amplitude Modulated Chlorophyll Fluorometry
10:08

High-Throughput Analysis of Non-Photochemical Quenching in Crops Using Pulse Amplitude Modulated Chlorophyll Fluorometry

Published on: July 6, 2022

Determining the Toxicity of UV Radiation and Chemicals on Primary and Immortalized Human Corneal Epithelial Cells
09:31

Determining the Toxicity of UV Radiation and Chemicals on Primary and Immortalized Human Corneal Epithelial Cells

Published on: July 22, 2021

Photo-Induced Cross-Linking of Unmodified Proteins (PICUP) Applied to Amyloidogenic Peptides
08:40

Photo-Induced Cross-Linking of Unmodified Proteins (PICUP) Applied to Amyloidogenic Peptides

Published on: January 12, 2009

Area of Science:

  • Dermatology and Photobiology

Background:

  • Sun exposure poses significant risks to skin health.
  • Effective photoprotection involves multiple strategies beyond simple sunscreens.

Purpose of the Study:

  • To review topical strategies for comprehensive skin photoprotection.
  • To discuss the necessity of broad-spectrum protection against solar radiation.

Main Methods:

  • Review of scientific literature on photoprotective agents.
  • Analysis of chemical and physical UV filters.
  • Examination of molecules that mitigate sun damage.

Main Results:

  • Sunscreens, clothing, and glasses are essential for photoprotection.
  • Complete protection necessitates shielding against UVA, UVB, and infrared radiation.
  • Combinations of filters and protective molecules offer broad-spectrum coverage.

Conclusions:

  • Topical photoprotection requires broad-spectrum agents to combat diverse solar wavelengths.
  • Combining UV filters with other protective molecules enhances skin defense against sun damage.