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

Heterogeneous Catalysis01:22

Heterogeneous Catalysis

128
Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
128
Catalysis02:50

Catalysis

32.5K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
32.5K
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

2.5K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
2.5K
Cycloaddition Reactions: MO Requirements for Photochemical Activation01:12

Cycloaddition Reactions: MO Requirements for Photochemical Activation

2.9K
Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
2.9K
The Photochemical Reaction Center01:29

The Photochemical Reaction Center

5.9K
Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
5.9K
Photosystem II01:22

Photosystem II

80.8K
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...
80.8K

You might also read

Related Articles

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

Sort by
Same author

In vitro bioanalytical assessment of aryl hydrocarbon and steroid receptor-mediated activities of primary and aged particulate emissions from residential pellet and logwood stoves.

Environment international·2026
Same author

ASO Visual Abstract: The Effect of Neoadjuvant Therapy on Post-Recurrence Overall Survival After Curative Resection for Intrahepatic Cholangiocarcinoma.

Annals of surgical oncology·2026
Same author

Baseline Liver Function Predicts Long-Term Survival Beyond Perioperative Outcomes After Liver Resection for Biliary Tract Cancer.

Annals of surgical oncology·2026
Same author

Sustained whole-chain ammonia mitigation in pig manure via acidogenic fermentation by-products.

Journal of hazardous materials·2026
Same author

Outcomes of liver resections for neuroendocrine tumor liver metastases in carcinoid heart disease.

Journal of neuroendocrinology·2026
Same author

The Effect of Neoadjuvant Therapy on Post-Recurrence Overall Survival After Curative Resection for Intrahepatic Cholangiocarcinoma.

Annals of surgical oncology·2026

Related Experiment Video

Updated: Apr 16, 2026

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber
09:46

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Published on: November 18, 2018

7.8K

Heterogeneous photochemistry in the atmosphere

Christian George1,2, Markus Ammann3, Barbara D'Anna1,2

  • 1†Université de Lyon 1, Lyon F-69626, France.

Chemical Reviews
|March 17, 2015
PubMed
Summary

No abstract available in PubMed .

More Related Videos

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
08:23

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry

Published on: June 14, 2018

9.3K
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

9.1K

Related Experiment Videos

Last Updated: Apr 16, 2026

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber
09:46

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Published on: November 18, 2018

7.8K
Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
08:23

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry

Published on: June 14, 2018

9.3K
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

9.1K