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

Electrochemical Gradient and Channel Proteins: An Overview01:21

Electrochemical Gradient and Channel Proteins: An Overview

An electrochemical gradient is a fundamental concept in biology and chemistry. It regulates the movement of ions across cell membranes. This movement is influenced by two factors:
The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell.  This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to the...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.

You might also read

Related Articles

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

Sort by
Same author

Expression and Function of Meflin in Human Endometrial Decidualization.

Reproductive medicine and biology·2026
Same author

Lymph node metastasis as a favorable prognostic factor in metastatic urothelial carcinoma with histological variants treated with pembrolizumab: a retrospective multicentric study (YUSHIMA study-04).

Japanese journal of clinical oncology·2026
Same author

Jasminumosides F-K, oligomeric secoiridoid glycosides from jasmin: the flowers of Jasminum sambac (L.) Aiton.

Journal of natural medicines·2026
Same author

One-Year Clinical Outcomes of Stentless Percutaneous Coronary Intervention Using Drug-Coated Balloon for True Bifurcation Lesions.

Journal of the Society for Cardiovascular Angiography & Interventions·2025
Same author

Immunogenicity and plasmid delivery pathways of non-invasive <i>Lactococcus lactis</i>-vectored mucosal DNA vaccination.

Infection and immunity·2025
Same author

Selective and Sequential Heterometallic Assembly in Amine/Imine Dendrimers.

Langmuir : the ACS journal of surfaces and colloids·2025

Related Experiment Video

Updated: May 22, 2026

Synthesis, Cellular Delivery and In vivo Application of Dendrimer-based pH Sensors
16:19

Synthesis, Cellular Delivery and In vivo Application of Dendrimer-based pH Sensors

Published on: September 10, 2013

Electron-transfer through potential gradient based on a dendrimer architecture.

Takane Imaoka1, Naoki Inoue, Kimihisa Yamamoto

  • 1Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta-cho, Midori-ku, Yokohama, 225-8503, Japan.

Chemical Communications (Cambridge, England)
|May 5, 2012
PubMed
Summary
This summary is machine-generated.

A novel dendritic nano-shell with phenylazomethine units rectifies electron transfer, enhancing photo-induced charge separation by stabilizing radical ion pairs.

More Related Videos

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation
14:46

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Published on: January 20, 2018

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging
11:27

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging

Published on: December 4, 2016

Related Experiment Videos

Last Updated: May 22, 2026

Synthesis, Cellular Delivery and In vivo Application of Dendrimer-based pH Sensors
16:19

Synthesis, Cellular Delivery and In vivo Application of Dendrimer-based pH Sensors

Published on: September 10, 2013

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation
14:46

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

Published on: January 20, 2018

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging
11:27

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging

Published on: December 4, 2016

Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Nanotechnology

Background:

  • Electron transfer is crucial for many photochemical processes.
  • Controlling electron transfer at the nanoscale is challenging.
  • Dendritic structures offer unique architectures for molecular design.

Purpose of the Study:

  • To design and synthesize a dendritic nano-shell capable of rectifying electron transfer.
  • To investigate the impact of this electron rectification on photo-induced charge separation.
  • To explore the role of phenylazomethine units in facilitating charge separation.

Main Methods:

  • Synthesis of a dendritic nano-shell using rigid phenylazomethine building blocks.
  • Characterization of the nano-shell's electronic properties.
  • Photophysical studies to assess charge separation efficiency.
  • Spectroscopic analysis to identify radical ion pair intermediates.

Main Results:

  • The dendritic nano-shell demonstrated efficient rectification of electron transfer.
  • Photo-induced charge separation was significantly enhanced.
  • The facilitated and stabilized radical ion pair played a key role in the enhanced separation.
  • Phenylazomethine units were confirmed to be essential for the observed rectification.

Conclusions:

  • Dendritic nano-shells based on rigid phenylazomethine units can effectively rectify electron transfer.
  • This electron rectification capability leads to significantly improved photo-induced charge separation.
  • The facilitated and stabilized radical ion pair is a critical intermediate for enhanced charge separation.