Related Experiment Video
Updated: Feb 10, 2026
06:47
In Utero Electroporation of Multiaddressable Genome-Integrating Color MAGIC Markers to Individualize Cortical Mouse Astrocytes
Published on: May 21, 2020
6.0K
Imaging the dynamics of individual electropores
Jason T Sengel1, Mark I Wallace2
1Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom;
Summary
Researchers visualized individual electropores in real-time using optical single-channel recording. Electropores are mobile, fluctuate in size, and form preferentially in specific membrane phases, revealing complexities beyond current models.
Area of Science:
- Biophysics
- Membrane Biology
- Cellular Electrophysiology
Background:
- Electroporation is crucial for cell membrane permeabilization.
- The precise mechanism of voltage-induced pore formation remains incompletely understood.
- Real-time visualization of individual electropores is needed to elucidate dynamics.
Purpose of the Study:
- To visualize and characterize the dynamic behavior of individual electropores in real-time.
- To investigate the influence of membrane phase on electropore formation.
- To test the validity of the hydrophilic toroidal pore model.
Main Methods:
- Optical single-channel recording technique.
- Utilized planar droplet interface bilayers for membrane studies.
- Tracked multiple isolated electropores simultaneously.
Main Results:
- Observed individual, mobile defects (electropores) with fluctuating sizes.
- Identified fast (25 s⁻¹) and slow (2 s⁻¹) gating components in small electropores.
- Electropores showed preferential formation within the liquid disordered membrane phase.
- Dynamics and energetics revealed complexities beyond the toroidal pore model.
Conclusions:
- The study provides real-time insights into electropore dynamics and behavior.
- Findings support the hydrophilic toroidal pore model but highlight additional complexities.
- Visualizing individual electropore behavior advances understanding of electroporation mechanisms.
Related Concept Videos
01:24Dosage Regimen: Individualization
196
Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...
196
01:30Impact of Individuals on Individuals
403
Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...
403
01:28Impact of Groups on Individuals
371
Groups play a fundamental role in shaping individual behavior, as they establish norms that guide interactions and decision-making. Social psychology examines how individuals conform to group expectations, often adjusting their attitudes and actions to align with group norms. These norms can be formal, such as workplace policies, or informal, such as unspoken social expectations within a fraternity.Conformity and Social InfluenceConformity arises when individuals modify their behaviors or...
371
01:25Impact of Individuals on a Group
338
In social psychology, the interplay between individuals and groups is a central concern, particularly regarding how individual actions and characteristics influence group processes and outcomes. While much research emphasizes the group's power in shaping individual behavior, it is equally significant to understand how individuals contribute to the functioning, development, and success of groups.Individual Roles in Group Productivity and Decision-MakingIndividuals are not passive participants in...
338
02:20Dynamic Equilibrium
63.3K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
63.3K
01:28Adler's Individual Psychology
2.4K
Alfred Adler, a prominent figure in psychology, founded the school of individual psychology. In contrast to Freud's emphasis on sexual or aggressive motives, Adler suggested that individuals are primarily motivated by their purposes and goals. He believed that people strive for perfection rather than pleasure. Adler argued that individuals could creatively act upon their genetic inheritance and environmental experiences to shape their own lives, emphasizing conscious motivation over...
2.4K