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

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

6.1K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
6.1K
Semiconductors01:22

Semiconductors

2.0K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
2.0K
Self-Evaluation Maintenance Model01:29

Self-Evaluation Maintenance Model

404
The Self-Evaluation Maintenance (SEM) model offers a psychological framework to understand how individuals’ self-esteem is influenced by the achievements of others, particularly those with whom they share close personal bonds. The SEM model operates when personal rather than social identity guides individuals. Central to this model is the notion that individuals have an inherent desire to preserve a favorable self-image, which is continuously shaped by interpersonal comparisons and...
404
Preparation of Samples for Electron Microscopy01:20

Preparation of Samples for Electron Microscopy

8.0K
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
8.0K
Types of Semiconductors01:20

Types of Semiconductors

1.9K
Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
1.9K
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

1.4K
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
1.4K

You might also read

Related Articles

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

Sort by
Same author

Comparative developmental competence and gene expression in laparoscopically retrieved- and abattoir-derived goat oocytes.

Frontiers in veterinary science·2026
Same author

<i>Salmonella enterica serovar Typhimurium-</i>induced alterations in inflammatory chemokine mRNA expressions and hemato-biochemical variations in three different strains of chicken.

Frontiers in genetics·2026
Same author

The prevalence and prognostic impact of additive abnormal stress exercise markers in patients with normal stress myocardial perfusion imaging.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology·2025
Same author

3D-Printed-Cryogel-Impregnated Functionalized Scaffold Augments Bone Regeneration in Critical Tibia Fracture in Goat.

Advanced healthcare materials·2024
Same author

Chronic Exposure to E-Cigarettes Elevates CYP2A5 Activity, Protein Expression, and Cotinine-Induced Production of Reactive Oxygen Species in Mice.

Drug metabolism and disposition: the biological fate of chemicals·2024
Same author

Identification of 5-Hydroxycotinine in the Plasma of Nicotine-Treated Mice: Implications for Cotinine Metabolism and Disposition in Vivo.

Drug metabolism and disposition: the biological fate of chemicals·2022

Related Experiment Video

Updated: Apr 15, 2026

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples
10:57

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples

Published on: February 3, 2017

30.7K

A unique complication of SEMS.

Ahmed Z Kaleem1, Ramana Kallam1, Syed M Ahmad1

  • 1Department of Colorectal Surgery, Northern Lincolnshire and Goole Hospital NHS Foundation Trust, Scunthorpe General Hospital Scunthorpe, North Lincolnshire, DN15 7BH, United Kingdom.

Clinical Case Reports
|April 4, 2015
PubMed
Summary

Intraperitoneal stent migration is a potential cause of treatment failure. Consider this complication if a stent fails to achieve clinical success after insertion.

Keywords:
Colonoscopycolorectal cancercolorectal diseasescolorectal pathologycolorectal surgery

More Related Videos

Serial Block-Face Scanning Electron Microscopy SBF-SEM of Biological Tissue Samples
09:21

Serial Block-Face Scanning Electron Microscopy SBF-SEM of Biological Tissue Samples

Published on: March 26, 2021

8.8K
Visualizing Membrane Ruffle Formation using Scanning Electron Microscopy
08:05

Visualizing Membrane Ruffle Formation using Scanning Electron Microscopy

Published on: May 27, 2021

3.4K

Related Experiment Videos

Last Updated: Apr 15, 2026

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples
10:57

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples

Published on: February 3, 2017

30.7K
Serial Block-Face Scanning Electron Microscopy SBF-SEM of Biological Tissue Samples
09:21

Serial Block-Face Scanning Electron Microscopy SBF-SEM of Biological Tissue Samples

Published on: March 26, 2021

8.8K
Visualizing Membrane Ruffle Formation using Scanning Electron Microscopy
08:05

Visualizing Membrane Ruffle Formation using Scanning Electron Microscopy

Published on: May 27, 2021

3.4K

Area of Science:

  • Medical device technology
  • Surgical complications

Background:

  • Stent insertion is a common procedure for various medical conditions.
  • Treatment success is typically evaluated by clinical outcomes post-procedure.

Purpose of the Study:

  • To highlight intraperitoneal stent migration as a potential cause of failed stent insertion.
  • To emphasize the importance of considering stent migration in cases of unsuccessful outcomes.

Main Methods:

  • This is a conceptual analysis based on clinical observation.
  • Review of cases with failed stent outcomes.

Main Results:

  • Intraperitoneal stent migration can lead to a lack of clinical success.
  • Failure to achieve desired clinical outcomes may indicate stent migration.

Conclusions:

  • Intraperitoneal stent migration is a critical complication to consider.
  • Evaluation for stent migration is necessary when clinical success is not achieved post-stent insertion.