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

5.5K
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...
5.5K
Vibrating Concrete01:19

Vibrating Concrete

404
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
404
Leaky Scanning02:28

Leaky Scanning

5.7K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.7K
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

4.8K
When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
4.8K
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration01:16

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

3.0K
A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to...
3.0K
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.8K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Processing-driven chemical ordering and its effect on magnetic properties in a high entropy alloy.

Faraday discussions·2025
Same author

Does childhood TB or pneumonia impact COPD or asthma in adulthood?

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2025
Same author

Lisfranc Injury: a Comprehensive Analysis of LongTerm Outcomes - the Oswestry Experience.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2025
Same author

A Systematic Review and Meta-Analysis of the Outcomes of Reconstruction with Vascularised vs Non-Vascularised Bone Graft after Surgical Resection of Primary Malignant and Non-Malignant Bone Tumors.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2024
Same author

A Systemic Review of Primary Malignant Long Bone Tumors in Children and Adolescents.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2024
Same author

Viscosupplementation with High Molecular Weight Hyaluronic Acid for Hip Osteoarthritis: a Systematic Review and Meta-Analysis of Randomised Control Trials of the Efficacy on Pain, Functional Disability, and the Occurrence of Adverse Events.

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca·2024

Related Experiment Video

Updated: Feb 8, 2026

Measurement of Bioelectric Current with a Vibrating Probe
07:28

Measurement of Bioelectric Current with a Vibrating Probe

Published on: January 4, 2011

14.5K

ANITA-An active vibration cancellation system for scanning probe microscopy.

L Pabbi1, A R Binion1, R Banerjee1

  • 1Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA.

The Review of Scientific Instruments
|July 2, 2018
PubMed
Summary

This study introduces an active vibration cancellation method for scanning probe microscopes. It significantly reduces noise by digitally adding a drive signal to the Z-feedback loop, enabling use in high-vibration environments.

More Related Videos

Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
13:58

Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics

Published on: September 28, 2016

12.3K
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

9.5K

Related Experiment Videos

Last Updated: Feb 8, 2026

Measurement of Bioelectric Current with a Vibrating Probe
07:28

Measurement of Bioelectric Current with a Vibrating Probe

Published on: January 4, 2011

14.5K
Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
13:58

Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics

Published on: September 28, 2016

12.3K
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

9.5K

Area of Science:

  • Physics
  • Instrumentation
  • Materials Science

Background:

  • Scanning probe microscopes (SPMs) are highly sensitive instruments.
  • Vibrational noise from environmental sources degrades SPM performance.
  • This noise causes relative motion between the probe tip and sample, affecting Z-feedback.

Purpose of the Study:

  • To develop an active method for canceling vibrational noise in SPMs.
  • To enable SPM operation in environments with significant structural or acoustic vibrations.
  • To provide an accessible solution for enhancing SPM stability.

Main Methods:

  • Implemented an active cancellation process by introducing a drive signal into the Z-feedback loop.
  • Digitally calculated the drive signal using accelerometer-based vibration measurements.
  • Integrated the solution with existing SPM instrumentation without major modifications.

Main Results:

  • Successfully nullified the appearance of vibration in the Z-feedback signal.
  • Significantly reduced vibration-induced noise in SPM operation.
  • Demonstrated an inexpensive and easy-to-implement solution.

Conclusions:

  • The active cancellation method effectively mitigates vibrational noise in SPMs.
  • This technique allows for the deployment of sensitive SPMs in previously unsuitable noisy environments.
  • The solution is ideal for integration with high-vibration systems like pulse tube cryocoolers.