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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
Studying the Cytoskeleton01:17

Studying the Cytoskeleton

The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
Mass Spectrometry: Complex Analysis01:21

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...

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Related Experiment Video

Updated: May 13, 2026

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
08:34

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy

Published on: February 5, 2020

Atomic force microscope mediated chromatography.

M S Anderson1

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA. Mark.S.Anderson@jpl.nasa.gov

The Review of Scientific Instruments
|March 8, 2013
PubMed
Summary
This summary is machine-generated.

Atomic force microscopy (AFM) enables rapid, miniaturized chromatography (AFM-MC) for trace chemical analysis. This technique significantly reduces size and separation times, offering new microfluidic applications.

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Last Updated: May 13, 2026

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
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Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy
08:30

Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy

Published on: July 18, 2011

Area of Science:

  • Analytical Chemistry
  • Nanotechnology
  • Surface Science

Background:

  • Traditional chromatography methods face limitations in speed and scale.
  • Microfluidic devices offer potential for miniaturization but require advanced analytical techniques.
  • Atomic force microscopy (AFM) provides high-resolution surface imaging and manipulation capabilities.

Purpose of the Study:

  • To present atomic force microscopy (AFM) as a novel platform for rapid, miniaturized chromatography.
  • To demonstrate the integration of sample injection, separation, and detection within an AFM framework.
  • To showcase the potential of AFM-mediated chromatography (AFM-MC) for trace chemical analysis.

Main Methods:

  • Utilizing AFM to inject samples onto a functionalized substrate.
  • Employing shear-driven liquid flow for component separation.
  • Analyzing separated components using surface-enhanced Raman spectroscopy (SERS) with AFM-deposited gold nanoparticles.
  • Demonstrating AFM-MC with lipophilic dyes and normal-phase chemistry.

Main Results:

  • Achieved miniaturized separations on a 25 μm length scale.
  • Demonstrated separation times as short as 1 second.
  • Successfully analyzed separated lipophilic dye components.
  • Validated the AFM-MC technique for trace chemical analysis.

Conclusions:

  • AFM-mediated chromatography (AFM-MC) offers a significant reduction in both size and separation time.
  • This technique integrates multiple chromatographic functions within a single AFM instrument.
  • AFM-MC presents a versatile approach for microfluidics and trace chemical analysis.