Flatbed Scanner
Flatbed Scanner - Related Videos
08:25
Using Flatbed Scanners to Collect High-resolution Time-lapsed Images of the Arabidopsis Root Gravitropic Response
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Cited by 6 •
2014
This protocol describes a process for rapid collection of images of Arabidopsis seedlings responding to a gravity stimulus using commercially-available flatbed scanners. The method allows for inexpensive, high-volume capture of high-resolution images amenable for downstream analysis algorithms.
07:01
Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
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Cited by 5 •
2016
A scanner for imaging magnetic particles in planar samples was developed using the planar frequency mixing magnetic detection technique. The magnetic intermodulation product response from the nonlinear nonhysteretic magnetization of the particles is recorded upon a two-frequency excitation. It can be used to take 2D images of thin biological samples.
08:36
Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner
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Cited by 2 •
2024
Quantitative measurements of oxygen and glucose metabolism by PET are established technologies, but details of practical protocols are sparsely described in the literature. This paper presents a practical protocol successfully implemented on a state-of-the-art positron emission tomography-computed tomography scanner.
02:47
Imaging and Quantifying Swarm Avoidance Responses to Antibiotic Stress in Pseudomonas aeruginosa
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2025
Source: Bru, J., et.al. Time-lapse Imaging of Bacterial Swarms and the Collective Stress Response. J. Vis. Exp. (2020)This video demonstrates how to visualize and measure swarm avoidance behavior in Pseudomonas aeruginosa using a swarming agar plate assay. It shows the setup for time-lapse imaging under controlled conditions and explains how antibiotic-induced stress signals redirect bacterial movement, which is quantified through image analysis.
03:33
Tissue Immunostaining for Imaging Mass Cytometry
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2026
Source:Jake Griner1, Arwen Wedgeworth2, Brenton Puckett2, Kacey Idouchi1, Slivia Guglietta2, Carsten Krieg11Department of Pathology and Laboratory Medicine, Medical University of South Carolina.2Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina.The video describes the preparation of a tissue sample for imaging mass cytometry. The tissue is first processed to unmask the antigen epitopes, permeabilize the cells, and block non-specific antibody binding...
FAQs
The moving sensor builds the image sequentially rather than capturing all pixels at once. As it travels, it measures reflected or transmitted light line by line, then converts those measurements into color or grayscale values for individual pixels. This scanning sequence produces a structured digital image from a specimen record or other two-dimensional biological material.
Illumination, resolution, and sample placement directly affect whether scans can be compared. Consistent lighting supports stable color or grayscale measurements, while consistent placement helps preserve the same spatial relationship between the object and sensor. Selecting an appropriate resolution determines how much visual detail is retained for documentation, measurement, or quantitative comparison.
CCD and CIS sensors are alternative components that can perform the line-by-line measurement in a flatbed scanner. The available information does not identify one as universally preferable, so the important experimental consideration is to keep the scanner and acquisition conditions consistent across samples. That consistency improves reproducibility in biological image comparisons.
To digitize a biological material, place the flat item on the scanner, illuminate it, and allow the sensor to move across it while recording successive lines. The resulting digital image can then be stored, shared, or analyzed. Keeping placement, lighting, and resolution consistent across scans makes the resulting visual records more comparable.
Resolution controls the amount of spatial detail represented in the digital image. Higher or lower settings can therefore influence how clearly features appear and how suitable a scan is for image-based measurement or quantitative comparison. The same resolution should be maintained when scans are intended to support reproducible comparisons among biological materials.
In biology, flatbed scans can preserve specimen records and anatomical illustrations, while also documenting culture plates and gels. These records support archiving, teaching, quantitative comparisons, and image-based measurement. Their value extends beyond a single observation because digital images are easier to store, analyze, and share, provided acquisition conditions remain consistent.