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Related Concept Videos

Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
Qualitative Analysis03:46

Qualitative Analysis

For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
Channel Rhodopsins01:11

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Precipitation of Ions03:11

Precipitation of Ions

Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
Gravimetry: Inorganic And Organic Precipitating Agents00:49

Gravimetry: Inorganic And Organic Precipitating Agents

In gravimetry, the precipitant is chosen carefully to obtain a pure solid that can be easily filtered. Common inorganic precipitants can be used to determine several cations and anions. In some cases, the formation of the same precipitate can be used to determine the cation and the anion. For example, the reaction of barium and chromate ions to give barium chromate is used to determine both barium and chromate. However, precipitates such as hydroxides, oxalates, and metal ammonium phosphates...

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Related Experiment Video

Updated: May 23, 2026

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments
12:04

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Published on: April 24, 2014

Red chlorophyll: the new barium?

G W Hennig1

  • 1Department of Physiology and Cell Biology, University of Nevada, Reno, NV 89557, USA. grant@medicine.nevada.edu

Neurogastroenterology and Motility
|April 12, 2012
PubMed
Summary
This summary is machine-generated.

New infrared imaging techniques allow non-invasive visualization of gastrointestinal (GI) motility in mice. This breakthrough uses diet-related autofluorescence, offering a safer alternative to traditional imaging methods for studying gut function.

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Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
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Last Updated: May 23, 2026

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Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
08:40

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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
09:46

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

Published on: August 19, 2013

Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Biomedical Engineering

Background:

  • Gastrointestinal (GI) motility imaging faces a resolution-invasiveness tradeoff.
  • Conventional methods like X-ray cinematography offer high resolution but pose ionization risks.
  • Slice-based techniques (ultrasound, MRI, CT) are safer but limited in imaging scope and speed.

Purpose of the Study:

  • To explore advances in infrared (IR) imaging for non-invasive GI tract visualization.
  • To highlight a novel method for dynamic imaging of intestinal motions in vivo.
  • To assess the implications of IR imaging combined with diet-related autofluorescence.

Main Methods:

  • Utilized infrared imaging technology for remote GI tract observation.
  • Employed diet-related autofluorescence triggered by standard mouse chow.
  • Captured dynamic intestinal motions in live mouse models.

Main Results:

  • Successfully visualized in vivo dynamic imaging of intestinal motions.
  • Demonstrated the efficacy of IR imaging combined with diet-related autofluorescence.
  • Provided a new, non-invasive approach to studying GI motility.

Conclusions:

  • Infrared imaging offers a promising, safe alternative for GI motility studies.
  • Diet-related autofluorescence enhances IR imaging capabilities for GI tract visualization.
  • This technique advances the non-invasive study of gastrointestinal function.