Macrofoam Swabs
Macrofoam Swabs - Related Videos
10:03
Swab Sampling Method for the Detection of Human Norovirus on Surfaces
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Cited by 40 •
2017
A macrofoam based sampling methodology was developed and evaluated for the detection and quantification of norovirus on environmental hard surfaces.
02:34
Quantification of Group B Streptococcus Load in the Mouse Vaginal Lumen via Swabbing and Chromogenic Culture
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2026
Source: Patras, K. A. & Doran, K. S. A Murine Model of Group B Streptococcus Vaginal Colonization. J. Vis. Exp. (2016)This video demonstrates the quantification of vaginal Group B Streptococcus (GBS) load in a mouse model using swabbing and chromogenic culture. It outlines the steps involved in sample collection, plating, and colony counting to quantify GBS load in the mouse vaginal lumen.
04:45
Swab-based Conjunctival Commensal Bacteria Isolation: A Technique to Isolate Commensal Bacteria from Conjunctiva of Murine Model
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2025
This video describes a swab-based technique to isolate viable commensal bacteria from the ocular conjunctiva. The technique can be used to profile the commensal bacterial microbiome of the conjunctiva, which plays a defensive role against pathogens.
07:13
Swabbing the Urban Environment - A Pipeline for Sampling and Detection of SARS-CoV-2 From Environmental Reservoirs
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Cited by 5 •
2021
A citizen science project was designed to recruit San Diego residents to collect environmental samples for SARS-CoV-2. A multilingual web-based platform was created for data submission using a user-friendly mobile device interface. A laboratory information management system facilitated the collection of thousands of geographically diverse samples with real-time outcome tracking.
01:55
COVID-19 / Coronavirus Outbreak: Performing a Nasal Swab Test on Patients inside a Rapidly Deployable Facility Optimized for Epidemics
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2020
While different types of diagnostic tests may be used to detect coronavirus disease, a nasopharyngeal swab test is the most common. The test must be performed by a trained healthcare provider. If cell culture is collected in a wrong manner, the diagnosis obtained may be incorrect. The World Health Organization (WHO) recommends that providers use a sterile dacron or rayon swab with a flexible, plastic shaft for deep nasal sampling. Cotton, calcium alginate swabs, or swabs with wooden sticks may...
FAQs
Open-cell foam increases the area that can contact a surface or specimen, allowing liquid and biological material to enter the head rather than remaining only at its exterior. When the foam is compressed, retained material can be released into a transport medium. This collection-to-release pathway supports more consistent preparation for downstream testing.
Consistent contact helps make samples more comparable across collection sites or specimens. Because the foam head can absorb fluid and interact with a substantial surface area, differences in how much material is contacted or recovered may influence the amount available for analysis. Standardized handling therefore helps reduce sampling variation before an assay begins.
Recovery depends on the transition from the foam head to the receiving medium. Material absorbed during sampling must be released by compression or elution so it becomes available for testing. If recovery is inconsistent, downstream measurements may vary even when the original specimen or surface contains similar biological material.
A basic workflow is to use the swab to sample a surface or specimen, then place the collected material into a transport medium or otherwise apply it where required. The released sample can then proceed to an appropriate laboratory assay. Keeping collection and transfer consistent helps connect the sampled material with the final result.
In infection research, Macrofoam Swabs can support surface sampling and microbial detection. They may also be used in antigen testing, while immunology studies can use collected material for immune-marker analysis. These applications rely on obtaining a representative sample and transferring enough recoverable material for the selected downstream measurement.
In immunology and infection studies, the swab is part of the pre-analytical process, the stage before the assay itself. Its absorption, contact, and release characteristics influence what material reaches testing. More consistent sampling and recovery can reduce variation between assays, improving confidence when comparing microbial, antigen, or immune-marker results.