Cellulose Paper Discs
Cellulose Paper Discs - Related Videos
09:04
Covalent Binding of Antibodies to Cellulose Paper Discs and Their Applications in Naked-eye Colorimetric Immunoassays
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Cited by 14 •
2016
In this manuscript, periodate oxidation and glutaraldehyde cross-linking methods for covalent immobilization of antibodies on paper discs are presented. The binding activity of immobilized antibodies was evaluated. Based on these results, a glutaraldehyde cross-linking method was used to develop a novel paper-based immunoassay for immunoglobulin G (IgG) detection.
04:48
A Paper-Based Immunoassay for the Detection of Immunoglobulin G
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2025
The video demonstrates a paper-based immunoassay, involving amine-functionalized cellulose discs cross-linked with glutaraldehyde. Covalent immobilization of IgG-Fc-specific capture antibodies, followed by the introduction of immunoglobulin G and horseradish peroxidase-conjugated detection antibodies, results in a color change confirming the presence of immunoglobulin G.
01:30
Reading Research Papers
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2026
Research articles are structured documents designed to communicate scientific findings efficiently and transparently. Rather than reading them sequentially like a narrative, readers can approach them strategically by understanding their standardized organization. Evaluating the title, authors, and institutional affiliations provides an initial indication of relevance, expertise, and credibility. The Abstract offers a concise summary of the study’s objective, methodology, and main findings,...
07:25
Green and Low-cost Production of Thermally Stable and Carboxylated Cellulose Nanocrystals and Nanofibrils Using Highly Recyclable Dicarboxylic Acids
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Cited by 22 •
2017
Here we demonstrate a novel method for green and sustainable productions of highly thermally stable and carboxylated cellulose nanocrystals (CNC) and nanofibrils (CNF) using highly recyclable solid dicarboxylic acids.
05:40
Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper
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2019
A protocol for the non-destructive analysis of the fiber content and relative age of paper.
FAQs
After an impregnated disc contacts an agar culture, the antimicrobial substance moves outward through the surrounding medium. Microbial growth may be reduced where the local concentration has sufficient activity, creating a visible area without growth. The resulting zone provides a measurable indicator for comparing antimicrobial effects in a standardized assay.
Uniform disc dimensions help reduce variation between test locations, while controlled loading supports delivery of defined sample amounts. These features make differences in inhibition zones easier to associate with the tested antimicrobial, disinfectant, natural product, or specimen rather than inconsistent disc handling. Standardization is therefore important for meaningful comparative results.
Zone formation depends on the biological activity of the material placed on the disc and its ability to diffuse through agar. The cultured microorganism must also respond to that material under the assay conditions. Because both substance behavior and microbial susceptibility contribute to the result, a zone should be interpreted as evidence of activity within the test system.
A typical workflow uses a uniform cellulose disc, applies a defined antimicrobial agent or specimen, and places the disc on a microbial culture prepared in agar. After the substance diffuses through the medium, the culture is examined for a growth-inhibition zone. The observed result can then support comparisons among tested samples.
They are useful when multiple disinfectants or natural products need an initial comparison for antimicrobial activity. Each candidate can be applied to a disc and assessed on a microbial culture using the same general assay format. This approach supports screening before selecting materials for more focused immunology and infection investigations.
Within infection research, disc-based assays can contribute to pathogen susceptibility evaluation and comparative studies of antimicrobial activity. Their low cost and simple handling also suit teaching laboratories and diagnostic workflows. In comparative immunology and infection studies, the resulting inhibition patterns provide a practical way to examine how tested materials affect microbial growth.