Fiber Materials / Alfa Chemistry
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Fiber Antibacterial Activity Analysis

Antibacterial fibers are a class of man-made fibers with antibacterial properties. Alfa Chemistry provides analytical testing services for the antibacterial activity of fiber materials, including qualitative and quantitative analysis. Our fiber analysis laboratory has a strong technical infrastructure and a team of well-trained and experienced experts.

Optional Service Items

Optional Service Items

Combining extensive analytical experience and advanced technology, our team provides systematic and accurate antimicrobial activity analysis services for fiber materials, as well as detailed analytical results and reports. The bacteriostatic test is aimed at samples that only inhibit the growth and reproduction of bacteria/fungi without killing. The bactericidal experiment is aimed at samples that not only inhibit but also kill bacteria/fungi. Our antimicrobial activity analysis services include but are not limited to the following:

Qualitative detection

Qualitative test methods include mixed culture method and streak method. The qualitative test is particularly effective for the dissolution-type antibacterial fiber material sample, and has the advantages of simple test method, short time and low cost. The evaluation is based on the width of the inhibition zone or the inhibition ring.

Quantitative detection

After the sample is inoculated with the quantitative test bacteria solution and a certain period of incubation, the antibacterial effect of the fiber material sample can be quantitatively evaluated according to the reduction rate of the number of test bacteria. This method has the advantages of quantitative, accurate and objective, but the test time is long and the cost is relatively high. The evaluation basis is mainly based on the bacteriostatic rate, bactericidal rate or bacteriostatic activity value. Commonly used analysis methods include shock method, absorption method (dipping method), blotting method, Quine method, transfer method, fluorescence analysis method, etc.

Optional strains

Standard strains commonly used are Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Actinomyces viscous, Pseudomonas aeruginosa, Candida albicans, etc. Please feel free to contact us to discuss your other strain needs.

Testing Standards

  • Commonly used qualitative test methods for typical antimicrobial properties mainly include AATCC 147-2011, AATCC 90-2011, AATCC 174-2011, ISO 20645-2004.
  • Commonly used quantitative test methods for typical antibacterial properties mainly include AATCC 100-2994, AATCC 174-2011, JIS L 1902:2008, ASTM E 2149-10 (2001), ISO 20743-2007.

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  • Experienced testing and research team
  • Meet customer needs at all stages
  • Efficient and cost-effective services
  • Complete and advanced infrastructure

Analytical Methods

With the continuous update and development of antibacterial materials, the detection methods are also constantly improving. In addition to the commonly used analytical methods mentioned above, Alfa Chemistry is also continuing to pay attention to the research and progress of analytical methods for the antibacterial properties of fiber materials. Some advanced and efficient assays have been developed and reported, such as MTT assay, OD600 assay, disk diffusion assay, etc. [1]

OD600 assay at different time points.OD600 assay at different time points.


  1. Hajo Haase, et al. PLoS ONE, 2017, 12(11): e0188304.

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