Sterile polyester fiber swabs have a wide range of specific applications, as described in the following major fields:

Medical Field

• Nucleic Acid Testing
  In nucleic acid testing for pathogens such as the novel coronavirus, sterile polyester fiber swabs are commonly used to collect pharyngeal swab and nasal swab samples. Their soft texture and good absorbency enable them to effectively collect cells and potential viruses on the surface of the oral and nasal mucosa, providing accurate samples for subsequent nucleic acid testing.
• Microbial Culture
  These swabs can be used to collect microbial samples from wounds, the oral cavity, the vagina, and other parts of the body to detect the presence of pathogen infections such as bacteria and fungi. For example, when diagnosing vaginitis, doctors use sterile polyester fiber swabs to collect vaginal secretions for microbial culture and identification. This helps determine the type of pathogen causing the infection, thus enabling the formulation of targeted treatment plans.
• Antigen Testing
  In antigen testing for viruses like the influenza virus and respiratory syncytial virus, sterile polyester fiber swabs are used to collect respiratory samples. These samples can specifically react with antibodies in the test reagents, enabling the rapid detection of whether the corresponding pathogen is present.

Forensic Identification Field

• Biological Sample Collection
  During crime scene investigations, sterile polyester fiber swabs can be used to collect biological samples such as blood, saliva, and semen. The DNA information in these samples is of great significance for identifying suspects and establishing the chain of evidence. For instance, in sexual assault cases, swabs can be used to collect semen samples that may be left on the victim’s body, providing crucial clues for solving the case.
• Paternity Testing
  In the process of paternity testing, sterile polyester fiber swabs are often used to collect oral mucosal cells. By collecting oral swab samples from parents and children, the DNA can be extracted for comparative analysis to determine the parent – child relationship.

Scientific Research Field

• Cell Collection and Research
  In biological research, sterile polyester fiber swabs can be used to collect cell samples. For example, they can be used to collect cells from the surface of plant leaves for plant pathology research, or to collect cells from the surface of animal tissues for studies in cell biology, genetics, and other aspects.
• Genetic Testing
  In some genetic testing projects, DNA samples from specific tissues or cells need to be collected. Sterile polyester fiber swabs can be used to collect oral mucosal cells, skin cells, etc., providing a source of samples for genetic testing. For example, in tumor genetic testing, swabs can be used to collect oral mucosal cells from tumor patients to detect the presence of gene mutations related to tumor development, providing a basis for tumor diagnosis and treatment.