Nucleic acid extraction kits are tools used to extract nucleic acids (DNA or RNA) from various biological samples, and their specific applications are extremely extensive, mainly including the following aspects:

Medical Diagnosis

• Pathogen Detection
  Nucleic acids of pathogens (such as bacteria, viruses, fungi, etc.) can be extracted from samples of patients, such as blood, sputum, pharyngeal swabs, feces, etc. Through nucleic acid detection technologies (such as PCR, real-time quantitative PCR, etc.), it can be determined whether the patient is infected with a specific pathogen, and the pathogen can be typed and tested for drug resistance, etc., providing a basis for the diagnosis, treatment, and prevention and control of diseases. For example, the nucleic acid detection of the novel coronavirus is to extract the virus RNA through the extraction kit and then conduct the detection to determine whether the person is infected with the novel coronavirus.
• Genetic Disease Diagnosis
  DNA is extracted from samples such as peripheral blood, amniotic fluid, chorionic villi, and tissues of patients to detect genetic variations such as gene mutations, gene deletions, and gene duplications, which can assist in the diagnosis of genetic diseases, such as cystic fibrosis, hemophilia, thalassemia, etc. It can also be used for prenatal diagnosis to detect whether the fetus carries pathogenic genes, providing a guarantee for eugenics.
• Tumor Diagnosis and Monitoring
  Extract nucleic acids from tumor tissues or blood, and detect mutations, methylation status, gene fusions, etc. of tumor-related genes, which is helpful for the early diagnosis, typing, prognosis evaluation, and selection of treatment plans for tumors. For example, by detecting EGFR gene mutations in the blood of patients with non-small cell lung cancer, it can guide whether to use targeted drugs for treatment. During the treatment process, the recurrence and metastasis of the tumor can also be monitored by regularly detecting nucleic acids.

Scientific Research

• Gene Expression Analysis
  Extract RNA from samples such as cells and tissues, reverse transcribe it into cDNA, and then use technologies such as real-time fluorescent quantitative PCR, gene chips, and RNA-seq to study the changes in the expression levels of genes in different tissues, different developmental stages, and different physiological and pathological states, so as to understand the functions and regulatory mechanisms of genes.
• Genomics Research
  Extract the genomic DNA of biological samples for research such as whole-genome sequencing, genomic library construction, gene cloning, and SNP analysis, in order to reveal the genetic information, gene structure and function of organisms, as well as the genetic relationships among species.
• Molecular Evolution Research
  By extracting the nucleic acids of different species or different populations of the same species, analyzing the differences and similarities of nucleic acid sequences, and studying the evolutionary history of organisms, the genetic relationships among species, and the evolutionary laws of genes.

Forensic Identification

• Individual Identification
  Extract DNA from biological samples at the crime scene, such as bloodstains, hair, saliva, semen stains, etc. Through DNA fingerprinting technology, STR typing and other methods, compare it with the DNA samples of suspects or missing persons to achieve individual identification and identity verification, providing key evidence for solving the case.
• Paternity Testing
  Extract the DNA of parents and children, detect the genetic markers of specific gene loci, and judge whether the paternity relationship is established by analyzing the genetic laws of genes, which is of great significance in legal and family relationship identification.

Agricultural Field

• Detection of Plant and Animal Diseases
  Extract nucleic acids from samples such as infected plant and animal tissues, seeds, and soil, detect the nucleic acids of plant pathogens and animal pathogens, and use them for the rapid diagnosis and monitoring of plant and animal diseases, and take timely prevention and control measures to ensure the safety of agricultural production.
• Transgenic Detection
  Extract the nucleic acids of crop samples to detect whether there are transgenic components in them, such as specific foreign genes or promoters and terminators, etc., and use them for the supervision and labeling management of transgenic crops to protect the right to know and the right to choose of consumers.

Food Testing

• Food Microorganism Detection
  Extract the nucleic acids of microorganisms from food samples, detect the pathogenic microorganisms in food, such as Escherichia coli, Salmonella, Listeria, etc., evaluate the hygiene status of food, and ensure food safety.
• Food Traceability
  By extracting the nucleic acids in food, analyzing its DNA fingerprint or specific gene markers, the origin traceability and variety identification of food can be achieved, cracking down on counterfeiting and shoddy products and maintaining market order.