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Yearly Archive2019

Where is DNA detection going, is it complicated?

A gene is a basic unit of genetics that carries DNA or a sequence of genetic information. It transfers genetic information to the next generation through replication, directs protein synthesis to express the genetic information it carries, and thus controls the expression of traits in biological individuals. Development, through technical means, has penetrated into our lives. Genetic technology has brought great benefits to our lives and health. We can help us predict future diseases through genetic technology and facilitate our lives through genetic technology. With regard to DNA detection, the current technology is very mature. Our ordinary people can also help us solve the purpose of disease prediction through genetic technology. What do we need to know about DNA detection? Let’s take a look together.

[1] DNA testing does not require going to the hospital

With the maturity of DNA detection technology, the development of DNA technology has advanced by leaps and bounds, which has brought great convenience to our lives. However, many people think that it is necessary to go to hospital for DNA detection and disease prevention. In fact, society has developed today, DNA. Not only, but it can also be done in hospitals, we can help us detect DNA through DNA testing institutions, and it will be more convenient than hospitals. When choosing a genetic testing institution, we must choose a group genetic testing institution. One-stop service will make Us have saved a lot of trouble. The Jiugang Group’s genetic testing and one-stop service make the genetic testing process, not in trouble.

[2] DNA detection process

The process of doing DNA testing is very simple. After we go to a group testing institution, such as Jiugang Gene, we will receive a sampling box and sample it after receiving the sampling box. Acquisition method:

  1. Open the oral mucosal exfoliated cell sample sampling box.
  2. Fill in your personal information form
  3. Remove the oral mucosa collection, brush, and preservation solution test tube
  4. Tear the open cavity mucosa collection brush, put it into the inner wall of the mouth and wipe it up and down, about 20 times
  5. Place the oral mucosa collection brush vertically into the preservation solution tube.
  6. Then take the sample of the collected oral mucosa and send it to the Jiugang Genetic Testing Center.
  7. After receiving your sample, we will go through the sample information and start DNA testing of your sample.
  8. After 15~20 working days, you will receive a genetic test report.
  9. Finally, we will interpret your test report.

[3] DNA detection precautions.

DNA detection precautions, mainly when collecting samples, do not eat, eat anything, avoid collecting oral mucosa, have DNA of food, brush your teeth, drink plenty of water, so, These must be noted, when filling out the sample information, be sure to fill out the clear.

[4] Selection of DNA testing institutions

DNA testing institutions, the choice is very important, Xiaobian here suggested that friends who want to do DNA testing, choose DNA testing institutions must choose, group testing institutions and, there is a one-stop service, because the group testing institutions, not only More professional, and one-stop service will bring us a lot of conveniences. For example, Jiugang Genetic Testing.

Advantages of DNA blood collection card

A detailed description of the DNA blood collection card:
Our factory specializes in the production of blood collection card. FTA blood sample collection card disposable sampling tool biological evidence extraction cotton swab DNA database special blood sample storage bag and disposable blood collection needle blood collection card disposable vacuum blood collection tube and other medical supplies sampling tools order hotline: 18028715702 gong manager once Cooperation lifelong friends welcome friends who need to call to discuss business……..

Forensic supplies – blood collection card series

The FTA card is designed to collect, archive, and purify nucleic acids from various biological samples at room temperature and perform PCR, SNP, RFLP, etc. analysis. Applicable samples include blood, oral cells, tissue cells, and the like. The FTA card contains unique chemicals that degrade the cell membrane, denature proteins and effectively protect nucleic acids from nucleases, oxidants, and UV rays. FTA cards can quickly inactivate organisms and inhibit the growth of bacteria and other microorganisms, inactivating infectious pathogens.
   FTA cards are available in several forms, such as standard cards, mini cards, small cards, and gene cards.

• Simple one-step acquisition of capture DNA
• Captured nucleic acids can be used in downstream applications in just 30 minutes
• Nucleic acid samples on the FTA card can be stored stably for several years at room temperature
• Samples on the FTA card are stored at room temperature before and after application, reducing the use of laboratory low-temperature refrigerators
• Indicating FTA card will change color after sample collection, suitable for colorless sample collection
• FTA cards are available in a variety of styles to meet the needs of the operator and can be customized to suit the user’s needs.

DNA collection flocked swab application and price introduction

feature:

DNA collection flocking cotton swabs are made using nylon fiber flocking technology. The front end is coated with nylon staple fibers fixed in the vertical direction so that there is no absorption hole in the collection area of the collection cotton swab, and the DNA cells are not dispersed in the retained fibers. Conducive to faster and higher school elution.

  1. Made of non-inhibitory DNA amplification material, PCR amplification can be performed directly, eliminating the extraction step.
  2. Strict process conditions, free of DNase, RNase, and capturable human DNA.

3, for sweat, semen, blood, dander, oral cells and other trace samples have superior acquisition performance.

  1. It can quickly absorb a small amount of sample and is highly efficient when released.
  2. The front is sharper and is suitable for extracting cells from the nails of crime scene victims or suspects.

6, the swab back end can be broken design, which is conducive to automatic extraction workstations for sample extraction.

  1. The entire swab is packaged in a clear plastic tube to avoid biological contamination.

Specifications: 20 / box

Price: 180 yuan / box

DNA collection swab

DNA collection swab includes flocked swab,foam swab,cotton swab etc.
Flocked Swabs are ideal for collecting large amount of cells and rapid elution of the specimens instantly release the cells into the cells into the transport medium.
  It is well recognized and adopted by the diagnostic test kit manufacturers who produce reagents in molecular genetic, forensics, clinical laboratories sectors.

With traditional fiber wound swabs a large percentage of the sample collected remains entrapped in the fiber matrix of the tip.

It has been shown that the flocked swab releases up to 95% of the sample collected compared to 25% in a standard fiber tipped swab-especially important if the sample size is particulary small.

dna collection swab

Advantages of disposable flocking sampling cotton swabs

Disposable flocking sampling cotton swab
The new medical sampling cotton swabs are made with internationally advanced technology, innovative nylon fiber technology, and high-tech spray technology. Advanced sample technology produces sample collection heads that enhance patient comfort. In particular, when exposed to sensitive parts of the human body, it is non-irritating, thereby relieving pain, and does not damage the skin and mucous membranes at the sampling site, and reduces the collection of specimens. When flocked nylon swabs have the advantages of high absorption and high release properties, flocked nylon swabs can directly reduce patient re-sampling, round-trip laboratory tests and repeated visits in the event of possible bleeding. Efficient flocked nylon swabs can directly reduce patient care costs due to unclear diagnosis and delays in treatment.
Selecting experimental tests and using reagents is often a quality control step and is important for laboratory testing. Quality control during the pre-collection inspection phase is an easily overlooked but very important part of the overall inspection quality control. The correct choice of inspection materials is a tool. In order to ensure the reliability of the test results.
The flocked nylon material swabs are made from fine nylon fibers by an innovative process and are glued to molded plastic rods. Compared to other material swabs, the flocked swab sampling head has a large surface area that facilitates the collection of cells and specimens. Through the adhesion of the material, flocking nylon collecting head and other material swabs, it is found that the flocked nylon swab is soft, has good water absorption, strong absorption capacity, good release uniformity, short absorption time, and high sample collection and release rate. Reduce the detection rate of sampled specimens, etc.; have breakpoints, easy to transport and use.

New non-removable sampling head swab/virus sampling swab / sterile sampling swab / DNA sampling swab

product description:
The sampling cotton swab consists of nylon staple fiber fluff and medical ABS plastic rod. Nylon staple fibers act as a soft brush to improve the collection of cellular material. Capillary movement between the fibers produces a strong water pressure that absorbs the liquid sample. At the same time, the sample is placed on the surface of the swab to facilitate elution.

Product manual:
This product is produced by our factory using new technology. It is the only patented disposable sterile sampling flocking cotton swab in China. already. A large number of clinical trials abroad have shown that nylon flocking swabs are superior to ordinary sterile swabs in the collection and delivery of clinical biological samples, especially for samples that cannot be sent in time for a long time. This is especially true.
performance:

  1. Connection strength: When the moving speed of the tensile testing machine fixture is 200mm / min; the pulling force of the sampling head and the connecting rod should be no less than 2N.
  2. Breaking strength: When the test span is 6 cm, the swab should be able to withstand 4 N axial static pressure for 15 s without permanent deformation or breakage.
    phenomenon.
  3. Rotating friction: After applying the glue, spray the velvet on the ABS rod. The rubbing fastness means that the test is not more than 2N, the rotational friction is not less than 3 times, and the surface fluff is not more than 2.

Product Usage:
Nylon flocking swabs are widely used for bacterial sample processing, viral cell culture, DFA testing, rapid and direct testing, enzyme immunoassays, polymerase chain reaction and molecular diagnostic-based assays, and forensic identification. Very ideal. It can also be used for throat sampling of respiratory viruses such as flu, swine flu, avian flu, and hand, foot, and mouth.

feature:

  1. With superior water absorption capacity, the number of specimens collected on the table can be increased from 20% to 60% of traditional sampling swabs.
  2. The release rate of the collected specimens exceeds 90%, ensuring the high reliability of the results.
  3. Select different preservation solutions for different sample types
  4. The plastic rod has a unique fragile design for easy sample transport.
  5. Ethylene oxide sterilization, independent packaging

What is the genetic sampling saliva method?

The saliva sampling detection method is more convenient and quicker and easier to operate. The process is as follows:

saliva collector
  1. Do not eat, drink, smoke, drink alcohol or chew gum within 30 minutes before saliva collection. Rinse mouth with drinking water.
  2. Remove the sampling tube, open the funnel cover, and collect the saliva through the funnel into the sampling tube until the position indicated on the label on the sampling tube.
  3. Cover the funnel cover and let the preservation solution in the funnel cover flow to the collection tube.
  4. Unscrew the funnel, cover with a small lid, shake upside down, and mix the saliva with the preservation solution.
  5. Put the sampling tube and the filled data back into the box and send it back to the genetic testing center.
    Note: To ensure that the actual amount of saliva reaches the tick mark, the upper layer of foam is not included and the saliva sampling process must be completed within half an hour.
    The general genetic testing process begins with the receipt of the DNA sample of the subject from the laboratory, and is approximately 15 working days until the subject receives the test report.

Gene detection sampling process

Genetic testing samples should regulate how to do it? The following is a small series for you to order genetic testing sampling process, we hope to help you.

Genetic testing sample flow

A, oral mucosa sampling detection method

Many companies use oral mucosal exfoliated cell sample collection methods, the genetic testing sampling process is as follows:

1, oral cleaning: rinse with water one to two times.

  1. Preparation before harvesting: Take the No. 1 tube (flat bottom) from the box, and gently shake it up and down to make the physiological saline deposit on the bottom of the tube. Unscrew the lid and stand on the table for later use.
  2. Scrape the cells: remove the oral mucosa spatula, and extend the entrance cavity to attach the toothed part of the scraping spoon to the part of the cheek of the inner side of the mouth located between the upper and lower teeth, with a little force (equivalent to brushing the teeth) Scrape on the oral mucosa more than ten times in the direction of the front and back. Then use the other side of the head of the spatula (do not need to turn the spatula) to scrape the oral mucosa on the other side and scrape it more than ten times.
  3. Collecting cells: The spatula is quickly immersed in the physiological saline of the No. 1 tube, and the mucosal cells are washed into the water. Lift the spatula off the surface of the water, hold it for a while and shake the spatula so that all the water on the spoon is dripped into the tube. At this time, it can be seen that the physiological saline solution becomes cloudy from clear.
  4. Fix the cells: Take out the No. 2 tube and gently lick it to deposit all the solution on the bottom of the tube. Pour all the solution in the No. 1 tube into the No. 2 tube, cover and tighten the screw cap of the No. 2 tube, and shake it up and down 10 times.
  5. Mail sample: Put the No. 2 tube into the paper bag of the ziplock bag, and seal the zipper bag for inspection.
    Shenzhen Huachenyang Technology Co., Ltd.
    Note:
  6. The solution in the No. 1 tube is a non-toxic and harmless physiological saline. The oral mucosa spatula can be used directly without cleaning. Users can also use water to wash before use.
  7. The solution in the No. 2 tube is corrosive. Do not immerse the oral mucosa spatula in the No. 2 tube (pointer tube). If such an event occurs, please use the water to repeatedly wash the oral mucosa spatula before use.

Second, saliva sampling detection method

At present, a new method for collecting gene samples, saliva sampling and detection method, is presented, which is more convenient and quicker, and achieves non-invasive collection. The detection effect is the same as that of extracting oral mucosa.

The gene detection sampling process is as follows:

  1. Oral cleaning: Explain the sampling process and precautions, and ask the customer to rinse with water. Do not eat, drink, smoke, drink alcohol or chew gum for half an hour.

2, preparation before harvest: wear disposable medical gloves (using the hospital standard wearing method and procedures), open the collection box to prepare for sampling. Remove the sampling tube from the box, pull out the plug, and insert the sampling tube into the sampling funnel.

  1. Take saliva: Collect saliva through the sampling funnel into the sampling tube until the position indicated on the label on the sampling tube.

Note: To ensure that the actual amount of saliva reaches the tick mark, the upper layer of foam is not included and the saliva sampling process must be completed within half an hour.

  1. Preserving the sample: Take out the lid from the box. The lid contains the fixing solution. Tighten the lid to the sampling funnel clockwise. After confirming that the lid is tight, turn it upside down 10 times to mix the saliva and fixative well, keep the lid on top, and place the sampling tube vertically for 5 minutes. Keep the sampling tube vertical, pull out the sampling funnel, cover the sampling tube with a stopper, and mix it upside down 10 times.

Note: The fixing solution in the lid should be clear, colorless and transparent. If it is turbid, please discard it. Please do not tear the plastic film inside the lid by hand.

  1. Mail sample: Discard the sampling funnel and the sampling cup cover, place the sampling tube and the completed data into the paper bag of the ziplock bag, and seal the zipper bag for inspection.

The above is the introduction of the method and process of genetic testing by the editor of the French website. Genetic testing can diagnose diseases and can also be used to predict disease risk. What has been very exciting in recent years is the development of predictive genetic testing. Use genetic testing techniques to detect the risk of disease before the disease occurs, prevent or take effective interventions early. More than 20 diseases have been predicted by genetic testing.

Gene detection sampling method

appropriate:

everyone

Sampling characteristics:

Simple, non-invasive, fast and at room temperature

Sampling principle:

On average, normal people secrete 1.5 liters of saliva per day, which contains exfoliated oral mucosal cells, and the cells contain human DNA information.

Sampling method:

appropriate:

everyone

Sampling characteristics:

Simple, painless room temperature transport

Sampling principle:

DNA information is extracted by collecting a person’s oral cells with a special cotton swab.

Sampling method:

  1. Do not eat, smoke, drink, etc. 30 minutes before sampling.

(1) Prepare a glass of water, drink about 50 ml of water, wash the mouth thoroughly for about 10 seconds, and then spit it out;

(2) Repeat the above steps 2-3 times.

Note: The swab portion cannot be touched by the hand during the entire sampling process.

  1. Oral cell sampling

(1) Hold the handle, insert the cotton swab into the entrance cavity, fully touch the mucous membrane inside the cheek/upper and lower gingiva, and wipe it up and down under the action of brushing. At the same time, the swab is rotated so that the swab head is in full contact with the oral mucosa. Repeat this. Action 2 minutes.

(2) Put the collected cotton swab into the collection tube, break the handle, and then seal to complete the sampling.

appropriate:

Pregnant woman or cancer patient

Sampling characteristics:

Non-invasive, fast and sensitive, stored at room temperature

Sampling principle:

There are a small amount of free DNA fragments in the blood, and special preservatives can be added to the collection tube to stabilize the nucleated blood cells, prevent the release of the genomic DNA of the cells, and stabilize the free DNA fragments without degradation.

Sampling method:

Need to be operated by a professional medical staff to sample by venipuncture.

note:

The blood should be completely filled in the test tube. After removing the connecting tube on the test tube, gently invert 8 to 10 times to mix the blood with the preservation solution. Inadequate mixing or mixing delays can lead to erroneous test results.

appropriate:

everyone

Sampling characteristics:

Easy and fast, save at room temperature

Sampling principle:

The DNA blood sample collection card is a plant fiber carrier for storing a DNA medium, and has a function of denaturation of a protein, cell membrane rupture, DNA adsorption fixation, and inhibition of bacterial growth.

Sampling method:

appropriate:

newborn

Sampling characteristics:

Easy and fast, save at room temperature

Sampling principle:

Similar to fingertip blood, neonatal heel blood is fixed on a DNA sample capture card for a particular material.

Sampling method:

It is operated by professional medical staff, newborns are born within 3 to 7 days and are exclusively breastfed.

appropriate:

adult

Sampling characteristics:

Easy 4° storage

Sampling principle:

A drug for preventing wall hanging is sprayed on the inner wall of the blood collection tube, and an anticoagulant is added. EDTA anticoagulants have little effect on blood cell agglutination and cell morphology and can inhibit platelet aggregation.

Sampling method:

The collection of venous blood is performed by professional medical staff.

appropriate:

cancer patient

Sampling characteristics:

High precision, invasive, special preservation

Sampling principle:

Fresh tissue that has been surgically removed is prepared by fixation, embedding, sectioning, dewaxing, staining, and the like. It can be stored for a long time, and can observe the morphology of tumor tissue cells and the DNA of tumor cells.

Sampling method:

surgery

appropriate:

cancer patient

Sampling characteristics:

Invasive, special preservation

Sampling principle:

Tumor tissue is further extracted by directly acquiring fresh tissue of the tumor by surgery, and provides a reference for subsequent treatment plans.

saliva kit

HCY Saliva DNA Collection kits CY-98000A is state of the art user-friendly DNA collection from donors at home, which is all-in-one system for collection, stabilization and transportation,storage of human DNA from superior saliva sample.

The median yield of DNA is 110 μg from a 2 mL saliva sample but the yield may range from a minimum of 15 μg to more than 300 μg. Even with the same donor, the yield may change from day to day. The median yield for any given study may depend on the population that is being sampled from.  

Most people take 2-5 minutes to deliver a saliva sample following steps 1 to 6.

1. Ringe mouth with warm water.

2. Unfold the kits, Spit into funnel until saliva volume (not bubbles) reaches the marked line-2ml.

3. Hold the funnel & preservative tube upright, and screw off the rep cap.

4. Pour the 2ml Saliva Preservative into the funnel tube.

5. Unscrew the funnel from the collection tube.

6.Close the collection tube tightly by red cap.

7.Shake the collection tube for 5 seconds. Discard or ecycle the rest parts.

saliva kit

dna saliva collection kit

Huachenyang produce and export dna saliva collection kit, which is used to collect dna sample for genetic testing.

From 2016, about 55% annual revenue had been spent on the new factory building, production equipment updating, talent introduction and staff training. Construction & management of our new class 100,000 clean room & class 100,00 Laboratory conforms to the standard of GMP.

 OEM,ODM are both avaialble. Not only customized your logo &text on pakcage & our DNA Test Sample collection kits,  we cooperate with many top Genetic company and R&D their exclusive DNA Test Sample collection kits & cell reservation. While it’s not ok to reveal, as we signed confidential agreement.

dna saliva collection kit