Sampling swab manufacturers Shenzhen huarikang biological to introduce the origin of sampling swabs do you know?
Sampling swab manufacturers Shenzhen huarikang biological give you an introduction
Swab is a very widely used applicator, used in areas including medical care, microbiological testing, forensic testing, scientific research, and for industrial cleaning and food safety. For pig farmers, of course, it is also very unfamiliar. The first swab was born in 1923, invented by a Polish-American Jew named Leo Gerstenzang. There are many legends about how Gerstenzang invented the swab, one of which is widely circulated: one day in 1923, Gerstenzang saw his wife wrapping cotton wool around a toothbrush for corner cleaning, and based on this inspiration, he soon made his first swab.
At first he called his swab product "Baby Gays"; later he changed the name to Q-tips Baby Gays to emphasize quality; and later
The name Baby Gays was abandoned as Q-tips, and now the more common name for these products is Swabs.
The iterative evolution of the swab Gusten Sand's original invention of the plain cotton-tipped wooden stick swab is still in use today. As applications have become more widespread, swabs have evolved in size, shape, material and process. Swab heads can be of cotton or plastic such as polystyrene and polypropylene. Sometimes paper or thread is also used to make the swab head.
Cotton-tipped swabs were originally swabbed with cotton heads, primarily based on their cleaning power and absorbency. Cotton swabs are very cheap and readily available and are widely used in medical treatment for wound treatment after sterilization with ethylene oxide or autoclaving, and in forensic science for crime scene forensics.
In the absence of a substitute, cotton swabs can be used in almost every scenario of application. But cotton-tipped swabs also have some problems, and are increasingly not used for sample collection due to the low release rate of cotton, a natural material for samples, and the fact that some of its natural fatty acids can be damaging to microorganisms. Rayon head swabs rayon is a synthetic fiber manufactured through wood pulp.
Although categorized as a synthetic fiber, it is essentially a natural material. In contrast to cotton, rayon is generally used for sampling for diagnostic testing because the manufacturing process removes substances that could damage the sample or react with it during transport and handling. Polyester head swabs Polyester swabs use a head material of polyester long fiber wound and were first introduced to medical testing by DuPont. Polyester fibers have proven to be effective for microbial collection, rapid diagnostics and PCR testing.
Polyester swabs have a high release rate, but cost more than cotton and rayon swabs. Foam-tipped swabs made with medical-grade polyurethane are excellent for diagnostic use and are particularly well suited for cell sampling. The swab head of these swabs is usually manufactured in sheets, and the surface pore count is usually to be 100ppi (pores per inch).
This material absorbs hydrophilic substances well and hydrophobic substances poorly, and is mostly used in scenarios where chemical resistance is required, as well as for DNA and microbial sampling. Flocked swabs flocking technology was first developed for cosmetic and industrial production.
The flocking process was introduced into swab production to replace the traditional winding swab head, bringing swab production to a new level. Due to the flocking process and the multi-head split polyester material used, flocked swabs have extremely high absorbency and release rates, and have proven to be equally efficient for molecular sampling and absorption. They have been designated by several institutions for nucleic acid sampling as well as for some research areas of genomic analysis.
The evolution of swabs is also not limited to changes in materials; new needs in the fields of care, testing, and research have led to the evolution of swabs in multiple dimensions. Swabs are also not only used as applicators, but also assume some roles as transport media.
Recently in the fight against the epidemic action and a number of epidemic-related rumors have emerged everyone please take precautions! Sampling swabs for nucleic acid testing and antigen testing are toxic?
Recently, a rumor spread in the circle group, to the effect that "the swabs used for sampling have reagents on them and are toxic. Some netizens said that the elderly at home did not want to participate in nucleic acid screening after seeing the rumor, and hoped that the younger generation would also try not to undergo nucleic acid testing and antigen testing. Shanghai disinformation platform to a number of test kits manufacturers for confirmation, were "sampling swabs and swabs used in daily life is not the same, but does not contain reagents, more toxic" a clear answer.
Sampling swab manufacturer Shenzhen Huarui Kang biological introduction, strictly speaking, sampling swabs should be called "sampling swabs", not "cotton swabs", because they are not the swabs used in everyday life. The biggest difference between the two is that: the raw material of cotton swabs in daily life is skimmed cotton, while sampling swabs look similar to ordinary cotton swabs, but the top is actually flocked swabs.
The reason for the flocked swab is that it is more suitable for sampling and testing. In addition, the sampling swab is produced for sampling, itself does not contain any soaking reagents, and does not need to contain reagents. A number of manufacturers have said that, according to national regulations, single-use samplers belong to a class of medical device products, not only production for the record, and there are strict production environment requirements and quality supervision standards, qualified products are certainly non-toxic and harmless.
These knowledge, do you know?
