Research Use Only Products

Quantitative study examples by ELISA: confirming antibody titers at the onset and infection stages, verifying the Cut Off Index in the development of test drugs, valuing of reference materials, and performing epidemiological studies based on antibody titers
<Caution> This category is measurement kit using ELISA as principle method. The ELISA primarily intends not to determine "negative" or "positive" but rather to determine the threshold for "negative" or "positive". Antibody titer varies with the recognition site, condition, and stage of antigen. This QuaResearch series provides antibody measurement systems for two well-known antigens of COVID -19, spike protein and nucleocapsid protein. In some cases, the antibody titer of COVID -19 may differ significantly between these two types of antigen recognition sites.
In our company, through clinical joint research with domestic clinical institutions, the cut off index (threshold) of ELISA antibody titer in PCR positive group, negative control group (pre-pandemic), and the variation of antibody titer at the time of infection are statistically analyzed (to be submitted). 
Customers who purchased this product are welcome to contact our support center (support@cellspect.com) for more detailed information to further their research.

Antibody detection kit (immunochromatography)

This kit is a research immunochromatography kit for detecting human IgG antibodies that recognize SARS-CoV-2 nucleocapsid protein, which is the causative virus of COVID-19.

Product name:QuaResearch COVID-19 IgG LF

Manual

Flyer

​  Product name / Product code

Sample

Test number

Whole blood, serum, plasma

​1 test

Immunochromatographic semi-quantitative measurement system

This system developed by our company is a semi-quantitative measurement reader dedicated to the “QuaResearch COVID-19 IgG LF", a simple antibody titer test kit for COVID-19. Set the test stick after reaction and “detection/non-detection” will be automatically judged. The antibody titer threshold determined by the our company ELISA method is used for the judgment. To measure, just set the test stick and press the measure button. It is also possible to measure continuously in large quantities by replacing the test stick after reaction one after another. The measurement result is saved with the image data as well as the numerical data.

Product name: Scanalyser DIA

  Product name / Product code

List price

Content

Scanalyser DIA / RSCSA021

​¥400,000

Device + Windows tablet (Measurement application installed)

Flyer

Antibody measurement kit

Product name: QuaResearch

COVID-19 Human IgM IgG ELISA kit (Spike Protein)

※This is the same as the old name "COVID-19 human IgM IgG ELISA kit"

Virus detection can be broadly divided into two approaches: one is to detect the virus itself, such as PCR method, and the other is to detect the immune response that develops during infection (IgG, IgM, IgA). This ELISA kit is a research ELISA kit for detecting IgM and IgG antibodies produced in the body when infected with novel coronavirus. The recombinant spike protein of SARS-CoV-2 expressed in mammalian cells was immobilized on the plate. The IgM and IgG antibodies bound to this protein are detected by HRP-conjugated anti-human IgM and HRP-conjugated anti-human IgG antibodies, respectively. In common infections, IgM is an antibody produced early in the infection and disappears with relief of symptoms. IgG begins to be produced later than IgM and continues to be produced for months after healing. This is known to reduce the symptoms of the next infection or to prevent the onset of the next infection.

This ELISA kit is a research ELISA kit for detecting IgM and IgG antibodies produced in the body when infected with novel coronavirus. The recombinant nucleocapsid protein of SARS-CoV-2 expressed in mammalian cells was immobilized on the plate. The IgM and IgG antibodies bound to this protein are detected by HRP-conjugated anti-human IgM and HRP-conjugated anti-human IgG antibodies, respectively. In common infections, IgM is an antibody produced early in the infection and disappears with relief of symptoms. IgG begins to be produced later than IgM and continues to be produced for months after healing. This is known to reduce the symptoms of the next infection or to prevent the onset of the next infection.

Product name: QuaResearch

COVID-19 Human IgM IgG ELISA Kit (Nucleocapsid Protein)

Product name:QuaResearch

COVID-19 Human IgA ELISA Kit (Spike Protein)(Full-Length)

This ELISA kit is a research ELISA kit for detecting secretory and serum IgA antibodies produced in the body when infected with the novel coronavirus. The recombinant spike protein of SARS-Cov-2 from mammalian expression system is immobilized on the plate and will bind to IgA antibody in the sample, then being detected with HRP-conjugated anti-human IgA antibody. IgA is particularly abundant in mucous membranes such as saliva and the nasopharynx, and generally has the function of infection prevention. Generally, secretory IgA, which is on the surface of mucous membranes such as the eyes, nose, and throat, functions as mucosal immunity to prevent cells from pathogen infection. Serum IgA is known to be produced a little later than IgM but continues to be produced for a longer period than IgM.

This ELISA kit is a research ELISA kit for detecting secretory and serum IgA antibodies produced in the body when infected with the novel coronavirus. The recombinant spike protein (S1) of SARS-Cov-2 from E. Coli expression system is immobilized on the plate and will bind to IgA antibody in the sample, then being detected with HRP-conjugated anti-human IgA antibody. IgA is particularly abundant in mucous membranes such as saliva and the nasopharynx, and generally has the function of infection prevention. Generally, secretory IgA, which is on the surface of mucous membranes such as the eyes, nose, and throat, functions as mucosal immunity to prevent cells from pathogen infection. Serum IgA is known to be produced a little later than IgM but continues to be produced for a longer period than IgM.

Product name:QuaResearch

COVID-19 Human IgA ELISA Kit (Spike Protein)(S1)

This ELISA kit is a research ELISA kit for detecting secretory and serum IgA antibodies produced in the body when infected with the novel coronavirus. The recombinant nucleocapsid protein of SARS-Cov-2 from E.coli expression system is immobilized on the plate and will bind to IgA antibody in the sample, then being detected with HRP-conjugated anti-human IgA antibody. IgA is particularly abundant in mucous membranes such as saliva and the nasopharynx, and generally has the function of infection prevention. Generally, secretory IgA, which is on the surface of mucous membranes such as the eyes, nose, and throat, functions as mucosal immunity to prevent cells from pathogen infection. Serum IgA is known to be produced a little later than IgM but continues to be produced for a longer period than IgM.

Product name:QuaResearch

COVID-19 Human IgA ELISA Kit (Nucleocapsid Protein)

​  Product name / Product code

List price

​Sample

Test number

COVID-19 Human IgM IgG ELISA kit

(Spike Protein) / RCOEL961

​¥150,000

​Serum

96T

Flyer

Manual

COVID-19 Human IgM IgG ELISA kit (Nucleocapsid Protein) / RCOEL961-N

​¥150,000

​Serum

96T

Flyer

Manual

COVID-19 Human IgA ELISA kit 

(Spike Protein) (Full-Length) / RCAEL961-SF

​¥150,000

​Serum / Saliva

 / Sputum

96T

Manual

Flyer

COVID-19 Human IgA ELISA kit 

(Spike Protein) (S1) / RCAEL961-S1

​¥150,000

​Serum / Saliva

 / Sputum

96T

Manual

Flyer

COVID-19 Human IgA ELISA kit 

(Nucleocapsid Protein)/ RCAEL961-N

​¥150,000

​Serum / Saliva

 / Sputum

96T

Manual

Flyer

Antigen measurement kit

SARS-CoV-2 Virus ELISA kit (Nucleocapsid Protein)

Virus detection can be broadly divided into two approaches: one is to detect the virus itself, such as PCR method, and the other is to detect the immune response that develops during infection (IgG, IgM). This ELISA kit is a research ELISA kit for detecting the nucleocapsid protein derived from the novel coronavirus that has invaded the body. This ELISA kit is based on the sandwich ELISA method. Anti-SARS-CoV-2 nucleocapsid protein antibody is immobilized on the plate attached to the kit, and the nucleocapsid protein derived from SARS-CoV2 in the sample bound to the antibody is detected with HRP-conjugated anti-SARS-CoV-2 nucleocapsid protein antibody.

Product name:QuaResearch  

SARS-CoV-2 Virus ELISA kit (Nucleocapsid Protein)

​  Product name / Product code

SARS-CoV-2 Virus ELISA kit

(Nucleocapsid Protein) / RSAEL961-N

List price

Test number

Coming soon

96T

​Sample

Saliva/sputum

Escherichia coli (E. coli) measurement kit (enzyme activity measurement)

This kit is for counting the number of Escherichia coli (E. coli). Currently, the number of E. coli is measured by incubating E. coli for 24 hours on an agar plate or in agar medium. A clean environment is required to prepare the culture medium, and the analyst's subjective may affect the measurement. The kit provides a simple, rapid, and low-cost method for measuring E. coli that overcomes all the shortcomings of existing technologies.  In addition, 96 samples can be analyzed simultaneously. This kit is able to measure the number of E. coli in all kinds of liquids including sewage, industrial wastewater, river water, groundwater, and drinking water, etc., and quickly detect fecal contamination that causes waterborne diseases and food poisoning.

Product name:QuaResearch  

E. Coli measurement kit

​  Product name / Product code

List price

​Sample

Test number

​¥96,000

Sewage,
Industrial wastewater,

River water,Groundwater,
Drinking water

96T x 4

Manual

Flyer

Fully automated ELISA syste

QRC 5  LB925

The ELISA assay is a very common assay method that has been used for a long time in a wide range of fields such as basic biotechnology research, clinical research, and food allergy.However, in many ELISA measurements, it is neces- sary to repeat the steps of [incubation], [washing], [shake], and [reagent dispensing]as pretreatment, and these opera- tions may affect shake error and measurement accuracy depending on the skill of the operator.

In order to obtain highly accurate measurement data for antibody measurement using this kit, we recommend that you use an automatic pretreatment and measurement system together with the kit.

品名:QuaResearch-supported fully automated ELISA system

   QRC 5 LB925

List price

​内容

​¥4,500,000

Operation system with software

PDFアイコン.png

​Flyer

  Product name / Product code

QuaResearch-supported fully automated ELISA system QRC 5 LB925

Escherichia coli (E. coli) measurement kit (enzyme activity measurement)

This kit is for counting the number of Escherichia coli (E. coli). Currently, the number of E. coli is measured by incubating E. coli for 24 hours on an agar plate or in agar medium. A clean environment is required to prepare the culture medium, and the analyst's subjective may affect the measurement. The kit provides a simple, rapid, and low-cost method for measuring E. coli that overcomes all the shortcomings of existing technologies.  In addition, 96 samples can be analyzed simultaneously. This kit is able to measure the number of E. coli in all kinds of liquids including sewage, industrial wastewater, river water, groundwater, and drinking water, etc., and quickly detect fecal contamination that causes waterborne diseases and food poisoning.

Product name:QuaResearch  

E. Coli measurement kit

​  Product name / Product code

​Sample

Test number

Sewage,
Industrial wastewater,

River water,Groundwater,
Drinking water

1test

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