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  4. SARS-CoV-2 Neutralizing Antibody ELISA Kit

SARS-CoV-2 Neutralizing Antibody ELISA Kit

  • 中文名稱：
    新型冠狀病毒(SARS-CoV-2)中和抗體酶聯免疫試劑盒
  • 貨號：
    CSB-EL33243HU
  • 規格：
    96T/48T
  • 價格：
    ￥3600/￥2500
  • 其他：

產品詳情

  • 產品描述：
    新型冠狀病毒(SARS-CoV-2)中和抗體酶聯免疫試劑盒（CSB-EL33243HU）為競爭法ELISA試劑盒，定性檢測血清、血漿樣本中的SARS-CoV-2 neutralizing Ab含量。SARS-CoV-2 neutralizing Ab即新冠病毒中和抗體。背景上，新冠疫情全球大流行促使其研究。機制方面，中和抗體可識別并結合新冠病毒刺突蛋白，阻止病毒與宿主細胞受體結合，阻斷感染過程，是抗病毒研究關鍵方向。為疫苗研發、免疫應答評估及感染康復者抗體動態研究提供重要依據；適用于科研場景中疫苗接種后抗體效價追蹤、群體免疫水平研究或病毒感染動物模型的免疫效果評估本品僅用于科研，不用于臨床診斷，產品具體參數及操作步驟詳見產品說明書。
  • 別名：
    2019 Novel Coronavirus; Coronavirus; CoV; COVID-19 virus; HCoV-2; Human Coronavirus 2019; SARS2; SARS-CoV-2; Severe acute respiratory syndrome coronavirus 2
  • 縮寫：
    SARS-CoV-2 neutralizing Ab
  • 種屬：
    Homo sapiens (Human)
  • 樣本類型：
    serum, plasma
  • 反應時間：
    1-5h
  • 樣本體積：
    50-100ul
  • 檢測波長：
    450 nm
  • 研究領域：
    Infectious Diseases
  • 測定原理：
    qualitative
  • 測定方法：
    Competitive
  • 精密度：
    Intra-assay Precision (Precision within an assay): CV%<15%
    Three samples of known concentration were tested twenty times on one plate to assess.
    Inter-assay Precision (Precision between assays): CV%<15%
    Three samples of known concentration were tested in twenty assays to assess.
  • 標準曲線：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

    ng/ml OD1 OD2 Average
    10000 0.099 0.092 0.096
    5000 0.145 0.136 0.141
    2500 0.194 0.183 0.189
    1250 0.274 0.263 0.269
    625 0.344 0.371 0.358
    312 0.519 0.528 0.524
    156 0.901 0.907 0.904
    78 1.509 1.412 1.461
    39 1.787 1.723 1.755
    19.5 2.121 1.958 2.040
    9.75 2.233 2.138 2.186
    0 2.394 2.328 2.361
  • 本試劑盒所含材料：
      • One 96-well Microtiter plate ( coated Microwells) -- This microwell plate has been pre-coated with recombinant SARS-CoV-2 S RBD antigen and can be dismountable into 12 strips of 8 wells.
      • A bottle of Standard (10 x concentrate; 200 μl/vial) -- Dilute the standard at dilution series, read the OD values, and then draw a standard curve.
      • A bottle of HRP-conjugated ACE2 (100 x concentrate; 60 μl/vial) -- ACE2 interacts with SARS-CoV-2 S RBD, mimicking the process of SARS-CoV-2 entry into the host cells. HRP catalyzes the TMB Substrate solution, eliciting a chromogenic reaction.
      • A bottle of HRP-conjugate Diluent (10 ml/vial) -- Dilute the HRP-conjugated ACE2 solution.
      • Two bottles of Sample Diluent (20 ml/vial) -- Reconstitute the standard and dilute the sample to an appropriate concentration.
      • A bottle of Wash Buffer (25 x concentrate; 20 ml/vial) -- Wash away unbound or free substances.
      • A bottle of TMB Substrate (10 ml/vial) -- Act as the chromogenic agent. TMB interacts with HRP, eliciting the solution turns blue.
      • A bottle of Stop Solution (10 ml/vial) -- Stop the color reaction. The solution color immediately turns from blue to yellow.
      • Four Adhesive Strips (For 96 wells) -- Seal the plate when incubation.
      • One Instruction manual

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  • 本試劑盒不含材料：
      • A microplate reader capable of measuring absorbance at 450 nm, with the correction wavelength set at 540 nm or 570 nm.
      • An incubator that can provide stable incubation conditions up to 37°C±5°C.
      • Centrifuge
      • Vortex
      • Squirt bottle, manifold dispenser, or automated microplate washer.
      • Absorbent paper for blotting the microtiter plate.
      • 50-300ul multi-channel micropipette
      • 100ml and 500ml graduated cylinders.
      • Deionized or distilled water.
      • Pipette tips
      • Timer
      • Test tubes for dilution.

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  • 貨期：
    3-5 working days

產品評價

相關問答

■ 常見問題解答
Q:

What is the assay procedure?

A:

1. Prepare all reagents, samples, and working standards as instructed.
2. Refer to the Assay Layout Sheet to calculate the number of the wells (including a blank well) to be used and put the remaining wells and the desiccant back into the pouch to seal and store at 4 °C.
3. Add 50 µl of standard or sample (may require dilution) to each well, followed by 50 µl of HRP-conjugated ACE2 (not to the blank well). Shake the plate gently for 1 minute. Seal and incubate for 1 hour at  37 °C.
4. After thorough washing, add 90 μl of TMB Substrate Solution to each well. Incubate for 20 minutes at 37°C.
5. Add 50 µl Stop Solution to each well and gently tap the plate to ensure thorough mixing.
6. Read the OD (optical density) value at 450 nm within 5 minutes using a microplate reader.

Q:

What is the principle of the SARS-CoV-2 Neutralizing Antibody ELISA Kit?

A:
This assay is based on competitive method. The kit detects circulating neutralizing antibodies against SARS-CoV-2 that block the interaction between the receptor binding domain (RBD) of the viral spike glycoprotein with the ACE2 cell surface receptor.
Q:

Which applications can I use the SARS-CoV-2 neutralizing antibody ELISA kit for?

A:
1. Viral spike glycoprotein (RBD)/ACE2 receptor interaction studies;
2. Vaccine and Biologics development;
3. COVID-19 Epidemiology Studies.
Q:

Why should I choose the SARS-CoV-2 neutralizing antibody ELISA kit from CUSABIO?

A:
1. Simple, convenient and fast;
2. Operation can be completed in any laboratory setting;
3. Strong specificity, small inter-assay variation.
Q:

How Do SARS-CoV-2 Neutralizing Antibodies Work?

A:

Neutralizing antibodies (NAbs) are a type of special antibodies with the capacity of neutralizing viral toxicity. The invasion of SARS-CoV-2 into host cells depends on the interaction between the viral S protein and the ACE2 receptor on host cells. NAbs against SARS-CoV-2 specifically bind to the RBD within the S protein of SARS-CoV-2, blocking RBD-ACE2 receptor interaction, thus preventing the virus infect the host cells and clearing the virus. For more details about Neutralizing antibodies, please read this article: https://www.cusabio.com/c-21014.html



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