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细菌活力/毒性检测试剂盒
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| 英文名称 | Bacterial viability / toxicity test kit |
|---|---|
| 储存温度 | 避光,-20°C储存 |
| 运输条件 | 超低温冰袋运输 |
| 产品介绍 |
产品介绍： 细菌活力/毒性检测试剂盒包含两种荧光染料，NucGreen 是绿色核酸染料，可染色活细菌和死细菌；EthD-III 是红色核酸染料，仅染色细胞膜受损的死细菌。将 NucGreen 和 EthD-III 适当混用，具有完整细胞膜的细菌呈现绿色，而具有受损细胞膜的细菌在不同通道下可分别呈现绿色和红色。 细菌活力的常见标准是在合适的营养培养基中繁殖的能力，称为生长测定。本试剂盒通常与在液体或固体培养基中的生长测定结果有着很好的一致性。然而，在某些条件下，膜损伤的细菌可能会在营养培养基中恢复并繁殖，而这种细菌在本测定中会被认定死菌。相反，一些具有完整膜的细菌可能无法在营养培养基中繁殖，但在本测定中会被认认定活菌。因此，若本试剂盒检测结果和细菌生长测定之间有较大的差异，应考虑上述可能。 产品参数： 细菌活力/毒性检测试剂盒包含两种荧光染料，NucGreen 是绿色核酸染料，可染色活细菌和死细菌；EthD-III 是红色核酸染料，仅染色细胞膜受损的死细菌。将 NucGreen 和 EthD-III 适当混用，具有完整细胞膜的细菌呈现绿色，而具有受损细胞膜的细菌在不同通道下可分别呈现绿色和红色。 细菌活力的常见标准是在合适的营养培养基中繁殖的能力，称为生长测定。本试剂盒通常与在液体或固体培养基中的生长测定结果有着很好的一致性。然而，在某些条件下，膜损伤的细菌可能会在营养培养基中恢复并繁殖，而这种细菌在本测定中会被认定死菌。相反，一些具有完整膜的细菌可能无法在营养培养基中繁殖，但在本测定中会被认认定活菌。因此，若本试剂盒检测结果和细菌生长测定之间有较大的差异，应考虑上述可能。 注意事项： 1. 使用前请将产品瞬时离心至管底，再进行后续实验。 2. 若使用孔板检测，可静置 10 min 后留少量菌液成像，能有效降低背景。 3. 为更接近真实结果，Merge图片时建议保持红色荧光与绿色荧光亮度一致。 4. 荧光染料均存在淬灭问题，实验操作时请尽量注意避光，以减缓荧光淬灭。 5. 为了您的安全和健康，请穿实验服并戴一次性手套操作。 应用范围： 死、活细菌染色 Product introduction： The bacterial viability / toxicity detection kit contains two fluorescent dyes. Nucgreen is a green nucleic acid dye that can stain live and dead bacteria; Ethd III is a red nucleic acid dye that only stains dead bacteria with damaged cell membranes. When nucgreen and ethd III are properly mixed, the bacteria with intact cell membrane appear green, while the bacteria with damaged cell membrane can appear green and red under different channels, respectively. A common criterion for bacterial viability is the ability to propagate in a suitable nutrient medium, known as a growth assay. This kit is generally in good agreement with the growth assay results in liquid or solid medium. However, under certain conditions, membrane damaged bacteria may recover and propagate in nutrient medium, and such bacteria will be identified as dead bacteria in this assay. On the contrary, some bacteria with intact membranes may not be able to propagate in nutrient medium, but will be recognized as viable bacteria in this assay. Therefore, if there is a large difference between the test results of this kit and the bacterial growth assay, the above possibilities should be considered. Product parameters： The bacterial viability / toxicity detection kit contains two fluorescent dyes. Nucgreen is a green nucleic acid dye that can stain live and dead bacteria; Ethd III is a red nucleic acid dye that only stains dead bacteria with damaged cell membranes. When nucgreen and ethd III are properly mixed, the bacteria with intact cell membrane appear green, while the bacteria with damaged cell membrane can appear green and red under different channels, respectively. A common criterion for bacterial viability is the ability to propagate in a suitable nutrient medium, known as a growth assay. This kit is generally in good agreement with the growth assay results in liquid or solid medium. However, under certain conditions, membrane damaged bacteria may recover and propagate in nutrient medium, and such bacteria will be identified as dead bacteria in this assay. On the contrary, some bacteria with intact membranes may not be able to propagate in nutrient medium, but will be recognized as viable bacteria in this assay. Therefore, if there is a large difference between the test results of this kit and the bacterial growth assay, the above possibilities should be considered. Matters needing attention： 1. please centrifuge the product to the bottom of the tube immediately before use, and then conduct subsequent experiments. 2. if the orifice plate is used for detection, a small amount of bacterial liquid can be left for imaging after standing for 10 min, which can effectively reduce the background. 3. in order to be closer to the real results, it is recommended to keep the brightness of red fluorescence consistent with that of green fluorescence in merge pictures. 4. fluorescent dyes have quenching problems. Please try to avoid light during experimental operation to slow down fluorescence quenching. 5. for your safety and health, please wear experimental clothes and disposable gloves. Scope of application： Staining of dead and live bacteria |
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