Detection Range: 96T1pg/ml - 32pg/ml
Purpose of Use: This kit is designed to quantify the level of interferon-beta (IFN-β) in human serum, plasma, and other related biological samples.
Principle of the Assay: The kit employs a sandwich ELISA method to detect IFN-β in the sample. A microtiter plate is pre-coated with a specific monoclonal antibody against human IFN-β, forming a solid-phase antibody. After adding the sample, IFN-β binds to the immobilized antibody. A horseradish peroxidase (HRP)-labeled secondary antibody is then introduced, which binds to the captured IFN-β, forming a complex of antibody-antigen-enzyme-labeled antibody. Following thorough washing to remove unbound components, a TMB substrate solution is added. Under the catalytic action of HRP, TMB turns blue and then changes to yellow upon addition of an acidic stop solution. The intensity of the color is directly proportional to the concentration of IFN-β in the sample. The optical density (OD) is measured at 450 nm using a microplate reader, and the IFN-β concentration is determined by comparing the OD values with a standard curve generated from known concentrations. This method ensures high specificity, sensitivity, and reproducibility for accurate quantification of IFN-β in various biological matrices.
Their structured compartments outshine basic Nonwoven Bags, which lack organization. Most backpacks feature padded laptop sleeves (rivaling Laptop Briefcases in protection), separate pockets for water bottles, and small slots for keys or pens, keeping items tidy. This organization makes them far more practical than a Cotton Canvas Bag, which often functions as a single large pouch.​
Durability is a key strength. Made from tough materials like nylon or polyester, they resist tears and water better than Promotional PVC Bags, which crack easily. Many are even weather-resistant, suitable for outdoor adventures where a Cooler Bag might be too bulky—though some backpacks include insulated sections, doubling as a Lunch Bag for picnics.​
Style varies widely: sleek designs fit office settings, while rugged ones suit hiking. This adaptability surpasses niche options like Wine Bags, which serve one purpose. Whether carrying textbooks, gym gear, or travel essentials, backpacks balance utility and comfort, proving indispensable for daily life.​
Backpacks: Ergonomic and Multifunctional Carriers​
Backpacks stand out as one of the most versatile bag types, blending ergonomic design with ample storage, making them ideal for diverse activities. Unlike single-strap Shopping Bags that strain one shoulder, backpacks distribute weight evenly across the back, reducing discomfort during long hours of use—perfect for students, hikers, or commuters.​
Backpacks stand out as one of the most versatile bag types, blending ergonomic design with ample storage, making them ideal for diverse activities. Unlike single-strap Shopping Bags that strain one shoulder, backpacks distribute weight evenly across the back, reducing discomfort during long hours of use—perfect for students, hikers, or commuters.​
Their structured compartments outshine basic Nonwoven Bags, which lack organization. Most backpacks feature padded laptop sleeves (rivaling Laptop Briefcases in protection), separate pockets for water bottles, and small slots for keys or pens, keeping items tidy. This organization makes them far more practical than a Cotton Canvas Bag, which often functions as a single large pouch.​
Durability is a key strength. Made from tough materials like nylon or polyester, they resist tears and water better than Promotional PVC Bags, which crack easily. Many are even weather-resistant, suitable for outdoor adventures where a Cooler Bag might be too bulky—though some backpacks include insulated sections, doubling as a Lunch Bag for picnics.​
Style varies widely: sleek designs fit office settings, while rugged ones suit hiking. This adaptability surpasses niche options like Wine Bags, which serve one purpose. Whether carrying textbooks, gym gear, or travel essentials, backpacks balance utility and comfort, proving indispensable for daily life.​
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