RatCol for 3D gels is 25 mL of 4 mg/ml, type I rat tail telocollagen solution for 2D coatings or 3D hydrogels. This kit for 3D gels comes with a neutralization solution for easy handling. Being telocollagen, RatCol for 3D gels will form firmer hydrogels than atelocollagen. RatCol Type I Acid Soluble Rat Tail Collagen contains 100 mg at a concentration of approximately 4 mg/mL in a 0.02M acetic acid solution (~pH 3). RatCol collagen is soluble telo-collagen. Each product includes a bottle containing 100 mg of collagen solution accompanied with a bottle of pre-formulated neutralizing solution for the formation of a collagen gel. This product is sterile filtered. This product is ideal for coating of surfaces, providing preparation of thin layers for culturing cells, or use as a solid gel. RatCol collagen is suitable for applications using a variety of cell lines including hepatocytes, fibroblasts and epithelial cells. Collagen Training Video: https://youtu.be/YcK2vUpNt0g