免疫荧光技术（Immunofluorescence，IF）是一种用于检测和定位蛋白、抗体或其他生物分子的细胞成像技术。该方法涉及将荧光标记的抗体与待测分子结合，形成可发出荧光的免疫复合物。通过荧光显微镜观察，研究者能够在细胞或组织水平上可视化目标分子的位置和表达情况。IF 技术在生物医学研究、临床诊断和药物开发中广泛应用，为深入了解生物学和疾病机制提供了重要工具。

technology used to detect and locate proteins, antibodies or other biomolecules. This method involves combining a fluorescently labeled antibody with the molecule to be tested to form an immune complex that emits fluorescence. Through fluorescence microscopy, researchers can visualize the location and expression of target molecules at the cellular or tissue level. IF technology is widely used in biomedical research, clinical diagnosis and drug development, providing an important tool for in-depth understanding of biology and disease mechanisms.