The invention relates to materials and methods for detecting interactions between lipid complexes and lipid binding agents. More specifically, the invention provides materials and methods for displaying lipid complexes, particularly those containing two or more different lipid molecules, on a hydrophobic surface so as to mimic their in vivo environment more closely than in other analytical methods. This allows more accurate detection of lipid complexes and even identification of lipid complexes which are not detected by other methods. The invention lends itself particularly well to array or microarray formats.
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