Fold changes of lipids between the healthy and obese BCs. Quantities of shared lipids between each AuNP BCs are depicted as fold changes. Negative values indicate that the lipid was more abundant in healthy conditions, while positive values indicate that the lipid was more abundant in obese conditions. Individual graphs depict the 10 most altered lipids in terms of abundance between healthy and obese conditions. Supplementary Table S2 includes a comprehensive list of all lipid fold changes between healthy and obese conditions for each AuNP tested. PC indicates phosphatidylcholine lipids, and PCo indicates phosphatidylcholine alkyl ether lipids. Certain lipid names were shortened for brevity, which are listed in full here. 20:0 Cholesteryl ester… ester indicates 20:0 Cholesteryl ester, 18:0 Sitosteryl ester. Cholesteryl 11-hydroperoxy-eicosatetraenoate… indicates Cholesteryl 11-hydroperoxy-eicosatetraenoate, 22:2 Cholesteryl ester, 20:1 Stigmasteryl ester, 20:2 Sitosteryl ester. Lanosteryl palmitoleate… indicates lanosteryl palmitoleate, 18:2 Campesteryl ester. 18:3 Cholesteryl ester… indicates 18:3 Cholesteryl ester, 16:2 Stigmasteryl ester, 16:3 Sitosteryl ester. 18:2 Cholesteryl ester… ester indicates 18:2 Cholesteryl ester, zymosteryl oleate, 16:1 Stigmasteryl ester, 16:2 Sitosteryl ester.