Starch nanoparticles were produced by dialysis method from octenyl succinic anhydre (OSA) and 1,4-butane sultone (BS). The properties of the self-assembled nanoparticles were characterized by NMR spectroscopy (DOSY), fluorescence spectroscopy and dynamic light scattering (DLS). In order to investigate the formation of hydrophobic microdomains, the Nile Red dye was used as a fluorescent probe to evaluate the critical aggregation concentration (CAC) of modified starch in aqueous solution. The results show that the entrapment of the molecular guest was effective and only restricted by the solubility limit of the starch. Then, the modified starch was applied to solubilize benzo[a]pyrene (BaP) in view of degradation by Fenton process. Finally, it has been shown that 95% of BaP was degraded when it was encapsulated in OSA-BS-starch nanoparticles.

通过透析方法由辛烯基琥珀酸酐（OSA）和1,4-丁烷磺酸内酯（BS）制备淀粉纳米颗粒。通过NMR光谱（DOSY），荧光光谱和动态光散射（DLS）表征了自组装纳米颗粒的性质。为了研究疏水性微区的形成，尼罗红染料被用作荧光探针来评估水溶液中改性淀粉的临界聚集浓度（CAC）。结果表明，截留分子客体是有效的，并且仅受淀粉的溶解度极限的限制。然后，考虑到通过芬顿法降解，将改性淀粉用于增溶苯并[a] py（BaP）。最后，已经证明当BaP被封装在OSA-BS淀粉纳米颗粒中时，其降解了95％。