Controlled-release carriers for local drug delivery have attracted increasing attention for inner-ear treatment recently. In this paper, flower-shaped bovine serum albumin (FBSA) particles were prepared by a modified desolvation method followed by glutaraldehyde or heat denaturation. The size of the FBSA particles varied from 10 μm to 100 μm, and most were 50-80 μm. Heat-denatured FBSA particles have good cytocompatibility with a prolonged survival time for L929 cells. The FBSA particles were utilized as carriers to investigate the release behaviors of the model drug - rhodamine B. Rhodamine B showed a sustained-release effect and penetrated the round-window membrane of guinea pigs. We also confirmed the attachment of FBSA particles onto the round-window membrane by microscopy. The FBSA particles, with good biocompatibility, drug-loading capacity, adhesive capability, and biodegradability, may have potential applications in the field of local drug delivery for inner-ear disease treatment. © 2014 Yu et al.
CITATION STYLE
Yu, Z., Yu, M., Zhou, Z., Zhang, Z., Du, B., & Xiong, Q. (2014). Novel flower-shaped albumin particles as controlled-release carriers for drugs to penetrate the round-window membrane. International Journal of Nanomedicine, 9(1), 3193–3201. https://doi.org/10.2147/IJN.S59807
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