writer：Yongjun Zhang, * Ying Guan, Shuguang Yang, Jian Xu,* Charles C. Han
keywords：film
source：期刊
specific source：Advanced Materials, 2003, 15, 832-835.
Issue time：2003年
Hydrogen-bonding layer-by-layer self-assembly has been successfully extended from two-to three-dimensional systems, i.e., to layers on spherical particles. Hollow capsules (see Figure) were prepared by subsequent removal of the sacrificial core. The core-shell particles and hollow capsules should find applications in medicine and biology.