title: Preparation of a novel composite nanofiber gel-encapsulated human placental extract through layer-by-layer self-assembly.
abstract: Aqueous human placenta extract (HPE) has been previously used to treat chronic soft tissue ulcer; however, the optimal dosage of HPE has yet to be elucidated. The present study investigated a novel nanofiber gel composed through layer-by-layer (LbL) self-assembly, in which HPE was encapsulated. IKVAV, RGD, RAD16 and FGL-PA were screened and combined to produce an optimal vehicle nanofiber gel through LbL assembly. Subsequently, the aqueous HPE was encapsulated into this nanofiber at the appropriate concentration, and the morphology, particle size, drug loading efficacy, encapsulation rate, release efficiency and structure validation were detected. The encapsulation efficiency of all three HPE samples was >90%, the nanofiber gel exhibited a slow releasing profile, and the structure of HPE encapsulated in the nanofiber gel was unvaried. In conclusion, this type of novel composite nanocapsules may offer a promising delivery system for HPE.
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Guohui
authors.initials: G
authors.lastname: Liu
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: X I
authors.initials: XI
authors.lastname: Chen
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: W U
authors.initials: WU
authors.lastname: Zhou
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Shuhua
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Shunan
authors.initials: S
authors.lastname: Ye
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Faqi
authors.initials: F
authors.lastname: Cao
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Y I
authors.initials: YI
authors.lastname: Liu
authors.affiliation: Department of Orthopedics, Union Hospital, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xiong
keywords: aqueous extract of human placenta; nanocomposite gel fiber; novel layer-by-layer self-assembly