Papers by Author: Yan Mo Chen

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Authors: Jing Jing Zhang, Jun Liu, Hao Yu, Yu Zhang, Mei Fang Zhu, Yan Mo Chen
Abstract: Crosslinked UPM/PHBV/PVP fibers were successfully prepared using electrospinning process. The active pharmaceutical ingredient tetracycline hydrochloride (TH) was loaded onto the electrospun fibers through after-treatment method. Scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) and in vitro dissolution tests were carried out to characterize the medicated electrospun fibers. The SEM and FTIR results clearly showed the difference between the UPM / PHBV and UPM/ PHBV/ PVPelectrospun fibers. The pharmaceutical tests results indicated that the fibers had good drug-loaded capability and sustained-release properties. The as-prepared fibers might find possible applications as wound dressings or transdermal drug delivery systems.
Authors: Shui Ping Liu, Xiao Qiang Li, Yan Su, Lian Jiang Tan, Yu Zhang, Yan Mo Chen
Abstract: In the present study an innovative tissue engineering scaffold was developed which can be used on wound dressing with a controllable drug-releasing capability. By coaxial electrospinning a coaxial nanofibrous mats were obtained which was made from Poly(L-lactid-co-ε-caprolactone) (PLLACL) and Tetracycline Hydrochloride (TCH), with P(LLA-CL) as the shell and TCH as the core. The TCH release behavior of the coaxial nanofibrous mats was measured by ultraviolet-visible (UV-vis) spectroscopy in vitro environment of 37°C for a maximum 180 hours. To compare with the method of mix electrospinning, TCH without any other material could encapsulated in P(LLA-CL) nanofibers very well and released for a long time.
Authors: Long Chen, Qi Zhang, Wen Ping Chen, Yao Gang Li, Yan Mo Chen, Mei Fang Zhu
Abstract: Ultrafine MgAl2O4 powders were synthesized by a nitrate-citrate sol-gel combustion process using Al(NO3)3·9H2O, Mg(NO3)2·6H2O and C6H8O7·H2O as initial materials. The result of X-ray diffraction (XRD) analysis indicated that single-phase MgAl2O4 powder could be obtained at 850 oC, which is much lower than that needed in solid-state reactions. Transmission electron microscopy image showed that the as-prepared powder was in the nano scale and little agglomerate exited. It is concluded that this process need shorter time, lower temperature, and simple equipments.
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