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首页> 外文期刊>Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres >Development of a carboxymethyl chitosan functionalized nanoemulsion formulation for increasing aqueous solubility, stability and skin permeability of astaxanthin using low-energy method
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Development of a carboxymethyl chitosan functionalized nanoemulsion formulation for increasing aqueous solubility, stability and skin permeability of astaxanthin using low-energy method

机译:使用低能法制造羧甲基壳聚糖官能化纳米乳剂制剂的含水溶解度,施塔坦素水溶性,稳定性和皮肤渗透性

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摘要

In this research, firstly astaxanthin (ASX)-loaded nanoemulsions (NEs) were produced using a convenient low-energy emulsion phase inversion method. The optimised ASX-NEs were prepared in the presence of Cremophor (R) EL and Labrafil (R) M 1944 CS, with a surfactant-to-oil ratio of 4:6. The ASX-NE droplets were spherical with a mean droplet diameter below 100 nm and a small negative surface charge. The system was stable without alteration of mean droplet diameter for three months. Then, the ASX-NE was functionalised with carboxymethyl chitosan (CMCS) through direct CMCS (0.02%) incorporation during the preparation process. The ASX chemical stability and skin permeability increased in the following order: ASX solution control ASX-NE CMCS-ASX-NE. Cell viability assays on L929 cells revealed low cytotoxicity of blank NE, ASX-NE and CMCS-ASX-NE in the range from 5 to 500 mu g mL(-1). In conclusion, the CMCS-ASX-NE might be a promising delivery vehicle in dermal and transdermal products.
机译:在该研究中,使用方便的低能量乳液相反转方法制备首先是虾青素(ASX) - 加载的纳米乳液(NES)。优化的ASX-NE在Cremophor(R)EL和LabrafilM1944CS的存在下制备,表面活性剂至油比为4:6。 ASX-NE液滴是球形的,平均液滴直径低于100nm和小的阴性表面电荷。该系统稳定而不改变平均液滴直径三个月。然后,通过在制备过程中通过直接CMC(0.02%)掺入羧甲基壳聚糖(CMC)用羧甲基壳聚糖(CMC)进行官能化。 ASX化学稳定性和皮肤渗透率按以下顺序增加:ASX溶液控制< ASX-NE& CMCS-ASX-NE。 L929细胞上的细胞活力测定揭示了空白NE,ASX-NE和CMCS-ASX-NE的低细胞毒性,范围为5-500μgmm(-1)。总之,CMCS-ASX-NE可能是皮肤和透皮产品中有前途的递送型载体。

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