Shin Min Jae
Department of Chemical and Biological Engineering, Andong National University, Andong 36729, Gyeongbuk, Republic of Korea.
Polymers (Basel). 2024 May 9;16(10):1347. doi: 10.3390/polym16101347.
This study develops a vitamin C controlled-release system, trackable via color changes as a function of vitamin C release. The system is composed of coaxial microfibers prepared via coaxial electrospinning, with a core of poly(ethylene oxide) (PEO) incorporating vitamin C, and a shell composed of polycaprolactone (PCL) containing polydiacetylene (PDA) as the color-changing material. The shell thickness is controlled by adjusting the amount of PCL ejected during electrospinning, allowing regulation of the release rate of vitamin C. When vitamin C added to PEO penetrates the PCL layer, the color of PDA changes from blue to red, indicating a color change. The results of this study can be applied to devices that require immediate detection of vitamin C release levels.
本研究开发了一种维生素C控释系统,可通过随维生素C释放而变化的颜色改变进行追踪。该系统由通过同轴静电纺丝制备的同轴微纤维组成,其核心是掺入维生素C的聚环氧乙烷(PEO),外壳由含有聚二乙炔(PDA)作为变色材料的聚己内酯(PCL)组成。通过调节静电纺丝过程中喷出的PCL量来控制外壳厚度,从而调节维生素C的释放速率。当添加到PEO中的维生素C穿透PCL层时,PDA的颜色从蓝色变为红色,表明发生了颜色变化。本研究结果可应用于需要即时检测维生素C释放水平的装置。