Saisahas Kasrin, Soleh Asamee, Somsiri Sunita, Senglan Patthamaporn, Promsuwan Kiattisak, Saichanapan Jenjira, Kanatharana Proespichaya, Thavarungkul Panote, Lee Khai, Chang Kah Haw, Abdullah Ahmad Fahmi Lim, Tayayuth Kunanunt, Limbut Warakorn
Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
Nanomaterials (Basel). 2021 Dec 28;12(1):73. doi: 10.3390/nano12010073.
A 3D porous graphene structure was directly induced by CO laser from the surface of Kapton tape (carbon source) supported by polyethylene terephthalate (PET) laminating film. A highly flexible laser-induced porous graphene (LI-PGr) electrode was then fabricated via a facile one-step method without reagent and solvent in a procedure that required no stencil mask. The method makes pattern design easy, and production cost-effective and scalable. We investigated the performance of the LI-PGr electrode for the detection of methamphetamine (MA) on household surfaces and in biological fluids. The material properties and morphology of LI-PGr were analysed by scanning electron microscopy (SEM), energy dispersive x-ray (EDX) and Raman spectroscopy. The LI-PGr electrode was used as the detector in a portable electrochemical sensor, which exhibited a linear range from 1.00 to 30.0 µg mL and a detection limit of 0.31 µg mL. Reproducibility was good (relative standard deviation of 2.50% at 10.0 µg mL; = 10) and anti-interference was excellent. The sensor showed good precision and successfully determined MA on household surfaces and in saliva samples.
通过CO激光从由聚对苯二甲酸乙二醇酯（PET）层压膜支撑的Kapton胶带（碳源）表面直接诱导出3D多孔石墨烯结构。然后，通过一种简便的一步法，在无需模具掩膜的过程中，不使用试剂和溶剂制备出了高度柔性的激光诱导多孔石墨烯（LI-PGr）电极。该方法使图案设计变得容易，生产成本效益高且可扩展。我们研究了LI-PGr电极在家用表面和生物流体中检测甲基苯丙胺（MA）的性能。通过扫描电子显微镜（SEM）、能量色散X射线（EDX）和拉曼光谱对LI-PGr的材料特性和形态进行了分析。LI-PGr电极被用作便携式电化学传感器中的检测器，该传感器的线性范围为1.00至30.0 μg mL，检测限为0.31 μg mL。重现性良好（在10.0 μg mL时相对标准偏差为2.50%；n = 10），抗干扰性优异。该传感器显示出良好的精密度，并成功测定了家用表面和唾液样品中的MA。
