Çikrik Şebnem, Çimen Duygu, Bereli Nilay, Denizli Adil
Department of Bioengineering Division, Institute of Science, Hacettepe University, Ankara, Turkey.
Department of Chemistry, Hacettepe University, Ankara, Turkey.
Turk J Chem. 2021 Sep 21;46(1):14-26. doi: 10.3906/kim-2106-21. eCollection 2022.
In this study, the curcumin imprinted and the non-imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-L-tryptophan) (poly(HEMA-MATrp)) nanoparticle based surface plasmon resonance (SPR) nanosensors were prepared for the detection of curcumin and characterized by zeta-size analysis, Fourier transform infrared spectroscopy, and scanning electron microscopy. After, the curcumin imprinted and the non-imprinted nanoparticles are attached on the surface of SPR chips. The curcumin imprinted and the non-imprinted SPR nanosensors are characterized by using atomic force microscope, ellipsometer, and contact angle measurements. Kinetic studies were carried out with curcumin aqueous solution at a concentration range of 0.01-150 mg/L using the curcumin imprinted and the non-imprinted SPR nanosensors. In all kinetic analysis, the response time is 14 min for equilibration, adsorption, and desorption cycles. The limit of detection and limit of quantification for the curcumin imprinted SPR nanosensors was 0.0012 mg/L and 0.0040 mg/L, respectively. The validity of the curcumin imprinted SPR nanosensors in real samples was carried out using liquid chromatography-tandem mass spectrometry (LC-MS).
在本研究中,制备了基于姜黄素印迹和非印迹聚(甲基丙烯酸2-羟乙酯-N-甲基丙烯酰-L-色氨酸)(聚(HEMA-MATrp))纳米颗粒的表面等离子体共振(SPR)纳米传感器用于检测姜黄素,并通过zeta尺寸分析、傅里叶变换红外光谱和扫描电子显微镜进行表征。之后,将姜黄素印迹和非印迹纳米颗粒附着在SPR芯片表面。通过原子力显微镜、椭偏仪和接触角测量对姜黄素印迹和非印迹SPR纳米传感器进行表征。使用姜黄素印迹和非印迹SPR纳米传感器对浓度范围为0.01-150mg/L的姜黄素水溶液进行动力学研究。在所有动力学分析中,平衡、吸附和解吸循环的响应时间均为14分钟。姜黄素印迹SPR纳米传感器的检测限和定量限分别为0.0012mg/L和0.0040mg/L。使用液相色谱-串联质谱(LC-MS)对姜黄素印迹SPR纳米传感器在实际样品中的有效性进行了验证。