微塑料
材料科学
纳米技术
肽
环境污染
生化工程
环境科学
环境化学
化学
生物化学
环境保护
工程类
作者
Suyeon Ahn,Namju Kim,Yonghyun Choi,Jiwon Kim,Han‐Na Hwang,Cholong Kim,Hee‐Young Lee,Seungyoun Kim,Jin Su Kim,Hyun Ho Lee,Jonghoon Choi
出处
期刊:Biosensors
[MDPI AG]
日期:2024-03-12
卷期号:14 (3): 140-140
摘要
The escalating utilization of plastics in daily life has resulted in pervasive environmental pollution and consequent health hazards. The challenge of detecting and capturing microplastics, which are imperceptible to the naked eye, is exacerbated by their diminutive size, hydrophobic surface properties, and capacity to absorb organic compounds. This study focuses on the application of peptides, constituted of specific amino acid sequences, and microneedles for the rapid and selective identification of microplastics. Peptides, due to their smaller size and greater environmental stability compared with antibodies, emerge as a potent solution to overcome the limitations inherent in existing detection methodologies. To immobilize peptides onto microneedles, this study employed microneedles embedded with gold nanorods, augmenting them with sulfhydryl (SH) groups at the peptides’ termini. The sensor developed through this methodology exhibited efficient peptide binding to the microneedle tips, thereby facilitating the capture of microplastics. Raman spectroscopy was employed for the detection of microplastics, with the results demonstrating successful attachment to the microneedles. This novel approach not only facilitates localized analysis but also presents a viable strategy for the detection of microplastics across diverse environmental settings.
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