Cho Hui Hun, Jung Do Hyeon, Heo Jun Hyuk, Lee Chae Yeon, Jeong Sang Yun, Lee Jung Heon
School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
Research Center for Advanced Materials Technology (RCAMT), Core Research Institute (CRI), Suwon 16419, Republic of Korea.
ACS Appl Mater Interfaces. 2023 Apr 26;15(16):19785-19806. doi: 10.1021/acsami.3c00627. Epub 2023 Apr 17.
Gold nanoparticles (AuNPs) are useful nanomaterials as transducers for colorimetric sensors because of their high extinction coefficient and ability to change color depending on aggregation status. Therefore, over the past few decades, AuNP-based colorimetric sensors have been widely applied in several environmental and biological applications, including the detection of water pollutants. According to various studies, water pollutants are classified into heavy metals or cationic metal ions, toxins, and pesticides. Notably, many researchers have been interested in AuNP that detect water pollutants with high sensitivity and selectivity, while offering no adverse environmental issues in terms of AuNP use. This review provides a representative overview of AuNP-based colorimetric sensors for detecting several water pollutants. In particular, we emphasize the advantages of AuNP as colorimetric transducers for water pollutant detection in terms of their low toxicity, high stability, facile processability, and unique optical properties. Next, we discuss the status quo and future prospects of AuNP-based colorimetric sensors for the detection of water pollutants. We believe that this review will promote research and development of AuNP as next-generation colorimetric transducers for water pollutant detection.
金纳米颗粒（AuNPs）作为比色传感器的换能器是有用的纳米材料，因为它们具有高消光系数以及根据聚集状态改变颜色的能力。因此，在过去几十年中，基于金纳米颗粒的比色传感器已广泛应用于多种环境和生物应用中，包括水污染物的检测。根据各种研究，水污染物可分为重金属或阳离子金属离子、毒素和农药。值得注意的是，许多研究人员对能够高灵敏度和高选择性地检测水污染物，同时在金纳米颗粒使用方面不会产生不利环境问题的金纳米颗粒感兴趣。本文综述提供了用于检测几种水污染物的基于金纳米颗粒的比色传感器的代表性概述。特别是，我们强调了金纳米颗粒作为用于水污染物检测的比色换能器的优势，包括其低毒性、高稳定性、易于加工性和独特的光学特性。接下来，我们讨论了用于检测水污染物的基于金纳米颗粒的比色传感器的现状和未来前景。我们相信，本文综述将促进金纳米颗粒作为用于水污染物检测的下一代比色换能器的研究和开发。
