Abstract

This study investigated the biofouling potential of surface-enhanced Raman scattering (SERS)-based sensor materials in the context of marine environments. Uncoated and monolithic commercial gold (Au) silicon nanopillar array SERS substrates, Au-coated carbon black nanoparticle (AuCB NP) substrates, uncoated and Au sputter-coated in-house SERS, and uncoated and Au sputter-coated glass controls were tested for biofouling potential using Ulva spp. as model biofouling organisms. The mean percentages of Ulva spp. zoospores that adhered per mm² (×10³) on the uncoated and coated Au silicon nanopillar array, AuCB NP, uncoated and Au sputter-coated in-house, and uncoated and Au sputter-coated glass substrates were 10.28%, 5.45%, 10.49%, 3.25%, 24.84%, 12.86% and 7.78%, respectively. Results indicated that surface properties such as hydrophobicity, roughness, Au sputter-coating and the presence of micro-refuges on nano- and microstructured substrates were critical to the biofouling formation.

摘要

本研究调查了基于表面增强拉曼散射 (SERS) 的传感器材料在海洋环境中的生物污染潜力。对未涂层和单片商用金 (Au) 硅纳米柱阵列 SERS 基底、Au 涂层炭黑纳米粒子 (AuCB NP) 基底、未涂层和 Au 溅射涂层内部 SERS、以及未涂层和 Au 溅射涂层玻璃对照进行了生物污垢测试使用石莼属的潜力。作为模型生物污损生物。石莼属的平均百分比。^{未涂层和涂层Au硅纳米柱阵列、AuCB NP、未涂层和Au溅射涂层内部、以及未涂层和Au溅射涂层玻璃基板上每mm 2} (×10 ³ )粘附的游动孢子分别为10.28%、5.45%、分别为10.49%、3.25%、24.84%、12.86%和7.78%。结果表明，疏水性、粗糙度、金溅射涂层以及纳米和微结构基材上微避难所的存在等表面特性对于生物污垢的形成至关重要。