80电影天堂网,少妇高潮一区二区三区99,jαpαnesehd熟女熟妇伦,无码人妻精品一区二区蜜桃网站

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:南京東南大學(xué)九龍湖校區(qū)化工樓418室
  • 郵編:211189
  • 電話:025-52090196
  • 傳真:
  • Email:yangh@seu.edu.cn
當(dāng)前位置:> 首頁 > 論文著作 > 正文
(Small) Magnetic Micromotors with Spiky Gold Nanoshells as SERS Sensors for Thiram and Bacteria Detection
作者:Yang, T.; Zhou, J.; Wang, Y.; Fan, B.; Qiao, J.; Chen, L.; Wang, X.; Guo, L.; Yang, H.*; Li, Q.*
關(guān)鍵字:Gold Nanoshell
論文來源:期刊
具體來源:Small, 2024, 20, 2405193.
發(fā)表時間:2024年

Surface enhanced Raman scattering (SERS) is widely used in all kinds of detections due to its ultrahigh sensitivity and selectivity. Micromotors when using as SERS sensors, or the so-called “hotspots on the fly”, can combine both controlled mobilities and SERS sensing capacities, and are ideal for versatile in-situ detections. In this work, we have successfully fabricated mobile SERS sensors by growing gold nanospikes onto magnetic microsphere surfaces. These mobile micromotors can act as normal SERS sensors, which is characterized by the trace detection of thiram, a highly toxic fungicide. The detection limit can reach 0.1 nM, as good as most other Nobel metal deposited substrates. With magnificent magnetic gradient forces, separation of pathogenic bacteria from bulk solution has been achieved once these magnetic micromotors bind with bacterial cells. Manipulated propulsion of micromotors, on the other hand, enables them to approach and contact pathogenic bacterial cells on command and further acquire Raman spectra under controlled degree of contact, a capability never seen with passive sensors. Our robotic SERS sensors have demonstrated unique sensing characterization with controlled manipulations along with detections.