SERS CHIP 3D-RCW

3D Random Crossed-Wire SERS chip

PTT launches a 3D nanostructures sers chip, Silver nanowire 3D random crossed-wire woodpile (3D-RCW) nanostructures were designed and prepared. The 3D-RCW provides rich “antenna” and “hot spot” effects that are responsive for surface-enhanced Raman scattering (SERS) effects and plasmon-enhanced fluorescence (PEF). The RCW is very sensitive nanochip capable of emission and Raman-enhanced detections uses micro levels of analysis volumes. Consequently, and SERS of pesticides (thiram, carbaryl, paraquat, fipronil) were successfully measured and characterized, and their detection limits were within 5 μM~0.05 µM in 20 µL.

*Appl. Phys. Rev. 10, 041403 (2023); doi: 10.1063/5.0155256

*AFM, scale bar is 5 μm                              * SEM image of Ag NWs, scale bar is 1 μm

3D-RCW SERS chip is a very sensitive substrate, one drop of sample is enough to collect Raman spectrum. Users don’t need to add samples drop-wisely and repeatedly to get stronger and clearer SERS.

* (a) 20 μL of 10 μM R6G sprinkled onto glass was coated with variable densities of Ag NWs (20 μL × 1, 2, 3, 4, 5). (b) SERS collection at seven different locations on a freshly prepared 3D-RCW chip (top); these signals dropped by less than 10% when using a 3D-RCW prepared 80 days previously and left in the atmosphere. (c) SERS detection limit for R6G using a 3D-RCW chip with a 20 × 3 Ag NWs coating density. In (a), 10 μL of analyte was used to detect the SERS spectra.

Reference:
Molecules 2021, 26, 281.   https://doi.org/10.3390/molecules26020281

A 3D Plasmonic Crossed-Wire Nanostructure for Surface-Enhanced Raman Scattering and Plasmon-Enhanced Fluorescence Detection

1. Protrustech Co., Ltd., 3F.-1, No.293, Sec. 3, Dongmen Rd. East District

2. Department of Plant Pathology, National Chung-Hsing University

3. Advanced Plant Biotechnology Center, National Chung Hsing University

4. Graduate Institute of Biomedical Engineering, National Chung Hsing University

5. Intelligent Minimally-Invasive Device Center, National Chung Hsing University

●  SARS-Cov-2  S-protein vs Antibody 1A9-protein

●    D- bilirubin  LOD  :  10^-9 M

●  Microorganism application - E-Coli & S.aureus

●    Pharmaceutical application - PTZ：Antitumor Drugs

●    Biochemistry application-The performance of quadruplex Structures of DNA in different carbon chains

Papers Reference: 

uploadfiles/624/論文發表/30_mrid532_direct-bilirubin-detection-r1.pdf

uploadfiles/624/論文發表/35_-mrid_-direct-bilirubin-main_1_.pdf

uploadfiles/624/論文發表/39-mrid.pdf