Title :
A novel SERS active particle with highly bio-organics absorption affinity for the description of bacteria fingerprint
Author :
Chi-Chang Lin ; Yu, Chen-Yuan ; Yang, Ying-Mei ; Chu, Yung-Ming ; Lin, Hong-Ping ; Chang, Hsien-Chang
Author_Institution :
Inst. of Biomed. Eng., Nat. Cheng Kung Univ., Tainan
Abstract :
A novel metal nanoparticles@mesoporous silicas with high surface area (ap 300 m2g-1), large pore size (> 5.0 nm) and high metal nanoparticles content (ap 10 wt.%) have been prepared and used as surface enhanced matrix for bacteria charectization under Raman scattering analysis. The prepared nanoparticles@mesoporous silicas present great adhesion ability to direct contact with microorganism, i.e. S. aureus. The characterized peak at 1523 cm-1 can be gradually enhanced from original 200 counts to 1000 and 4000 counts when Au content increased to 6% and 4%, respectively.
Keywords :
adhesion; gold; mesoporous materials; microorganisms; nanoparticles; silicon compounds; surface enhanced Raman scattering; Au-SiO2; Raman scattering; S. aureus; SERS active particle; adhesion; bacteria fingerprint; highly bio-organics absorption affinity; mesoporous silicas; metal nanoparticles; microorganism; Absorption; Calcination; Fingerprint recognition; Gold; Mesoporous materials; Microorganisms; Nanoparticles; Protection; Raman scattering; Silicon compounds; Gelatin; Mesoporous silica; SERS; Template; nanoparticles;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
DOI :
10.1109/NEMS.2009.5068570