CAJ | 학술논문

【目的】研究银包金纳米颗粒(Ag@AuNP)对结晶紫信号的增强效果与时间的关系。【方法】用新型纳米材料银包金纳米颗粒作为拉曼增强基底,采用785 nm激光激发结晶紫表面增强拉曼光谱,统计光谱特征峰强度变化趋势。【结果】结晶紫725 cm-1,801 cm-1,914 cm-1,1177 cm-1,1392 cm-1,1588 cm-1等特征峰强度在0~30 min内随时间的延长而逐渐升高,达到一个平台后随时间(30~36 min)的增加基本保持不变。【结论】最优最快的结晶紫表面增强光谱的测定时间约为30 min,该结论丰富了表面增强拉曼的研究成果。
【목적】연구은포금납미과립(Ag@AuNP)대결정자신호적증강효과여시간적관계。【방법】용신형납미재료은포금납미과립작위랍만증강기저,채용785 nm격광격발결정자표면증강랍만광보,통계광보특정봉강도변화추세。【결과】결정자725 cm-1,801 cm-1,914 cm-1,1177 cm-1,1392 cm-1,1588 cm-1등특정봉강도재0~30 min내수시간적연장이축점승고,체도일개평태후수시간(30~36 min)적증가기본보지불변。【결론】최우최쾌적결정자표면증강광보적측정시간약위30 min,해결론봉부료표면증강랍만적연구성과。
Objective]The aim of this study is to analyze the relationship between crystal violet signal enhancement effect of gold silver core-shell nanoparticles (Ag@AuNP)and time.[Meth-ods]The new nanomaterial Ag@AuNP is used as Raman enhancement substrate,and surface-enhanced Raman spectroscopy of crystal violet is induced by using 785nm laser excitation.The changes in characteristic peak intensity of Raman spectra are statistically analyzed.[Results]The intensity of crystal violet peaks at 725 cm-1 ,801 cm-1 ,914 cm-1 ,1177 cm-1 ,1392 cm-1 and 1588 cm-1 increases over time within 0~30 min,and does not change with time after reac-hing a plateau (30~36 min).[Conclusion]The best fastest measurement time to detect surface-enhanced raman spectrum of crystal violet is 30 min,which greatly improves the period associ-ated with surface-enhanced Raman studies.