SERS Novel Multi-layer Dual-Modal Fluorescence-SERS Nanoprobes
The present invention relates to a multi-layer dual modal nanoprobe in which a Raman label compound (RLC) and a quantum dot (QD) are respectively applied with a silica shell placed therebetween, and a method for simultaneously detecting fluorescence and a Raman signal with respect to a target substa...
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Zusammenfassung: | The present invention relates to a multi-layer dual modal nanoprobe in which a Raman label compound (RLC) and a quantum dot (QD) are respectively applied with a silica shell placed therebetween, and a method for simultaneously detecting fluorescence and a Raman signal with respect to a target substance within a sample by using the same. According to the present invention, nanoprobes of 45 kinds in total may generate 45 spectrums respectively corresponding thereto by means of various combinations of the RCL and the QD. Therefore, the present invention can be used as a highly reliable diagnosis composition providing sensitivity and encoding performance which are significantly enhanced compared to prior art such as a linear discriminant analysis (LDA). According to the present invention, a yielded dual modal spectrum signal is converted into a barcode by means of a learning algorithm, such that analysis results of a large quantity in the high-throughput fluorescence-SERS analysis may be quickly read. To this end, the present invention comprises: a silica core particle; a metal-modified layer; a Raman label compound; a silica shell; and a fluorophore.
본 발명은 실리카 쉘을 사이에 두고 라만 표지 화합물(RLC)과 양자점(QD)이 각각 도입된 다층형 이중방식 나노프로브; 및 이를 이용하여 시료 내 표적 물질에 대한 형광 및 라만 신호를 동시에 검출하는 방법에 관한 것이다. 본 발명은 RCL과 QD의 다양한 조합을 통해 총 45종의 나노프로브가 각각 상응하는 45개의 스펙트럼을 생성함으로써 선형 판별 분석(LDA)을 비롯한 종래 기술과 비교하여 비약적으로 향상된 인코딩 능력과 민감성을 가진 신뢰도 높은 진단용 조성물로 유용하게 이용될 수 있다. 본 발명은 또한 수득된 이중방식 스텍트럼 신호를 학습 알고리즘을 통해 바코드로 전환함으로써 고처리(high-throughput) 형광-SERS 분석에서의 대량의 분석 결과를 신속하게 판독할 수 있다. |
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