Zobrazeno 1 - 10
of 14
pro vyhledávání: '"785"'
Publikováno v:
Analytical Chemistry. 84:4300-4306
Total internal reflection (TIR) Raman and reflectivity spectra were collected for nonresonant analytes as a function of incident angle at sapphire or sapphire/smooth 50 nm gold interfaces using 785 nm excitation. For both interfaces, the Raman signal
Autor:
Sarah Tran, Kalpana S. Katti, Venkatesan Renugopalakrishnan, Ramachandra R. Dasari, Preetham Ravi, Dinesh R. Katti, Ramasamy Paulmurugan, Dorian Liepmann, Peter T. C. So, Jeon Woong Kang, Surya Pratap Singh
Publikováno v:
Analytical Chemistry. 92:14423-14431
MicroRNAs are emerging as both diagnostic and therapeutic targets in different human pathologies. An accurate understanding of the structural dependency of microRNAs for their biological functions is essential for designing synthetic oligos with vari
Autor:
Ping Wu, Chenxin Cai, Yingfang Xing, Erjin Zheng, Xiaojun Luo, Tuli Kang, Lijuan Jiang, Qiuming Yu
Publikováno v:
Analytical Chemistry. 91:7304-7312
Epigenetic modifications of DNA are known to modulate gene activity and expression and are believed to result in genetic diseases, such as cancer. Four modified cytosines were discovered in mammalian genomes: 5-methycytoine (5mC), 5-hydroxymethylcyto
Publikováno v:
Analytical Chemistry. 90:7275-7282
The realization of surface-enhanced Raman spectroscopy (SERS) to be a reliable quantitative analytical technique requires sensitive and reproducible enhancing substrates. Here, uniform three-dimensional (3D) Ag nanorod (AgNR) substrates with well-def
Autor:
Zhiwei Huang, Jian-Lin Ren, Hongzhi Xu, Ming Teh, Kan Lin, Wei Zheng, Mads Sylvest Bergholt, Jianfeng Wang, Khek Yu Ho, Khay Guan Yeoh
Publikováno v:
Analytical Chemistry. 87:960-966
This study aims to characterize the in vivo Raman spectroscopic properties of normal colorectal tissues and to assess distinctive biomolecular variations of different anatomical locations in the colorectum for cancer diagnosis. We have developed a no
Publikováno v:
Analytical Chemistry. 85:11297-11303
We report a novel method making use of multivariate reference signals of fused silica and sapphire Raman signals generated from a ball-lens fiber-optic Raman probe for quantitative analysis of in vivo tissue Raman measurements in real time. Partial l
Autor:
Anne Isabelle Henry, George C. Schatz, Richard P. Van Duyne, Martin G. Blaber, Nathan G. Greeneltch
Publikováno v:
Analytical Chemistry. 85:2297-2303
We describe the fabrication of optimized plasmonic substrates in the form of immobilized nanorod assemblies (INRA) for surface-enhanced Raman spectroscopy (SERS). Included are high-resolution scanning electron micrograph (SEM) images of the surface s
Publikováno v:
Analytical chemistry. 88(1)
Raman spectroscopy is emerging as a powerful tool for identifying hexavalent uranium speciation in situ; however, there is no straightforward protocol for identifying uranyl species in solution. Herein, uranyl samples are evaluated using Raman spectr
Publikováno v:
Analytical Chemistry. 83:1173-1179
Multiwavelength Raman microspectroscopy (MWRM) analysis for characterization of soot structure and reactivity was developed. This new method is based on the dispersive character of carbon D mode in Raman spectra (i.e., red shift and increase in inten
Publikováno v:
Analytical Chemistry. 81:8908-8915
Raman spectroscopy is a vibrational spectroscopic technique capable of optically probing the biomolecular changes associated with neoplastic transformation. The purpose of this study was to apply near-infrared (NIR) Raman spectroscopy in the high wav