The Raman depolarization ratios of gaseous CO2 in the spectral range of 1240-1430 cm-I are determined with a sensitive photoacoustic Raman spectroscopy, and more accurate data compared to the literature results are pr...The Raman depolarization ratios of gaseous CO2 in the spectral range of 1240-1430 cm-I are determined with a sensitive photoacoustic Raman spectroscopy, and more accurate data compared to the literature results are presented. The precision of the obtained depolarization ratio is achieved by measuring and fitting the dependence of the PARS signal intensity on the cross angle between the polarizations of two incident laser beams.展开更多
Organic-inorganic nanohybrid materials repre- sent a wide range of nanoscaled synthetic materials con- sisting of both organic and inorganic components that are linked together by covalent or non-covalent interactions...Organic-inorganic nanohybrid materials repre- sent a wide range of nanoscaled synthetic materials con- sisting of both organic and inorganic components that are linked together by covalent or non-covalent interactions, which have been widely employed in various fields such as optoelectronics, catalysis and biomedicine. As a result of this special combination, nanohybrid materials assemble numerous extraordinary features that provide great opportunities to improve their stability, multifunctions, biocom- patibility, eco-friendliness and other physical and mechanical properties. This review highlights recent re- search developments of functional organic-inorganic nanohybrid materials and their specific applications in bioimaging including fluorescent, Raman, photoacoustic and combined bioimaging. Future research directions and perspectives in this rapidly developing field are also discussed.展开更多
基金This work was supported by the National Natural Sci- ence Foundation of China （No.20903002, No.21273211, No.9112T042, and No.21373194） and the Anhui Provin- cial Natural Science Foundation （No.1408085MA18）, and the National Key Basic Research Special Founda- tion （No.2013CB834602 and No.2010CB923300）.
文摘The Raman depolarization ratios of gaseous CO2 in the spectral range of 1240-1430 cm-I are determined with a sensitive photoacoustic Raman spectroscopy, and more accurate data compared to the literature results are presented. The precision of the obtained depolarization ratio is achieved by measuring and fitting the dependence of the PARS signal intensity on the cross angle between the polarizations of two incident laser beams.
基金supported by the National Research Foundation(NRF),Prime Minister’s Office,Singapore,under its NRF Fellowship(NRF2009NRF-RF001-015)Campus for Research Excellence and Technological Enterprise(CREATE)Programme-Singapore Peking University Research Centre for a Sustainable Low-Carbon Future+1 种基金the NTU-A*STAR Silicon Technologies Centre of Excellence under the program Grant No.11235150003the NTU-Northwestern Institute for Nanomedicine
文摘Organic-inorganic nanohybrid materials repre- sent a wide range of nanoscaled synthetic materials con- sisting of both organic and inorganic components that are linked together by covalent or non-covalent interactions, which have been widely employed in various fields such as optoelectronics, catalysis and biomedicine. As a result of this special combination, nanohybrid materials assemble numerous extraordinary features that provide great opportunities to improve their stability, multifunctions, biocom- patibility, eco-friendliness and other physical and mechanical properties. This review highlights recent re- search developments of functional organic-inorganic nanohybrid materials and their specific applications in bioimaging including fluorescent, Raman, photoacoustic and combined bioimaging. Future research directions and perspectives in this rapidly developing field are also discussed.
