It is of great significance to develop a high-precision and high spatiotemporal resolution of stereoscopic detection technology to finely delineate the horizontal and vertical distributions of CO_(2).This study elabor...It is of great significance to develop a high-precision and high spatiotemporal resolution of stereoscopic detection technology to finely delineate the horizontal and vertical distributions of CO_(2).This study elaborates on the superiorities of single photon spectroscopy,key steps to develop a high-performance single photon LIDAR,and their potential applications.Single-photon CO_(2)LIDAR integrates quantum sensing techniques with classical spectral measurement techniques,and can overcome the detection limitations of traditional CO_(2)LIDAR in terms of detection distance,sensitivity,and spatiotemporal resolution.We anticipate that the single-photon spectroscopic technology can be widely applied in the detection of regional distribution and emission fluxes of CO_(2),transboundary transport fluxes of CO_(2),and in supporting the establishment of a new carbon monitoring framework.展开更多
Using a nuclear transplantation approach, the integration and expression of the green fluorescent protein (GFP) gene in the embryogenesis of transgenic loach (Misgurnus anguillicaudatus Cantor) have been studied. The ...Using a nuclear transplantation approach, the integration and expression of the green fluorescent protein (GFP) gene in the embryogenesis of transgenic loach (Misgurnus anguillicaudatus Cantor) have been studied. The GFP gene expression is first observed at the gastrula stage, which is consistent with the initiation of cell differentiation of fish embryos. The time course of the foreign gene expression is correlated with the regulatory sequences. The expression efficiency also depends on the gene configuration: the expression of pre-integrating circular plasmid at early embryos is higher than that of the linear plasmid. The integration of the GFP gene is first detected at the blastula stage and lasts for quite a long period. When two types of different plasmids are co-injected into fertilized eggs, the behavior of their integration and expression is not identical.展开更多
An organic compound exhibiting simultaneously reversible switch between its emission colors and luminescence mechanisms,possessing high contrast from deep blue normal fluorescence(NF) to yellow thermally activated del...An organic compound exhibiting simultaneously reversible switch between its emission colors and luminescence mechanisms,possessing high contrast from deep blue normal fluorescence(NF) to yellow thermally activated delayed fluorescence(TADF),is reported. Based on these two complementary colors, white-light emission combining NF and TADF from a single compound can be achieved in various states. Experimental results and density functional theory calculations indicate that the controllable conformational distribution under thermal and mechanical activation is the mechanism responsible for the reversible switching behavior.展开更多
基金supported by Excellent Young Scientists Fund of the National Natural Science Foundation of China(62322514,62322513)National Science Foundation of China(12174367)+1 种基金Anhui Science Fund for Distinguished Young Scholars(2308085J25)National Key Research and Development Program of China(2023YFC3709502,2022YFC3700100).
文摘It is of great significance to develop a high-precision and high spatiotemporal resolution of stereoscopic detection technology to finely delineate the horizontal and vertical distributions of CO_(2).This study elaborates on the superiorities of single photon spectroscopy,key steps to develop a high-performance single photon LIDAR,and their potential applications.Single-photon CO_(2)LIDAR integrates quantum sensing techniques with classical spectral measurement techniques,and can overcome the detection limitations of traditional CO_(2)LIDAR in terms of detection distance,sensitivity,and spatiotemporal resolution.We anticipate that the single-photon spectroscopic technology can be widely applied in the detection of regional distribution and emission fluxes of CO_(2),transboundary transport fluxes of CO_(2),and in supporting the establishment of a new carbon monitoring framework.
文摘Using a nuclear transplantation approach, the integration and expression of the green fluorescent protein (GFP) gene in the embryogenesis of transgenic loach (Misgurnus anguillicaudatus Cantor) have been studied. The GFP gene expression is first observed at the gastrula stage, which is consistent with the initiation of cell differentiation of fish embryos. The time course of the foreign gene expression is correlated with the regulatory sequences. The expression efficiency also depends on the gene configuration: the expression of pre-integrating circular plasmid at early embryos is higher than that of the linear plasmid. The integration of the GFP gene is first detected at the blastula stage and lasts for quite a long period. When two types of different plasmids are co-injected into fertilized eggs, the behavior of their integration and expression is not identical.
基金supported by the National Key R&D Program of China (2016YFB0401004)the National Natural Science Foundation of China (51625301, 51573059, 91233116)+1 种基金the National Basic Research Program of China (2015CB655003)Guangdong Provincial Department of Science and Technology (2016B090906003, 2016TX03C175)
文摘An organic compound exhibiting simultaneously reversible switch between its emission colors and luminescence mechanisms,possessing high contrast from deep blue normal fluorescence(NF) to yellow thermally activated delayed fluorescence(TADF),is reported. Based on these two complementary colors, white-light emission combining NF and TADF from a single compound can be achieved in various states. Experimental results and density functional theory calculations indicate that the controllable conformational distribution under thermal and mechanical activation is the mechanism responsible for the reversible switching behavior.
