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Colloidal suspensions of microscopic particles show complex and interesting collective behaviors. In particular, the collective dynamics of colloids is fundamental and ubiquitous for materials assembly, robotic motion, microfluidic control, and in several biological scenarios. The collective dynamics of confined colloids can be completely different from that of free colloids: for instance, confined colloids can self-organize into vortex structures, coherent motion, or different phase behaviors. On one hand, due to the complexity of colloidal suspensions, how to finely tune the collective dynamics of confined colloids remains elusive. On the other hand, since the microscale confinement is on the same length scale as the colloidal size, it is difficult to determine how the colloids interplay with each other and the geometrical constraints.
Комитет Госдумы по обороне одобрил законопроект о продлении ДСНВ
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Cancer is the second leading cause of death in the world. The number of deaths and incidences is increasing each year. The metal-based anticancer drugs were used clinically worldwide, but suffer from poor selectivity, serious side effects and drug resistance. Tumor-targeting drug development is the basis for precise cancer treatment.
Recently, Professor Hongke Liu of Nanjing Normal University, Professor Jing Zhao and Academician Zijian Guo of Nanjing University have made breakthrough achievements in anticancer drug development. They proposed a bio-orthogonally catalyzed lethality (BCL) strategy (Figure 1) and published their results in National Science Review (National Science Review, NSR). The BCL strategy uses tumors as manufacturing factories to generate a highly potential tumor-targeted drug Ru-rhein, which can selectively kill cancer cells and tumors in tumor-bearing mice, while no toxicity on normal cells. BCL strategy generates targeting dr
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IMAGE: The spatial distribution of tidal wetlands and the observed C accumulation rate (CAR) points. The right panel indicated the arithmetic average CAR at every 10-degree bands of latitude. view more
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Coastal Blue Carbon (BC), which includes mangrove and saltmarsh tidal wetlands, of which was first coined a decade ago to describe the disproportionately large contribution of coastal vegetated ecosystems to global carbon sequestration. The role of BC in climate change mitigation and adaptation has now reached international prominence. Recent studies have reported BC s unique role in mitigating climate change, projected coastal wetlands area change, carbon stocks in response to historical sea level rise fluctuations, and the future roadmap relative to carbon sequestration studies. However, several questions remain unanswered:
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IMAGE: (a) Typical Reactivity Modes of -N2 Units in Transition Metal-Dinitrogen Complexes; (b) This Work: Catalytic Reactivity of Mo-N2 Units in the Disproportionation of Cyclohexadienes and Isomerization of Terminal Alkenes. view more
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Dinitrogen (N2) fixation is considered as one of the most essential tasks in basic science, providing straightforward methods to produce ammonia and nitrogen-containing molecules. Exploring the reactivity of N2 units of transition metal-nitrogen complexes is of great significance and challenging in the chemistry. Since the first Ru-N2 complex was prepared in 1965, important progress has been made in the synthesis and reactivity of transition metal nitrogen complexes. In many cases, terminal end-on M-N2 complexes as the most prevalent bonding mode were proved to be effective to catalyze reductive reactions of N2 to afford ammonia or silylamines; moreover, due to the nucleophilicity of dinitrogen moiet
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