The first near-infrared fluorescent probe was developed toward Cu(2+). Based on the photo-induced electron transfer (PET) mechanism, the probe exhibited weak fluorescence. Upon the addition of Cu(2+), it fluoresced strongly. The probe offered this unique capability, and was successfully applied to living cells, tissues and in vivo to visualize Cu(2+).
Good sense: A highly sensitive and selective ratiometric fluorescent probe for Fe2+ was developed by linking an Fe2+‐insensitive fluorophore to an Fe2+‐sensitive reporter–fluorophore fragment. The fluorescence intensity ratio increased linearly with the concentration of Fe2+ (see scheme). The probe was applied to the ratiometric imaging of intracellular and adscititious fluctuations of Fe2+ in live HL‐7702 and HepG2 cells.
The title compound (I) detects Cu2+ with high sensitivity and selectivity and its fluorescence increases ten‐fold during the reversible binding process.
The community with a shared future for mankind is taken from one of the theoretical sources, which is the innovative development of global history theory in contemporary times, which is Marx’s world history theory. A community with a shared future for humanity, on the other hand, is not the end shape of world history, but it is an important link in its growth. World history, on the other hand, being the theoretical source of a community with a shared future for mankind, includes logical stipulations on such a society. Clarifying the relationship between a community with a common future for mankind and global history, as well as accurately grasping the community’s transitional position in world history, is beneficial to better encouraging the development of a community with a shared future for mankind.
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