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Multifunctional photochromic coordination polymers (CPs) have shown great potential in many areas, like molecular switches, anticounterfeiting, magnetics, and optoelectronics. Although multifunctional photochromic CPs can be obtained by introducing photoresponsive functional units or by exploiting the synergy effect of each component, relatively limited photochromic ligands hinder the development of various multifunctional photochromic CPs. In this work, we reported two multifunctional coordination polymers {[Zn(bpdo)(fum)(H 2 O) 2 ]} n ( 1 ) and {[Mn(bpdo)(fum)(H 2 O) 2 ]} n ( 2 ) based on an easily accessible but underestimated photoactive molecule 4,4'-bipyridine- N,N '-dioxide ( bpdo ). Compound 1 exhibits photochromism and white-light emission with an ultra-high color rendering index (CRI) of 92.1. Interestingly, compound 1 could emit intrinsic white light in the crystalline state upon UV irradiation both before and after photochromism. Meanwhile, compound 2 displays photochromic and photomagnetic properties, induced by the photogenerated radicals via a photoinduced electron transfer mechanism., Competing Interests: The authors declare no competing financial interest., (© 2023 The Authors. Published by American Chemical Society.)

Dendritic cells are a major class of professional antigen-presenting cells which play an important role in the immune response of parasite-infected host. This article summarizes the role of dendritic cells in the immunity to parasitic infection by analyzing the studies of protozoan, nematode, and trematode infections.