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The article looks on the standard biobanking of gut microbiota. It states that consensus recommendations depicted various fundamental procedures and methods in management of clinical information for microbiota samples including stool, gastrointestinal mucosal tissue and oral samples. An overview on the standard facility and equipment for storage of gut micorbiota, is also mentioned.

Controllable arrangement of different ligands in a single assembly will not only bring increased complexity but also offers a new route to fine-tune the function of the designed architecture. We report here a combinatorial self-assembly with enPd(NO 3 ) 2 and three different ligands (L 1-3 ), which gave rise to a family of six palladium-organic cages (C1-6) with systematically varied shapes and cavities, including three new heteroleptic (Pd 5 L 1 2 L 2 , Pd 5 L 1 2 L 3 , Pd 4 L 2 L 3 ), one new homoleptic (Pd 4 L 3 2 ) cages, and two known homoleptic (Pd 6 L 1 4 , Pd 4 L 2 2 ) cages. Emergent functions due to the fusion of two half cavities on the heteroleptic cages from their parent homoleptic cages have been observed: the heteroleptic cages can form ternary complexes by co-encapsulation of both aromatic and aliphatic guests, while their homoleptic counterparts can only form binary complexes. Such a forced co-encapsulation effect endows the heteroleptic cages with enhanced catalytic power for the Knoevenagel condensation., (© 2022 Wiley-VCH GmbH.)

We report here a guest-reaction-induced mitosis-like host transformation from a known Pd 4 L 2 cage 1 to a conjoined Pd 6 L 3 twin-cage 2 featuring two separate cavities. The encapsulation of 1-hydroxymethyl-2-naphthol (G1), a known ortho-quinone methide (o-QMs) precursor, within the hydrophobic cavity of cage 1 is found crucial to realize the cage to twin-cage conversion. Confined G1 molecules within the nanocavity undergo self-coupling dimerization reaction to form 2,2'-dihydroxy-1,1'-dinaphthylmethane (G2) which then triggers the cage to twin-cage mitosis. The same conversion also proceeds, in a much faster rate, via the direct templation of G2, confirming the induced-fit transformation mechanism. The structure of the (G2) 2 ⊂2 host-guest complex has been established by X-ray crystallographic study, where cis- to trans- conformational switch on one bridging ligand is revealed., (© 2020 Wiley-VCH GmbH.)