The thermal transitions of confined polymers are important for the application of polymers in molecular scale devices and advanced nanotechnology. However, thermal transitions of ultrathin polymer assemblies confined in subnanometre spaces are poorly understood. In this study, we show that incorporation of polyethylene glycol (PEG) into nanochannels of porous coordination polymers (PCPs) enabled observation of thermal transitions of the chain assemblies by differential scanning calorimetry. The pore size and surface functionality of PCPs can be tailored to study the transition behaviour of confined polymers. The transition temperature of PEG in PCPs was determined by manipulating the pore size and the pore–polymer interactions. It is also striking that the transition temperature of the confined PEG decreased as the molecular weight of PEG increased.

Get into the groove: Porous coordination polymers with basic interaction sites catalyze the fast and stereoselective polymerization of acetylene derivatives. The reactions take place in the one‐dimensional nanochannels of the coordination polymer (see picture).

It has been brought to the authors attention that the chemical structure for compound 11, shown in Table 3 in their recent Communication, was incorrectly drawn. The correct structure is shown below. The authors apologize for their oversight.

The non-canonical Hh inhibitor GANT61 decreased not only cell growth, but also the CSC population in TNBC cells. GANT61 enhanced the anti-cell growth activity of paclitaxel in these cells. These results suggest for the first time that GANT61 has potential as a therapeutic agent in the treatment of patients with TNBC.

[reaction: see text]. An N-S acyl-transfer-mediated preparation of peptide thioesters using the S-protected oxazolidinone derived from cysteine has been developed and applied to the synthesis of a 32-mer biologically active peptide by native chemical ligation protocols.