Contents: (Small 40/2017)

ElectrocatalysisIn article number 1701167, Guntae Kim, Qin Zhong, and Jong-Beom Baek, and coworkers report an efficient bifunctional electrocatalyst for hydrogen/ oxygen evolution in alkaline solution.The electrocatalyst is composed of porous cobalt phosphide polyhedrons with iron doping and exhibits significantly enhanced electrocatalytic activities for both hydrogen/oxygen evolution with long-term stability. PeptidesIn article number 1701316, by Gisbert Schneider and co-workers, a novel peptide descriptor enables the rational design of peptides based on their topological hydrophobic distribution.Applying this descriptor, a computational method generates an innovative peptide inspired by a natural template.This peptide is then trialed and optimized for its ability to disrupt bacterial cells by forming ordered, pore-like structures in membranes in an entropy-driven mechanism. SemiconductorsIn article number 1602967, Yanfeng Zhang, and Zhongfan Liu, and co-workers demonstrate that sulfur vacancies generated in MoS 2 /graphene heterostructures via a temperature-triggered process, lead to a decrease of the bandgap and n-doping effect of single layer MoS 2 .