We present the most downloaded papers of the pss journal family from December.

Book review: Nanomaterials in Tissue Engineering
SUNY professor Balaji Sitharaman reviews Nanomaterials in Tissue Engineering.

Book Review: Nanomaterials for Medical Applications
Professor Bengt Fadeel of Stockholm’s Karolinska Institutet reviews Nanomaterials for Medical Applications by Zoraida Aguilar.

A new class of graphene-based electronics?
Using electrons more like photons could provide the foundation for a new type of electronic device.

Armadillos and spacecraft: new polymeric materials for thermal protection
The novel paradigm of flexible thermal protection systems based on elastomeric ablative materials is presented.

This week in the materials industry: January 31st 2014
Headlines from the last seven days of materials science industry news.

Graeme Moad on the status of the RAFT dilemma
Developments in understanding the mechanism and kinetics of dithiobenzoate-mediated RAFT polymerization from 2006 to 2013 are critically assessed.

Drawing chemical sensors on paper with a flexible toy pencil
Research team at Northwestern University show that chemical sensors capable of detecting toxic vapors can be drawn with a toy pencil on paper.

December highlights from physica status solidi
Spin crossover complex, carbon onions, quantum dots, and chalcogenide glasses – all these in our December’s physics highlights.

Book review: Nanotechnology for the Energy Challenge
Markku Leskelä, of the Department of Chemistry, University of Helsinki, Finland provides another review for Nanotechnology for the Energy Challenge.