Welcome to the latest issue of the Materials Today journal.

I’d like to begin this issue with some important and exciting news… Over the last two decades, Materials Today has established itself as one of the most respected sources of information in materials science and engineering, with the primary journal recently achieving an Impact Factor of 17.793 (©Thomson Reuters Journal Citation Reports 2016). And as regular readers will be aware, for the last several years, the journal has focused on publishing invited reviews alongside news and comment on the latest advances.

But now, in addition to publishing invited reviews, the flagship Materials Today journal will also publish the most exciting original research papers from the materials community. As we expand to include original research contributions, the journal will also switch to a hybrid open access and subscription title. While I will continue as the Publisher of the Materials Today journals, I’d like to announce my departure as Editor of the journal, and welcome two new Editors-in-Chief: under the expert leadership of Professor Jun Lou of Rice University and Professor Gleb Yushin of Georgia Tech, the journal is now open for submissions showcasing the latest cutting-edge research.

But that's only part of the story, and I’m also very excited to announce the launch of two new journals in the Materials Today family: Materials Today Energy and Materials Today Chemistry. These new titles join Applied Materials Today, which launched last year, in a series of new specialist companion titles. Like Materials Today, each new title will offer a combination of the best peer-reviewed primary research and invited reviews from experts in the field. These topic focused journals also join our sound science publication, Materials Today Communications, and the conference proceedings publication, Materials Today: Proceedings. Regardless of the topic, article type or significance within the field, we hope there’ll be a suitable journal within the combined Materials Todayfamily.

You can find more information about the new direction for the family at www.materialstoday.com/about, but before I introduce the reviews featuring in this issue, I’d like to thank you all – readers, authors, reviewers, board members, and more – for all your support over my tenure as Editor, and your continued support as we take the Materials Todayfamily to the next level.

Beginning this issue, Peter C. Sherrell and Cecilia Mattevi discuss three-dimensional graphene networks are emerging as a new class of multifunctional constructs with a wide range of potential applications from energy storage to bioelectronics, in Mesoscale design of multifunctional 3D graphene networks. Next, Andrew C.A. Wan and colleagues review interfacial polyelectrolyte complexation fibers for tissue engineering, describing how they have been used to release protein factors in a sustained manner, made into random or spatially well-defined scaffolds and decorated with appropriate functionalities and extracellular matrices in Fibers by interfacial polyelectrolyte complexation – Processes, materials and applications. Bingyun Li et al. describe bone fracture repair and perspectives on challenges and future directions for developing nanomaterials for improved bone fracture repair, in Nanomaterials promise better bone repair. Finally, Igor L. Medintz and co-workers provide an overview of bioagents and then highlight the breadth of nanoscale sensors that have recently emerged for their detection, in Nanomaterial-based sensors for the detection of biological threat agents.

And so, as always, we hope you enjoy this issue of Materials Today.

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DOI: 10.1016/j.mattod.2016.09.011