Editorial: Methods and advances for systems and synthetic biology, nanobiotech and medicine.

Congratulations to the winners of our cover competition. The first prize goes to the cover of the October issue, which was provided by the authors of the article "Chlorella species as hosts for genetic engineering and expression of heterologous proteins: Progress, challenge and perspective" by Bo Yang, Jin Liu, Yue Jiang and Feng Chen (http://dx.doi.org/10.1002/biot.201500617). Very close by only very few votes followed the July issue cover showing a nice illustration of Aspergillus fungi, which was selected by BTJs Production manager Sigi Mehren and Technical editor Bernadette Gmeiner. The winner of the book voucher was already informed via email. Many thanks to the more than 1000 participants who were voting for these covers!