Nanostructures, including metal nanowires, semiconducting nanowires, carbon nanotubes, and graphene sheets, have been widely used as the building blocks or drug carriers for different kinds of applications (such as flexible photoelectronics, e-skins, soft machines, implantable electronics, drug delivery, health monitoring, and tissue engineering). In these different applications, one of the emerging fields, flexible electronics, has attracted significant attention in both academic research and industrial applications during the past decade, and the next decade will be a period of rapid expansion for flexible electronics. For instance, a conservative estimate believes that the market of the flexible display will increase at least by ten times in the next five years. As fundamental research is called to fulfill the demands of industry, the development of such nanotechnology and nanoscience has offered a good platform for flexible electronics. Besides, another very promising societal impact of nanotechnology is in the area of nanomedicine. Nanostructure based drug carriers allow for not only the delivery of small-molecule drugs, but also the delivery of peptides, nucleic acids and proteins, and so on. Targeting delivery of all these drug molecules to specific localization/area will reduce systemic side effects and allow for more efficient use of the drug.

This special issue will be focused on nanostructures for flexible electronics and their applications in drug delivery. We invite review and original research articles that provide new methods, new procedures, new results, or new understanding in this field.

Potential topics include but are not limited to the following:

• Synthesis of nanostructures which are potentially useful in flexible electronics
• Flexible transparent electrodes
• Flexible functional materials
• Flexile electronic devices and energy devices
• Soft machines and implantable electronics
• Nanostructures for different drugs delivery (including peptides, small molecules, and nuclear acid and proteins)