I could easily see a vast number of research projects using this for stroke if we had a great stroke association sponsoring research. But we don't have one that looks for solutions that will help survivors. Stroke survivors are screwed for another 50-100 years until we actually get some leadership in stroke and create a strategy to solve all the problems in stroke.
Ask your doctor if this new one is better than nanowires:

Harvard scientists have developed a first-of-its-kind method of creating a class of nanowires

The article on it here:

Researchers Inject Tiny, Rolled-Up Electronics into the Brain Using a Syringe

The research article here:

Syringe-injectable electronics

• Jia Liu,
• Tian-Ming Fu,
• Zengguang Cheng,
• Guosong Hong,
• Tao Zhou,
• Lihua Jin,
• Madhavi Duvvuri,
• Zhe Jiang,
• Peter Kruskal,
• Chong Xie,
• Zhigang Suo,
• Ying Fang
• & Charles M. Lieber

• Affiliations
• Contributions
• Corresponding authors

Nature Nanotechnology

10,

629–636

(2015)

doi:10.1038/nnano.2015.115

Received

14 December 2014

Accepted

28 April 2015

Published online

08 June 2015

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Abstract

• Abstract•
• References•
• Author information•
• Supplementary information

Seamless and minimally invasive three-dimensional interpenetration of electronics within artificial or natural structures could allow for continuous monitoring and manipulation of their properties. Flexible electronics provide a means for conforming electronics to non-planar surfaces, yet targeted delivery of flexible electronics to internal regions remains difficult. Here, we overcome this challenge by demonstrating the syringe injection (and subsequent unfolding) of sub-micrometre-thick, centimetre-scale macroporous mesh electronics through needles with a diameter as small as 100 μm. Our results show that electronic components can be injected into man-made and biological cavities, as well as dense gels and tissue, with >90% device yield. We demonstrate several applications of syringe-injectable electronics as a general approach for interpenetrating flexible electronics with three-dimensional structures, including (1) monitoring internal mechanical strains in polymer cavities, (2) tight integration and low chronic immunoreactivity with several distinct regions of the brain, and (3) in vivo multiplexed neural recording. Moreover, syringe injection enables the delivery of flexible electronics through a rigid shell, the delivery of large-volume flexible electronics that can fill internal cavities, and co-injection of electronics with other materials into host structures, opening up unique applications for flexible electronics.