Silicon chips lighten up

Roll up nanowire battery from silicon chips.

Here we report an approach to roll out Li-ion battery components from silicon chips by a continuous and repeatable etch-infiltrate-peel cycle. Vertically aligned silicon nanowires etched from recycled silicon wafers are captured in a polymer matrix that operates as Li(+) gel-electrolyte and electrode separator and peeled off to make multiple battery devices out of a single wafer. Porous, electr...

Nanoslits in silicon chips.

Potassium hydroxide (KOH) etching of a patterned [100] oriented silicon wafer produces V-shaped etch pits. We demonstrate that the remaining thickness of silicon at the tip of the etch pit can be reduced to approximately 5 microm using an appropriately sized etch mask and optical feedback. Starting from such an etched chip, we have developed two different routes for fabricating 100 nm scale sli...

Lighten up: the citation dilemma in qualitative research.

The balance between what we learn from research and what others have said about similar topics can pose dilemmas for qualitative researchers. How many citations are enough? How much allegiance do we owe to other scholars and how much to informants' lived experiences, our theoretical analyses, and the lessons we draw about methods and methodologies from our own experience as researchers? The var...

Vision Chips or Seeing Silicon

His-tags lighten up and lose their inhibitions.

T he ability to control molecular behavior in the four dimensions of time and space is almost uniquely afforded by light. Consequently, there has been a long history of the use of light to trigger molecular interactions in the study of biological phenomena or the creation of active biomolecules (1). One application of this principle has been in the fabrication of protein microarrays, a subset o...