Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A schematic illustration of the concept (a) and cross-section (b) of the spheroid chip. Polydimethylsiloxane (PDMS) microchannels and the array of wells were bound to a silicon substrate. (c) The master mold for fabricating PDMS microchannels using two-step photolithography. (d) The fabricated microchannels which were attached to the glass substrate. (e) The tip scanned over the spheroid for measurement. The scale bar is set at 1 mm. (Reproduced from Reference [23]).
