Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2017 May 8;3:17003. doi: 10.1038/micronano.2017.3

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2017 The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

Surface gradient characterization. (a) A montage of cropped fluorescent images from 8×16 contiguous chambers of the microjet array device (1/8th of the total area of the device), where a gradient is formed by opposing streams of 1 mM fluorescein and 45 mM Orange-G. The fluorescence intensity in each image is proportional to the concentration of fluorescein just above the surface³³. For clarity, alternate images have been flipped to ensure that the source of fluorescein is always lined up on the left. (b) A plot of fluorescent intensity line-traces (averaged over 10 pixels and obtained through the middle of the chamber) from all the working chambers in the device (n=720) taken 1 h after the initiation of flow. (c) A histogram plot of the best linear-fit slope angles of the line-traces in (b). The red dotted line denotes the average slope (−0.219 μm⁻¹) with a standard deviation of 0.056 μm⁻¹. (d) A plot of the fluorescent intensity line-traces from a typical chamber taken every 30 min for 10 h. (e) A histogram plot of the standard deviations of the slope angles over time for all the 720 chambers plotted in (b). The red dotted line denotes the average standard deviation of the slope (0.037±0.025 μm⁻¹).