Micrographs and flow measurements of bacterial aggregates on an oil droplet in a microchannel

This dataset contains both time lapse and high speed micrographs of a bacterial suspension flowing past stationary crude oil droplets in a microfluidic channel collected between February 2, 2017 and June 20, 2017 in a laboratory at Texas A&M University-Corpus Christi. Time lapse images are recorded at intervals between 30 sec and 5 min with an Andor EMCCD camera and high speed images are recorded at 1000 fps for 1 sec periods at intervals of 10 min with an IDT high speed camera. All images are acquired with a Nikon Ti-E microscope using DIC or phase contrast microscopy. Additionally processed images for PIV-assisted PTV measurements along with flow measurement data and particle position and velocity data are included. This dataset shows bacteria forming aggregates and streamers on the surface of an oil droplet and analyzes high speed imaging data for determining the hydrodynamic impact of said aggregates.本数据集收录了2017年2月2日至2017年6月20日期间，于得克萨斯农工大学科珀斯克里斯蒂分校（Texas A&M University-Corpus Christi）实验室采集的系列显微影像与配套数据，包含在微流控通道（microfluidic channel）内流过静止原油液滴的细菌悬浮液的延时摄影（time lapse）与高速显微图像（high speed micrographs）。其中延时图像通过Andor EMCCD相机以30秒至5分钟的间隔录制；高速图像则由IDT高速相机以1000帧每秒（fps）的速率采集1秒时长的画面，且每10分钟采集一次。所有图像均通过尼康Ti-E显微镜（Nikon Ti-E microscope）采集，采用微分干涉差（Differential Interference Contrast, DIC）或相差显微成像（phase contrast microscopy）技术。此外，数据集还包含粒子图像测速辅助粒子跟踪测速（Particle Image Velocimetry-assisted Particle Tracking Velocimetry, PIV-assisted PTV）处理后的图像，以及流动测量数据、颗粒位置与速度数据。本数据集记录了细菌在油滴表面形成聚集体与流带的过程，并针对高速成像数据展开分析，以确定上述聚集体所产生的流体动力学影响。