1. Cheng Sun

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    1. Mentioned In 6 Articles

    2. Longitudinal deep-brain imaging in mouse using visible-light optical coherence tomography through chronic microprism cranial window

      Longitudinal deep-brain imaging in mouse using visible-light optical coherence tomography through chronic microprism cranial window
      We longitudinally imaged both the superficial and deep cortical microvascular networks in brains of healthy mice and in a mouse model of stroke in vivo using visible-light optical coherence tomography (vis-OCT). We surgically implanted a microprism in mouse brains sealed by a chronic cranial window. The microprism enabled vis-OCT to image the entire depth of the mouse cortex. Following microprism implantation, we imaged the mice for 28 days and found ...
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    3. Methodology for Image-driven High-resolution Additive Manufacturing Using Discretized Data Set

      Methodology for Image-driven High-resolution Additive Manufacturing Using Discretized Data Set
      Additive manufacturing of patient-specific biomedical devices from 3D medical scans involves several steps of conversion which can introduce error into the final part. This is particularly critical to the fabrication of minute anatomical features, such as microvasculature. We show a direct conversion of the raw optical coherence tomography (OCT) volumetric data into photomasks in bitmap format, which streamlines the typical process steps used in 3D printing medical scans. OCT scans ...
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    4. Colposcopic imaging using visible-light optical coherence tomography

      Colposcopic imaging using visible-light optical coherence tomography
      High-resolution colposcopic optical coherence tomography (OCT) provides key anatomical measures, such as thickness and minor traumatic injury of vaginal epithelium, of the female reproductive tract noninvasively. This information can be helpful in both fundamental investigations in animal models and disease screenings in humans. We present a fiber-based visible-light OCT and two probe designs for colposcopic application. One probe conducts circular scanning using a DC motor, and the other probe is ...
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    5. Feature Of The Week 10/16/2016: Real-time Functional Analysis of Inertial Microfluidic Devices via Spectral Domain Optical Coherence Tomography

      Feature Of The Week 10/16/2016: Real-time Functional Analysis of Inertial Microfluidic Devices via Spectral Domain Optical Coherence Tomography
      ...n of novel inertial microfluidic particle sorting devices. For more information see recent Article . Courtesy Cheng Sun from Northwestern University . Inertial microfluidic devices have recently attracted considerable in...
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    6. Real-time Functional Analysis of Inertial Microfluidic Devices via Spectral Domain Optical Coherence Tomography

      Real-time Functional Analysis of Inertial Microfluidic Devices via Spectral Domain Optical Coherence Tomography
      We report the application of spectral-domain optical coherence tomography (SD-OCT) technology that enables real-time functional analysis of sorting microparticles and cells in an inertial microfluidic device. We demonstrated high-speed, high-resolution acquisition of cross-sectional images at a frame rate of 350Hz, with a lateral resolution of 3m and an axial resolution of 1m within the microfluidic channel filled with water. We analyzed the temporal sequence of cross-sectional SD-OCT images to determine ...
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  2. About Cheng Sun

    Cheng Sun

    Cheng Sun is an Associate Professor of Mechanical Engineering, McCormick School of Engineering and Applied Science.  His group aims to develop innovative technologies in pushing the capabilities into a whole new dimension, including super-resolution nano-imaging, high-throughput nano-fabrication/nano-manufacturing, high sensitivity biosensing, as well as high efficiency energy conversion. We are currently exploring a variety of projects in our group, including optical Metamatierals, Plasmonic nano-photonics, novel 3D micro/nano-fabrications, and nano-bio interface.