Category: NRG

Microfluidic control over millimeter scale alignment of collagen fibers

Type I collagen is a fibrous protein and the largest constituent of the ECM by mass. Collagen fibers are aligned across several millimeters to centimeters within load-bearing tissues, like the musculoskeletal tissue, cardiac tissue, and the cornea. Millimeter scale regions of…

Posted in NRG

Affinity Based Capture of Streptavidin Conjugated EVs on the ALine

This post is a continuation of the affinity based capture of streptavidin conjugated EVs. The difference is that instead of using the tangential flow system we used the ALine devices. Sam’s previous work discussed the use of ALine devices for…

Posted in NRG

Developing a Distributable µSiM ‘Transwell’-like Platform…Publication Figure Drafts

Introduction Here, I will post figure drafts for the paper that introduces the modular µSiM (m-µSiM). Figures Remaining data to obtain: Occludin staining in IMR90-4 from UniBe in µSiM. We have tried this after 2 day culture in µSiM, which worked…

Posted in memBrains, NRG

CRePE-ssNP UR Update Nov. 2021

To keep the NRG up-to-date on the goings-on in our collaboration with the University of Ottawa, we will plan to share our progress slide decks from the CRePE-ssNP group meetings that happen every two months. Periodically, we’ll also update the…

Posted in NRG

Competitive ELISA assay to measure the HA shedding from HUVEC monolayer

Competitive ELISA assay to measure the HA shedding from HUVEC monolayer Introduction The endothelial glycocalyx is a dense layer of proteoglycans, glycoproteins, and glycosaminoglycans (GAGs) that helps maintain the integrity of the endothelial cell (EC) barrier.1 The main GAGs are…

Posted in memBrains, NRG

Sampling Method Permeability Assay Optimization

Motivation We have discussed the optimization of our in situ permeability assay at length. This assay relies on confocal microscopy, which may not be accessible to all users of the µSiM. Therefore, we developed an alternative permeability assay in the…

Posted in memBrains, NRG

Immune Checkpoint Therapy – EV Analysis

Introduction & Motivation A subset of cancer cells has mutations that generate proteins recognized by the immune system as foreign, triggering the immune-mediated clearance of those cells. To avoid this fate, cancer cells can evolve mechanisms to suppress this antitumor…

Posted in NRG

Biphasic migratory response of endothelial cells to membrane porosity

Although most previous studies suggest a weakened cell-substrate interaction over porous membranes, there are variations in the observed cell responses, likely due to the use of different cell types, substrate materials, and experimental methods. We are seeking to develop a…

Posted in NRG

Strutting the Runway: Modeling the Microfluidics and Reaction Kinetics of the μSiM-DX

The development of the μSiM-DX has been swift and focused, as discussed in these previous blog posts: https://trace-bmps.org/beadazzled-laying-the-foundation-of-the-%ce%bcsim-dx-fouling-based-sensor/ and https://trace-bmps.org/vindictive-virus-capture-testing-the-%ce%bcsim-dx-with-vaccinia-virus-towards-a-modular-virus-diagnostic/. To provide a greater understanding of the inner workings of the device, I have done a few calculations regarding some of…

Posted in NRG, μSiM-DX

Thinkin’ Secretion in the µSiM

One of the many contributions Alec S. made to our group is to help us appreciate the importance of the apicobasal (A/B) polarity of endothelial cells. The effects of A/B polarity were demonstrated in his paper: Integrative Biology (2020), 12(11),275–289…

Posted in memBrains, NRG, μSiM
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