Category: NRG

Optical tweezer microrheology: HCIC User Meeting presentation

I recently presented an update at the HCIC User meeting on 11/10/23 detailing our efforts in exploring the use of optical tweezers to perform microrheology in type I/type III collagen hydrogels. These hydrogels are of interest for in vitro models

Posted in NRG

CAD-LB: Colocalization Detection Guide

Introduction In this post I will review work I have completed to further characterize the CAD-LB platform. In this set of experiments combinations of nanoparticle species were used to define colocalization limitations. More specifically, two nanoparticle species each labeled with

Posted in NRG, μSiM-DX

CAD-IA for traumatic brain injury (TBI) diagnostics

Introduction The glial fibrillary acidic protein (GFAP) is an intermediate protein released by astrocytes and has value as a  serum-based biomarker of neurological abnormalities including traumatic brain injury1. Inspired by the CAD-LB method for digital assessment of biomarkers on small

Posted in NRG

Nano-pocket Membrane Integration in Tangential Flow for Analyte Capture (TFAC) for Precise Size-Based Particle Capture

Introduction: Building upon previous research conducted by the Gaborski and McGrath labs, this poster introduces a novel approach to isolate extracellular vesicles (EVs) based on size. The earlier work involved the development of a tangential flow membrane capture system to

Posted in NRG

Modular assembly of the hToC: An adaptable protocol for interfacing a monolayer with a 3D culture

Introduction: This post presents a comprehensive protocol detailing an in vitro seeding and culturing method tailored for diverse cellular monolayer and tissue interfaces. These interfaces necessitate varying culturing conditions and extended timeframes, facilitated through modular device utilization. The methodology focuses

Posted in NRG

Investigating the potential of astrocytes as a neuroinflammation markers by assessing their activation state

Introduction Astrocytes, which are the most abundant glial cells and key components of the BBB, are known to play crucial roles in initiating and responding to neuroinflammation.1 Astrocytes’ activation after injuries suggests that they could potentially serve as a marker

Posted in NRG

Progress in Modelling Sepsis: Diminishing PMN chemotaxis towards fMLP gradients in µSiM Devices

First, a quick publication update. Recently we’ve published a paper on our efforts towards computationally analyzing polymorphonuclear leukocyte (PMN) trafficking on a vascular endothelium via hand-built µSiM flow cell devices. We record videos in phase contrast with a 40x objective

Posted in NRG

m-µSiM platform: TEER and Permeability for Open-Well iPSC-ECs and viability test for future flow module

Introduction Tissue barriers regulate the absorption of nutrients, maintain homeostasis, and prevent toxins from entering. As previously introduced, trans-epithelial/endothelial electrical resistance (TEER) measurements offer a non-destructive and real-time method to quantitatively evaluate the integrity of tissue barriers. During the process,

Posted in NRG

Biological Statistics SuperPlots Paper

For everyone conducting biological studies, this paper highlights how to think about sample size and replicates. It suggests using “SuperPlots”, which color codes data points from different experiments to better visualize the type of variability seen (i.e. random variability, experimental

Posted in NRG

Localizing Basement Membrane Production in Coculture BBB Model

Introduction The basement membrane (BM) is a critical component of a healthy blood-brain barrier (BBB) model. Further, the BM breaks down in several diseases. Both pericytes and endothelial cells can contribute to basement membrane production. This post will explore a

Posted in memBrains, NRG
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