James M. Porter

ORCID: 0000-0003-1990-3616
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About
Contact & Profiles
Research Areas
  • Graphene research and applications
  • Pancreatic function and diabetes
  • Diabetes and associated disorders
  • Thermal properties of materials
  • Diabetes Management and Research
  • Academic and Historical Perspectives in Psychology
  • Carbon Nanotubes in Composites
  • Educational and Psychological Assessments
  • Torture, Ethics, and Law
  • Diamond and Carbon-based Materials Research
  • Molecular Junctions and Nanostructures
  • Microfluidic and Capillary Electrophoresis Applications
  • Surface and Thin Film Phenomena
  • Thermal Radiation and Cooling Technologies
  • Educator Training and Historical Pedagogy
  • Mechanical and Optical Resonators
  • Open Education and E-Learning
  • Criminal Law and Evidence
  • Genetics and Neurodevelopmental Disorders
  • Legal Systems and Judicial Processes
  • Transportation Systems and Infrastructure
  • Nanopore and Nanochannel Transport Studies
  • Microfluidic and Bio-sensing Technologies
  • Dispute Resolution and Class Actions
  • Advanced biosensing and bioanalysis techniques

McGill University
2019-2023

Concordia University
2013-2017

The electronic thermal conductivity of graphene and 2D Dirac materials is fundamental interest can play an important role in the performance nano-scale devices. We report conductivity, $K_{e}$, suspended nearly intrinsic regime over a temperature range 20 to 300 K. present method extract $K_{e}$ using two-point DC electron transport at low bias voltages, where lattice temperatures are decoupled. find $K_e$ ranging from 0.5 11 W/m.K studied range. data consistent with model which heat carried...

10.1103/physrevb.87.241411 article EN Physical Review B 2013-06-27

With the aim of improving reproducibility capacitive immunosensors, we performed a comparative study four different insulating/immobilization chemistries. Each chemistry targeted areas an interdigitated electrode including alkyl thiol monolayer on surface, amino silane gaps between electrodes, and conformal coatings via passive adsorption probe spin-coated layer poly(methyl methacrylate) (PMMA). We analyzed dielectric properties these chemistries by comparing their behavior through...

10.1039/c9cp02129a article EN Physical Chemistry Chemical Physics 2019-01-01

Making use of bipolar transport in single-wall carbon nanotube quantum transistors would permit a single device to operate as both dot and ballistic conductor or two dots with different charging energies. Here we report ultra-clean 10 100 nm scale suspended large electron-hole asymmetry. The devices consist naked channels contacted sections tube under annealed gold. gold acts an n-doping top gate, allowing coherent transport, can create nanometre-sharp barriers. These tunnel barriers define...

10.1038/ncomms15491 article EN cc-by Nature Communications 2017-05-31

The possibility to make 10 nm scale, and low-disorder, suspended graphene devices would open up many possibilities study use of strongly coupled quantum electronics, mechanics, optics. We present a versatile method, based on the electromigration gold-on-graphene bow-tie bridges, fabricate low-disorder junctions dots with lengths ranging from 6 55 nm. control length junctions, shape their gold contacts by adjusting power at which process is allowed avalanche. Using carefully engineered...

10.1021/nl503151g article EN Nano Letters 2014-12-09

In vitro drug screening for type 1 diabetes therapies has largely been conducted on human organ donor islets proof of efficacy. While native are the ultimate target these drugs (either in situ or transplantation), significant benefit can be difficult to ascertain due highly heterogeneous nature individual donors and overall scarcity research. We present an coculture model based immortalized insulin-producing beta-cell lines with endothelial cells 3D spheroids that aims recapitulate islet...

10.1155/2023/6610007 article EN cc-by Journal of Diabetes Research 2023-12-23

Islet transplantation offers a long-term cure for Type 1 Diabetes (T1D), freeing patients from daily insulin injections. Therapeutic peptides have shown potential to increase the output of pancreatic islets, maximizing impact grafted cells. The islet neogenesis-associated protein (INGAP), and its bioactive core (INGAP-P), stimulate beta-cell function viability, offering possibility treatment prior implant. However, dosing efficacy is limited by low circulation time enzyme degradation. This...

10.3390/pharmaceutics14091833 article EN cc-by Pharmaceutics 2022-08-31

Capacitive immunosensors present a useful tool for non-invasive and label-free biosensing. Readily integrable with microfluidic platforms, interdigitated electrode (IDE) arrays can be specifically functionalized to detect antibody/antigen surface binding events. Here, AC electrokinetics are used enhance target overcome long incubation times diffusion limited miniaturization. This represents the first application of ACET enhancement human hormone detection in modeling diabetes.

10.1109/enbeng.2019.8692504 article EN 2019-02-01
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