Ashna Rajeev

ORCID: 0000-0003-4510-1262
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Research Areas
  • 3D Printing in Biomedical Research
  • Advanced Cellulose Research Studies
  • Advanced Sensor and Energy Harvesting Materials
  • Additive Manufacturing and 3D Printing Technologies
  • Liquid Crystal Research Advancements
  • Lignin and Wood Chemistry
  • Ionic liquids properties and applications
  • Thermochemical Biomass Conversion Processes
  • Advanced Materials and Mechanics
  • Advancements in Transdermal Drug Delivery
  • Electrospun Nanofibers in Biomedical Applications
  • Hydrogels: synthesis, properties, applications
  • Tissue Engineering and Regenerative Medicine
  • Conducting polymers and applications
  • Polymer Nanocomposite Synthesis and Irradiation
  • Tactile and Sensory Interactions
  • Cellular Mechanics and Interactions
  • Bone Tissue Engineering Materials
  • Polymer crystallization and properties
  • Polysaccharides and Plant Cell Walls
  • Fiber-reinforced polymer composites
  • Electrohydrodynamics and Fluid Dynamics
  • Cell Image Analysis Techniques
  • Dyeing and Modifying Textile Fibers
  • Membrane Separation Technologies

University of Calgary
2021-2024

University of Waterloo
2024

Indian Institute of Technology Madras
2015-2019

Hyaluronic acid is a native extra-cellular matrix derivative that promises unique properties, such as anti-inflammatory response and cell-signaling with tissue-specific applications under its bioactive properties. Here, we investigate the importance of duration synthesis to obtain photocrosslinkable methacrylated hyaluronic (MeHA) high degree substitution. MeHA substitution can result in rapid photocrosslinking be used bioink for stereolithographic (SLA) three dimensional 3D bioprinting....

10.1088/1758-5090/ac25cb article EN Biofabrication 2021-09-10

Thermoresponsive poly(N-isopropylacrylamide) (PNIPAm) microgels were synthesized via free radical polymerization using four synthesis-solvents with varying polarity index: dioxane, tetrahydrofuran (THF), toluene, and cyclohexane. Characterization by FTIR, NMR, XRD confirmed the chemical structure of PNIPAm microgels. Microgels in polar solvents have a lower degree porosity display swelling values (around 275% 314% for THF respectively). In contrast, nonpolar toluene cyclohexane higher (about...

10.1016/j.jmrt.2021.05.009 article EN cc-by-nc-nd Journal of Materials Research and Technology 2021-05-12

Fabrication and operation on increasingly smaller dimensions have been highly integrated with the development of smart functional materials, which are key to many technological innovations meet economic societal needs. Along researchers worldwide, Waterloo Institute for Nanotechnology (WIN) has long realized synergetic interplays between nanotechnology materials designated 'Smart & Functional Materials' as one its four major research themes. Thus far, WIN utilized properties polymers,...

10.1088/1361-6528/ad4dac article EN cc-by Nanotechnology 2024-05-20

The influence of shear flow on the nanomechanical properties cellulose nanocrystal (CNC)/polyethylene glycol (PEG) composite films and distribution anisotropic phases are investigated at various CNC/PEG ratios. Here, drying process mixed suspensions is systematically traced by rheology, followed spatial mapping local mechanical nanoindentation. detailed study morphology polarized optical microscopy (POM) image analysis revealed link between flow. A comparison data obtained for shear-dried...

10.1021/acs.biomac.1c01392 article EN Biomacromolecules 2022-03-28

ABSTRACT The conversion of polymeric waste into useful, value added material is considered as an efficient method for management because the environmental issues caused by such materials. This work proposes a simple, cost‐effective strategy expanded polystyrene nanoparticles via nanoprecipitation. In this method, dissolved in suitable solvent example, tetrahydrofuran and to nonsolvent, water, precipitate diameter less than 500 nm. study also investigates influence various process parameters...

10.1002/app.42904 article EN Journal of Applied Polymer Science 2015-09-18

Water added to a solution of microcrystalline cellulose (MCC) in 1-allyl-3-methylimidazolium chloride (AmimCl) reduces the solvent quality and causes significant changes flow properties microstructure due restructuring aggregation molecules. We report an experimental investigation by means polarization optical microscopy (POM) rheology distinct phases formed 5-20 wt% MCC/AmimCl solutions addition water. With increase concentration, MCC/AmimCl/water mixtures showed different morphologies such...

10.1039/c8sm01448e article EN Soft Matter 2018-01-01

Abstract The liver, as one of the vital organs in body, plays a crucial role various bodily functions. Numerous factors can cause liver damage, that sole remedy for severe conditions is transplantation healthy tissue. In response to challenges, innovative approaches involving hydrogel-based technologies have emerged, leading creation highly functionalized tissues. development three-dimensional printing and patterning cell-laden biomaterial matrices offers promising advances creating...

10.1101/2024.04.17.589849 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2024-04-20

The role of colloidal particles in enhancing the mechanical and thermal properties liquid crystalline (LC) gels formed microcrystalline cellulose/1-allyl-3-methylimidazolium chloride/water mixtures is experimentally investigated by means rheology polarized optical microscopy (POM). overshoot loss modulus increase melting temperature LC domains as observed differential scanning calorimetry signal a stronger interaction cellulose with both hydrophobic polystyrene hydrophilic silica...

10.1021/acs.langmuir.9b01457 article EN Langmuir 2019-08-28
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