Jon Steven Dal Williams

ORCID: 0000-0003-1252-2431
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About
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Research Areas
  • Crystallization and Solubility Studies
  • Dendrimers and Hyperbranched Polymers
  • X-ray Diffraction in Crystallography
  • Advanced Polymer Synthesis and Characterization
  • Nanoparticle-Based Drug Delivery
  • Crystallography and molecular interactions
  • Thermal and Kinetic Analysis
  • Synthesis and properties of polymers
  • Nonlinear Optical Materials Research
  • Organic Chemistry Cycloaddition Reactions
  • Luminescence and Fluorescent Materials
  • biodegradable polymer synthesis and properties
  • Organic and Molecular Conductors Research
  • RNA Interference and Gene Delivery

University of Mississippi
2015-2020

Bridge University
2015

This study represents a successful approach toward employing polycaprolactone-polyamidoamine (PCL-PAMAM) linear dendritic block copolymer (LDBC) nanoparticles as small-molecule carriers in NIR imaging and photothermal therapy. A feasible robust synthetic strategy was used to synthesize library of amphiphilic LDBCs with well-controlled hydrophobic-to-hydrophilic weight ratios. Systems hydrophobic ratio higher than 70% formed aqueous media, which show hydrodynamic diameters 51.6 96.4 nm. These...

10.1021/acsabm.0c00432 article EN ACS Applied Bio Materials 2020-07-27

Presented are design principles for the combinatory usage of HB, XB, and π–π interactions to enhance solid-state properties essential optoelectronic device application.

10.1039/c8tc00074c article EN Journal of Materials Chemistry C 2018-01-01

The use of a thiophene-based building block (<bold>Pyr-T</bold>) to achieve supramolecular assembly driven by halogen bonding (XB) is described. X-ray crystallography, NMR, Raman spectroscopy, and computational chemistry afford evidence strong XB π–π stacking.

10.1039/c5ra16680b article EN RSC Advances 2015-01-01

ABSTRACT Herein, we present a facile and comprehensive synthetic methodology for the preparation of polyester‐polyamidoamine (PAMAM) (i.e., polyester: polylactide [PLA] (hydrophobic) polyamidoamine, PAMAM [hydrophilic]) polymers. A library PLA‐PAMAM linear dendritic block copolymers (LDBCs) in which both l d , were employed mass ratios 30:70, 50:50, 70:30, 90:10 (PLA:PAMAM) synthesized analyzed. When placed aqueous media, immiscibility hydrophilic hydrophobic segments leads to...

10.1002/pola.29409 article EN Journal of Polymer Science Part A Polymer Chemistry 2019-05-20

Abstract This study summarizes the synthesis, characterization, and evaluation of a library biocompatible self‐assembling Janus dendrimers (JDs) their resulting nanostructures possessing either cationic (NH 3 + ), anionic (COO − or neutral (OH) surface. Strategically designed for applications in therapeutic delivery, are comprised polyamidoamine (PAMAM) dendron as hydrophilic portion fatty acid (FA) functionalized dendrons hydrophobic portion. The physicochemical characterization vitro cell...

10.1002/cnma.202000498 article EN ChemNanoMat 2020-10-16
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