Brianna R. Knowles

ORCID: 0000-0003-3512-3599
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About
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Research Areas
  • Polymer Surface Interaction Studies
  • Marine Biology and Environmental Chemistry
  • Force Microscopy Techniques and Applications
  • Antimicrobial agents and applications
  • Lubricants and Their Additives
  • Surface Modification and Superhydrophobicity
  • Microplastics and Plastic Pollution
  • Bone Tissue Engineering Materials

University of Wollongong
2017-2020

ARC Centre of Excellence for Electromaterials Science
2017-2020

The growing need to develop surfaces able effectively resist biological fouling has resulted in the widespread investigation of nanomaterials with potential antifouling properties. However, preparation effective coatings is limited by availability reactive surface functional groups and our ability carefully control organize chemistries at a materials' interface. Here, we present two methods preparing hydrophilic low-fouling through reaction silica-nanoparticle suspensions predeposited films...

10.1021/acsami.7b04840 article EN ACS Applied Materials & Interfaces 2017-05-19

Hydrophilic surface chemistries can strongly bind water to produce surfaces that are highly resistant protein adsorption and fouling. The interfacial bound its distinct properties have intrigued researchers for decades, yet the relationship between three-dimensional structure function in antifouling coatings remains elusive. Here, we use hydrophilic, epoxy organosilane modified silica nanoparticles demonstrate cheap, robust, practically applied discover broad-ranging, ultralow fouling when...

10.1021/acsnano.8b06856 article EN ACS Nano 2018-10-18

The negative impacts that arise from biological fouling of surfaces have driven the development coatings with unique physical and chemical properties are able to prevent interactions species. Here, we report on low-fouling hydrophilic presenting nanoscaled features prepared different size silica nanoparticles (SiNPs) functionalized zwitterionic chemistries. Zwitterionic sulfobetaine siloxane (SB) was reacted SiNPs ranging in 7 75 nm. Particle stability grafting density were confirmed using...

10.1021/acs.langmuir.8b01550 article EN Langmuir 2018-08-07

Materials with protein resistant properties are increasingly sought after for their potential application as low-fouling surface coatings. Hydrophilic coatings improved resistance to fouling have been prepared from zwitterionic carboxybetaine (CB) functionalized silica nanoparticles (SiNPs). The authors report three methods of coating preparation via direct tethering CB predeposited particle films, a two-step functionalization process, and deposition dispersions. pH at which aqueous...

10.1063/1.5126467 article EN Biointerphases 2020-01-01

This work examines the antifouling effect of quaternary ammonium silane (QAS) grafted from coatings silica nanoparticles (SiNPs), independently and in combination with a zwitterionic sulfobetaine (SB) silane. The binding QAS to SiNP was monitored using quartz crystal microgravimetry dissipation monitoring (QCM-D) under varied pH solution concentrations. Adsorption bovine serum albumin protein reduced on modified prepared alkaline conditions due proposed generation pseudozwitterionic...

10.1116/1.5143141 article EN Biointerphases 2020-03-01

Thin film coatings prepared from commercially available glycidoxypropyltrimethoxysilane (GPS) modified silica nanoparticles (SiNPs) (Bindzil® CC301 and Bindzil® CC302) have previously shown excellent antifouling performance against a broad range of microbes [Molino et al., “Hydration layer structure biofouling-resistant nanoparticles,” ACS Nano 12, 11610 (2018)]. In this work, single cell force spectroscopy (SCFS) was used to measure the biological interactions between Epicoccum nigrum...

10.1116/6.0000142 article EN Biointerphases 2020-05-01
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