Silica Nanoparticles Functionalized with Zwitterionic Sulfobetaine Siloxane for Application as a Versatile Antifouling Coating System

ACS Applied Materials & Interfaces
Brianna R KnowlesPaul J Molino

Abstract

The growing need to develop surfaces able to effectively resist biological fouling has resulted in the widespread investigation of nanomaterials with potential antifouling properties. However, the preparation of effective antifouling coatings is limited by the availability of reactive surface functional groups and our ability to carefully control and organize chemistries at a materials' interface. Here, we present two methods of preparing hydrophilic low-fouling surface coatings through reaction of silica-nanoparticle suspensions and predeposited silica-nanoparticle films with zwitterionic sulfobetaine (SB). Silica-nanoparticle suspensions were functionalized with SB across three pH conditions and deposited as thin films via a simple spin-coating process to generate hydrophilic antifouling coatings. In addition, coatings of predeposited silica nanoparticles were surface functionalized via exposure to zwitterionic solutions. Quartz crystal microgravimetry with dissipation monitoring was employed as a high throughput technique for monitoring and optimizing reaction to the silica-nanoparticle surfaces. Functionalization of nanoparticle films was rapid and could be achieved over a wide pH range and at low zwitterion concentrations....Continue Reading

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Citations

Sep 24, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Shuangyang LiAnjie Dong
Aug 7, 2019·International Journal of Molecular Sciences·Cristina Cattò, Francesca Cappitelli
Jan 28, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Maryline Moreno-CouranjouPatrick Choquet
Jan 8, 2020·Biointerphases·Brianna R KnowlesPaul J Molino
Jan 3, 2021·Journal of Colloid and Interface Science·Xingyang XuJun Wang
Apr 26, 2021·Journal of Colloid and Interface Science·Xin SuLei Jiang
Jul 9, 2021·International Journal of Nanomedicine·Rafael R Castillo, María Vallet-Regí
Nov 15, 2018·ACS Applied Materials & Interfaces·Jessica Fernanda Affonso de OliveiraMateus Borba Cardoso
Aug 9, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Brianna R KnowlesPaul J Molino
Jan 28, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Jongmin LimYoshiyuki Saruwatari
Sep 25, 2021·ACS Applied Materials & Interfaces·Zhijuan SunJintao Yang
Oct 5, 2021·ACS Applied Materials & Interfaces·Li-Sheng WangVincent M Rotello

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