Study of Cucurbit[7]uril nanocoating on epitaxial graphene to design a versatile sensing platformShow others and affiliations
2021 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 563, article id 150096Article in journal (Refereed) Published
Abstract [en]
Present study aimed to develop nanocoating of cucurbit[7]uril (CB[7]) on surfaces of silicon and epitaxial graphene using drop casting and spin coating techniques. Here, we report a systematic study for the influence of sonication, probe sonication, and centrifugation time on the dispersion of CB[7] in aqueous solutions for the preparation of high-quality CB[7] nanocoating. Spin speed, spin time, and spin acceleration have been optimised to attain uniform films with minimum rms. Atomic force microscopy is used to study morphology, rms, and height of CB[7] nanocoating under different parameters. The presence of CB[7] on the nanocoating and its binding nature was determined by Infrared absorption and X-ray photoelectron spectroscopy. The present method of CB[7] nanocoating preparation is easy, versatile, scalable, and does not need the addition of electrolyte additives. Prepared CB[7] films are high-quality, uniform, and could be used as a novel sensing platform to tether required functional groups.
Place, publisher, year, edition, pages
ELSEVIER , 2021. Vol. 563, article id 150096
Keywords [en]
Cucurbituril; Epitaxial graphene; Silicon; Nanocoating; Sensing platform
National Category
Other Chemistry Topics
Identifiers
URN: urn:nbn:se:liu:diva-178263DOI: 10.1016/j.apsusc.2021.150096ISI: 000677878400001OAI: oai:DiVA.org:liu-178263DiVA, id: diva2:1585790
Note
Funding Agencies|Swedish Research CouncilSwedish Research CouncilEuropean Commission [2016-06014]
2021-08-182021-08-182021-08-18