Structured superhydrophilic coatings made from aminomalononitrile
The motivation for new versatile and biocompatible coatings incites researchers to try to copy solutions developed by living organisms like mussels able to adhere to all kinds of substrates in wet conditions. Another source of inspiration may be found in molecules containing reactive CN groups which have been formed in prebiotic conditions on the early formed Earth. Among such molecules, aminomalonitrile (AMN) has been shown to allow the formation of coatings on all kinds of known materials. In the present investigation, the deposition mechanism of AMN based coatings on silicon, quartz and glass is investigated. It is shown that the film deposition is preceded by a lag phase during which AMN undergoes already a transformation in solution. The obtained coatings undergo a morphological transition from islands to fibrillar structures with a concomitant change in composition and hydrophilicity. A putative structure based on X-ray photoelectron spectroscopy data is proposed for the AMN based films deposited at the solid-water interface.
Copyright (c) 2020 Nanomaterials Science & Engineering
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish in the Nanomaterials Science & Engineering agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after publication, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
Copyrights to illustrations published in the journal remain with their current copyright holders.
It is the author's responsibility to obtain permission to quote from copyright sources.
Any fees required to obtain illustrations or to secure copyright permissions are the responsibility of authors.