NDLI: Surface Wrinkling on Polydimethylsiloxane Microspheres via Wet Surface Chemical Oxidation

Content Provider	PubMed Central
Author	Yin, Jian Han, Xue Cao, Yanping Lu, Conghua
Copyright Year	2014
Abstract	Here we introduce a simple low-cost yet robust method to realize spontaneously wrinkled morphologies on spherical surfaces. It is based on surface chemical oxidation of aqueous-phase-synthesized polydimethylsiloxane (PDMS) microspheres in the mixed H2SO4/HNO3/H2O solution. Consequently, curvature and overstress-sensitive wrinkles including dimples and labyrinth patterns are successfully induced on the resulting oxidized PDMS microspheres. A power-law dependence of the wrinkling wavelength on the microsphere radius exists. The effects of experimental parameters on these tunable spherical wrinkles have been systematically investigated, when the microspheres are pre-deposited on a substrate. These parameters include the radius and modulus of microspheres, the mixed acid solution composition, the oxidation duration, and the water washing post-treatment. Meanwhile, the complicated chemical oxidation process has also been well studied by in-situ optical observation via the microsphere system, which represents an intractable issue in a planar system. Furthermore, we realize surface wrinkled topographies on the whole microspheres at a large scale, when microspheres are directly dispersed in the mixed acid solution for surface oxidation. These results indicate that the introduced wet surface chemical oxidation has the great potential to apply to other complicated curved surfaces for large-scale generation of well-defined wrinkling patterns, which endow the solids with desired physical properties.
Related Links	http://dx.doi.org/10.1038/srep05710
Starting Page	5710
File Format	PDF
ISSN	20452322
e-ISSN	20452322
Journal	Scientific Reports
Volume Number	4
Language	English
Publisher	Nature Publishing Group
Publisher Date	2014-07-16
Access Restriction	Open
Rights Holder	Nature Publishing Group
Subject Keyword	Science and technology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Surface Wrinkling on Polydimethylsiloxane Microspheres via Wet Surface Chemical Oxidation

Effect of angstrom-scale surface roughness on the self-assembly of polystyrene-polydimethylsiloxane block copolymer

Transition-Metal Doped Ceria Microspheres with Nanoporous Structures for CO Oxidation

Growing Embossed Nanostructures of Polymer Brushes on Wet-Etched Silicon Templated via Block Copolymers

Surface hydrogenation regulated wrinkling and torque capability of hydrogenated graphene annulus under circular shearing

Highly Stretchable Electrodes on Wrinkled Polydimethylsiloxane Substrates

Sub-100 nm wrinkling of polydimethylsiloxane by double frontal oxidation

Giant and switchable surface activity of liquid metal via surface oxidation

Surface chemical structures of CoO$_{ x }$/TiO$_{2}$ catalysts for continuous wet trichloroethylene oxidation

Surface Wrinkling on Polydimethylsiloxane Microspheres via Wet Surface Chemical Oxidation

Similar Documents

Surface Wrinkling on Polydimethylsiloxane Microspheres via Wet Surface Chemical Oxidation

Effect of angstrom-scale surface roughness on the self-assembly of polystyrene-polydimethylsiloxane block copolymer

Transition-Metal Doped Ceria Microspheres with Nanoporous Structures for CO Oxidation

Growing Embossed Nanostructures of Polymer Brushes on Wet-Etched Silicon Templated via Block Copolymers

Surface hydrogenation regulated wrinkling and torque capability of hydrogenated graphene annulus under circular shearing

Highly Stretchable Electrodes on Wrinkled Polydimethylsiloxane Substrates

Sub-100 nm wrinkling of polydimethylsiloxane by double frontal oxidation

Giant and switchable surface activity of liquid metal via surface oxidation

Surface chemical structures of CoO$_{ x }$/TiO$_{2}$ catalysts for continuous wet trichloroethylene oxidation

Surface Wrinkling on Polydimethylsiloxane Microspheres via Wet Surface Chemical Oxidation