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Findings from G.S. Watson and Co-Researchers in the Area of Advanced Material Research Reported (Microwell Depth Control on a Polydimethylsiloxane...

August 5, 2014



Findings from G.S. Watson and Co-Researchers in the Area of Advanced Material Research Reported (Microwell Depth Control on a Polydimethylsiloxane Polymer Using a Simple Colloidal Self Assembly Process)

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Advanced Material Research have been published. According to news reporting from Newstead, Australia, by VerticalNews journalists, research stated, "The development of soft-lithographic patterning techniques has attracted considerable interest in recent times covering a diverse range of potential applications including microfluidic devices, lab-on chip technologies, micro patterning of biomolecules and micro-optical systems. One of the strategies for producing patterned micro and nano structures is to self-assemble an array of monodispersed spheres."

The news correspondents obtained a quote from the research, "In this study, patterned poly dimethylsiloxane (PDMS) surfaces with hexagonal close-packed microwells were fabricated by the self-assembly of silicon spheres (5 mu m and 800 nm) onto the polymer surface. The weight of spheres, in combination with uncompleted curing of the polymer, allows surface deformation. An average depth for microwells after 48 hours curing and a further 48 hours of bead resting time was similar to 400 nm for 5 mu m beads and similar to 100 nm for 800 nm beads. An increased curing time pre bead placement on the polymer surface was found to show a decrease in the depth of the microwells (for 5 mu m spheres, a 400 to 45 nm well depth decrease, at 2 to 9 days curing, respectively). Young's Modulus values measured on the polymer over this period increased from ca. 650 kPa to ca. 750 kPa."

According to the news reporters, the research concluded: "Microwell depth was found to increase from 400 to over 500 nm for resting times of 3 and 15 days (an increase of ca. 28% for this period)."

For more information on this research see: Microwell Depth Control on a Polydimethylsiloxane Polymer Using a Simple Colloidal Self Assembly Process. Science of Advanced Materials, 2014;6(7):1351-1355. Science of Advanced Materials can be contacted at: Amer Scientific Publishers, 26650 The Old Rd, Ste 208, Valencia, CA 91381-0751, USA. (American Scientific Publishers - www.aspbs.com/)

Our news journalists report that additional information may be obtained by contacting G.S. Watson, GeoConsult Pty Ltd, Newstead, Qld 4006, Australia. Additional authors for this research include A.J.A. Watt and J.A. Watson.

Keywords for this news article include: Newstead, Australia and New Zealand, Advanced Material Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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