Results 261 to 270 of about 30,655 (279)

Polycarbonate Masters for Soft Lithography

2022
Fabrication of microfluidic devices by soft lithography is by far the most popular approach due to simplicity and low cost. The approach relies on casting of elastomers, such as polydimethylsiloxane (PDMS), on masters fabricated from photoresists on silicon substrates. These masters, however, can be expensive, complex to fabricate, and fragile. Here an
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Silane Nanopatterns via Gas‐Phase Soft Lithography

Small, 2008
A new soft-lithography approach for direct silane nanopatterning, known as gas-transfer lithography, is presented and tested. Chemically active two-dimensional replicas of carbon nanotubes are attained (see image). Amplitude modulation atomic force microscopy reveals silane patterns with distinctive dimensions and chemical composition.
De La Rica, Roberto, Baldi, Antonio, Mendoza, Ernest, San Paulo, Alvaro, Llobera, Andreu, Fernandez-Sanchez, Cesar   +5 more
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Programmable Soft Lithography: Solvent-Assisted Nanoscale Embossing

Nano Letters, 2011
This paper reports an all-moldable nanofabrication platform that can generate, from a single master, large-area nanoscale patterns with programmable densities, fill factors, and lattice symmetries. Solvent-assisted nanoscale embossing (SANE) could increase the spacing of patterns up to 100% as well as decrease them down to 50% in a single step by ...
Min Hyung, Lee, Mark D, Huntington, Wei, Zhou, Jiun-Chan, Yang, Teri W, Odom   +4 more
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Patterning Polymerized Lipid Vesicles with Soft Lithography

Langmuir, 2005
The applications of soft lithography in patterning polymerized lipid vesicles of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphocholine on glass substrates are reported. We demonstrate that the polymerized vesicles can be used as a high molecular weight ink to be transferred from a PDMS stamp onto a glass substrate to form two-dimensional stripes ...
Nidhi, Mahajan, Ruibo, Lu, Shin-Tson, Wu, Jiyu, Fang   +3 more
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Patterning proteins and cells using soft lithography

Biomaterials, 1999
This review describes the pattering of proteins and cells using a non-photolithographic microfabrication technology, which we call 'soft lithography' because it consists of a set of related techniques, each of which uses stamps or channels fabricated in an elastomeric ('soft') material for pattern transfer.
R S, Kane, S, Takayama, E, Ostuni, D E, Ingber, G M, Whitesides   +4 more
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Soft lithography: Harnessing the unstable

Nature Materials, 2003
A contact-free method for generating precise patterns in polymers is an exciting advance in soft lithography. By exploiting the interactions of two polymers with an electric field, the scale of the patterns can be reduced still further.
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Swelling‐Driven Ultrafast Soft Lithography

Small Methods
Abstract Soft lithography using polymeric molds is a cost‐effective and scalable technique but is often limited by long processing times, high temperatures, and production costs. Here, stretchable polydimethylsiloxane (PDMS) molds replicated from compact discs (C‐PDMS molds) are introduced for ultrafast, high‐resolution patterning on ...
Yukyeong Choi, Hee Jung Park, Byoung Hoon Lee   +2 more
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Polymer Microparticles Fabricated by Soft Lithography

Chemistry of Materials, 2005
Two techniques using soft lithography and lift-off techniques for the fabrication of polymer microparticles are demonstrated. The techniques involve using microstamping of polymer structures onto a sacrificial layer for release into a water solution. The particles produced using these techniques maintain the micro-geometry of the mold and stamp.
Jingjiao Guan, Aravind Chakrapani, Derek J. Hansford   +2 more
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Soft lithography for oligonucleotide arrays fabrication

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
A method for fabricating high-density oligonucleotide arrays directed by a set of molecular stamps is reported in this paper. In this method, based on the standard phosphoramidites chemistry protocol, the coupling was conducted under soft lithography.
P.F. Xiao, N.Y. He, Q.G. He, Z.C. Liu, Z.H. Lu   +4 more
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Micromolding—A Soft Lithography Technique

2016
Photolithography is a well-established technique for patterning electronic circuits, biological assay devices, and plasmonic circuits and is currently used in the semiconductor industry for making integrated circuits [1]. The method has served for decades in patterning a variety of materials over large areas but is not compatible for patterning on ...
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