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Title: Patterned functional arrays by selective de-wetting

Abstract

Using a micro-Contact Printing ({mu}-CP) technique, substrates are prepared with patterns of hydrophilic, hydroxyl-terminated SAMS and hydrophobic methyl-terminated SAMS. Beginning with a homogeneous solution of silica, surfactant, ethanol, water, and functional silane, preferential ethanol evaporation during dip-coating, causes water enrichment and selective de-wetting of the hydrophobic SAMS. Correspondingly, film deposition occurs exclusively on the patterned hydrophilic SAMS. In addition, by co-condensation of tetrafunctional silanes (Si(OR){sub 4}) with tri-functional organosilanes ((RO){sub 3}Si(CH{sub 2}){sub 3}NH{sub 2}), the authors have selectively derived the silica framework with functional amine NH{sub 2} groups. A pH sensitive, micro-fluidic system was formed by further conjugation reactions with pH sensitive dye molecules.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
756106
Report Number(s):
SAND2000-1190C
TRN: AH200021%%412
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Materials Research Society Spring Meeting, San Francisco, CA (US), 04/24/2000--04/28/2000; Other Information: PBD: 11 May 2000
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SCREEN PRINTING; SUBSTRATES; SILICA; MINIATURIZATION; SURFACTANTS; DIP COATING; SILANES; PH VALUE; EVAPORATION

Citation Formats

FAN,HONGYOU, DOSHI,DHAVAL, LU,YUNFENG, and BRINKER,C. JEFFREY. Patterned functional arrays by selective de-wetting. United States: N. p., 2000. Web.
FAN,HONGYOU, DOSHI,DHAVAL, LU,YUNFENG, & BRINKER,C. JEFFREY. Patterned functional arrays by selective de-wetting. United States.
FAN,HONGYOU, DOSHI,DHAVAL, LU,YUNFENG, and BRINKER,C. JEFFREY. Thu . "Patterned functional arrays by selective de-wetting". United States. https://www.osti.gov/servlets/purl/756106.
@article{osti_756106,
title = {Patterned functional arrays by selective de-wetting},
author = {FAN,HONGYOU and DOSHI,DHAVAL and LU,YUNFENG and BRINKER,C. JEFFREY},
abstractNote = {Using a micro-Contact Printing ({mu}-CP) technique, substrates are prepared with patterns of hydrophilic, hydroxyl-terminated SAMS and hydrophobic methyl-terminated SAMS. Beginning with a homogeneous solution of silica, surfactant, ethanol, water, and functional silane, preferential ethanol evaporation during dip-coating, causes water enrichment and selective de-wetting of the hydrophobic SAMS. Correspondingly, film deposition occurs exclusively on the patterned hydrophilic SAMS. In addition, by co-condensation of tetrafunctional silanes (Si(OR){sub 4}) with tri-functional organosilanes ((RO){sub 3}Si(CH{sub 2}){sub 3}NH{sub 2}), the authors have selectively derived the silica framework with functional amine NH{sub 2} groups. A pH sensitive, micro-fluidic system was formed by further conjugation reactions with pH sensitive dye molecules.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Conference:
Other availability
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