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Volumn 1, Issue 7, 2009, Pages 1387-1395

Microfluidic patterning of miniaturized DNA arrays on plastic substrates

Author keywords

DNA arrays; microfluidic patterning; plastic substrates

Indexed keywords

CARBODIIMIDE HYDROCHLORIDES; COVALENT ATTACHMENT; DNA ARRAY; DNA MOLECULES; DNA PROBE; FLUORESCENCE INTENSITIES; FLUORESCENT DYES; HIGH QUALITY; HOT-EMBOSSING LITHOGRAPHY; HUMID ENVIRONMENT; IMMOBILIZATION PROCESS; MICRO-CAPILLARIES; MICROFLUIDIC PATTERNING; MICROSPOTTING; MODIFIED OLIGONUCLEOTIDES; N-HYDROXYSUCCINIMIDE; PHOSPHATE-BUFFERED SALINES; PLASTIC SUBSTRATES; PLASTIC SURFACES; SELECTIVE ACTIVATION; SUPPLY CHANNELS; TARGET MOLECULE; THERMOPLASTIC MATERIALS;

EID: 77951641458     PISSN: 19448244     EISSN: 19448252     Source Type: Journal    
DOI: 10.1021/am900285g     Document Type: Article
Times cited : (46)

References (82)
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    • EDC/NHS coupling chemistry is frequently used for the immobilization of biochemical species containing amino functionalities. EDC reacts with carboxylic acid groups at the surface to form a reactive O -acylisourea intermediate, which is subsequently converted into an NHS ester species. The ester functionality provides higher stability than the reactive intermediate, allowing two-step coupling procedures with amine-modified DNA or proteins to be performed in a controlled fashion and without affecting carboxylic acid groups that may be present in these molecules. For example, see
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    • rec of 65 ± 2° and 21 ± 4°, respectively, which were sufficient to promote autonomous movement of aqueous solution in the channels. The time required for filling the entire μCS is dependent on l and was typically on the order of 5-15 min. Oxidized surfaces of CL30 were sufficiently stable in air to ensure convenient handling, yet they largely recovered their hydrophobic character over the course of several days when stored at ambient conditions.
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    • AFM measurements of activated plastic surfaces revealed root-mean-square roughness values that were generally in the lower nanometer range for both PMMA and Zeonor substrates. The μCS conformed spontaneously to either of these surfaces without the need for applying any external pressure. Forces of adhesion between CL30 and Zeonor were generally superior to those of CL30 and PMMA (data not shown), indicating differences in the polymer-polymer interactions at the interface.
    • AFM measurements of activated plastic surfaces revealed root-mean-square roughness values that were generally in the lower nanometer range for both PMMA and Zeonor substrates. The μCS conformed spontaneously to either of these surfaces without the need for applying any external pressure. Forces of adhesion between CL30 and Zeonor were generally superior to those of CL30 and PMMA (data not shown), indicating differences in the polymer-polymer interactions at the interface.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.