کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
610576 1454611 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deposition and meniscus alignment of DNA–CNT on a substrate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Deposition and meniscus alignment of DNA–CNT on a substrate
چکیده انگلیسی

We present a study of deposition and meniscus alignment of DNA-single walled carbon nanotube hybrids (DNA–CNT) on a silicon wafer coated with an alkyl-silane monolayer. We show that this process occurs in two stages: adsorption of DNA–CNT onto the hydrophobic surface and subsequent alignment by a passing meniscus. We study how pH, ionic strength, and time affect the density of nanotubes deposited on the surface. Experimental results are interpreted using models for the kinetics of deposition and for forces that affect alignment by the meniscus. We show that this method can be used to produce uniform global alignment of controlled density as well as controlled patterns, results that may be useful for applications such as CNT-based device construction.

Global alignment of DNA–CNT by a moving meniscus.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 330, Issue 2, 15 February 2009, Pages 255–265
نویسندگان
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