کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9816867 1518375 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Building a multi-walled carbon nanotube-based mass sensor with the atomic force microscope
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Building a multi-walled carbon nanotube-based mass sensor with the atomic force microscope
چکیده انگلیسی
We report an approach for building a mass sensor based on multi-walled carbon nanotubes (MWCNT). We propose a method with a great potential for the positioning of MWCNTs based on self-assembly onto patterned hydrophilic areas. For the experiments ultra flat mica substrates covered with gold are used. The gold substrate is first covered with hydrophobic thiol molecules: octadecanthiol. The octadecanthiol molecules are then selectively removed from small areas by nanoshaving the gold substrate with the tip of an atomic force microscope (AFM) operating in contact mode. Hydrophilic thiols (2-mercaptoethanesulfonic acid) are then self-assembled onto the cleaned area. Next, the substrate, comprised of hydrophobic and hydrophilic areas, is immersed in MWCNTsdispersed in N, N-dimethylformamide. The MWCNTs are self-assembled on the hydrophilic areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 105, Issues 1–4, November 2005, Pages 233-237
نویسندگان
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