Abstract
Smooth inner pores of carbon nanotubes (CNT) provide a fascinating model for studying biological transport. We used an atomic force microscope to pull a single-stranded DNA oligomer from a carbon nanotube pore. DNA extraction from CNT pores occurs at a nearly constant force, which is drastically different from the elastic profile commonly observed during polymer stretching with atomic force microscopy. We show that a combination of the frictionless nanotube pore walls and an unfavorable DNA solvation energy produces this constant force profiles.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1171-1176 |
| Number of pages | 6 |
| Journal | Nano Letters |
| Volume | 11 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 9 2011 |
| Externally published | Yes |
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Keywords
- carbon nanotubes
- CNT membrane
- DNA
- molecular friction
- nanofluidics
- Single molecule force spectroscopy
ASJC Scopus subject areas
- Condensed Matter Physics
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Mechanical Engineering
Cite this
Frictionless sliding of single-stranded DNA in a carbon nanotube pore observed by single molecule force spectroscopy. / Lulevich, Valentin; Kim, Sangil; Grigoropoulos, Costas P.; Noy, Aleksandr.
In: Nano Letters, Vol. 11, No. 3, 09.03.2011, p. 1171-1176.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Frictionless sliding of single-stranded DNA in a carbon nanotube pore observed by single molecule force spectroscopy
AU - Lulevich, Valentin
AU - Kim, Sangil
AU - Grigoropoulos, Costas P.
AU - Noy, Aleksandr
PY - 2011/3/9
Y1 - 2011/3/9
N2 - Smooth inner pores of carbon nanotubes (CNT) provide a fascinating model for studying biological transport. We used an atomic force microscope to pull a single-stranded DNA oligomer from a carbon nanotube pore. DNA extraction from CNT pores occurs at a nearly constant force, which is drastically different from the elastic profile commonly observed during polymer stretching with atomic force microscopy. We show that a combination of the frictionless nanotube pore walls and an unfavorable DNA solvation energy produces this constant force profiles.
AB - Smooth inner pores of carbon nanotubes (CNT) provide a fascinating model for studying biological transport. We used an atomic force microscope to pull a single-stranded DNA oligomer from a carbon nanotube pore. DNA extraction from CNT pores occurs at a nearly constant force, which is drastically different from the elastic profile commonly observed during polymer stretching with atomic force microscopy. We show that a combination of the frictionless nanotube pore walls and an unfavorable DNA solvation energy produces this constant force profiles.
KW - carbon nanotubes
KW - CNT membrane
KW - DNA
KW - molecular friction
KW - nanofluidics
KW - Single molecule force spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=79952606033&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952606033&partnerID=8YFLogxK
U2 - 10.1021/nl104116s
DO - 10.1021/nl104116s
M3 - Article
C2 - 21275410
AN - SCOPUS:79952606033
VL - 11
SP - 1171
EP - 1176
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
IS - 3
ER -