Experimental and simulation studies of unusual current blockade induced by translocation of small oxidized PEG through a single nanopore

Literature Information

Publication Date 2014-07-08
DOI 10.1039/C4CP01954G
Impact Factor 3.676
Authors

S. Cabello-Aguilar, A. Abou Chaaya, F. Picaud, M. Bechelany, C. Pochat-Bohatier, S. Yesylevskyy, S. Kraszewski, M. C. Bechelany, F. Rossignol, E. Balanzat, J. M. Janot, P. Miele, P. Dejardin, S. Balme


View Original

Abstract

Detection of a single macromolecule based on the use of artificial nanopores is an attractive and promising field of research. In this work, we report a device based on a 5 nm single nanopore with a high length/diameter ratio, tailored by the track etching and atomic layer deposition techniques. The translocation of neutral polyethylene glycol (PEG) and charged polyethylene glycol-carboxylate (PEG-carboxylate) molecules of low molar masses (200 and 600 g mol−1) through this nanodevice was studied. It was shown that charged PEG-carboxylate molecules, which permeate through the pore, promote an unusual blockade of ionic current whereas the neutral PEG molecules do not show such behaviour. The molecular dynamics simulation shows that both neutral and charged PEGs permeate through the nanopore close to its inner surface. The main difference between the two macromolecules is the existence of a structured shell of cations around the charged PEG, which is likely to cause the observed unusual current blockade.

Related Literature

Front cover

Cover

DOI: 10.1039/C7CP90016C

Covalent functionalization of polyhedral graphitic particles synthesized by arc discharge from graphite

E. Voss, B. Vigolo, G. Medjahdi, C. Hérold, J.-F. Marêché, J. Ghanbaja, F. Le Normand, V. Mamane

2017-01-26 Paper

DOI: 10.1039/C6CP08568G

Modeling the abnormally slow infiltration rate in mesoporous films

Claudio L. A. Berli, Magalí Mercuri, Martín G. Bellino

2016-12-12 Communication

DOI: 10.1039/C6CP06602J

Photoinduced electron transfer in layer-by-layer thin solid films containing cobalt oxide nanosheets, porphyrin, and methyl viologen

R. Sasai, Y. Kato, W. Soontornchaiyakul, H. Usami, A. Masumori, W. Norimatsu

2017-01-17 Paper

DOI: 10.1039/C6CP07250J

Free-energy patterns in inclusion complexes: the relevance of non-included moieties in the stability constants

Tânia F. G. G. Cova, Sandra C. C. Nunes, Alberto A. C. C. Pais

2017-01-10 Paper

DOI: 10.1039/C6CP08081B

Investigations on Zr incorporation into Li3V2(PO4)3/C cathode materials for lithium ion batteries

Hua-Bin Sun, Ying-Xian Zhou, Lu-Lu Zhang, Xue-Lin Yang, Xing-Zhong Cao, Hanu Arave, Hui Fang, Gan Liang

2017-01-13 Paper

DOI: 10.1039/C6CP07760A

The water association band as a marker of hydrogen bonds in trehalose amorphous matrices

Sergio Giuffrida, Lorenzo Cordone

2017-01-04 Paper

DOI: 10.1039/C6CP06848K

You might also like

Compound Q&A

What are the main uses of (5-Sulfamoyl-3-pyridinyl)boronic acid (CAS: 951233-61-7)?

(5-Sulfamoyl-3-pyridinyl)boronic acid is primarily used in chemical synthesis, p...

951233-61-7(5-Sulfamoyl-3-pyrid...
Compound Q&A

How is Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate (CAS: 1942858-50-5) typically synthesized?

Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate is typically synthesized via est...

1942858-50-5Benzyl 2-methyl-2-(m...
Compound Q&A

What precautions should be taken when handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0)?

When handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0), it is important to use p...

209353-22-08-Fluoroquinolin-6-o...
Compound Q&A

What are the physical and chemical properties of 1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2)?

1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2) is a crystalline c...

129316-09-21,3-Dibromo-5-(2-met...
Compound Q&A

What industries use Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxylate (CAS: 174726-87-5)?

Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carbox...

174726-87-5Ethyl 7-chloro-4-oxo...
Compound Q&A

What precautions should be taken when handling Delta-7-Avenasterol (CAS: 23290-26-8)?

When handling Delta-7-Avenasterol (CAS: 23290-26-8), it is important to wear app...

23290-26-8Delta-7-Avenasterol
872992-20-6N-({(5R)-3-[3-Fluoro...
Compound Q&A

What precautions should be taken when handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylate (CAS: 79099-00-6)?

When handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylat...

79099-00-62-Methyl-2-propanyl ...
Compound Q&A

What is N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7)?

N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7) is a organic compou...

65542-24-7N-Methyl-4-chloroben...
Compound Q&A

Is [2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) safe?

[2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) is generally considered safe...

27306-90-7[2-(Dodecyloxy)ethox...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.