High Electronic Conductance through Double-Helix DNA Molecules with Fullerene Anchoring Groups

Jiménez-Monroy, Kathia L.; Renaud, Nicolas; Drijkoningen, Jeroen; Chen, David; Schouteden, Koen; Haesendonck, C. Van; Guedens, Wanda; Manca, Jean; Siebbeles, Laurens D. A.; Grozema, Ferdinand C.; Wagner, Patrick

doi:10.1021/acs.jpca.7b00348

Cited by 33 publications

(29 citation statements)

References 59 publications

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“…Another player missing from theory is the very long-ranged forces of attraction between, and peculiar to, parallel conducting polymers (Richmond et al ., 1972; Davies et al ., 1973). These forces exist equally for charged (linear) polyelectrolytes of the eGC and DNA (Dekker, 2001; Jimenez-Monroy et al ., 2017). They are the analogs of van der Waals forces between atoms or colloidal particles.…”

Section: Elements Of a New Model Of The Endothelial Surface Layer (Esl)mentioning

confidence: 99%

Structure and function of the endothelial surface layer: unraveling the nanoarchitecture of biological surfaces

Reines

Ninham

2019

Quart. Rev. Biophys.

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Among the unsolved mysteries of modern biology is the nature of a lining of blood vessels called the ‘endothelial surface layer’ or ESL. In venous micro-vessels, it is half a micron in thickness. The ESL is 10 times thicker than the endothelial glycocalyx (eGC) at its base, has been presumed to be comprised mainly of water, yet is rigid enough to exclude red blood cells. How is this possible? Developments in physical chemistry suggest that the venous ESL is actually comprised of nanobubbles of CO2, generated from tissue metabolism, in a foam nucleated in the eGC. For arteries, the ESL is dominated by nanobubbles of O2 and N2 from inspired air. The bubbles of the foam are separated and stabilized by thin layers of serum electrolyte and proteins, and a palisade of charged polymer strands of the eGC. The ESL seems to be a respiratory organ contiguous with the flowing blood, an extension of, and a ‘lung’ in miniature. This interpretation may have far-reaching consequences for physiology.

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Section: Elements Of a New Model Of The Endothelial Surface Layer (Esl)mentioning

confidence: 99%

Structure and function of the endothelial surface layer: unraveling the nanoarchitecture of biological surfaces

Reines

Ninham

2019

Quart. Rev. Biophys.

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“…By anchoring fullerene groups to DNA molecules (DNA-C61) and subsequently onto a gold substrate, the total current intensity was significantly improved owing to the strong electronic couplings between the fullerene molecules and the substrate. 63 After applying a ±1 V bias voltage, the slopes of the I−V curves showed a clear steepening from the middle of the molecule to the fullerene end. The theoretical model suggests an incoherent charge hopping mechanism between neighboring active sites delocalized over four base pairs could be responsible for the current flow through DNA-fullerene molecules.…”

Section: Characterization Of Dna Complex-based Nanoelectronicsmentioning

confidence: 94%

“…Maintaining structural integrity of dsDNA during measurement is an important issue in charge transport measurements, because molecule conformation changes lead to large variations in the transport. By anchoring fullerene groups to DNA molecules (DNA-C61) and subsequently onto a gold substrate, the total current intensity was significantly improved owing to the strong electronic couplings between the fullerene molecules and the substrate . After applying a ±1 V bias voltage, the slopes of the I – V curves showed a clear steepening from the middle of the molecule to the fullerene end.…”

Section: Characterization Of Dna Complex-based Nanoelectronicsmentioning

confidence: 99%

DNA-Based Fabrication for Nanoelectronics

Dai

Aldalbahi

et al. 2020

Nano Lett.

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The bottom-up DNA-templated nanoelectronics exploits the unparalleled self-assembly properties of DNA molecules and their amenability with various types of nanomaterials. In principle, nanoelectronic devices can be bottom-up assembled with near-atomic precision, which compares favorably with well-established top-down fabrication process with nanometer precision. Over the past decade, intensive effort has been made to develop DNA-based nanoassemblies including DNA-metal, DNA-polymer, and DNA-carbon nanotube complexes. This review introduces the history of DNA-based fabrication for nanoelectronics briefly and summarizes the state-of-art advances of DNA-based nanoelectronics. In particular, the most widely applied characterization techniques to explore their unique electronic properties at the nanoscale are described and discussed, including scanning tunneling microscopy, conductive atomic force microscopy, and Kelvin probe force microscopy. We also provide a perspective on potential applications of DNA-based nanoelectronics.

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“…We particularly mention that in many instances, experiments of charge transfer in DNA are well described by the Pauli rate equations, see e.g. [17][18][19][20][21][22] .…”

Section: Model and Measuresmentioning

confidence: 99%

Mean First-Passage Time and Steady-State Transfer Rate in Classical Chains

Kalantar

Segal

2018

J. Phys. Chem. C

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Understanding excitation and charge transfer in disordered media is a significant challenge in chemistry, biophysics and material science. We study two experimentally-relevant measures for carriers transfer in finite-size chains, the trapping mean first-passage time (MFPT) and the steady state transfer time (SSTT). We discuss the relationship between these measures, and derive analytic formulae for one-dimensional chains. We exemplify the behavior of these timescales in different motifs: donor-bridge-acceptor systems, biased chains, and alternating and stacked co-polymers. We find that the MFPT and the SSTT may administer different, complementary information on the system, jointly reporting on molecular length and energetics. Under constraints such as fixed donoracceptor energy bias, we show that the MFPT and the SSTT are optimized (minimized) under fundamentally different internal potential profiles. This study brings insights on the behavior of the MFPT and the SSTT, and suggests that it is beneficial to perform both transient and steady state measurements on a conducing network so as to gather a more complete picture of its properties. arXiv:1809.06281v1 [cond-mat.mes-hall] 17 Sep 2018 = e −(Ei+1−Ei)/T ; we set the Boltzmann constant as k B ≡ 1. Nevertheless, our general results in this Section do not rely on this particular choice for the rates.

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High Electronic Conductance through Double-Helix DNA Molecules with Fullerene Anchoring Groups

Cited by 33 publications

References 59 publications

Structure and function of the endothelial surface layer: unraveling the nanoarchitecture of biological surfaces

Structure and function of the endothelial surface layer: unraveling the nanoarchitecture of biological surfaces

DNA-Based Fabrication for Nanoelectronics

Mean First-Passage Time and Steady-State Transfer Rate in Classical Chains

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