Bionanofabrication of Metallic and Semiconductor Nanoparticle Arrays Using S-Layer Protein Lattices with Different Lateral Spacings and Geometries

Mark, Sonny S.; Bergkvist, Magnus; Yang, Xin; Teixeira, Leonardo Maestri; Bhatnagar, Parijat; Angert, Esther R.; Batt, Carl A.

doi:10.1021/la053115v

Cited by 89 publications

(94 citation statements)

References 56 publications

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“…This behavior originates in the even-odd alternancy predicted by Eqs. (9) and (10). The dependence on α is studied in Fig.2(b).…”

Section: Middleton and Wingreenmentioning

confidence: 99%

“…We also calculate the offset voltage and relate it to the potential drop through the array. Nanoparticle arrays made of metallic 1,2,3,4,5,6,7,8,9,10 , semiconducting 10,11,12,13,14,15,16 , magnetic 17,18,19 or combined 20,21,22 materials and with radii of the order of 2-7 nm can be now synthesized. The transport properties of these systems are influenced by the ratio between the energy level spacing, the charging energy of the nanoparticles, and the temperature.…”

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confidence: 99%

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Electronic correlations and disorder in transport through one-dimensional nanoparticle arrays

et al. 2008

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We analyze and clarify the transport properties of a one-dimensional metallic nanoparticle array with interaction between charges restricted to charges placed in the same conductor. We study the threshold voltage, the I-V curves and the potential drop through the array and their dependence on the array parameters including the effect of charge and resistance disorder. We show that very close to threshold the current depends linearly on voltage with a slope independent on the array size. At intermediate bias voltages, for which a Coulomb staircase is observed we find that the average potential drop through the array oscillates with position. At higher voltages I-V curves are linear but have a finite offset voltage. We show that the slope is given by the inverse of the resistances added in series and estimate the voltage at which this linear regime is reached. We also calculate the offset voltage and relate it to the potential drop through the array. Nanoparticle arrays made of metallic 1,2,3,4,5,6,7,8,9,10 , semiconducting 10,11,12,13,14,15,16 , magnetic 17,18,19 or combined 20,21,22 materials and with radii of the order of 2-7 nm can be now synthesized. The transport properties of these systems are influenced by the ratio between the energy level spacing, the charging energy of the nanoparticles, and the temperature. The first two quantities depend on the material and the size of the nanoparticle. In the case of metallic nanoparticles, at not too low temperatures, the level spacing is much smaller than the temperature and does not play any role in the transport 23 . On the contrary, the charging energy is of the order of 0.1 eV. Strong interactions between the electric charges and the possibility of tuning interparticle coupling make nanoparticles arrays an ideal system to study correlated motion 24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 .Experimentally, these arrays are strongly influenced by disorder 43,44,45 . Local charging disorder is present in all arrays due to randomly dispersed charged impurities lodged in the substrate or in the materials that separate and surround the nanoparticles. Because of the exponential dependence of the tunneling resistance, even a small dispersion in the distance between nanoparticles results in large variations in the tunneling resistances of the junctions. Differences in the island sizes and voids in the lattice can be other sources of disorder 3 .Due to the combination of disorder and charging effects the current in voltage biased arrays is blocked up to a threshold voltage 31,35,43,46,47,48,49,50,51,52 V T . For bias voltages larger than V T current is in general non-linear in voltage with a power-law dependence 43,49,53 close to threshold, a linear dependence recovered at high-voltages and frequently a step-like behavior, called a Coulomb staircase, at intermediate voltages. Most studies have focused on the statistical analysis of the threshold voltage and on the power-law behavior of the current close to this threshold. This exponent depends on the dimensi...

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“…This behavior originates in the even-odd alternancy predicted by Eqs. (9) and (10). The dependence on α is studied in Fig.2(b).…”

Section: Middleton and Wingreenmentioning

confidence: 99%

mentioning

confidence: 99%

Electronic correlations and disorder in transport through one-dimensional nanoparticle arrays

et al. 2008

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“…A wide range of biologically derived substrates have proven useful, including RNA, [312][313][314] viruses, 277,278,[315][316][317][318][319][320] and proteins/ peptides. [321][322][323][324][325][326][327][328][329] Proper substrate selection affords an additional opportunity to control the morphology of the assembled array, as the final structure typically mimics that of the substrate; that is, planar substrates may support twodimensional arrays, whereas substrates having a relatively linear structure are best suited to one-dimensional structures. Advanced surface treatments including lithographic patterning [330][331][332][333][334] and patterning/stamping techniques [335][336][337][338][339][340] can be used to generate patterned arrays with specifically constrained dimensions, thus improving the versatility of planar substrates, although some techniques (electron and ion beam lithography) lack the efficient, parallel processing methods offered by simple self-assembly on molecular scaffolds.…”

Section: Directed Assembly On Surfaces and Scaffoldsmentioning

confidence: 99%

Toward Greener Nanosynthesis

Dahl¹,

Maddux²,

Hutchison³

2007

ChemInform

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“…21 Previously, the S-layer lattices from D. radiodurans have been successfully used as a biotemplate for guided self-assembly of commercially procured hexagonal and honeycomb-ordered arrays of the dendrimer-encapsulated platinum nanoparticles, citrate-capped gold nanoparticles, and various species of CdSe/ ZnS core-shell quantum dots. 22 The present study involves the synthesis and extracellular accumulation of AgNPs using the bacterium D. radiodurans. UV/vis spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDX) were used to characterize these AgNPs.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and extracellular accumulation of silver nanoparticles by employing radiation-resistant Deinococcus radiodurans, their characterization, and determination of bioactivity

Kulkarni¹,

Shaiwale²,

Deobagkar³

et al. 2015

IJN

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There has been rapid progress in exploring microorganisms for green synthesis of nanoparticles since microbes show extraordinary diversity in terms of species richness and niche localization. Microorganisms are easy to culture using relatively inexpensive and simple nutrients under varied conditions of temperature, pressure, pH, etc. In this work, Deinococcus radiodurans that possesses the ability to withstand extremely high radiation and desiccation stress has been employed for the synthesis of silver nanoparticles (AgNPs). D. radiodurans was able to accumulate AgNPs in medium under various conditions, and process optimization was carried out with respect to time, temperature, pH, and concentration of silver salt. AgNPs were characterized using UV/vis spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. The microbially synthesized AgNPs exhibited good antimicrobial activity against both Gram-negative and Gram-positive organisms and anti-biofouling activity. Their ability to inhibit growth and proliferation of cancer cell line was also examined, and it could be seen that AgNPs synthesized using D. radiodurans exhibited excellent anticancer activity.

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Bionanofabrication of Metallic and Semiconductor Nanoparticle Arrays Using S-Layer Protein Lattices with Different Lateral Spacings and Geometries

Cited by 89 publications

References 56 publications

Electronic correlations and disorder in transport through one-dimensional nanoparticle arrays

Electronic correlations and disorder in transport through one-dimensional nanoparticle arrays

Toward Greener Nanosynthesis

Synthesis and extracellular accumulation of silver nanoparticles by employing radiation-resistant Deinococcus radiodurans, their characterization, and determination of bioactivity

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