Protein-Based Disk Recording at Areal Densities beyond 10 Terabits/in.<sup>2</sup>

Khizroev, Sakhrat; Ikkawi, R.; Amos, Nissim; Chomko, R.; Renugopalakrishnan, V.; Haddon, Robert C.; Litvinov, Dmitri

doi:10.1557/mrs2008.182

Cited by 12 publications

(8 citation statements)

References 48 publications

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“…In a way, this relatively simple idea consists in synthesizing by chemical routes, systems similar to metal or oxide multilayer based nanostructures that were produced otherwise by using physical techniques such as sputtering or pulse laser deposition, for instance. [128][129][130][131][132][133]_ENREF_115…”

Section: Magnetic Hybrid Materials Comprising Photo-active Organic Momentioning

confidence: 99%

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Rabu¹,

Delahaye²,

Rogez³

2015

Nanotechnology Reviews

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The hybridization of simple transition metal hydroxides provides prototypical examples of layered magnetic and bifunctional hybrid materials in which the influence of the hybrid interface on the behavior of multiproperty systems can be evaluated. AbstractThis article is a critical review on layered hybrid organic-inorganic functional structures. We specially discuss series of results concerning the design of magnetic and multiproperty systems derived from hybridization of layered transition metal hydroxides. Series of hybrid materials showing original magnetic properties are reviewed, which were prepared by functionalization of layered simple hydroxides (LSH) of general formula M 2 (OH) 3 A (M = Co, Cu, Ni, Zn, ... and A = NO 3 -, OAc -, alkylcarboxylates, peptides, metal complexes...). To make the point on this vast family of hybrid compounds, we present first the work investigating the mechanism of interaction and the structural factors influencing the magnetic properties of hybrid materials based on LSH. Then we detail how even more complex anions can be immobilized and grafted into the interlamellar space giving rise to new functionalities. These systems are very good models for understanding the correlations between the structure of hybrid systems and the physical properties brought by the inorganic host and by the molecular moieties grafted onto the inorganic metal network. The interface between the organic and inorganic components, i.e. chemical bonding, charge density, or local pressure, is essential for the control of the properties of multifunctional hybrid systems. Some conclusions are drawn on the future of this approach, useful for developing new two-dimensional functional systems.

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Section: Magnetic Hybrid Materials Comprising Photo-active Organic Momentioning

confidence: 99%

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Rabu¹,

Delahaye²,

Rogez³

2015

Nanotechnology Reviews

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“…The photocycle of BR has intermediates (states) with individual absorption spectra which can be optically identified. 16 The intermediates utilized for short-term memories are the ground state (BR) and the M state complex. The lifetime of the M state differs from about 1 sec (for the wild-type bR) to a few minutes (for certain mutants of BR).…”

Section: Memoriesmentioning

confidence: 99%

“…17 For long-term memories, the ground state (BR) and the intermediates of branched photocycle, P or Q state should be consider. 18 16 The intermediates are shown in a graph form in Figure 3.…”

Section: Memoriesmentioning

confidence: 99%

Potential applications of bacteriorhodopsin mutants

et al. 2012

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Bacteriorhodopsin (BR), a model system in biotechnology, is a G-protein dependent trans membrane protein which serves as a light driven proton pump in the cell membrane of Halobacterium salinarum. Due to the linkage of retinal to the protein, it seems colored and has numbers of versatile properties. As in vitro culture of the Halobacteria is very difficult, and isolation is time consuming and usually inefficient, production of genetically modified constructs of the protein is essential. There are three important characteristics based on protein catalytic cycle and molecular functions of photo-electric, photochromic and proton transporting, which makes this protein as a strategic molecule with potential applications in biotechnology. Such applications include protein films, used in artificial retinal implants, light modulators, three-dimensional optical memories, color photochromic sensors, photochromic and electrochromic papers and ink, biological camouflage and photo detectors for biodefense and non-defense purposes.

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“…13 Q-state BR does not interact with red light. Ground state BR absorbs red light inducing a transition of the protein to the O-intermediate state where, unless green light is used to transition the protein to the Q-state, the protein reverts to the ground state.…”

mentioning

confidence: 96%

“…12 BR based 2D protein memory can provide data storage densities in excess of 10TBIT/in 2 , while utilizing much of the infrastructure and technology already developed for commercially available hard disc drives. 13 14 * Author to whom correspondence should be addressed.…”

mentioning

confidence: 99%

Considerations for the Implementation of 2D Protein Based Memory

Hudgins

Khizroev²

2011

J. Nanosci. Nanotech.

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The effect of double erasure on Monolayer Bacteriorhodopsin (BR) protein films after photonic excitation to the ultra stable Q-state is studied. It was found that the pronounced emission of 755 nm light occurs only as the protein is made to transition from the Q-state to the ground state via irradiation with blue light. Requirements for the implementation of a next generation Protein-Based Memory (PBM) device utilizing monolayer BR films are considered. The finite element method was used to simulate the optical intensity distribution of nano-aperture waveguides for Red (650 nm), Green (510 nm) and Blue (475 nm) light to analyze the utility of nanoaperture transducers for use in a Protein Based Memory device. The minimum output power required to induce a photochromic transition in BR is calculated to be between 20 nW and 27 nW on a 30 nm spot depending upon the operating wavelength.

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Protein-Based Disk Recording at Areal Densities beyond 10 Terabits/in.²

Cited by 12 publications

References 48 publications

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Potential applications of bacteriorhodopsin mutants

Considerations for the Implementation of 2D Protein Based Memory

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Protein-Based Disk Recording at Areal Densities beyond 10 Terabits/in.2

Cited by 12 publications

References 48 publications

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Hybrid interfaces in layered hydroxides: magnetic and multifunctional superstructures by design

Potential applications of bacteriorhodopsin mutants

Considerations for the Implementation of 2D Protein Based Memory

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Product

Resources

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Protein-Based Disk Recording at Areal Densities beyond 10 Terabits/in.²