Recombinant azurin-CdSe/ZnS hybrid structures for nanoscale resistive random access memory device

Yagati, Ajay Kumar; Kim, Sang-Uk; Lee, Taek; Min, Junhong; Choi, Jeong‐Woo

doi:10.1016/j.bios.2016.11.037

Cited by 23 publications

(23 citation statements)

References 27 publications

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“…The device can be programmed for 50 cycles with an ON/OFF ratio of around 1000. Thus, the developed device shows high stability and shows a repeatable hysteresis curve, and the performance of the device is better than the recombinant azurin/CdSe-ZnS device [ 20 ], which required a voltage greater than 2.0 V to switch the device ON. Furthermore, the performance of the device can be easily fine-tuned by incorporating various types of CdSe-ZnS nanoparticles that demonstrate a size-dependent carrier relaxation process [ 7 ].…”

Section: Resultsmentioning

confidence: 99%

“…The conjugation of biomolecules with CdSe-ZnS nanoparticles has been achieved by covalent bond formation via different linker molecules [ 18 ] and with the help of electrostatic interaction in self-assembled cases [ 19 ]. Recently, CdSe-ZnS quantum dots coupled with bio/organic molecules based structures have shown electrical bistability with good charge retention characteristics, during current-voltage ( I-V ) sweep measurements for future memory applications [ 20 ]. Generally, in semiconductor nanoparticles, electrical bistability arises due to the charge confinement [ 21 ]; however, in bio-nano hybrid molecules, the conformational change or the electro-reduction of molecules plays a key role in changing the conductivity of the molecules [ 22 ], which has led to the development of advanced electronic devices with repeatable conductance switching applications.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, formation of bio-hybrid nanostructures by fine-tuning the surface properties results in excellent electronic and optical properties for an enormous range of applications such as sensing, imaging, delivery, catalysis and memory devices. Hence, hybrid structures containing inorganic nanoparticles are currently emerging as excellent candidates for potential applications in next-generation nonvolatile memory devices [ 20 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…The use of azurin in direct communication with the electrode provides the basis for electron transport for memory applications [ 24 , 25 ]. Recently, we proposed a nanoscale resistive random access memory device based on recombinant azurin and CdSe-ZnS particles [ 20 ]; however, there are drawbacks to making this structure, such as the long time and complicated steps required to generate the hybrid structures using recombinant DNA technology. Furthermore, complex design skills were required to produce recombinant engineered protein at high yield in order to develop these bio-nano hybrids.…”

Section: Introductionmentioning

confidence: 99%

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Azurin/CdSe-ZnS-Based Bio-Nano Hybrid Structure for Nanoscale Resistive Memory Device

2017

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In the present study, we propose a method for bio-nano hybrid formation by coupling a redox metalloprotein, Azurin, with CdSe-ZnS quantum dot for the development of a nanoscale resistive memory device. The covalent interaction between the two nanomaterials enables a strong and effective binding to form an azurin/CdSe-ZnS hybrid, and also enabled better controllability to couple with electrodes to examine the memory function properties. Morphological and optical properties were performed to confirm both hybrid formations and also their individual components. Current-Voltage (I–V) measurements on the hybrid nanostructures exhibited bistable current levels towards the memory function device, that and those characteristics were unnoticeable on individual nanomaterials. The hybrids showed good retention characteristics with high stability and durability, which is a promising feature for future nanoscale memory devices.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Azurin/CdSe-ZnS-Based Bio-Nano Hybrid Structure for Nanoscale Resistive Memory Device

2017

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“…Nanomaterials that have been used to develop effective bioelectronic computing systems using protein‐based biomolecules include carbon‐based materials, including CNTs and graphene, metal nanomaterials, and other novel materials that have been hybridized with biomolecules. [ 102,103 ]…”

Section: Bioelectronic Devices Using Protein‐based Nanobiohybrid Matementioning

confidence: 99%

Nanobiohybrid Material‐Based Bioelectronic Devices

Yoon

Shin

Lim

et al. 2020

Biotechnology Journal

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Biomolecules, especially proteins and nucleic acids, have been widely studied to develop biochips for various applications in scientific fields ranging from bioelectronics to stem cell research. However, restrictions exist due to the inherent characteristics of biomolecules, such as instability and the constraint of granting the functionality to the biochip. Introduction of functional nanomaterials, recently being researched and developed, to biomolecules have been widely researched to develop the nanobiohybrid materials because such materials have the potential to enhance and extend the function of biomolecules on a biochip. The potential for applying nanobiohybrid materials is especially high in the field of bioelectronics. Research in bioelectronics is aimed at realizing electronic functions using the inherent properties of biomolecules. To achieve this, various biomolecules possessing unique properties have been combined with novel nanomaterials to develop bioelectronic devices such as highly sensitive electrochemical-based bioelectronic sensing platforms, logic gates, and biocomputing systems. In this review, recently reported bioelectronic devices based on nanobiohybrid materials are discussed. The authors believe that this review will suggest innovative and creative directions to develop the next generation of multifunctional bioelectronic devices.

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Recent Progress of Protein‐Based Data Storage and Neuromorphic Devices

Wang

Qian

Huang

et al. 2020

Advanced Intelligent Systems

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By virtue of energy efficiency, high speed, and parallelism, brain‐inspired neuromorphic computing is a promising technology to overcome the von Neumann bottleneck and capable of processing massive sophisticated tasks in the background of big data. The abilities of perceiving and reacting to events in artificial neuromorphic systems allow us to build the communicative electronic–biological interfaces to get closer to electronic life. Protein materials offer great application potentials in such a system due to their sustainability, low cost, controllable hierarchical structure, intrinsic biocompatibility, and biodegradability. Herein, a timely review of the development of protein‐based memories for data storage and neuromorphic computing is provided. Proteins’ unique mechanical, electronic, optical properties, and their broad applications are discussed. Then, the progress of protein‐based two‐terminal memristor and three‐terminal transistor‐type memory is reviewed, and their applications for data storage, logic circuit, and neuromorphic computing are introduced. Finally, the major challenges and outlook toward the future developing directions of protein‐based computing systems are pointed out.

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Recombinant azurin-CdSe/ZnS hybrid structures for nanoscale resistive random access memory device

Cited by 23 publications

References 27 publications

Azurin/CdSe-ZnS-Based Bio-Nano Hybrid Structure for Nanoscale Resistive Memory Device

Azurin/CdSe-ZnS-Based Bio-Nano Hybrid Structure for Nanoscale Resistive Memory Device

Nanobiohybrid Material‐Based Bioelectronic Devices

Recent Progress of Protein‐Based Data Storage and Neuromorphic Devices

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