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Harnessing Recombinant DnaJ Protein as Reversible Metal Chelator for a High-Performance Resistive Switching Device
- Source :
- Chemistry of Materials. 30:781-788
- Publication Year :
- 2018
- Publisher :
- American Chemical Society (ACS), 2018.
-
Abstract
- A high-performance biomaterial-based resistive switching (RS) device is fabricated by harnessing a thermally denatured protein (hexa-His-tagged recombinant molecular chaperone DnaJ (rDnaJ)) as a switching layer in a Cu/rDnaJ/Pt configuration on SiO2/Si substrate. The conductivity of the heat-denatured rDnaJ protein layer between the metal electrodes can be reversibly controlled to enable the formation/rupture of conductive Cu filaments by tailoring the metal chelating properties of the amino acid residues in the insulating protein matrix in a pH- and/or redox potential-dependent manner, giving rise to high-performance nonvolatile RS behavior. The rDnaJ-based RS device exhibits extremely low set voltage (∼0.12 V) and reset voltage (∼−0.08 V) with excellent uniformity, along with large memory window (RHRS/RLRS > 106) and long retention time (>106 s). In addition, the rDnaJ RS device, which is fabricated on a flexible poly(ethylene terephthalate) substrate, exhibits an uncompromised switching performance. Th...
- Subjects :
- Ethylene
Materials science
General Chemical Engineering
Substrate (chemistry)
02 engineering and technology
General Chemistry
Conductivity
010402 general chemistry
021001 nanoscience & nanotechnology
DNAJ Protein
01 natural sciences
Redox
Metal Chelator
0104 chemical sciences
Metal
chemistry.chemical_compound
chemistry
Chemical engineering
visual_art
Materials Chemistry
visual_art.visual_art_medium
0210 nano-technology
Layer (electronics)
Subjects
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........60949828be212c509342daaa537dc2aa