English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Emerging concepts for neuromorphic computing, bioelectronics, andbrain-computer interfacing inspire new research avenues aimed at understandingthe relationship between oxidation state and conductivity in unexploredmaterials. Here, we present ruthenium Prussian blue analogue (RuPBA), a mixedvalence coordination compound with an open framework structure and ability toconduct both ionic and electronic charge, for flexible artificial synapses thatreversibly switch conductance by more than four orders of magnitude based onelectrochemically tunable oxidation state. Retention of programmed states isimproved by nearly two orders of magnitude compared to the extensively studiedorganic polymers, thus reducing the frequency, complexity and energy costsassociated with error correction schemes. We demonstrate dopamine detectionusing RuPBA synapses and biocompatibility with neuronal cells, evokingprospective application for brain-computer interfacing. By application ofelectron transfer theory to in-situ spectroscopic probing of intervalencecharge transfer, we elucidate a switching mechanism whereby the degree of mixedvalency between N-coordinated Ru sites controls the carrier concentration andmobility, as supported by DFT.

Tunable intervalence charge transfer in ruthenium Prussian blue analogue enables stable and efficient biocompatible artificial synapses