Investigation of iridium, ruthenium, rhodium, and palladium binary metal oxide solid solution thin films for implantable neural interfacing applications

Taylor, Gregory; Shallenberger, Jeffrey R.; Tint, Saxon; Fones, Andrew; Hamilton, Hugh; Yu, Lei; Amini, Shahram; Hettinger, J. D.

doi:10.1016/j.surfcoat.2021.127803

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…In the gaseous form the ozone (o3) gas with the greater parts per billion and parts per million ranges is likely to detect or sense with the solid state conducto-metric sensors based on semiconductor oxide films like In2O3, WO3 and rhodium (Amorello et al 2023). These oxides are based on negative type semiconductor and the ozone gas concentration is inversely related to its conductance in the atmosphere (Taylor et al 2021). The rhodium is combined with the metal oxides, because it is a plantium group metals and mainly used for increasing the stability of the device.…”

Section: Introductionmentioning

confidence: 99%

Predicting Ozone Depletion using BIn2O3 With RH based Solid Conductometric Sensor

2024

Global NEST: The International Journal

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<p>Ozone depletion arises due to the presence of gases like chlorofluorocarbons and halons which are liberated into the atmosphere. The region of earth’s atmosphere named as ozone shield, in which absorbs the ultra violet radiations of the sun. Although, its thickness varies periodically, this layer is primarily located in the lower stratosphere between 15 to 35 kms above the earth. Due to this, the ultraviolet rays directly enter into the earth causes harmful effects little by little on both living and non-living organisms. In this paper, BIn2O3 with rh sensor in co precipitation method is used to detect the ozone depletion and it is based on the solid-state gas sensors. To achieve the excellent performance of an ozone depletion detecting branch like BIn2O3 with rh, this was designed using a simple precipitation method. The coprecipitation method had deposited in BIn2O3 with a thickness of 45 to 50 nanometer. The detection limit of ozone reduced as 30 parts per billion. Further, the gas detector demonstrated high sensitivity and selectivity of the device. The rhodium covers the surface areas ranges from 0 to 0.1. It reaches the accuracy of 96%. According to the degree of rhodium coverage, the sensors will be response to the ozone gas. The oxygen chemisorbed ability and a coverage of a great surface area of BIn2O3 with rhodium highly related to the excellent sensing behavior. This study paves the way for an exact sensing and ppb level detection ozone gas.</p>

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Section: Introductionmentioning

confidence: 99%

Predicting Ozone Depletion using BIn2O3 With RH based Solid Conductometric Sensor

2024

Global NEST: The International Journal

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Hierarchical Surface Restructuring of Ultra‐Thin Electrodes and Microelectrode Arrays for Neural Interfacing with Peripheral and Central Nervous Systems

Blagojevic,

Seche,

Choi

et al. 2024

Adv Materials Inter

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Long‐term implantable neural interfacing devices are crucial in neurostimulation for treating various neurological disorders. These devices rely heavily on electrodes and microelectrode arrays. As the invasiveness of these electrodes increases—particularly for peripheral and central nervous system applications—both potential benefits and risks of adverse side effects to the patient rise. To mitigate risks and enhance device performance and longevity, electrodes for such invasive applications must be thin, flexible, and have small contacts. However, these features typically reduce the geometric surface area and electrochemical performance of the electrodes, diminishing treatment benefits. This report explores the feasibility and advantages of using femtosecond laser hierarchical surface restructuring (HSR) technology to improve electrochemical performance without compromising the structural integrity of ultra‐thin (<25 µm) platinum‐iridium alloy (Pt10Ir) electrode contacts. In this report, an HSR process is developed that significantly enhances the electrochemical performance of 20 µm thick Pt10Ir electrodes by controlling the depth of restructuring. A comprehensive characterization is conducted to assess the surface, sub‐surface, morphological, microstructural, and electrochemical properties of these restructured electrodes using multiple characterization modalities. This evaluation aimed to assess the electrodes' performance and to identify features that promote efficient electron transfer, high electrochemical surface area, excellent electrochemical performance, and biocompatibility.

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Performance studies of Pt, Pd and PtPd supported on SBA-15 for wet CO and hydrocarbon oxidation

Khan,

Abou-Daher,

de Freitas

et al. 2024

Catalysis Today

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Investigation of iridium, ruthenium, rhodium, and palladium binary metal oxide solid solution thin films for implantable neural interfacing applications

Cited by 6 publications

References 29 publications

Predicting Ozone Depletion using BIn2O3 With RH based Solid Conductometric Sensor

Predicting Ozone Depletion using BIn2O3 With RH based Solid Conductometric Sensor

Hierarchical Surface Restructuring of Ultra‐Thin Electrodes and Microelectrode Arrays for Neural Interfacing with Peripheral and Central Nervous Systems

Performance studies of Pt, Pd and PtPd supported on SBA-15 for wet CO and hydrocarbon oxidation

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