Embedding a multichannel ISFET-pH sensor array in marine sediments: A new approach for continuous in situ pH monitoring

This dataset contains the source data used to generate Figures 3–7 in the manuscript entitled "Embedding a multichannel ISFET-pH sensor array in marine sediments: A new approach for continuous in situ pH monitoring". The data include results from laboratory analyses, sensor characterization, and field observations.Figure3_XPS.xlsx: X-ray photoelectron spectroscopy (XPS) data used to characterize the chemical composition of the tantalum oxide (Ta₂O₅) sensing membrane deposited on the ISFET devices.Figure4.xlsx: Time-series gate-source voltage (Vgs) data recorded when the ISFET sensors were immersed in NBS standard buffer solutions, Tris and AMP buffers in artificial seawater, and natural seawater.Figure5.xlsx: Laboratory-based time-series pH data measured using both the ISFET sensor array and a commercial needle-type glass pH electrode.Figure6.xlsx: Time-series pH data recorded by the ISFET-pH sensor array during in situ field observations conducted in coral reef sediments.Figure7.xlsx: Comparative time-series pH data collected simultaneously by the ISFET-pH sensor and a commercial glass pH electrode (HOBO MX2501) during field deployment.All datasets are provided in .xlsx format and are intended to support the reproducibility and transparency of the results presented in the associated manuscript.