Monitoring in situ microbial activities in wet or clayey soils by a novel microbial-electrochemical technology

Jin, Kylan S.; Fallgren, Paul H.; Santiago, Nicholas A.; Ren, Zhiyong Jason; Li, Yuehua; Jin, Song

doi:10.1016/j.eti.2020.100695

Cited by 5 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To correlate the failure behavior of PHBV‐C traces with soil microbial activity, CO 2 efflux measurements [ 21 , 69 ] were performed alongside degradation tests. Here, we use temperature to vary soil microbial activity.…”

Section: Resultsmentioning

confidence: 99%

“…[ 18 ] In addition, a “microbial electrochemical technology” or “microbial electrochemical system,” which detects electrons emitted or accepted by microbes as they digest organic matter, [ 19 , 20 ] has shown promising results for in situ soil microbial activity sensing using a relatively simple apparatus. [ 21 ] Despite these novel technologies, a direct, real‐time, in situ measure of microbial processes remains elusive.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Transient Printed Soil Decomposition Sensor Based on a Biopolymer Composite Conductor

et al. 2022

View full text Add to dashboard Cite

Soil health is one of the key factors in determining the sustainability of global agricultural systems and the stability of natural ecosystems. Microbial decomposition activity plays an important role in soil health; and gaining spatiotemporal insights into this attribute is critical for understanding soil function as well as for managing soils to ensure agricultural supply, stem biodiversity loss, and mitigate climate change. Here, a novel in situ electronic soil decomposition sensor that relies on the degradation of a printed conductive composite trace utilizing the biopolymer poly( -hydroxybutyrate-co--hydroxyvalerate) as a binder is presented. This material responds selectively to microbially active environments with a continuously varying resistive signal that can be readily instrumented with low-cost electronics to enable wide spatial distribution. In soil, a correlation between sensor response and intensity of microbial decomposition activity is observed and quantified by comparison with respiration rates over days, showing that devices respond predictably to both static conditions and perturbations in general decomposition activity.

show abstract

Section: Resultsmentioning

confidence: 99%