Laser-assembled conductive 3D nanozyme film-based nitrocellulose sensor for real-time detection of H2O2 released from cancer cells

Bukhari, Qurat U.A.; Della Pelle, Flavio; Alvarez-Diduk, Ruslan; Scroccarello, Annalisa; Nogués, Carme; Careta, Oriol; Compagnone, Dario; Merkoci, Arben

doi:10.1016/j.bios.2024.116544

Biosensors and Bioelectronics

2024

DOI: 10.1016/j.bios.2024.116544

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Laser-assembled conductive 3D nanozyme film-based nitrocellulose sensor for real-time detection of H2O2 released from cancer cells

Qurat U.A. Bukhari,

Flavio Della Pelle,

Ruslan Alvarez-Diduk

et al.

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2024

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Cited by 2 publications

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THP as a sensor for the electrochemical detection of H2O2

Failla,

Ferlazzo,

Abbate

et al. 2024

Bioorganic Chemistry

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THP as a sensor for the electrochemical detection of H2O2

Failla,

Ferlazzo,

Abbate

et al. 2024

Bioorganic Chemistry

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Ultradense Electrochemical Chip and Machine Learning for High-Throughput, Accurate Anticancer Drug Screening

Doretto,

Corsato,

Silva

et al. 2024

ACS Sens.

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Despite the potentialities of electrochemical sensors, these devices still encounter challenges in devising high-throughput and accurate drug susceptibility testing. The lack of platforms for providing these analyses over the preclinical trials of drug candidates remains a significant barrier to developing medicines. In this way, ultradense electrochemical chips are combined with machine learning (ML) to enable high-throughput, userfriendly, and accurate determination of the viability of 2D tumor cells (breast and colorectal) aiming at drug susceptibility assays. The effect of doxorubicin (anticancer drug model) was assessed through cell detachment electrochemical assays by interrogating Ru(NH 3 ) 6 3+ with square wave voltammetry (SWV). This positive probe is presumed to imply sensitive monitoring of the on-sensor cellular death because of its electrostatic preconcentration in the socalled nanogap zone between the electrode surface and adherent cells. Highthroughput assays were obtained by merging fast individual SWV measurements (9 s) with the ability of chips to yield analyses of Ru(NH 3 ) 6 3+ in series. The approach's applicability was demonstrated across two analysis formats, drop-casting and microfluidic assays. One should also mention that fitting a multivariate descriptor from selected input data via ML proved to be essential to providing accurate determinations (98 to 104%) of cell viability and halfmaximal lethal concentration of the drug. The achieved results underscore the potential of the method in steering electrochemical sensors toward enabling high-throughput drug screening in practical applications.

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Laser-assembled conductive 3D nanozyme film-based nitrocellulose sensor for real-time detection of H2O2 released from cancer cells

Cited by 2 publications

References 47 publications

THP as a sensor for the electrochemical detection of H2O2

THP as a sensor for the electrochemical detection of H2O2

Ultradense Electrochemical Chip and Machine Learning for High-Throughput, Accurate Anticancer Drug Screening

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