Research Archive

Publications

15

Publications

450

Citations

Analytical Chemistry

2026

Research Article

Dual-Enzyme Capillary Flow–Driven Microfluidic Sensor for Multiplexed Screening of Occupational and Take-Home Pesticide Exposure

ACS Sensors

Claire E. Hefner; Prakash Aryal; Talya Elam; Eric Brack; Charles S. Henry

microfluidics pesticides rapid testingcolorimetric biosensor

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Dual-Enzyme Capillary Flow–Driven Microfluidic Sensor for Multiplexed Screening of Occupational and Take-Home Pesticide Exposure

2026

Research Article

Capillary Flow-Driven Paper-Based Microfluidic Sensor for NDMA Detection in Water

Lab on a Chip

Prakash Aryal, Jade Manna-Rubenstein, Tessa Whitaker, Eric Brack, Charles S Henry

MicrofluidicsHeavy metalsColorimetric detection

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Capillary Flow-Driven Paper-Based Microfluidic Sensor for NDMA Detection in Water

2025

Research Article

Capillary Flow-Driven, Disposable Device for Dissolved Oxygen Sensing in Water Samples

Analytical Chemistry

Izabela Lewinska, Prakash Aryal, Eric Brack, Charles S Henry

Dissolved OxygenMicrofluidicsColorimetric detection

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Capillary Flow-Driven, Disposable Device for Dissolved Oxygen Sensing in Water Samples

2025

Research Article

Smartphone-Assisted Dual-Sided Capillary Microfluidic Device for Multiplex Detection of Heavy Metals and Nutrients in Drinking Water

Analytica Chimica Acta

Pornchanok Punnoy, Prakash Aryal, Claire E Hefner, Eric Brack, Nadnudda Rodthongkum, Pranut Potiyaraj, Charles S Henry

Heavy metalsNutrientsMicrofluidics

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Smartphone-Assisted Dual-Sided Capillary Microfluidic Device for Multiplex Detection of Heavy Metals and Nutrients in Drinking Water

2025

Conference

Bridging Lab and Field: Capillary Microfluidics for Rapid, Low-Cost, Citizen-Based Pollution Monitoring

The 29th International Conference on Miniaturized Systems for Chemistry and Life Sciences - Micro-Total Analysis Systems

Prakash Aryal, Claire Hefner, Pornchanok Punnoy, Eric Brack, Charles S. Henry

MicrofluidicsEnvironmental MonitoringCitizen Science

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Bridging Lab and Field: Capillary Microfluidics for Rapid, Low-Cost, Citizen-Based Pollution Monitoring

2025

Conference

Enhancing water quality monitoring in resource-limited settings: A user-friendly approach for contaminant detection

American Chemical Society Fall 2025

Prakash Aryal, Claire Hefner, Izabela Lewinska, Jason Boes, Charles Henry

Citizen scienceMicrofluidicsWater quality

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Enhancing water quality monitoring in resource-limited settings: A user-friendly approach for contaminant detection

2024

Review

Advancements and challenges in microfluidic paper-based analytical devices: design, manufacturing, sustainability, and field applications

Frontiers in Lab on a Chip Technologies

Prakash Aryal, Charles S Henry

Paper-based microfluidicsFabrication techniquesDetection methods

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Advancements and challenges in microfluidic paper-based analytical devices: design, manufacturing, sustainability, and field applications

2024

Review

Microfluidics in Environmental Analysis: Advancements, Challenges, and Future Prospects for Rapid and Efficient Monitoring

Lab on a Chip

Prakash Aryal, Claire Hefner, Brandaise Martinez, Charles S Henry

Environmental AnalysisMicrofluidicsApplications

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Microfluidics in Environmental Analysis: Advancements, Challenges, and Future Prospects for Rapid and Efficient Monitoring

2024

Research Article

Citizen-Based Water Quality Monitoring: Field Testing a User-Friendly Sensor for Phosphate Detection in Global Surface Waters

Analytical Chemistry

Prakash Aryal, Claire E Hefner, Brandaise Martinez, Eric Brack, Charles S Henry

Water Quality MonitoringMicrofluidicsCitizen science

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Citizen-Based Water Quality Monitoring: Field Testing a User-Friendly Sensor for Phosphate Detection in Global Surface Waters

2024

Research Article

Fill, Fold, Photo: Preconcentration and Multiplex Detection of Trace-Level Heavy Metals in Water

ACS Sensors

Prakash Aryal, Jason Boes, Eric Brack, Todd Alexander, Charles S Henry

PreconcentrationHeavy metalsMultiplexColorimetry

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Fill, Fold, Photo: Preconcentration and Multiplex Detection of Trace-Level Heavy Metals in Water

2024

Research Article

Capillary-Flow Driven Microfluidic Sensor Based on Tyrosinase for Fast User-Friendly Assessment of Pesticide Exposures

The Analyst

Claire E Hefner, Prakash Aryal, Eric Brack, Todd Alexander, Charles S Henry

TyrosinasePesticide ExposuresMicrofluidic Sensor

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Capillary-Flow Driven Microfluidic Sensor Based on Tyrosinase for Fast User-Friendly Assessment of Pesticide Exposures

2024

Research Article

Smartphone-enabled green anthocyanin sensor for Fe(III) sensing on paper using capillary-driven microfluidics

Green Analytical Chemistry

Prakash Aryal, Anastasia Wheni Indrianingsih, Charles S Henry

AnthocyaninFe(iii)Paper-based detection

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Smartphone-enabled green anthocyanin sensor for Fe(III) sensing on paper using capillary-driven microfluidics

2024

Research Article

Non-invasive iron deficiency diagnosis: a saliva-based approach using capillary flow microfluidics

Analytical Methods

Chirapha Prakobdi, Thaisa A Baldo, Prakash Aryal, Jeremy Link, Phoonthawee Saetear, Charles S Henry

Iron deficiencyNon-invasiveMicrofluidics

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Non-invasive iron deficiency diagnosis: a saliva-based approach using capillary flow microfluidics

2024

Conference

The use of Clitoria ternatea as sustainable detection tool for Ni (II) and Cu (II) ions in simple paper-based analytical device

IOP Conference Series: Earth and Environmental Science

AW Indrianingsih, P Aryal, CS Henry

Green ChemistryAnthocyaninMicrofluidics

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The use of Clitoria ternatea as sustainable detection tool for Ni (II) and Cu (II) ions in simple paper-based analytical device

2023

Research Article

Capillary Flow-Driven Microfluidics Combined with a Paper Device for Fast User-Friendly Detection of Heavy Metals in Water

Analytical Chemistry

Prakash Aryal, Eric Brack, Todd Alexander, Charles S Henry

Heavy metalsCapillary microfluidicsColorimetry

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Capillary Flow-Driven Microfluidics Combined with a Paper Device for Fast User-Friendly Detection of Heavy Metals in Water