James Reynolds

Works (17)

Updated: July 15th, 2024 06:10

2024 journal article

A Subcutaneously Injectable Implant for Multimodal Physiological Monitoring in Animals

IEEE SENSORS JOURNAL, 24(7), 11205–11216.

By: P. Ahmmed n , J. Reynolds n  & A. Bozkurt n

author keywords: Accelerometers; animal welfare; biocompatibility; biophotonics; cardiovascular health; electrocardiography (ECG); injectable implant; photoplethysmography (PPG); physiological monitoring; polymer encapsulation; temperature measurement
TL;DR: A miniaturized, injectable, and multimodal implant for real-time measurements of heart rate, breathing rate, movement, and subcutaneous temperature with future extensions to blood pressure and oxygen saturation is reported. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: March 1, 2024

2024 journal article

Evaluating Bacterial Nanocellulose Interfaces for Recording Surface Biopotentials from Plants

SENSORS, 24(7).

By: J. Reynolds n , M. Wilkins n, D. Martin n, M. Taggart n, K. Rivera*, M. Tunc-Ozdemir*, T. Rufty n, E. Lobaton n , A. Bozkurt n, M. Daniele n 

author keywords: nanocellulose; electrophysiology; plant; electrode
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: ORCID, Web Of Science, NC State University Libraries
Added: April 15, 2024

2024 journal article

Quantifying Visual Differences in Drought-Stressed Maize through Reflectance and Data-Driven Analysis

AI, 5(2), 790–802.

By: S. Banerjee n, J. Reynolds n , M. Taggart n, M. Daniele n , A. Bozkurt n & E. Lobaton n 

author keywords: crop health monitoring; drought-stress detection; remote sensing; near-infrared; pixel extraction; classification
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: June 8, 2024

2023 journal article

Rapid Drought Stress Detection in Plants Using Bioimpedance Measurements and Analysis

IEEE Transactions on AgriFood Electronics.

By: J. Reynolds n , M. Taggart  n, D. Martin  n, E. Lobaton n , A. Cardoso  n, M. Daniele n , A. Bozkurt  n

Contributors: J. Reynolds n , M. Taggart  n, D. Martin  n, E. Lobaton n , A. Cardoso  n, M. Daniele n , A. Bozkurt  n

TL;DR: It is demonstrated that bioimpedance measurements reflect the physiological changes in live plant tissue with induced alterations in their environmental conditions, and can function as a phenotyping tool for continuous and real time monitoring of plant stress to allow the development of strategies to prevent damage from environmental stresses such as drought. (via Semantic Scholar)
Source: ORCID
Added: December 12, 2023

2022 journal article

A Multimodal Sensing Platform for Interdisciplinary Research in Agrarian Environments

SENSORS, 22(15).

By: J. Reynolds n , E. Williams  n, D. Martin n, C. Readling n, P. Ahmmed n , A. Huseth n , A. Bozkurt n

author keywords: corn earworm; bivalve; testing platform; wireless; Internet of Things; sensor development; agriculture; aquaculture
MeSH headings : Agriculture; Electronics; Environmental Monitoring / methods; Interdisciplinary Research; Reproducibility of Results
TL;DR: The design of a modular system to serve as a research platform for outdoor sensor development and deployment and the flexibility to include internal electronics and external sensors, allowing novel applications is presented. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: July 28, 2022

2022 journal article

Continuous heart rate variability monitoring of freely moving chicken through a wearable electrocardiography recording system

POULTRY SCIENCE, 102(2).

By: P. Ahmmed n , J. Reynolds n , A. Bozkurt n & P. Regmi*

author keywords: electrocardiography; heart rate variability; chicken; animal welfare; wearables
MeSH headings : Animals; Chickens; Electrocardiography / veterinary; Heart Rate / physiology; Wearable Electronic Devices / veterinary
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: ORCID, Web Of Science, NC State University Libraries
Added: December 6, 2022

2022 article

Real-Time Monitoring of Plant Stalk Growth Using a Flexible Printed Circuit Board Sensor

2022 IEEE SENSORS.

By: J. Twiddy n, M. Taggart n, J. Reynolds n , C. Sharkey n, T. Rufty n, E. Lobaton n , A. Bozkurt n, M. Daniele n 

author keywords: Plant growth; circumferential sensor; mechanical sensing; multiplexer; crop monitoring; maize; electrode array
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
2. Zero Hunger (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: February 27, 2023

2021 journal article

An Accelerometer-based Sensing System to Study the Valve-gaping Behavior of Bivalves

IEEE Sensors Letters, 1–1.

By: P. Ahmmed n , J. Reynolds n , J. Levine n  & A. Bozkurt  n

author keywords: Sensor systems; accelerometers; angle measurement; biomarkers; bivalves; freshwater mussels; gaping
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
14. Life Below Water (Web of Science)
Sources: ORCID, Crossref, NC State University Libraries
Added: April 22, 2021

2021 article

Novel 3D-printed Electrodes for Implantable Biopotential Monitoring

2021 43RD ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE & BIOLOGY SOCIETY (EMBC), pp. 7120–7123.

By: P. Ahmmed n , J. Reynolds n , S. Hamada*, P. Regmi n & A. Bozkurt n

MeSH headings : Animals; Electric Conductivity; Electrodes; Equipment Design; Humans; Printing, Three-Dimensional; Prostheses and Implants
TL;DR: A novel 3D-printing process to integrate conductive metal surfaces on a low-temperature co-fired ceramic base to be deployed as electrodes for electrocardiography (ECG) implants for small animals and simultaneous recording with a commercial device validated the measurements, demonstrating promising accuracy in heart rate and breathing rate monitoring. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: December 21, 2021

2021 article

Towards Continuous Plant Bioimpedance Fitting and Parameter Estimation

2021 IEEE SENSORS.

By: D. Martin n, J. Reynolds n , M. Daniele n , E. Lobaton n  & A. Bozkurt n

author keywords: bioimpedance parameter extraction; equivalent circuit modelling; precision agriculture; cyberphysical systems
TL;DR: This study developed a software pipeline to support impedance sensing applications and applied this to track longitudinal consistent bioimpedance data from the V4 leaf midrib in maize plants, demonstrating that the analysis of an example longitudinal dataset was able to reveal a time series for parameter fitting. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: February 28, 2022

2020 conference paper

An Environmental Station with Bioimpedance Capabilities for Agricultural Deployment

2020 IEEE SENSORS.

By: J. Reynolds n , M. Taggart n, E. Lobaton  n, M. Daniele  n, T. Rufty  n & A. Bozkurt  n

UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
13. Climate Action (Web of Science)
14. Life Below Water (Web of Science)
15. Life on Land (Web of Science)
Source: ORCID
Added: June 3, 2021

2019 journal article

An Injectable System for Subcutaneous Photoplethysmography, Accelerometry, and Thermometry in Animals

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 13(5), 825–834.

By: J. Reynolds n , P. Ahmmed n  & A. Bozkurt n

author keywords: Accelerometers; biomedical electronics; biophotonics; cardiology; encapsulation; hypodermic needles; implant; in vivo; photoplethysmography; temperature measurement
MeSH headings : Accelerometry / instrumentation; Accelerometry / methods; Animals; Chickens; Movement; Needles; Photoplethysmography / instrumentation; Photoplethysmography / methods; Rats; Thermography / instrumentation; Thermography / methods; Wireless Technology / instrumentation
TL;DR: The design and deployment of a miniaturized capsule-based system for subdermal injection to provide real-time and continuous heart-rate, movement, and core-body-temperature measurements is demonstrated. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 9, 2019

2018 conference paper

Preliminary Evaluation of an Injectable Sensor for Subcutaneous Photoplethysmography in Animals

2018 IEEE Biomedical Circuits and Systems Conference (BioCAS).

By: J. Reynolds n , P. Ahmmed n  & A. Bozkurt  n

TL;DR: The construction and preliminary evaluation of a capsule system that can be easily injected under the skin of animals for real-time photoplethysmography and the heart rate monitoring accuracy is comparable to that of traditional electrocardiography measured with subdermal needle electrodes on rat models. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: June 3, 2021

2017 journal article

In Vitro</italic> Evaluation of an Injectable EEG/ECG Sensor for Wireless Monitoring of Hibernation in Endangered Animal Species

IEEE Sensors Journal, 18(2), 798–808.

By: J. Valero-Sarmiento n, J. Reynolds n , A. Krystal * & A. Bozkurt n

Contributors: J. Valero-Sarmiento n, J. Reynolds n , A. Krystal * & A. Bozkurt n

author keywords: Injectable; wireless; EEG; ECG; hibernation; software-defined radio; inductive coupling
TL;DR: This paper has developed an ultra-miniaturized wireless system that can be packaged inside a glass or polymer capsule and injected subcutaneously underneath the scalp or chest without requiring a surgery, thereby addressing the shortcomings of the traditional monitoring systems. (via Semantic Scholar)
Sources: ORCID, Crossref
Added: June 14, 2019

2017 conference paper

The viability of conductive medical epoxy as an implantable electrode material

Proceedings of IEEE Sensors, 2017-December, 1–3.

By: J. Reynolds n , J. Valero-Sarmiento n, J. Dieffenderfer  n & A. Bozkurt  n

Contributors: J. Reynolds n , J. Valero-Sarmiento n, J. Dieffenderfer  n & A. Bozkurt  n

TL;DR: Electrodes are an important part of any medical implant for making biopotential measurements, but current designs have shortcomings and using conductive medical epoxy could provide greater flexibility during the implant design process. (via Semantic Scholar)
Source: ORCID
Added: June 2, 2021

2016 conference paper

Nanocellulose electrodes for interfacing plant electrochemistry

Proceedings of IEEE Sensors.

By: K. Keller  n, M. Wilkins n, J. Reynolds n , J. Dieffenderfer  n, C. Hood n, M. Daniele  n, A. Bozkurt  n, M. Tunc-Ozdemir*

Contributors: K. Keller  n, M. Wilkins n, J. Reynolds n , J. Dieffenderfer  n, C. Hood n, M. Daniele  n, A. Bozkurt  n, M. Tunc-Ozdemir*

TL;DR: N nanocellulose based novel dry electrodes suitable for use as non-invasive bioelectrical plant interfaces designed to monitor plant electrochemistry without significantly disturbing their physiology are presented. (via Semantic Scholar)
Sources: ORCID, NC State University Libraries
Added: June 2, 2021

2016 conference paper

Nanocellulose electrodes for interfacing plant electrochemistry

2016 ieee sensors.

By: K. Keller, M. Wilkins, J. Reynolds , J. Dieffenderfer, C. Hood, M. Daniele , A. Bozkurt, M. Tunc-Ozdemir

Source: NC State University Libraries
Added: August 6, 2018

Employment

Updated: January 12th, 2024 09:08

2022 - 2023

North Carolina State University Raleigh, US
Post-Doctoral Research Scholar

Education

Updated: January 12th, 2024 09:07

2016 - 2021

NC State University Raleigh, NC, US
Electrical Engineering, PhD Electrical and Computer Engineering

2016 - 2017

North Carolina State University Raleigh, NC, US
M.S. Electrical Engineering Electrical and Computer Engineering

2012 - 2015

Bob Jones University Greenville, SC, US
Engineering, BS Engineering

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