1
|
Kozłowska K, Cieślik M, Koterwa A, Formela K, Ryl J, Niedziałkowski P. Microwave-Induced Processing of Free-Standing 3D Printouts: An Effortless Route to High-Redox Kinetics in Electroanalysis. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2833. [PMID: 38930201 PMCID: PMC11204644 DOI: 10.3390/ma17122833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 05/21/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024]
Abstract
3D-printable composites have become an attractive option used for the design and manufacture of electrochemical sensors. However, to ensure proper charge-transfer kinetics at the electrode/electrolyte interface, activation is often required, with this step consisting of polymer removal to reveal the conductive nanofiller. In this work, we present a novel effective method for the activation of composites consisting of poly(lactic acid) filled with carbon black (CB-PLA) using microwave radiation. A microwave synthesizer used in chemical laboratories (CEM, Matthews, NC, USA) was used for this purpose, establishing that the appropriate activation time for CB-PLA electrodes is 15 min at 70 °C with a microwave power of 100 W. However, the usefulness of an 80 W kitchen microwave oven is also presented for the first time and discussed as a more sustainable approach to CB-PLA electrode activation. It has been established that 10 min in a kitchen microwave oven is adequate to activate the electrode. The electrochemical properties of the microwave-activated electrodes were determined by electrochemical techniques, and their topography was characterized using scanning electron microscopy (SEM), Raman spectroscopy, and contact-angle measurements. This study confirms that during microwave activation, PLAs decompose to uncover the conductive carbon-black filler. We deliver a proof-of-concept of the utility of kitchen microwave-oven activation of a 3D-printed, free-standing electrochemical cell (FSEC) in paracetamol electroanalysis in aqueous electrolyte solution. We established satisfactory limits of linearity for paracetamol detection using voltammetry, ranging from 1.9 μM to 1 mM, with a detection limit (LOD) of 1.31 μM.
Collapse
Affiliation(s)
- Kornelia Kozłowska
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdansk, Poland; (K.K.); (M.C.); (A.K.)
| | - Mateusz Cieślik
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdansk, Poland; (K.K.); (M.C.); (A.K.)
- Institute of Nanotechnology and Materials Engineering, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Adrian Koterwa
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdansk, Poland; (K.K.); (M.C.); (A.K.)
| | - Krzysztof Formela
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland;
- Advanced Materials Center, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Jacek Ryl
- Institute of Nanotechnology and Materials Engineering, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Paweł Niedziałkowski
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdansk, Poland; (K.K.); (M.C.); (A.K.)
| |
Collapse
|
2
|
Chen KY, Kachhadiya J, Muhtasim S, Cai S, Huang J, Andrews J. Underground Ink: Printed Electronics Enabling Electrochemical Sensing in Soil. MICROMACHINES 2024; 15:625. [PMID: 38793198 PMCID: PMC11123188 DOI: 10.3390/mi15050625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024]
Abstract
Improving agricultural production relies on the decisions and actions of farmers and land managers, highlighting the importance of efficient soil monitoring techniques for better resource management and reduced environmental impacts. Despite considerable advancements in soil sensors, their traditional bulky counterparts cause difficulty in widespread adoption and large-scale deployment. Printed electronics emerge as a promising technology, offering flexibility in device design, cost-effectiveness for mass production, and a compact footprint suitable for versatile deployment platforms. This review overviews how printed sensors are used in monitoring soil parameters through electrochemical sensing mechanisms, enabling direct measurement of nutrients, moisture content, pH value, and others. Notably, printed sensors address scalability and cost concerns in fabrication, making them suitable for deployment across large crop fields. Additionally, seamlessly integrating printed sensors with printed antenna units or traditional integrated circuits can facilitate comprehensive functionality for real-time data collection and communication. This real-time information empowers informed decision-making, optimizes resource management, and enhances crop yield. This review aims to provide a comprehensive overview of recent work related to printed electrochemical soil sensors, ultimately providing insight into future research directions that can enable widespread adoption of precision agriculture technologies.
Collapse
Affiliation(s)
- Kuan-Yu Chen
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Jeneel Kachhadiya
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Sharar Muhtasim
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
| | - Shuohao Cai
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI 53706, USA; (S.C.); (J.H.)
| | - Jingyi Huang
- Department of Soil Science, University of Wisconsin-Madison, Madison, WI 53706, USA; (S.C.); (J.H.)
| | - Joseph Andrews
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.-Y.C.); (J.K.); (S.M.)
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| |
Collapse
|
3
|
Agron DS, Kim WS. 3D Printing Technology: Role in Safeguarding Food Security. Anal Chem 2024; 96:4333-4342. [PMID: 38459927 PMCID: PMC10955516 DOI: 10.1021/acs.analchem.3c05190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/11/2024]
Abstract
The rising threats to food security include several factors, such as population growth, low agricultural investment, and poor distribution systems. Consequently, food insecurity results from a confluence of issues, including diseases, processing limitations, and distribution deficiencies. Food insecurity usually occurs in vulnerable areas where certain technologies and traditional food safety testing are not a viable solution for foodborne disease detection. In this regard, 3D printing technologies and 3D printed sensors open the platform to produce portable, accurate, and low-cost sensors that address the gaps and challenges in food security. In this paper, we discuss the perspective role of 3D printed sensors in food security in terms of food safety and food quality monitoring to provide reliable access to nutritious, affordable food. In each section, we highlight the advantages of 3D printing technology in terms of cost-effectiveness, accuracy, accessibility, and reproducibility compared to traditional manufacturing methodologies. Recent developments in robotic technologies for mechanization, such as food handling with soft grippers, are also discussed. Lastly, we delve into the applications of advanced 3D printing technologies in agricultural monitoring, particularly the future of plant wearables, environmental sensing, and overall plant health monitoring.
Collapse
Affiliation(s)
- Danielle
Jaye S. Agron
- Additive
Manufacturing Laboratory, School of Mechatronic Systems Engineering, Simon Fraser University, Burnaby, B.C. V3T 0N1, Canada
| | - Woo Soo Kim
- Additive
Manufacturing Laboratory, School of Mechatronic Systems Engineering, Simon Fraser University, Burnaby, B.C. V3T 0N1, Canada
| |
Collapse
|
4
|
Raucci A, Miglione A, Cimmino W, Cioffi A, Singh S, Spinelli M, Amoresano A, Musile G, Cinti S. Technical Evaluation of a Paper-Based Electrochemical Strip to Measure Nitrite Ions in the Forensic Field. ACS MEASUREMENT SCIENCE AU 2024; 4:136-143. [PMID: 38404486 PMCID: PMC10885323 DOI: 10.1021/acsmeasuresciau.3c00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 02/27/2024]
Abstract
Nitrite is a compound used as a food additive for its preservative action and coloring capability, as well as an industrial agent for its antifreezing action and for preventing corrosion, and it is also used as a pharmaceutical in cyanide detoxification therapy. However, even recently, because of its high toxicity, it has been used as a murder and suicidal agent due to its affordability and ready availability. In this technical report, we describe an electrochemical paper-based device for selectively determining nitrite in complex biofluids, such as blood, cadaveric blood, vitreous humor, serum, plasma, and urine. The approach was validated in terms of the linearity of response, selectivity, and sensitivity, and the accuracy of the determination was verified by comparing the results with a chromatographic instrumental method. A linear response was observed in the micromolar range; the sensitivity of the method expressed as the limit of detection was 0.4 μM in buffer measurements. The simplicity of use, the portability of the device, and the performance shown make the approach suitable for detecting nitrite in complex biofluids, including contexts of forensic interest, such as murders or suicides in which nitrite is used as a toxic agent. Limits of detection of ca. 1, 2, 4, 5, 3, and 4 μM were obtained in vitreous humor, urine, serum and plasma, blood, and cadaveric blood, also highlighting a satisfactory accuracy comprised between 91 and 112%.
Collapse
Affiliation(s)
- Ada Raucci
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Antonella Miglione
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Wanda Cimmino
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Alessia Cioffi
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Sima Singh
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Michele Spinelli
- Department
of Chemical Sciences, University of Naples
Federico II, 80126 Naples, Italy
| | - Angela Amoresano
- Department
of Chemical Sciences, University of Naples
Federico II, 80126 Naples, Italy
| | - Giacomo Musile
- Department
of Diagnostics and Public Health, University
of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Stefano Cinti
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
- BAT
Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental
Technology, University of Naples “Federico
II”, 80055 Naples, Italy
| |
Collapse
|
5
|
Valsalakumar VC, Vasudevan S. Zirconium Phosphate-Incorporated Polyaniline-Graphene Oxide Composite Modified Electrodes for Effective and Selective Detection of Nitrite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15730-15739. [PMID: 37890029 DOI: 10.1021/acs.langmuir.3c02303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Nitrite contamination in food, water, and environmental samples poses a substantial health hazard, owing to its capacity for transformation into carcinogenic compounds. Given the profound ecological and physiological implications, precise and highly sensitive surveillance of nitrite has emerged as an imperative area of concern, addressing the substantial detrimental impact that it can have on both terrestrial and aquatic ecosystems. The novel electroactive polyaniline-graphene oxide composite, incorporating hexagonal zirconium phosphate discs (PGZrP), was systematically engineered as a foundation for an advanced electrochemical sensor, enabling precise nitrite detection in diverse aqueous and biological matrices. At a specific potential peak of +0.85 V, observed within a pH 7.0 phosphate buffer solution, the PGZrP-modified glassy carbon electrode (GCE) exhibited exceptional electrocatalytic proficiency in the sensing nitrite ions (NO2-), surpassing the performance of alternative electrode configurations, including the zirconium phosphate-modified GCE (ZrP/GCE), graphene oxide-modified GCE (GO/GCE), polyaniline-graphene oxide-modified GCE (PG/GCE), and the unmodified bare glassy carbon electrode. The constructed sensor demonstrated an impressive limit of detection at 80 nM along with a broad and linear detection range spanning from 124 nM to 40 mM. The synergistic effect created by the close contact between ZrP and PG, which resulted in a well-enhanced electrochemical sensing capability, was responsible for this exceptional activity. The developed sensor exhibited an enhanced electrochemical performance characterized by an extended operational range, a heightened detection threshold, and exceptional sensitivity. The PGZrP/GCE sensor, as fabricated, consistently demonstrated commendable operational stability, robust reproducibility, and remarkable repeatability in its capacity for nitrite detection. Furthermore, its successful application in the precise quantification of nitrite levels within environmental water samples and blood specimens showcased an impressive recovery rate, establishing it as a promising tool for diverse analytical applications. These findings indicate the promising potential of the PGZrP composite for integration into electrochemical devices designed to deliver rapid response times, heightened sensitivity, and sustained stability, thereby placing it as a potential candidate for the production of cutting-edge sensors, particularly those employed for the precise recognition of nitrite in aquatic and biological specimens.
Collapse
Affiliation(s)
- Vidhya C Valsalakumar
- Department of Chemistry, National Institute of Technology Calicut, Calicut, Kerala 673601, India
| | - Suni Vasudevan
- Department of Chemistry, National Institute of Technology Calicut, Calicut, Kerala 673601, India
| |
Collapse
|
6
|
de Moraes NC, Carvalho RM, Ferreira VS, da Silva RAB, de Melo EI, Petroni JM, Lucca BG. Improving the performance and versatility of microfluidic thread electroanalytical devices by automated injection with electronic pipettes: a new and powerful 3D-printed analytical platform. Mikrochim Acta 2023; 190:461. [PMID: 37926729 DOI: 10.1007/s00604-023-06026-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023]
Abstract
Microfluidic cotton thread-based electroanalytical devices (μTEDs) are analytical systems with attractive features such as spontaneous passive flow, low cost, minimal waste production, and good sensitivity. Currently, sample injection in µTEDs is performed by hand using manual micropipettes, which have drawbacks such as inconstant speed and position, dependence of skilled analysts, and need of physical effort of operator during prolonged times, leading to poor reproducibility and risk of strain injury. As an alternative to these inconveniences, we propose, for the first time, the use of electronic micropipettes to carry out automated injections in µTEDs. This new approach avoids all disadvantages of manual injections, while also improving the performance, experience, and versatility of µTEDs. The platform developed here is composed by three 3D-printed electrodes (detector) attached to a 3D-printed platform containing an adjustable holder that keeps the electronic pipette in the same x/y/z position. As a proof-of-concept, both injection modes (manual and electronic) were compared using three model analytes (nitrite, paracetamol, and 5-hydroxytryptophan) on µTED with amperometric detection. As result, improved analytical performance (limits of detection between 2.5- and 5-fold lower) was obtained when using electronic injections, as well as better repeatability/reproducibility and higher analytical frequencies. In addition, the determination of paracetamol in urine samples suggested better precision and accuracy for automated injection. Thus, electronic injection is a great advance and changes the state-of-art of µTEDs, mainly considering the use of more modern and versatile electronic pipettes (wider range of pre-programmed modes), which can lead to the development of even more automated systems.
Collapse
Affiliation(s)
- Natália Canhete de Moraes
- Institute of Chemistry, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil
| | - Rayan Marcel Carvalho
- Institute of Chemistry, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil
| | - Valdir Souza Ferreira
- Institute of Chemistry, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil
| | | | - Edmar Isaias de Melo
- Institute of Chemistry, Federal University of Uberlândia, Monte Carmelo, MG, 38500-000, Brazil
| | | | - Bruno Gabriel Lucca
- Institute of Chemistry, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil.
| |
Collapse
|
7
|
Cieślik M, Susik A, Banasiak M, Bogdanowicz R, Formela K, Ryl J. Tailoring diamondised nanocarbon-loaded poly(lactic acid) composites for highly electroactive surfaces: extrusion and characterisation of filaments for improved 3D-printed surfaces. Mikrochim Acta 2023; 190:370. [PMID: 37639048 PMCID: PMC10462739 DOI: 10.1007/s00604-023-05940-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/30/2023] [Indexed: 08/29/2023]
Abstract
A new 3D-printable composite has been developed dedicated to electroanalytical applications. Two types of diamondised nanocarbons - detonation nanodiamonds (DNDs) and boron-doped carbon nanowalls (BCNWs) - were added as fillers in poly(lactic acid) (PLA)-based composites to extrude 3D filaments. Carbon black served as a primary filler to reach high composite conductivity at low diamondised nanocarbon concentrations (0.01 to 0.2 S/cm, depending on the type and amount of filler). The aim was to thoroughly describe and understand the interactions between the composite components and how they affect the rheological, mechanical and thermal properties, and electrochemical characteristics of filaments and material extrusion printouts. The electrocatalytic properties of composite-based electrodes, fabricated with a simple 3D pen, were evaluated using multiple electrochemical techniques (cyclic and differential pulse voltammetry and electrochemical impedance spectroscopy). The results showed that the addition of 5 wt% of any of the diamond-rich nanocarbons fillers significantly enhanced the redox process kinetics, leading to lower redox activation overpotentials compared with carbon black-loaded PLA. The detection of dopamine was successfully achieved through fabricated composite electrodes, exhibiting lower limits of detection (0.12 μM for DND and 0.18 μM for BCNW) compared with the reference CB-PLA electrodes (0.48 μM). The thermogravimetric results demonstrated that both DND and BCNW powders can accelerate thermal degradation. The presence of diamondised nanocarbons, regardless of their type, resulted in a decrease in the decomposition temperature of the composite. The study provides insight into the interactions between composite components and their impact on the electrochemical properties of 3D-printed surfaces, suggesting electroanalytic potential.
Collapse
Affiliation(s)
- Mateusz Cieślik
- Department of Analytical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland.
- Division of Electrochemistry and Surface Physical Chemistry, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Agnieszka Susik
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Mariusz Banasiak
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunication and Informatics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Robert Bogdanowicz
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunication and Informatics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Krzysztof Formela
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Jacek Ryl
- Division of Electrochemistry and Surface Physical Chemistry, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gabriela Narutowicza 11/12, 80-233, Gdańsk, Poland.
| |
Collapse
|
8
|
Sun Y, Li D, Shi Y, Wang Z, Okeke SI, Yang L, Zhang W, Zhang Z, Shi Y, Xiao L. Application of 3D Printing Technology in Sensor Development for Water Quality Monitoring. SENSORS (BASEL, SWITZERLAND) 2023; 23:2366. [PMID: 36904570 PMCID: PMC10007434 DOI: 10.3390/s23052366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The development of sensors for water quality monitoring is crucial to protect water quality, aquatic biota and human health. Traditional sensor manufacturing methods have significant drawbacks, such as low fabrication freedom, limited material choice and expensive manufacturing cost. As a possible alternative method, 3D printing technologies are increasingly popular in sensor development due to their high versatility, fast fabrication/modification, powerful processing of different materials and ease of incorporation with other sensor systems. Surprisingly, a systematic review examining the application of 3D printing technology in water monitoring sensors has not yet been conducted. Here, we summarized the development history, market share and advantages/disadvantages of typical 3D printing techniques. Specifically focused on the 3D-printed sensor for water quality monitoring, we then reviewed the applications of 3D printing in the development of sensors' supporting platform, cell, sensing electrode as well as all-3D-printed sensors. The fabrication materials and processing, and the sensor's performances regarding detected parameters, response time and detection limit/sensitivity, were also compared and analyzed. Finally, the current drawbacks of 3D-printed water sensors and potential directions for future study were discussed. This review will substantially promote the understanding of 3D printing technology used in water sensor development and benefit the protection of water resources.
Collapse
Affiliation(s)
- Yifan Sun
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Dunzhu Li
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Yunhong Shi
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Zeena Wang
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Saviour I. Okeke
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Luming Yang
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Wen Zhang
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Zihan Zhang
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Yanqi Shi
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
| | - Liwen Xiao
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, Ireland
- TrinityHaus, Trinity College Dublin, D02 PN40 Dublin, Ireland
| |
Collapse
|
9
|
Guembe-García M, González-Ceballos L, Arnaiz A, Fernández-Muiño MA, Sancho MT, Osés SM, Ibeas S, Rovira J, Melero B, Represa C, García JM, Vallejos S. Easy Nitrite Analysis of Processed Meat with Colorimetric Polymer Sensors and a Smartphone App. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37051-37058. [PMID: 35920554 PMCID: PMC9389542 DOI: 10.1021/acsami.2c09467] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We have developed an in situ methodology for determining nitrite concentration in processed meats that can also be used by unskilled personnel. It is based on a colorimetric film-shaped sensory polymer that changes its color upon contacting the meat and a mobile app that automatically calculates the manufacturing and residual nitrite concentration by only taking digital photographs of sensory films and analyzing digital color parameters. The film-shaped polymer sensor detects nitrite anions by an azo-coupling reaction, since they activate this reaction between two of the four monomers that the copolymer is based on. The sensory polymer is complemented with an app, which analyzes the color in two different digital color spaces (RGB and HSV) and performs a set of 32 data fittings representing the concentration of nitrite versus eight different variables, finally providing the nitrite concentration of the test samples using the best fitting curve. The calculated concentration of nitrite correlates with a validated method (ISO 2918: 1975) usually used to determine nitrite, and no statistically significant difference between these methods and our proposed one has been found in our study (26 meat samples, 8 prepared, and 18 commercial). Our method represents a great advance in terms of analysis time, simplicity, and orientation to use by average citizens.
Collapse
Affiliation(s)
- Marta Guembe-García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Lara González-Ceballos
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Ana Arnaiz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
- Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Miguel A Fernández-Muiño
- Departamento de Biotecnología y Ciencia de los Alimentos, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - M Teresa Sancho
- Departamento de Biotecnología y Ciencia de los Alimentos, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Sandra M Osés
- Departamento de Biotecnología y Ciencia de los Alimentos, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Saturnino Ibeas
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Jordi Rovira
- Departamento de Biotecnología y Ciencia de los Alimentos, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Beatriz Melero
- Departamento de Biotecnología y Ciencia de los Alimentos, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Cesar Represa
- Departamento de Ingeniería Electromecánica, Escuela Politécnica Superior, Universidad de Burgos, Avenida Cantabria s/n, 09006 Burgos, Spain
| | - José M García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Saúl Vallejos
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| |
Collapse
|
10
|
Bhaiyya M, Pattnaik PK, Goel S. Multiplexed and simultaneous biosensing in a 3D-printed portable six-well smartphone operated electrochemiluminescence standalone point-of-care platform. Mikrochim Acta 2022; 189:79. [DOI: 10.1007/s00604-022-05200-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 01/24/2022] [Indexed: 01/25/2023]
|