Self-Adhesive Mask and Homemade Carbon Ink: Turning Unusable Screen-Printed Electrodes into a New Voltammetric Sensor Gabriel Chitolina-Rodrigues, Adriano Rogerio Silva Lima, Duane Bortot, Caio Raphael Vanoni, Cristiane Luisa Jost, Habdias de Araujo Silva-Neto ACS Omega, 2026 High Resolution Image Download MS PowerPoint Slide Screen-printed carbon electrodes (SPCEs) are widely employed in sensing due to their low cost, especially the model DRP-110. However, their disposable nature limits their long-term applications. In this work, we present a sustainable methodology for recovering the electrode model DRP-110-U75. Unusable SPCEs were made usable again after employing a stencil-printing approach. After recuperating the electrodes (Re-SPCE), characterization experiments upon the Re-SPCEs have indicated similar morphological aspects and catalytic ability when compared to as-purchased SPCEs. As a proof of concept, voltammetric analysis of dopamine (DOP) in artificial urine and tryptophan (TRP) in supplement capsules was successfully employed, exhibiting limits of detection of 2.15 and 0.2 μmol L –1 for DOP and TRP, respectively. These results confirm that the proposed method can extend the life cycle of SPCEs.
Drone- and Paper-Based Analytical Devices: A Powerful Combination for the Colorimetric Detection of Tropospheric Ozone Pedro P. E. Campos, Habdias A. Silva-Neto, Lucas C. Duarte, João Flávio da Silveira Petruci, Wendell K. T. Coltro Analytical Chemistry, 2025 of 0.996, and a limit of detection of approximately 0.25 mg. A customized holder was fabricated by 3D printing to ensure the attachment of PADs on the aerial drone platform. The system successfully monitored tropospheric ozone levels, recording 6.8 ± 0.7 mg during the dry season and 0.9 ± 0.1 mg during wet periods, with an in-flight sampling time of just 120 s. This innovative system has great potential to advance environmental monitoring, offering a portable, low-cost solution for remote and real-time ozone detection.
Recent advances in screen-printed carbon electrodes for food additive analysis Gabriel Chitolina-Rodrigues, Devu Chandran, Rejithamol R., Habdias A. Silva-Neto Analytical Methods, 2025 Screen-printed carbon electrode is a option of analytical device for additive analysis in food samples; however, the sample preparation, selectivity, and detectability are key challenges to overcome.
Screen-Printing vs Additive Manufacturing Approaches: Recent Aspects and Trends Involving the Fabrication of Electrochemical Sensors Luiz O. Orzari, Cristiane Kalinke, Habdias A. Silva-Neto, Danielly S. Rocha, Jéssica R. Camargo, Wendell K.T. Coltro, Bruno C. Janegitz Analytical Chemistry, 2025 A few decades ago, the technological boom revolutionized access to information, ushering in a new era of research possibilities. Electrochemical devices have recently emerged as a key scientific advancement utilizing electrochemistry principles to detect various chemical species. These versatile electrodes find applications in diverse fields, such as healthcare diagnostics and environmental monitoring. Modern designs have given rise to innovative manufacturing protocols, including screen and additive printing methods, for creating sophisticated 2D and 3D electrochemical devices. This perspective provides a comprehensive overview of the screen-printing and additive-printing protocols for constructing electrochemical devices. It is also informed that screen-printed sensors offer cost-effectiveness and ease of fabrication, although they may pose challenges due to the use of toxic volatile inks and limited design flexibility. On the other hand, additive manufacturing, especially the fused filament fabrication (or fused deposition modeling) strategies, allows for intricate three-dimensional sensor designs and rapid prototyping of customized equipment. However, the post-treatment processes and material selection can affect production costs. Despite their unique advantages and limitations, both printing techniques show promise for various applications, driving innovation in the field toward more advanced sensor designs. Finally, these advancements pave the way for improved sensor performance and expand possibilities for academic, environmental, and industrial applications. The future is full of exciting opportunities for state-of-the-art sensor technologies that will further improve our ability to detect and determine various substances in a wide range of environments as researchers continue to explore the many possibilities of electrochemical devices.
Hybrid Paper/Polyester-Based Laser-Induced Graphene Electrodes for Electrochemical Detection of Tadalafil Shellyda G. G. Souza, Habdias A. Silva‐Neto, Danielly S. Rocha, Abner de Siervo, Thiago R. L. C. Paixão, Wendell K. T. Coltro Analysis and Sensing, 2024 Here, we describe for the first time the fabrication of laser‐induced graphene (LIG) electrodes on a hybrid substrate composed of sandpaper and polyester. As a proof of concept, the proposed device was used as a voltammetric sensor for tadalafil (TAD) quantification in authentic tablet samples. The electrochemical TAD sensing based on differential pulse voltammetry (DPV) revealed a linear behavior in the concentration range from 25 to 250 μmol L−1(R2=0.99), a limit of detection of ~9.6 μmol L−1, sensitivity of ~0.0048 μA(μmol L−1)−1 and acceptable reproducibility values (RSD≤5.8 %). The DPV responses involving the standard addition method in pharmaceutical samples presented recovery results of TAD ranging from 93 to 108 %. Also, the proposed analytical method offered a suitable green analytical chemistry profile. We successfully demonstrated the fabrication of graphene‐like sites and nanoparticles composed of alumina upon a hybrid substrate.
Recent advances on paper-based microfluidic devices for bioanalysis Habdias A. Silva-Neto, Iana V.S. Arantes, André L. Ferreira, Guida H.M. do Nascimento, Gabriel N. Meloni, William R. de Araujo, Thiago R.L.C. Paixão, Wendell K.T. Coltro Trac Trends in Analytical Chemistry, 2023
Different approaches for fabrication of low-cost electrochemical sensors Jéssica Santos Stefano, Luiz Otávio Orzari, Habdias Araujo Silva-Neto, Vanessa Neiva de Ataíde, Letícia Francine Mendes, Wendell Karlos Tomazelli Coltro, Thiago Regis Longo Cesar Paixão, Bruno Campos Janegitz Current Opinion in Electrochemistry, 2022
Wearable hybrid sensors Pedro V.V. Romanholo, Habdias A. Silva-Neto, Lívia F. Sgobbi, Wendell K.T. Coltro Wearable Physical Chemical and Biological Sensors Fundamentals Materials and Applications, 2022
Sensing Materials: Paper Substrates Lucas R. Sousa, Habdias A. Silva-Neto, Nikaele S. Moreira, Bárbara G.S. Guinati, Wendell K.T. Coltro Encyclopedia of Sensors and Biosensors Volume 1 4 First Edition, 2022
Sensing Materials: Paper Substrates Lucas R. Sousa, Habdias A. Silva-Neto, Nikaele S. Moreira, Bárbara G.S. Guinati, Wendell K.T. Coltro Encyclopedia of Sensors and Biosensors First Edition Four Volume Set, 2022
Colorimetric paper-based analytical devices Habdias A. Silva-Neto, Lucas R. Sousa, Wendell K.T. Coltro Paper Based Analytical Devices for Chemical Analysis and Diagnostics, 2021
Self-Adhesive Mask and Homemade Carbon Ink: Turning Unusable Screen-Printed Electrodes into a New Voltammetric Sensor G Chitolina-Rodrigues, ARS Lima, D Bortot, CR Vanoni, CL Jost, ... ACS omega , 2026 2026
Electrochemical Quantification of Nifedipine and Monitoring of Light-Induced Degradation Using Screen-Printed Carbon Electrodes G Chitolina-Rodrigues, D Bortot, ARS Lima, NB Guedes, CR Vanoni, ... Electrochimica Acta, 147999 , 2025 2025 Citations: 1
Exploration and advances in enzymatic electrochemical biosensors for in vivo detection of brain glutamate RR R. Divya Mohan, Shashanka Rajendrachari, HA Silva-Neto, A. Santhy Bioelectrochemistry 168, 109161 , 2025 2025 Citations: 2
Electrochemical sensing of cannabidiol in pharmaceutical dosage forms using modification-free carbon-based electrodes: A voltammetric approach for on-site detection ARS Lima, G Chitolina-Rodrigues, SVS Dória, DDR Grundmann, ... Electrochimica Acta, 147291 , 2025 2025 Citations: 2
Drone-and Paper-Based Analytical Devices: A Powerful Combination for the Colorimetric Detection of Tropospheric Ozone PPE Campos, HA Silva-Neto, LC Duarte, JFS Petruci, WKT Coltro Analytical Chemistry 97 (29), 15818-15825 , 2025 2025 Citations: 4
Analytical Methods R Rejithamol, HA Silva-Neto 2025
Recent developments on aerial lab-on-a-drone platforms for remote environmental monitoring: A review HA Silva-Neto, D da Silva Sousa, LC Duarte, JF da Silveira Petruci, ... Analytica Chimica Acta, 343544 , 2025 2025 Citations: 21
Screen-printing vs additive manufacturing approaches: recent aspects and trends involving the fabrication of electrochemical sensors LO Orzari, C Kalinke, HA Silva-Neto, DS Rocha, JR Camargo, WKT Coltro, ... Analytical chemistry 97 (3), 1482-1494 , 2025 2025 Citations: 73
Recent advances in screen-printed carbon electrodes for food additive analysis G Chitolina-Rodrigues, D Chandran, R R, HA Silva-Neto Analytical Methods , 2025 2025 Citations: 3
Biodegradable and sustainable Sensors: Material and Applications HA Silva-Neto, DS Rocha, LKA Souza, WKT Coltro Nature-Derived Sensors: Basic Principles and Recent Advances 1, eBook ISBN … , 2025 2025 Citations: 3
3D printing of electrochemical cell for voltammetric detection and photodegradation monitoring of folic acid in juice samples HA Silva-Neto, PJS Barbeira, WKT Coltro, E Piccin Food Chemistry 444, 138677 , 2024 2024 Citations: 15
Recent achievements of greenness metrics on paper-based electrochemical (bio) sensors for environmental and clinical analysis HA Silva-Neto, LF De Lima, DS Rocha, VN Ataide, GN Meloni, G Moro, ... TrAC Trends in Analytical Chemistry 174, 117675 , 2024 2024 Citations: 36
Película de vidro como substrato para fabricação de trilhas condutoras, circuitos eletrônicos e sensores eletroquímicos MML PEREIRA, HA SILVA-NETO, DS ROCHA, WKT COLTRO 2024
Fabrication of paper-based analytical devices using stencil-printed glass varnish barriers for colorimetric detection of salivary α-amylase HA Silva-Neto, JC Jaime, DS Rocha, LF Sgobbi, WKT Coltro Analytica Chimica Acta 1297, 342336 , 2024 2024 Citations: 20
Digitally controlled printing of bioink barriers for paper-based analytical devices: An environmentally friendly one-step approach PVV Romanholo, LM de Andrade, HA Silva-Neto, WKT Coltro, LF Sgobbi Analytical Chemistry 96 (14), 5349-5356 , 2024 2024 Citations: 10
Disposable and eco-friendly electrochemical immunosensor for rapid detection of SARS-CoV-2 DS Rocha, TA Baldo, HA Silva-Neto, GF Duarte-Junior, GS Bazilio, ... Talanta 268, 125337 , 2024 2024 Citations: 23
Manufatura aditiva circular: utilizando e reciclando materiais termoplásticos para desenvolver sensores analíticos Silva Neto, H de Araujo 2024
Hybrid Paper/Polyester‐Based Laser‐Induced Graphene Electrodes for Electrochemical Detection of Tadalafil SGG Souza, HA Silva-Neto, DS Rocha, A de Siervo, TRLC Paixão, ... Analysis & Sensing, e202400016 , 2024 2024 Citations: 3
AirQuality Lab-on-a-Drone: A Low-Cost 3D-Printed Analytical IoT Platform for Vertical Monitoring of Gaseous H 2 S VG Leal, HA Silva-Neto, SG da Silva, WKT Coltro, JFS Petruci Analytical chemistry 95 (38), 14350-14356 , 2023 2023 Citations: 16
Preliminary assessment of toxicity of aerosol samples from central-west Brazil using Artemia spp. bioassays HA Silva-Neto, V Zucolotto, EB D'Alessandro, MGO Tavares, ... Chemosphere 336, 139283 , 2023 2023
MOST CITED SCHOLAR PUBLICATIONS
Recent advances on paper-based microfluidic devices for bioanalysis HA Silva-Neto, IVS Arantes, AL Ferreira, GHM do Nascimento, GN Meloni, ... TrAC Trends in Analytical Chemistry, 116893 , 2023 2023 Citations: 129
Screen-printing vs additive manufacturing approaches: recent aspects and trends involving the fabrication of electrochemical sensors LO Orzari, C Kalinke, HA Silva-Neto, DS Rocha, JR Camargo, WKT Coltro, ... Analytical chemistry 97 (3), 1482-1494 , 2025 2025 Citations: 73
Fully 3D printing of carbon black-thermoplastic hybrid materials and fast activation for development of highly stable electrochemical sensors HA Silva-Neto, M Santhiago, LC Duarte, WKT Coltro Sensors and Actuators B: Chemical 349, 130721 , 2021 2021 Citations: 73
3D printing of compact electrochemical cell for sequential analysis of steroid hormones LC Duarte, TA Baldo, HA Silva-Neto, F Figueredo, BC Janegitz, ... Sensors and Actuators B: Chemical 364, 131850 , 2022 2022 Citations: 60
Plug-and-play assembly of paper-based colorimetric and electrochemical devices for multiplexed detection of metals HA Silva-Neto, TMG Cardoso, CJ McMahon, LF Sgobbi, CS Henry, ... Analyst 146 (11), 3463-3473 , 2021 2021 Citations: 53
Environmentally friendly manufacturing of flexible graphite electrodes for a wearable device monitoring zinc in sweat AA Dias, CLS Chagas, HA Silva-Neto, EO Lobo-Junior, LF Sgobbi, ... ACS applied materials & interfaces 11 (43), 39484-39492 , 2019 2019 Citations: 48
Sandpaper-based electrochemical devices assembled on a reusable 3D-printed holder to detect date rape drug in beverages DS Rocha, LC Duarte, HA Silva-Neto, CLS Chagas, MHP Santana, ... Talanta 232, 122408 , 2021 2021 Citations: 47
3D-printed electrochemical platform with multi-purpose carbon black sensing electrodes HA Silva-Neto, AA Dias, WKT Coltro Microchimica Acta 189 (6), 235 , 2022 2022 Citations: 45
“Do it yourself” protocol to fabricate dual-detection paper-based analytical device for salivary biomarker analysis LR Sousa, HA Silva-Neto, LF Castro, KA Oliveira, F Figueredo, E Cortón, ... Analytical and Bioanalytical Chemistry 415 (18), 4391-4400 , 2023 2023 Citations: 44
Recycling 3D printed residues for the development of disposable paper-based electrochemical sensors HA Silva-Neto, GF Duarte-Junior, DS Rocha, F Bedioui, A Varenne, ... ACS applied materials & interfaces 15 (11), 14111-14121 , 2023 2023 Citations: 40
Recent achievements of greenness metrics on paper-based electrochemical (bio) sensors for environmental and clinical analysis HA Silva-Neto, LF De Lima, DS Rocha, VN Ataide, GN Meloni, G Moro, ... TrAC Trends in Analytical Chemistry 174, 117675 , 2024 2024 Citations: 36
Disposable Stencil-Printed Carbon Electrodes for Electrochemical Analysis of Sildenafil Citrate in Commercial and Adulterated Tablets DS Rocha, HA Silva-Neto, LC de Oliveira, SGG Souza, MHP Santana, ... Braz. J. Anal. Chem, 8 , 2022 2022 Citations: 25
Disposable sensor based on carbon electrodes modified with cobalt-doped titanium dioxide nanocrystals for electrochemical detection of amoxicillin LKA Souza, HA Silva-Neto, DS Rocha, FC de Abreu, ACA Silva, ... Journal of Electroanalytical Chemistry 942, 117587 , 2023 2023 Citations: 24
Disposable and eco-friendly electrochemical immunosensor for rapid detection of SARS-CoV-2 DS Rocha, TA Baldo, HA Silva-Neto, GF Duarte-Junior, GS Bazilio, ... Talanta 268, 125337 , 2024 2024 Citations: 23
Recent developments on aerial lab-on-a-drone platforms for remote environmental monitoring: A review HA Silva-Neto, D da Silva Sousa, LC Duarte, JF da Silveira Petruci, ... Analytica Chimica Acta, 343544 , 2025 2025 Citations: 21
Silicone glue-based graphite ink incorporated on paper platform as an affordable approach to construct stable electrochemical sensors LF Castro, HA Silva-Neto, LR Sousa, WR de Araujo, WKT Coltro Talanta 251, 123812 , 2023 2023 Citations: 21
Fabrication of paper-based analytical devices using stencil-printed glass varnish barriers for colorimetric detection of salivary α-amylase HA Silva-Neto, JC Jaime, DS Rocha, LF Sgobbi, WKT Coltro Analytica Chimica Acta 1297, 342336 , 2024 2024 Citations: 20
AirQuality Lab-on-a-Drone: A Low-Cost 3D-Printed Analytical IoT Platform for Vertical Monitoring of Gaseous H 2 S VG Leal, HA Silva-Neto, SG da Silva, WKT Coltro, JFS Petruci Analytical chemistry 95 (38), 14350-14356 , 2023 2023 Citations: 16
Lead toxicity in Lucilia cuprina and electrochemical analysis: a simple and low-cost alternative for forensic investigation. BGO Bessa, HA Silva-Neto, WKT Coltro, TL Rocha, WR Lopes Analytical & Bioanalytical Chemistry 413 (12), 3201 , 2021 2021 Citations: 16
3D printing of electrochemical cell for voltammetric detection and photodegradation monitoring of folic acid in juice samples HA Silva-Neto, PJS Barbeira, WKT Coltro, E Piccin Food Chemistry 444, 138677 , 2024 2024 Citations: 15