3D-printing pen versus desktop 3D-printers: Fabrication of carbon black/polylactic acid electrodes for single-drop detection of 2,4,6-trinitrotoluene

Cardoso, Rafael M.; Rocha, Diego P.; Rocha, Raquel G.; Stefano, Jéssica S.; Silva, Rodrigo A.B.; Richter, Eduardo M.; Muñoz, Rodrigo A.A.

doi:10.1016/j.aca.2020.07.034

Cited by 46 publications

(30 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 3D pen was applied to fill the top part of the electrode with a conductive filament (G/PLA from Black Magic) covering the copper wire. The melted filament sets within a few seconds after application; this step takes less than a minute. , …”

Section: Methodsmentioning

confidence: 99%

“…The 3D-printed electrode was produced as described by Cardoso and coauthors. 31 The acrylic customized cylinder (3.5 cm length × 3.8 mm diameter) of the working electrode was produced using a Photon digital UV light processing 3D printer (ANYCUBIC Co. Ltd., Shenzhen, China) employing curable acrylic resins and a 3D pen (GTMAX3D Ltda, Americana-SP, Brazil). The conductive filament Black Magic was obtained from Enterprise (Paulina, Brazil).…”

Section: ■ Experimental Proceduresmentioning

confidence: 99%

“…The melted filament sets within a few seconds after application; this step takes less than a minute. 31,36 Electrochemical Electrode Activation. First, the 3D-printed electrode surface was polished in a moistened sandpaper of 1200 grift.…”

Section: ■ Experimental Proceduresmentioning

confidence: 99%

“…Additive manufacturing can be considered a green manufacturing tool as the amount of raw material used is rationalized to the fabrication of the final object, which is a great advantage over subtractive manufacturing considering sustainability; if the raw material is a polymer, typical example of the most popular 3D printers, the use of biopolymers (biodegradable and obtained from renewable sources), such as polylactic acid (PLA), is crucial to attend the principles of green chemistry. , Electrodes manufactured using 3D printers or 3D pens offer many advantages, such as low cost (each electrode costs $0.10 and the 3D pen less than $25.00), freedom of design, robustness, reproducibility, ease of operation, and portability. 3D pens consist of a handheld fused deposition modeling printer of 3D objects at which a thermoplastic printing filament is similarly extruded by a heated nozzle resulting in a final 3D object that is formed after solidification.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Environmentally Friendly Three-Dimensional Printed Graphene-Integrated Polylactic Acid Electrochemical Sensor for the Quality Control of Biofuels

João

Matias

Gomes

et al. 2021

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

Additively manufactured sensors have shown promising features regarding sustainability, because of the reduction of waste, feasible use of biopolymers, the fabrication process, and large-scale production. Graphene-integrated polylactic acid (G/PLA) is an excellent material to three-dimensional (3D)-print electrochemical sensors with outstanding stability, robustness, and sensitivity. Herein, we propose 3D-printed G/PLA electrochemical sensors to the monitoring of quality control of biodiesel and/or biokerosene, which have been widely demanded worldwide to replace fossil fuels. The main drawback of such biofuels is their oxidation instability, which can be controlled by the monitoring of additive antioxidants added to retard oxidation processes. This is the first application of a 3D-printed sensor for such biofuels, and as a proof-of-concept, we demonstrate that these sensors can determine tert-butylhydroquinone (TBHQ), the most used antioxidant in biofuels, in soybean biodiesel and coconut biokerosene. TBHQ is electrochemically oxidized at +0.3 V (vs Ag|AgCl|KCl(sat.)), and a microliter aliquot of the samples was diluted in 0.12 mol L–1 Britton–Robinson solution (pH 4.05) containing sodium dodecyl sulfate to stabilize the emulsion before the voltammetric measurement. An STL 3D printer and a 3D pen were used to fabricate the sensors in a cylindrical shape (3.5 cm length × 0.4 cm diameter). After selecting optimal parameters, the sensor presented a linear range up to 400 μmol L–1 (r > 0.99) and a detection limit estimated as 0.1 μmol L–1. High precision was attested by relative standard deviation values lesser than 5% (interday and interelectrode measures). The metallic species Fe3+, Pb2+, Cu2+, Mn2+, and Cr2+, which can be found because of corrosion of metallic parts by the action of storing and transporting biofuels, did not statistically interfere (t tab = 1.833 > t cal = 0.114) in the determination of TBHQ. The analysis of samples spiked with TBHQ resulted in recovery values that ranged from 86 to 105%. A commercial biodiesel sample was analyzed by both the proposed and high-performance liquid chromatography methods, and the results were statistically similar. Importantly, the sensor was compatible with biofuels, and its surface can be renewed after polishing for its continuous use for routine applications.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: ■ Experimental Proceduresmentioning

confidence: 99%

Section: ■ Experimental Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Environmentally Friendly Three-Dimensional Printed Graphene-Integrated Polylactic Acid Electrochemical Sensor for the Quality Control of Biofuels

João

Matias

Gomes

et al. 2021

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

show abstract

“…A 3D printer is a computer-aided manufacturing device that creates three-dimensional objects by joining or solidifying custom materials [1,2]. Recent advancements in 3D manufacturing, namely 3D printing or additive manufacturing and the development of new material and process optimization, have brought a new paradigm of manufacturing in nearly all disciplines in science and engineering subjects [2,3]. Three-dimensional printers these days have been widely spread to academics and end-users or public consumers.…”

Section: Introductionmentioning

confidence: 99%

Thermoplastics and Photopolymer Desktop 3D Printing System Selection Criteria Based on Technical Specifications and Performances for Instructional Applications

Joe

Song

2021

Technologies

View full text Add to dashboard Cite

With the advancement of additive manufacturing technologies in their material processing methodologies and variety of material selection, 3D printers are widely used in both academics and industries for various applications. It is no longer rare to have a portable and small desktop 3D printer and manufacture your own designs in a few hours. Desktop 3D printers vary in their functions, prices, materials used, and applications. Among many desktop 3D printers with various features, it is often challenging to select the best one for target applications and usages. In this paper, commercially available and carefully selected thermoplastic and photopolymer desktop 3D printers are introduced, and some representative models’ specifications and performances are compared with each other for user selection with respect to instructional applications. This paper aims to provide beginner-level or advanced-level end-users of desktop 3D printers with basic knowledge, selection criteria, a comprehensive overview of 3D printing technologies, and their technical features, helping them to evaluate and select the right 3D printers for a wide range of applications.

show abstract

Composites

Gupta¹,

Kumawat²,

Ghosh³

et al. 2022

Poly(Lactic Acid)

View full text Add to dashboard Cite

3D-printing pen versus desktop 3D-printers: Fabrication of carbon black/polylactic acid electrodes for single-drop detection of 2,4,6-trinitrotoluene

Cited by 46 publications

References 38 publications

An Environmentally Friendly Three-Dimensional Printed Graphene-Integrated Polylactic Acid Electrochemical Sensor for the Quality Control of Biofuels

An Environmentally Friendly Three-Dimensional Printed Graphene-Integrated Polylactic Acid Electrochemical Sensor for the Quality Control of Biofuels

Thermoplastics and Photopolymer Desktop 3D Printing System Selection Criteria Based on Technical Specifications and Performances for Instructional Applications

Composites

Contact Info

Product

Resources

About