Sustainable mold biomachining for the manufacturing of microfluidic devices

Santaolalla, Arrate; Alvarez-Braña, Yara; Basabe‐Desmonts, Lourdes; Benito‐Lopez, Fernando; Barona, Astrid

doi:10.1016/j.jiec.2022.12.040

Cited by 8 publications

(3 citation statements)

References 42 publications

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“…First, 100 μL of the bacterial inoculum was introduced into 20 mL of 9K medium, and the coatings were immersed into bacterial solution. Then, the samples were incubated at 130 rpm and 31 °C. , The leaching of iron from the NiFeP-5 coating was investigated by varying the time period. After preliminary studies, 24, 72, and 120 h were fixed as the time periods for bioleaching.…”

Section: Methodsmentioning

confidence: 99%

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Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation

Anil,

Bhagya,

Bijimol

et al. 2024

ACS Appl. Mater. Interfaces

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In the quest for sustainable hydrogen production via water electrolysis, the development of high-performance, noble-metal-free catalytic systems is highly desired. Herein, we proposed an innovative strategy for the development of an electrocatalyst by refining the surface characteristics of a NiFeP alloy through microbiological techniques and subsequent enrichment of active sites by tailoring 3D hierarchical flower-like structures with intact and interconnected two-dimensional (2D) Co 3 O 4 . The resultant 3D Co 3 O 4 @NiFeP-5/24h has a porous structure comprised of intercrossed nanoparticles covering the entirety of the catalytic surface. This design ensures comprehensive electrolyte ion penetration and facilitates the release of gas bubbles while reducing bubble adhesion rates. Remarkably, the Co 3 O 4 @NiFeP-5/24h electrode demonstrates superior hydrogen evolution (HER) performance in an alkaline medium, characterized by its high stability, low overpotential (106 mV at a current density of 10 mA cm −2 ), and reduced Tafel slope (98 mV dec −1 ). Besides, the minimized interfacial contact resistance among the phases of electrode and electrolyte emphasizes the high HER performance of the 3D Co 3 O 4 @NiFeP-5/24h electrode. The innovative design and fabrication strategy employed herein holds significant potential for advancing the field of water-splitting electrocatalysis, offering a promising path toward the rational design and development of noblemetal-free electrocatalysts.

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Section: Methodsmentioning

confidence: 99%

“…Then, the samples were incubated at 130 rpm and 31 °C. 33,34 The leaching of iron from the NiFeP-5 coating was investigated by varying the time period. After preliminary studies, 24, 72, and 120 h were fixed as the time periods for bioleaching.…”

Section: Etching Of Iron and Decoration Of Cobaltmentioning

confidence: 99%

Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation

Anil,

Bhagya,

Bijimol

et al. 2024

ACS Appl. Mater. Interfaces

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“…FeSO 4 cannot be sterilized by autoclaving due to its instability at high temperatures, which further increases the complexity of sterilization. According to previous reports, − manufacturing is the most widely used application of biomachining. However, most of the manufacturers do not have an understanding of A.…”

Section: Introductionmentioning

confidence: 99%

Simplification of the Acidithiobacillus ferrooxidans Culture Process for Expanding the Field of Biomachining

Ma,

Zheng,

Huang

et al. 2024

ACS Omega

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Biomachining is an eco-friendly metal processing method with broad application potential. Nevertheless, the bacterial culture methods that are currently involved in biomachining require the intensive use of chemical reagents, especially FeSO 4 , specialized equipment, and professional-level skills in the field of biology. Herein, the differences between two cultures with and without sterilization were evaluated. Acidithiobacillus ferrooxidans was cultured with iron instead of FeSO 4 in the culture medium. The chemical and biochemical parameters of the culture were analyzed by studying the area of exposed iron and continuously regulating the pH. Eliminating the sterilization and sterile inoculation of the medium is feasible for culturing A. ferrooxidans. The key to achieving a high bacterial density in culture with iron was to maintain the solution pH. The possibility of mass culturing A. ferrooxidans with steel cuttings was evaluated in a custom bioreactor, and the bacterial concentration reached 9 × 10 7 cells/mL.

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Microfluidic devices for the detection of pesticide residues

Murugesan

Raj

Moses

2023

Rev Environ Sci Biotechnol

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Sustainable mold biomachining for the manufacturing of microfluidic devices

Cited by 8 publications

References 42 publications

Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation

Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation

Simplification of the Acidithiobacillus ferrooxidans Culture Process for Expanding the Field of Biomachining

Microfluidic devices for the detection of pesticide residues

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Sustainable mold biomachining for the manufacturing of microfluidic devices

Cited by 8 publications

References 42 publications

Architectural Decoration of Bioleached NiFeP Surfaces by Co3O4 Flowers for Efficient Electrocatalytic Hydrogen Generation

Architectural Decoration of Bioleached NiFeP Surfaces by Co3O4 Flowers for Efficient Electrocatalytic Hydrogen Generation

Simplification of the Acidithiobacillus ferrooxidans Culture Process for Expanding the Field of Biomachining

Microfluidic devices for the detection of pesticide residues

Contact Info

Product

Resources

About

Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation

Architectural Decoration of Bioleached NiFeP Surfaces by Co₃O₄ Flowers for Efficient Electrocatalytic Hydrogen Generation