Biofuel production, hydrogen production and water remediation by photocatalysis, biocatalysis and electrocatalysis

Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 21(3), P. 1315 - 1379

Published: March 10, 2023

Abstract The energy crisis and environmental pollution have recently fostered research on efficient methods such as catalysis to produce biofuel clean water. Environmental refers green catalysts used breakdown pollutants or chemicals without generating undesirable by-products. For example, derived from waste inexpensive materials are promising for the circular economy. Here we review photocatalysis, biocatalysis, electrocatalysis, with focus catalyst synthesis, structure, applications. Common include biomass-derived materials, metal–organic frameworks, non-noble metals nanoparticles, nanocomposites enzymes. Structure characterization is done by Brunauer–Emmett–Teller isotherm, thermogravimetry, X-ray diffraction photoelectron spectroscopy. We found that water can be degraded an efficiency ranging 71.7 100%, notably heterogeneous Fenton catalysis. Photocatalysis produced dihydrogen (H 2 ) generation rate higher than 100 μmol h −1 . Dihydrogen yields ranged 27 88% methane cracking. Biodiesel production reached 48.6 99%.

Language: Английский

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Enzyme Immobilization and Co-Immobilization: Main Framework, Advances and Some Applications

Processes, Journal Year: 2022, Volume and Issue: 10(3), P. 494 - 494

Published: March 1, 2022

Enzymes are outstanding (bio)catalysts, not solely on account of their ability to increase reaction rates by up several orders magnitude but also for the high degree substrate specificity, regiospecificity and stereospecificity. The use development enzymes as robust biocatalysts is one main challenges in biotechnology. However, despite specificities turnover enzymes, there drawbacks. At industrial level, these drawbacks typically overcome resorting immobilized enhance stability. Immobilization allows reuse, increases stability, facilitates process control, eases product recovery, enhances yield quality. This especially important expensive those obtained low fermentation with relatively activity. review provides an integrated perspective (multi)enzyme immobilization that abridges a critical evaluation methods carriers, biocatalyst metrics, impact key carrier features performance, trends towards miniaturization detailed illustrative examples representative biocatalytic applications promoting sustainability.

Language: Английский

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New reaction pathways by integrating chemo- and biocatalysis

Trends in Chemistry, Journal Year: 2022, Volume and Issue: 4(5), P. 392 - 408

Published: March 15, 2022

Language: Английский

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Review of Noble Metal Nanoparticle-Based Colorimetric Sensors for Food Safety Monitoring

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 19821 - 19853

Published: Aug. 16, 2024

Food safety, particularly concerning foods contaminated by toxic chemicals, has emerged as a pervasive societal concern. The prevalence of food contaminants spurred both scientific communities and industries to develop highly sensitive selective sensors for rapid precise authentication. Noble metal nanoparticles (NPs) have garnered significant attention in this regard due their exceptional properties, including high sensitivity, selectivity, stability, target binding affinity, versatility modification detect specific contaminants. Moreover, the readout such is relatively straightforward, resulting color change can be observed with naked eye. This Review aims delve into current strategies involving various noble NPs colorimetric nanosensors safety monitoring applications. It begins elucidating working principles, encompassing localized surface plasmon resonance (LSPR), enzyme-based approaches, other methodologies. Subsequently, material properties commonly utilized NPs, those gold, silver, palladium, platinum, copper, are meticulously examined, providing comprehensive overviews benefits drawbacks associated each material. Furthermore, summarizes latest use cases diverse applications, ranging from detection heavy veterinary pesticide drug residues foodborne pathogens. Lastly, it addresses remaining challenges field proposes feasible solutions, offering insights future research directions.

Language: Английский

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Exploring the Bioactive Sites of New Sulfonamide Metal Chelates for Multi-Drug Resistance: An Experimental Versus Theoretical Design

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2021, Volume and Issue: 32(2), P. 513 - 535

Published: Oct. 27, 2021

Language: Английский

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Designing multifunctional biocatalytic cascade system by multi-enzyme co-immobilization on biopolymers and nanostructured materials

International Journal of Biological Macromolecules, Journal Year: 2022, Volume and Issue: 227, P. 535 - 550

Published: Dec. 12, 2022

Language: Английский

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A Plurizyme with Transaminase and Hydrolase Activity Catalyzes Cascade Reactions

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(37)

Published: June 23, 2022

Engineering dual-function single polypeptide catalysts with two abiotic or biotic catalytic entities (or combinations of both) supporting cascade reactions is becoming an important area enzyme engineering and catalysis. Herein we present the development a PluriZyme, TR2 E2 , efficient native transaminase (kcat : 69.49±1.77 min-1 ) artificial esterase 3908-0.41 activities integrated into scaffold, evaluate its utility in reaction. (pHopt 8.0-9.5; Topt 60-65 °C) efficiently converts methyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate 3-(R)-amino-4-(2,4,5-trifluorophenyl)butanoic acid, crucial intermediate for synthesis antidiabetic drugs. The reaction proceeds through conversion β-keto ester acid at hydrolytic site subsequently β-amino (e.e. >99 %) site. power PluriZyme was proven set esters, demonstrating potential such designs to address bioinspired reactions.

Language: Английский

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Design of Artificial Enzymes Bearing Several Active Centers: New Trends, Opportunities and Problems

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(10), P. 5304 - 5304

Published: May 10, 2022

Harnessing enzymes which possess several catalytic activities is a topic where intense research has been carried out, mainly coupled with the development of cascade reactions. This review tries to cover different possibilities reach this goal: promiscuous activities, fusion enzymes, + metal catalysts (including nanoparticles or site-directed attached organometallic catalyst), bearing non-canonical amino acids catalysts, design second biological but artificial active center (plurizymes) by coupling enzyme modelling and directed mutagenesis plurizymes that have site modified in both just one an irreversible inhibitor catalyst. Some examples reactions catalyzed are also described. Finally, some foreseen problems use these multi-activity described (mainly related balance necessary many instances, operational stabilities activities). The new (e.g., plurizymes) seems be unarguable interest, as may link non-biological establish combo-catalysis routes.

Language: Английский

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Colloidal Protein–Silver Nanoparticle Metalloenzyme as Artificial Redox Biocatalyst

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 61 - 61

Published: Jan. 11, 2025

Efficient and sustainable catalytic processes are crucial for advancing green chemical manufacturing. Here, we describe the synthesis of novel silver artificial metalloenzymes in colloidal form aqueous media room temperature. The strategy is based on situ generation nanoparticles by a genetically modified Geobacillus thermocatenulatus lipase (GTL) active site as an inducer scaffold protein, producing enzyme–Ag bioconjugate. Using structural analysis formation XRD UV spectra, found Ag2O species with around 11 nm average diameter size. Gel filtration chromatography demonstrated presence single protein molecules bioconjugates, although were initially formed cysteine coordination but later other parts (five AgNPs per molecules, which concordance size). enzyme structure was altered after nanoparticle Ag-S interaction, observed fluorescence analysis. This new showed reductive activity against p-nitrophenol to p-amino high conversion > 99% reduction acetophenone phenylethanol, enantioselective quite moderate higher water that co-solvents. Finally, oxidase-like evaluated direct oxidation phenylethanol water, obtained at 23% yield ketone 60 h.

Language: Английский

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Enzymes and Natural Products

Published: Jan. 1, 2025

Language: Английский

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