Surfaces and Interfaces in Biocatalysis

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Biocatalysis".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 2657

Special Issue Editor

Dynamics of Nanocrystal Structure Induced by Surface Chemistry, Department of Catalysis on MetalsInstitute of Physical Chemistry, Polish Academy of SciencesKasprzaka 44/52, 01-224 Warsaw, Poland
Interests: electron spectroscopic methods; surface analyses; surfaces and interfaces; carbon nanomaterials; biomaterials
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Special Issue Information

Dear Colleagues,

In recent years, biocatalysis has been increasing in importance due to challenging possibilities not accessible by chemical synthesis—enantioselectivity, milder and green chemistry conditions, and minimized energy and waste. Therefore, biocatalysts, i.e., naturally occurring biological materials (e.g., enzyme-specific proteins), play a major role in the production of biobased and bioeconomic products. The biocatalyst, which decreases the activation energy in various biochemical reactions by binding a reactant (known as a substrate) to biocatalyst-active sites to form an activated complex, leading finally to a reaction product and realised biocatalyst, acts via different mechanisms, such as the destabilisation of bonds; conformational changes; the presence of acidic or basic groups affecting bond polarisation and reaction speed; electrostatic attractions stabilising the activated complex; and covalent bonding or cofactors lowering the transition state energy. Therefore, a surface and interface bioscience, where a biointerface corresponds to a region of contact between another biomolecule or inorganic/organic material, as an interdisciplinary field of chemistry, physics, biology, and engineering, has recently been revealed in numerous experimental and theoretical studies, This is extremely important for biology, biotechnology, food and cosmetics technology, and medicine, where it can be utilised in designing drugs, sensors and biomarkers for therapy, diagnosis, drug delivery, and cell targeting, etc.

This Special Issue is dedicated to the experimental and theoretical aspects of the science and technology of biocatalysis; bioprocesses; agricultural and medical biotechnology; the chemical and physical characterisation of biomaterials at the surface and interface; the description of the interactions of biomaterials at the interface; the description of mechanisms and processes at the surface and interface; techniques of qualitative and quantitative characterisation of the surface and interface of biomaterials; theoretical modelling of the biointerface; methods of surface biofunctionalisation/biomodification; and methods of attaching biomaterials with molecular precision.

Topics of interest include, but are not limited to, the following:

  • Biocatalysis;
  • Biofilms;
  • Biomaterial functionalisation and modification;
  • Biomaterial interactions;
  • Biomaterial surface–interface characterisation;
  • Methods of biomaterial surface–interface characterisation;
  • Biomaterial modelling.

Kind regards,

Dr. hab. B. Lesiak-Orłowska
Guest Editor

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Published Papers (2 papers)

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Editorial

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3 pages, 154 KiB  
Editorial
Surfaces and Interfaces in Biocatalysis
by Beata Lesiak-Orłowska
Catalysts 2022, 12(4), 379; https://doi.org/10.3390/catal12040379 - 29 Mar 2022
Cited by 3 | Viewed by 1198
Abstract
Biocatalysis is related to the application of all naturally occurring living biological systems (e [...] Full article
(This article belongs to the Special Issue Surfaces and Interfaces in Biocatalysis)

Research

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15 pages, 3005 KiB  
Article
Enzyme Immobilization on Stainless Steel Fleece and Its Mass Transfer Enhancement of Enzymatic Catalysis in a Rotating Packed Bed Reactor
by Ruiyi Yang, Juntao Xu, Jinglong Wu, Dong Lu, Fang Wang and Kaili Nie
Catalysts 2023, 13(12), 1501; https://doi.org/10.3390/catal13121501 - 08 Dec 2023
Viewed by 784
Abstract
Rotating packed beds (RPB) facilitate the mixing of heterogeneous substrates, and promote high mass transfer efficiency in heterogeneous reactions. For the enzymatic reactions, traditional porous particles with immobilized enzymes are sensitive to the strong sheer force of the RPB, thus limiting its application. [...] Read more.
Rotating packed beds (RPB) facilitate the mixing of heterogeneous substrates, and promote high mass transfer efficiency in heterogeneous reactions. For the enzymatic reactions, traditional porous particles with immobilized enzymes are sensitive to the strong sheer force of the RPB, thus limiting its application. This work offers a strategy for enzyme immobilization on the surface of stainless-steel fleece, to improve the shear strength resistance of immobilized enzymes. Lipase was applied to investigate and optimize the immobilization. Finally, a fatty acid hydratase (FAH) was applied for immobilization based on the optimized method, which was further applied for evaluating its performance in RPB. The results indicated that metal immobilized enzymes resist a higher shear force than their particle-immobilized alternatives. Operating at a centrifugal force factor (β) of 30, the hydration conversion rate of 96% is achieved after 8 h, which was from nearly 38% faster than in a stirrer tank reactor (hydration yield of 60%). The metal immobilization, moreover, efficiently improved the enzyme reusability, as demonstrated by a conversion rate remaining above 90% after 15 batches. These results indicated that a metal immobilization method combined with an RPB reactor significantly increases the efficiency of enzymatic reactions. Full article
(This article belongs to the Special Issue Surfaces and Interfaces in Biocatalysis)
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