Special Issue "Silica and Silica-based Materials for Biotechnology: From Synthesis to Applications"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 2 February 2021.

Special Issue Editors

Assist. Prof. Jakub Zdarta
Website
Guest Editor
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
Interests: biomaterials; biopolymers; hybrid and composite materials; biotechnology; enzyme immobilization; catalysis; environmental protection
Prof. Dr. Teofil Jesionowski
Website
Guest Editor
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
Interests: biopolymers; synthesis, characterization and applications of advanced functional materials; functional fillers and polymer composites; (bio)additives and eco-friendly fillers; biomineralization-inspired syntheses and extreme biomimetics; biocomposites and biomaterials; removal of wastewater pollutants via adsorption; photocatalysis or precipitation methods; pigment composites; enzyme immobilization; colloid chemistry and surface modification; hybrid systems; biosensors
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Special Issue Information

Dear Colleagues,

Although in recent years silica and silica-based materials has become one of the most frequently used materials in a various branches of science and industry, their use in biotechnology still is an very intensively expanding fields in materials chemistry. This is due to the extraordinary stability and mechanical resistance of the silica, its neutral character for most of the molecules as well as surface properties, such as well-defined surface area and the presence of numerous of hydroxyl moieties. These properties make silica extremely interesting for biotechnological application including, among others, adsorption of hazardous pollutants, catalysis, enzyme immobilization, drug delivery systems and development of novel, eco-friendly solutions. The increasingly growing number of possibilities to design and develop novel synthesis approaches and to use advanced characterization techniques of the silica and silica-based materials gives the opportunity to apply these materials, for instance in sophisticated medical and catalytic solutions. Nevertheless, further scientific studies are still required as development of the novel silica-based materials acts as a driving force for a widespread application of the above-mentioned systems in the field of biotechnology.

This Special Issue welcomes articles concerning synthesis, characterization and application of silica and silica-based materials in various areas of biotechnology. We hope to attract both, original research papers related to the fundamental science and practical application of silica and silica-based materials in biotechnology as well as review articles describing the current state of the knowledge.

Assist. Prof. Jakub Zdarta
Prof. Teofil Jesionowski
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • silica
  • biomaterials
  • silica-based materials
  • silica for biotechnology
  • polymer composites
  • environmental protection

Published Papers (2 papers)

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Research

Open AccessArticle
Preparation of Cu-Al/SiO2 Porous Material and Its Effect on NO Decomposition in a Cement Kiln
Materials 2020, 13(1), 145; https://doi.org/10.3390/ma13010145 - 30 Dec 2019
Abstract
Nitrogen oxide (NOx) emissions have attracted much attention for increasing concern on the quality of the atmospheric environment. In view of NO decomposition in the cement production process, the preparation of Cu-Al/SiO2 porous material and its effect on NO decomposition were studied, [...] Read more.
Nitrogen oxide (NOx) emissions have attracted much attention for increasing concern on the quality of the atmospheric environment. In view of NO decomposition in the cement production process, the preparation of Cu-Al/SiO2 porous material and its effect on NO decomposition were studied, and the denitrification mechanism was proposed in this paper. The NO decomposition performance of the Cu-Al/SiO2 porous material was tested via the experimental setup and infrared spectrometer and micro gas chromatography (GC). The result shows that the Cu-Al/SiO2 porous material with the template of cetyltrimethylammonium bromide (CTAB) had a better NO decomposition rate than materials with other templates when the temperature was above 500 °C, and NO decomposition rate could approach 100% at high temperatures above 750 °C. Structure analysis indicates that the prepared Cu-Al/SiO2 material structure was a mesoporous structure. The X-Ray Diffraction (XRD) and Ultraviolet–visible spectrophotometry (UV–Vis) results of the denitrification product show that the Cu-Al/SiO2 material mainly decomposed to Cu2O and Si2O, and the CuO decomposed to Cu2O and O2 at high temperature. The Cu(I)O was considered as the active phase. The redox process between Cu(II)O and Cu(I)O was thought to be the denitrification mechanism of the Cu-Al/SiO2 porous material. Full article
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Open AccessArticle
Co-Immobilization of Glucose Dehydrogenase and Xylose Dehydrogenase as a New Approach for Simultaneous Production of Gluconic and Xylonic Acid
Materials 2019, 12(19), 3167; https://doi.org/10.3390/ma12193167 - 27 Sep 2019
Abstract
The conversion of biomass components catalyzed via immobilized enzymes is a promising way of obtaining valuable compounds with high efficiency under mild conditions. However, simultaneous transformation of glucose and xylose into gluconic acid and xylonic acid, respectively, is an overlooked research area. Therefore, [...] Read more.
The conversion of biomass components catalyzed via immobilized enzymes is a promising way of obtaining valuable compounds with high efficiency under mild conditions. However, simultaneous transformation of glucose and xylose into gluconic acid and xylonic acid, respectively, is an overlooked research area. Therefore, in this work we have undertaken a study focused on the co-immobilization of glucose dehydrogenase (GDH, EC 1.1.1.118) and xylose dehydrogenase (XDH, EC 1.1.1.175) using mesoporous Santa Barbara Amorphous silica (SBA 15) for the simultaneous production of gluconic acid and xylonic acid. The effective co-immobilization of enzymes onto the surface and into the pores of the silica support was confirmed. A GDH:XDH ratio equal to 1:5 was the most suitable for the conversion of xylose and glucose, as the reaction yield reached over 90% for both monosaccharides after 45 min of the process. Upon co-immobilization, reaction yields exceeding 80% were noticed over wide pH (7–9) and temperature (40–60 °C) ranges. Additionally, the co-immobilized GDH and XDH exhibited a significant enhancement of their thermal, chemical and storage stability. Furthermore, the co-immobilized enzymes are characterized by good reusability, as they facilitated the reaction yields by over 80%, even after 5 consecutive reaction steps. Full article
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