Diatomaceous Biosilica Doped with Heteroepitaxially Growing Ag/AgCl/CeO2 Composite Nanoparticles: Synthesis, Characterisation and Antibacterial Application

被引：4

作者：

Wojtczak, Izabela ^{[1
]}

Brzozowska, Weronika ^{[2
,3
]}

Railean, Viorica ^{[4
,5
]}

Bekissanova, Zhanar ^{[6
,7
]}

Trykowski, Grzegorz ^{[8
]}

Sprynskyy, Myroslav ^{[1
]}

机构：

[1] Nicolaus Copernicus Univ Torun, Fac Chem, Dept Environm Chem & Bioanalyt, Gagarina 7, PL-87100 Torun, Poland

[2] Univ Szczecin, Inst Marine & Environm Sci, Mickiewicza 16, PL-70383 Szczecin, Poland

[3] Univ Szczecin, Inst Marine & Environm Sci, Doctoral Sch, Mickiewicza 16, PL-70383 Szczecin, Poland

[4] Nicolaus Copernicus Univ Torun, Inst Vet Med, Dept Infect Invas Dis & Vet Adm, Gagarina 7, PL-87100 Torun, Poland

[5] Nicolaus Copernicus Univ Torun, Interdisciplinary Ctr Modern Technol, Wilenska 4, PL-87100 Torun, Poland

[6] Al Farabi Kazakh Natl Univ, Fac Chem & Chem Technol, Alma Ata 050040, Kazakhstan

[7] Ctr Phys Chem Methods Res & Anal, Alma Ata 050012, Kazakhstan

[8] Nicolaus Copernicus Univ Torun, Fac Chem, Gagarina 7, PL-87100 Torun, Poland

来源：

JOURNAL OF CLUSTER SCIENCE | 2023年 / 35卷 / 2期

关键词：

Diatomaceous biosilica; Silver nanoparticles; Cerium dioxide nanoparticles; Heteroepitaxial growth; (Ag AgCl CeO2) Diatomaceous biosilica composites; Antibacterial activity; CERIUM OXIDE NANOPARTICLES; SILVER NANOPARTICLES; ANTIMICROBIAL ACTIVITY; BIOMEDICAL APPLICATIONS; CELLULAR UPTAKE; CEO2; PHOTOLUMINESCENCE; LUMINESCENCE; DYES;

D O I：

10.1007/s10876-023-02492-x

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Modern technology's development is also towards using microorganisms as micro-factories of biomaterials with unique properties and combining the original properties of biosilica extracted from diatoms (microalgae) together with immobilised silver and cerium in nanoparticle forms allowed to obtain a modern composite material with antibacterial activity. The synthesised composites containing heteroepitaxially growing Ag/AgCl/CeO2 complex nanoparticles were studied using different types of instrumental analysis. SEM-EDX and XRD analysis allowed the qualitative and quantitative determination of the elements present and their forms in the composites. TEM permitted analysis of information about the created nanoparticles shape, size and structure specificity. The possible mechanism of nanoparticle formation was suggested. Antibacterial properties of synthesised composites were characterised using a minimum inhibitory concentration test on six selected bacterial strains. Diatomaceous biosilica containing heteroepitaxially growing silver chloride, metallic silver, and cerium (IV) oxide nanoparticles have been prepared for the first time. The proposed method for synthesising composites did not use toxic reagents, making it environmentally friendly.

引用

页码：429 / 442

页数：14

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