New Class of Antimicrobial Agents: SBA-15 Silica Containing Anchored Copper Ions

Laskowski, Łukasz; Laskowska, Magdalena; Fijałkowski, Krzysztof; Jelonkiewicz, Jerzy; Jaskulak, Marta; Gnatowski, A.; Dulski, Mateusz

doi:10.1155/2017/1287698

Cited by 19 publications

(13 citation statements)

References 57 publications

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“…Such materials can find applications mainly as antimicrobial coatings. As we reported earlier [42], functionalized mesoporous silica can present very unusual biocidal properties. The rate of bacteria elimination strongly depended on the concentration of metal-containing molecules, but this dependency was not linear and not monotonous.…”

Section: Introductionsupporting

confidence: 62%

Synthesis of Vertically Aligned Porous Silica Thin Films Functionalized by Silver Ions

Fedorchuk

Walcarius

Laskowska

et al. 2021

IJMS

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In this work, we have developed a chemical procedure enabling the preparation of highly ordered and vertically aligned mesoporous silica films containing selected contents of silver ions bonded inside the mesopore channels via anchoring propyl-carboxyl units. The procedure involves the electrochemically assisted self-assembly co-condensation of tetraethoxysilane and (3-cyanopropyl)triethoxysilane in the presence of cetyltrimethylammonium bromide as a surfactant, the subsequent hydrolysis of cyano groups into carboxylate ones, followed by their complexation with silver ions. The output materials have been electrochemically characterized with regard to the synthesis effectiveness in order to confirm and quantify the presence of the silver ions in the material. The mesostructure has been observed by transmission electron microscopy. We have pointed out that it is possible to finely tune the functionalization level by controlling the co-condensation procedure, notably the concentration of (3-cyanopropyl)triethoxysilane in the synthesis medium.

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Section: Introductionsupporting

confidence: 62%

Synthesis of Vertically Aligned Porous Silica Thin Films Functionalized by Silver Ions

Fedorchuk

Walcarius

Laskowska

et al. 2021

IJMS

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“…Recently, there have been many papers in the literature that have highlighted an innovative approach for functionalizing well-known structures by combining porous materials such as an oxide matrix carrier, e.g., a polymer, silicon oxide, titanium oxide, or zinc oxide, with the ionic form of metals or with metallic nanoparticles [ 44 , 45 , 46 , 47 ]. The chemically modified fumed silica seems to be the most promising inorganic structure due to the immobilization of silver on the surface via unsaturated chemical bonds [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

An Organic–Inorganic Hybrid Nanocomposite as a Potential New Biological Agent

et al. 2020

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To solve the problem of human diseases caused by a combination of genetic and environmental factors or by microorganisms, intense research to find completely new materials is required. One of the promising systems in this area is the silver-silica nanocomposites and their derivatives. Hence, silver and silver oxide nanoparticles that were homogeneously distributed within a silica carrier were fabricated. Their average size was d = (7.8 ± 0.3) nm. The organic polymers (carboxymethylcellulose (CMC) and sodium alginate (AS)) were added to improve the biological features of the nanocomposite. The first system was prepared as a silver chlorine salt combination that was immersed on a silica carrier with coagulated particles whose size was d = (44.1 ± 2.3) nm, which coexisted with metallic silver. The second system obtained was synergistically interacted metallic and oxidized silver nanoparticles that were distributed on a structurally defective silica network. Their average size was d = (6.6 ± 0.7) nm. Physicochemical and biological experiments showed that the tiny silver nanoparticles in Ag/SiO2 and Ag/SiO2@AS inhibited E. coli, P. aeruginosa, S. aureus, and L. plantarum’s cell growth as well as caused a high anticancer effect. On the other hand, the massive silver nanoparticles of Ag/SiO2@CMC had a weaker antimicrobial effect, although they highly interacted against PANC-1. They also generated reactive oxygen species (ROS) as well as the induction of apoptosis via the p53-independent mechanism.

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“…In the study by Singh et al, a significantly lower glucose elevation in Cd-exposed animals was detected [ 70 ]. Many studies have shown that the metal concentration in the blood significantly affects the duration of type 1 diabetes and the degree of metabolic control [ 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 ].…”

Section: The Risk Of T1dm Development Associated With Exposure To Sel...mentioning

confidence: 99%

Air Pollution, Oxidative Stress, and the Risk of Development of Type 1 Diabetes

et al. 2022

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Despite multiple studies focusing on environmental factors conducive to the development of type 1 diabetes mellitus (T1DM), knowledge about the involvement of long-term exposure to air pollution seems insufficient. The main focus of epidemiological studies is placed on the relationship between exposure to various concentrations of particulate matter (PM): PM1, PM2.5, PM10, and sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (O3), versus the risk of T1DM development. Although the specific molecular mechanism(s) behind the link between increased air pollution exposure and a higher risk of diabetes and metabolic dysfunction is yet unknown, available data indicate air pollution-induced inflammation and oxidative stress as a significant pathway. The purpose of this paper is to assess recent research examining the association between inhalation exposure to PM and associated metals and the increasing rates of T1DM worldwide. The development of modern and more adequate methods for air quality monitoring is also introduced. A particular emphasis on microsensors, mobile and autonomous measuring platforms, satellites, and innovative approaches of IoT, 5G connections, and Block chain technologies are also presented. Reputable databases, including PubMed, Scopus, and Web of Science, were used to search for relevant literature. Eligibility criteria involved recent publication years, particularly publications within the last five years (except for papers presenting a certain novelty or mechanism for the first time). Population, toxicological and epidemiological studies that focused particularly on fine and ultra-fine PM and associated ambient metals, were preferred, as well as full-text publications.

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New Class of Antimicrobial Agents: SBA-15 Silica Containing Anchored Copper Ions

Cited by 19 publications

References 57 publications

Synthesis of Vertically Aligned Porous Silica Thin Films Functionalized by Silver Ions

Synthesis of Vertically Aligned Porous Silica Thin Films Functionalized by Silver Ions

An Organic–Inorganic Hybrid Nanocomposite as a Potential New Biological Agent

Air Pollution, Oxidative Stress, and the Risk of Development of Type 1 Diabetes

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