In this investigation, two new thermophilic bacteria were isolated. The new isolates were characterized by 16S rRNA, biochemical, morphological, and physiological analyzes and the isolates were identified as strain Gecek20 and thermophilic strain Gecek19. Various biological activities of extracellular Ag-NPs synthesized from thermophilic strain Gecek20 and thermophilic strain Gecek19 were evaluated.
View Article and Find Full Text PDFIn this study, a new phthalonitrile derivative namely 4-[(2,4-difluorophenyl)ethynyl]phthalonitrile (1) and its metal phthalocyanines (2 and 3) were synthesized. The resultant compounds were conjugated to silver nanoparticles and characterized using transmission electron microscopy (TEM) images. The biological properties of compounds (1-3), their nanoconjugates (4-6), and silver nanoparticles (7) were examined for the first time in this study.
View Article and Find Full Text PDFUnlabelled: It is known that heavy metal containing nanomaterials can easily prevent the formation of microbial cultures. The emergence of new generation epidemic diseases in the last 2 years has increased the importance of both personal and environmental hygiene. For this reason, in addition to preventing the spread of diseases, studies on alternative disinfectant substances are also carried out.
View Article and Find Full Text PDFAntibacterial membranes have attracted researchers' interest in recent years as a possible approach for dealing with biofouling on the membrane surface. This research aims to see if blending AZ63 Mg alloy into a polyethersulphone (PES) membrane can improve antifouling and separation properties. The composite membranes' pure water flux continued to increase from pristine PES to PES/AZ63 2.
View Article and Find Full Text PDFThe intrinsic pathological characteristics of tumor microenvironments restrict the deep penetration of nanomedicines by passive diffusion. Magnetophoresis is a promising strategy to improve the tumor penetration of nanomedicines aided by the external magnetic propulsive force. However, the research thus far has been focused on large nanoparticles, while ultrasmall superparamagnetic iron oxide (FeO) nanoparticles (<∼20 nm) exhibit better performance in many applications such as cancer diagnosis and treatment.
View Article and Find Full Text PDFIn this research, nanoparticles derived from water extract of Centaurea solstitialis leaves were used as green adsorbent in Fenton reaction for Reactive Red 180 (RR180) and Basic Red 18 (BR18) dyes removal. At optimum operating conditions, nanoparticles proved high performance in the tested dyes removal with more than 98% of removal elimination. The free-radical scavenging, DNA nuclease, biofilm inhibition capability, antimicrobial activity, microbial cell viability, and antimicrobial photodynamic therapy activities of the iron oxide nanoparticles (FeO-NPs) derived from water and methanol extract of plant were investigated.
View Article and Find Full Text PDFThis study aimed to synthesize Ag NPs as a green catalyst for photocatalytic activity and to examine their biological activities. It was determined that they have high activity in catalytic and biological activities. The green synthesis which is an environmentally friendly and inexpensive method was used to synthesize Ag-NPs using Linum usitatissimum as a reducing agent.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
April 2023
The control over bacterial diseases requires the development of novel antibacterial agents. The use of antibacterial nanomedicines is one of the strategies to tackle antibiotic resistance. The study was designed to assess the antimicrobial activity of cerium oxide (CeO ) nanoparticles (NP) of two different sizes (CeO NP1 [1-2 nm] and CeO NP2 [10-12 nm]) and their cytotoxicity towards eukaryotic cells.
View Article and Find Full Text PDFIn this study, the electrooxidation (EO) and membrane processes were used for chemical oxygen demand (COD) and total phenol (TPh) removal from wet scrubber wastewater (WSW). EO experiments were carried out using Al, Fe, SS, Ti, graphite, active carbon cloth electrodes and Box-Behnken design were used for optimization of maximum COD and TPh removal efficiency. Moreover, membrane filtration experiments were conducted to EO process using nanofiltration (NF270) and reverse osmosis membranes (SW30 and BW30).
View Article and Find Full Text PDFThe search for novel antimicrobial agents is of huge importance. Nanomaterials can come to the rescue in this case. The aim of this study was to assess the cytotoxicity and antimicrobial effects of rare-earth-based orthovanadate nanoparticles.
View Article and Find Full Text PDFIn this study, synthesis of silver nanoparticles (AgNPs) was carried out utilizing the red and green parts of the pistachio hulls then their several biological activities were investigated. The DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) activities of the AgNPs synthesized from red pistachio hulls extracts (PhR-AgNPs) and green pistachio hulls extracts (PhG-AgNPs) were investigated. The DPPH scavenging capability at 200 mg/L concentration of PhR-AgNPs was around 93.
View Article and Find Full Text PDFIn the present study, Ag nanoparticles (AgNPs) were synthesized from and , known as phytotherapy plants. The obtained silver nanoparticles were characterized using SEM, XRD, FTIR, and UV/Vis spectra. The antioxidant capacities of mediated AgNP (SO-AgNP) and -mediated AgNP (TV-AgNP) were analyzed in vitro using 1,1-diphenyl-2-picrylhydrazyl and iron chelating activity assays.
View Article and Find Full Text PDFNanotechnology can be applied to design antibacterial agents to combat antibiotic resistance. The aim of the present study was to assess the antimicrobial effects and cytotoxicity of GdYVO:Eu nanoparticles (NPs). Biofilm inhibition activity, antimicrobial activity, bacterial viability inhibition and DNA cleavage activity of GdYVO:Eu NPs were studied.
View Article and Find Full Text PDFNew asymmetric Si(IV)Pc (1), monomeloxicammonotriethyleneglycolmonomethylether (phthalocyaninano)silicone, axially ligated with meloxicam as a non-steroidal anti-inflammatory drug (NSAID), or triethylene glycol monomethyl ether and symmetric Si(IV)Pc (2), diclofenac(phthalocyaninano)silicone, axially ligated with two diclofenac as NSAID, were synthesized and characterized as antioxidant and antimicrobial agents together with (3), ditriethyleneglycolmonomethylether(phthalocyaninano)silicone, and (4), dihydroxy(phthalocyaninano)silicone. The photophysical and photochemical properties of these compounds were investigated. Then, antioxidant assays, including 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferrous ion chelating activities, were performed for these Si(IV) phthalocyanine derivatives (1, 2, 3 and 4).
View Article and Find Full Text PDFIntroduction: Custodiol (histidine-tryptophan-ketoglutarate) and repetitive blood cardioplegia are the solutions for myocardial protection and cardiac arrest. In this study, we aimed to compare immunohistochemical analysis, clinical outcomes, and cardiac enzyme values of Custodiol and blood cardioplegia groups.
Methods: This was a randomized prospective study consisting of 2 groups and 20 patients, 10 patients for each group, who underwent mitral and mitral/tricuspid valve surgery.
The emergence of nanoscience and its effect on the development of diverse scientific fields, particularly materials chemistry, are well known today. In this study, a new di-substituted phthalonitrile derivative, namely 4,5-bis((4-(dimethylamino)phenyl)ethynyl)phthalonitrile (1), and its octa-substituted metal phthalocyanines {M = Co (2), Zn (3)} were prepared. All the newly synthesized compounds were characterized using a number of spectroscopic approaches, including FT-IR, mass, NMR, and UV-vis spectroscopy.
View Article and Find Full Text PDFThis study presents the preparation of a novel tetra-substituted phthalonitrile (1), namely, 3,6-bis(hexyloxy)-4,5-bis(4-(trifluoromethoxy)phenoxy)phthalonitrile (1) and its metal-free (2)/metal {M = Zn (3), Cu (4), Co (5), Lu(CHCOO) (6), Lu (7)} phthalocyanines. A series of various spectroscopic methods (UV-vis, FT-IR, mass, and H NMR spectroscopy) were performed for the characterization of the newly synthesized compounds. The potential of compounds 2, 3, and 6 as photosensitizing materials for photodynamic and sonophotodynamic therapies was evaluated by photophysical, photochemical, and sonochemical methods.
View Article and Find Full Text PDFAs thiazoles and fluorinated groups are well known as active species of hybrid pharmaceutical agents, this study aimed to evaluate the synergic effect of these groups on the biological features of phthalocyanines for the first time in the hope of discovering efficient pharmaceutical agents. Therefore, a new phthalonitrile derivative namely 4-(2-(4-methylthiazol-5-yl)ethoxy)-5-(4-(trifluoromethoxy)phenoxy)phthalonitrile (1) and its metal-free (2)/metal phthalocyanines (3-5) were prepared and characterized using various spectroscopic techniques. Solubility of new phthalocyanines (2-5) was examined in a series of polar and nonpolar solvents.
View Article and Find Full Text PDFDisinfection can be accomplished by adding external chemical agents to kill harmful microorganisms or by removing them using membranes. However, most chemicals are toxic for humans and animals if it is consumed above a certain concentration. Likewise, membranes have fouling problems.
View Article and Find Full Text PDFTurkiye Parazitol Derg
August 2021
Objective: This study aimed to retrospectively reveal the seroprevalence of in pregnant women with routine pregnancy follow-up.
Methods: Anti- IgM-IgG antibody values of pregnant women aged 16-49 years, who had routine pregnancy follow-up in January-December 2019 were analysed retrospectively.
Resultsresults: Of the 1.
Colloids Surf B Biointerfaces
September 2021
This study aims to investigate the modification of polyethersulfone (PES) membrane with boron nitride quantum dots (BNQD) for improving the antifouling performance. The composite membranes were synthesized by blending different amounts of BNQD (0.50, 1.
View Article and Find Full Text PDFIn this study, a new fluorinated phthalonitrile compound namely 5-bis[4-(trifluoromethoxy)-thiophenyl] phthalonitrile was synthesized. In addition, peripherally substituted symmetric metallated phthalocyanine derivatives [M = Co (2) and M = Zn (3)] and unsymmetrically substituted zinc phthalocyanine (ZnPc) complex (4) were synthesized by cyclotetramerization of this phthalonitrile compound. Characterization of all new compounds was carried out using FT-IR, NMR, UV-Vis, and mass spectroscopy.
View Article and Find Full Text PDFBackground: Pulmonary artery perfusion during cardiopulmonary bypass (CPB) is a known but rarely used technique in adult cardiac surgery. In this study, we aimed to investigate biochemical and histopathological effects of pulmonary artery perfusion during CPB on lung functions.
Methods: Between May 2014 and August 2014, all patients (n = 24) who gave informed consent for participating this study with inclusion criteria were included.
Layered double hydroxide (LDH) nanostructures and related nanocomposites have attracted significant interest in biomedical applications including cancer therapy, bioimaging and antibacterial treatment. These materials hold great advantages including low cost and facile preparation, convenient drug loading, high drug incorporation capacity, good biocompatibility, efficient intracellular uptake and endosome/lysosome escape, and natural biodegradability in an acidic environment. In this review, we summarize the development of three types of LDH nanostructures including pristine LDH, surface modified LDH, and LDH nanocomposites for a range of biomedical applications.
View Article and Find Full Text PDFDermatophytes are among the most successful fungal pathogens in humans, but their virulence mechanisms have not yet been fully characterized. Dermatophytic fungi secrete proteases in vivo, which are responsible for fungal colonization and degradation of the keratinized tissue during infection. In the present study, we used PCR to investigate the presence of genes encoding fungalysins (MEP) and subtilisins (SUB) in three dermatophyte species whose incidence is increasing in Europe: the anthropophilic Trichophyton rubrum (n = 58), zoophilic Microsporum canis (n = 33), and Trichophyton benhamiae (n = 6).
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