Biosynthesis of Palladium Nanoparticles by Using Aqueous Bark Extract of , and for Potential Antioxidant and Antimicrobial Applications.

This study aimed to synthesize palladium nanoparticles (PdNPs) using bioactive compounds from aqueous extracts of species (, , and ) with potential biomedical applications. To optimize PdNPs biosynthesis, various parameters were explored, including the concentration of PdCl, the extract-to-PdCl ratio, and the pH of the solution. The nanoparticles were characterized using ultraviolet/visible spectroscopy (UV/Vis), Fourier-transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS).

Green Synthesis of Metallic Nanoparticles from Bark Extracts: Characterization and Functional Properties.

species are utilized for their durable wood, providing sustenance for wildlife, conserving biodiversity, and contributing ecological, medicinal, and esthetic benefits to ecosystems and landscapes. In this study, we aimed to use the bark of three species (, , and ) for the synthesis of silver and gold nanoparticles (AgNPs and AuNPs). The aqueous extracts from the bark of sp.

A Review on Plant-Mediated Synthesis of Bimetallic Nanoparticles, Characterisation and Their Biological Applications.

The study of bimetallic nanoparticles (BNPs) has constantly been expanding, especially in the last decade. The biosynthesis of BNPs mediated by natural extracts is simple, low-cost, and safe for the environment. Plant extracts contain phenolic compounds that act as reducing agents (flavonoids, terpenoids, tannins, and alkaloids) and stabilising ligands moieties (carbonyl, carboxyl, and amine groups), useful in the green synthesis of nanoparticles (NPs), and are free of toxic by-products.

A Review of Bark-Extract-Mediated Green Synthesis of Metallic Nanoparticles and Their Applications.

Nanoparticles are intensely studied because of their importance in diverse fields of biotechnology, especially in medicine. This paper highlights that waste bark can be a cheap source of biocompounds, with high recovery and functionalization potential in nanoparticle synthesis. Due to their biocompatibility and activity as antioxidant, antimicrobial, and anticancer agents, the green synthesis of metallic nanoparticles is of great importance.

Antibacterial and Antioxidant Potential of Silver Nanoparticles Biosynthesized Using the Spruce Bark Extract.

Biosynthesized silver nanoparticles (AgNPs) are widely used in Pharmacy and Medicine. In particular, AgNPs synthesized and mediated by plant extracts have shown topossess several biological activities. In the present study, AgNPs were synthesized using L.

Investigation of In Vitro Antioxidant and Antibacterial Potential of Silver Nanoparticles Obtained by Biosynthesis Using Beech Bark Extract.

Green synthesis is one of the rapid and best ways for silver nanoparticles (AgNP) synthesis. In the present study, synthesis and bioactivity of AgNPs has been demonstrated using water beech ( L.) bark extract.

Shortened Telomeres in Families With a Propensity to Autism.

Objective: Shortened telomeres have been linked to poorer health outcomes. Exposure to psychological stress is associated with accelerated telomere shortening, and a well-established body of evidence indicates that families with a child with autism spectrum disorder (ASD) experience heightened levels of psychological stress. Also, alterations in a number of biological processes implicated in telomere length dynamics (i.

Ultrastructural modifications at uterine cervix level induced by human papillomaviruses infections.

The paper presents the ultrastructural modifications occurring in uterine cervix epithelium in 10 patients with clinical susceptibility of HPV infections. The presence of viral HPV particles was identified in 5 cases and in 1 case the concomitant presence of both HPV and HSV2 particles was detected. The maximum amount of HPV virions is found in the spinous and superficial layer, particularly in the nucleus, but also in cytoplasm.

Interactions between Borrelia burgdorferi and eukaryote cells: comparative ultrastructural aspects.

In the present study, mammalian VERO cells, human polymorphonuclear leukocytes (PMN) and mouse peritoneal macrophages (MPM) were coincubated with B31 Borrelia burgdorferi strain (Bb) and examined by transmission electron microscopy. The results indicate that the spirochete adheres to the mammalian cells mainly by the apical pole and less frequently by the lateral wall. In VERO cells and MPM cell penetration is accomplished especially by cytoplasmic membrane destruction, the spirochete appearing free in the cytoplasm, but also by phagocytosis.