Despite numerous attempts to fabricate the core–shell nanoparticles, novel, simple, and low-cost approaches are still required produce these efficient nanosystems. In this study, we propose synthesis of bimetallic nanoparticles gold (AuNP) silver (AgNP) nanostructures via a bioinspired polydopamine (PDOP) layer their employment as surface-enhanced Raman spectroscopy (SERS) platform. Herein, PDOP was used an interface between well stabilizing reducing agents for deposition ions onto AuNPs....

Oxygen vacancies in tungsten trioxide (WO 3 ) nanostructures 3− x dominate the major characteristics of material and determine their activity various applications including photocatalysis surface-enhanced Raman spectroscopy (SERS).

In the last two decades, fluorescent carbon quantum dots (CQDs) have attracted intense interest as a new nanomaterial with unique properties. This material offers significant advantages compared conventional dyes and inorganic QD systems, is used extensively in many different fields, especially bioimaging sensor applications. Despite all positive values they offer, production of CQD systems excitation wavelength-dependent nature high yield (QY) still scientific challenge. this study, we...

Carbon quantum dots (CQDs) with their strong photoluminescence (PL) activity, high biocompatibility, robust stability, low cytotoxicity, and flexible surface structures have been employed in many fields including chemical sensing, biosensing, photocatalyst, energy storage, biomedical applications. Of note, CQDs present an intrinsic pH-sensitive PL nature indicating intense potential for pH-mediated sensing imaging. Despite the numerous studies performed last two decades, mechanism of is...

In this study, we propose the synthesis of silver (Ag) nanoparticle decorated TiO2 nanoflowers (TNFs) using a polymeric conformal thin film 3,4-dihydroxyphenyl-L-alanine (PLDOPA). The size, as well interparticle distance Ag nanostructures, were tuned by simply changing number supplied ions. resultant nanocomposite system ([email protected]@Ag) showed unique SERS activity with high reproducibility and an enhancement factor 4.2 × 107. Also, ideal photocatalytic system, [email protected]@Ag...

This study reports the development of a highly sensitive antibiotic-based discrimination and sensor platform for detection Gram-positive bacteria through surface-enhanced Raman spectroscopy (SERS).

Silver nanoparticles (AgNPs) with their unique properties represent great promise in biological applications. However, the high toxicity of AgNPs still remains a major bottleneck and hinders basic usage. In present study, to improve cytotoxicity AgNPs, thin layer polydopamine (PDOP) was proposed as shell material. For this, as-prepared citrate-stabilized were dispersed dopamine solution under alkaline conditions. The thickness PDOP could be manipulated simply by tuning polymerization time....

Abstract Core–shell gold nanorod (AuNR)@silver (Ag) nanostructures with their unique properties have gained enormous interest and are widely utilized in various applications including sensor systems, catalytic reactions, diagnosis, therapy. Despite the recent progress, simple, effective, low-cost, easy-to-tune strategies heavily required to fabricate these nanoparticles (NP) systems. For this, we propose employment of polymer 3,4-dihydroxyphenyl-L-alanine (L-DOPA) as a ligand molecule. A...

Abstract The employment of biomass waste for the fabrication carbon quantum dots (CQDs), as a novel fluorescent material with high photoluminescence (PL) activity, has gained intense interest last decade. However, CQD from encounters challenges including low fluorescence yield, reproducibility, and stability. Therefore, novel, simple, flexible routes CQDs using precursor are still essential practical applications. In this study, we reported human urine (U), sour whey (W), their mixture (U/W)...

Plasmonic metal nanoparticle (NP)-decorated thin films of biobased and biocompatible polymers provide significant opportunities in various biomedical applications. Inspired from the adhesive proteins marine mussels, polydopamine (PDA) serves as a versatile, biocompatible, simple thin-film material enhances cell growth proliferation. Herein, we report fabrication gold NPs (AuNPs) or silver (AgNPs)-deposited PDA their employment film with its numerous functional groups enabled well-controlled...

Mercury (Hg) is one of the most important environmental pollutants that negatively affects plant growth and development. Cysteine (Cys) plays an role in response to various stress factors. In present study, alleviation Hg through exogenous Cys treatment maize seedlings was evaluated. For this purpose, a hydroponic experiment set up investigate effect HgCI2 (100 μM) combination with (200 on growth, total chlorophyll content, reactive oxygen species, antioxidant enzyme activities, mRNA...

The steady increase in the employment of silver nanoparticles (AgNPs) consumer products entails determination aquatic toxicity AgNPs. Various AgNP characteristics including particle size, and shape, surface charge, material have prominent effects on ecotoxicity. In present study, we investigated chemically-synthesized AgNPs (Che-AgNPs) green synthesis (Gr-AgNPs) to Daphnia magna as a model organism. each case, Che-AgNPs Gr-AgNPs showed dose-dependent range 5-50 ppb. It was also detected that...

Abstract Metallic nanoparticle (NP)‐decorated electrospun micro/nanofibers as an ideal photocatalytic system for the degradation of organic dyes may provide unique advantages in terms 3D morphology with high surface area, well‐controlled porosity, low cost, good interconnectivity, and excellent flexibility. However, novel, flexible, low‐cost, efficient fabrication methods are still demanded to obtain activity. In this report, first time, we propose gold NP (AuNP)‐decorated...

ABSTRACTABSTRACTThis study investigates the protective role of Hispidulin on acute respiratory distress syndrome (ARDS) in rats. Rats were divided into three groups: control, ARDS, ARDS+ Hispidulin. The ARDS models established by injecting rats with oleic acid. (100 mg/kg) was injected i.p. an hour before ARDS. Myeloperoxidase (MPO), Interleukin-8 (IL-8), Mitogen-activated protein kinases (MAPK), Lipid Peroxidation (LPO), Superoxide Dismutase (SOD), Glutathione (GSH), and...

Çekirdek-kabuk nanopartikül sistemler esnek ve sıradışı özellikleri ile başta katalitik dönüşüm olmak üzere farklı alanlarda kullanılmaktadır. Fakat, bu nanosistemleri üretmek için basit, düşük maliyetli yenilikçi stratejiler sınırlı sayıda olup, etkin çekirdek-kabuk nanoyapılar yüksek oranda talep görmektedir. Bu çalışmada ince bir polidopamin (PDOP) tabakası oluşturulan bimetalik altın gümüş nanosistemin üretimini önermekteyim. PDOP ara tabaka olarak indirgeme stabilize ajan performans...