Skin wound healing involves a coordinated cellular response to achieve complete reepithelialisation. Elevated levels of reactive oxygen species (ROS) in the environment often pose hindrance resulting impaired process. Cerium oxide nanoparticles (CeNPs) have ability protect cells from oxidative damage by actively scavenging ROS. Furthermore, matrices like nanofibers also been explored for enhancing healing. In current study CeNP functionalised polycaprolactone (PCL)-gelatin nanofiber (PGNPNF)...

Present study demonstrates the fiber-optic localized surface plasmon resonance (LSPR) based sensitive biosensor for detection of Shigella bacterial species. The proposed sensor is comprised multi-core fiber (MCF) having seven cores arranged in a hexagonal shape and spliced with single-mode (SMF) efficient detection. An increase evanescent waves (EWs) coupling modes between MCF was achieved by etching process controlled manner. also increases refractive index sensitivity (RIS) sensor....

The purpose of this article is to propose an optical fiber sensor probe based on the localized surface plasma resonance (LSPR) technique for detection creatinine in aquaculture. sensing functionalized through use gold nanoparticles (AuNPs), niobium carbide (Nb2CTx) MXene, and creatinase (CA) enzyme. intrinsic total internal reflection (TIR) mechanism modified increase evanescent field intensity using a heterogeneous core mismatch tapering structure (i.e., convex fiber-tapered seven...

Alanine aminotransferase (ALT), a critical component of human blood, is inextricably associated with liver injury. The current study develops novel biosensor based on the localized surface plasmon resonance (LSPR) principle for detection ALT analytes at concentrations ranging from 0 to 1000 Units per liter (U/L). According authors' knowledge, this first time an optical fiber structure taper-in-taper has been developed biosensing applications. It fabricated using three-electrode semi-vacuum...

In this work, a localized plasmon-based sensor is developed for para-cresol (p-cresol) - water pollutant detection. A nonadiabatic [Formula: see text] of tapered optical fiber (TOF) has been experimentally fabricated and computationally analyzed using beam propagation method. For optimization sensor's performance, two probes are proposed, where probe 1 immobilized with gold nanoparticles (AuNPs) 2 the AuNPs along zinc oxide (ZnO-NPs). The synthesized metal nanomaterials were characterized by...

Glucose, an essential nutrient to the metabolism of organisms, is closely related human health. Here, a novel serial quadruple tapered structure-based localized surface plasmon resonance (LSPR) sensor employed achieve accurate detection glucose level in body. Gold nanoparticles (AuNPs) are immobilized on taper fiber (SQTF) induce LSPR. Furthermore, graphene oxide (GO) and multi-wall carbon nanotubes (MWCNTs) used increase binding sites enzymes improve sensing performance probe. In our work,...

In this work, authors have developed a portable, sensitive, and quick-response fiber optic sensor that is capable of detection Aflatoxins B1 (AFB1) quantitatively qualitatively. Using multi-mode (MMF) multi-core (MCF), the MMF-MCF-MCF-MMF structure based on symmetric transverse offset splicing waist-expanded taper fabricated. The evanescent waves are enhanced to form strong field by etching surface with hydrofluoric acid. To successfully excite localized plasmon resonance phenomenon, gold...

Histamine is a biologically active molecule that serves as reliable predictor of the quality fish. In this work, authors have developed novel humanoid-shaped tapered optical fiber (HTOF) biosensor based on localized surface plasmon resonance (LSPR) phenomenon to detect varying histamine concentrations. experiment, and distinctive tapering structure has been using combiner manufacturing system contemporary processing technologies. Graphene oxide (GO)/multi-walled carbon nanotubes (MWCNTs) are...

The development of a p-cresol biosensor for aquaculture, marine life, and healthcare applications is described in this study. based on localized surface plasmon resonance (LSPR) employs novel tapered-in-tapered fiber (TiTF) probe. Gold nanoparticles (AuNPs) copper oxide nanoflowers (CuO-NFs) TiTF structures are immobilized developed probe's performance was evaluated by measuring the response to variety solution concentrations. Combining AuNPs CuO-NFs improves sensitivity anti-interference...

Optical fiber sensors show potential for monitoring multiple parameters essential to the growth and health of fish, particularly pH value aquaculture medium. Two types optical sensors, using tapered silica single mode fibers with a Bragg grating inscribed D-shaped plastic (home-made reused) were produced. A pH-sensitive layer made polyaniline (PANI) was deposited on fibers' surface. The demonstrated reproducibility repeatability sensitivity −0.22 ± 0.02 dB/pH, −472 9 Counts/pH, −(26 2) × 102...

Aflatoxins are a kind of fungal toxin that causes great damage to humans and animals due its wide distribution, secretive nature, high toxicity. For the purpose achieving qualitative quantitative detection aflatoxin B1 (AFB1), novel tri-taper-in-taper fiber-optic structure based on core mismatch four-core fiber with multimode fiber-based WaveFlex biosensor is developed tested. The sensor probe's surface coated gold nanoparticles (AuNPs). Multi-walled carbon nanotubes zinc oxide sequentially...

In this work, a combination of simulation and experiment is used to analyze the distribution evanescent field in W-shaped optical fiber. A novel flexible fiber (FWOF) biosensor based on localized surface plasmon resonance (LSPR) effect (also known as WaveFlex biosensor) designed fabricated for detecting histamine food. First, gold nanoparticles (AuNPs) are immobilized FWOF probe's excite LSPR effect. Second, niobium carbide (Nb <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...

There is a strong and growing need to monitor stress biomarkers in human beings animals for real-time wellness assessment, which key indicator of health. Toward this, we report an optical fiber immunosensor based on laser-induced graphene (LIG) the potential quantification monitoring cortisol hormone. The developed sensors were created using Fabry-Pérot cavity principle. cavities filled with polyimide (PI) and, some cases, PI mixed gold nanoparticles. interferometers tested temperature...

Extensive use of nanomaterials in consumer products has invoked the concerns about interactions nanoparticles with living organisms (including microorganisms). Zinc oxide (ZnO NPs) are well known for their antibacterial effect due to reactive oxygen species (ROS) generation. Therefore, release into environment is expected raise major concern towards ecotoxicity. In present study, we have studied toxic ZnO NPs on Deinococcus radiodurans, which show extraordinary resistant from damaging...