255 results match your criteria: "Institute for Color[Affiliation]"

This study focuses on enhancing solar energy capture efficiency by introducing innovative hybrid nanofluids for use in solar thermal collectors, whose performance largely depends on the absorption properties of the working fluid. The newly developed hybrid nanofluids, MXene/NH2-UiO66 (Zr) (noted as MX/UO66) and MXene/MIL-88B (Fe) (noted as MX/ML88), were synthesized using an in-situ solvothermal method, combining annealed Ti3C2Tx MXenes with water-stable metal-organic frameworks (MOFs). These nanofluids achieved high efficiency at low concentrations, providing both economic and performance benefits.

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Developing a New Method of Transformation for Obtaining XYZ Color Values from RGB Images for Agricultural Applications.

Sensors (Basel)

December 2024

Research Federation of Visual and Cultural Sciences-SCV, FR CNRS 2052, 59100 Lille, France.

The extraction of device-independent color values from affordable and accessible digital images based on a standard color space system is crucially necessary for agricultural applications, where color information for plant monitoring or diagnostics is required. This study aimed to develop a transformation matrix for obtaining XYZ color coordinates from the RGB values of digital images for agricultural applications. The calibration procedure was based on Munsell and Macbeth color charts.

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MXene nanosheets have recently become a focus of research for corrosion protection due to their two-dimensional, sheet-like structure and distinct physicochemical characteristics. Nevertheless, their susceptibility to restacking and oxidation restricts their practical applications. To address this, the study proposes a custom hybrid structure by growing molybdenum disulfide (MoS) nanoparticles on the TiC MXene nanosheets (MX/MS) to prevent oxidation and restacking.

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Article Synopsis
  • Green corrosion inhibitors like adiantum capillus-veneris (ACV) extract are explored as eco-friendly alternatives to synthetic materials for preventing mild steel corrosion in hydrochloric acid.
  • The study utilized electrochemical techniques, including electrochemical impedance spectroscopy (EIS) and polarization, to assess ACV's effectiveness, finding an impressive 88% corrosion inhibition at 800 ppm.
  • Advanced analysis, including machine learning models, confirmed ACV’s role as a mixed inhibitor and demonstrated how optimization techniques can effectively predict corrosion resistance.
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Purpose: This study aimed to evaluate the accuracy and precision of two smartphone colorimeter apps, Color Grab, and Color Picker, in measuring forehead skin color and to compare their readings with those from a spectrophotometer.

Materials And Methods: Fifty participants (26 males, 24 females; median age 23 years, range 21-45) were included. Using a smartphone camera, images of forehead skin were captured, and CIELAB color values were reported by both apps.

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In addition to the basic and main parts of hospital equipment, 316 L stainless steel is widely utilized in futures such as nails and screws, wires and medical bone clips, dental implants, heart springs (stents), needles, surgical scissors, etc. In the present study, the electrophoretic deposition of a composite based on chitosan (CS), gelatin, nano and microparticles of hydroxyapatite on a 316 L stainless steel substrate was investigated. Hydroxyapatite particles are added to it due to the ossification abilities of steel and due to an enhanced adhesion and bone production, CS and biocompatible gelatin polymer particles were also added to hydroxyapatite.

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The development of sustainable and efficient electrochemical processes is crucial for addressing global challenges related to water scarcity. In this study, we present a novel 3D core-shell electrocatalyst, Pt@ZnAl-LDH, supported on low-grade charcoal (LGC), which exhibits exceptional electrocatalytic activity for the degradation and decolorization of dye and the electrocatalytic conversion of glycerol to valuable C chemicals. The electrocatalytic degradation of methylene blue dye from water was investigated with a focus on the impact of temperature, pH, and dye concentration.

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Advanced multi-functional epoxy coating with physical barrier/shielding against corrosive species, self-repairing-capability/active anti-corrosive behavior, abrasion resistance, and thermomechanical durability was established in this study. For this purpose, zinc/l-cysteine (ZC) inbuilt pH-sensitive covalent organic framework (COF) decorated two dimensional (2D) layered amino-functionalized (Si) oxidized hexagonal boron nitride (ZC-COF-Si-Oh-BN) container was prepared. Different analyses such as FT-IR, XRD, BET, XPS, TGA, TEM, and FE-SEM were utilized to evaluate the synthesized containers and pristine materials.

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The current investigation has utilized a simple and constructive stratified method to synthesize a binary (Cs/Z-8: chitosan (Cs) and zeolitic imidazolate framework-8 (Z-8)) and ternary Cs/Z-8/Z-67 (Z-67: ZIF-67) biocomposites at room temperature. A certain amount of Cs/Z-8 (0.05, 0.

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Advances in stimuli-responsive gold nanorods for drug-delivery and targeted therapy systems.

Biomed Pharmacother

November 2024

Clinical Biomechanics and Ergonomics Research Center, AJA University of Medical Sciences, Tehran, Iran; Research Center of Aerospace Medicine, AJA University of Medical Sciences, Tehran, Iran. Electronic address:

Article Synopsis
  • - Gold nanorods (AuNRs) are gaining attention in the biomedical field due to their unique properties that allow for advanced treatments using various stimuli like magnetic fields, pH, and light.
  • - These nanorods are versatile for targeted therapy, imaging, and drug delivery, with the potential for enhanced control when using dual or multi-stimuli responses.
  • - The review summarizes the improvements in therapeutic effectiveness and drug release control with AuNRs, discusses recent design strategies, and addresses current challenges and future prospects for clinical use.
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Article Synopsis
  • - The study explores the use of gemini surfactants (GSs) as a pH-sensitive delivery system for combining curcumin (Cur) and tamoxifen citrate (TMX) in cancer treatment, aiming to enhance efficacy and reduce side effects in breast cancer cells (MCF-7 and MDA-MB-231).
  • - It details the synthesis and characterization of nanoparticles (NPs) through techniques like FTIR, XRD, and TEM, which revealed successful formation with a size of approximately 252 nm and effective drug loading capacities of 93.84% for TMX and 90.18% for Cur.
  • - The results demonstrated controlled drug release at a lower pH over 72
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Objective: This study assessed the effect of the anodization of titanium abutments on the color parameters and color difference of lithium disilicate (LDS) all-ceramic crowns.

Materials And Methods: In this study, 19 straight abutments were divided into two groups: anodized (n = 9) and non-anodized control (n = 9), with one hybrid zirconia abutment as a reference. Anodization was achieved by applying 63 V energy using seven 9 V flat batteries in series, with an electrolyte solution comprising 1 g trisodium phosphate in 250 mL distilled water for 5 s, resulting in a gold-yellow color.

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Purpose: Receptor-mediated transcytosis (RMT) is a more specific, highly efficient, and reliable approach to crossing the blood-brain-barrier (BBB) and releasing the therapeutic cargos into the brain parenchyma.

Methods: Here, we introduced and characterized a human/mouse-specific novel leptin-derived peptide using , and experiments.

Results: Based on the bioinformatics analysis and molecular dynamics (MD) simulation, a 14 amino acid peptide sequence (LDP 14) was introduced and its interaction with leptin-receptor (ObR) was analyzed in comparison with an well known leptin-derived peptide, Lep 30.

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Herein, a highly efficient colorimetric chemosensor incorporating ion-imprinted electrospun nanofiber was developed for the removal and detection of Cu ions. In this regard, PVA/chitosan composites were used as the polymeric matrix, and 1-(2-pyridylazo)-2-naphthol was employed for complex formation. The prepared naked-eye sensor was characterized using Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, scanning electron microscopy, atomic force microscopy, differential scanning calorimetry, thermogravimetric analysis, and X-ray diffraction analysis, revealing the morphological, structural, and molecular properties of the sensor.

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Introduction: One of the most common problems in endodontic treatments is post-treatment pain, and sealers might be one of the factors influencing the degree of pain following root canal therapy. The purpose of this study is to compare pain following endodontic treatment using an AH-26 resin sealer against the Resil experimental sealer in mandibular molars with irreversible pulpitis.

Materials And Methods: One hundred patients with irreversible pulpitis in the mandibular first or second molar were randomly divided into two groups (=50) based on the type of sealer applied.

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The term "biomass" encompasses all substances found in the natural world that were once alive or derived from living organisms or their byproducts. These substances consist of organic molecules containing hydrogen, typically oxygen, frequently nitrogen, and small amounts of heavy, alkaline earth and alkali metals. Magnetic biochar refers to a type of material derived from biomass that has been magnetized typically by adding magnetic components such as magnetic iron oxides to display magnetic properties.

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The presence of tetracycline and dye as organic contaminants has led to the poisoning of wastewater. The aim of this study is to synthesize a novel biocomposite material by decorating natural starch polymer granules with metal-organic framework (MIL100) and cobalt ferrite magnetic (CoFeO) nanoparticles. The synthesized ternary magnetic biocomposite (Starch/MIL100/CoFeO) was used for the photocatalytic degradation of methylene blue (MB) and tetracycline (TCN) using LED visible light.

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There has been significant attention on the efficient degradation of pollutants in wastewater using metal-organic frameworks (MOFs) photocatalytic methods over the past decade. Herein, we examined the elimination of two different types of water-contaminating dyes, specifically cationic dye methylene blue (MB) and anionic dye methyl orange (MO), through the application of bimetal Cu/Ni-BTC@SiO MOF as high performance photocatalyst. The bimetal Cu/Ni-BTC@SiO photocatalyst was synthesized and characterized by XRD, FTIR, SEM, TEM, TGA, BET, DRS, and VSM techniques.

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The production of antibacterial colored textiles using nanomaterials (NMs) has become an ideal goal from both a research and industrial perspective. In this study, the clean synthesis and characterization of silver nanoparticles (AgNPs) on polyamide fabrics were performed using mullein extract for the first time. Natural dyes were extracted from mullein leaves using an ultrasonic method, with an optimal amount of 15 g/L.

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Background: Considering the extensive use of bleaching agents and the occurrence of side effects such as enamel demineralization, this study aimed to assess the enamel changes of bleached teeth following the experimental application of chitosan-bioactive glass (CH-BG).

Methods: In this in vitro study, CH-BG (containing 66% BG) was synthesized and characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Thirty sound human premolars were bleached with 40% hydrogen peroxide, and the weight% of calcium and phosphorus elements of the buccal enamel surface was quantified before and after bleaching by scanning electron microscopy/ energy-dispersive X-ray spectroscopy (SEM, EDX).

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In line with global goals to solve marine biofouling challenges, this study proposes an approach to developing a green synthesis inspired by natural resources for fouling-resistant behavior. A hybrid antifouling/foul release (HAF) coating based on poly(dimethylsiloxane) containing a green synthesized nanocomposite was developed as an environmentally friendly strategy. The nanocomposites based on graphene oxide (GO) and using marine sources, leaves, and stems of mangroves (), brown algae (), and zinc oxide were compared.

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Energy-efficient sol-gel synthesis was achieved through the microwave assisted self-combustion route to produce hexagonal Tungsten oxide semiconductor (WO). The photocatalytic activity was enhanced by doping Cobalt (Co) into the crystalline structure of the nanoparticle, which were subsequently sintered at 400 °C for an hour. The structural and morphological properties of the Co-doped WO were revealed using X-ray diffraction (XRD) characterization.

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Objectives: The positive effects of strontium on dental and skeletal remineralization have been confirmed in the literature. This study aimed to assess the properties of a calcium silicate cement (CSC) containing a sintered strontium silicate phase.

Materials And Methods: The calcium silicate and strontium silicate phases were synthesized by the sol-gel technique.

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Extraction of Covid-19 drug (Favipiravir) from plasma samples by yolk-shell mesoporous silica before HPLC-MS/MS determination.

J Pharm Biomed Anal

February 2024

Food and Drug Safety Research Center, Tabriz University of Medical Science, Tabriz, Iran; Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. Electronic address:

Article Synopsis
  • A simple, cost-effective dispersive solid phase extraction method was developed using SiO @MCM-41-CoO yolk shell as a sorbent for extracting favipiravir from plasma samples.
  • Optimization of the extraction involved varying factors like sorbent amount, pH, and adsorption/desorption times, achieving an efficient extraction process.
  • The method demonstrated a high sensitivity with a detection limit of 0.15 μg/L, a wide linear range, and showed successful application in measuring favipiravir in plasma with recoveries between 87-105%.
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Agricultural waste is an unwanted material that is not only unmarketable, but also has secondary costs such as environmental pollution. Oleaster, also known as olive Russian fruit, has various uses, but it also produces waste such as seeds and peels. Oleaster fruit and all its parts are tannin rich, which can be utilized as natural mordant.

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