Carboxymethyl hemicellulose hydrogel as a fluorescent biosensor for bacterial and fungal detection with DFT and molecular docking studies

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 4, 2025

Abstract A new method was developed to quickly produce carboxymethyl hemicellulose (CM-Hemi) and fluorescent nitrogen-doped carbon dots (N–CDs) from sugarcane bagasse (SB). These materials were then combined with calcium chloride (CaCl₂) create hydrogel sensors antibacterial antifungal properties. The CM-Hemi@Ca-N–CDs effective against both Gram-negative ( Escherichia coli ) Gram-positive Staphylococcus aureus bacteria compared CM-Hemi@Ca which give no activity. Both hydrogels also exhibited properties Candida albicans . Molecular docking studies revealed that the had strong binding interactions protein (1.92 A°) compard (2.01 A°), aligned inhibition zone measurements test. fluorescence microscope differences in emitted light color when interacted different types of microorganisms, likely due variations their cell walls. Density functional theory (DFT) calculations indicate incorporation N–CDs into enhances its stability rigidity. This is evidenced by lower energy gap (E g ), higher electron affinity (μ), softness (S) hydrogel. Additionally, formation amide bonds between CM-Hemi contributes increased rigidity hydrogel.These findings supporting th effectiveness as an antibacterial/antifungal sensor.

Язык: Английский

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Improving acrylonitrile rubber properties by recycled nano graphene oxide prepared from sugarcane bagasse

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

Abstract Naturally occurring inexpensive substance is useful as a raw material like graphite. Graphene oxide (GO) made from sugarcane bagasse (SB) to create nano graphene (GO‐SB). Nitrile rubber (NBR) was used base matrix while (GO‐SB) filler combined at various loadings [2, 4, 6, 8, and 10 Part per hundred part of (phr)]. The impact the prepared loading on physicomechanical curing characteristics NBR nanocomposites examined evaluated. Transmission Electron Microscopy (TEM), x‐ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT‐IR) were estimate characterize investigated samples. Excellent dispersion (8 phr) in observed using scanning electron microscopy (SEM). agglomerations found be heterogeneous (10 phr). Curing characterizations showed that compounded with had larger maximum minimum torques, torque difference 8 phr, faster cure rate than unfilled compound. equilibrium swelling mechanical demonstrated reinforcing effect contained phr When content increased up Shore A hardness values increased. Highlights nanosized bagasse. verified nanoscale oxide. Nano ingredients are incorporated by mixer. Effect properties products have better physico properties.

Язык: Английский

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Novel microwave assisted carboxymethyl-graphene oxide and its hepatoprotective activity

BMC Pharmacology and Toxicology, Год журнала: 2024, Номер 25(1)

Опубликована: Авг. 13, 2024

Abstract This study reports a novel, eco-friendly; fast and cost-effective microwave method for synthesizing carboxymethylated graphene oxide (CMGO) from sugarcane residues. Fourier-transform infrared spectroscopy (FTIR) confirmed successful CMGO synthesis through the presence of characteristic peaks at 1567.93 1639.29 cm −1 (COONa vibrations) increased CH 2 intensity compared to unmodified (GO). Furthermore, derived residues demonstrated potential in mitigating side effects toxic materials like carbon tetrachloride (CCl 4 ). Treatment with partially reduced elevated levels liver enzymes (ALT AST) nitrogenous waste products (urea uric acid) CCl -induced damage models, suggesting an improvement function despite ongoing cellular damage.This work paves way sustainable economical approach produce functionalized promising biomedical applications alleviating toxin-induced injury. Graphical abstract

Язык: Английский

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Novel, Speedy, and Eco-Friendly Carboxymethyl Cellulose-Nitrogen Doped Carbon Dots Biosensors with DFT Calculations, Molecular Docking, and Experimental Validation

Gels, Год журнала: 2024, Номер 10(11), С. 686 - 686

Опубликована: Окт. 24, 2024

Carboxymethyl cellulose (CMC) was prepared from sugarcane bagasse (SB) in minutes using a novel microwave method. Additionally, nitrogen-doped carbon dots (N-CDs) were synthesized SB the same technique. These materials crosslinked with CaCl

Язык: Английский

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Antimicrobial Plectranthus amboinicus emulsions prepared with amphiphilic cellulose stearate

Euro-Mediterranean Journal for Environmental Integration, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 5, 2024

Язык: Английский

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Cellulosic schiff base hydrogel biosensor for bacterial detection with pH/thermo-responsitivity: DFT calculations and molecular docking

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 283, С. 137389 - 137389

Опубликована: Ноя. 12, 2024

Язык: Английский

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Fully printed all-resistive dual-mode sensor with ultra-low temperature coefficient of resistance for crosstalk-free detections of pressure and humidity

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159394 - 159394

Опубликована: Янв. 9, 2025

Язык: Английский

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Designing efficient lithium metal battery using hybrid layered nanoparticles of graphene oxide and MXene and thermoplastic polyurethane-polyethylene oxide blend with high ionic conductivity and stable cycling

Journal of Polymer Research, Год журнала: 2025, Номер 32(3)

Опубликована: Фев. 26, 2025

Язык: Английский

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Boosting Dielectric Properties of Polyethersulfone Membranes: A Strategy Using Cross-Linked Graphene Oxide/EDTA/Silane

ECS Journal of Solid State Science and Technology, Год журнала: 2025, Номер 14(3), С. 031007 - 031007

Опубликована: Март 1, 2025

We investigated development and characterization of composite membranes based on grafted graphene oxide (GO) with ethylenediamine tetraacetic acid (EDTA)/silane loaded onto polyethersulfone (PES) for dielectric applications. Fourier transform infrared analysis confirmed the presence oxygen-containing groups GO introduction new peaks corresponding to EDTA/silane in membrane. X-ray diffraction revealed a shift peaks, indicating successful modification. Raman spectroscopy showed an increase defect ratio (ID/IG) after modification, suggesting interaction between GO. Transmission electron microscopy is expected show morphological changes upon incorporation EDTA/silane. Scanning PES change surface morphology from smooth small pores non-smooth addition GO/EDTA/silane. UV–vis indicated red absorption peak GO/EDTA/silane compared GO, decrease oxygenated groups. Dielectric properties measurements demonstrated enhanced permittivity improved polarization response containing pristine The constant at 1 kHz 2.42 increased gradually 4.82 15% GO/EDTA/Silane-doped composition. This improvement attributed conductive network, high area, functional within

Язык: Английский

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Novel intelligent naked-eye food packaging pH-sensitive and fluorescent sulfur, nitrogen-carbon dots biosensors for tomato spoilage detection including DFT and molecular docking characterization

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 143330 - 143330

Опубликована: Апрель 1, 2025

Язык: Английский

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