Cellular respiration produces reactive oxygen species (ROS), which can lead to oxidative stress and significant health issues, including chronic diseases and cancer. Antioxidants play a critical role in neutralizing ROS. This study investigates the physicochemical properties and antioxidant activities of honey sourced from five distinct agroecological zones in Cameroon. Multifloral honey samples (n = 9) were collected from local beekeepers and analyzed for parameters including density, pH, total sugar content, total phenolic content (TPC), flavonoid content (FC), and antioxidant potential (DPPH, FRAP, TAC). The samples ranged in color from light amber to dark amber, with densities between 1.43 and 1.51 g/mL and sugar contents of 70.33 %-83.16 %. pH levels varied from 3.30 to 4.10. Antioxidant analysis revealed phenolic contents ranging from 26.75 to 85.06 mg GAE/100 g and flavonoid contents between 5.22 and 14.47 mg QE/100 g. Significant differences in antioxidant activity were noted, particularly in correlation with color intensity and pH. Honeys with more reddish and greenish hues exhibited better FRAP values, while those with a pH around 4 showed improved DPPH activity. This preliminary study underscores the importance of regional differences in honey quality and its potential health benefits, advocating for further research on the diverse honey types in Cameroon.
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http://dx.doi.org/10.1016/j.heliyon.2024.e40232 | DOI Listing |
J Fluoresc
January 2025
Department of Stem Cell and Regenerative Medicine and Medical Biotechnology, Centre for Interdisciplinary Research, D. Y. Patil Education Society, Kolhapur, Maharashtra, India.
A straightforward one-step hydrothermal method is introduced for synthesizing highly efficient red fluorescence carbon dots (R-CQDs), utilizing Heena leaf (Lawsonia inermis) powder as the carbon precursor. The resulting R-CQDs exhibit excitation at 540 nm and emission at 675 nm, a high absolute photoluminescence (PL) with quantum yield of 40% in ethanol. Various physicochemical characterization was employed to confirm successful formation of R-CQDs including UV-Vis Spectroscopy, Fourier Transform Infrared (FT-IR) Spectroscopy, X-ray diffraction Spectroscopy, Transmission Electron Microscopy (TEM) and X-ray Photoelectron Spectroscopy.
View Article and Find Full Text PDFJ Oral Sci
January 2025
Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Jeonbuk National University.
Purpose: This study investigated the synergistic effects of reduced graphene oxide (RGO) on the antibacterial activity of three calcium hydroxide-based intracanal medicaments with different vehicles.
Methods: Multispecies biofilms were cultured in a bovine root canal model. Intracanal medicaments containing nonaqueous vehicles, including N-methyl-2-pyrrolidone (NMP; CleaniCal), propylene glycol (PG; UltraCal XS), and polyethylene glycol (PEG; Calcipex II), were placed in the model.
J Biomater Sci Polym Ed
January 2025
Novel Drug Delivery Systems Laboratory, Faculty of Pharmacy, Medical Sciences/University of Tehran, Tehran, Iran.
Analyzing the chemical composition of different kinds of acrylic cement is necessary to understand their properties and suitability for curing bone defects. Conducting various chemical tests can give valuable insight into the composition, viscosity, and performance characteristics of each kind of cement, Therefore, our study aimed to find safety standards and the effectiveness of these products for medical applications. The polymeric characterization was determined by Nuclear Magnetic Resonance (H-NMR) spectroscopy and Fourier-transform infrared spectroscopy (FTIR).
View Article and Find Full Text PDFJ Control Release
January 2025
Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA; Magee-Womens Research Institute, Pittsburgh, PA, USA; Department of Obstetrics, Gynecology & Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA. Electronic address:
User adherence contributes to the effectiveness of topical pre-exposure prophylactic products designed to protect against human immunodeficiency virus type 1 (HIV-1) infection. Long-acting approaches that do not require daily or coitally-dependent use could potentially improve user adherence. This study aims to develop a long-acting vaginal film to deliver an integrase inhibitor, MK-2048, for prevention of HIV-1 infection.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry 605014, India. Electronic address:
The study aims to evaluate how bacteriocin and extracellular polymeric substances (EPS) can influence the development of active packaging for food. The components might enhance the performance of packaging materials in terms of their physicochemical properties and their effectiveness in preserving food. Bacteriocin and EPS exert a significant effect in blocking the transmission of UV and visible light radiations.
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