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Aim: The study employed Response Surface Methodology (RSM) with a Central Composite Rotatable Design (CCRD) model to optimise the formulations of Levomilnacipran nanostructured lipid carriers (LEV-NLC).
Methods: This study utilised a CCRD (Central Composite Rotatable Design) with a three-factor factorial design and three levels. It examined the particle size, zeta potential, and entrapment efficiency of LEV-NLC in relation to three independent variables: the ratio of aqueous to organic phase (X1), the ratio of drug to lipid (X2), and the concentration of surfactant (X3).
Results: The results demonstrated that the most favourable composition could be achieved using Response Surface Methodology (RSM). The most effective composition for LEV-NLC consisted of a 1:1 ratio of aqueous to organic phase (X1), a 1:7 ratio of drug to lipid (X2), and a surfactant concentration (X3) of 0.5%. Under the optimised conditions, the LEV-NLC formulation resulted in a particle size of 148 nm, a zeta potential of 36 mV, and an entrapment efficiency of 88%. The optimised LEV-NLC was examined using Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), which revealed the presence of spherical particles. The total percentage of Levomilnacipran released from the NLC was 77% at pH 7.4 and 76% at pH 6.0 over 24 hours, exhibiting a sustained release profile that could enhance the therapeutic benefits of the drug.
Conclusion: This study demonstrated the effective application of RSM-CCRD for modelling LEVNLC.
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http://dx.doi.org/10.2174/0122117385396141250801060535 | DOI Listing |
Environ Sci Technol
September 2025
School of the Environment, The University of Queensland, Brisbane, Queensland 4072, Australia.
As the global urban heat island (UHI) effect intensifies, understanding how UHI intensity responds to its influencing factors changes is critical for designing effective mitigation strategies. We focused on global megacities, shifted the UHI intensity assessment from physical indicators to human-related parameters, and then evaluated how human-centered UHI intensity responded to influencing factor change. We verified a significant discrepancy between traditional UHI intensity and human-centered UHI intensity worldwide, an average absolute difference of 1.
View Article and Find Full Text PDFLangmuir
September 2025
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
Simultaneous sensing and quantification of pharmaceutically active compounds (PhACs) are crucial for protecting the environment and maintaining long-term ecological sustainability. This study focuses on the bio-based synthesis of BiS-ZnO nanocomposites (BiS-ZnO(bio)) using bio-extract for dual-analyte selective and simultaneous electrochemical monitoring of phenylbutazone (PBZ) and sulfamethoxazole (SMZ) in the environmental matrices. BiS-ZnO(bio) exhibited ZnO(bio) nanostructures embedded on BiS(bio) nanorods with an average rod length of 1409.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Science, LLP "Research and Production Enterprise "Innovator", Astana, Kazakhstan.
This study investigates the physicochemical, microbiological, and microstructural changes in soft wheat grain during germination under varying moisture conditions: moderately dry, moist, and wet. Pre-harvest sprouting can severely compromise grain quality and usability; however, understanding germination-induced changes offers insights into potential utilization strategies. Physical parameters-including thousand-kernel weight, test weight, and falling number-showed strong correlation with germination time, decreasing by 8.
View Article and Find Full Text PDFPLoS Genet
September 2025
Department of Biology/Chemistry, Division of Genetics, University of Osnabrück, Barbarastrasse, Osnabrück, Germany.
The small GTPase Rho5 has been shown to be involved in regulating the Baker's yeast response to stress on the cell wall, high medium osmolarity, and reactive oxygen species. These stress conditions trigger a rapid translocation of Rho5 and its dimeric GDP/GTP exchange factor (GEF) to the mitochondrial surface, which was also observed upon glucose starvation. We here show that rho5 deletions affect carbohydrate metabolism both at the transcriptomic and the proteomic level, in addition to cell wall and mitochondrial composition.
View Article and Find Full Text PDFPLoS One
September 2025
Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
Sea surface temperature of the Red Sea has increased by up to 0.45 °C per decade over the last 30 years, and coral bleaching events are becoming more frequent. A reef bleaching event was observed in October 2020, whereby some parts of the Red Sea experienced more than 12 °C-weeks.
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