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Tracking Cr(VI) removal with Spectral Induced Polarization under ZVI and AC Synergetic Remediation.
Environ Res
December 2024
School of Civil Engineering, Shandong University, Jinan 250061, China. Electronic address:
The structure and active components of the filling material play a critical role in the contamination remediation performance of permeable reactive barriers. However, current methods lack a comprehensive understanding of the structural evolution and long-term performance of these materials during remediation processes. This study utilizes column experiments combined with spectral induced polarization (SIP) monitoring to investigate the effectiveness of zero-valent iron (ZVI), activated carbon (AC), and their composite with sand in removing Cr(VI).
View Article and Find Full Text PDFA comparison of freeze- and air-dried chitosan salicylaldehyde/calcium oxide biocomposites for optimized removal of acid red 88 dye.
Int J Biol Macromol
December 2024
Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada.
Chitosan salicylaldehyde/calcium oxide nanoparticle (CS-SL/CaO) was synthesized by hydrothermal process and isolated via different drying processes, namely, air-drying (AD) and freeze-drying (FD). The physicochemical properties of freeze-dried CS-SL/CaO nanoparticle (CS-SL/CaO-FD) and air-dried CS-SL/CaO nanoparticle (CS-SL/CaO-AD) were compared. In particular, the adsorption properties reveal that the specific surface area of CS-SL/CaO-FD increased by ca.
View Article and Find Full Text PDFPTEN loss in glioma cell lines leads to increased extracellular vesicle biogenesis and PD-L1 cargo in a PI3K-dependent manner.
J Biol Chem
December 2024
Department of Molecular Medicine, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA; Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA. Electronic address:
Phosphatase and Tensin Homologue (PTEN) is one of the most frequently lost tumor suppressors in cancer and the predominant negative regulator of the PI3K/AKT signaling axis. A growing body of evidence has highlighted the loss of PTEN with immuno-modulatory functions including the upregulation of the programmed death ligand-1 (PD-L1), an altered tumor derived secretome that drives an immunosuppressive tumor immune microenvironment (TIME), and resistance to certain immunotherapies. Given their roles in immunosuppression and tumor growth, we examined whether the loss of PTEN would impact the biogenesis, cargo, and function of extracellular vesicles (EVs) in the context of the anti-tumor associated cytokine interferon-γ (IFN-γ).
View Article and Find Full Text PDFInnovative approaches to cationic and anionic (catanionic) amphiphiles self-assemblies: Synthesis, properties, and industrial applications.
Adv Colloid Interface Sci
December 2024
Department of Chemistry and Centre for Advance Study in Chemistry, Panjab University, Chandigarh, India. Electronic address:
Meeting the contemporary demand for the development of functional, biocompatible, and environment friendly self-assembled structures using efficient, cost-effective, and energy-saving methods, the field of colloids has witnessed a surge in interest. Research into cationic and anionic (catanionic) surfactant combinations has gained momentum due to their distinct advantages and synergistic properties in this context. Catanionic self-assemblies have emerged as promising contenders for addressing these requirements.
View Article and Find Full Text PDFOptimizing extraction conditions for isolation of antioxidant compounds from black rice bran using ultrasonic-assisted extraction and response surface methodology.
J Food Sci
December 2024
School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
Black rice bran (BRB), a valuable byproduct from the rice milling process, possesses numerous pharmacological activities, including antioxidant potential, but information regarding highly efficient extraction methods is scarce. To enhance the extraction efficiency, ultrasonic-assisted extraction coupled with Box-Behnken design (BBD) was used in this study to maximize the total phenolic content (TPC), total flavonoid content (TFC), total anthocyanin content (TAC), and antioxidant capacity of BRB extract. The BBD results showed that 57% ethanol at 50°C and pH 3.
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