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Alkali and sulfate effects on mechanical properties and microscopic mechanisms of slag and fly ash geopolymers.
Sci Rep
January 2025
College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, People's Republic of China.
Aiming at the problem that it is difficult to realize low-cost, high-performance and large-scale utilization of cementitious materials prepared from bulk solid wastes, this paper constructs a set of composite cementitious system based on alkaline activation of slag and fly ash (FA) by calcium carbide slag (CCS) and synergistic activation of sodium sulfate (NaSO) as a chemical dopant. The influence of factors such as solid waste type, mixing ratio, and NaSO content on the mechanical properties of composite cementitious systems was investigated by assessing compressive strength and analyzing microstructure using XRD, SEM-EDS, and FTIR. The test results indicate that CCS and NaSO exert significant influences on the strength of the composite cementitious system.
View Article and Find Full Text PDFBifunctional performance of cellulose nanofibers grafted with polyhexamethylene guanidine in Pickering emulsion: Antibacterial activity and interfacial stability.
Int J Biol Macromol
January 2025
School of Environment and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 310023, China.
This study developed the multifunctional cellulose nanofibers (CNFs) as emulsifier for preparation of antibacterial, ultrastable and non-toxic emulsion. To achieve these properties, CNFs were oxidated using sodium periodate to introduce aldehyde groups, which served as Schiff-base reaction sites for amino groups of polyhexamethylene guanidine (PHMG), yielding PHMG-grafted CNFs (PCNFs). The modified CNFs retained good emulsification ability while acquiring antibacterial properties.
View Article and Find Full Text PDFDevelopment of multifunctional PAA-alginate-carboxymethyl cellulose hydrogel-loaded fiber-reinforced biomimetic scaffolds for controlled release of curcumin.
Int J Biol Macromol
January 2025
MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea; Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea; Center for Next-Generation Sensor Research and Development, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea. Electronic address:
Critical-sized bone defects in osteosarcoma treatment demand multifunctional scaffolds that must effectively integrate two key functions, promoting osteogenesis and delivering targeted chemoprevention. This study introduces a dual-component system featuring pH-responsive hydrogels and hydroxyapatite-based fiber-reinforced biomimetic scaffolds designed for controlled and localized curcumin delivery, while addressing its solubility and stability issues. The hydrogel system comprises a double network of polyacrylic acid, sodium alginate, carboxymethyl cellulose, and potato starch, specifically modified to encapsulate curcumin.
View Article and Find Full Text PDFSodium fluorescein video Angiography-Assisted clipping of intracranial Aneurysms: A systematic review and Meta-Analysis.
J Clin Neurosci
January 2025
Department of Neurosurgery, Lenox Hill Hospital/Northwell Health, New York, NY, USA.
Objectives: Ensuring aneurysm exclusion while maintaining vessel patency is crucial during intracranial aneurysm clipping. Although digital subtraction angiography (DSA) is the gold standard for intraoperative vascular imaging, some centers have reported using fluorescein sodium video angiography (FNa-VA). However, a synthesis of these findings is still lacking.
View Article and Find Full Text PDFSodium butyrate regulates macrophage polarization by TGR5/β-arrestin2 in vitro.
Mol Med
January 2025
Department of Critical Care Medicine, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang, Wuhan, 430060, Hubei, China.
Background: Macrophages play an important role in the pathogenesis of ulcerative colitis (UC). We will explore the effects of sodium butyrate (SB) on macrophage function.
Methods: The targets of butyric acid were identified using SwissTargetPrediction database and surface plasmon resonance (SPR).
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