Human fibroblast and mouse L929 cell interferons can be purified by adsoprtion to and subsequent elution from Controlled Pore Glass. Purification of 40 to 90-fold to specific activities of 1 to 5 times 10(6) units/mg of protein can be achieved in a single step, with good recovery of activity. Human leukocyte interferon does not bind to the glass and cannot be purified in this way.
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http://dx.doi.org/10.1099/0022-1317-33-3-517 | DOI Listing |
J Stem Cells Regen Med
November 2024
Medical Doctor Study Program, Faculty of Medicine, Universitas Nahdlatul Ulama, Surabaya, Indonesia.
Ultraviolet (UV) exposure causes direct and indirect damages to skin structures. Human adipose stem cell-conditioned medium (hASC-CM) is a collection of several soluble factors, such as cytokines, chemokines, and Growth Factors (GF), secreted by almost all living cells in the extracellular space which support wound healing and skin rejuvenation. To determine the effects of human adipose stem cell-conditioned medium (hASC-CM) in photoaged skin and evaluate photoaging improvement after treatment.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China. Electronic address:
In an effort to mitigate or reverse the pathological progression of early-stage osteonecrosis of the femoral head (ONFH), this study employed a promising strategy that involves the sustained delivery of osteogenic factors to augment core decompression, facilitated by the use of composite hydrogels. Specifically, a hydrogel was synthesized by blending chitosan, Pluronic F-127, and tripolyphosphate, utilizing both ionic bonding and copolymer micelle cross-linking techniques. This hydrogel demonstrated exceptional biocompatibility, temperature responsiveness, pH-dependent biodegradation, and controlled release properties.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON N6A 5B9, Canada. Electronic address:
Metal-organic frameworks (MOFs) have shown great promise as pH-responsive drug delivery systems, with considerable potential for targeted cancer therapy. In this study, we synthesized a novel curcumin-loaded MOF, named UWO-2 (CUR@UWO-2), and developed its biocomposite form, CS-κ-Cr/CUR@UWO-2, by coating it with chitosan (CS) and κ-carrageenan (κ-Cr). Structural analysis through powder X-ray diffraction (PXRD) confirmed the successful synthesis of UWO-2 and the incorporation of CUR within the MOF structure.
View Article and Find Full Text PDFLangmuir
January 2025
Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China.
Electrochemical tests combined with surface characterization techniques were used to investigate the corrosion evolution of passivated Q355B steel under the dual action of pH and chloride. The results show that the Q355B passivation film in simulated concrete pore solution is the amorphous oxide layer, and pH and Cl have closely coupled effects on Q355B corrosion. Meanwhile, the impact of pH is more significant: the decrease in pH shifts from pitting to uniform corrosion.
View Article and Find Full Text PDFNanoscale
January 2025
Chemical Engineering Program, Department of Advanced Science and Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8527, Japan.
Highly ordered porous structured particles comprising three-way catalyst (TWC) nanoparticles have attracted attention because of their remarkable catalytic performance. However, the conditions for controlling their pore arrangement to form interconnected pore structures remain unclear. In particular, the correlation between framework thickness (distance between pores) or macroporosity and the diffusion of gaseous reactants to achieve a high catalytic performance has not been extensively discussed.
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