Hyaluronan (HA) is an ubiquitous extracellular matrix polymer that plays many roles in health and disease. The ability to view the spatial and temporal expression of HA in tissues and on/in cells has provided researchers with insights into the tremendously diverse biological processes in which HA is involved. Biochemical extraction, quantity, and size measurement of HA can tell part of the story, but these techniques are incomplete in placing HA at the scene of a biological event and determining which other molecules are likely to be cooperating. HA, however, is not immunogenic, so preparing antibodies for histochemistry is problematic. Fortunately, a probe for HA was devised based on the HA binding region of aggrecan, and today this probe is commercially available and very useful for histochemistry. This article discusses the conditions and considerations that the authors' lab and others have developed for optimal HA staining in many tissues and cell types.
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http://dx.doi.org/10.1369/0022155410397760 | DOI Listing |
Sci Rep
January 2025
Research Center for Applied Chemistry, Blvd Enrique Reyna 140, San José de los Cerritos, Saltillo, 25294, Mexico.
As the rubber industry seeks sustainable alternatives to mitigate its environmental impact, this study introduces a biobased approach using polyfarnesene rubber reinforced with plasma-modified cellulose nanocrystals (MCNC) and nanofibers (MCNF). The nanocellulose was modified by plasma-induced polymerization using trans-β-farnesene and was characterized by FTIR, XPS, XRD, TGA, and SEM to confirm the grafting of farnesene-derived polymer chains onto the cellulose surface, demonstrating the successful modification and integration of the nanoparticles. Polyfarnesene bio-based rubbers were synthesized through two different polymerization techniques: solution-based coordination polymerization (PFA1) and emulsion-based free radical polymerization (PFA2).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar University, PO Box 26, Bahir Dar, Ethiopia; Faculty of Production and Power Engineering, University of Agriculture in Krakow, Balicka 116B, 30-149 Krakow, Poland.
With the worldwide transformation to a circular and low-carbon economy, the demand for sustainable materials has skyrocketed in recent years. Of various methods, sustainable and biodegradable biopolymers derived from renewable bioresources have received significant interest. Synthetic biodegradable biopolymers offer tremendous advantages over natural biodegradable biopolymers due to their stability, flexibility, and a wide range of achievable properties to fit several applications.
View Article and Find Full Text PDFEnviron Monit Assess
January 2025
Department of Botany, Bacha Khan University, Charsadda, Charsadda, 24420, Khyber Pakhtunkhwa, Pakistan.
Wastewater is commonly contaminated with many pharmaceutical pollutants, so an efficient purification method is required for their removal from wastewater. In this regard, an innovative tertiary Se/SnO@CMC/Fe-GA nanocomposite was synthesized through encapsulation of metal organic frameworks (Fe-glutaric acid) onto Se/SnO-embedded-sodium carboxy methyl cellulose matrix to thoroughly evaluate its effectiveness for adsorption of levofloxacin drug from wastewater. The prepared Se/SnO@CMC/Fe-GA nanocomposite was analyzed via UV-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermo gravimetric analysis (TGA), energy dispersive X-ray (EDX), and X-ray diffraction (XRD) to valuate optical property, size, morphology, thermal stability, and chemical composition.
View Article and Find Full Text PDFAnalyst
January 2025
Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu Province 215123, China.
The choices of matrices and protocols for sample deposition are critical factors, which impact each other in the matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI). Previous reports on MALDI MS matrices have only compared their performances in terms of their MS signal intensities and provided optical microphotos or MALDI MS images of sample spots but typically lacked quantitative evaluation. Therefore, there is an urgent need to develop a multivariate model to evaluate the performance of different combinations of matrices and sample protocols.
View Article and Find Full Text PDFMethods Protoc
January 2025
Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, UMR 1366, OENO, ISVV, F-33882 Villenave d'Ornon, France.
Procyanidins are widely distributed in plant-derived foods, and consist of flavanol oligomers and polymers. Recently, the crown procyanidin sub-family, characterised by a unique macrocyclic structure, has been identified in grapes and wine. This study reports the development and validation of a rapid and quantitative analytical method measuring crown procyanidin concentration in red and white wines using ultra-high-performance liquid chromatography (UHPLC) coupled with a Q-TOF mass spectrometer.
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