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Polysaccharide based beads with unique porous structure have gained considerable interests due to their specific adsorption behaviors and biodegradability. The purpose of this paper was to develop hollow cellulose/carbon nanotubes composite beads with aligned porous structure which have potential applications in fast adsorption field. The composite beads were fabricated by ice template and freeze-drying technology. Different characterizations have proved that the carbon nanotubes and magnetic nanoparticles have been incorporated into the cellulose beads. Higher concentration of carbon nanotubes and cellulose would result in a larger diameter of the composite beads. The composite beads can effectively adsorb the methylene blue (MB). The pseudo-second-order model and Langmuir isotherm were best fitted to the adsorption. The composite beads showed a fast adsorption behavior towards MB with a t of 1.07 min obtained from pseudo-second-order model. The maximum adsorption capacity was 285.71 mg g at pH 7.0. The composite beads also showed good reusability and biodegradability. We anticipate that different polysaccharides based composite beads with aligned porous structure can be obtained through the similar methods and applied in adsorption fields.
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http://dx.doi.org/10.1016/j.ijbiomac.2021.03.194 | DOI Listing |
Front Microbiol
August 2025
BioDyMIA Research Unit, Université de Lyon, Université Claude Bernard Lyon 1, ISARA Lyon, Bourg-en-Bresse, France.
Bioprotective LAB3 cells that produce bacteriocin-like substances were entrapped in 4% (w/w) sodium alginate matrices, either with or without 10% (w/w) sodium caseinate. The effects of bead formulation-alginate alone or combined with caseinate, with or without the addition of 20% (w/w) MRS broth or M17 broth-on the culturability of LAB3 cells within the beads and their anti activity were assessed over 12 days of storage at 30 °C in closed bottles. Calcium-alginate-caseinate beads supplemented with MRS broth proved most effective in preserving both culturability and anti- activity.
View Article and Find Full Text PDFPLoS One
August 2025
China-Central Asia "Belt and Road" Joint Laboratory on Human and Environment Research, Key Laboratory of Cultural Heritage Research and Conservation, School of Cultural Heritage, Northwest University, Xi'an, China.
This study presents a systematic analysis of three glass beads excavated from Tomb M686 in the Qin Cemetery of Warring States Period (475 BC-207 BC) in Hejia,Zhouling. The aim is to reveal their material characteristics and weathering mechanisms. Using super-depth-of-field 3D video microscopy system (OM), X-ray fluorescence spectroscopy (XRF), and micro-Raman spectroscopy (Raman), all three glass beads were identified as the unique lead-barium silicate glass system of ancient China.
View Article and Find Full Text PDFInt J Biol Macromol
August 2025
Department of Biotechnology and Food Engineering, Guangdong Technion Israel Institute of Technology bda; Daxue Road, Jinping District, Shantou 515063, Guangdong Province, China; Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Insti
Alginate-based carriers are widely used in agriculture for the controlled release of nutrients, pesticides, and bioactive compounds. This study provides a holistic assessment of alginate carrier performance in soil by integrating physicochemical, microbiological, and ecological assays in soil. Two formulations were tested high-G (high proportion of guluronic acid) and high-M (high proportion of mannuronic acid) alginate macro-carriers.
View Article and Find Full Text PDFGels
August 2025
Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy.
Infection control and bleeding management in deep wounds remain urgent and unmet clinical challenges that demand innovative, multifunctional, and sustainable solutions. Unlike previously reported sodium alginate and silk fibroin-based gel formulations, the present work introduces a dual-functional system combining antimicrobial and haemostatic activity in the form of conformable aerogel beads. This dual-functional formulation is designed to absorb exudate, promote clotting, and provide localized antimicrobial action, all essential for accelerating wound repair in high-risk scenarios within a single biocompatible system.
View Article and Find Full Text PDFBio Protoc
August 2025
Conway Institute, School of Medicine, University College Dublin, Dublin, Ireland.
Chemically induced murine colitis models are widely used to understand intestinal homeostasis and inflammatory responses during acute and chronic gut inflammation, such as inflammatory bowel disease (IBD). Resident populations of immune cells, together with those recruited during an inflammatory response, maintain intestinal immunity by mounting an effective immune response to enteropathogenic microbes while at the same time maintaining tolerance against commensals. To better understand the disease mechanism, studying different immune cell populations and their dynamic changes during infection and inflammation is essential.
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