It was shown that exogenous inorganic phosphate can be incorporated into newly synthesized phosphatidylinositol-4,5-bisphosphate without any participation of ATP.
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A novel polysaccharide in the envelope of influences the septal secretion of preproteins with a YSIRK/GXXS motif.
J Bacteriol
January 2025
Department of Microbiology, Howard Taylor Ricketts Laboratory, The University of Chicago, Chicago, Illinois, USA.
Unlabelled: Bacteria transport proteins across the plasma membrane to assemble their envelope, acquire nutrients, and establish appropriate interactions with their environment. The majority of these proteins are synthesized as precursors with a cleavable N-terminal signal sequence for recognition by the Sec machinery. In , a small subset of secreted precursors carries a YSIRK/GXXS motif.
View Article and Find Full Text PDFPreparation and Adsorption Properties of Sodium Trimetaphosphate Crosslinked Porous Corn Starch.
Biopolymers
March 2025
Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, People's Republic of China.
The crosslinked porous corn starch was prepared by two steps: the native corn starch was hydrolyzed by α-amylase and glucoamylase, then the porous corn was crosslinked by sodium trimetaphosphate (STMP). The morphology and size of granules, spherulites, crystal type, molecular structure, swelling properties, thermal stability and adsorption properties of the crosslinked porous starch were investigated. The results indicated that a lot of holes formed in the porous starch, and the particle size of starch granules decreased.
View Article and Find Full Text PDFEarly osteogenic differentiation of human dental stem cells by gelatin/calcium phosphate- Punica granatum nanocomposite scaffold.
BMC Biotechnol
January 2025
Department of Oral Science and Translation Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, 33314, USA.
Background: Tissue engineering for bone regeneration aims to heal severe bone injuries. This study aimed to prepare and assess the early osteogenic differentiation effects of a gelatin/calcium phosphate- Punica granatum nanocomposite scaffold on stem cells from human exfoliated deciduous (SHED) and human dental pulp stem cells (HDPSCs).
Methods: The electrospinning method was used to prepare a gelatin/calcium phosphate nanocomposite scaffold containing pomegranate (Punica granatum) extract.
Biomineralized and metallized small extracellular vesicles encapsulated in hydrogels for mitochondrial-targeted synergistic tumor therapy.
Acta Biomater
January 2025
Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, P. R. China. Electronic address:
Targeted organelle therapy is a promising therapeutic method for significantly regulating the tumor microenvironment, yet it often lacks effective strategies for leveraging synergistic enhancement effect. Engineered small extracellular vesicles (sEVs) are expected to address this challenge due to their notable advantages in drug delivery, extended circulation time, and intercellular information transmission. Herein, we prepare sEVs with pH and photothermal dual-responsiveness, which are encapsulated with hydrogels for a quadruple-efficient synergistic therapy.
View Article and Find Full Text PDFInfluence of heat treatment method on selected physicochemical and biological properties of fluoride-substituted calcium apatite.
Acta Bioeng Biomech
September 2024
Department of Biochemistry and Biotechnology, Medical University of Lublin, Lublin, Poland.
: The synthesis of fluoridated apatite consists of several stages, among which the heat treatment has a significant impact on the physical and chemical properties. The present study aims to elucidate the influence of two different sintering methods on fluoride-substituted apatite properties. : For this purpose, a two F-substituted apatites were produced by heat treatment in different ways called "rapid sintering" and "slow sintering".
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