Results 11 to 20 of about 129 (107)

Investigation of the inverse problem for the Arrhenius equation using the example of thermal degradation of spongin-based scaffolds

open access: yesScientific Reports, 2023
A mathematical description of the thermal degradation of spongin-based scaffolds is given. The Arrhenius integral was evaluated using the inverse problem approach, in which the unknown values were the activation energy E A , the pre-exponential factor A,
Sonia Żółtowska   +3 more
doaj   +3 more sources

Discovery of mammalian collagens I and III within ancient poriferan biopolymer spongin

open access: yesNature Communications
Spongin is a fundamental biopolymer that has played a crucial role in the skeletogenesis of keratosan sponges for over 800 million years. This biomaterial had so far remained chemically unidentified and believed to be an enigmatic type of halogenated ...
Hermann Ehrlich   +27 more
doaj   +5 more sources

Applicability of a Green Nanocomposite Consisted of Spongin Decorated Cu2WO4(OH)2 and AgNPs as a High-Performance Aptasensing Platform in Staphylococcus aureus Detection

open access: yesBiosensors, 2023
This study reports the synthesis of a nanocomposite consisting of spongin and its applicability in the development of an aptasensing platform with high performance.
Faezeh Shahdost-Fard   +7 more
doaj   +1 more source

Study of Marine Sponges Graphitization during Heat Treatment up to 1200 °C

open access: yesApplied Sciences, 2022
The results of studies of marine sponge carbonization processes during thermal treatment in an argon atmosphere in the temperature range from room temperature to 1200 °C are presented.
Olga V. Petrova   +8 more
doaj   +1 more source

Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil [PDF]

open access: yesNeotropical Biology and Conservation, 2021
Arinosaster patriciae gen. nov. et sp. nov. is the second continental sponge registered for a subterranean environment (cave habitat) in Brazil and the Neotropical Region. The sponges were recorded and collected in a 5m depth technical dive in a sinkhole
Cecília Volkmer-Ribeiro   +3 more
doaj   +3 more sources

The role and molecular mechanism of metabolic reprogramming of colorectal cancer by UBR5 through PYK2 regulation of OXPHOS expression study

open access: yesJournal of Biochemical and Molecular Toxicology, Volume 37, Issue 8, August 2023., 2023
Abstract Colorectal carcinoma (CRC) is the third most malignant tumor in the world, but the key mechanisms of CRC progression have not been confirmed. UBR5 and PYK2 expression levels were detected by RT‐qPCR. The levels of UBR5, PYK2, and mitochondrial oxidative phosphorylation (OXPHOS) complexes were detected by western blot analysis.
Rong Qin   +9 more
wiley   +1 more source

Optimized DNA isolation from marine sponges for natural sampler DNA metabarcoding

open access: yesEnvironmental DNA, Volume 5, Issue 3, Page 438-461, May 2023., 2023
Marine sponges have recently been recognized as natural samplers of environmental DNA (eDNA) due to their effective water filtration and their ubiquitous, sessile, and regenerative nature. We used a phased approach to investigate the influence of DNA isolation procedures on the biodiversity information recovered from sponges.
Lynsey R. Harper   +8 more
wiley   +1 more source

Potential Biomedical Applications of Collagen Filaments derived from the Marine Demosponges Ircinia oros (Schmidt, 1864) and Sarcotragus foetidus (Schmidt, 1862)

open access: yesMarine Drugs, 2021
Collagen filaments derived from the two marine demosponges Ircinia oros and Sarcotragus foetidus were for the first time isolated, biochemically characterised and tested for their potential use in regenerative medicine.
Marina Pozzolini   +11 more
doaj   +1 more source

Marine heatwaves drive recurrent mass mortalities in the Mediterranean Sea

open access: yesGlobal Change Biology, Volume 28, Issue 19, Page 5708-5725, October 2022., 2022
During the 2015‐2019 period, the Mediterranean Sea has experienced exceptional marine heatwaves conditions resulting in the onset of five consecutive years of widespread MMEs across the basin. These MMEs affected thousands of kilometers of coastline from the surface to 45 m depth, across a range of marine habitats and taxa (50 taxa across 8 phyla).
Joaquim Garrabou   +68 more
wiley   +1 more source

Collagenic architecture and morphotraits in a marine basal metazoan as a model for bioinspired applied research

open access: yesJournal of Morphology, Volume 283, Issue 5, Page 585-604, May 2022., 2022
A prototype of connective system, almost exclusively based on collagenic networks, is zoomed in the model sponge Ircinia retidermata (Porifera: Keratosa). We focused on topographic distribution, spatial layout, microtraits, and/or morphogenesis of these collagenic structures. Ectosome and outer endosome are the active fibrogenetic areas where exogenous
Renata Manconi   +6 more
wiley   +1 more source

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