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Total 28 results found since Jan 2013.
Fabrication of versatile polyvinyl alcohol and carboxymethyl cellulose-based hydrogels for information hiding and flexible sensors: Heat-induced adjustable stiffness and transparency
Int J Biol Macromol. 2023 Sep 18:126950. doi: 10.1016/j.ijbiomac.2023.126950. Online ahead of print.ABSTRACTWith the growing demand for wearable electronics, designing biocompatible hydrogels that combine self-repairability, wide operating temperature and precise sensing ability offers a promising scheme. Herein, by interpenetrating naturally derived carboxymethyl cellulose (CMC) into a polyvinyl alcohol (PVA) gel matrix, a novel hydrogel is successfully developed via simple coordination with calcium chloride (CaCl2). The chelation of CMC and Ca2+ is applied as a second crosslinking mechanism to stabilize the hydrogel at r...
Source: International Journal of Biological Macromolecules - September 20, 2023 Category: Biochemistry Authors: Yuanna Sun Fenling Shi Ruobing Tian Xiaoliang Zhao Qingshan Li Chen Song Ying Du Xinhai He Jun Fu Source Type: research
The environmental impact and economic feasibility assessment of composite calcium alginate bioplastics derived from Sargassum
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Akeem Mohammed, Keeran Ward, Koonyang Lee, Valerie Dupont For much of the Caribbean Region, plastic pollution and the persistence of the great Atlantic Sargassum belt lead to significant regional loss in biodiversity, employment and tourism. Yet, seaweeds such... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Green Chem. latest articles - June 12, 2023 Category: Chemistry Authors: Akeem Mohammed Source Type: research
Self-cementation of gold tailings activated by nonthermal plasma irradiated calcium (hydro)oxide
In this study, nonthermal plasma (NTP) irradiation was employed to activate traditional CaO to enhance its efficacy in alkali activation and further intensify the self-cementation of gold tailings. The solidification/stabilization (S/S) of the gold tailings-based matrix activated by NTP-CaO was better than that of CaO. The NTP irradiation enhanced the surface hydroxyl groups and oxygen atoms, decreased the binding energy, formed nanoparticles, and significantly changed the morphologies of the calcium activator. The dosage of the NTP-irradiated CaO (NTP-CaO) directly affected the self-cemented solidification/stabilization o...
Source: Environmental Pollution - March 15, 2023 Category: Environmental Health Authors: Tao Huang Lulu Zhou Chun-Hai Yang Shu-Wen Zhang Source Type: research
Isolated Mitochondrial Preparations and In organello Assays: A Powerful and Relevant Ex vivo Tool for Assessment of Brain (Patho)physiology
Curr Neuropharmacol. 2023 Mar 3. doi: 10.2174/1570159X21666230303123555. Online ahead of print.ABSTRACTMitochondria regulate multiple aspects of neuronal development, physiology, plasticity, and pathology through their regulatory roles in bioenergetic, calcium, redox, and cell survival/death signalling. While several reviews have addressed these different aspects, a comprehensive discussion focussing on the relevance of isolated brain mitochondria and their utilities in neuroscience research has been lacking. This is relevant because the employment of isolated mitochondria rather than their in situ functional evaluation, o...
Source: Current Neuropharmacology - March 5, 2023 Category: Drugs & Pharmacology Authors: Faraz Ahmad Siva Ramamorthy Mohammed Y Areeshi Ghulam Md Ashraf Shafiul Haque Source Type: research
The Relationship Between Usual Daily Physical Activity With Serum Markers Related to Bone Metabolism and Demographic Characteristics in Postmenopausal Women Aged 50-65 Years
CONCLUSION: Usual daily physical activity with any levels has no effect on bone markers except for calcium. Despite of the beneficial effects of PA, our findings showed that usual daily physical activity without increasing total PA cannot affect bone health. For maximal effects of PA on bone health, it seems that a degree of intensity, continuity, and regularity of PA programs should be considered to stimulate bone formation.PMID:35551114 | DOI:10.1123/jpah.2021-0495
Source: Health Physics - May 13, 2022 Category: Physics Authors: Saeedollah Azimi-Shomali Azizeh Farshbaf-Khalili Fariba Eslamian Neda Dolatkhah Nafiseh Ghassab-Abdollahi Source Type: research
Fight Aging! Newsletter, May 2nd 2022
In this study, we tested the therapeutic potential of VHHASC and a newly generated VHH against murine ASC (VHHmASC) to target ASC specks in vitro and in vivo. We show that pre-incubation of extracellular ASC specks with VHHASC abrogated their inflammatory functions in vitro. Recombinant VHHASC rapidly disassembled pre-formed ASC specks and thus inhibited their ability to seed the nucleation of soluble ASC. Notably, VHHASC required prior cytosolic access to prevent inflammasome activation within cells, but it was effective against extracellular ASC specks released following caspase-1-dependent loss of membrane integrity, an...
Source: Fight Aging! - May 1, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Rationale and design of the Brazilian Diabetes Study: a prospective cohort of type 2 diabetes
CONCLUSION: The BDS will be the first large population-based cohort dedicated to the identification of clinical phenotypes of T2D at higher risk of cardiovascular events. Data derived from this study will provide valuable information on risk estimation and prevention of cardiovascular and other diabetes-related events.PMID:35174749 | DOI:10.1080/03007995.2022.2043658
Source: Atherosclerosis - February 17, 2022 Category: Cardiology Authors: Joaquim Barreto Vaneza Wolf Isabella Bonilha Beatriz Luchiari Marcus Lima Alessandra Oliveira Sofia Vitte Gabriela Machado Jessica Cunha Cynthia Borges Daniel Munhoz Vicente Fernandes Sheila Tatsumi Kimura-Medorima Ikaro Breder Marta Duran Fernandez Thiag Source Type: research
Fight Aging! Newsletter, December 27th 2021
We report that whereas microglia are characterized by marked gene-level alterations related to negative regulation of protein phosphorylation and phagocytic vesicles, astrocytes show activation of enzyme- or peptidase-inhibitor signaling after detectable changes in BBB permeability. We also identify several genes enriched in these pathways that are notably altered after BBB breakdown. Our data reveal that microglia and astrocytes play an active role in maintaining BBB stabilization and corralling infiltrating cells, and thus might potentially function in ameliorating the lesions and neurologic disabilities in CNS diseases....
Source: Fight Aging! - December 26, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Yohimbine Directly Induces Cardiotoxicity on Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes
Cardiovasc Toxicol. 2021 Nov 24. doi: 10.1007/s12012-021-09709-3. Online ahead of print.ABSTRACTYohimbine is a highly selective and potent α2-adrenoceptor antagonist, which is usually treated as an adjunction for impotence, as well for weight loss and natural bodybuilding aids. However, it was recently reported that Yohimbine causes myocardial injury and controversial results were reported in the setting of cardiac diseases. Here, we used human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) as a model system to explore electrophysiologic characterization after exposure to Yohimbine. HiPSC-CMs were differ...
Source: Cardiovascular Toxicology - November 24, 2021 Category: Cardiology Authors: Yiqi Gong Li Yang Jun Tang Jijian Zheng Nevin Witman Philipp Jakob Yao Tan Minglu Liu Ying Chen Huijing Wang Wei Fu Wei Wang Source Type: research
