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| http://dx.doi.org/10.1007/s00709-024-02016-y | DOI Listing |
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Manifestation of Rouse and Entanglement Dynamics in Non-Cross-Linked and Cross-Linked Polymers Studied by Field-Cycling and Multiple Quantum NMR.
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Nordbayerisches NMR-Zentrum, Universität Bayreuth, 95447 Bayreuth, Germany.
Rubbers prepared from technical poly(butadiene) and natural poly(isoprene) are studied by field-cycling (FC) H NMR relaxometry to elucidate the changes of the relaxation spectrum. Starting with the non-cross-linked polymer successively cross-links are introduced via sulfur or peroxide vulcanization. Applying an advanced home-built relaxometer allows one to probe entanglement dynamics in addition to Rouse dynamics.
View Article and Find Full Text PDFEnvironmental applications of metal-organic framework-based three-dimensional macrostructures: a review.
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Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, Zhejiang Normal University, Jinhua 321004, P. R. China.
Metal-organic frameworks (MOFs) hold considerable promise for environmental remediation owing to their exceptional performance and distinctive structure. Nonetheless, the practical implementation of MOFs encounters persistent technical hurdles, notably susceptibility to loss, challenging recovery, and potential environmental toxicity arising from the fragility, insolubility, and poor processability of MOFs. MOF-based three-dimensional macrostructures (3DMs) inherit the advantageous attributes of the original MOFs, such as ultra-high specific surface area, tunable pore size, and customizable structure, while also incorporating the intriguing characteristics of bulk materials, including hierarchical structure, facile manipulation, and structural flexibility.
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Department of Pharmaceutical Chemistry, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India.
The emergence of multidrug-resistant microbial strains poses a significant challenge to global public health. In response, researchers have been exploring innovative antimicrobial agents with enhanced efficacy and novel mechanisms of action. One promising approach involves the synthesis of hybrid molecules combining azetidinone and azole moieties, capitalizing on the respective antimicrobial properties of both structural elements.
View Article and Find Full Text PDFRural Communities in the Deep South: Examining the Relationship Between Social Function and General Health Perceptions in Older Black Americans.
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Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL, USA.
Background: Increased mortality in rural southern areas has persisted and worsened among older Black adults due to high prevalence of chronic conditions combined with limited healthcare access resulting from social and structural factors.
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Large‐scale validation of an improved and resource‐saving immunoprecipitation‐mass spectrometry assay for plasma amyloid‐β biomarkers in Alzheimer's disease.
Alzheimers Dement
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Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
Background: Amyloid β (Aβ) deposition in the brain is a pathological hallmark of Alzheimer's disease (AD). While immunoprecipitation‐mass spectrometry (IP‐MS) stands out as an accurate method for quantifying blood‐based Aβ peptides, its major limitations such as prolonged sample preparation, extensive analysis time, large specimen volume, and high costs, present opportunities for improvement. Consequently, we aimed to develop a novel plasma IP‐MS Aβ assay that employs simplified and significantly shorter analytical procedures, along with much‐reduced sample volumes.
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