Adv Sci (Weinh)
November 2024
In the face of exponential data growth, DNA-based storage offers a promising solution for preserving big data. However, most existing DNA storage methods, akin to traditional block printing, require costly chemical synthesis for each individual data file, adopting a sequential, one-time-use synthesis approach. To overcome these limitations, a novel, cost-effective "DNA-movable-type storage" system, inspired by movable type printing, is introduced.
View Article and Find Full Text PDFThe low photogenerated carrier separation and transport ability of the photocatalyst are the main factors inhibiting the photocatalytic activity. The construction of composite photocatalysts can effectively improve the efficiency of photogenerated carriers. However, the problem of reduced photocatalyst stability and catalytic activity due to easy separation of unstable composite interfaces has not been well solved for a long time.
View Article and Find Full Text PDFBackground: cfDNA fragmentomics-based liquid biopsy is a potential option for noninvasive bladder cancer (BLCA) detection that remains an unmet clinical need.
Methods: We assessed the diagnostic performance of cfDNA hotspot-driven machine-learning models in a cohort of 55 BLCA patients, 51 subjects with benign conditions, and 11 healthy volunteers. We further performed functional bioinformatics analysis for biological understanding and interpretation of the tool's diagnostic capability.
Using Ni(II) as the catalyst, electron-deficient 3,5-dimethylacryloylpyrazole olefin was reacted with ,-diarylnitrones alone for 10 min to prepare novel five-member heterocyclic products, 4-3,5-dimethylacryloylpyrazole isoxazolidines with 100% regioselectivity and up to 99% yield. And then, taking these cycloadducts as substrates, six kinds of derivatization reactions, like ring-opening, nucleophilic substitution, addition-elimination and reduction, were studied. Experimental results showed that all kinds of transformations could obtain the target products at a high conversion rate under mild conditions, a finding which provided the basic methods for organic synthesis methodology research based on an isoxazolidine skeleton.
View Article and Find Full Text PDFHarvesting robots had difficulty extracting filament phenotypes for small, numerous filaments, heavy cross-obscuration, and similar phenotypic characteristics with organs. Robots experience difficulty in localizing under near-colored backgrounds and fuzzy contour features. It cannot accurately harvest filaments for robots.
View Article and Find Full Text PDFColony-stimulating factor 1 receptor (CSF1R) is a type III receptor tyrosine kinase that is crucial for immune cell activation, survival, proliferation, and differentiation. Its expression significantly increases in macrophages during inflammation, playing a crucial role in regulating inflammation resolution and termination. Consequently, CSF1R has emerged as a critical target for both therapeutic intervention and imaging of inflammatory diseases.
View Article and Find Full Text PDFThe hexaploid sweetpotato (Ipomoea batatas) is one of the most important root crops worldwide. However, its genetic origin remains controversial, and its domestication history remains unknown. In this study, we used a range of genetic evidence and a newly developed haplotype-based phylogenetic analysis to identify two probable progenitors of sweetpotato.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
June 2023
Profenofos (PFF) is an organophosphorus pesticide frequently detected in surface waters, soil habitats, and even biota. Some studies have demonstrated the potential risks of PFF to aquatic organisms. However, most of these studies were focused on its acute rather than chronic impacts, and the subjects are usually large vertebrates.
View Article and Find Full Text PDFThe positron emission tomography (PET) molecular imaging technology has gained universal value as a critical tool for assessing biological and biochemical processes in living subjects. The favorable chemical, physical, and nuclear characteristics of fluorine-18 (97% β decay, 109.8 min half-life, 635 keV positron energy) make it an attractive nuclide for labeling and molecular imaging.
View Article and Find Full Text PDFSweetpotato (Ipomoea batatas (L.) Lam.) is one of the most important root crops cultivated worldwide.
View Article and Find Full Text PDFInt J Environ Res Public Health
April 2022
Three soil samples from a chromium (Cr)-contaminated field were classified into five particle fractions (i.e., 0-50 μm, 50-100 μm, 100-250 μm, 250-500 μm, and 500-1000 μm) and were further characterized to study their physicochemical properties and Cr bioaccessibility.
View Article and Find Full Text PDFBackground: Since December 2019, COVID-19, caused by the new coronavirus (SARS-CoV-2), posed a serious threat to human health. On March 11, 2020, the World Health Organization announced that COVID-2019 has become a global pandemic. In China, Reduning injection (REDI) and Xuanfeibaidu formula (XFF) is widely used in treating COVID-19.
View Article and Find Full Text PDFA novel compound, triculata A (), and seven known compounds were obtained from the (D. Don) J. F.
View Article and Find Full Text PDFA new method for the formation of 1,1-difluoroethyl copper species ("CuCF2 CH3 ") with 1,1-difluoroethylsilane (TMSCF2 CH3 ) has been developed. The "CuCF2 CH3 " species can be applied to the efficient 1,1-difluoroethylation of diaryliodonium salts under mild conditions, affording (1,1-difluoroethyl)arenes in good to excellent yields. This convenient procedure tolerates a wide range of functional groups and thus serves as a practical synthetic tool for the introduction of CF2 CH3 group(s) into complex molecules.
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