The opsonization of C. albicans by means of sera treated with chloroform and ethyl ether resulted in significantly decreased values of PMN leucocyte phagocytic activity. In contrast to ethyl ether treated sera (decrease of phagocytic activity about 45%), chloroform processed sera possessed increased antiphagocytic activity (decrease of phagocytic activity about 63%). Significant changes were observed in the candidacidal capacity to C. albicans (decrease about 50%) and in the capacity of NBT (INT) reduction measured spectrophotometrically (decrease about 66% in chloroform treated sera and about 42% in ethyl ether treated sera). (Fig. 1, Ref. 22.)
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Anal Chem
January 2025
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States.
A novel employment of single particle-inductively coupled plasma-mass spectrometry (SP-ICP-MS) was developed, where a microextraction (ME) probe is used to sample nanoparticles from a surface and analyze them in a single analytical step. The effects of several parameters on the performance of ME-SP-ICP-MS were investigated, including the flow rate, choice of carrier solution, particle size, and the design of the microextraction probe head itself. The optimized ME-SP-ICP-MS technique was used to compare the extraction efficiency (EE, defined as the ratio of particles measured to particles deposited on the surface) of the commercial probe head to a newly designed SP polyether ether ketone (PEEK) probe head.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
The University of Sydney, School of Chemistry, Buiding F11, Easyern Avenue, 2006, Sydney, AUSTRALIA.
Amphiphilic bottlebrush block copolymers (BBCs) with tadpole-like, coil-rod architecture can be used to self-assemble into functional polymer nanodiscs directly in water. The hydrophobic segments of the BBC were tuned via the ratio of ethoxy-ethyl glycidyl ether (EE) to tetrahydropyranyl glycidyl ether (TP) within the grafted polymer sidechains. In turn, this variation controlled the sizes, pH-responsiveness, and drug loading capacity of the self-assembled nanodiscs.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
January 2025
Woolcock Institute for Medical Research, University of Technology, Sydney, NSW, Australia.
Introduction: It is well acknowledged that lipids assume a critical role in oocyte maturation and early embryonic metabolism, this study aimed to evaluate the relationship between the lipid composition of plasma and follicular fluid (FF), and the consequences of embryonic development. This study compared the lipidomic profiles of paired plasma and FF samples obtained from sixty-five Chinese women who underwent assisted reproductive technology (ART) treatments.
Methods: Non-targeted lipidomics analysis.
Angew Chem Int Ed Engl
January 2025
Henan University, Colleg of Chemistry and Molecular Sciences, Jingmin, 475004, Kaifeng, CHINA.
Cycloparaphenylenes (CPPs) represent a significant challenge for the synthesis of mechanically interlocked architectures, because they lack heteroatoms, which precludes traditional active and passive template methods. To circumvent this problem and explore the fundamental and functional properties of CPP rotaxanes and catenanes, researches have resorted to unusual non-covalent and even to labor-intensive covalent template approaches. Herein, we report a ring-in-ring non-covalent template strategy that makes use of the surprisingly strong non-covalent inclusion of crown ethers into suitably sized CPPs.
View Article and Find Full Text PDFSci Rep
January 2025
Biomedical Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
Car accidents, infections caused by bacteria or viruses, metastatic lesions, tumors, and malignancies are the most frequent causes of chest wall damage, leading to the removal of the affected area. After excision, artificial bone or synthetic materials are used in chest wall reconstruction to restore the skeletal structure of the chest. Chest implants have traditionally been made from metallic materials like titanium alloys due to their biocompatibility and durability.
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