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Biological systems consist of a variety of distinct cell types that form functional networks. Super-resolution imaging of individual cells is required for better understanding of these complex systems. Direct visualization of 3D subcellular and nano-scale structures in cells is helpful for the interpretation of biological interactions and system-level responses. Here we introduce a modified magnified analysis of proteome (MAP) method for cell super-resolution imaging (Cell-MAP) which preserves cell fluorescence. Cell-MAP expands cells more than four-fold while preserving their overall architecture and three-dimensional proteome organization after hydrogel embedding. In addition, Optimized-Cell-MAP completely preserves fluorescence and successfully allows for the observation of tagged small molecular probes containing peptides and microRNAs. Optimized-Cell-MAP further successfully applies to the study of structural characteristics and the identification of small molecules and organelles in mammalian cells. These results may give rise to many other applications related to the structural and molecular analysis of smaller assembled biological systems.
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http://dx.doi.org/10.1038/s41598-020-61156-2 | DOI Listing |
Hear Res
August 2025
Dyson School of Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom. Electronic address:
Binaural hearing underpins effective communication in complex acoustic environments by increasing listeners' abilities to segregate concurrent sound sources. In certain conditions, interaural magnification of binaural cues has been shown to improve speech intelligibility in competing target masker scenarios, yet existing methods primarily comprise hearing aid algorithms, which, due to processing constraints, cause unwanted artefacts. Moreover, the perceptual effects of applying interaural magnification directly to a person's own head-related transfer function (HRTF) remain unclear.
View Article and Find Full Text PDFGlob Chang Biol
August 2025
Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, California, USA.
Despite widespread concern over increases in wildfire severity, the mechanisms underlying this trend remain unclear, hampering our ability to mitigate the severity of future fires. There is substantial uncertainty regarding the relative roles of extreme weather conditions, which are exacerbated by climate change, and forest management, in particular differences between private industrial timber companies and public land agencies. To investigate the effects of extreme weather and forest management on fire severity, we used light detection and ranging (LiDAR) data to characterize pre-fire forest structure across five large wildfires which burned 460,000 ha in the northern Sierra Nevada, California, USA.
View Article and Find Full Text PDFWe here propose a mass sensing mechanism based on nonlinear optomechanics. Driven by a laser field with a two-tone pump satisfying a specific frequency condition, a cavity optomechanical system can enter a special dynamical pattern correlating the mechanical oscillation and the sidebands of the oscillatory cavity field. Then, the associated mechanical oscillation frequency can be completely locked to the original mechanical frequency determined by the system fabrication.
View Article and Find Full Text PDFAnalyst
July 2025
Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
Owing to their high affinity and specificity for antigen target molecules, therapeutic monoclonal antibodies (mAbs) have been increasingly used for the treatment of different diseases. The sensitive and accurate detection of mAbs is crucial for the evaluation of their efficacy and safety. With a new design of a thiophosphate-modified and self-folding hairpin primer, herein, we described the establishment of an aptamer-based, highly sensitive and simple fluorescent trastuzumab mAb assay method target-induced recycling and low-temperature LAMP activation of CRISPR/Cas12a signal amplifications.
View Article and Find Full Text PDFFront Pharmacol
May 2025
Department of Pharmacy, Panzhihua Central Hospital, Panzhihua, Sichuan, China.
Objective: To (i) quantify the prevalence of polypharmacy and clinically significant DDIs, (ii) examine their independent and combined associations with ADRs, and (iii) explore whether depression and cognition modify these relationships among older Chinese adults with cancer among older Chinese adults diagnosed with cancer. A total of 408 participants aged ≥60 years completed both the 2011 baseline and 2013 follow-up surveys, forming the analytic cohort.
Methods: This analysis used data from the China Health and Retirement Longitudinal Study (CHARLS; 2011-2013).