Sanhua Fang, Li Liu, Dan Yang, Shuangshuang Liu, Junli Xuan, Guifeng Xiao, Qianbing Zhao
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Parameter optimization of NanoJ-SRRF for live-cell microtubule imaging.
Super-Resolution Radial Fluctuation (SRRF) enables live-cell super-resolution imaging, but requires careful parameter selection. Here, we quantify the impact of NanoJ-SRRF parameters on microtubule imaging using FWHM and SQUIRREL-based error mapping. Ring radius proved most critical, with values >1.0 degrading resolution and fidelity. Radiality magnification and axes in ring had minimal impact. Advanced parameters revealed pitfalls: "remove positivity constraint" degraded resolution by 43%, while gradient weighting catastrophically reduced fidelity (RSP = 0.204 ± 0.116). Temporal Radiality Average (TRA) outperformed Temporal Radiality Auto-Correlations (TRAC), milimizing artifacts. This study establishes the first evidence-based guidelines for live-cell tubulin imaging: ring radius ≤1.0, TRA mode prioritization, and avoidance of gradient weighting. Integrating FWHM and SQUIRREL offers a robust opitimization framework for cytoskeletal dynamics.
期刊介绍：
BioTechniques is a peer-reviewed, open-access journal dedicated to publishing original laboratory methods, related technical and software tools, and methods-oriented review articles that are of broad interest to professional life scientists, as well as to scientists from other disciplines (e.g., chemistry, physics, computer science, plant and agricultural science and climate science) interested in life science applications for their technologies.
Since 1983, BioTechniques has been a leading peer-reviewed journal for methods-related research. The journal considers:
Reports describing innovative new methods, platforms and software, substantive modifications to existing methods, or innovative applications of existing methods, techniques & tools to new models or scientific questions
Descriptions of technical tools that facilitate the design or performance of experiments or data analysis, such as software and simple laboratory devices
Surveys of technical approaches related to broad fields of research
Reviews discussing advancements in techniques and methods related to broad fields of research
Letters to the Editor and Expert Opinions highlighting interesting observations or cautionary tales concerning experimental design, methodology or analysis.
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