Simultaneous Two-Angle Axial Ratiometry for Fast Live and Long-Term Three-Dimensional Super-Resolution Fluorescence Imaging

2019 ◽  
Vol 10 (24) ◽  
pp. 7811-7816 ◽  
Author(s):  
Wenjie Liu ◽  
Cuifang Kuang ◽  
Yifan Yuan ◽  
Zhimin Zhang ◽  
Youhua Chen ◽  
...  
Nanophotonics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 2111-2128 ◽  
Author(s):  
Jialei Tang ◽  
Jinhan Ren ◽  
Kyu Young Han

AbstractFluorescence microscopy has long been a valuable tool for biological and medical imaging. Control of optical parameters such as the amplitude, phase, polarization, and propagation angle of light gives fluorescence imaging great capabilities ranging from super-resolution imaging to long-term real-time observation of living organisms. In this review, we discuss current fluorescence imaging techniques in terms of the use of tailored or structured light for the sample illumination and fluorescence detection, providing a clear overview of their working principles and capabilities.


PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e38098 ◽  
Author(s):  
Siddharth Nanguneri ◽  
Benjamin Flottmann ◽  
Heinz Horstmann ◽  
Mike Heilemann ◽  
Thomas Kuner

2014 ◽  
Vol 6 (10) ◽  
pp. 988-998 ◽  
Author(s):  
Francesco Pampaloni ◽  
Ulrich Berge ◽  
Anastasios Marmaras ◽  
Peter Horvath ◽  
Ruth Kroschewski ◽  
...  

This novel system for the long-term fluorescence imaging of live three-dimensional cultures provides minimal photodamage, control of temperature, CO2, pH, and media flow.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Siewert Hugelier ◽  
Wim Vandenberg ◽  
Tomáš Lukeš ◽  
Kristin S. Grußmayer ◽  
Paul H. C. Eilers ◽  
...  

AbstractSub-diffraction or super-resolution fluorescence imaging allows the visualization of the cellular morphology and interactions at the nanoscale. Statistical analysis methods such as super-resolution optical fluctuation imaging (SOFI) obtain an improved spatial resolution by analyzing fluorophore blinking but can be perturbed by the presence of non-stationary processes such as photodestruction or fluctuations in the illumination. In this work, we propose to use Whittaker smoothing to remove these smooth signal trends and retain only the information associated to independent blinking of the emitters, thus enhancing the SOFI signals. We find that our method works well to correct photodestruction, especially when it occurs quickly. The resulting images show a much higher contrast, strongly suppressed background and a more detailed visualization of cellular structures. Our method is parameter-free and computationally efficient, and can be readily applied on both two-dimensional and three-dimensional data.


2009 ◽  
Vol 15 (S2) ◽  
pp. 564-565 ◽  
Author(s):  
J Tang ◽  
A Vaziri ◽  
J Akerboom ◽  
L Looger ◽  
C Shank

Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sevim Yardimci ◽  
Daniel R. Burnham ◽  
Samantha Y. A. Terry ◽  
Hasan Yardimci

Author(s):  
C.L. Woodcock

Despite the potential of the technique, electron tomography has yet to be widely used by biologists. This is in part related to the rather daunting list of equipment and expertise that are required. Thanks to continuing advances in theory and instrumentation, tomography is now more feasible for the non-specialist. One barrier that has essentially disappeared is the expense of computational resources. In view of this progress, it is time to give more attention to practical issues that need to be considered when embarking on a tomographic project. The following recommendations and comments are derived from experience gained during two long-term collaborative projects.Tomographic reconstruction results in a three dimensional description of an individual EM specimen, most commonly a section, and is therefore applicable to problems in which ultrastructural details within the thickness of the specimen are obscured in single micrographs. Information that can be recovered using tomography includes the 3D shape of particles, and the arrangement and dispostion of overlapping fibrous and membranous structures.


2020 ◽  
Vol 36 (06) ◽  
pp. 696-702
Author(s):  
Nolan B. Seim ◽  
Enver Ozer ◽  
Sasha Valentin ◽  
Amit Agrawal ◽  
Mead VanPutten ◽  
...  

AbstractResection and reconstruction of midface involve complex ablative and reconstructive tools in head and oncology and maxillofacial prosthodontics. This region is extraordinarily important for long-term aesthetic and functional performance. From a reconstructive standpoint, this region has always been known to present challenges to a reconstructive surgeon due to the complex three-dimensional anatomy, the variable defects created, combination of the medical and dental functionalities, and the distance from reliable donor vessels for free tissue transfer. Another challenge one faces is the unique features of each individual resection defect as well as individual patient factors making each preoperative planning session and reconstruction unique. Understanding the long-term effects on speech, swallowing, and vision, one should routinely utilize a multidisciplinary approach to resection and reconstruction, including head and neck reconstructive surgeons, prosthodontists, speech language pathologists, oculoplastic surgeons, dentists, and/or craniofacial teams as indicated and with each practice pattern. With this in mind, we present our planning and reconstructive algorithm in midface reconstruction, including a dedicated focus on dental rehabilitation via custom presurgical planning.


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