Results 51 to 60 of about 207,530 (298)

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Rapid fluorescence lifetime imaging microscopy via few-photon imaging

APL Photonics
Conventional fluorescence lifetime imaging microscopy (FLIM) based on time-correlated single photon counting has great potential in various domains, notably in cellular biology, enabling comprehensive studies encompassing spatiotemporal dynamics and ...
Ming-Jie Sun, Yi-Cheng Zhang, Fang-Rui Lin, Shuai Wang, Li-Wei Liu, Jun-Le Qu   +5 more
doaj   +1 more source

Dead-time correction of fluorescence lifetime measurements and fluorescence lifetime imaging

Optics Express, 2016
We present a comprehensive theory of dead-time effects on Time-Correlated Single Photon Counting (TCSPC) as used for fluorescence lifetime measurements, and develop a correction algorithm to remove these artifacts. We apply this algorithm to fluorescence lifetime measurements as well as to Fluorescence Lifetime Imaging Microscopy (FLIM), where rapid ...
Isbaner, Sebastian, Karedla, Narain, Ruhlandt, Daja, Stein, Simon Christoph, Chizhik, Anna, Gregor, Ingo, Enderlein, Jörg   +6 more
openaire   +3 more sources

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Photophysics and Inverted Solvatochromism of 7,7,8,8-Tetracyanoquinodimethane (TCNQ) [PDF]

, 2019
We report the absorption, fluorescence, and Raman spectroscopy of 7,7,8,8- tetracyanoquinodimethane (TCNQ) in a variety of solvents. The fluorescence quantum yields (QYs) of linear alkane solutions are similar to one another, but QY is shown to acutely ...
IIMORI Toshifumi, ISHIKAWA Takumi, NAKANO Hideyuki, TAMAYA Honami, TORII Yuto   +4 more
core   +2 more sources

One size does not fit all: An in vitro evaluation of the effects of bezafibrate and medroxyprogesterone acetate on human SH‐SY5Y and U‐87 MG cancer cells

FEBS Open Bio, EarlyView.
Drugs previously repurposed to target blood cancers reduced neuroblastoma and glioblastoma cell growth and viability. However, their levels of anticancer activity were different and their clinical application may be problematic due to side effects at effective doses.
Abhishek Kharawatkar, Francesco Michelangeli, Farhat Latif Khanim, Christopher Martin Bunce, William Eustace Basil Johnson   +4 more
wiley   +1 more source

Fluorescence Lifetime Endoscopy with a Nanosecond Time-Gated CAPS Camera with IRF-Free Deep Learning Method

Sensors
Fluorescence imaging has been widely used in fields like (pre)clinical imaging and other domains. With advancements in imaging technology and new fluorescent labels, fluorescence lifetime imaging is gradually gaining recognition.
Pooria Iranian, Thomas Lapauw, Thomas Van den Dries, Sevada Sahakian, Joris Wuts, Valéry Ann Jacobs, Jef Vandemeulebroucke, Maarten Kuijk, Hans Ingelberts   +8 more
doaj   +1 more source

A turquoise fluorescence lifetime-based biosensor for quantitative imaging of intracellular calcium

Nature Communications, 2021
Currently, genetically encoded calcium indicators are not suitable for direct quantification. Here the authors engineer a fluorescence lifetime imaging calcium biosensor, Turquoise Calcium Fluorescence LIfeTime Sensor (Tq-Ca-FLITS), and measure ...
Franka H. van der Linden, Eike K. Mahlandt, Janine J. G. Arts, Joep Beumer, Jens Puschhof, Saskia M. A. de Man, Anna O. Chertkova, Bas Ponsioen, Hans Clevers, Jaap D. van Buul, Marten Postma, Theodorus W. J. Gadella, Joachim Goedhart   +12 more
doaj   +1 more source

ALDOA Promotes Glycolysis and NLRP3/GSDMD Pyroptosis to Accelerate ALS Progression

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is characterized by progressive motor neuron degeneration. Glycolytic dysregulation is implicated in disease progression, yet the underlying mechanisms remain unclear. This study investigates how Aldolase A (ALDOA) drives ALS progression through glycolysis‐mediated motor neuron pyroptosis.
Kaixin Yan, Yan Jiang, Yuxuan Yong, Tianshuo Zhang, Niannian Zhang, Qianqian Zeng, Xue Gong, Li Meng, Fangfang Bi, Yongmin Liu   +9 more
wiley   +1 more source

Spontaneous emission enhancement of a single molecule by a double-sphere nanoantenna across an interface

, 2012
We report on two orders of magnitude reduction in the fluorescence lifetime when a single molecule placed in a thin film is surrounded by two gold nanospheres across the film interface.
A. Renn, Agio, Anger, Bharadwaj, Buchler, Chen, Drexhage, Eghlidi, Farahani, Fischer, Geddes, Guzatov, H. Eghlidi, Harms, K-G. Lee, Kalkbrenner, Kalkbrenner, Kalkbrenner, Kinkhabwala, Kühn, Lukosz, Mojarad, Pfab, Press, Rogobete, Ruppin, S. Götzinger, Schietinger, Tan, V. Sandoghdar, X-W. Chen   +30 more
core   +1 more source