Axial gradient excitation accelerates volumetric imaging of two-photon microscopy

2022 ◽  
Author(s):  
Yufeng Gao ◽  
Xianyuan Xia ◽  
Lina Liu ◽  
Chen Ting Ai ◽  
Ting Wu ◽  
...  
Keyword(s):  
Volumetric Imaging ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Axial Gradient

scholarly journals Volumetric two-photon imaging in live cells and embryos via axially gradient excitation

2019 ◽  
Author(s):  
Yufeng Gao ◽  
Xianyuan Xia ◽  
Jia Yu ◽  
Tingai Chen ◽  
Zhili Xu ◽  
...  
Keyword(s):  
Live Cells ◽  
Deep Penetration ◽  
Layer By Layer ◽  
Photon Beams ◽  
Volumetric Imaging ◽  
Localization Accuracy ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Subcellular Resolution ◽  
Imaging Speed

AbstractTwo-photon microscopy(TPM) that features subcellular resolution, intrinsic optical sectioning ability, and deep penetration in sample is a powerful tool of bioimaging. However, the process of layer-by-layer scanning to form a 3D image inherently limits the volumetric imaging speed and significantly increases the phototoxicity. Here we develop a gradient TPM technique that enables rapid volumetric imaging by only acquiring two 2D images. By sequentially exciting the specimen with two axially elongated two-photon beams with complementary gradient intensities, the axial positions of fluorophores can be decoded from the intensity ratio of the paired images. We achieve an axial localization accuracy of 0.728 ± 0.657 μm, which is sufficient for rapid 3D subcellular imaging. We demonstrate the flexibility of the gradient TPM on a variety of sparsely labelled samples, including bead phantoms, mouse brain tissues, live macrophages and live nematode embryos. The results show that, compared with conventional TPM, the 3D imaging speed increases 6 folds while the photobleaching and photodamage are extremely reduced.

scholarly journals Fast Volumetric Imaging in Two-Photon Microscopy and Enhanced Background Rejection using an Acoustic Lens

2016 ◽  
Vol 110 (3) ◽  
pp. 162a
Author(s):  
Simonluca Piazza ◽  
Paolo Bianchini ◽  
Colin Sheppard ◽  
Alberto Diaspro ◽  
Martí Duocastella
Keyword(s):  
Volumetric Imaging ◽  
Two Photon Microscopy ◽  
Background Rejection ◽  
Two Photon ◽  
Acoustic Lens

In vivo imaging of liver injury and regeneration by functional two-photon microscopy

2016 ◽  
Vol 54 (12) ◽  
pp. 1343-1404
Author(s):  
A Ghallab ◽  
R Reif ◽  
R Hassan ◽  
AS Seddek ◽  
JG Hengstler
Keyword(s):  
Liver Injury ◽  
In Vivo Imaging ◽  
Two Photon Microscopy ◽  
Two Photon

scholarly journals Adaptive Optical Two-Photon Microscopy for Surface-Profiled Living Biological Specimens

ACS Omega ◽  
2020 ◽  
Author(s):  
Kazushi Yamaguchi ◽  
Kohei Otomo ◽  
Yuichi Kozawa ◽  
Motosuke Tsutsumi ◽  
Tomoko Inose ◽  
...  
Keyword(s):  
Two Photon Microscopy ◽  
Two Photon

scholarly journals Publisher Correction: Miniature two-photon microscopy for enlarged field-of-view, multi-plane and long-term brain imaging

2021 ◽  
Vol 18 (2) ◽  
pp. 220-220
Author(s):  
Weijian Zong ◽  
Runlong Wu ◽  
Shiyuan Chen ◽  
Junjie Wu ◽  
Hanbin Wang ◽  
...  
Keyword(s):  
Brain Imaging ◽  
Field Of View ◽  
Two Photon Microscopy ◽  
Two Photon

scholarly journals Publisher Correction: Ultrahigh-speed point scanning two-photon microscopy using high dynamic range silicon photomultipliers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Vincent D. Ching-Roa ◽  
Eben M. Olson ◽  
Sherrif F. Ibrahim ◽  
Richard Torres ◽  
Michael G. Giacomelli
Keyword(s):  
Dynamic Range ◽  
High Dynamic Range ◽  
Silicon Photomultipliers ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
High Dynamic

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

scholarly journals Two-photon microscopy with simultaneous standard and extended depth of field using a tunable acoustic gradient-index lens

2009 ◽  
Vol 34 (11) ◽  
pp. 1684 ◽  
Author(s):  
Nicolas Olivier ◽  
Alexandre Mermillod-Blondin ◽  
Craig B. Arnold ◽  
Emmanuel Beaurepaire
Keyword(s):  
Depth Of Field ◽  
Gradient Index ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Gradient Index Lens ◽  
Extended Depth Of Field

scholarly journals Evaluation of Nanoparticle Penetration in the Tumor Spheroid Using Two-Photon Microscopy

Biomedicines ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 10
Author(s):  
Feby Wijaya Pratiwi ◽  
Chien-Chung Peng ◽  
Si-Han Wu ◽  
Chiung Wen Kuo ◽  
Chung-Yuan Mou ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Solid Tumors ◽  
Physicochemical Parameters ◽  
Mesoporous Silica Nanoparticles ◽  
Model System ◽  
Tumor Spheroid ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Tumor Region ◽  
Penetration Behavior

Mesoporous silica nanoparticles (MSNs) have emerged as a prominent nanomedicine platform, especially for tumor-related nanocarrier systems. However, there is increasing concern about the ability of nanoparticles (NPs) to penetrate solid tumors, resulting in compromised antitumor efficacy. Because the physicochemical properties of NPs play a significant role in their penetration and accumulation in solid tumors, it is essential to systematically study their relationship in a model system. Here, we report a multihierarchical assessment of the accumulation and penetration of fluorescence-labeled MSNs with nine different physicochemical properties in tumor spheroids using two-photon microscopy. Our results indicated that individual physicochemical parameters separately could not define the MSNs’ ability to accumulate in a deeper tumor region; their features are entangled. We observed that the MSNs’ stability determined their success in reaching the hypoxia region. Moreover, the change in the MSNs’ penetration behavior postprotein crowning was associated with both the original properties of NPs and proteins on their surfaces.

Optimisation of fluorescent DNA labels for two-photon microscopy

2010 ◽  
Author(s):  
G. Metgé ◽  
C. Fiorini-Debuisschert ◽  
F. Charra ◽  
G. Bordeau ◽  
E. Faurel ◽  
...  
Keyword(s):  
Two Photon Microscopy ◽  
Two Photon
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