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Lsm 510 multiphoton microscope

Manufactured by Zeiss

The LSM 510 multiphoton microscope is a high-performance imaging system designed for advanced biological research. It utilizes multiphoton excitation technology to enable deep tissue imaging with reduced phototoxicity and photobleaching. The microscope provides high-resolution, three-dimensional visualization of live samples.

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5 protocols using lsm 510 multiphoton microscope

1

Brightfield, Phase Contrast, and Confocal Immunofluorescence Imaging Protocols

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Brightfield images were obtained with oblique illumination and a 10X PlanFluor_DL 0.30/15.20mm Ph1 objective using a Keyence BZ-X810 microscope and BZ-X Analyzer software. 25 fields were captured from biological triplicates for each treatment, with one representative image per sample presented in figures. Phase contrast images were captured at 10X magnification using a Leica DMI6000 microscope and MetaMorph software (Molecular Devices). Confocal immunofluorescence analysis was conducted as previously described16 (link), 19 (link) using 1 μg/mL Diaminophenylindole (DAPI) (Sigma-Aldrich, cat. # D9542) to stain nuclei and the Alexafluor-conjugated primary antibodies and dilutions indicated in Supplementary Table 1. Confocal microscopy mages were captured using AIM software (Leica) with a Zeiss LSM 510 multiphoton microscope and 63X oil immersion objective.
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2

Assessing Neuronal Calcium Dynamics with Amyloid-beta Oligomers

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At 12–14 days in vitro (DIV) or 21 DIV, neuronal cultures were incubated with 6 µM indo-1/AM dye (Invitrogen) and 2 µM sulforhodamine 101 (SR101; Life Technologies) for 45 min at 37 °C. Images were acquired using a 25× water immersion objective on an inverted Zeiss LSM 510 multiphoton microscope with a humidified environmental chamber that maintained temperature at 37 °C. Two-photon excitation was performed at 750 nm using a mode-locked Chameleon Ti:sapphire laser (Coherent, Inc) as the source. Ratiometric images were generated with the simultaneous acquisition using non-descanned detectors of two spectral channels: 390–465 nm and 480–522 nm. Multiple fields were acquired that included 300–400 cells per dish. After baseline calcium was obtained, the cultures were treated with antibody-immunodepleted AβOs or AβOs-alone by replacing half of the total volume of the media in the dish with oligomer-containing media for 45 min. The cultures were then re-imaged in the same areas in the dish.
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3

Retinal Cell Identification in Mice

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All animal procedures were conducted in accordance with NIH guidelines, as approved by the NINDS Animal Care and Use Committee. Retinas were isolated from eGFP-DRD4/Chat-Cre/TdTomato (RRID:MMRRC_000231-UNC) mice (postnatal days 14 70). All subsequent procedures and recordings were performed in Ames media or artificial cerebrospinal fluid equilibrated with 95% O2/5% CO2. Recordings were performed in ambient light levels to reduce rod-pathway activation. All experiments were performed at ~35 °C. Cells were identified by their GFP expression using a Zeiss LSM-510 multiphoton microscope.
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4

Far-Red Light Microscopy of Seedlings

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For fluorescence microscopy analyses, seedlings were grown on MS medium for 5 d and then released to far-red light for 10 h. At least 10 independent lines for each cross combination were examined using a Zeiss LSM 510 multiphoton microscope.
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5

Multiphoton Imaging of Fresh Liver Tissue

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Freshly removed liver tissue was placed in 35mm coverslip-bottom Petri dishes (MatTek corporation), kept moist with ice cold RPMI 1640 and imaged on an inverted LSM 510 multiphoton microscope (Carl Zeiss Microimaging). Images were acquired with a 40x 1.1 water immersion objective and fluorescence excitation provided by a Chameleon XR Ti:sapphire laser (Coherent) tuned to ~870-900nm. For 3D analysis, 20–40μm Z stacks were acquired with a Z distance of 2–3μm. Images were rendered and analysed using Volocity software (Improvision).
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