The power to analyze in vivo with more detail than ever before

STELLARIS 8 DIVE provides you with flexible multicolor imaging beyond 1 mm in depth. Thanks to 4Tune, a spectrally tunable non-descanned detector, you can define up to four detection bands simultaneously or an unlimited number when imaged sequentially anywhere in the emission spectrum. It gives you the flexibility to adapt to the combination of fluorophores you need. With STELLARIS 8 DIVE, you can perform multiphoton experiments with more than a billion possible fluorophore combinations, empowering you to study complex processes, such as neuronal connectivity, organ structure, dynamic interactions, or spatial relationships of cells and proteins in much more detail.

Study metastasis in live specimens using four or more colors to distinguish relevant proteins, hippocampal activity in awake mice, or the structure of fixed thick intestine sections with STELLARIS 8 DIVE!

The conventional dichroics are never optimal to distinguish all fluorophores, but with the spectral detectors, this is now possible and much easier, since we can really optimize for each fluorophore the wavelengths you want to detect.

Prof. Dr. Jacco van Rheenen. Netherlands Cancer Institute, Amsterdam (the Netherlands).

Live mouse brain cortex with neurons (GFP, in green) and microglia (YFP, in yellow) genetically tagged, astrocytes labeled with Sulforhodamine (in blue), and the blood vessel stained by injection of Alexa680-Dextran into the tail vein (in red). Whole stack is ~ 250 x 250 x 250 µm. Sample courtesy of LMF at DZNE Bonn, Germany.

DIVE with ease – the 4Tune detector

The 4Tune non-descanned detection system can be equipped with 2 to 4 detectors and is freely configurable with hybrid detectors (Power HyD NDD), photomultipliers (PMTs), or a mix of both. The emission light is separated by a combination of variable dichroics and bandpass filters. Freely tune your detection over the whole visible spectrum (380 – 800 nm)!

The 4Tune user interface allows you to optimize the emission setting for multiple transgenic markers by simple drag and drop. Due to its clear and intuitive design, operating it is easy and requires minimal training.

With the STELLARIS 8 DIVE, you are equipped for every existing and newly developed transgenic marker and future proved for new developments!

Top: 4Tune non-descanned detection system: 1) Variable Dichroic (VD). 2) Variable Bandpass (VB). 3) Power HyD NDD or PMT. Bottom: The intuitive 4Tune user interface allows easy setting of the detection windows for all colors from 380 up to 800 nm.

Explore new dimensions in depth

With the STELLARIS 8 DIVE, you can tune for the deepest insight and finest detail. All excitation beams can be optimally adjusted independently for any objective using the new Vario Beam Expander (VBE).

The VBE allows for optimized colocalization and the right balance of resolution and depth in line with your research question.

Mouse brain cortex, Thy1-eYFP. 20% improved penetration depth using Best Depth setting. IRAPO 25x1.0 W motCorr. Sample courtesy of Kevin Keppler, Light Microscope Facility, DZNE Bonn (Germany).

Optimize for depth and resolution with the Vario Beam Expander

The Leica Vario Beam Expander VBE combines tunable beam diameter and tunable divergence. This offers you maximum depth, best resolution and full color correction.

Tunable beam diameter for best balance of resolution and depth

The STELLARIS 8 DIVE allows you to adapt to your sample requirements. Using the Vario Beam Expander, you can choose: Maximum resolution – which results from a fully illuminated back aperture of your objective lens – and maximized penetration depth – resulting from slightly underfilling the back aperture. Underfilling the back-aperture results in a larger focal volume and a reduced pathlength which leads to more efficient excitation.

Tunable beam divergence for full color correction

Our IR APO objectives do not suffer from chromatic aberations over the IR range. However, with STELLARIS 8 DIVE you are ready to use objective lens suitable for IR along with multiple IR laser lines: The Vario Beam Expander can be used to correct for chromatic shifts and enable meaningful multicolor experiments.

Tunable Vario Beam Expander (VBE)

Expand the potential of deep in vivo experiments with label-free imaging

Molecules such as collagen and elastin have relevant roles in diseases like cancer. Our 4-tune detector enables the use of second and third harmonic generation signals that allow you to study these important structures without staining.

The combination of DIVE with STELLARIS also enables the use of lifetime-based information intrinsic to fluorescence. This ability allows you to perform experiments like metabolic mapping of a specimen via lifetime imaging of NADH or FAD.

Confetti mouse small intestines: Collagen1 is shown in gray (label free SHG) and lineage traced stem cells are shown in cyan, green, yellow, and red. Stem cells play an important role in the spread of cancer within organisms. Sample courtesy of Jacco van Rheenen, Netherlands Cancer Institute, NL.

Navigate tissue easily without the need of additional staining

Navigating through tissue often requires orientation landmarks to know where areas of interest are located. The scaffolding property of collagen can help in navigating through tissue and find areas of interest without the need of a counterstain.

Most biological tissues contain collagen which is the main component of connective tissues. For example, intestines are surrounded by a layer of collagen. Collagen can be visualized in multiphoton microscopy easily by collecting emission signals at exactly ½ of the excitation wavelength. With the flexible detection windows in 4Tune, any wavelength can be used to collect this signal, so no additional label or effort is needed.

Once the microscopist reaches the collagen structure, she knows that her tissue of interest (here stem cells in intestines) is close.

Confetti mouse small intestines: From SHG, gray indicates collagen1 and cyan, green, yellow, and red lineage traced stem cells. Sample courtesy of Jacco van Rheenen, Netherlands Cancer Institute, NL.

Combining multiphoton imaging and lifetime information to study metabolic changes

Metabolic changes can be an important marker for the health of tissue.

STELLARIS 8 DIVE offers you all the benefits of TauSense, a set of imaging tools based on fluoresences lifetime. When the metabolic state of a cell changes, it can be visualized by changes in the fluorescence lifetime of molecules, such as NADH. NADH plays a main role in the metabolism of sugar and its fluorescence lifetime is dependent on the glucose concentration. The NADH fluorescence lifetime is altered by a conformational change that occurs due to the biochemical reaction causing the breakdown of glucose.

For full quantitative fluorescence lifetime analysis, STELLARIS 8 DIVE can be combined with FAst Lifetime COntrast (FALCON).

NADH autofluroescence of cultured HeLa cells before and after treatment with glucose. Left: qualitative result with TauContrast. Right: quantitative analysis using the phasor plot in FALCON.

Add additional dimensions to your multiphoton experiments

Autofluorescence is a natural fluorescence emission from tissues arising from endogenous fluorophores, such as small molecules like NADH or FAD, or tissue structures. It often creates a problem when imaging specimens. But what if you could use it to your advantage?

Thanks to the combination of DIVE and TauSense, you can now use lifetime-based separation to obtain valuable information from autofluorescence signals. This capability gives you an additional channel enabling you to get more information from your valuable specimens.

Kidney section cleared with RapidClear and imaged with multiphoton excitation. The first image is intensity, the second TauContrast (850 nm excitation), and the third from four spectral channels where red indicates blood vessels (AF488, 920 nm excitation), gray collagen (SHG), green nerve cells (SytoxOrange, 1040 nm excitation), and blue nuclei (AF633, 1100 nm excitation). Courtesy of SunJin Labs.

Gain productivity with STELLARIS’ unique software capabilities

Multiphoton systems are usually rigid to use and need to be adapted to each experiment and user. Add to this the stress of working with live animals or freshly explanted tissue and you quickly understand the advantage of having flexibility when doing multiphoton experiments. STELLARIS 8 DIVE provides you with an easy, hassle-free workflow from setup to final results thanks to the seamless integration of multiphoton capabilities into the STELLARIS software.

  • Seamless experimental setup with ImageCompass
  • Intuitive approach for finding an area of interest on your sample with LAS X Navigator
  • Boosting of both speed and resolution with Dynamic Signal Enhancement
Section of intestine, 3.5 mm in diameter, cleared with RapidClear and imaged with Navigator: B/W: SHG – collagen; Blue: Sytox Orange – nuclei; Green: Alexa 633 – nerve cells; and Red: Alexa 488 – blood vessels. Courtesy of SunJin Labs.

Easy and fast setup of multicolor multiphoton imaging with ImageCompass

STELLARIS 8 DIVE multiphoton hardware is fully integrated into the ImageCompass interface of STELLARIS, allowing you to easily define your experimental settings for a quick start.

MP excitation and emission can be automatically defined by the system using the extensive database of fluorophores. They can also be defined manually with only a few clicks. Sequential settings and a fast live, 3D viewer – multicolor multiphoton imaging was never as easy.

ImageCompass gives full control of the hardware of STELLARIS 8 DIVE and allows to easily define experimental settings. 

Explore relevant details instantly while always keeping an overview of your specimen

The LAS X Navigator is a powerful navigation tool that enables you to quickly switch from searching image by image to seeing a full overview of your sample. Thanks to the integration of DIVE and STELLARIS, your multiphoton experiments can become more efficient. Benefit from the ability to freely navigate through your large and complex samples, providing deep multicolor imaging with fast overviews, multi-position imaging, and tile scans.

A mosaic image of a kidney slice, 1 cm long and 0.5 mm thick, is easily acquired and gives a full picture of the kidney nerve cell and collagen system (here in combination with TauContrast).

Kidney section (SunJin Labs, cleared with RapidClear) imaged with LAS X Navigator and TauContrast. A whole slice of 10 x 7 mm and 500 µm thick. Shorter arrival times in blue represent collagen (SHG signal), while longer values in green represent nerve cells stained with Alexa 633.

Live mouse brain cortex: Thy1-eYFP cortical neurons in green, label free third harmonics signal of blood cells in b/w. Excitation: 1300 nm. Sample courtesy of LMF, DZNE, Bonn, Germany.

Dynamic Signal Enhancement:

Maintain resolution of fast processes in vivo

Processes in live specimens can be fast. Fluorescent Signals in animals models, however, tend to be weak.

The solution to account for both challenges is Dynamic Signal Enhancement. It allows averaging for better S/N and, as consequence, better resolution, while adapting to your sample’s dynamics.

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