ibidi : µ-Slide 15 Well 3D (formerly µ-Slide Angiogenesis)

ibidi - 81501, 81506

ibidi : µ-Slide 15 Well 3D (formerly µ-Slide Angiogenesis)



A chambered coverslip with 15 wells for 3D cell culture, tube formation assays, and immunofluorescence staining

  • Brilliant cell visualization without gel meniscus formation, and with all cells in one focal plane
  • Ideal for 3D cell culture with a broad range of gels (e.g., Matrigel®, collagen, and agarose)
  • Cost-effective experiments, requiring only 10 µl of gel per well
  • Surface Modification: ibiTreat: #1.5 polymer coverslip, tissue culture treated, sterilized
    Pcs./Box: 15 (individually packed)
  • Surface Modification: Uncoated: #1.5 polymer coverslip, hydrophobic, sterilized
    Pcs./Box: 15 (individually packed)



Outer dimensions (w x l)25.5 x 75.5 mm2
Number of wells15
Volume inner well10 µl
Diameter inner well4 mm
Depth inner well0.8 mm
Volume upper well50 µl
Diameter upper well5 mm
Growth area inner well0.125 cm2
Coating area using 10 µl0.23 cm2

Technical Features

  • Standard slide format
  • Closely fitting lid to reduce evaporation
  • 4 mm well within a 5 mm well
  • Geometry enables pipetting of a homogeneous 0.8 mm thick gel layer*
  • Provides homogeneous cell growth
  • Compatible with staining and fixation
  • Excellent optical properties for microscopy
  • Compatible with multi-channel pipettes
  • Made of biocompatible plastic material: no glue, no leaking
  • Suitable for use with various types of gels* (e.g., Matrigel®, collagen, and agarose)
  • Also available with a No. 1.5H glass bottom: µ-Slide 15 Well 3D Glass Bottom
  • Also available in a 96 well format: µ-Plate 96 Well 3D

*The gel matrix is not included with this product.

Every Cell in Focus:
The Principle of the µ-Slide 15 Well 3D

The μ-Slide 15 Well 3D has a specialized geometry for the easy, convenient, and reproducible conduction of tube formation assays. It is also ideal for sprouting assays, immunofluorescence staining, and general 3D cell culture.

After the gel has been pipetted into the inner well and given time to solidify, the cells can be seeded on top of it for tube formation analysis. Due to the “well-in-a-well” technology, the amount of gel needed is reduced to only 10 μl per well, which is 10% of the amount used in regular multiwell plates.

Further, no gel meniscus is formed. This ensures the formation of a uniformly thick gel matrix on which all cells are in one optical plane, creating reproducible cell culture conditions. The µ-Slide 15 Well 3D can be used with all common hydrogel matrices, such as Matrigel®, collagen gels, agarose gels, and hyaluronic acid gels.

With its 15 wells, the µ-Slide 15 Well 3D is designed for low throughput assays. For large scale applications, ibidi provides the μ-Plate 96 Well 3D.


The µ-Slide 15 Well 3D Can Be Used in a Wide Range of Applications

Tube Formation Assay or Angiogenesis Assay

For a tube formation assay (also called angiogenesis assay), endothelial cells are seeded on top of a 10 µl gel layer (basement membrane-like surface), where they form capillary-like structures. Typically, Matrigel® is used. The tube formation ability of the cells can be used to analyze the pro- or anti-angiogenic potential of various drugs.

Find more detailed information here:

For practical details, please watch the ibidi movie Performing an Angiogenesis Assay (MV 15). In our Application Notes, you will find detailed information on the setup, optimization, data analysis, and interpretation of tube formation assays:


Phase contrast image showing one well of the µ-Slide 15 Well 3D with HUVEC cells on Matrigel® after 12 hours of incubation during a tube formation assay.

Phase contrast (top) and fluorescence microscopy (bottom) of a single strand composed of HUVEC cells during a tube formation assay in the µ-Slide 15 Well 3D. The F-actin cytoskeleton is stained green and the cell nuclei are stained blue.

Sprouting Assay

The sprouting potential of a cell cluster can be conveniently analyzed using the µ-Slide 15 Well 3D. To carry out a sprouting assay, spheroids or pieces of tissue (e.g., from the aorta), are placed onto or directly in the gel matrix before imaging.


3D Cell Culture

In many cases, a 3D environment more closely resembles an in vivo situation than a 2D cell culture. The µ-Slide 15 Well 3D is an easy and cost-effective solution for the cultivation and microscopy of cells embedded in gel matrices. The gel layer is directly connected to the medium reservoir above, which allows for fast and easy medium exchange by diffusion.

Besides cultures with only one cell type, the invasion behavior of different cell types (e.g., cancer cells and fibroblasts) can be investigated in a co-culture experiment.

Alternatively, a sandwich culture can be created using the same or different 3D gel matrices (e.g., Matrigel or collagen).

Also, non-adherent cells, such as blood cells or bacteria, can be immobilized for enhanced microscopy access.

Immunofluorescence Staining

For analyzing the outcome of a tube formation or a 3D culture experiment, immunofluorescence staining can be performed in the µ-Slide 15 Well 3D. The cells can be fixated and stained directly on or in the gel, then imaged using high-resolution microscopy.

Migration assay with fibroblasts cultured in an ibidi μ-Slide Angiogenesis

Migration assay with fibroblasts cultured in an ibidi μ-Slide 15 Well 3D. The cell on the left divided and polymerized actin (green) to form a leading edge that suggests the direction of the migration. EdU indicates proliferating cells (red). Nuclei are stained with DAPI (blue). The image was acquired with a Zeiss LSM 880 confocal microscope equipped with Airyscan detector. Image by Ambra Cappelletto, Andrea Colliva, Cardiovascular Biology Group, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy.

Murine embryonic dorsal root ganglion, cultured in an ibidi µ-Slide 15 Well 3D, stained against beta III tubulin. Image obtained with IN Cell Analyzer 2000 equipped with IN Cell Investigator software (GE Healthcare, United Kingdom) at the i3S BioSciences Screening Unit. Image by Estrella Do Céu Neto, i3S – Instituto de Investigação e Inovação em Saúde / INEB-Instituto de Engenharia Biomédica, Universitx of Porto, Porto, Portugal.

Focusing Cells

When using less than 10 µl of gel to fill the inner well of the µ-Slide 15 Well 3D, small numbers of cells can be cultivated and focused on a soft gel surface.

Low Volume Microscopy Chamber

The µ-Slide 15 Well 3D can also be used as a low-volume microscopy chamber without any gel, which is useful for experiments where several wells with a low volume are required.