- Overview
- Specifications
- Applications
- Technical Diagrams
- Measurement Examples
- Accessories
- Resources
- Publications
The instrument for quantitative cell biology at single-molecule detection.
Alba is a laser scanning microscope that incorporates several measurement modalities for experimental quantitative biology and material sciences applications requiring the single molecule detection sensitivity.
Key Features of Alba v5 for FLIM/FFS:
- Single- and multi-photon excitation on two separate input ports
- Up to 4 acquisition channels
- Output port for 5th channel acquisition or CCD camera
- Separate, computer-controlled aperture, pinholes on each acquisition channel for high precision FFS measurements
- Fast scanning mirrors
- Polarization module
- Computer-control of filterwheels, shutters, pinholes aperture, lasers intensity, channels alignment
- Powered by VistaVision, a user-friendly software package for the acquisition of confocal images, FLIM/ FRET, RICS, and FFS (FCS, PCH, scanning FCS, N&B)
Excitation Modality
Separate input ports for one-photon excitation (laser diodes and supercontinuum laser) or multi-photon measurements (Ti:Sapphire laser, fiber laser) are available on the Alba-STED for FLIM/FFS.
Microscopes
Alba v5 for FLIM/FFS can be interfaced with most commercial epifluorescence and upright microscopes.
Detectors
Fast GaAs detectors, hybrid photomultiplier tubes, avalanche photodiodes.
Measurements for Alba v5 for FLIM/FFS
FFS Measurements |
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Single-point Module Measurements |
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Imaging Module Measurements (Single plan and z-stack) |
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FLIM images (digital frequency-domain) (single plane and z-stack) |
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FLIM images time-domain (single plane and z-stack) |
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Superresolution |
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Single Molecule Module |
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Specifications for Alba v5 for FLIM/FFS
Instrument Features |
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Acquisition and Analysis Software |
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Light Sources |
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Laser Launcher |
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Microscope |
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Objectives |
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Dichroic Filters |
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Polarizer |
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Stages |
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Sample Holders |
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Light Detectors |
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OS Requirements |
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Power Requirements |
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Dimensions |
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Weight |
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Measurement Examples from Alba v5 for FLIM/FFS

All the results are directly generated by VistaVision for FLIM-FRET analysis. The phasor plots compares the raw data of the donor-only cell and the mNeonGreen-TM cell (in the presence of the dark quencher) .It clearly shows (1) the quenching of the donor on the mNeonGreen-TM cell membrane; (2) the lifetime of mNeonGreen-alone or mNeonGreen-TM expressed inside the cell is shorter than on the cell membrane. Acquired by ISS Alba and FastFLIM, Ex. 488, Em. 509 – 552 nm; Analyzed by ISS 64-bit VistaVision software. Sample provided by Dr.Peng Zou, at CCME, Peking University.

Confocal lifetime imaging of GPCR-cpEGFP expressed in live HEK293T cells upon agonist and antagonist treatments. Despite of the substantial (nearly 5.5-fold) intensity increase and then decrease upon the agonist and antagonist treatments, no noticeable change in the lifetimes during the whole process was observed from the phasor plots comparing the raw data sets. Acquired by ISS Alba and FastFLIM, Ex. 470nm, Em. 509-552nm; Analyzed by ISS 64-bit VistaVision software. Samples provided by Dr. Yulong Li at CCME, Peking University.

Confocal NIR lifetime imaging of HRPE-i221e. Acquired by ISS Alba, Ex. 770 nm (3.5 µW @ specimen plane), Em. 814-870 nm. Analyzed by ISS 64-bit VistaVision software. Samples provided by Dr. Yun Yan at CCME, Peking University.
Resources
Configuration
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Videos
Click on a picture to view the video.
Technical Notes
Application Notes
Biochemistry
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Quantitative High-Resolution Imaging of Live Microbial Cells at High Hydrostatic Pressure
Bourges, A.C., Lazarev, A., Declerck, N., Rogers, K.L., Royer, C.A. Biophysical Journal 118, 2670-2679, June 2, 2020 |
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The N-Terminal Domain of ALS-Linked TDP-43 Assembles without Misfolding.
Tsoi, P.S., Choi, K.J., Leonard, P.G., Sizovs, A., Moosa, M.M., MacKenzie, K.R., Ferreon, J.C., Ferreon, A.C.M. Angew Chem Int Ed Engl. 2017 Oct 2;56(41):12590-12593. doi: 10.1002/anie.201706769. Epub 2017 Sep 5. |
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The Use of FLIM-FRET for the Detection of Mitochondria-associated Protein Interactions
Osterlund, E.J., Liu, Q., Andrews, D.W. Methods Mol Biol., 2015, 1264, 395-419. |
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Measuring Förster Resonance Energy Transfer Using Fluorescence Lifetime Imaging Microscopy
Day, R. Microscopy Today, 2015, 23(3), 44-51. |
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Cis and Trans Internucleosomal Interactions of H3 and H4 Tails in Tetranucleosomes
Nurse, N.P., Yuan, C. Biopolymers., 2015, 103(1), 33-40. |
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A Decoy Peptide That Disrupts TIRAP Recruitment to TLRs Is Protective in a Murine Model of Influenza.
Piao, W., Shirey, K.A., Ru, L.W., Lai, W., Szmacinski, H., Snyder, G.A., Sundberg, E.J., Lakowicz, J.R., Vogel, S.N., Toshchakov, V.Y. Cell Rep., 2015, 11(12), 1941-52. |
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Unexpected Complex Formation Between Coralyne and Cyclic Diadenosine Monophosphate Providing a Simple Fluorescent Turn-on Assay to Detect This Bacterial Second Messenger.
Zhou, J., Sayre, D.A., Zheng, Y., Szmacinski, H., Sintim, H.O. Anal Chem., 2014, 86(5), 2412-20. |
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Binding of Fusion Protein FLSC IgG1 to CCR5 Is Enhanced by CCR5 Antagonist Maraviroc.
Latinovic, O., Schneider, K., Szmacinski, H., Lakowicz, J.R., Heredia, A., Redfield, R.R. Antiviral Res., 2014, 112, 80-90. |
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Application of Phasor Plot and Autofluorescence Correction for Study of Heterogeneous Cell Population.
Szmacinski, H., Toshchakov, V., Lakowicz, J.R. J Biomed Opt., 2014, 19(4), 046017. |
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DNA Methylation Effects on Tetra-nucleosome Compaction and Aggregation
Jimenez-Useche, I., Nurse, N.P., Tian, Y., Kansara, B.S., Shim, D., Yuan, C. Biophys J., 2014, 107(7), 1629-36. |
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Unmethylated and Methylated CpG Dinucleotides Distinctively Regulate the Physical Properties of DNA
Jimenez-Useche, I., Shim, D., Yu, J., Yuan, C. Biopolymers., 2014, 101(5), 517-24. |
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mMAPS: A Flow-Proteometric Technique to Analyze Protein-Protein Interactions in Individual Signaling Complexes
Chou, C.-K., Lee, H.-H., Tsou, P.-H., Chen, C.-T., Hsu, J.-M., Yamaguchi, H., Wang, Y.-N., Lee, H.-J., Hsu, J. L., Lee, J.-F., Kameoka, J., Hung, M.-C. Sci. Signal., 2014, 7(315), rs1 . |
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Unraveling Transcription Factor Interactions with Heterochromatin Protein 1 Using Fluorescence Lifetime imaging Microscopy and Fluorescence Correlation Spectroscopy
Siegel, A.P., Hays, N.M., Day, R.N. J. Biomed. Opt., 2013, 18(2). |
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Chromophore Maturation and Fluorescence Fluctuation Spectroscopy of Fluorescent Proteins in a Cell-free Expression System.
Macdonald, P.J.1., Chen, Y., Mueller, J.D. Anal Biochem., 2012, 421(1), 291-8. |
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Monitoring Biosensor Activity in Living Cells with Fluorescence Lifetime Imaging Microscopy
Hum, J.M., Siegel, A.P., Pavalko, F.M., Day, R.N. Int. J. Mol. Sci., 2012, 13, 14385-14400. |
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HIV-1 Nef Binds a Subpopulation of MHC-I throughout Its Trafficking Itinerary and Down-regulates MHC-I by Perturbing Both Antegrograde and Retrograde Trafficking
Yi, L., Rosales, T., Rose, J.J., Chaudhury, B., Knutson, J.R., Venkatesan, S. J Biol Chem, 2010, 285(40), 30884-30905. |
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Familial Hypertrophic Cardiomyopathy Can Be Characterized by a Specific Pattern of Orientation Fluctuations of Actin Molecules
Borejdo, J., Szczesna-Cordary, D., Muthu, P., Calander, N. Biochemistry, 2010, 49, 5269-5277. |
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Estrogen Receptor Ineractions and Dynamics Monitored in Live Cells by Fluorescence Cross-Correlation Spectroscopy
Savatier, J., Jalaguier, S., Ferguson, M.L., Cavaille`s, V., Royer, C.A. Biochemistry, 2010, 49, 772-781. |
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Monomer-Dimer Equilibrium in Glutathione Transferases: A Critical Re-Examination
Fabrini, R., De Luca, A., Stella, L., Mei, G., Orioni, B., Ciccone, S., Federici, G., Lo Bello, M., Ricci, G. Biochemistry, 2009, 48, 10473-10482. |
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Fluorescence Correlation Spectroscopy of Phophatidylinositol-specific Phospholipase C Monitors the Interplay of Substrate and Activator Lipid Binding
Pu, M., Roberts, M.F., Gershenson, A. Biochemistry, 2009, 48(29), 6835-6845. |
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Correlation of Vesicle Binding and Phospholipid Dynamics with Phospholipase C Activity: Insights Into Phosphatidycholine Activation and Surface Dilution Inhibition
Pu, M., Fang, X., Redfield, A.G., Gershenson, A., Roberts, M.F. J. of Biol. Chem., 2009, 284(24), 16099-16107. |
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A Fluorescent Mutant of the NM Domain of the Yeast Prion Sup35 Provides insight into Fibril Formation and Stability
Palhano, F.L., Rocha, C.B., Bernadino, A., Weissmuller, G., Masuda, C.A., Montero-Lomeli, M., Marco Gomes, A., Chien, P., Fernandes, P.M.B., Foguel, D. Biochemistry, 2009, 48, 6811-6823. |
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Characterization of the Control Catabolite Protein of Gluconeogenic Genes Repressor by Fluorescence Cross-correlation Spectroscopy and Other Biophysical Approaches.
Zorrilla, S., Ortega, A., Chaix, D., Alfonso, C., Rivas, G., Aymerich, S., Lillo, M.P., Declerck, N., Royer, C.A. Biophys J., 2008, 95(9), 4403-15. |
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Applications of Dual-Color Fluorescence Cross-Correlation Spectroscopy in Antibody Binding Studies
Ruan, Q., Tetin, S.Y. Anal. Biochem., 2008. |
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Endothelial Adhesion Receptors Are Recruited to Adherent Leukocytes by Inclusion in Preformed Tetraspanin Nanoplatforms
Barreiro, O., Zamai, M., Yáñez-Mó , M., Tejera, E., López-Romero, P., Monk, P.N., Gratton, E., Caiolfa, V.R., S´nchez-Madrid, F. J. Cell Biol., 2008, 183(3), 527-542. |
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Determining the Stoichiometry of Protein Heterocomplexes in Living Cells With Fluorescence Fluctuation Spectroscopy.
Chen, Y.1., Müller, J.D. Proc Natl Acad Sci U S A., 2007, 104(9), 3147-52. |
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Fructose-1,6-bisphosphate Acts Both as an Inducer and as a Structural Cofactor of the Central Glycolytic Genes Repressor (CggR)
Zorrilla, S., Chaix, D., Ortega, A., Alfonso, C., Doan, T., Margeat, E., Rivas, G., Aymerich, S., Declerck, N., Royer, C.A. Biochemistry, 2007, 46(51), 14996-15008. |
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Escherichia coli Ribosomal Protein L20 Binds as a Single Monomer to its Own mRNA Bearing Two Potential Binding Sites
Allemand, F., Haentjens, J., Chiaruttini, C., Royer, C., Springer, M. Nucleic Acids Research, 2007, 35(9), 3016-3031. |
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Monomer Dimer Dynamics and Distribution of GPI-Anchored uPAR are Determined by Cell Surface Protein Assemblies
Caiolfa, V.R., Zamai1, M., Malengo, G., Andolfo, A., Madsen, C.D., Sutin, J., Digman, M.A., Gratton, E., Blasi1, F., Sidenius, N. J. Cell Biol., 2007, 179, 1067-1082. |
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Interactions of Two Monoclonal Antibodies with BNP: High Resolution Epitope Mapping Using Fluorescence Correlation Spectroscopy
Tetin, S.Y., Ruan, Q., Saldana, S.C., Pope, M.R., Chen, Y., Wu, H., Pinkus, M.S., Jiang, J., Richardson, P.L. Biochemistry, 2006, 45(47), 14155-65. |
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Effects of Protein-Ligand Associations on the Subunit Interactions of Phosphofructokinase from B. stearothermophilus
Quinlan, R.J., Reinhart, G.D. Biochemistry, 2006, 45, 11333-11341. |
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Quantitative Detection of the Ligand-dependent Interaction Between the Androgen Receptor and the Co-activator, Tif2, in Live Cells Using Two Color, Two Photon Fluorescence Cross-correlation Spectroscopy
Rosales, T., Georget, V., Malide, D., Smirnov, A., Xu, J., Combs C., Knutson, J.R., Nicolas, J.-C., Royer, C.A. Eur. Biophys. J., 2006. |
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The Nuclear Receptor Coactivator PGC-1α Exhibits Modes of Interaction with the Estrogen Receptor Distinct From those of SRC-1
Bourdoncle, A., Labesse, G., Margueron, R., Castet, A., Cavaillès s, V., Royer, C.A. J. Mol. Biol., 2005, 347, 921-934. |
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Phosphoinositide Specificity of and Mechanism of Lipid Domain Formation by Annexin A2-p11 Heterotetramer
Gokhale, N.A., Abraham, A., Digman, M.A., Gratton, E., Cho, W. J. Biol. Chem., 2005, 280(52), 42831-42840. |
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Vesicle Encapsulation Studies Reveal that Single Molecule Ribozyme Heterogeneities Are Intrinsic
Okumus, B., Wilson, T.J., Lilley, D.M.J., Ha, T. Biophys. J., 2004, 87, 2798-2806. |
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Pleckstrin Homology Domain Diffusion in Dictyostelium Cytoplasm Studied Using Fluorescence Correlation Spectroscopy
Ruchira, Hink, M.A., Bosgraaf, L., Van Haastert, P.J.M., Visser, A.J.W.G. The Journal of Biological Chemistry, 2004, 279(11), 10013-10019. |
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Polarized Fluorescence Correlation Spectroscopy of DNA-DAPI Complexes
Barcellona, M.L., Gammon, S., Hazlett, T., Digman, M.A., Gratton, E. Microscopy Research and Techniques, 2004, 65, 205-217. |
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Probing Protein Oligomerization in Living Cells With Fluorescence Fluctuation Spectroscopy.
Chen, Y.1., Wei, L.N., Müler, J.D. Proc Natl Acad Sci U S A., 2003, 100(26), 15492-7. |
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Segregation of Saturated Chain Lipids in Pulmonary Surfactant Films and Bilayers
Nag, K., Pao, J.-S., Harbottle, R.R., Possmayer, F., Petersen, N.O., Bagatolli, L.A. Biophys. J., 2002, 82, 2041-2051. |
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Molecular Heterogeneity of O-Acetylserine Sulfhydrylase by Two-Photon Excited Fluorescence Fluctuation Spectroscopy
Chirico, G., Bettati, S., Mozzarelli, A., Chen, Y., Müller, J.D., Gratton, E. Biophys. J., 2001, 80, 1973-1985. |
Diagnostics & Sensing
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Fluorescence Lifetime Imaging of Physiological Free Cu(II) Levels in Live Cells With a Cu(II)-selective Carbonic Anhydrase-based Biosensor.
McCranor, B.J., Szmacinski, H., Zeng, H.H., Stoddard, A.K., Hurst, T., Fierke, C.A., Lakowicz, J.R., Thompson, R.B. Metallomics., 2014, 6(5), 1034-42. |
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Determining Antibody Stoichiometry Using Time-Integrated Fluorescence Cumulant Analysis
Skinner, J.P., Wu, B., Mueller, J.D., Tetin, S.Y. J. Phys. Chem. B, 2011, 115, 1131-1138. |
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Application of Fluorescence Correlation Spectroscopy to Hapten-Antibody Binding
Hazlett, T.L., Ruan, Q., Tetin, S.Y. Methods in Molecular Biology, 2005, 305, 415-438. |
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Antibodies in Diagnostic Applications
Tetin, S.Y., Stroupe, S.D. Current Pharmaceutical Biotechnology, 2004, 5, 9-16. |
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Fluorescence Correlation Spectroscopy Assay for Gliadin in Food
Varriale, A., Rossi, M., Staiano, M., Terpetschnig, E., Barbieri, B., Rossi, M., D'Auria, S. Anal Chem. 2007, 79(12), 4687-4689. |
Nanomaterials & Surface Physics
N&B (Number and Brightness)
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The Stoichiometry of Scaffold Complexes in Living Neurons - DLC2 Functions as a Dimerization Engine for GKAP.
Moutin, E., Compan, V., Raynaud, F., Clerté, C., Bouquier, N., Labesse, G., Ferguson, M.L., Fagni, L., Royer, C.A., Perroy, J. J Cell Sci., 2014, 127(Pt 16), 3451-62. |
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Reconciling Molecular Regulatory Mechanisms with Noise Patterns of Bacterial Metabolic Promoters in Induced and Repressed States
Ferguson, M.L., Le Coq, D., Jules, M., Aymerich, S., Ovidiu., R., Declerck, N., Royer, C.A. PNAS, 2012, 109(1), 155-160. |
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Absolute Quantification of Gene Expression in Individual Bacterial Cells Using Two-Photon Fluctuation Microscopy
Ferguson, M.L., Le Coq, D., Jules, M., Aymerich, S., Declerck, N., Royer, C.A. Anal Biochem., 2011, 419, 250-259. |
Particle Tracking
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Efficient Parallel Levenberg-Marquardt Model Fitting Towards Real-Time Automated Parametric Imaging Microscopy
Zhu, X., Zhang, D. PLoS One., 2013, 8(10), e76665. |
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Nanometer-Scale Optical Imaging of Collagen Fibers Using Gold Nanoparticles
Chen, B., Estrada, L.C., Hellriegel, C., Gratton, E. Biomedical Optics Express, 2011(2), 3, 511-519. |
Photon Counting Histogram
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Characterization of Brightness and Stoichiometry of Bright Particles by Flow-fluorescence Fluctuation Spectroscopy.
Johnson, J.1., Chen, Y., Mueller, J.D. Biophys J., 2010, 99(9), 3084-92. |
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Fluorescence Correlation Spectroscopy and Photon Counting Histogram on Membrane Proteins: Functional Dynamics of the Glycosylphosphatidylinositol-Anchored Urokinase Plasminogen Activator Receptor
Malengo, G., Andolfo, A., Sidenius, N., Gratton, E., Zamai, M., Caiolfa, V.R. J. Biomed. Opt., 2008, 13(3), 031215. |
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Unraveling Protein-Protein Interactions in Living Cells with Fluorescence Fluctuation Brightness Analysis
Chen, Y., Wei, L.-N., Müller, J.D. Biophys. J., 2005, 88, 4366-4377. |
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Dual-Color Photon-Counting Histogram
Chen, Y., Tekmen, M., Hillesheim, L., Skinner, J., Wu, B., Müller, J.D. Biophys. J., 2005, 88, 2177-2192. |
Plasmonics
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Fluorescence Spectroscopy With Metal-Dielectric Waveguides.
Badugu, R., Szmacinski, H., Ray, K., Descrovi, E., Ricciardi, S., Zhang, D., Chen, J., Huo, Y., Lakowicz, J.R. J Phys Chem C Nanomater Interfaces., 2015, 119(28), 16245-16255. |
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Imaging of Protein Secretion from a Single Cell Using Plasmonic Substrates
Szmacinski, H., Toshchakov, V., Piao, W., Lakowicz, J.R. BioNanoSci., 2013, 3(1), 30-36. |
General Theory
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Confocal Fluctuation Spectroscopy and Imaging
Földes-Papp, Z., Liao, S.-C.J., You, T., Terpetschnig, E., Barbieri, B. Current Pharmaceutical Biotechnology, 2010, 11, 639-653. |
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Fluorescence Fluctuation Spectroscopy: Ushering in a New Age of Enlightenment for Cellular Dynamics
Jameson, D.M., Ross, J.A., Albanesi, J.P. Biophys. Rev., 2009. |
Single Molecule Studies and Theory
Super-resolution, Nanoimaging
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Capturing Directed Molecular Motion in the Nuclear Pore Complex of Live Cells
Cardarelli, F., Lanzano, L., Gratton, E. PNAS, 2012, 109(25), 9863-9868. |
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Nanometer-scale Imaging by the Modulation Tracking Method
Lanzano, L., Digman, M.A., Fwu, P., Giral, H., Levi, M., Gratton, E. J. Biophotonics, 2011, 4(6), 415-424. |
Options and Accessories available for Alba v5 for FLIM/FFS
STED Module
Stimulated Emission Depletion (STED) is a powerful microscopy technique that allows for the observation of fluorescence structure with spatial resolution below the diffraction limit. The Alba-STED uses the pulsed excitation and pulsed depletion approach (pSTED) in combination with the digital frequency domain fluorescence lifetime imaging (FastFLIM) to record the time-resolved photons which allows for an increase in the image resolution and the separation of two labels with the same excitation wavelength.
Non Descanned Detection (NDD) Port
Detection through the Non Descanned Detection Port (NDD) is used in conjunction with multiphoton excitation; the fluorescence photons generated in the excitation spot of the laser are scattered back and collected right after the objective (without passing through the optics in the scanning path).
The Figure displays the NDD port on the Nikon Model Ti microscope coupled to the Alba. A raiser is introduced on the Nikon microscope above the epifluorescence port for connecting the NDD port and adding the filters-cartridge where the dichroic filters for the NDD detection are inserted. The detectors are mounted on an orthogonal mount complete of dichroic and filter holders. The NDD port uses either GaAs PMTs or hybrid detectors. The output of the detectors is diverted either to the data acquisition unit.
The Figure displays the NDD port on the Nikon Model Ti microscope coupled to the Alba. A raiser is introduced on the Nikon microscope above the epifluorescence port for connecting the NDD port and adding the filters-cartridge where the dichroic filters for the NDD detection are inserted. The detectors are mounted on an orthogonal mount complete of dichroic and filter holders. The NDD port uses either GaAs PMTs or hybrid detectors. The output of the detectors is diverted either to the data acquisition unit.
Laser Scanning Transmitted Detection Module with a Photon Counting PMT
T-PMT is a transmitted detection module with a photon counting PMT that works with inverted microscopes.
The module is installed beside the microscope transmission illumination lamp and features a manual slider for selecting between the PMT and the lamp illumination.
The module is installed beside the microscope transmission illumination lamp and features a manual slider for selecting between the PMT and the lamp illumination.
Microscope Stages
XYZ-stepper motor controlled stage for Microwell plates (8-, 96- and 384-wellplate)
The XYZ stage provides high resolution, highly repeatable, and fast controls for the X, Y, and Z position of the microscope stage; it utilizes crossed-roller slides, a high-precision lead screw, and zero-backlash miniature geared DC servomotors for smooth and accurate motion. Controlled through the USB port, it is the ideal stage when measuring samples in a microwell plate.VistaVision includes protocols for the automatic measurement at single points (FFS, lifetime, polarization); the user can select the sequential measurements on all the wells; alternatively, a set of wells can be selected for the measurements.
XYZ Piezo-controlled Stage
The XYZ PZT is an actuated linear nanopositioning stage of exceptional resolution and stability. Manufactured by Mad City Labs, it is packaged for ISS to be utilized in the Alba under the control of VistaVision.The 66 x 66 mm aperture in the stage center is ideal for applications involving transmitted beams, multiple probes or inverted optics. With its large distance of travel and high stability, the PZT is ideal for the most challenging microscopy and positioning applications. The PZT comes complete with position sensitive detectors for closed loop operation.
The stage is manufactured from a high performance Al alloy. actuators are preloaded within the PZT and supply the driving force for stage movement. The flexure hinges, which form the guidance mechanism, are cut into the stage using electric discharge machining (EDM). EDM is also used to form integrated amplifiers that increase the range of motion of the PZT actuators for the X, Y and Z axis. The PZT actuators are oriented perpendicular to the stage motion direction and within these amplifiers.