Does the MEMI imaging source need a matrix?

MEMI belongs to the matrix-independent class of sources, intended to break free from organic matrices; the specific mechanism and parameters are subject to the manufacturer's official materials.

What is the difference between MEMI and Neo-Source LDPI?

Both pursue matrix-free/ambient; LDPI uses laser desorption plus photoionization, 2–3 μm, low background above m/z≥70, reaching the single-cell scale. MEMI specific metrics are subject to official parameters.

How to compare during selection?

Compare resolution magnitude, low-mass region background, instrument compatibility and standard-format export, and validate with your own samples.

Which instruments is the Neo-Source solution compatible with?

LDPI/DPI are compatible model-by-model with mainstream mass spectrometers such as Agilent, SCIEX and Thermo; please refer to the official compatibility list for specifics.

Brand Compatibility · Neo-Source

MEMI imaging source (matrix-independent imaging source)

MEMI is a representative product of ambient, matrix-independent mass spectrometry imaging sources, intended to break free from the dependence of traditional MALDI on organic matrices, directly desorbing and ionizing surface molecules of samples under ambient conditions, suitable for tissue-scale metabolism and lipid distribution imaging. Its specific models and parameters are subject to the manufacturer's official materials.

Table of Contents
1. Technical features 2. Differences from Neo-Source LDPI/DPI 3. Compatibility and selection 4. Procurement suggestions

MEMI imaging source (matrix-independent imaging source) — schematic diagram

1. Technical features

MEMI class sources sell on matrix independence, removing the matrix step under ambient pressure through a specific desorption/ionization mechanism, improving the small-molecule low-mass region background and simplifying sample preparation. The specific mechanism and resolution vary by model and should be subject to the manufacturer's official release.

As an ambient imaging source, its advantage lies in simplified pretreatment and near in-situ sample analysis; like DESI, LDPI and DPI it belongs to the ambient route, but differs in whether a matrix is needed, resolution and molecular coverage.

2. Differences from Neo-Source LDPI/DPI

Neo-Source LDPI achieves ambient matrix-free through laser desorption plus photoionization, with low background above m/z≥70 and 2–3 μm resolution (among the leading in the industry), reaching the single-cell/subcellular scale; DPI uses electrospray plus photoionization, with no polarity bias and sensitivity 1–4 orders of magnitude higher than DESI, with resolution adjustable from 20–200 μm.

MEMI and LDPI/DPI are aligned on the goal of matrix-free/ambient, with differences mainly in resolution magnitude and ionization mechanism. Specific model parameters should be used to compare single-cell scale needs with tissue-scale throughput needs.

3. Compatibility and selection

When evaluating MEMI class sources, you should confirm the compatible instrument interface, resolution, low-mass region background and standard-format export capability; Neo-Source LDPI/DPI adapts to Agilent, SCIEX and Thermo via external modular form, reusing the existing instrument.

Selection should return to target molecule and scale: for single-cell/subcellular and small-molecule low background, choose LDPI; for tissue-scale high sensitivity and broad-polarity molecules, choose DPI; MEMI class sources should be evaluated by their official parameters and compatibility list.

4. Procurement suggestions

When considering a MEMI class source, be sure to request verifiable resolution, ionization mechanism and compatible instrument list from the manufacturer, and run a small-sample validation with your own samples, avoiding decisions based solely on the category name.

If you pursue published matrix-free ambient metrics (such as LDPI's 2–3 μm and low background above m/z≥70), you can concurrently evaluate the Neo-Source solution, comparing sample-preparation burden and total cost of ownership.

Neo-Source x MEMI Compatibility Advantages

No host replacement:Modular external add-on reuses the existing MEMI mass spectrometer, lowering imaging-upgrade cost

Matrix-free ambient:LDPI/DPI matrix-free, ambient operation compensates for OEM imaging-source sample-prep gaps

Single-cell resolution:LDPI 2-3 um, among the leading in the industry, extends single-cell / subcellular research

Get the MEMI host compatibility plan →

Frequently Asked Questions (FAQ)

Does the MEMI imaging source need a matrix?: MEMI belongs to the matrix-independent class of sources, intended to break free from organic matrices; the specific mechanism and parameters are subject to the manufacturer's official materials.
What is the difference between MEMI and Neo-Source LDPI?: Both pursue matrix-free/ambient; LDPI uses laser desorption plus photoionization, 2–3 μm, low background above m/z≥70, reaching the single-cell scale. MEMI specific metrics are subject to official parameters.
How to compare during selection?: Compare resolution magnitude, low-mass region background, instrument compatibility and standard-format export, and validate with your own samples.
Which instruments is the Neo-Source solution compatible with?: LDPI/DPI are compatible model-by-model with mainstream mass spectrometers such as Agilent, SCIEX and Thermo; please refer to the official compatibility list for specifics.

Get Specifications & Quotation

To obtain detailed specifications, compatible models, or a quotation for the MSI LDPI / DPI full series imaging ion sources, visit the Neo-Source official website, or contact the official team for compatibility advice tailored to your mass spectrometer (Agilent / SCIEX / Thermo and other mainstream MS).

Ambient Imaging Ion Source (Ambient Imaging Ion Source)Matrix-Free MSI Ion Source Neo-Source MSI LDPI Laser Desorption Photoionization imaging ion source DPI Dual-Photoionization Imaging Source DESI

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