Where is t-MALDI-2 stronger than ordinary MALDI?

It stacks MALDI-2 post-ionization on top of transmission MALDI, improving detection and coverage of neutral molecules (weak-signal lipids/metabolites, etc.).

Does t-MALDI-2 need a matrix?

Yes. It still belongs to the MALDI family and relies on matrix spraying and co-crystallization.

How to choose between t-MALDI-2 and Neo-Source LDPI?

Choose LDPI for matrix-free, small-molecule low background, ambient and single-cell scale; choose a t-MALDI-2 class module if you already have a MALDI system and want to expand weak-signal coverage.

Which instruments is LDPI compatible with?

It is 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

t-MALDI-2 transmission-mode MALDI + MALDI-2 post-ionization source

t-MALDI-2 combines transmission-mode MALDI (t-MALDI, where the laser enters from the back of the sample) with MALDI-2 post-ionization (a second laser re-ionizes neutral molecules in the desorption plume), balancing the ion-yield improvement of the transmission configuration with expanded coverage of weak-signal molecules, representing an enhanced form of the vacuum MALDI imaging family.

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

t-MALDI-2 transmission-mode MALDI + MALDI-2 post-ionization source — schematic diagram

1. Technical principle

t-MALDI enters the laser from the back of the sample, reducing surface charge accumulation and improving ion yield; MALDI-2 adds a second laser in the desorption plume to trigger post-ionization of neutral molecules escaping in conventional MALDI, thereby improving detection and spatial coverage of low-abundance molecules such as lipids and metabolites.

This combination still belongs to the MALDI family, requiring matrix spraying and co-crystallization, with relatively complex sample preparation and matrix background in the low-mass region. Its value lies in expanding the molecular dimension of weak-signal molecules on top of the existing MALDI workflow.

2. Differences from Neo-Source LDPI

Neo-Source LDPI uses laser desorption plus photoionization, matrix-free, ambient, with low background above m/z 70 and 2–3 μm resolution (among the leading in the industry), better suited to single-cell/subcellular-scale imaging of small-molecule drugs and metabolites.

t-MALDI-2 improves coverage through matrix plus dual lasers, while LDPI eliminates background through matrix-free photoionization; the two approaches to boosting weak-signal molecule detection differ. If the research targets small-molecule low background and ambient simplified preparation, LDPI is more direct; if you already have a MALDI system and want to expand weak-signal coverage, a t-MALDI-2 class module is the lower-modification-cost option.

3. Compatibility and selection

t-MALDI-2 is mostly provided as a module, requiring pairing with a MALDI imaging system that has the corresponding laser interface; Neo-Source LDPI adapts to Agilent, SCIEX, and Thermo via an external modular form, reusing the existing instrument.

Selection should weigh the analyte polarity, whether matrix pretreatment is acceptable, and instrument compatibility. Specific manufacturer parameters and module compatibility are subject to the latest official release.

4. Procurement suggestions

When considering a t-MALDI-2 class module, you should confirm the second-laser interface, timing control, the balance between matrix and background, and compatibility with the original MALDI instrument.

If the goal is matrix-free, small-molecule low background and single-cell scale, you can also evaluate the Neo-Source LDPI external solution, comparing sample-preparation burden and total cost of ownership.

Neo-Source x t-MALDI-2 Compatibility Advantages

No host replacement:Modular external add-on reuses the existing t-MALDI-2 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 μm, among the leading in the industry, extends single-cell / subcellular research

Get the t-MALDI-2 host compatibility plan →

Frequently Asked Questions (FAQ)

In what respects is t-MALDI-2 stronger than ordinary MALDI?: It stacks MALDI-2 post-ionization on top of transmission MALDI, improving detection and coverage of neutral molecules (weak-signal lipids/metabolites, etc.).
Does t-MALDI-2 need a matrix?: Yes. It still belongs to the MALDI family and relies on matrix spraying and co-crystallization.
How to choose between t-MALDI-2 and Neo-Source LDPI?: Choose LDPI for matrix-free, small-molecule low background, ambient and single-cell scale; choose a t-MALDI-2 class module if you already have a MALDI system and want to expand weak-signal coverage.
Which instruments is LDPI compatible with?: It is 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).

MALDI-2 Post-ionization Enhanced Ion Source Transmission MALDI (t-MALDI)MALDI Neo-Source MSI LDPI Laser Desorption Photoionization imaging ion source Post-ionization Technology (Post-ionization)

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