Electroporation

Buying guide

The pulse an instrument can generate is what separates one electroporator from the next, and it is the first thing to settle. Bacterial and yeast transformation needs a short, high-voltage exponential decay pulse, often in the kilovolt range across a narrow cuvette gap. Mammalian cells, which rupture at those settings, need a square-wave pulse with independent control of voltage, duration and the number of pulses. A unit built for one is awkward or useless for the other, so match the waveform to the cells before anything else. Ask which cuvette gaps and sample volumes a given model supports, whether it offers both decay and square-wave modes, and what range of field strengths it reaches.

On a used system the electronics age less visibly than the mechanics, so verification centres on the pulse itself. A reconditioned electroporator should arrive with evidence that its output voltage and pulse timing still match the front-panel setting, because a drift of a few percent changes transfection efficiency without any outward sign. Confirm which cuvette holder and electrode assembly come with the unit, since those are consumable parts and a mismatch leaves the instrument unusable on arrival. Where a listing is sold as used rather than factory refurbished, the calibration history is worth requesting directly; parts for the common platforms can be sourced via Questpair if an electrode or holder is missing.

Price on this marketplace covers a wide span, and knowing where a model sits within it tells a buyer as much as the headline figure. The range runs from EUR 43 to EUR 23.240, with the low end holding simple bacterial transformation units and bare modules, and the upper end occupied by multi-well and high-throughput transfection platforms. The brands that dominate the listings, Invitrogen, Lonza, Bio-Rad, BTX, Eppendorf, each anchor a different part of that band: some are known for compact transformation boxes that fit a tight budget, others for programmable mammalian systems that cost considerably more. A used or refurbished electroporator for sale here is more affordable than the equivalent new instrument, which is the main reason a buyer weighing cost against capability looks to the secondary market at all. Compare like with like, a square-wave unit against another square-wave unit, before reading anything into the number.

Types of Electroporation

Which electroporation instruments are listed?

Among the listings that specify a type, the catalogue groups into a handful of related forms. A standalone electroporator is the core: a pulse generator with a cuvette or plate chamber, bought for routine transformation and transfection. Cell transfection devices extend that idea toward mammalian and primary cells, often adding square-wave control and multi-well formats. The broader entries filed as molecular biology equipment and molecular biology instruments cover platforms that pair electroporation with other functions or ship as part of a larger workstation, while a gene delivery system describes the same hardware from the application side, where the point is introducing nucleic acid into a target cell line.

The research field behind this category is molecular biology, and electroporation sits inside transfection and gene delivery as its defining work. These systems carry out bacterial and yeast transformation for cloning, mammalian cell transfection for gene expression studies, and are also used for protein and RNA delivery into primary cells. The technique is common in genomics and in gene editing, where electroporation of a CRISPR ribonucleoprotein into cells is now a standard delivery route, and it supports cell culture work across molecular diagnostics and synthetic biology. A buyer searching for a mammalian cell electroporation system or a bacterial transformation electroporator is looking at different ends of this same catalogue, separated by waveform rather than by brand.

The brands behind the electroporation listings

The listings concentrate around Invitrogen, Lonza, Bio-Rad, BTX, Eppendorf. For a buyer, that concentration is useful in practical terms rather than as a mark of status. A platform that appears often is easier to compare across sellers, its cuvettes and electrode holders are more likely to be in circulation as spares, and a replacement for a failed part is easier to source through Questpair. The spread also covers both ends of the technique: some of these makers are associated with compact transformation units, others with programmable systems built for sensitive cell lines. Matching the brand to the waveform and cuvette format a protocol needs matters more than the name on the front panel.

What a used electroporator costs here

100 percent of the listings are used. Prices range from EUR 43 to EUR 23.240, a spread that reflects the distance between a single-function transformation box and a high-throughput transfection platform rather than a difference in condition. The units come from 13 verified suppliers and distributors across 7 countries, so availability of a particular model varies with what sellers currently hold. Where a buyer needs documentation for a specific instrument, that can be requested through Questpair.