Molecularspray: large molecule surface science

Here at Molecularspray we design and manufacture compact portable ultra-high vacuum (UHV) electrospray deposition (ESD) systems to facilitate the deposition of complex, fragile and non-volatile molecules on surfaces under UHV conditions.

Our systems are helping research groups around the world in universities and industrial R&D to deposit dye molecules, nanorings, single molecule magnets, quantum dots, polymers, nanorods, proteins... find out more below.


UHV4 Electrospray deposition system

The UHV4 is a modular electrospray deposition source capable of producing a molecular beam from an electrosprayed solution at pressures as low as the 10-8 mbar range. The system features a desolvation entrance capillary, two differentially pumped molecular beam skimmers and a final differentially pumped aperture [...]

High voltage

MSV1020 High voltage power supply

Introduced in 2011 the MSV1020 is probably the smallest, most robust electrospray power supply available. Designed with portable electrospray deposition in mind. Permanently housed in its own robust Peli case, it has a tough brushed stainless steel faceplate and a universal 12V adaptor. The MSV1020 comes with a 1.5 m cable to attach directly [...]

High voltage

MSV1120 Series High voltage power supplies

We are just about to launch our MSV1120 series of high voltage power supplies with the first two units: the MSV1121 single positive channel 5 kV unit and the MSV1122 dual channel positive and negative. Larger than the MSV1020 unit but still very portable with the added feature of external readout and control [...]


Inlet capillary heater add-on unit

To aid desolvation of the electrospray beam as it enters the vacuum system of the UHV4 we've designed the capillary inlet heater that simply slides over the capillary and maintains it at a temperature of 380 K. The heater is thermally shielded in a chemically resistent PEEK casing and runs from a universal 28V supply [...]


Electrospray visulalizer microscope & camera

The visualizer add-on is a high quality 25X microscope and lightsource which is mounted to the front end of the UHV4 to enable the electrospray plume to be monitored during a deposition. It can be used manually with the eye-piece or through the HD video camera coupled to a computer [...]


Stainless Steel Electrospray emitters

Our systems are supplied as standard with the NewObjective stainless steel metal tapertips. We can also supply replacements and emitters of difference sizes. Simply email for a quote.


SK4 Service kit for UHV4 systems

The SK4 service kit & spares set for the UHV4 system has been put together to help you deal with whatever your experiment throws at you. Things do go wrong. You could be in the middle of a key experiment at the synchrotron or on a short visit to another research lab when you break a syringe [...]


Stage 2 & 3 coupling tee and bellows

Stage 2 of the UHV4 series electrospray deposition system can be pumped using the backng pump of the turbo on stage 3 under most circumstances. The S23 coupler simply provides a way to connect the two pumping lines together so that only two scroll pumps and one turbo are required [...]


2013 Entrance flange (CF 2.75")

This redesigned CF2.75" (DN35CF) entrance flange has the entrance capillary fitting machined directly into flange allowing the capillary to be tightly gripped accurately and reproducibly centred at the point where it enters the first skimmer stage. This design allows easy [...]


Syringe with PEEK fittings

This 10 ml gas-tight syringe is modified with PEEK fittings for a leak-free connection to the 1.6 mm (1/16") polymer capillary tubing to that delivers your solution to the electrospray head [...]