Carbon microelectrodes for spike recording and microiontophoresis
Our Carbostar series carbon fiber (CF) microelectrodes are made of 7 μm PAN-type graphite monofilament built in borosilicate glass sheathing that provides mechanical support and electrical insulation. They are excel- lent for extracellular potential or spike recordings as well as for electrochemical measurements in vitro or in vivo. These CF microelectrodes are manufactured by a unique dry fabrication method so their storage and shipping over great distances are safe. Iontophoresis barrels are self-filling which make their usage easy with plug and play simplicity. Multibarrel models are always manufactured freshly so allow about a 10-day lead time after placing the order. Their guaranteed shelf life is three months. A female socket mating with the gold- plated pin atop is provided in all shipments. The multibarrel models are also suitable for drug delivery by pres- sure ejection. Standard taper lengths is about 10 mm long. Custom modifications of the standard models are possible for an extra fee. Send in your sketch for a price quote.
These microelectrodes can be conveniently attached to a variety of headstages through our adaptors
A chapter on applications of carbon fiber microelectrodes can be read here.
Spikelmplant-1 Implantable miniature carbon fiber microelectrode
ICFE21025 for 25μm carbon tip
ICFE210100 for 100μm carbon tip
A marvel of miniaturization, this multifunction microelectrode can be as short as 10 mm of total length. A 10 μm carbon fiber is encapsulated in solid borosilicate glass for durable mechanical support and electrical insulation. Its exposed tip serves as a working microelectrode whilst it makes good electrical connection with a micro miniature gold-plated pin atop. A mating female socket is provided with pre-attached insulated lead wire. The conical glass ending and a sharp carbon tip allow easy brain penetration with minimal tissue damage. Two carbon tip lengths are offered: 25 micrometer for neuroelectrical, and, 100 micrometer for neurochemical applications. The carbon tip can be developed into more specific biosensors of many types. Standard lengths are shown; longer than 3.5 mm glass shanks are available on request.