Photosensitive polyurethanes applied to the development of CHEMFET and ENFET devices for biomedical sensing

Liquid acrylate‐endcapped biodegradable poly(ϵ‐caprolactone‐co‐trimethylene carbonate). II. Computer‐aided stereolithographic microarchitectural surface photoconstructs

“…[1][2][3][4] To this end, the authors have been developing photocurable biodegradable liquid copolymers and its photofabrication process. Photocurable liquid copolymers designed and develop to this end were composed of trimethylene carbonate (TMC) and -caprolactone (CL), and were di-, tri-, and tetrabranched, each termini of which was capped with a coumarin, [5][6][7][8] phenylazide, 9 or acrylate group.…”

Pathogen detection: A perspective of traditional methods and biosensors

“…They consist of a p-type silicon substrate with two n-doped regions known as source and drain, separated by a short distance (gate) covered by a layer of insulator. The gate insulator is typically SiO 2 and it is covered by an ion selective membrane which is selectively permeable to a certain ion, e.g., K + , Ca 2+ , F − , as described in (Munoz et al, 1997). More details on the functioning of ISFETs are reviewed in (Sandifer and Voycheck, 1999).…”

Photopolymerizable Materials in Biosensorics

“…Polyurethane derivatives proved to be very promising in this direction (Munoz et al, 1997;Puig-Lleixaet al, 1999a;. On their basis the sensor for the determination of monochlor acetate was developed (Puig-Lleixaet al, 1999a).…”

“…Notes, that at the operation of the sensor the decrease of its response value was faster than at storage. With the use of the above mentioned acrylurethane oligomers, cross linking agents (tri-propylen-glycol-di-aldehyde -TPGDA and hexandiol-diacrylate -HDDA), plasticizers (DOS, DOP), ionophores and ion exchangers (valinomycine, nonactine and KTpClPB), urease, and IsFETs it was developed chemosensors for the determination of K + and NH 4 + , as well as a biosensor to monitor the urea level (Munoz et al,1997). PhI was 2,2'-dimetoxyphenil-acetophenon.…”