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L Bresnick

Publications and source records attributed to L Bresnick.

2 recordsLinked to original sources

Improved chemiluminescent western blotting procedure.

A chemiluminescent Western blotting procedure and its application in assays for human transferrin and human immunodeficiency virus-I antibodies are described. The procedure is based on a chemiluminescent substrate, adamantyl 1,2-dioxetane aryl phosphate and alkaline phosphatase-labeled detection antibodies. Different membranes (polyvinylidene fluoride, nitrocellulose, nylon) and a proprietary membrane treatment agent (Nitro-Block) have been studied. This sensitive blotting procedure utilizing AMPPD, a polyclonal rabbit anti-transferrin:goat anti-rabbit IgG-alkaline phosphatase detection complex, and a PVDF membrane blocked with Nitro-Block permits the detection of 125 pg (1.6 fmol) of human transferrin. A novel 1,2-dioxetane substrate, CSPD, has also been evaluated.

Adamantane↗

Improved chemiluminescent DNA sequencing.

A new chemiluminescent 1,2-dioxetane substrate, CSPD, shows improved performance over AMPPD when used in our nonisotopic method for DNA sequencing. CSPD differs from AMPPD by the addition of a chlorine atom to the adamantyl group that limits the amount of aggregation of the dioxetane and its dephosphorylated anion. This results in a shorter time elapsing before reaching steady state light emission when detecting nucleic acids on nylon membrane. An additional advantage of CSPD over AMPPD is that the resolution of imaged DNA bands does not degrade over time. These features of CSPD permit rapid acquisition of high-quality DNA sequence data.

Adamantane↗