Dinitrophenyl phospholipid

Key words Overshoot-hump -dinitrophenyl phospholipid -Langmuir-Blodgett technique -cooperative aggregation... 

M. M. Timbs, C. L. Poglitsch, M. L. Pisarchick, M. T. Sumner, and N. L. Thompson, Binding and mobility of anti-dinitrophenyl monoclonal-antibodies on fluid-like, langmuir-blodgett phospholipid monolayers containing dinitrophenyl-conjugated phospholipids, Biochim. Biophys. Acta 1064, 219— 228(1991). 

An overshoot-hump in a ir-A curve and the cooperative aggregation among dinitrophenyl moieties in phospholipids at an air/water interface... 

From these experimental findings, it may be considered that the overshoot-hump in the tc-A curve indicates the formation of a condensed layer such as aggregates of the DNP-DPPE molecules, and that the inflection point represents a collapse from a monolayer to some multilayers at the air/water interface. As an overshoot-hump has not been found in the tc-A curves of dipalmitoylphos-phatidylethanolamine (DPPE), the dinitrophenyl moiety in the phospholipids may play an important role in the mechanism of the aggregation between the DNP-DPPE molecules during the compression process. For example, a stacking of the moieties may be indueed at ca. 20 mN/m. 

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