Purple membrane preparations having increased holographic diffra

Details Purple membrane preparations having increased holographic diffra Purple membrane preparations having increased holographic diffra

1992-09-11

1994-12-20

Bowers, Jr., Charles L.

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430 2, 359 3, 435 711, 435 712, G03H 102

Patent

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053744926

ABSTRACT:
Purple membrane preparations having an increased holographic diffraction efficiency. The purple membrane preparations have a diffraction efficiency of less than 5 seconds and a resolution of greater than 1,500 lines/mm. The purple membrane preparations are obtainable by adjusting a purple membrane suspension having a photocycle time of at least 10 ms to a pH of between 6 and 11 by means of a buffer, adding from 1% to 10% by weight of a proton donor to this purple membrane suspension, and drying the resultant suspension down to a water content of from 1% to 30% by weight.

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