Highly sensitive bovine serum albumin biosensor based on liquid crystal | Zendy

Vikas Sharma | Zendy; Ajay Kumar | Zendy; Prasun Ganguly | Zendy; A. M. Biradar | Zendy

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Highly sensitive bovine serum albumin biosensor based on liquid crystal

Author(s) -

Vikas Sharma,

Ajay Kumar,

Prasun Ganguly,

A. M. Biradar

Publication year - 2014

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4863740

Subject(s) - bovine serum albumin , homeotropic alignment , biosensor , liquid crystal , substrate (aquarium) , chemistry , chromatography , serum albumin , materials science , analytical chemistry (journal) , biochemistry , optoelectronics , oceanography , geology

A highly sensitive liquid crystal (LC) based bovine serum albumin (BSA) protein biosensor is designed. A uniform homeotropic alignment of nematic LC was observed in BSA free substrate which changed into homogeneous in presence of BSA. The change in the LC orientation is found to depend strongly on BSA concentration. This change in the LC alignment is attributed to the modification in the surface conditions which is verified by contact angle measurements. We have detected an ultra low concentration (0.5 μg/ml) of BSA. The present study demonstrates the utilization of LC in the realization of high sensitivity biosensors.

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