Design of Polydiacetylene-Phospholipid Supramolecules for Enhanced Stability and Sensitivity
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- Design of Polydiacetylene-Phospholipid Supramolecules for Enhanced Stability and Sensitivity
- Kang, Do Hyun; Jung, Ho-Sup; Lee, Jiseok; Seo, Sungbaek; Kim, Jinsang; Kim, Keesung; Suh, Kahp-Yang
- COLORIMETRIC DETECTION; MOLECULAR RECOGNITION; CHROMATIC TRANSITION; VESICLES; COLOR; SIZE; BIOSENSORS; MEMBRANES; CHROMISM; CHARGE
- Issue Date
- AMER CHEMICAL SOC
- LANGMUIR, v.28, no.19, pp.7551 - 7556
- We present polydiacetylene (PDA) liposome assemblies with various phospholipids that have different head-group charges and phase transition temperatures (T-m). 10,12-Pentacosadiynoic acid (PCDA)-epoxy was used as a base PDA monomer and the insertion of highly charged phospholipids resulted in notable changes in the size of Liposome and reduction of the aggregation of PDA liposome. Among the various phospholipids, the phospholipid with a moderate T-m demonstrated enhanced stability and sensitivity, as measured by the size and zeta potential over storage time, thermochoromic response, and transmission electron microscopy images. By combining these results, we were able to detect immunologically an antibody of bovine viral diarrhea virus over a wide dynamic range of 0.001 to 100 mu g/mL.
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