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Carbocyanine-Based Optical Sensor Array for the Discrimination of Proteins and Rennet Samples Using Hypochlorite Oxidationстатья Исследовательская статья
- Авторы: Shik Anna V., Stepanova Irina A., Doroshenko Irina A., Podrugina Tatyana A., Beklemishev Mikhail K.
- Журнал: Sensors
- Том: 23
- Номер: 9
- Год издания: 2023
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 4299
- Номер статьи: 4299
- DOI: 10.3390/s23094299
- Аннотация: Optical sensor arrays are widely used in obtaining fingerprints of samples, allowing for solutions of recognition and identification problems. An approach to extending the functionality of the sensor arrays is using a kinetic factor by conducting indicator reactions that proceed at measurable rates. In this study, we propose a method for the discrimination of proteins based on their oxidation by sodium hypochlorite with the formation of the products, which, in turn, feature oxidation properties. As reducing agents to visualize these products, carbocyanine dyes IR-783 and Cy5.5-COOH are added to the reaction mixture at pH 5.3, and different spectral characteristics are registered every several minutes (absorbance in the visible region and fluorescence under excitation by UV (254 and 365 nm) and red light). The intensities of the photographic images of the 96-well plate are processed by principal component analysis (PCA) and linear discriminant analysis (LDA). Six model proteins (bovine and human serum albumins, γ-globulin, lysozyme, pepsin, and proteinase K) and 10 rennet samples (mixtures of chymosin and pepsin from different manufacturers) are recognized by the proposed method. The method is rapid and simple and uses only commercially available reagents.
- Добавил в систему: Беклемишев Михаил Константинович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Текст статьи | Shik_gipohlorit._Sensors_2023.pdf | 3,7 МБ | 28 апреля 2023 [beklem] |
| 2. | Результаты экспериментов | Supplementary Info | Supplementary_Materials_Shik_rev.1.pdf | 770,9 КБ | 28 апреля 2023 [beklem] |