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Your search keyword '"Afrooz, Tarokh"' showing total 4 results
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4 results on '"Afrooz, Tarokh"'

2. List of contributors

Author

Randa Abdel-Karim, Ansu Mary Alex, Ancy Milrad Anthony, Rodolphe Antoine, Saritha Appukuttan, Elaheh Babaee, Jaydeep Bhattacharya, Amarnath Bheemaraju, Soumyadip Bhunia, Wei Chen, Jose M. Costa-Fernandez, Jobin Cyriac, Tarasankar Das, Shemsu Ligani Fereja, Beatriz Fernandez, Maria T. Fernandez-Arguelles, Harsh A Gandhi, Tapas Goswami, Morteza Hosseini, Jitha S Jayan, Ramapurath S. Jayasree, Joshy Joseph, Kuruvilla Joseph, Nandakumar Kalarikkal, Sajena Kanangat Saraswathi, Xi Kang, Amirhosein Kefayat, Saeed Nazari Kudahi, Sarathi Kundu, Mathews Kuruvila Manayani, Kitty Joseph Kuruvilla, Deepak Kushwaha, Honglin Liu, Ana Lores-Padin, Meegle S. Mathew, Fatemeh Molaabasi, Ranjita Ghosh Moulick, Ramadurai Murugan, Lakshmi V. Nair, Resmi V. Nair, Vinitha Packirisamy, Subhankar Pandit, Prabhu Pandurangan, Azam Bagheri Pebdeni, Rosario Pereiro, Pradipta Purkayastha, Guillermo Redondo-Fernandez, Jinglin Shen, Ana B. Soldado, Di Sun, Afrooz Tarokh, Sabu Thomas, Ann Mary Tomy, Raji Vijayamma, Xia Xin, Lina Yang, Shiling Yuan, Sanjun Zhang, Yu Zhao, Huangmei Zhou, and Manzhou Zhu

Published
2022

3. Sensitive colorimetric aptasensor based on g-C3N4@Cu2O composites for detection of Salmonella typhimurium in food and water

Author

Azam Bagheri Pebdeni, Morteza Hosseini, Foad Salehnia, Hazha Omar Othman, and Afrooz Tarokh

Subjects
Detection limit, Copper oxide, Salmonella, Chromatography, Aptamer, 010401 analytical chemistry, Graphitic carbon nitride, 02 engineering and technology, 021001 nanoscience & nanotechnology, medicine.disease_cause, 01 natural sciences, 0104 chemical sciences, Analytical Chemistry, Catalysis, chemistry.chemical_compound, chemistry, medicine, Detection performance, 0210 nano-technology, Hydrogen peroxide
Abstract

A new colorimetric aptasensor equipped with a novel composite of graphitic carbon nitride (g-C3N4) nanosheets and copper oxide(I) (Cu2O) nanocrystals is presented for Salmonella typhimurium (S .typhimurium). The dual-purpose structure of this composite simultaneously contributes to superb peroxidase-like activity and interaction with a label-free aptamer. Although g-C3N4@Cu2O effectively creates a visible blue color following the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in presence of hydrogen peroxide (H2O2), this catalytic activity of the composite severely decreases after the interaction with aptamers. In the presence of S. typhimurium in sample, aptamers bound to their specific target. Subsequently, g-C3N4@Cu2O catalytic activity was enhanced in proportion to S. typhimurium concentration. Under optimized conditions, this aptasensor exhibited an excellent detection performance in a range from 1.5 × 101 to 1.5 × 105 CFU/ml, with a detection limit of 15 CFU/ml. Besides, portable detection of S. typhimurium by paper-based model of this method operated successfully in just 6 min. Analysis of spiked milk samples revealed high potential of this method as a sensitive, rapid, and label-free promising tool for S. typhimurium detection.

Published
2021

4. Sensitive colorimetric aptasensor based on g-C

Author

Afrooz, Tarokh, Azam Bagheri, Pebdeni, Hazha Omar, Othman, Foad, Salehnia, and Morteza, Hosseini

Subjects
Paper, Salmonella typhimurium, Benzidines, Metal Nanoparticles, Water, Food Contamination, Biosensing Techniques, Hydrogen Peroxide, Aptamers, Nucleotide, Catalysis, Chromogenic Compounds, Limit of Detection, Colorimetry, Graphite, Nitrogen Compounds, Oxidation-Reduction, Copper
Abstract

A new colorimetric aptasensor equipped with a novel composite of graphitic carbon nitride (g-C

Published
2020

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