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This proof-of-concept study proposed a novel sensing technique for a label-free and selective detection of 2,4,6-trinitrotoluene (TNT) from 10−12 to 10−4 molar. Amine-terminated nanoparticles were used as TNT bioreceptors to form Meisenheimer complexes. A colorimetric change from green to red was observed after TNT functionalization, which caused by the increased in the nanoparticles separation. AptamerX...
Prostate carcinoma is the most common leading cause of cancer-related deaths in men, aside from lung cancer. To date, proteolytically-active prostate specific antigen (PSA) serine protease is a useful diagnostic serological marker for the early diagnosis and monitoring of prostate cancer. In the past years, researchers executed a lot of research to increase the utility and applicability of PSA detection...
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