Muthusamy, Selvaraj Rajalakshmi, Kanagaraj Kannan, Palanisamy Zhu, Dongwei Seo, Yeonggil Zhu, Weihua Song, Jong-Won Lee, Kang-Bong Nam, Yun-Sik 2024-01-19T11:02:54Z 2024-01-19T11:02:54Z 2022-08-11 2022-10 0925-4005 https://pubs.kist.re.kr/handle/201004/114525 A straightforward protocol was developed to detect the prostate cancer biomarker citrate, using boronic acid as a new recognition unit for exploring the sequence of a Lewis acid-base reaction, Spiro-lactam ring opening, fol-lowed by FRET sensing strategies. The probe was evolved from rhodamine-indole extended phenylboronic acid (RIB), which reacted with citrate to produce enhanced red fluorescence in the mitochondria of cell lines (in vitro), allowing the in vivo tracking of citrate. The emission changes were monitored in terms of the endogenous (in situ) citrate concentrations to distinguish normal to prostate cancer mice and their dissected prostate tissues. The practicability of the RIB probe was assessed using urine samples, and paper-made sensor strips as a biochemical reagent to detect the citrate and help diagnose prostate cancer in the early stages. English Elsevier BV Targeting citrate as novel strategy in diagnosing prostate cancer using Rhodamine extended red emissive fluorophore: Sensing mechanism and prostate tumor diagnosis applications Article 10.1016/j.snb.2022.132299 1 Sensors and Actuators, B: Chemical, v.369 Sensors and Actuators, B: Chemical 369 N scie scopus 000831648800001 Chemistry, Analytical Electrochemistry Instruments & Instrumentation Chemistry Electrochemistry Instruments & Instrumentation Article RATIOMETRIC FLUORESCENT-PROBE SELECTIVITY SENSOR ASSAY IONS ACID Citrate-boronic acid Lewis acid -base FRET-Spiro-lactam ring Red emissive probe Mitochondria -targeting Endogenous diagnosis