Sulfur-containing, triphenylamine-based red-emitting conjugated polymer/I− assembly as turn-on optical probe for mercury(II) ion

Synthesis of carbazole-based dendritic conjugated polymer: a dual channel optical probe for the detection of I− and Hg2+

“…The analytical performance of dendritic carbazole-based CP fluorescence method was compared with the reported methods for the detection of I − and Hg 2+ ( Tables 2, 3 ). In contrast, although the linear range fitted for I – in this experimental method was relatively narrow, the linear range fitted for the detection of Hg 2+ by this method showed a wider linear range than that reported method in the literature [ 17 , 42 , 43 , 59–61 ]. The calculated detection limit obtained by this experimental method was inferior to the reported detection method [ 17 , 27 , 55 , 56 , 58 , 60 ], and better than the reported method [ 18 , 42 , 43 , 53 , 54 , 57 , 59 , 61 ].…”

“…In contrast, although the linear range fitted for I – in this experimental method was relatively narrow, the linear range fitted for the detection of Hg 2+ by this method showed a wider linear range than that reported method in the literature [ 17 , 42 , 43 , 59–61 ]. The calculated detection limit obtained by this experimental method was inferior to the reported detection method [ 17 , 27 , 55 , 56 , 58 , 60 ], and better than the reported method [ 18 , 42 , 43 , 53 , 54 , 57 , 59 , 61 ]. This method was comparable with the other analytical techniques [ 6 , 7 ], however, the other analytical techniques required high-cost instruments, professional operation, extensive sample pretreatment, inevitably rendering them unsuitable for real-time and in the field detection of I − and Hg 2+ .…”

Nanomaterial-based optical sensors for mercury ions

“…Therefore, it is of great importance to research and develop sensitive sensing strategies for the recognition and detection of Hg 2+ in biological and environmental systems. Traditionally reported approaches available to monitor Hg 2+ in aqueous samples include atomic absorption spectrometry [5,6], atomic fluorescence spectrometry [7-9], inductively coupled plasma-mass spectrometry [10,11], fluorometry [12][13][14][15][16] and electrochemical analysis [17][18][19][20][21][22]. Recently, liquid crystal based sensor system and resonance Rayleigh scattering aptasensor are also be used to detect Hg 2+ [23,24].…”

Synthesis of Sulfonylhydrazone Type Probe with High Selectivity for Rapid Detection of Mercury and Its Application in Adsorption and HeLa Cell

“…Herein, based on previous work of our laboratory, a novel sulfonyl hydrazone probe S1 was synthesized by simple condensation of benzene sulfonyl hydrazine with 4-diphenylamino benzaldehyde (Scheme 1). [34][35][36][53][54][55][56][57][58][59][60][61][62][63][64] As compared to other probes reported before, sulfonyhydrazone based probes S1 displayed superiority from the viewpoint of high selectivity, sensitivity and ease in detection. Moreover, this probe can be applied for the detection of Hg 2＋ in HeLa cells, which shows good biocompatibility and can evidently enhance the fluorescence in live cells imaging.…”