A label-free three potential ratiometric electrochemiluminescence immunosensor for cardiac troponin I based on N-(4-aminobutyl)-N-ethylisoluminol functionalized graphene quantum dots

Much Stronger Chemiluminescence of 9-Mesityl-10-methylacridinium Ion than Lucigenin at Neutral Conditions for Co2+ Detection

“…Methanol was used to quench the sulfate radical (SO 4 •– ) and hydroxyl radicals (OH • ). Sodium azide and SOD were used to quench singlet oxygen ( 1 O 2 ) and superoxide anion radicals (O 2 •– ), respectively. − As shown in Figure S3, the CL intensity significantly decreases in the presence of ascorbic acid (AA), methanol, and sodium azide, and the CL intensity only slightly decreases in the presence of SOD. It indicates that sulfate radicals (SO 4 •– ), hydroxyl radicals (OH • ), and singlet oxygen ( 1 O 2 ) may play key roles in the CL system.…”

Mof@Mos2-Based Electrochemical Biosensor for Ca125 Detection

“…Therefore and since aptamers possess lower affinity to small molecules (KD around low micromolar units) than DNA (KD approximately in picomolar or low nanomolar), the detection of aptasensors tends to be more challenging, justifying the efforts on label-free sensing to enhance its analytical response. On the other hand, numerous works can be easily found in the field of labelfree immunosensors for detection of analytes for highly sensitive diagnoses [65][66][67][68].…”

Tetrakis (4-carboxyphenyl) porphyrin and Ru(bpy)32+ modified SiO2 nanospheres for potential and wavelength resolved electrochemiluminescence

“…In recent years, potential resolved electrochemiluminescence (ECL) nanoluminophores have attracted great attention from researchers, due to multiple controllable ECL signals in one electrochemical process, which is of important application potential in precise analysis and simultaneous determination of multiple targets. [1][2][3][4][5] Ding and coworkers first synthesized a potential resolved ECL nanoluminophore, BODIPY dye-capped PbS nanocrystals, which exhibited two ECL emissions in an organic solvent. 1 Then, Cui and coworkers reported a potential resolved ECL nanoluminophore, tetrakis (4-carboxyphenyl) porphyrin (TCPP) and N-(4-aminobutyl)-N-ethylisoluminol-coated TiO 2 , which was able to generate three ECL peaks in an aqueous solution.…”