Highly sensitive electrochemical determination of rutin based on the synergistic effect of 3D porous carbon and cobalt tungstate nanosheets

Ultrasensitive Determination of Natural Flavonoid Rutin Using an Electrochemical Sensor Based on Metal-Organic Framework CAU−1/Acidified Carbon Nanotubes Composites

“…AuNPs-HCNT/GCE [47] 81 nM 1.0 × 10 −7 -3.1 × 10 −5 M CV PdPc-MWCNT/GCE [48] 75 nM 1.0 × 10 −7 -5.1 × 10 −5 M CA N-MCS@GO/GCE [49] 50 nM 5.0 × 10 −7 -1.9 × 10 −4 M DPV PtNP-rGO/GCE [50] 10 nM 5.0 × 10 −8 -1 × 10 −5 M DPV Au-Ag nanorings/NG [51] 10 nM 5.0 × 10 −7 -2.4 × 10 −4 M DPV [Mn III Mn II (Ldtb)(µ-OAc) 2 ] BPh 4 [52] 17.5 nM 9.99 × 10 −7 -6.54 × 10 −5 M SWV rGO-InTAPc/GCE [53] 2.0 nM 5.0 × 10 −9 -1.0 × 10 −4 M DPV PC/CoWO 4 /GCE [54] 0.45 ng/mL 5-5000 ng/mL DPV CAU−1/MWCNT/GCE (This work) 0.67 nM 1.0 × 10 −9 -3.0 × 10 −6 M DPV AuNPs-HCNTs: gold nanoparticle-decorated helical carbon nanotube nanocomposites; PdPc-MWCNTs: palladium phthalocyanine-multiwalled carbon nanotube; CA: chronoamperometry; N-MCS: N-doped mesoporous carbon nanospheres; PtNP: platinum nanoparticle; NG: N-doped graphene; [Mn III Mn II (Ldtb)(µ-OAc) 2 ] BPh 4 : mixed-valence diacetate-bridged manganese complex; SWV: square wave voltammograms; rGO-InTAPc: phthalocyanine indium-decorated reduced graphene oxide; PC: porous carbon.…”

A novel electrochemical sensor based on a molecularly imprinted polymer for highly selective and sensitive determination of rutin from herbal supplements and plant extracts

“…12 The effect of RUT on the increase in high-density lipoprotein (HDL) cholesterol and triacylglycerol levels in hyperlipidemic rats was investigated, and it was determined that RUT caused the maximum decrease in the cholesterol level. 14 When a literature review was conducted on the studies performed for RUT analysis, it was seen that the available studies are based on electrochemical nanosensors, [15][16][17][18][19][20][21][22][23][24][25][26][27] capillary electrophoresis, 28 electrochemiluminescence, 29 high-performance liquid chromatography (HPLC) with an ultraviolet (UV) detector, 8,30 HPLC with a diode array detector, 31 HPLC with chemiluminescence (CL) detection, 32 and molecularly imprinted polymer (MIP)-based electrochemical sensors. [33][34][35][36] Although the mentioned studies offer advantages such as high sensitivity for RUT determination, the most important challenges of chromatographic methods are that they require highly skilled operators, expensive equipment, and labor-intensive procedures.…”

An ultrasensitive aptasensor of SARS-CoV-2 N protein based on ion current rectification with nanopipettes

“…Electrochemical detection is frequently used and benefits from quick analysis, low detection limits, and high sensitivity [19] . In 1997, ion current rectification (ICR) was found in nanopipette experiments [20] .…”