Polyoxometalates-doped Au nanoparticles and reduced graphene oxide: A new material for the detection of uric acid in urine

Modification of nanocrystalline TiO2 coatings with molecularly imprinted TiO2 for uric acid recognition

“…The detection limit of the UA biosensor was estimated to be about 0.01 μM (S/N = 3). It was obvious that MIT/TiO 2 nanoparticle/QCM electrode exhibited superior linear range and lower detection limit to UA molecules while comparing with the previously reported UA sensors (Table ), which guaranteed its possible applications.…”

“…Over the low concentration range (0.04-45 μM), good linearity was obtained, as illustrated in Figure 6B. (Table 1), [7][8][9]11,12,34,35 which guaranteed its possible applications.…”

“…1,2 Recently, the low UA level in the serum and/or cerebrospinal fluid has been proved to be a key biomarker of Parkinson disease. 3 In the past years, some analytical methods have been developed for UA detection, including highperformance liquid chromatography (HPLC), 4 chemiluminescence, 5 electrochemistry, [6][7][8] enzymatic assay, 9,10 fluorescence, 11,12 surface plasmon resonance, 3 and photoelectrochemistry. 11,12 Despite many advances in UA detection, many of these methods still do not meet the growing demand for more sensitive and selective detection of UA.…”

One-pot facile simultaneous in situ synthesis of conductive Ag–polyaniline composites using Keggin and Preyssler-type phosphotungstates

“…21 Due to its biocompatibility, PAni has been also used in biosensors, cell simulators, bio-actuators and drug delivery systems. [22][23][24] CP-NPs composites are synthesized through: electrochemical deposition, 9,15,[24][25][26] solution or drop casting, 27,28 layerby-layer self-assembly, 29,30 and entrapment into sol-gel matrices. 16,[31][32][33][34] Most of these conventional methods and materials have limitations and disadvantages including: process complexity, toxicity, high cost, environmental problems, timeconsuming, high energy loss, low efficiency and low doping.…”

A comprehensive review on thin film-based nano-biosensor for uric acid determination: arthritis diagnosis

“…The AFM images of the composite film showed low surface roughness, which indicates it is suitable for the fabrication of large-area and thin-film electronic devices. In addition, the thickness of the composite film was estimated to be about 3 μm (Figure 2) from the cross-section observations (Bai et al, 2017). The various combinations of conductive polymers with graphene (Grp), carbon nanotubes (CNT's) and metal nanoparticles are tabulated (Prakash et al, 2013) (Table 4).…”