Honeycomb-like nitrogen-doped porous carbon supporting Pt nanoparticles as enzyme mimic for colorimetric detection of cholesterol

A colorimetric nanoprobe based on enzyme-immobilized silver nanoparticles for the efficient detection of cholesterol

“…Therefore, it is essential to detect both high and low levels of cholesterol. 15 Various methods such as electrochemical sensing [16][17][18][19][20][21][22] uorometric analysis, [23][24][25] chromatographic analysis, [26][27][28] molecular imprinting, 29 surface plasmon resonance, 30 eld-effect transistor sensors, 31 chemiluminescence, 32 and colorimetric methods 33,34 have been reported to detect cholesterol and H 2 O 2 . Among these methods, colorimetric detection is of great interest due to its simplicity, low cost, high sensitivity, and good selectivity.…”

Synthesis of Surface‐Modification‐Oriented Nanosized Molybdenum Disulfide with High Peroxidase‐Like Catalytic Activity for H2O2 and Cholesterol Detection

“…The ab-normalH 2 O 2 level in tissues can potentially induce various types of damage to cellular compartments, consequently causing aging, atherosclerosis, cancer,a nd renal diseases. Therefore, it is extremelye ssential to establish reliable methods to detectc holesterol with high sensitivitya nd selectivity.T od ate, various methods such as electrochemistry sensors, [6][7][8][9][10][11][12] fluorometric analysis, [13][14][15] chromatographic analysis, [16][17][18] molecular imprinting techniques, [19] surface plasma resonance, [20] fieldeffect-transistor sensors, [21] chemiluminescence, [22] and colorimetric methods [23,24] have been reported to detect cholesterol and H 2 O 2 .A mongt hem, the colorimetric methodi sp opular becauseo fi ts rapid ands imple operation as well as good reproducibility.I na ddition, the color change during colorimetric detection could be directly observed by the eyes insteado fb y using expensive instruments. [25,26] It is well known that natural horseradish peroxidase (HRP) can be used for colorimetricd etection.…”

“…Therefore, it is extremely essential to establish reliable methods to detect cholesterol with high sensitivity and selectivity. To date, various methods such as electrochemistry sensors, fluorometric analysis, chromatographic analysis, molecular imprinting techniques, surface plasma resonance, field‐effect‐transistor sensors, chemiluminescence, and colorimetric methods have been reported to detect cholesterol and H 2 O 2 . Among them, the colorimetric method is popular because of its rapid and simple operation as well as good reproducibility.…”

Switching Peroxidase-Mimic Activity of Protein Stabilized Platinum Nanozymes by Sulfide Ions: Substrate Dependence, Mechanism, and Detection

“…Platinum (Pt) nanomaterials have received increasing attention since they have glamorous features such as small size, excellent catalytic performance, and good biocompatibility. − Recently, Pt nanomaterials have been reported to possess enzyme-like activities, − but application of the enzyme-like activities of the Pt nanozymes in biological and environmental areas remains largely unexplored. Thus, controlling the size and structures of Pt nanozyme to achieve superior enzymatic activities and multiple functions is challenging.…”