Boron nitride nanosheet/CuS nanocomposites as mimetic peroxidase for sensitive colorimetric detection of cholesterol

Antioxidant Materials Based on 2D Nanostructures: A Review on Recent Progresses

“…Huang et al proved that VS 2 sheets catalyzes homolytic cleavage of H 2 O 2 in a faster reaction than HRP and the nanozyme also possesses higher affinity to both H 2 O 2 and TMB compared to the native enzyme [115]. The same mechanism was implied for a BN@CuS composite [116], suitable for detection of cholesterol and for an HRP@WS 2 hybrid [150], evidently. Several different sulfides were used as a composite building block with montmorillonites, which are detailed later.…”

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

“…1,5 Consequently, the production of hydrogen peroxide (H 2 O 2 ) is quantied by various procedures. [8][9][10][11][12][13][14] Low levels of cholesterol may be associated with medical conditions such as cancer, depression, anxiety, hopelessness, nervousness, confusion, agitation, and hypocholesterolemia. Total cholesterol levels below 160 mg dL À1 are classied as hypocholesterolemia.…”

“…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.…”