Synthesis of CdS hierarchical microspheres and their application in electrochemiluminescence sensing

Electrogenerated chemiluminescence of nanomaterials for bioanalysis

“…Just like the ECL from the molecular aggregations, trans-mogrication of ECL nanoemitters into hierarchical architecture is also a practicable approach. 60,89,102,106,[116][117][118][119][120][153][154][155][156] The stacking mode of individual NPs may lead to an important effect on their ECL sensing applications. For example, hierarchical CdS nanotube arrays with high porosity and uniform alignment display considerably enhanced solid-state ECL in H 2 O 2 solution compared with those of random aggregates.…”

“…60,102 The assembly of QDs into nanospheres, 115,116,155 hollow spheres, 155 nanotubes, 60,89,106,117 nanobelts, 89 nanoakes, 119,120 and dendritic 118 morphologies has also been reported with the demonstration of their ECL properties. These works not only greatly extend the ECL systems from quasi-zero nanodots to multidimensional nanomaterials and even microscaled block materials, 155,156 but also provide more biofunctionalized nanoemitters for PL application. 157 From the aspect of electrons and orbitals, every PL emitter may acquire its ECL emission because the only distinction between PL and ECL lies at the stimulating source.…”

“…45 Although the net results are expressed mainly as the change in the ECL intensity, the inner interactions may be different. For example, freely diffused analyte or analyte correlate can directly approach and interact with NPs to produce ECL energy transfer 42,50,109,112,185 or electron transfer, 14,60,61,188 or grab ligands competitively ravaging the surface states of NPs, 15,76,77,79,189 and react with coreactants; 19,22,40,45,47,63,[102][103][104][105][106]110,113,131,154,156,160,162,163,181,188,192 additionally, various analyte-concentrating procedures have been affiliated prior to the above proposed interactions, which intrinsically feature the subtle roles of ECL nanoemitters as well as the coreactants in specic biosensing systems. This preenrichment has been validated through multiple approaches such as the adsorption of coreactants, 45,61,112 potential-driven adsorption, 191 biocatalytic precipitation, 192 etc.…”

Satellite-like CdS nanoparticles anchoring onto porous NiO nanoplates for enhanced visible-light photocatalytic properties

“…As an important semiconductor with a narrow and direct band gap, n-type CdS has been proven to be an excellent visible light photocatalyst in the field of water and air purification. Various CdS nanostructures have been fabricated by physicochemical methods for their practical applications in degradation of organic contaminants [3][4][5].…”

Preparation of flower-like CdS with SDBS as surfactant by hydrothermal method and its optical properties

“…A lot of studies have been devoted to manipulating the shape and size of low dimensional CdS nanocrystals in the last decades [5][6]. Thus, many techniques have been established to prepare CdS nanostructures, such as solvothermal or hydrothermal method [7][8][9], thermal evaporation [10], template method [11], chemical vapor deposition process [12], colloidal method [13] and vapor-liquid-solid assisted process [14]. In addition, as the morphology and size play an extensive role on the physical and optical properties, various morphologies of CdS have been repoted, such as hollow spheres [15], core-shell nanostructures [16], nanorods [17][18], nanowies [19], nanoplates [20], flower-like structures [21] and hierarchical CdS nanocrystals [22][23].…”