Chiral recognition of penicillamine enantiomers using hemoglobin and gold nanoparticles functionalized graphite-like carbon nitride nanosheets via electrochemiluminescence

Tuning the surface plasmon resonance in gold nanocrystals with single layer carbon nitride

“…Such behavior was earlier reported for the cases of aggregation of Au NCs induced by the addition of various ligands, in particular mercapto-and aminocontaining molecules. 8,9,[17][18][19]41 We note also that no appreciable changes in the spectral properties of Au NCs were observed upon addition of aqueous solution of only tetraethylammonium hydroxide and NaOH with no SLCN present, indicating that all above-discussed variations originate from interactions between Au NCs and SLCN nanosheets.…”

“…Gold nanocrystals (NCs) belong to the most intriguing and broadly studied objects of current research focused on nanodimensional materials. [1][2][3][4][5] The vivid effect of surface plasmon resonance (SPR) in the visible spectra range typical for Au NCs denes the immense interest in their applications in various optical, opto-electronic, and sensing systems, the latter including surface-enhanced Raman spectroscopic sensing, 6,7 optical and electrochemical sensing, 1,5,8,9 medicine, [3][4][5] and catalysis. 2 It is natural that the issue of tuning the parameters of the SPR absorption band (SPR peak position, band shape and intensity, etc.)…”

“…Controlled aggregation is also an efficient way of inuencing the SPR properties of Au NCs, 1,8,9,11,[16][17][18][19] however, it compromises the individual nanometer character of Au NCs, that can be crucial, for example, in bio-medical applications. 20 In this view, the issue of tuning the SPR properties of Au NCs without altering considerably their morphology still remains a challenge.…”

Graphitic-phase carbon nitride-based electrochemiluminescence sensing analyses: recent advances and perspectives

“…20 photoelectrochemical active materials, especially graphene-like materials, are introduced to develop the advanced ECL detection platforms. [21][22][23][24][25] Graphitic-phase carbon nitride (g-C 3 N 4 ) materials, as the crucial polymeric and metal-free semiconductors with the band gap of 2.7 eV, are mainly composed of carbon and nitrogen atoms and possess 2D graphite-like architectures with the interlamellar spacing of ca. 3.3 nm.…”

Recent Advances in Graphitic Carbon Nitride-Based Chemiluminescence, Cataluminescence and Electrochemiluminescence

“…Then an ECL sensor for perfluorooctanoic acid (PFOA) was constructed on the basis of the quenching effect of PFOA on ECL signal, due to the redox reaction between the electrogenerated strong oxidants produced from the reduction of S 2 O 8 2-. Lin et al designed a stereo-selective ECL sensor for specific recognition of penicillamine (Pen) enantiomers using hemoglobin (Hb), as chiral selector, and gold-nanoparticlefunctionalized g-C 3 N 4 nanosheet composite modified glassy carbon electrodes as sensing unit [149].…”