One-step fabrication of boronic-acid-functionalized carbon dots for the detection of sialic acid

Amplified Electrochemical Aptasensor for Sialic Acid Based on Carbon‐Cloth‐Supported Gold Nanodendrites and Functionalized Gold Nanoparticles

“…The limit of detection, calculated from 3σ of the baseline signals, was approximately 60 nM for the SA. As illustrated in Table 1, the obtained detection limit of this aptasensor was lower or comparable to that of other reported methods such as mass spectrometry, [12] electrochemical assays, [13][14][15][16][17][18] fluorescent sensors, [19][20][21][22] surface-enhanced Raman scattering, [23][24][25] and others. [26][27][28][29][30][31][32][33] The high sensitivity could be attributed to the double signal amplification of CC-supported AuNDs as the substrate electrode and functionalized AuNPs as the electrochemical probe.…”

“…Relying on the bonding of boronic acids with the triol side chains of SA, most chemosensors endow boronic acid with enormous potential as a competitive receptor for SA detection. Thus, a variety of techniques including mass spectrometry, [12] electrochemical assays, [13][14][15][16][17][18] fluorescent sensors, [19][20][21][22] surface-enhanced Raman scattering, [23][24][25] and others [26][27][28][29][30][31][32][33] have been designed for the SA detection based on the above recognition. These methods have high sensitivity for the detection of SA.…”

Synergistic Enhancement Effects of Carbon Quantum Dots and Au Nanoclusters for Cathodic ECL and Non‐enzyme Detections of Glucose

“…FT‐IR spectra demonstrated the presence of boronic acid groups on the surface of CQDs after synthesis (Figure B). Transmission peaks at 3334 cm −1 , 1623 cm −1 , and 1421 cm −1 corresponded to the O−H, C=C, and B−O stretching vibration, respectively . The crystal nanostructures of CQDs and Au NCs were characterized by transmission electronic microscopy (TEM) and high‐resolution TEM (HRTEM) (Figure C and D).…”

“…Synthesis of CQDs . CQDs were synthesized by hydrothermal method according a previous study . Firstly, 0.24 g PBA was dissolved in 23.9 mL ultrapure water, and the solution was bubbled with N 2 for 40 min to remove O 2 .…”

A water-soluble boronic acid sensor for caffeic acid based on double sites recognition

“…[30][31][32][33] Boronic acid derivatives and their utility in diols sensing including: (1) in clinical practice, some complications such as diabetes and cancer, etc. are early diagnosed by detecting certain components in body uids, saliva or blood; 34 (2) it can be used to test the content of certain ingredients in drug or food products; 35 (3) in the future, uorescence guided surgery (FGS) can also help doctors determine tumor boundaries and nd metastases in the clinic, and guide surgeons to accurately remove tumors. In addition, the structure of 2-aryl-quinoline-4carboxy derivatives has a large aromatic conjugated system, it has good uorescent properties.…”