Co–Ni ultrathin metal organic framework nanosheets exhibited extremely high sensitivity, wide linear range, low detection limit and excellent selectivity as a glucose sensing electrode material.
Aptamers
as new modes of detection have strong affinity and specificity
for targets. A novel sensor was developed by constructing a composite
system of specific aptamers and reduced graphene oxide (rGO)/graphitic
carbon nitride (g-C3N4) (GCN) for detecting
the cadmium cation. Attributed to the incorporation of rGO and aptamers
with designed terminal groups as well as the delicate bonding of aptamers
with g-C3N4, this electrochemical biosensor
exhibited good sensitivity, specificity, reproducibility, and stability
for Cd2+ detection. The linear calibration curves range
from 1 nM to 1 μM and from 1 μM to 1 mM, and the limit
of detection (LOD) was calculated to be 0.337 nM. The practical application
of the proposed method was also verified in the real sample.
The recombination of photo‐induced carriers is one of the most fatal restrictions in the high performance of many photocatalysts including graphitic carbon nitride (g‐C3N4). By employing a benzene‐based co‐monomer with the substituents in the matched positions during the thermal‐polymerization, a molecular ring‐substituting doping is successfully realized. The excited electrons and holes under the photo‐irradiation could be regulated into different sections in the crystal by the improved electronic structure. The light absorption, separation of photo‐generated carriers, and electroconductivity are all significantly enhanced in the modified photocatalyst. This substituting doping strategy at molecular level endowed the photocatalyst with an extraordinarily aggrandized hydrogen evolution rate (nearly 12 times), as well as a high stability.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.