Kim, Jaehyun; Jeon, Joa; Wang, Cong; Chang, Gyu Tae; Park, Jungyul published the artcile< Asymmetric Nanochannel Network-Based Bipolar Ionic Diode for Enhanced Heavy Metal Ion Detection>, Safety of 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, the main research area is asym nanochannel bipolar ionic diode heavy metal ion detection; Biosensor; Bipolar ionic diode; Geometrical optimization; Ion current rectification; Ionic junction.
A higher rectification degree in ionic diodes is required to achieve better performance in applications. Nonetheless, the active geometrical change that is critical for inducing elec. potential asymmetry is difficult to realize in typical ionic diodes because of the intrinsic limitation of the fabrication method. Here, we propose a nanochannel-network-based bipolar diode with a high rectification degree of ≈1600-the highest value realized until now, to the best of our knowledge. Such a high rectification is obtained based on the synergetic effect of the bipolar surface charge and the optimization of the microchannel through exptl. studies and multiphysics numerical simulations. It induces ion concentrations at the heterogeneous junction based on the accumulation effect under the forward potential bias. In particular, this proposed mol. concentration occurs in the ohmic region without vortex and instability that is inevitable at the conventional nano-electrokinetic concentration Combining this accumulation with the horizontally aligned configuration of the nanochannel network membrane (NCNM), a highly sensitive and quant. mercury ion (Hg2+) sensor based on a fluorescent signal is fabricated that allows direct measurement using a general fluorescent microscope. The detection limit of Hg2+ is 10 pM, which is ≈10 times lower than the best detection limit realized so far (≈100 pM) in fluorescent dye-based detection. This demonstrates the potential of asym. NCNM for high-performance ion transport in applications such as energy conversion, based on its design and material flexibility.
ACS Nano published new progress about Convective flow. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Safety of 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one.
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Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles