Morphology-dependent supramolecular photocatalytic performance of porphyrin nanoassemblies: from molecule to artificial supramolecular nanoantenna

Arginine-Mediated Self-Assembly of Porphyrin on Graphene: A Photocatalyst for Degradation of Dyes

“…Free-standing TCPP aggregates in the presence of arginine reveal a Soret absorption peak at 417 nm and the four weak absorption peaks of Q bands in the TCPP monomer are replaced by a strong peak at 666 nm also with three weak Q-bands in its original TCPP. The distinct bathochromic and hypsochromic shifts by 3 nm in Soret band of the TCPP confirm aggregation formation in comparison with monomeric TCPP, which indicates that most of the TCPP building blocks form J-type supramolecular assemblies with induction of arginine [15,37,42]. Similarly, the UV-vis spectrum of GNPs@TCPP nanofibers also show a Soret peak at approximately 420 nm and one strong peak at 666 nm along with three relatively weak peaks in Q-band region.…”

“…Supramolecular nanostructures via self-assembly are usually produced via non-covalent interactions such as hydrogen bonding, electrostatic, van der Waals interactions, π-π interactions, and coordination. These soft materials are fabricated by self-assembly protocols including ionic self-assembly [14], surfactant-assisted self-assembly (SAS) [15], and reprecipitation [16,17]. Many well-defined and controlled nanostructures such as nanoprisms, nanotubes, nanofibre bundles, nanorods, nanosheets, nanospheres, nanoclovers, nanowires and nanoparticles have thus been reported [14,16,[18][19][20][21][22].…”

Assembly of π‐Conjugated Nanosystems for Electronic Sensing Devices

“…[89,[93][94][95][96] As a preliminary example for a proof-of-concept application of their single nanofiber, oxo-[5,10,15,20-tetra (4-pyridyl) porphyrinato] titanium (IV) (TiOTPyP) 1D nanofibers were integrated into single nanofiber-based two-end nanoelectronics and their electrical characteristics in terms of the responses toward H 2 O 2 vapor were investigated at 25 °C. [89] Compared to the devices of thin-film geometry, it was found that such single nanofiberbased electronics could serve as high-performance sensors of a satisfactory stability, reproducibility, and selectivity for an expeditious detection of vapor-phase H 2 O 2 .…”

Dual enzyme mimicry exhibited by ITO nanocubes and their application in spectrophotometric and electrochemical sensing

“…In 3þ þ OH À The oxyl radical production was also confirmed by EPR spectra. 39 The results obtained from the cyclic voltammetric (CV) and amperometric techniques (Fig. S6 † depicted the response of the DMPO-OH spin adducts formed by illumination at λ = 365 nm.…”