Host–guest chemistry of mesoporous silicas: precise design of location, density and orientation of molecular guests in mesopores

M Sohmiya, K Saito, M Ogawa - Science and technology of …, 2015 - iopscience.iop.org
Mesoporous solids, which were prepared from inorganic-surfactant mesostructured
materials, have been investigated due to their very large surface area and high porosity …

Supramolecular surface photochemistry: Cascade energy transfer between encapsulated dyes aligned on a clay nanosheet surface

T Tsukamoto, E Ramasamy, T Shimada, S Takagi… - Langmuir, 2016 - ACS Publications
Three coumarin derivatives (7-propoxy coumarin, coumarin-480, and coumarin-540a, 2, 3,
and 4, respectively) having different absorption and emission spectra were encapsulated …

Regulation of the collisional self-quenching of fluorescence in clay/porphyrin complex by strong host–guest interaction

Y Ishida, T Shimada, H Tachibana… - The Journal of …, 2012 - ACS Publications
This paper proposes a novel methodology to improve noncollisional photochemical
reactions such as Förster resonance energy transfer on solid surfaces. Since an excited …

Structure resembling effect of clay surface on photochemical properties of meso-phenyl or pyridyl-substituted monocationic antimony (V) porphyrin derivatives

T Tsukamoto, T Shimada, S Takagi - RSC Advances, 2015 - pubs.rsc.org
Four types of meso-phenyl or pyridyl-substituted monocationic antimony (V) porphyrin
derivatives (SbVPors)—5, 10, 15, 20-tetraphenyl; 5, 10, 15-triphenyl-20-mono (4-pyridyl); 5 …

Possible roles of the spatial distribution of organic guest species in mesoporous silicas to control the properties of the hybrids

M Ogawa, K Saito, M Sohmiya - European Journal of Inorganic …, 2015 - Wiley Online Library
Mesoporous silicas are promising materials for the construction of host–guest hybrids by the
accommodation of functional unit/guest species into the mesopore, and moreover, by …

Ultrabright dye-loaded spherical polyelectrolyte brushes and their fundamental structure-fluorescence tuning principles

H Masoomi, Y Wang, X Fang, P Wang, C Chen, K Liu… - Nanoscale, 2019 - pubs.rsc.org
Ultrabright fluorescent particles (UFPs) have attracted increasing attention because of their
outstanding signal amplification functions. However, there is still an urgent demand for …

Two dimensional size controlled confinement of poly (vinyl pyrrolidone) in the interlayer space of swelling clay mineral

M Sohmiya, S Omata, M Ogawa - Polymer Chemistry, 2012 - pubs.rsc.org
A water soluble polymer, poly (vinyl pyrrolidone)(PVP), was intercalated into the two
dimensional interlayer space of a layered silicate, synthetic saponite (Sumecton SA; …

Organic xerogels doped with Tris (2, 2′-bipyridine) ruthenium (II) as hydroxyl radical promoters: Synthesis, characterization, and photoactivity

JJ Salazar-Rábago, M Sánchez-Polo… - Chemical Engineering …, 2016 - Elsevier
Xerogels based on resorcinol-formaldehyde (XRF) doped with different doses of Tris (2, 2′-
bipyridine) ruthenium (II)(RuBpy) were synthesized and characterized, and their …

[PDF][PDF] Molecular confinement in fluorescent magnetic mesoporous silica nanoparticles: effect of pore size on multifunctionality

J Zhang, JM Rosenholm, H Gu - ChemPhysChem, 2012 - academia.edu
In the past decade, multifunctional composite nanomaterials have increasingly been applied
in the forefront of nanomedicine including simultaneous diagnostics and therapy of …

Photochemical chlorination and oxygenation reaction of cyclohexene sensitized by Ga (III) porphyrin–clay minerals system with high durability and usability

T Tsukamoto, T Shimada, T Shiragami… - Bulletin of the …, 2015 - academic.oup.com
Photochemical chlorination and oxygenation reaction of cyclohexene sensitized by gallium
(III) porphyrin–clay hybrid compound was investigated. Gallium (III) porphyrin did not …