The formation of radical species in solution can be triggered through thermal or photochemical activation a suitable precursor. This EPR study aimed to establish if these two modes were as effective mesoporous silicas solution. First, calibration system was devised and validated reliably quantify the formation. Alkoxyamines selected generate stable nitroxyl radicals upon heating irradiation. Th...

Generation of a solar fuel on a terawatt scale requires that water is used as electron source. Catalysts for the fourelectron oxidation of water to oxygen need not only to fulfill the rate and size requirements for keeping up with the solar flux, but must be robust and made of earth abundant elements. Benefiting from explorations of first row transition metal oxides as O2 evolving electrocataly...

In this work, new nanoporous silica (Korea Advanced Institute of Science and Technology-6 (KIT-6)-dried or KIT-6-calcined) incorporated with isolated Ti materials with different Si/Ti ratios (Si/Ti = 200, 100, and 50) has been synthesized and investigated to establish photocatalytic reduction of CO2 in the presence of H2O vapors. The properties of the materials have been characterized through N...

It is demonstrated in this paper that silica nanoparticles coated with core/shell gold provide efficient thermal, optical, and morphological properties with respect to the cellulose-polyhedral oligomeric silsesquioxanes (POSS) hybrid system. The one-step synthesis of a silica/gold nanocomposite is achieved with a simultaneous hydrolysis and reduction of gold chloride in the presence of formic a...

We apply mesoporous thin silica films with nanometer-sized pores as drug carriers and incorporate the widely used anticancer drug Doxorubicin. Through single-molecule based measurements, we gain mechanistic insights into the drug diffusion inside the mesoporous film, which governs the drug-delivery at the target-site. Drug dynamics inside the nanopores is controlled by pore size and surface mod...

IEEE 802.16 is an air interface specification for wireless broadband access. IEEE 802.16 has specified multiple service-specific Convergence Sublayers for transmitting upper-layer protocols. The Packet CS (Packet Convergence Sublayer) is used for the transport of all packet-based protocols such as the Internet Protocol (IP) and IEEE 802.3 (Ethernet). The IP-specific part of the Packet CS enable...