Results 31 to 40 of about 180,433 (381)

Photochemistry [PDF]

Catalysis from A to Z, 2020
openaire   +2 more sources

Hot electrons generated in chiral plasmonic nanocrystals as a mechanism for surface photochemistry and chiral growth.

Journal of the American Chemical Society, 2020
The realization of chiral photochemical reactions at the molecular level has proven to be a challenging task, with invariably low efficiencies originating from very small optical circular dichroism signals. On the contrary, colloidal nanocrystals offer a
L. K. Khorashad, L. Besteiro, M. Correa‐Duarte, S. Burger, Zhiming M. Wang, A. Govorov   +5 more
semanticscholar   +1 more source

Photoactivatable metal complexes : from theory to applications in biotechnology and medicine [PDF]

, 2013
This short review highlights some of the exciting new experimental and theoretical developments in the field of photoactivatable metal complexes and their applications in biotechnology and medicine.
Sadler, P. J., Smith, Nicola A.
core   +1 more source

Fast photochemistry in wintertime haze: Consequences for pollution mitigation strategies.

Environmental Science and Technology, 2019
In contrast to summer smog, the contribution of photochemistry to the formation of winter haze in northern mid-to-high latitude is generally assumed to be minor due to reduced solar UV and water vapor concentrations.
K. Lu, H. Fuchs, A. Hofzumahaus, Z. Tan, Haichao Wang, Lin Zhang, S. Schmitt, F. Rohrer, B. Bohn, S. Broch, Hua-bin Dong, G. Gkatzelis, T. Hohaus, F. Holland, Xin Li, Ying Liu, Yuhan Liu, Xuefei Ma, A. Novelli, P. Schlag, M. Shao, Yusheng Wu, Zhijun Wu, L. Zeng, Min Hu, A. Kiendler‐Scharr, A. Wahner, Yuanhang Zhang   +27 more
semanticscholar   +1 more source

Nonadiabatic Dynamics Simulation of the Wavelength-Dependent Photochemistry of Azobenzene Excited to the nπ* and ππ* Excited States.

Journal of the American Chemical Society, 2020
Azobenzene is one of the most ubiquitous photoswitches in photochemistry and a prototypical model for photoisomerizing systems. Despite this, its wavelength-dependent photochemistry has puzzled researchers for decades.
Jimmy K. Yu, Christoph Bannwarth, Ruibin Liang, E. Hohenstein, T. Martínez   +4 more
semanticscholar   +1 more source

Precursor concentration and temperature controlled formation of polyvinyl alcohol-capped CdSe-quantum dots

Beilstein Journal of Nanotechnology, 2010
Polyvinyl alcohol-capped CdSe quantum dots, with a size within their quantum confinement limit, were prepared in aqueous solution at room temperature, by a simple and environmentally friendly chemical method.
Chetan P. Shah, Madhabchandra Rath, Manmohan Kumar, Parma N. Bajaj   +3 more
doaj   +1 more source

Photochemistry beyond the red limit in chlorophyll f–containing photosystems

Science, 2018
Lower-energy photons do the work, too Plants and cyanobacteria use chlorophyll-rich photosystem complexes to convert light energy into chemical energy. Some organisms have developed adaptations to take advantage of longer-wavelength photons.
Dennis J. Nürnberg, J. Morton, S. Santabarbara, A. Telfer, P. Joliot, L. Antonaru, Alexander V. Ruban, T. Cardona, E. Krausz, A. Boussac, A. Fantuzzi, A. W. Rutherford   +11 more
semanticscholar   +1 more source

An assessment of western North Pacific ozone photochemistry based on springtime observations from NASA's PEM-West B (1994) and TRACE-P (2001) field studies [PDF]

, 2003
The current study provides a comparison of the photochemical environments for two NASA field studies focused on the western North Pacific (PEM-West-B (PWB) and TRACE-P (TP)).
Anderson, BE, Avery, MA, Barrick, JD, Blake, DR, Blake, N, Browell, EV, Chen, G, Crawford, JH, Cunnold, DM, Davis, DD, DiNunno, B, Fenn, MA, Grant, WB, Heikes, BG, Hudgins, CH, Jing, P, Kondo, Y, Lefer, B, Liu, S, Oltmans, S, Sachse, GW, Sandholm, ST, Shetter, RE, Tan, D, Vay, SA   +24 more
core   +2 more sources

Mimicking the Oxygen-Evolving Center in Photosynthesis

Frontiers in Plant Science, 2022
The oxygen-evolving center (OEC) in photosystem II (PSII) of oxygenic photosynthetic organisms is a unique heterometallic-oxide Mn4CaO5-cluster that catalyzes water splitting into electrons, protons, and molecular oxygen through a five-state cycle (Sn, n 
Yang Chen, Yang Chen, Boran Xu, Boran Xu, Ruoqing Yao, Ruoqing Yao, Changhui Chen, Chunxi Zhang   +7 more
doaj   +1 more source

Chiral Plasmonic Nanocrystals for Generation of Hot Electrons: Toward Polarization-Sensitive Photochemistry. [PDF]

Nano letters (Print), 2019
The use of biomaterials, with techniques such as DNA-directed assembly or biodirected synthesis, can surpass top-down fabrication techniques in creating plasmonic superstructures in terms of spatial resolution, range of functionality, and fabrication ...
Tianji Liu, L. Besteiro, T. Liedl, M. Correa‐Duarte, Zhiming M. Wang, A. Govorov   +5 more
semanticscholar   +1 more source