Results 101 to 110 of about 767,670 (302)

Kurzzeitspektroskopische Untersuchungen der Fotoschutzmechanismen an Lichtsammelkomplexen [PDF]

, 2009
In der vorliegenden Arbeit wurden die Photoschutzmechanismen in Pflanzen und Purpurbakterien auf molekularer Ebene experimentell untersucht. Zu diesem Zweck kamen verschiedene spektroskopische Methoden zur Aufklärung der Funktion der dabei vor allem ...
Amarie, Sergiu
core  

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Advances in Photoluminescence and Quenching Mechanism of Carbon Dots

Nanomaterials
Carbon dots (CDs) are zero-dimensional carbon nanomaterials with sizes below 10 nm, with high fluorescence quantum yields, variable emission colours, and excellent photostability.
Qingyun Xiong, Hafiz M. Ahsen Ilyas, Weiyu Cao, Jinping Xiong   +3 more
doaj   +1 more source

Temperature measurement in microchannel liquid flow by measuring fluorescence polarization

Nihon Kikai Gakkai ronbunshu, 2017
A fluid temperature measurement technique based on fluorescence polarization is developed and applied to measure the two-dimensional temperature distributions in microchannel.
Atsushi SUZUKI, Kazuya TATSUMI, Satoshi HORII, Reiko KURIYAMA, Kazuyoshi NAKABE   +4 more
doaj   +1 more source

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

Advanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui, Hiroto Iwasaki, Kosuke Anraku, Ken Albrecht, Yutaka Majima, Seiichiro Izawa   +5 more
wiley   +1 more source

Graphene-Based Fluorescence-Quenching-Related Fermi Level Elevation and Electron-Concentration Surge

, 2016
Intermolecular p-orbital overlaps in unsaturated π-conjugated systems, such as graphene and fluorescent molecules with aromatic structure, serve as the electron-exchanged path.
Jun Yin (94374), Pingping Zhuang (2940801), Cankun Zhang (2590738), Tien-mo Shih (2940798), Qiongyu Li (1714006), Bo Tian (625365), Weiwei Cai (1714009), Weiyi Lin (2940804)   +7 more
core   +1 more source

CdTe Quantum Dots Modified with Cysteamine: A New Efficient Nanosensor for the Determination of Folic Acid

Sensors, 2019
In this paper, we report the synthesis, characterization, and application of a new fluorescent nanosensor based on water-soluble CdTe quantum dots (QDs) coated with cysteamine (CA) for the determination of folic acid (FA).
Doris E. Ramírez-Herrera, Ana Patricia Reyes-Cruzaley, Giselle Dominguez, Francisco Paraguay-Delgado, Antonio Tirado-Guízar, Georgina Pina-Luis   +5 more
doaj   +1 more source

Protein‐Nanoarchitectures for Low‐Field Intracellular Electro‐Immunomodulation

Advanced Functional Materials, EarlyView.
DHQ‐SDH‐mediated binding of AuNPs drives the formation of interconnected, chain‐like nanoarchitectures with enhanced electrical conductivity. These conductive assemblies undergo macrophage uptake and enable low‐field electrical stimulation, promoting M1‐to‐M2 phenotypic switching with decreased iNOS and increased CD206 expression. Such protein‐mediated
Viktoriya Pakharenko, Djanira Rodrigues Negrão, Tanmay Gupta, Robert Jeng, Otavio Augusto Titton Dias, Maia Jaffer‐Diaz, Dinesh Christendat, Mohini Sain   +7 more
wiley   +1 more source

A temperature self-monitoring NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell photothermal converter for photothermal therapy application

Results in Physics, 2019
For developing novel photothermal converting agent with temperature self-reading-out function in photothermal therapy, NaYF4:Dy3+/Yb3+@NaYF4:Er3+/Yb3+ core-shell nanostructure was designed and prepared via a thermal decomposition technique.
Yunci Li, Baojiu Chen, Lili Tong, Xizhen Zhang, Sai Xu, Xiangping Li, Jinsu Zhang, Jiashi Sun, Xin Wang, Yanqiu Zhang, Guozhu Sui, Yuhang Zhang, Xiangqing Zhang, Haiping Xia   +13 more
doaj   +1 more source

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

Advanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi, João Pedro Ferreira Assunção, Michael Bauer, Matthias Diethelm, Wei‐Hsu Hu, Mohammad Jafarpour, Roland Widmer, Antonia Neels, Dimitrios Sapalidis, Bruno F. B. Silva, Roland Hany, Frank Nüesch, Anna Painelli   +12 more
wiley   +1 more source