Results 51 to 60 of about 2,975 (190)

Strategies for preparing fluorescently labelled polymer nanoparticles [PDF]

, 2014
There is great interest in the use of fluorescent polymer nanoparticles as optical imaging agents. When designing and synthesising a fluorescent polymer nanoparticle imaging agent there is a large variety in both the particle formation and dye attachment
O'Reilly, Rachel K., Robin, Mathew P.
core   +2 more sources

Excited‐State Proton Transfer in Push‐Pull N‐Methyl Pyridium Reversible Super‐Photoacids Ruled by Intramolecular Hydrogen‐Bond‐Like Interactions

Chemistry – A European Journal, Volume 31, Issue 70, December 12, 2025.
Push‐pull A+‐π‐D N‐methyl pyridinium derivatives were found to act as efficient reversible superphotoacids. Upon excitation, they undergo a fast ESPT but recombine with the released proton when the excitation is turned off. In the ortho isomers, intramolecular hydrogen‐bond‐like interactions between the hydroxyl group and the ethenic hydrogen are ...
Alessio Cesaretti, Carmela Bonaccorso, Martina Alebardi, Alessandro Grasso, Rossana Quinzi, Benedetta Carlotti, Fausto Elisei, Cosimo G. Fortuna, Anna Spalletti   +8 more
wiley   +1 more source

Investigating nano-structuring within imidazolium ionic liquids: A thermodynamic study using photochromic molecular probes [PDF]

, 2009
Following previous studies involving the thermal relaxation of spirocyclic compounds we extended our studies to investigate the formation of nano-structured domains in ionic liquids (ILs).
Byrne, Robert, Coleman, Simon, Diamond, Dermot, Minkovska, Stela   +3 more
core   +1 more source

Novel synthesis and characterisation of 3,3-dimethyl-50-(2-benzothiazolyl)- spironaphth(indoline-2,30-[3H]naphth[2,1-b] [1,4]oxazine) derivatives [PDF]

, 2009
Novel modified spirooxazines (SOs) with additional chelating groups were synthesised and the crystal structure of one of these was determined. UV–vis spectroscopic characterization of the photoisomerization of the SO derivatives shows that the ...
Alhashimy, Atabekyan, Baillet, Benkovic, Bertelson, Boeyens, Byrne, Byrne, Cao, Chamonttin, Chu, Clegg, Collins, Crano, Deligeorgiev, Dermot Diamond, Desvergne, Favaro, Feringa, Gőrner, Hirschberg, Irie, Jeliazkova, Kawata, Ko, Le Baccon, Lehn, Lokshin, Löhr, Maeda, Miler-Srenger, Millini, Minkin, Minkovska, Nameer Alhashimy, Nishikiori, Phillips, Pimienta, Pina, Preigh, Radu, Robert Byrne, Rosario, Scarmagnani, Schaffner, Stela Minkovska, Tamai, Tamaki, Taylor, Tian, Uznanski, Wojtyk, Zhou   +52 more
core   +1 more source

Photoresponsive Gas‐Permeable Membranes: Fundamentals, Innovations, and Prospects

Advanced Functional Materials, Volume 35, Issue 52, December 23, 2025.
Photoresponsive gas‐permeable membranes can be potentially used for smart packing, carbon capture, hydrogen purification, and optical gas valves due to their remote and non‐contact activation, precise spatial and temporal control, and reversible switching capabilities.
Zhuan Wang, Qilin Li, Bart van der Bruggen, Zhen Jiang, David M. Cahill, Jingliang Li, Shuaifei Zhao   +6 more
wiley   +1 more source

Extending Human Perception of Electromagnetic Radiation to the UV Region through Biologically Inspired Photochromic Fuzzy Logic (BIPFUL) Systems. [PDF]

, 2015
Photochromic Fuzzy Logic Systems have been designed that extend human visual perception into the UV region. The systems are founded on a detailed knowledge of the activation wavelengths and quantum yields of a series of thermally reversible photochromic ...
Albus, Albus, Amanda L. Rightler, B. Mark Heron, Brou, Christopher D. Gabbutt, Conway, Delbaere, di Nunzio, Gegenfurtner, Gentili, Gentili, Gentili, Gentili, Gentili, Gust, Hepworth, Hunt, Lennie, Li, Ling, Lokshin, Ludlow, Maafi, Marshall, Monroy, Pier Luigi Gentili, Solomon, Sung, Szaciłowski, Tovée, Wu, Zadeh, Zadeh, Zeki, Zeki   +35 more
core   +1 more source

Designing Physical Unclonable Functions From Optically Active Materials

Advanced Materials, Volume 37, Issue 49, December 10, 2025.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen, Junfang Zhang, Molly M. Stevens   +2 more
wiley   +1 more source

Photophysics and Inverted Solvatochromism of 7,7,8,8-Tetracyanoquinodimethane (TCNQ) [PDF]

, 2019
We report the absorption, fluorescence, and Raman spectroscopy of 7,7,8,8- tetracyanoquinodimethane (TCNQ) in a variety of solvents. The fluorescence quantum yields (QYs) of linear alkane solutions are similar to one another, but QY is shown to acutely ...
IIMORI Toshifumi, ISHIKAWA Takumi, NAKANO Hideyuki, TAMAYA Honami, TORII Yuto   +4 more
core   +2 more sources

Computer-Assisted Design of Environmentally Friendly and Light-Stable Fluorescent Dyes for Textile Applications. [PDF]

, 2019
Five potentially environmentally friendly and light-stable hemicyanine dyes were designed based on integrated consideration of photo, environmental, and computational chemistry as well as textile applications.
Chen, Guoqiang, Sun, Gang, Tang, Songsong   +2 more
core   +1 more source

Light‐driven micro/nanobots

Nanophotonics, Volume 14, Issue 27, Page 4821-4874, December 2025.
Abstract Modern technological evolution witnesses a fast‐paced progress in the design, science, and technology of light‐driven micro/nanomachines in the recent past. These micromachines have found enormous applications as micro/nanoscale manipulators, micromachined space exploration components, nano‐sized cell positioning and control, and micro ...
Rigvendra Kumar Vardhan, Manish Kumar, Jolly Xavier   +2 more
wiley   +1 more source