SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Andreasson U) ;pers:(Li Shiming 1947)"

Sökning: WFRF:(Andreasson U) > Li Shiming 1947

  • Resultat 1-5 av 5
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Bälter, Magnus, 1986, et al. (författare)
  • An All-Photonic Molecule-Based Parity Generator/Checker for Error Detection in Data Transmission
  • 2013
  • Ingår i: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 1520-5126 .- 0002-7863. ; 135:28, s. 10230-10233
  • Tidskriftsartikel (refereegranskat)abstract
    • The function of a parity generator/checker, which is an essential operation for detecting errors in data transmission, has been realized with multiphotochromic switches by taking advantage of a neuron-like fluorescence response and reversible light-induced transformations between the implicated isomers.
  •  
2.
  • Nilsson, Jesper, 1984, et al. (författare)
  • Switching Properties of a Spiropyran-Cucurbit [7] uril Supramolecular Assembly: Usefulness of the Anchor Approach
  • 2012
  • Ingår i: ChemPhysChem. - : Wiley. - 1439-7641 .- 1439-4235. ; 13:16, s. 3691-3699
  • Tidskriftsartikel (refereegranskat)abstract
    • A nitrospiropyran, which was modified with a cadaverine-derived anchor, was investigated with respect to its thermally induced isomerizations, hydrolytic stability of the merocyanine form, and photochromic ring closure. The hostguest complexation of the anchor by the cucurbit[7]uril macrocycle, evidenced by absorption titration, NMR spectroscopy, and electrospray ionization mass spectrometry, produced significant improvements of the switching properties of the photochrome: 1) appearance of the merocyanine form about 70 times faster, 2) practically unlimited hydrolytic stability of the merocyanine (two and a half days without any measureable decay), and 3) fast, clean, and fatigue-resistant photoinduced ring closure back to the spiro form. The importance of an adequate molecular design of the anchor was demonstrated by including control experiments with spiropyrans with a shorter linker or without such structural asset.
  •  
3.
  • Remón Ruiz, Patricia, 1982, et al. (författare)
  • An acido- and photochromic molecular device that mimics triode action
  • 2016
  • Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1364-548X .- 1359-7345. ; 52:25, s. 4659-4662
  • Tidskriftsartikel (refereegranskat)abstract
    • © The Royal Society of Chemistry 2016. The photo-controlled shift of pH titration curves, describing the acidochromic behaviour of a spiropyran switch network, was harnessed for the realisation of a molecular triode. The intricate network can be correctly interpreted with respect to the pH dependence of the main involved species.
  •  
4.
  • Remón Ruiz, Patricia, 1982, et al. (författare)
  • An All-Photonic Molecule-Based D Flip-Flop
  • 2011
  • Ingår i: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 1520-5126 .- 0002-7863. ; 133:51, s. 20742-20745
  • Tidskriftsartikel (refereegranskat)abstract
    • The photochromic fluorescence switching of a fulgimide derivative was used to implement the first molecule-based D (delay) flip-flop device, which works based on the principles of sequential logic. The device operates exclusively with photonic signals and can be conveniently switched in repeated cycles. © 2011 American Chemical Society.
  •  
5.
  • Remón Ruiz, Patricia, 1982, et al. (författare)
  • Molecular Implementation of Sequential and Reversible Logic Through Photochromic Energy Transfer Switching
  • 2011
  • Ingår i: Chemistry - A European Journal. - : Wiley. - 1521-3765 .- 0947-6539. ; 17:23, s. 6492-6500
  • Tidskriftsartikel (refereegranskat)abstract
    • Photochromic spiropyrans modified with fluorophores were investigated as molecular platforms for the achievement of fluorescence switching through modulation of energy transfer. The dyads were designed in such a way that energy transfer is only observed for the open forms of the photochrome (merocyanine and protonated merocyanine), whereas the closed spiropyran is inactive as an energy acceptor. This was made possible through a deliberate choice of fluorophores (4-amino-1,8-naphthalimide, dansyl, and perylene) that produce zero spectral overlap with the spiro form and considerable overlap for the merocyanine forms. From the Förster theory, energy transfer is predicted to be highly efficient and in some cases of 100 % efficiency. The combined switching by photonic (light of λ>530 nm) and chemical (base) inputs enabled the creation of a sequential logic device, which is the basic element of a keypad lock. Furthermore, in combination with an anthracene-based acidochromic fluorescence switch, a reversible logic device was designed. This enables the unambiguous coding of different input combinations through multicolour fluorescence signalling. All devices can be conveniently reset to their initial states and repeatedly cycled.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-5 av 5

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy