Results 121 to 130 of about 5,917 (220)
Current, emerging and future technologies for sensing the environment [PDF]
, 2009 This paper reviews current technologies that are used for environmental monitoring, and presents emerging technologies that will dramatically improve our ability to obtain spatially distributed, real-time data about key indicators of environmental ...
Diamond, Dermot
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Photoacoustics: Fluorescence and photoacoustic imaging are complementary modalities that provide distinct advantages for biological imaging: fluorescence microscopy offers high sensitivity and resolution, while photoacoustic imaging enables deeper penetration in ...
Nikita Kaydanov +4 more
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Micro-patterning and actuation of phosphonium-based photo-responsive ionogels for micro-fluidic applications [PDF]
, 2011 The concept of “Micro-total-analysis-Systems” or “Lab-on-chip” has emerged over the past 20-years but, despite of the fact their incredible potential to revolutionise analytical science few outputs have reached the market so far[1].
Benito-Lopez, Fernando +3 more
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Photochemical Response of Electronically Reconfigurable Molecule-Based Switching Tunnel Junctions [PDF]
, 2002 Robust molecular devices may be based on the photo‐switching between spiropyran and merocyanine isomers (see Scheme). The equilibrium has been investigated in a Langmuir–Blodgett film and then succesfully sandwiched into a solid‐state tunnel ...
Collier, Charles P. +4 more
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Dynamics of a photochromic spiropyran under aqueous conditions
EPJ Web of Conferences, 2013 The dynamics of a water soluble spiropyran is investigated by means of femtosecond transient absorption spectroscopy in the visible and infrared spectral range revealing an ultrafast reversible switching behavior under aqueous conditions with a high ...
Heckel A. +5 more
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1-Ethyl-3,3-dimethylspiro[indoline-2,8′-phenaleno[1,9-fg]chromene]
IUCrDataThe title pyrene-fused spiropyran derivative, C30H25NO, crystallizes with two molecules in the asymmetric unit with dihedral angles between their fused-ring sub units of 76.20 (8) and 89.38 (9)°.
Xiaoming Zhu., Zhen Jiang, Zhiqiang Liu
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Chemical Society Reviews, 2019 Spiropyrans have played a pivotal role in the emergence of the field of chromism following their discovery in the early 20th century, with almost ubiquitous use in materials applications especially since their photochromism was discovered in 1952. Their versatility continues to lend them to application in increasingly diverse fields not least due to ...
Kortekaas, Luuk, Browne, Wesley R.
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Multi-purpose capillary-integrated optical sensors based on spiropyran [PDF]
, 2013 Optical chemical sensors for liquid phase monitoring (overwhelmingly focused on water-based samples) often employ a dye or indicator that is immobilised onto a solid support material.
Benito-Lopez, Fernando +2 more
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Small ScienceVisible light is an important energy source for all living organisms on Earth. Given the importance of visible light, visible light sensors have attracted widespread interest from scientists.
Guiqing Dang +12 more
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, 2018 Smart molecular systems in which spiropyran based molecular switches play a key role are the central focus of this thesis. These systems respond to stimuli (e.g., light, pH, electricity, etc.) through a change in molecular, and thereby material, properties such as color, acidity, or conductivity, amongst others.
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