Photo selection

If a polarized laser pulse is used to excite the triplet state then a photo-selected excited state population is created, since the excitation probability of a dipole goes as ... 

On the one hand, the azo BCs inherit most of the excellent properties of azo homopolymers (Ichimura, 2000), such as trans is photoisomerization, photo-selective alignment with azo transition moments almost perpendicular to the polarization direction of the actinic light, and photochemical phase transition, since the trans-azo can be a mesogen because its molecular shape is rodlike, whereas the cis-azio never shows any LC phase because of its bent shape. All the illustrations of the photosensitive performances are shown in Fig. 12.3 (Yu et al., 2005a). 

The evolutionary scenario that is given below suggests that porous ZnS formations of hydrothermal/volcanic origin performed several functions, being involved in the primeval photosynthesis of the first metabolites, in the (photo)selection of the first RNA-like polymers, and in their protection from photodestruction. 

The role of reproducing, illuminated ZnS settings may have been in enabling the (photo)selection of the first replicating entities. Hence, this solar-powered selection may have been a link between abiogenic reproducing systems and the first replicators. 

The suggested concept invokes (photo)selection as a driving force - in the straightforward physical sense — in the emergence of increasingly complex biopolymers. 

Carlson TA, Photo selection and Auger Spectroscopy, Plenum Press, New York, 1975. 

Project Reference QLK5-CT-2001-42429, Development of a 100% Biodegradable and Photo-selective Mulch Film for Sustainable Agriculture Running from 2001-12-17 to 2002-04-16. 

The increase in productivity and intensity of agriculture demanded by labour and fixed costs, leads to downgauging of mulch films and there is increasing demand for fimctionalization of films to enhance value. Examples of functional films vary from photo-selective coloration to enhance... 

Griffin, D.R., Kasko, A.M. Photo-selective delivery of model therapeutics from hydrogels. ACS Macro Lett. 1(11), 1330-1334 (2012)... 

Michl, J., and E.W. Thulstrup. 1986. Spectroscopy with Polarized Light Solute Alignment by Photo selection, in Liquid Crystals, Polymers, and Membranes. VCR, New York. 

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