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10.1073/pnas.1410162111 http://scihub22266oqcxt.onion/10.1073/pnas.1410162111 C4273384!4273384!25453064     free     free     free Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Proc+Natl+Acad+Sci+U+S+A 2014 ; 111 (50): E5445-54 Nephropedia Template TP {{tp|p=25453064|t=2014. Human infrared vision is triggered by two-photon chromophore isomerization |pdf=|usr=}}{{25453064}} gab.com Text Human infrared vision is triggered by two-photon chromophore isomerization JO: Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=25453064 #FOAvip This study resolves a long-standing question about the ability of humans to perceive near infrared radiation (IR) and identifies a mechanism driving human IR vision. A few previous reports and our expanded psychophysical studies here reveal that humans can detect IR at wavelengths longer than 1,000 nm and perceive it as visible light, a finding that has not received a satisfactory physical explanation. We show that IR light activates photoreceptors through a nonlinear optical process. IR light also caused photoisomerization of purified pigments and a model chromophore compound. These observations are consistent with our quantum mechanical model for the energetics of two-photon activation of rhodopsin. Thus, humans can perceive IR light via two-photon isomerization of visual pigment chromophores. Twit Text FOAVip Human infrared vision is triggered by two-photon chromophore isomerization ????Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=25453064 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25453064 #FOAvip English Wikipedia <ref>{{Cite pmid|25453064}}</ref> Human infrared vision is triggered by two-photon chromophore isomerization #MMPMID25453064 Palczewska G; Vinberg F; Stremplewski P; Bircher MP; Salom D; Komar K; Zhang J; Cascella M; Wojtkowski M; Kefalov VJ; Palczewski K Proc Natl Acad Sci U S A 2014[Dec]; 111 (50): E5445-54 PMID25453064show ga This study resolves a long-standing question about the ability of humans to perceive near infrared radiation (IR) and identifies a mechanism driving human IR vision. A few previous reports and our expanded psychophysical studies here reveal that humans can detect IR at wavelengths longer than 1,000 nm and perceive it as visible light, a finding that has not received a satisfactory physical explanation. We show that IR light activates photoreceptors through a nonlinear optical process. IR light also caused photoisomerization of purified pigments and a model chromophore compound. These observations are consistent with our quantum mechanical model for the energetics of two-photon activation of rhodopsin. Thus, humans can perceive IR light via two-photon isomerization of visual pigment chromophores. äHuman infrared vision is triggered by two-photon chromophore isomeriza(epmc).pdf DeepDyve Pubget Overpricing