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10.1117/1.3575168 http://scihub22266oqcxt.onion/10.1117/1.3575168 C4493565!4493565!21639581     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=21639581&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215       J+Biomed+Opt 2011 ; 16 (5): ä Nephropedia Template TP {{tp|p=21639581|t=2011. Terahertz sensing in corneal tissues |pdf=|usr=}}{{21639581}} gab.com Text Terahertz sensing in corneal tissues JO: J Biomed Opt http://www.kidney.de/pget.php?&tw=1&pmid=21639581 #FOAvip This work introduces the potential application of terahertz (THz) sensing to the field of ophthalmology, where it is uniquely suited due to its nonionizing photon energy and high sensitivity to water content. Reflective THz imaging and spectrometry data are reported on ex-vivo porcine corneas prepared with uniform water concentrations using polyethylene glycol (PEG) solutions. At 79% water concentration by mass, the measured reflectivity of the cornea was 20.4%, 14.7%, 11.7%, 9.6%, and 7.4% at 0.2, 0.4, 0.6, 0.8, and 1 THz, respectively. Comparison of nine corneas hydrated from 79.1% to 91.5% concentration by mass demonstrated an approximately linear relationship between THz reflectivity and water concentration, with a monotonically decreasing slope as the frequency increases. The THz-corneal tissue interaction is simulated with a Bruggeman model with excellent agreement. THz applications to corneal dystrophy, graft rejection, and refractive surgery are examined from the context of these measurements. Twit Text FOAVip Terahertz sensing in corneal tissues ????J Biomed Opt http://www.kidney.de/pget.php?&tw=1&pmid=21639581 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=21639581 #FOAvip English Wikipedia <ref>{{Cite pmid|21639581}}</ref> Terahertz sensing in corneal tissues #MMPMID21639581 Bennett DB; Taylor ZD; Tewari P; Singh RS; Culjat MO; Grundfest WS; Sassoon DJ; Johnson RD; Hubschman JP; Brown ER J Biomed Opt 2011[May]; 16 (5): ä PMID21639581show ga This work introduces the potential application of terahertz (THz) sensing to the field of ophthalmology, where it is uniquely suited due to its nonionizing photon energy and high sensitivity to water content. Reflective THz imaging and spectrometry data are reported on ex-vivo porcine corneas prepared with uniform water concentrations using polyethylene glycol (PEG) solutions. At 79% water concentration by mass, the measured reflectivity of the cornea was 20.4%, 14.7%, 11.7%, 9.6%, and 7.4% at 0.2, 0.4, 0.6, 0.8, and 1 THz, respectively. Comparison of nine corneas hydrated from 79.1% to 91.5% concentration by mass demonstrated an approximately linear relationship between THz reflectivity and water concentration, with a monotonically decreasing slope as the frequency increases. The THz-corneal tissue interaction is simulated with a Bruggeman model with excellent agreement. THz applications to corneal dystrophy, graft rejection, and refractive surgery are examined from the context of these measurements. äTerahertz sensing in corneal tissues (epmc).pdf DeepDyve Pubget Overpricing