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Although several approaches have been developed for detection of CPDs, conventional methods require time-consuming steps. Aquaphotomics, a new approach based on near-infrared spectroscopy (NIRS) and multivariate analysis that determines interactions between water and other components of the solution, has become an effective method for qualitative and quantitative parameters measurement in the solutions. NIR spectral patterns of UVC-irradiated and nonirradiated DNA solutions were evaluated using aquaphotomics for detection of UV-induced CPDs. Groups of UV-irradiated and nonirradiated DNA samples were classified (87.5% accuracy) by soft independent modeling of class analogy (SIMCA). A precise regression model calculated from NIR water spectral patterns based on UVC doses (r Val\u2009=\u20090.9457) and the concentration of cis-syn cyclobutane thymine dimers (cis-syn T&lt;&gt;Ts; r Val\u2009=\u20090.9993) was developed using partial least squares regression (PLSR), while taking advantage of water spectral patterns, particularly around 1400\u20131500\u2009nm. Our results suggested that, in contrast to DNA, the formation of cis-syn T&lt;&gt;Ts increased the strongly hydrogen bonded water. Additionally, NIRS could qualitatively and quantitatively detect cis-syn T&lt;&gt;Ts in isolated DNA aqueous solutions upon UVC exposure.<\/jats:p>","DOI":"10.1038\/srep11808","type":"journal-article","created":{"date-parts":[[2015,7,2]],"date-time":"2015-07-02T10:31:28Z","timestamp":1435833088000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":52,"title":["Detection of UV-induced cyclobutane pyrimidine dimers by near-infrared spectroscopy and aquaphotomics"],"prefix":"10.1038","volume":"5","author":[{"given":"Noriko","family":"Goto","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gyorgy","family":"Bazar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zoltan","family":"Kovacs","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makoto","family":"Kunisada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroyuki","family":"Morita","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seiichiro","family":"Kizaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Sugiyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roumiana","family":"Tsenkova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chikako","family":"Nishigori","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2015,7,2]]},"reference":[{"key":"BFsrep11808_CR1","unstructured":"WHO. 2014, Solar ultraviolet radiation: Global burden of disease from ultraviolet radiation 2006. 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