{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T07:30:52Z","timestamp":1791963052703,"version":"4.3.4"},"reference-count":26,"publisher":"Optica Publishing Group","issue":"21","license":[{"start":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T00:00:00Z","timestamp":1698192000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T00:00:00Z","timestamp":1698192000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11834008"],"award-info":[{"award-number":["11834008"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11874217"],"award-info":[{"award-number":["11874217"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12027808"],"award-info":[{"award-number":["12027808"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81971629"],"award-info":[{"award-number":["81971629"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2023,11,1]]},"abstract":"<jats:p>\n                    Monitoring microvascular structure and function is of great significance for the diagnosis of many diseases. In this study, we demonstrate the feasibility of OR-PAM to nailbed microcirculation detection as a new, to the best of our knowledge, application scenario in humans. We propose a dual-wavelength optical-resolution photoacoustic microscopy (OR-PAM) with improved local-flexible coupling to image human nailbed microvasculature. Microchip lasers with 532\u2005nm wavelength are employed as the pump sources. The 558\u2005nm laser is generated from the 532\u2005nm laser through the stimulated Raman scattering effect. The flowing water, circulated by a peristaltic pump, maintains the acoustic coupling between the ultrasonic transducer and the sample. These designs improve the sensitivity, practicality, and stability of the OR-PAM system for human\n                    <jats:italic toggle=\"yes\">in vivo<\/jats:italic>\n                    experiments. The imaging of the mouse ear demonstrates the ability of our system to acquire structural and functional information. Then, the system is applied to image human nailbed microvasculature. The imaging results reveal that the superficial capillaries are arranged in a straight sagittal pattern, approximately parallel to the long axis of the finger. The arterial and venular limbs are distinguished according to their oxygen saturation differences. Additionally, the images successfully discover the capillary loops with single or multiple twists, the oxygen release at the end of the capillary loop, and the changes when the nailbed is abnormal.\n                  <\/jats:p>","DOI":"10.1364\/ol.502305","type":"journal-article","created":{"date-parts":[[2023,10,12]],"date-time":"2023-10-12T07:00:17Z","timestamp":1697094017000},"page":"5711","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["In vivo structural and functional imaging of human nailbed microvasculature using photoacoustic microscopy"],"prefix":"10.1364","volume":"48","author":[{"given":"Dongfang","family":"Li","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yue","family":"Yao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianxiang","family":"Zuo","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaye","family":"Xu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Tao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoqin","family":"Qian","sequence":"additional","affiliation":[{"name":"Jiangsu University Affiliated People\u2019s Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaojun","family":"Liu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01rxvg760","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2023,10,25]]},"reference":[{"key":"ol-48-21-5711-R1","doi-asserted-by":"publisher","first-page":"1813","DOI":"10.1007\/s00134-010-2005-3","volume":"36","author":"De Backer","year":"2010","journal-title":"Intensive Care Med."},{"key":"ol-48-21-5711-R2","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1016\/j.mvr.2015.04.004","volume":"100","author":"Bentov","year":"2015","journal-title":"Microvasc. 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