Dual-color photoacoustic lymph node imaging using nanoformulated naphthalocyanines

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• 作者：Changho Lee^a ; ¹ ; Jeesu Kim^a ; ¹ ; Yumiao Zhang^b ; Mansik Jeon^a ; ^d ; Chengbo Liu^c ; Liang Song^c ; Jonathan F. Lovell^b ; ^{jflovell@buffalo.edu" class="auth_mail" title="E-mail the corresponding author} ; Chulhong Kim^a ; ^{chulhong@postech.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Photoacoustic imaging ; Optoacoustic ; Organic nanoparticles ; Naphthalocyanines ; Sentinel lymph node mapping
• 刊名：Biomaterials
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：73
• 期：Complete
• 页码：142-148
• 全文大小：1719 K

文摘

Demarking lymph node networks is important for cancer staging in clinical practice. Here, we demonstrate in vivo dual-color photoacoustic lymphangiography using all-organic nanoformulated naphthalocyanines (referred to as nanonaps). Nanonap frozen micelles were self-assembled from two different naphthalocyanine dyes with near-infrared absorption at 707 nm or 860 nm. These allowed for noninvasive, nonionizing, high resolution photoacoustic identification of separate lymphatic drainage systems in vivo. With both types of nanonaps, rat lymph nodes buried deeply below an exogenously-placed 10 mm thick layer of chicken breast were clearly visualized in vivo. These results show the potential of multispectral photoacoustic imaging with nanonaps for detailed mapping of lymphatic drainage systems.