scholarly journals Facile formulation of a long-wavelength cyanine for optical imaging in the second near-infrared window

2020 ◽  
Vol 8 (15) ◽  
pp. 4199-4205
Author(s):  
Hailey I. Kilian ◽  
Homan Kang ◽  
Nikhila Nyayapathi ◽  
Takeshi Fukuda ◽  
Eeswar Adluru ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Near Infrared ◽  
Simple Formulation ◽  
Long Wavelength ◽  
Infrared Window

A dozen commercial NIR-II dyes are screened for simple formulation and one is applied for in vivo optical imaging in mice.

scholarly journals Novel benzo-bis(1,2,5-thiadiazole) fluorophores for in vivo NIR-II imaging of cancer

2016 ◽  
Vol 7 (9) ◽  
pp. 6203-6207 ◽  
Author(s):  
Yao Sun ◽  
Chunrong Qu ◽  
Hao Chen ◽  
Maomao He ◽  
Chu Tang ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Near Infrared ◽  
Imaging Techniques ◽  
Research Area ◽  
Multidisciplinary Research ◽  
Infrared Window

Optical imaging of diseases represents a highly dynamic and multidisciplinary research area, and second near-infrared window (NIR-II, 1000–1700 nm) imaging is at the forefront of the research on optical imaging techniques.

Gram-scale synthesis of a neodymium chelate as a spectral CT and second near-infrared window imaging agent for visualizing the gastrointestinal tract in vivo

2021 ◽  
Author(s):  
Pengrui Zhuang ◽  
Ke Xiang ◽  
Xiangxi Meng ◽  
Guohe Wang ◽  
Ziyuan Li ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Fluorescence Imaging ◽  
Large Scale ◽  
Near Infrared ◽  
Imaging Agent ◽  
Spectral Ct ◽  
Green Method ◽  
Infrared Window

A facile and green method was developed to fabricate Nd-DTPA on a large scale without byproducts for CT/spectral CT and NIR II fluorescence imaging of the gastrointestinal tract in vivo.

scholarly journals Micelle-based activatable probe for in vivo near-infrared optical imaging of cancer biomolecules

2014 ◽  
Vol 10 (1) ◽  
pp. 187-195 ◽  
Author(s):  
Yoichi Shimizu ◽  
Takashi Temma ◽  
Isao Hara ◽  
Akira Makino ◽  
Ryo Yamahara ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Near Infrared ◽  
Activatable Probe

scholarly journals Assessment of Endothelin-A Receptor Expression in Subcutaneous and Orthotopic Thyroid Carcinoma Xenografts in Vivo Employing Optical Imaging Methods

Endocrinology ◽  
2012 ◽  
Vol 153 (6) ◽  
pp. 2907-2918 ◽  
Author(s):  
Katrin Büther ◽  
Matthijs G. Compeer ◽  
Jo G. R. De Mey ◽  
Otmar Schober ◽  
Michael Schäfers ◽  
...  
Keyword(s):  
Thyroid Carcinoma ◽  
Optical Imaging ◽  
Near Infrared ◽  
Functional Performance ◽  
Thyroid Tumor ◽  
Receptor Expression ◽  
Imaging Methods ◽  
Carcinoma Cell Lines ◽  
Isolated Artery

Endothelin (ET) receptor dysregulation has been described in a number of pathophysiological processes, including cardiovascular disorders, renal failure, and cancer. The aim of this study was to evaluate the expression of the ET-A receptor (ETAR) in murine models of thyroid carcinoma using optical imaging methods. A recently developed near-infrared fluorescent tracer was first assessed in isolated artery preparations for its functional performance in comparison with known ETAR antagonists BQ123 and PD156707. Before evaluation of the tracer in vivo, different thyroid carcinoma cell lines were characterized with respect to their ET receptor expression by RT-PCR and autoradiography. In vivo, sc and orthotopic papillary thyroid tumor xenografts were clearly visualized by fluorescence reflectance imaging and fluorescence-mediated tomography up to 48 h after injection of the tracer. Binding specificity of the probe was demonstrated by predosing with PD156707 as a competing inhibitor. In conclusion, optical imaging with a fluorescent ETAR tracer allows the noninvasive imaging of tumor-associated ETAR expression in vivo. In the future, this technique may help surgeons to evaluate lesion dimensions in intraoperative settings (e.g. thyroidectomy).

scholarly journals Role of Fluorophore Charge on the In Vivo Optical Imaging Properties of Near-Infrared Cyanine Dye/Monoclonal Antibody Conjugates

2015 ◽  
Vol 27 (2) ◽  
pp. 404-413 ◽  
Author(s):  
Kazuhide Sato ◽  
Alexander P. Gorka ◽  
Tadanobu Nagaya ◽  
Megan S. Michie ◽  
Roger R. Nani ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Optical Imaging ◽  
Near Infrared ◽  
Cyanine Dye ◽  
Antibody Conjugates ◽  
Imaging Properties ◽  
In Vivo Optical Imaging

scholarly journals Bright and stable near-infrared Pluronic–silica nanoparticles as contrast agents for in vivo optical imaging

2016 ◽  
Vol 4 (33) ◽  
pp. 5560-5566 ◽  
Author(s):  
Lesan Yan ◽  
Huiquan Wang ◽  
Anqi Zhang ◽  
Calvin Zhao ◽  
Yongping Chen ◽  
...  
Keyword(s):  
Lymph Node ◽  
Sentinel Lymph Node ◽  
Contrast Agents ◽  
Optical Imaging ◽  
Silica Nanoparticles ◽  
Near Infrared ◽  
Circulation Time ◽  
In Vivo Optical Imaging

The IR780@NPs exhibited excellent characteristics for in vivo imaging with a long circulation time and high retention in tumor and sentinel lymph node.

scholarly journals Activatable fluorescence sensors for in vivo bio-detection in the second near-infrared window

2021 ◽  
Author(s):  
Mengyao Zhao ◽  
Benhao Li ◽  
Hongxin Zhang ◽  
Fan Zhang
Keyword(s):  
Fluorescence Imaging ◽  
Near Infrared ◽  
Optical Resolution ◽  
Photon Scattering ◽  
Fluorescence Sensors ◽  
Infrared Window

Fluorescence imaging in the second near-infrared (NIR-II, 1000–1700 nm) window has exhibited advantages of high optical resolution at deeper penetration (ca. 5–20 mm) in bio-tissues owing to the reduced photon scattering and tissue autofluorescence.

In-vivo near-infrared optical imaging of growing osteosarcoma cell lesions xenografted in mice: dual-channel quantitative evaluation of volume and mineralization

2011 ◽  
Vol 52 (9) ◽  
pp. 978-988 ◽  
Author(s):  
Hitoshi Nakayama ◽  
Tomoyuki Kawase ◽  
Kazuhiro Okuda ◽  
Larry F Wolff ◽  
Hiromasa Yoshie
Keyword(s):  
Optical Imaging ◽  
Near Infrared ◽  
Imaging Technique ◽  
Ex Vivo ◽  
Acquisition Time ◽  
Osteosarcoma Cell ◽  
Dual Channel ◽  
Nir Imaging ◽  
Ex Vivo Imaging

Background In a previous study using a rodent osteosarcoma-grafted rat model, in which cell-dependent mineralization was previously demonstrated to proportionally increase with growth, we performed a quantitative analysis of mineral deposit formation using 99mTc-HMDP and found some weaknesses, such as longer acquisition time and narrower dynamic ranges (i.e. images easily saturated). The recently developed near-infrared (NIR) optical imaging technique is expected to non-invasively evaluate changes in living small animals in a quantitative manner. Purpose To test the feasibility of NIR imaging with a dual-channel system as a better alternative for bone scintigraphy by quantitatively evaluating mineralization along with the growth of osteosarcoma lesions in a mouse-xenograft model. Material and Methods The gross volume and mineralization of osteosarcoma lesions were evaluated in living mice simultaneously with dual-channels by NIR dye-labeled probes, 2-deoxyglucose (DG) and pamidronate (OS), respectively. To verify these quantitative data, retrieved osteosarcoma lesions were then subjected to ex-vivo imaging, weighing under wet conditions, microfocus-computed tomography (μCT) analysis, and histopathological examination. Results Because of less scattering and no anatomical overlapping, as generally shown, specific fluorescence signals targeted to the osteosarcoma lesions could be determined clearly by ex-vivo imaging. These data were well positively correlated with the in-vivo imaging data ( r > 0.8, P < 0.02). Other good to excellent correlations ( r > 0.8, P < 0.02) were observed between DG accumulation and tumor gross volume and between OS accumulation and mineralization volume. Conclusion This in-vivo NIR imaging technique using DG and OS is sensitive to the level to simultaneously detect and quantitatively evaluate the growth and mineralization occuring in this type of osteosarcoma lesions of living mice without either invasion or sacrifice. By possible mutual complementation, this dual imaging system might be useful for accurate diagnosis even in the presence of overlapping tissues.

Cyanine-Based Polymer Dots with Long-Wavelength Excitation and Near-Infrared Fluorescence beyond 900 nm for In Vivo Biological Imaging

2020 ◽  
Vol 3 (6) ◽  
pp. 3846-3858 ◽  
Author(s):  
Ming-Ho Liu ◽  
Tzu-Chun Chen ◽  
Juvinch R. Vicente ◽  
Chun-Nien Yao ◽  
Yu-Chi Yang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Biological Imaging ◽  
Near Infrared Fluorescence ◽  
Long Wavelength ◽  
Polymer Dots

In vivo near-infrared fluorescent optical imaging for CNS drug discovery

2020 ◽  
Vol 15 (8) ◽  
pp. 903-915 ◽  
Author(s):  
Maria J. Moreno ◽  
Binbing Ling ◽  
Danica B. Stanimirovic
Keyword(s):  
Drug Discovery ◽  
Optical Imaging ◽  
Near Infrared
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