J-Aggregates of Cyanine Dye for NIR-II in Vivo Dynamic Vascular Imaging beyond 1500 nm

2019 ◽  
Vol 141 (49) ◽  
pp. 19221-19225 ◽  
Author(s):  
Caixia Sun ◽  
Benhao Li ◽  
Mengyao Zhao ◽  
Shangfeng Wang ◽  
Zuhai Lei ◽  
...  
Keyword(s):  
Vascular Imaging ◽  
Cyanine Dye ◽  
J Aggregates

scholarly journals Exploiting cyanine dye J-aggregates/monomer equilibrium in hydrophobic protein pockets for efficient multi-step phototherapy: An innovative concept for smart nanotheranostics

Nanoscale ◽  
2021 ◽  
Author(s):  
Matias Luis Picchio ◽  
Julian Bergueiro Álvarez ◽  
Stefanie Wedepohl ◽  
Roque J Minari ◽  
Cecilia Ines Alvarez Igarzabal ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Contrast Agent ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Cyanine Dye ◽  
Hydrophobic Protein ◽  
Nir Dyes ◽  
Protein Pockets ◽  
J Aggregates ◽  
Innovative Concept

After several decades of development in the field of near-infrared (NIR) dyes for photothermal therapy (PTT), indocyanine green (ICG) still remains the only FDA-approved NIR contrast agent. However, upon NIR...

Birefringence and vascular imaging of in vivo human skin by Jones-matrix optical coherence tomography

2017 ◽  
Author(s):  
En Li ◽  
Shuichi Makita ◽  
Young-Joo Hong ◽  
Deepa Kasaragod ◽  
Yoshiaki Yasuno
Keyword(s):  
Optical Coherence Tomography ◽  
Human Skin ◽  
Vascular Imaging ◽  
Jones Matrix ◽  
Optical Coherence

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 Shortwave Infrared Imaging with J-Aggregates Stabilized in Hollow Mesoporous Silica Nanoparticles

2018 ◽  
Author(s):  
Wei Chen ◽  
ChiAn Cheng ◽  
Emily Cosco ◽  
Shyam Ramakrishnan ◽  
Jakob Lingg ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Contrast Agents ◽  
Silica Nanoparticles ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Mesoporous Silica Nanoparticles ◽  
J Aggregates ◽  
Hollow Mesoporous Silica ◽  
Shortwave Infrared

Tissue is translucent to shortwave infrared (SWIR) light, rendering optical imaging superior in this region. However, the widespread use of optical SWIR imaging has been limited, in part, by the lack of bright, biocompatible contrast agents that absorb and emit light above 1000 nm. J-aggregation offers a means to transform stable, near-infrared (NIR) fluorophores into red-shifted SWIR contrast agents. Here we demonstrate that hollow mesoporous silica nanoparticles (HMSNs) can template the J-aggregation of NIR fluorophore IR-140 to result in nanomaterials that absorb and emit SWIR light. The J-aggregates inside PEGylated HMSNs are stable for multiple weeks in buffer and enable high resolution imaging <i>in vivo</i>with 980 nm excitation.

Molecular Arrangement in Cyanine Dye J-Aggregates Formed on CeO2 Nanoparticles

2018 ◽  
Vol 122 (36) ◽  
pp. 20996-21003 ◽  
Author(s):  
Svetlana L. Yefimova ◽  
Ganna V. Grygorova ◽  
Vladimir K. Klochkov ◽  
Igor A. Borovoy ◽  
Alexander V. Sorokin ◽  
...  
Keyword(s):  
Ceo2 Nanoparticles ◽  
Cyanine Dye ◽  
Molecular Arrangement ◽  
J Aggregates

In vivo photoacoustic chorioretinal vascular imaging in albino mouse

2014 ◽  
Vol 12 (5) ◽  
pp. 051704-51707 ◽  
Author(s):  
Wei Song Wei Song ◽  
Qing Wei Qing Wei ◽  
Rui Zhang Rui Zhang ◽  
Hao F. Zhang Hao F. Zhang
Keyword(s):  
Vascular Imaging

scholarly journals Synthesis and Biological Evaluation of Genistein-IR783 Conjugate: Cancer Cell Targeted Delivery in MCF-7 for Superior Anti-Cancer Therapy

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4120 ◽  
Author(s):  
Yang Guan ◽  
Yi Zhang ◽  
Juan Zou ◽  
Li-Ping Huang ◽  
Mahendra D. Chordia ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Therapy ◽  
Natural Product ◽  
Cancer Cell ◽  
Biological Evaluation ◽  
Cyanine Dye ◽  
Therapeutic Window ◽  
Anti Cancer ◽  
Mcf 7

The flavonoid-based natural product genistein is a biologically active compound possessing promising anti-oxidant and anti-cancer properties. Poor pharmacokinetics along with low potency limit however the therapeutic application of genistein in cancer therapy. In order to overcome those limitations and to expand its therapeutic window of efficacy, we sought to covalently attach genistein with a heptamethine cyanine dye—IR 783—for cancer cell targeting and enhanced delivery to tumors. Herein we report the synthesis, a selective detailed characterization and preliminary in vitro/in vivo biological evaluation of genistein-IR 783 conjugate 4. The conjugate 4 displayed improved potency against human breast cancer MCF-7 cells (10.4 ± 1.0 μM) as compared with the parent genistein (24.8 ± 0.5 μM) or IR 783 (25.7 ± 0.7 μM) and exhibited selective high uptake in MCF-7 as against the normal mammary gland MCF-10A cells in various assays. In the cell viability assay, conjugate 4 exhibited over threefold lower potency against MCF-10A cells (32.1 ± 1.1 μM) suggesting that the anti-cancer profile of parent genistein is significantly improved upon conjugation with the dye IR783. Furthermore, the genistein-IR783 conjugate 4 was shown to be especially accumulated in MCF-7 cancer cells by fluorescent intensity measurements and inverted fluorescence microscopy in fixed cells as well as in live cells with time via live cell confocal fluorescence imaging. The mechanism-based uptake inhibition of conjugate 4 was observed with OATPs inhibitor BSP and in part with amiloride, as a macropinocytosis inhibitor. For the first time we have shown amiloride inhibited uptake of cyanine dye by about ~40%. Finally, genistein-IR 783 conjugate 4 was shown to be localized in MCF-7 tumor xenografts of mice breast cancer model via in vivo near infrared fluorescence (NIRF) imaging. In conclusion, conjugation of genistein with cyanine dye IR783 indeed improved its pharmacological profile by cancer cell selective uptake and targeting and therefore warrants further investigations as a new anti-cancer therapeutics derived from natural product genistein.

Real-time monitoring and accurate diagnosis of drug-induced hepatotoxicity in vivo by ratio-fluorescence and photoacoustic imaging of peroxynitrite

Nanoscale ◽  
2020 ◽  
Vol 12 (18) ◽  
pp. 10216-10225 ◽  
Author(s):  
Hongjun Zhuang ◽  
Benhao Li ◽  
Mengyao Zhao ◽  
Peng Wei ◽  
Wei Yuan ◽  
...  
Keyword(s):  
Real Time ◽  
Photoacoustic Imaging ◽  
Accurate Diagnosis ◽  
Cyanine Dye ◽  
Upconversion Nanoparticles ◽  
Real Time Monitoring ◽  
Drug Induced ◽  
Monitoring Drug

Cyanine dye-coordinated upconversion nanoparticles were developed for real-time monitoring drug-induced hepatotoxicity in vivo by ratio-fluorescence and photoacoustic imaging of peroxynitrite.

scholarly journals Ultrabright red AIEgens for two-photon vascular imaging with high resolution and deep penetration

2018 ◽  
Vol 9 (10) ◽  
pp. 2705-2710 ◽  
Author(s):  
Wei Qin ◽  
Pengfei Zhang ◽  
Hui Li ◽  
Jacky W. Y. Lam ◽  
Yuanjing Cai ◽  
...  
Keyword(s):  
High Resolution ◽  
Vascular Imaging ◽  
Tissue Imaging ◽  
Deep Penetration ◽  
High Contrast ◽  
Deep Tissue ◽  
Two Photon ◽  
High Penetration ◽  
Deep Tissue Imaging

A successful strategy for the design of ultrabright red luminogens with aggregation-induced emission (AIE) features is reported. The AIE dots can be utilized as efficient fluorescent probes for in vivo deep-tissue imaging with high penetration depth and high contrast.

Sign in / Sign up

Export Citation Format

Share Document