808 nm Near‐Infrared Light‐Triggered Payload Release from Green Light‐Responsive Donor‐Acceptor Stenhouse Adducts Polymer Coated Upconversion Nanoparticles

2021 ◽  
pp. 2100318
Author(s):  
Jianxun Lin ◽  
Hao Ma ◽  
Zhonghui Wang ◽  
Shenglin Zhou ◽  
Bin Yan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Green Light ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Donor Acceptor

scholarly journals Noninvasive Photochemical Sealing for Achilles Tendon Rupture by Combination of Upconversion Nanoparticles and Photochemical Tissue Bonding Technology

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Yiming Zhu ◽  
Aiguo Xie ◽  
Ming Li ◽  
Chihao Zhang ◽  
Tao Ni
Keyword(s):  
Achilles Tendon ◽  
Near Infrared ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Tendon Repair ◽  
Green Light ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Achilles Tendon Repair

Photochemical tissue bonding (PTB), based on photosensitizer rose bengal (RB) and green light, has been regarded as an effective alternative to surgical suture and has been reported to provide benefits for Achilles tendon repair. Limited to the poor penetration of green light, secondary damage still exists while applying PTB for closed Achilles tendon rupture. This study is aimed at exploring the effects of noninvasive photochemical sealing on Achilles tendon rupture by the combination of PTB and upconversion nanoparticles (UCNPs). The rare-earth UCNPs of NaYF4 : Yb/Er (Y:Yb:Er=78:20:2) were fabricated and then loaded into Chitosan/β-GP hydrogel containing RB to prepare UCNPs@RB/Chitosan/β-GP hydrogel. The properties of UCNPs and UCNP/Chitosan/β-GP hydrogel were characterized by TEM, SEM, DLS, and FTIR analysis. The effects of UCNP and PTB combination were evaluated in an Achilles tendon rupture rat model using histological analysis. Bioluminescence imaging of ROS was performed to explore the potential mechanism. UCNPs had a uniform shape with a diameter of 29.7±2.6 nm. The UCNPs@RB/Chitosan/β-GP hydrogel could upconvert the near-infrared light into green light. The results of histological assessment showed that compared with traditional suture repair, the rats injected with UCNPs@RB/Chitosan/β-GP hydrogel followed by irradiating with near-infrared light and the rats treated with RB solution followed by irradiating with green light had better effects on Achilles tendon repair. The benefits might be related to the generation of ROS in the PTB process. These findings indicated that the combination of PTB and UCNPs@RB/Chitosan/β-GP hydrogel could be used as a noninvasive photochemical sealing for Achilles tendon rupture.

A small bandgap (3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo[1,2-b:4,5-b′]difuran-2,6(3H,7H)-dione (IBDF) based polymer semiconductor for near-infrared organic phototransistors

2017 ◽  
Vol 5 (46) ◽  
pp. 12163-12171 ◽  
Author(s):  
Yinghui He ◽  
Jesse T. E. Quinn ◽  
Dongliang Hou ◽  
Jenner H.L. Ngai ◽  
Yuning Li
Keyword(s):  
Band Gap ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Polymer Semiconductor ◽  
Donor Acceptor ◽  
Small Band

A novel small bandgap donor–acceptor polymer with a very small band gap of 0.95 eV shows promising photoresponse under near infrared light in phototransistors.

DNA-mediated Construction of Hollow Upconversion Nanoparticles for Protein Harvesting and Near-Infrared Light Triggered Release

2013 ◽  
Vol 26 (15) ◽  
pp. 2424-2430 ◽  
Author(s):  
Li Zhou ◽  
Zhaowei Chen ◽  
Kai Dong ◽  
Meili Yin ◽  
Jinsong Ren ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Triggered Release ◽  
Near Infrared Light

Near-infrared light-triggered drug release from UV-responsive diblock copolymer-coated upconversion nanoparticles with high monodispersity

2018 ◽  
Vol 6 (21) ◽  
pp. 3531-3540 ◽  
Author(s):  
Jun Xiang ◽  
Xia Tong ◽  
Feng Shi ◽  
Qiang Yan ◽  
Bing Yu ◽  
...  
Keyword(s):  
Drug Release ◽  
Diblock Copolymer ◽  
Near Infrared ◽  
Controlled Drug Release ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Nir Light ◽  
Triggered Drug Release

The preparation of a new near-infrared (NIR) light-responsive nanocarrier for controlled drug release is demonstrated.

Donor–Acceptor Dihydropyrenes Switchable with Near-Infrared Light

2020 ◽  
Vol 142 (27) ◽  
pp. 11857-11864 ◽  
Author(s):  
Kristin Klaue ◽  
Wenjie Han ◽  
Pauline Liesfeld ◽  
Fabian Berger ◽  
Yves Garmshausen ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Donor Acceptor

Transferrin-coated magnetic upconversion nanoparticles for efficient photodynamic therapy with near-infrared irradiation and luminescence bioimaging

Nanoscale ◽  
2017 ◽  
Vol 9 (31) ◽  
pp. 11214-11221 ◽  
Author(s):  
Dan Wang ◽  
Lin Zhu ◽  
Yuan Pu ◽  
Jie-Xin Wang ◽  
Jian-Feng Chen ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Magnetic Force ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Infrared Irradiation ◽  
Near Infrared Light

A novel platform based on transferrin coated magnetic upconversion nanoparticles was developed for near-infrared light induced imaging and photodynamic therapy with enhanced efficiency by magnetic force.

Near-infrared light-controlled circularly polarized luminescence of self-organized emissive helical superstructures assisted by upconversion nanoparticles

2020 ◽  
Vol 56 (88) ◽  
pp. 13649-13652 ◽  
Author(s):  
Ao Juan ◽  
Hao Sun ◽  
Jinghui Qiao ◽  
Jinbao Guo
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Excitation Light ◽  
Circularly Polarized ◽  
Self Organized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
First Time

The reversible switching of circularly polarized luminescence in a self-organized emissive helical superstructure using 980 nm NIR excitation light with different power intensities is reported for the first time.

Near-infrared control and real-time detection of osteogenic differentiation in mesenchymal stem cells by multifunctional upconversion nanoparticles

Nanoscale ◽  
2020 ◽  
Vol 12 (18) ◽  
pp. 10106-10116 ◽  
Author(s):  
Kaipeng Wang ◽  
Qian Wu ◽  
Xichao Wang ◽  
Guohai Liang ◽  
Anli Yang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Osteogenic Differentiation ◽  
Real Time ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Regeneration Medicine ◽  
Real Time Detection

A multifuctional platform based on meseporous sillicon coated upconversion nanoparticles was developed for near-infrared light controlled and real-time detection of differentiation in mesenchymal stem cells for regeneration medicine.

scholarly journals Near-infrared light control of membrane potential by an electron donor–acceptor linked molecule

2020 ◽  
Vol 56 (83) ◽  
pp. 12562-12565
Author(s):  
Yuta Takano ◽  
Kazuaki Miyake ◽  
Jeladhara Sobhanan ◽  
Vasudevanpillai Biju ◽  
Nikolai V. Tkachenko ◽  
...  
Keyword(s):  
Membrane Potential ◽  
Excited States ◽  
Electron Donor ◽  
Near Infrared ◽  
Infrared Light ◽  
Light Control ◽  
Near Infrared Light ◽  
Donor Acceptor ◽  
Molecular Excited States

(π-Extended porphyrin)–fullerene linked molecules are synthesized to utilize the molecular excited states induced by near-infrared light. One of the molecules successfully alters the membrane potential.

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