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·The near infrared NIR region of the spectrum is called the therapeutic window because NIR light can penetrate deeply into tissue Therefore NIR sensitive materials are attractive for biomedical applications Recently upconverting nanoparticles UCNPs were used to construct NIR sensitive materials
·The FT IR spectra were measured by Fourier transform infrared spectrometer Nicolet FT IR ThermoScientific The XPS spectra were measured by XPS ThermoScientific K Alpha Synthesis of NaYF 4 Yb 3 Tm 3 NaYF 4 Core Shell Nanoparticles The NaYF 4 Yb 3 Tm 3 nanoparticles were prepared by solvothermal method as previously reported
·With a selenium Se substitution we synthesized two conjugated small molecules to promote their emission into the deep near infrared region with high quantum yields of 55% and 20% in THF solvent respectively and their water dispersive nanoparticles have relatively large absorption cross sections in the 1700 and 2200 nm windows respectively
·In vivo molecular imaging for immunotherapy using ultra bright near infrared IIb rare earth nanoparticles Nat Biotechnol 37 1322 1331 2019 Article Google Scholar
·Alkaline Phosphatase Triggered Self Assembly of Near Infrared Nanoparticles for the Enhanced Photoacoustic Imaging of Tumors Chengfan Wu Chengfan Wu Hefei National Laboratory of Physical Sciences at Microscale Department of Chemistry University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
·An integrated second near infrared Nir II 1000 1700 nm window in vivo imaging strategy based on 3D printed bioactive glass scaffolds doped with NIR II ratiometric lanthanide dye hybrid nanoprobes allowing for in situ monitoring of the early inflammation angiogenesis and implant degradation during mouse skull repair
·pH/near infrared light dual activated Ce6 doped silicon nanoparticles with tumor chemo photodynamic synergistic therapy for improving efficiency of monotherapy the nanoparticles could not only convert oxygen molecules into tumor killing 1 O 2 to realize effective photodynamic therapy in response to external NIR light through doped
·With the ever growing threat of bacterial infections especially for multidrug resistant microbial infections the development of highly effective treatment modalities to inhibit the infections is challenging Although silver nanoparticles have been intensively applied as antimicrobial agent for decades the therapeutic efficacy toward multidrug resistant bacteria is
·Lanthanide Doped Near Infrared Nanoparticles for Biophotonics Hui Li Hui Li MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering and Key Laboratory of Micro Systems and Micro Structures Ministry of Education and State Key Laboratory of Urban Water Resource
·Near infrared NIR responsive photothermal materials The nanoparticles were abundantly found on the cell surface Fig 1 a and b The XRD spectrum shows distinct peaks fitting well with the standard CuSe phase PDF#27 0185 Fig 1 c
·Powders of nanocrystalline metal oxides were compared with common macrocrystalline powders and minerals for their ability to reflect near infrared light NIR 750−2500 nm The nanocrystalline metal oxides were found to possess higher NIR reflectance values ∼15−20% and this can be attributed to their smaller crystallite sizes coupled with
·The photothermal effect of Fe 3 O 4 magnetic nanoparticles is investigated for cancer therapy both in vitro and in vivo experiments Heat is found to be rapidly generated by red and near infrared NIR range laser irradiation of Fe 3 O 4 nanoparticles with spherical hexagonal and wire like shapes These Fe 3 O 4 nanoparticles are coated with carboxyl terminated poly
·Near infrared photosensitization via direct triplet energy transfer from lanthanide nanoparticles Author links open overlay panel Bingzhu Zheng 1 5 Danni Zhong 2 5 Nd nanoparticles exhibited negligible accumulation to normal tissues such as brain muscle and bone at the therapeutic dose Taken together these results clearly suggest the
Near infrared II NIR II 1000 1700 nm bioimaging has been considered as one of the ideal bioimaging techniques in recent years due to its deep tissue penetration and low tissue fluorescence scattering Here we design the highly biocompatible lanthanide doped nanoparticles NaYF 4 Ce/Er NaYbF 4 Er NaYF 4 Nd ZnPc/RB/mPEG FA RENPs ZnPc/RB
Highly Stable Near Infrared Fluorescent Organic Nanoparticles with a Large Stokes Shift for Noninvasive Long Term Cellular Imaging / Zhang Jinfeng; Chen Rui; Zhu Zelin ACS applied materials & interfaces 7 47 26266 26274
·This system can exhibit enhanced near infrared NIR light photocatalysis and photothermy because CDs can convert NIR light into the light of 500 600 nm and transfer electrons which can inspire nano Au catalyzed TNTs to generate ROS and enhance the surface plasmon resonance SPR effect of Au nanoparticles to produce more local photothermy
Photothermal therapy PTT as a kind of noninvasive tumor treatment has attracted increasing research interest However the efficiency of existing PTT agents in the near infrared NIR region is the major problem that has hindered further development of PTT Herein we present an effective strategy to construct the efficient photothermal agent by utilizing an intramolecular
·In the present study a biomimetic nanoplatform was developed based on leukocyte/platelet hybrid membrane LPHM and dendritic large pore mesoporous silicon nanoparticles DLMSNs A near infrared NIR fluorescent dye IR780 and a chemotherapeutic drug doxorubicin DOX were co loaded into the large pores of DLMSNs to prepare
·In this review we provide an at a glance overview of the most recent developments in near infrared nanoparticles that could have far reaching applications in the life sciences We focus on materials that offer additional functionalities besides diagnosis based on optical contrast multiple imaging modalities multimodal imaging sensing of
·Near infrared optical imaging offers some advantages over conventional imaging such as deeper tissue penetration low or no autofluorescence and reduced tissue scattering Lanthanide doped nanoparticles LnNPs have become a trend in the field of photoactive nanomaterials for optical imaging due to their unique optical features and because
·Here we report a novel assembly structure of near infrared plasmonic gold nanoparticles AuNPs possessing both photoacoustic PA and photothermal PT properties The template for the plasmonic
·Multifunctional nanoplatforms with multimodal imaging and cancer therapy capabilities have attracted attention in biomedical applications Near infrared persistent luminescence nanoparticles NPLNPs were considered one of the most promising candidates for constructing multifunctional nanoplatforms due to the absence of in situ excitation and high
·In 2019 Li et al reported an advanced type of core shell nanoparticles with emission 10 times stronger than NaNdF 4 nanoparticles at 1340 nm after being coated with insert layer NaLuF 4 and sensitized by a near infrared dye IR 808 UCNPs/IR 808 DSPE PEG5000 Fig 8 a [87] The drug was delivered to the mouse brain by temporarily opening
