Near‐Infrared Photoluminescent Polymer–Carbon Nanodots with Two‐Photon Fluorescence

Lu, Siyu; Sui, Laizhi; Liu, Junjun; Zhu, Shoujun; Chen, Anmin; Mu, Jin; Yang, Bai

doi:10.1002/adma.201603443

Cited by 713 publications

(465 citation statements)

References 40 publications

Supporting

Mentioning

454

Contrasting

Unclassified

Order By: Relevance

“…The fitted lifetimes are almost the same as the lifetimes at 2 µJ, being 3.21 ± 0.05 ps, 119.5 ± 0.8 ps, and 3.14 ± 0.05 ns. [12] The emission spectra of these devices (Figure 5d) show emissions ranging from 350 to 750 nm from the white-emissive PDMS/Ti 3 C 2 MQDs phosphors. The DADS of both regions are summed to analyze the variation in the proportion of the three components in the decay dynamics with different excitation energies (Figure 3i).…”

Section: Resultsmentioning

confidence: 99%

“…

and/or N. [1][2][3][4][5][6][7][8] MXenes possess both metallic conductivity and hydrophilicity, and their surfaces are terminated with hydrophilic groups that provide intercalation or surface redox capacitances with high conductivity (2400 S cm −1 , comparable to multilayer graphene). [8][9][10][11][12][13][14][15][16][17] In addition, Ti 3 C 2 MXene exhibited a high antibacterial efficiency, with growth inhibition of 97.70% for Escherichia coli, and ultrathin MXene-based fieldeffect transistors with high biocompatibility could be utilized to perform highly sensitive label-free detection of dopamine, revealing that MXenes could serve as novel nanomaterials with great potential in environmental and biomedical applications. [8][9][10][11][12][13][14][15][16][17] In addition, Ti 3 C 2 MXene exhibited a high antibacterial efficiency, with growth inhibition of 97.70% for Escherichia coli, and ultrathin MXene-based fieldeffect transistors with high biocompatibility could be utilized to perform highly sensitive label-free detection of dopamine, revealing that MXenes could serve as novel nanomaterials with great potential in environmental and biomedical applications.

…”

mentioning

confidence: 99%

“…[8][9][10][11][12][13][14][15][16][17] In addition, Ti 3 C 2 MXene exhibited a high antibacterial efficiency, with growth inhibition of 97.70% for Escherichia coli, and ultrathin MXene-based fieldeffect transistors with high biocompatibility could be utilized to perform highly sensitive label-free detection of dopamine, revealing that MXenes could serve as novel nanomaterials with great potential in environmental and biomedical applications. Carbon dots, [12] MoS 2 nanodots, g-C 3 N 4 nanodots, and BN nanodots of less than 10 nm in size have shown different physical and chemical properties from their bulk materials due to the combination of quantum confinement, A recently created class of inorganic 2D materials, MXenes, has become a subject of intensive research. Carbon dots, [12] MoS 2 nanodots, g-C 3 N 4 nanodots, and BN nanodots of less than 10 nm in size have shown different physical and chemical properties from their bulk materials due to the combination of quantum confinement, A recently created class of inorganic 2D materials, MXenes, has become a subject of intensive research.…”

mentioning

confidence: 99%

See 2 more Smart Citations

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence

et al. 2019

Self Cite

View full text Add to dashboard Cite

A recently created class of inorganic 2D materials, MXenes, has become a subject of intensive research. Reducing their dimensionality from 2D to 0D quantum dots (QDs) could result in extremely useful properties and functions. However, this type of research is scarce, and the reported Ti 3 C 2 MXene QDs (MQDs) have only shown blue fluorescence emission. This work demonstrates a facile, high‐output method for preparing bright white emitting Ti 3 C 2 MQDs. The resulting product is two layers thick with a lateral dimension of 13.1 nm. Importantly, the as prepared Ti 3 C 2 MQDs present strong two‐photon white fluorescence. Their fluorescence under high pressure is also investigated and it is found that the white emission is very stable and the pressure makes it possible to change from cool white emission to warm white emission. Hybrid nanocomposites are then fabricated by polymerizing Ti 3 C 2 MQDs in polydimethylsiloxane (PDMS) solution, and the bright white emitting hybrid materials in white light‐emitting diodes are used. This work provides a facile and general approach to modulate various nanoscale MXene materials, and could further aid the wide development of applications for MXene materials in various optical‐related fields.

show abstract

Section: Resultsmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…[148] Dopamine and o-phenylenediamine were selected as carbon precursors due to their molecular structures which favored the generation of large conjugated sp 2 structure. [148] Copyright 2017, Wiley-VCH. The cross-linked polymer chains were the dominant structure which contributed to emission in NIR wavelength.…”

Section: Bioimagingmentioning

confidence: 99%

Advanced Near‐Infrared Light‐Responsive Nanomaterials as Therapeutic Platforms for Cancer Therapy

Chien

Chan

Anderson

et al. 2018

Advanced Therapeutics

View full text Add to dashboard Cite

Cancer is one of the leading causes of death. Despite the huge progress in the field of cancer drugs and therapies, the treatment outcome is still bleak for most cancer patients. Nanotechnology has revolutionized cancer therapeutics. By using nano-sized particles as delivery systems, therapeutic biomolecules are transported efficiently to the target sites. Moreover, these particles are designed to carry out multiple cancer treatments simultaneously. Near-infrared (NIR) light-responsive nanomaterials have gained much attention as NIR light has a greater penetration depth, minimal phototoxicity, lower autofluorescence, and reduced light scattering. Among the available NIR light-responsive nanomaterials, gold nanorods, upconversion nanoparticles, carbon dots, transition metal dichalcogenide, metal oxides, black phosphorus, and polymeric nanomaterials have become attractive options owing to their excellent optical properties, ease of synthesis and modification, outstanding photodynamic and photothermal conversion properties, and most importantly, favorable toxicity level and biocompatibility which are prerequisites for biological applications. In this review, the outstanding properties, synthesis, and surface functionalization of the aforementioned NIR light-responsive nanomaterials are introduced in detail. Recent advances of these nanomaterials for various cancer treatment modalities are summarized to highlight their versatility and potential in cancer theranostics. Finally, a perspective is proposed on future research directions and their clinical translation.

show abstract

“…[39,40] Herein, we constructed GQDs from an active molecular precursor, 1,5-diaminonaphthalene (DAN), by one-step molecule fusion under solvothermal conditions (Figure 1a). [39,40] Herein, we constructed GQDs from an active molecular precursor, 1,5-diaminonaphthalene (DAN), by one-step molecule fusion under solvothermal conditions (Figure 1a).…”

mentioning

confidence: 99%

Amphiphilic Graphene Quantum Dots as Self‐Targeted Fluorescence Probes for Cell Nucleus Imaging

Wang

et al. 2018

Adv. Biosys.

View full text Add to dashboard Cite

peptides. [6,8,12] However, these nucleustargeted fluorescent probes show some unsatisfactory properties, [2][3][4]9,14,15] as high toxicity, poor photostability, high cost, and functionalization complexity associated with the use of expensive targeting agents and so on. Therefore, it is essential to develop novel fluorescent probes with low cytotoxicity, good photostability, and low cost for nucleus imaging.Recently, highly fluorescent graphene quantum dots (GQDs) have exhibited excellent bioimaging capabilities owing to superior optical properties (tunable and stable fluorescence emission), low toxicity, and unique surface characteristics. [16][17][18][19][20][21][22][23][24][25][26][27] Despite some researches have reported the nuclear-targeted ability of GQDs and carbon dots, [28][29][30][31][32][33][34][35][36][37] there are still some shortages. (1) To target the nucleus for cell nucleus imaging effectively, GQDs were functionalized by conventional conjugation approaches using expensive nuclear-localization peptides as the targeting agent, which increases the fabrication cost and complexity. [28,30,31,33,[35][36][37] (2) Nucleus-targeted GQDs were usually internalized in both cytoplasm and nucleus, exhibiting low nuclear targeting ability. [28,30,32,34,37] (3) The nuclear architectures like the nuclear envelope and nucleoli were not resolvable owing to weak interactions between functionalized GQDs and these architectures. [28][29][30][31][32][33][34] Therefore, it is urgent to design the high-quality GQDs for cell nuclear self-targeting imaging by means of synthesizing at a molecularly precise level, which promotes the exploration of their basic biological behaviors and biomedical applications.Herein, a one-step solvothermal strategy to synthesize amphiphilic, highly fluorescent graphene quantum dots (GQDs) as nucleus-targeted fluorescence probes is reported. The edge-functionalization of GQDs with N and Cl ligands renders them amphiphilic and positive charged for boosting membrane crossing and histone binding in the nuclei. The fluorescent properties of the GQDs can be markedly enhanced by Cl doping, and thus their fluorescence quantum yield is raised to 30% under optimized Cl doping. The self-targeted GQDs exhibit multicolor cell imaging capability for visualization of fine architectures of the nucleus such as the nuclear envelope and nucleoli, which can be associated with their distinct surface features like amphiphilicity and high positive charge. These findings serve as a simple nuclear targeting strategy for cancer diagnosis and therapy. Cell ImagingThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

show abstract

Near‐Infrared Photoluminescent Polymer–Carbon Nanodots with Two‐Photon Fluorescence

Cited by 713 publications

References 40 publications

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence

Advanced Near‐Infrared Light‐Responsive Nanomaterials as Therapeutic Platforms for Cancer Therapy

Amphiphilic Graphene Quantum Dots as Self‐Targeted Fluorescence Probes for Cell Nucleus Imaging

Contact Info

Product

Resources

About

Near‐Infrared Photoluminescent Polymer–Carbon Nanodots with Two‐Photon Fluorescence

Cited by 713 publications

References 40 publications

White Photoluminescent Ti3C2 MXene Quantum Dots with Two‐Photon Fluorescence

White Photoluminescent Ti3C2 MXene Quantum Dots with Two‐Photon Fluorescence

Advanced Near‐Infrared Light‐Responsive Nanomaterials as Therapeutic Platforms for Cancer Therapy

Amphiphilic Graphene Quantum Dots as Self‐Targeted Fluorescence Probes for Cell Nucleus Imaging

Contact Info

Product

Resources

About

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence

White Photoluminescent Ti₃C₂ MXene Quantum Dots with Two‐Photon Fluorescence