Near-Infrared Photoluminescent Ag<sub>2</sub>S Quantum Dots from a Single Source Precursor

Du, Yaping; Xu, Bing; Fu, Tao; Cai, Miao; Li, Feng; Zhang, Yan; Wang, Qiangbin

doi:10.1021/ja909490r

Cited by 608 publications

(459 citation statements)

References 19 publications

Supporting

Mentioning

435

Contrasting

Unclassified

Order By: Relevance

“…Likewise, NIR and SWIR bioimaging benefit NPs, which can interact efficiently with these wavelengths. [10][11][12] In the following, some important parameters and relevant examples with regard to EM-active NPs will be discussed. The definitions of NPs and nanomaterials are relatively broad, and thus, to simplify, this review will focus on (1) colloidal NPs based on inorganic materials and (2) some relevant bioapplications with regard to the interaction of NPs with EM fields, i.e., bioapplications based on EM-active NPs.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Pino¹

2014

J. Biomed. Opt

View full text Add to dashboard Cite

Abstract. Continuous advances in the field of bionanotechnology, particularly in the areas of synthesis and functionalization of colloidal inorganic nanoparticles with novel physicochemical properties, allow the development of innovative and/or enhanced approaches for medical solutions. Many of the present and future applications of bionanotechnology rely on the ability of nanoparticles to efficiently interact with electromagnetic (EM) fields and subsequently to produce a response via scattering or absorption of the interacting field. The crosssections of nanoparticles are typically orders of magnitude larger than organic molecules, which provide the means for manipulating EM fields and, thereby, enable applications in therapy (e.g., photothermal therapy, hyperthermia, drug release, etc.), sensing (e.g., surface plasmon resonance, surface-enhanced Raman, energy transfer, etc.), and imaging (e.g., magnetic resonance, optoacoustic, photothermal, etc.). Herein, an overview of the most relevant parameters and promising applications of EM-active nanoparticles for applications in life science are discussed with a view toward tailoring the interaction of nanoparticles with EM fields. © The Authors.Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

Section: Introductionmentioning

confidence: 99%

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Pino¹

2014

J. Biomed. Opt

View full text Add to dashboard Cite

show abstract

“…Different types of core/shell QDs (CdSe/ZnS, CdTe/ZnS, and CdTe/ ZnSe), core/shell/shell QDs (CdTe/CdS/ZnS and CdSe/ CdTe/ZnSe), and environmentally friendly QDs (CuInSe, Ag 2 S, and Si) have been synthesized for various purposes. [19][20][21][22][23][24][25][26][27][28] In our previous study, we reported that CdTe/ZnSe core/shell QDs can be applied for in vitro imaging of chicken tissue and embryo. 29 The biological applications of QDs can be hampered by their inherently low solubility in water.…”

Section: Introductionmentioning

confidence: 99%

Using CdTe/ZnSe core/shell quantum dots to detect DNA and damage to DNA

Moulick

Milosavljević

Vlachova

et al. 2017

IJN

View full text Add to dashboard Cite

CdTe/ZnSe core/shell quantum dot (QD), one of the strongest and most highly luminescent nanoparticles, was directly synthesized in an aqueous medium to study its individual interactions with important nucleobases (adenine, guanine, cytosine, and thymine) in detail. The results obtained from the optical analyses indicated that the interactions of the QDs with different nucleobases were different, which reflected in different fluorescent emission maxima and intensities. The difference in the interaction was found due to the different chemical behavior and different sizes of the formed nanoconjugates. An electrochemical study also confirmed that the purines and pyrimidines show different interactions with the core/shell QDs. Based on these phenomena, a novel QD-based method is developed to detect the presence of the DNA, damage to DNA, and mutation. The QDs were successfully applied very easily to detect any change in the sequence (mutation) of DNA. The QDs also showed their ability to detect DNAs directly from the extracts of human cancer (PC3) and normal (PNT1A) cells (detection limit of 500 pM of DNA), which indicates the possibilities to use this easy assay technique to confirm the presence of living organisms in extreme environments.

show abstract

“…As a result, NIR-II fluorescence imaging can allow deep penetration into biological tissues with excellent imaging fidelity, sensitivity and resolution. [5][6][7] Over the past few years, considerable efforts have been devoted to develop high-quality NIR-II emitters including single-walled carbon nanotubes (SWNTs), [8][9][10] quantum dots (QDs), [11][12][13][14][15][16][17] rare-earth-doped nanoparticles (NPs), [18][19][20] and polymeric fluorophores. 21,22 Among them, the no toxic heavy metal-containing Ag2S QDs have become one of the most intensively studied NIR-II emitters.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of β-lactoglobulin capped Ag₂S quantum dots for in vivo imaging in the second near-infrared biological window

et al. 2016

View full text Add to dashboard Cite

Effective in vivo fluorescence imaging for cancer screening and diagnostics requires bright and biocompatible fluorophores whose emission can effectively penetrate biological tissues. Recent studies have confirmed that the second near-infrared window (NIR-II, 1,000-1,400 nm) is the most sensitive spectral range for in vivo imaging due to ultralow tissue absorption and autofluorescence. We report herein a facile synthesis of Ag2S QD LG T LG biodistribution and reduces in vivoQDs exhibit superior photostablity and biocompatibility, making them a promising probe for in vivo NIR-II imaging.

show abstract

Near-Infrared Photoluminescent Ag₂S Quantum Dots from a Single Source Precursor

Abstract: Monodisperse Ag(2)S quantum dots (QDs) were synthesized via pyrolysis of Ag(DDTC) in oleic acid, octadecylamine, and 1-octadecene. The uniform alkyl-capped Ag(2)S QDs with a size of 10.2 nm emit near-IR emission at 1058 nm under 785 nm excitation.

Cited by 608 publications

References 19 publications

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Using CdTe/ZnSe core/shell quantum dots to detect DNA and damage to DNA

Facile synthesis of β-lactoglobulin capped Ag₂S quantum dots for in vivo imaging in the second near-infrared biological window

Contact Info

Product

Resources

About

Near-Infrared Photoluminescent Ag2S Quantum Dots from a Single Source Precursor

Abstract: Monodisperse Ag(2)S quantum dots (QDs) were synthesized via pyrolysis of Ag(DDTC) in oleic acid, octadecylamine, and 1-octadecene. The uniform alkyl-capped Ag(2)S QDs with a size of 10.2 nm emit near-IR emission at 1058 nm under 785 nm excitation.

Cited by 608 publications

References 19 publications

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Using CdTe/ZnSe core/shell quantum dots to detect DNA and damage to DNA

Facile synthesis of β-lactoglobulin capped Ag2S quantum dots for in vivo imaging in the second near-infrared biological window

Contact Info

Product

Resources

About

Near-Infrared Photoluminescent Ag₂S Quantum Dots from a Single Source Precursor

Facile synthesis of β-lactoglobulin capped Ag₂S quantum dots for in vivo imaging in the second near-infrared biological window