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21 Results Found

  • Article
  • Open Access
12 Citations
6,720 Views
17 Pages

An Assessment of InP/ZnS as Potential Anti-Cancer Therapy: Quantum Dot Treatment Increases Apoptosis in HeLa Cells

  • Victoria Davenport,
  • Cullen Horstmann,
  • Rishi Patel,
  • Qihua Wu and
  • Kyoungtae Kim

20 January 2021

InP/ZnS quantum dots (QDs) are an emerging option in QD technologies for uses of fluorescent imaging as well as targeted drug and anticancer therapies based on their customizable properties. In this study we explored effects of InP/ZnS when treated w...

  • Article
  • Open Access
316 Views
19 Pages

Influence of InP/ZnS Quantum Dots on the Optical Properties of Thin Azo Polymer Films

  • Yordanka Trifonova,
  • Vladislava Ivanova,
  • Vanya Lilova,
  • Ani Stoilova and
  • Deyan Dimov

In this study, we determine the refractive index (n), extinction coefficient (k), absorption coefficient (α) and optical band gap (Eg) of thin films based on the commercially available azo polymer (poly [1-[4-(3-carboxy-4-hydroxyphenylazo) benz...

  • Article
  • Open Access
23 Citations
6,256 Views
11 Pages

Highly Bright Silica-Coated InP/ZnS Quantum Dot-Embedded Silica Nanoparticles as Biocompatible Nanoprobes

  • Kyeong-Min Ham,
  • Minhee Kim,
  • Sungje Bock,
  • Jaehi Kim and ,
  • Wooyeon Kim,
  • Heung Su Jung,
  • Jaehyun An,
  • Hobeom Song,
  • Jung-Won Kim and
  • Bong-Hyun Jun
  • + 10 authors+ 5 authors

19 September 2022

Quantum dots (QDs) have outstanding optical properties such as strong fluorescence, excellent photostability, broad absorption spectra, and narrow emission bands, which make them useful for bioimaging. However, cadmium (Cd)-based QDs, which have been...

(This article belongs to the Special Issue Advanced Optical Materials: From Materials to Applications)
  • Feature Paper
  • Article
  • Open Access
13 Citations
5,627 Views
24 Pages

Mixed Mercaptocarboxylic Acid Shells Provide Stable Dispersions of InPZnS/ZnSe/ZnS Multishell Quantum Dots in Aqueous Media

  • Benjamin Heyne,
  • Kristin Arlt,
  • André Geßner,
  • Alexander F. Richter and ,
  • Markus Döblinger,
  • Jochen Feldmann,
  • Andreas Taubert and
  • Armin Wedel
  • + 3 authors+ 0 author

17 September 2020

Highly luminescent indium phosphide zinc sulfide (InPZnS) quantum dots (QDs), with zinc selenide/zinc sulfide (ZnSe/ZnS) shells, were synthesized. The QDs were modified via a post-synthetic ligand exchange reaction with 3-mercaptopropionic acid (MPA)...

(This article belongs to the Special Issue Nanocrystals: Synthesis, Properties and Applications)
  • Article
  • Open Access
6 Citations
3,608 Views
15 Pages

22 January 2023

In this work, the effects of InP/ZnS quantum dots modified with amino or carboxyl group on the characteristic parameters in phase behavior, elastic modulus, relaxation time of the DPPC/DPPG mixed monolayers are studied by the Langmuir technology at t...

(This article belongs to the Section Materials Chemistry)
  • Feature Paper
  • Article
  • Open Access
5 Citations
4,382 Views
14 Pages

Nonlinear Optical Characterization of InP@ZnS Core-Shell Colloidal Quantum Dots Using 532 nm, 10 ns Pulses

  • Rashid A. Ganeev,
  • Andrey I. Zvyagin,
  • Ivan A. Shuklov,
  • Maksim G. Spirin and ,
  • Oleg V. Ovchinnikov and
  • Vladimir F. Razumov
  • + 1 author+ 0 author

InP@ZnS core-shell colloidal quantum dots (CQDs) were synthesized and characterized using the z-scan technique. The nonlinear refraction and nonlinear absorption coefficients (γ = −2 × 10−12 cm2 W−1, β = 4 × 10−8 cm W−1) of these CQDs were determined...

  • Article
  • Open Access
26 Citations
3,811 Views
17 Pages

Nephrotoxicity Evaluation of Indium Phosphide Quantum Dots with Different Surface Modifications in BALB/c Mice

  • Li Li,
  • Tingting Chen,
  • Zhiwen Yang,
  • Yajing Chen and ,
  • Dongmeng Liu,
  • Huiyu Xiao,
  • Maixian Liu,
  • Kan Liu,
  • Jiangyao Xu and
  • Gaixia Xu
  • + 8 authors+ 3 authors

27 September 2020

InP QDs have shown a great potential as cadmium-free QDs alternatives in biomedical applications. It is essential to understand the biological fate and toxicity of InP QDs. In this study, we investigated the in vivo renal toxicity of InP/ZnS QDs term...

(This article belongs to the Section Molecular Toxicology)
  • Article
  • Open Access
23 Citations
3,849 Views
18 Pages

25 June 2024

Fluorescent nanoparticles known as quantum dots (QDs) have unique properties that make them useful in biomedicine. Specifically, CdSe/ZnS QDs, while good at fluorescing, show toxicity. Due to this, safer alternatives have been developed. This study u...

(This article belongs to the Section Environmental Nanoscience and Nanotechnology)
  • Feature Paper
  • Article
  • Open Access
10 Citations
5,786 Views
8 Pages

InP quantum dots (QDs) are promising down-conversion phosphors for white light LEDs. However, the mainstream InP QDs synthesis uses expensive phosphorus source. Here, economic, in situ-generated PH3 is used to synthesize InP QDs and a two-step coatin...

(This article belongs to the Special Issue Advanced Luminescent Materials: Properties and Applications)
  • Article
  • Open Access
29 Citations
6,143 Views
13 Pages

An In Vitro Investigation of Cytotoxic Effects of InP/Zns Quantum Dots with Different Surface Chemistries

  • Deanna Ayupova,
  • Garima Dobhal,
  • Geoffry Laufersky,
  • Thomas Nann and
  • Renee V. Goreham

22 January 2019

Indium phosphide quantum dots (QDs) passivated with zinc sulphide in a core/shell architecture (InP/ZnS) with different surface chemistries were introduced to RAW 264.7 murine “macrophage-like” cells to understand their potential toxiciti...

  • Article
  • Open Access
20 Citations
3,149 Views
28 Pages

29 April 2022

The study of the interaction of engineered nanoparticles, including quantum dots (QDs), with cellular constituents and the kinetics of their localization and transport, has provided new insights into their biological consequences in cancers and for t...

(This article belongs to the Topic Microfluidics Applied in Nanomedicine and Pharmaceutics)
  • Article
  • Open Access
26 Citations
5,049 Views
14 Pages

In this work, we have simulated the processes of broadening the first exciton band in optical absorption spectra (OA) for InP/ZnS ensembles of colloidal quantum dots (QDs). A phenomenological model has been proposed that takes into account the effect...

  • Article
  • Open Access
11 Citations
2,848 Views
14 Pages

Encapsulation of InP/ZnS Quantum Dots into MOF-5 Matrices for Solid-State Luminescence: Ship in the Bottle and Bottle around the Ship Methodologies

  • Alexis Tran,
  • Rodolphe Valleix,
  • François Réveret,
  • Lawrence Frezet and ,
  • Federico Cisnetti and
  • Damien Boyer
  • + 1 author+ 0 author

27 June 2024

The utilization of InP-based quantum dots (QDs) as alternative luminescent nanoparticles to cadmium-based QDs is actively pursued. However, leveraging their luminescence for solid-state applications presents challenges due to the sensitivity of InP Q...

(This article belongs to the Section Optical and Photonic Materials)
  • Article
  • Open Access
7 Citations
8,282 Views
16 Pages

Hydrazine-Assisted Formation of Indium Phosphide (InP)-Based Nanowires and Core-Shell Composites

  • Greta R. Patzke,
  • Roman Kontic,
  • Zeinab Shiolashvili,
  • Nino Makhatadze and
  • David Jishiashvili

27 December 2012

Indium phosphide nanowires (InP NWs) are accessible at 440 °C from a novel vapor phase deposition approach from crystalline InP sources in hydrazine atmospheres containing 3 mol % H2O. Uniform zinc blende (ZB) InP NWs with diameters around 20 nm and...

  • Article
  • Open Access
16 Citations
4,008 Views
21 Pages

17 March 2021

The primary focus of our research was to obtain global gene expression data in baker’s yeast exposed to sub-lethal doses of quantum dots (QDs), such as green-emitting CdSe/ZnS and InP/ZnS, to reveal novel insights on their unique mechanisms of toxici...

(This article belongs to the Section Microbial Genetics and Genomics)
  • Article
  • Open Access
4 Citations
3,550 Views
24 Pages

19 March 2025

Controlling the stability of colloidal nanoparticles in multicomponent systems is crucial for advancing formulations and separation processes. This study investigates the selective agglomeration approach for binary colloidal mixtures, providing both...

(This article belongs to the Collection Multidimensional Particle Properties: Characterization, Description, Separation)
  • Article
  • Open Access
10 Citations
3,501 Views
12 Pages

11 November 2021

Detection of copper (II) ions (Cu2+) in water is important for preventing them from entering the human body to preserve human health. Here, a highly sensitive and selective fluorescence probe that uses mercaptopropionic acid (MPA)-capped InP/ZnS quan...

(This article belongs to the Special Issue Preparation of Novel Nanomaterial and Its Application in Food Industry)
  • Article
  • Open Access
9 Citations
3,981 Views
10 Pages

Ultrafast Charge Carrier Dynamics in InP/ZnSe/ZnS Core/Shell/Shell Quantum Dots

  • Shijia Zeng,
  • Zhenbo Li,
  • Wenjiang Tan,
  • Jinhai Si and ,
  • Yuren Li and
  • Xun Hou
  • + 1 author+ 0 author

28 October 2022

The excellent performance of InP/ZnSe/ZnS core/shell/shell quantum dots (CSS-QDs) in light-emitting diodes benefits from the introduction of a ZnSe midshell. Understanding the changes of ultrafast carrier dynamics caused by the ZnSe midshell is impor...

(This article belongs to the Section Physical Chemistry at Nanoscale)
  • Article
  • Open Access
25 Citations
7,378 Views
11 Pages

30 October 2020

The development of blue-emissive InP quantum dots (QDs) still lags behind that of the red and green QDs because of the difficulty in controlling the reactivity of the small InP core. In this study, the reaction kinetics of the ZnS shell was controlle...

(This article belongs to the Section Nanophotonics Materials and Devices)
  • Article
  • Open Access
12 Citations
3,711 Views
18 Pages

31 January 2023

Quantum dots (QDs) have attracted great attention as tools for theranostics that combine the possibility of simultaneous biological target visualization and medicine delivery. Here, we address whether core/shell InP/ZnS QDs (InP-QDs) may be an altern...

(This article belongs to the Special Issue Feature Papers in 'Physical Chemistry and Chemical Physics' 2023)
  • Article
  • Open Access
46 Citations
5,084 Views
15 Pages

Transferrin-Decorated Niosomes with Integrated InP/ZnS Quantum Dots and Magnetic Iron Oxide Nanoparticles: Dual Targeting and Imaging of Glioma

  • Didem Ag Seleci,
  • Viktor Maurer,
  • Firat Baris Barlas,
  • Julian Cedric Porsiel and ,
  • Bilal Temel,
  • Elcin Ceylan,
  • Suna Timur,
  • Frank Stahl,
  • Thomas Scheper and
  • Georg Garnweitner
  • + 5 authors+ 0 author

The development of multifunctional nanoscale systems that can mediate efficient tumor targeting, together with high cellular internalization, is crucial for the diagnosis of glioma. The combination of imaging agents into one platform provides dual im...

(This article belongs to the Section Materials Science)