In Situ Synthesis of Dicarboxylic Acid Functionalized Upconversion Nanoparticles for Bioimaging Applications

Wang, Meifeng; Zhang, Tao; Hu, Yongjun; Qin, Yiru; Wei, Wei

doi:10.1002/cptc.201800180

Cited by 8 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are many modified methods of molecular bioimaging systems such as MRI, optical imaging, ultrasound imaging, positron emission tomography, and many others. These have been adapted for in vitro and in vivo biological treatment (Chen et al, 2018;Ferenz and Zhang, 2018;Pratiwi et al, 2019;Wang M. et al, 2019). In the study of metallic nanoparticles, an upgraded bioimaging technology such as MRI and optical imaging has been introduced.…”

Section: Bioimaging Applicationmentioning

confidence: 99%

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

et al. 2020

View full text Add to dashboard Cite

Nanoparticles (nanoparticles) have received much attention in biological application because of their unique physicochemical properties. The metal-and metal oxide-supported nanomaterials have shown significant therapeutic effect in medical science. The mechanisms related to the interaction of nanoparticles with animal and plant cells can be used to establish its significant role and to improve their activity in health and medical applications. Various attempts have been made to discuss the antibiotic resistance and antimicrobial activity of metal-supported nanoparticles. Despite all these developments, there is still a need to investigate their performance to overcome modern challenges. In this regard, the present review examines the role of various types of metal-supported nanomaterials in different areas such as antibacterial, antifungal, anticancer, and so on. Based on the significant ongoing research and applications, it is expected that metal-supported nanomaterials play an outstanding role not only in medical but also in other important areas.

show abstract

Section: Bioimaging Applicationmentioning

confidence: 99%

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…As-synthesized silver nanoparticles either capped with hydrophilic ligands or carboxylic acids have also been reported to detect Hg+ at ppm levels [ 33 , 41 ]. The nanoparticles with different carboxylic acids on their surface have been characterized previously, where the NPs capped with adipic acid were comparatively more uniform and mono-disperse, hence suitable for biological applications [ 42 ]. Our research goal was to prepare AgNPs capped with adipic acid (AgNPs@AA).…”

Section: Introductionmentioning

confidence: 99%

Novel Carboxylic Acid-Capped Silver Nanoparticles as Antimicrobial and Colorimetric Sensing Agents

et al. 2022

View full text Add to dashboard Cite

The present work reports the synthesis, characterization, and antimicrobial activities of adipic acid-capped silver nanoparticles (AgNPs@AA) and their utilization for selective detection of Hg2+ ions in an aqueous solution. The AgNPs were synthesized by the reduction of Ag+ ions with NaBH4 followed by capping with adipic acid. Characterization of as-synthesized AgNPs@AA was carried out by different techniques, including UV–Visible spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Dynamic Light Scattering (DLS), and zeta potential (ZP). In the UV–Vis absorption spectrum, the characteristic absorption band for AgNPs was observed at 404 nm. The hydrodynamic size of as-synthesized AgNPs was found to be 30 ± 5.0 nm. ZP values (−35.5 ± 2.4 mV) showed that NPs possessed a negative charge due to carboxylate ions and were electrostatically stabilized. The AgNPs show potential antimicrobial activity against clinically isolated pathogens. These AgNPs were found to be selectively interacting with Hg2+ in an aqueous solution at various concentrations. A calibration curve was constructed by plotting concentration as abscissa and absorbance ratio (AControl − AHg/AControl) as ordinate. The linear range and limit of detection (LOD) of Hg2+ were 0.6–1.6 μM and 0.12 μM, respectively. A rapid response time of 4 min was found for the detection of Hg2+ by the nano-probe. The effect of pH and temperature on the detection of Hg2+ was also investigated. The nano-probe was successfully applied for the detection of Hg2+ from tap and river water

show abstract

“…Spectrally shifting, upconverting nanoparticles (UCNPs), based on NaYF 4 that show photoluminescence (PL) in the ultraviolet (UV), visible, and near-infrared (NIR) regions, have drawn considerable attention due to their potential for applications in photocatalysis, [1] bioimaging and sensing, [2][3][4][5][6] non-invasive luminescence thermometry, [7,8] drug delivery, [9][10][11] extending the absorption range of solar energy devices, [12][13][14][15] and use in other optical devices. [16][17][18] During upconversion with Yb 3+ and Er 3+ doped NaYF 4 UCNPs, the sensitizer ions (Yb 3+ ) absorb NIR photons and transfer the energy of two or more photons to an activator ion (Er 3+ ).…”

Section: Introductionmentioning

confidence: 99%

Quantification of the Activator and Sensitizer Ion Distributions in NaYF₄:Yb³⁺, Er³⁺ Upconverting Nanoparticles Via Depth‐Profiling with Tender X‐Ray Photoemission

Clark

Andresen

Sear

et al. 2022

Small

View full text Add to dashboard Cite

The spatial distribution and concentration of lanthanide activator and sensitizer dopant ions are of key importance for the luminescence color and efficiency of upconverting nanoparticles (UCNPs). Quantifying dopant ion distributions and intermixing, and correlating them with synthesis methods require suitable analytical techniques. Here, X‐ray photoelectron spectroscopy depth‐profiling with tender X‐rays (2000–6000 eV), providing probe depths ideally matched to UCNP sizes, is used to measure the depth‐dependent concentration ratios of Er3+ to Yb3+, [Er3+]/[Yb3+], in three types of UCNPs prepared using different reagents and synthesis methods. This is combined with data simulations and inductively coupled plasma‐optical emission spectroscopy (ICP‐OES) measurements of the lanthanide ion concentrations to construct models of the UCNPs’ dopant ion distributions. The UCNP sizes and architectures are chosen to demonstrate the potential of this approach. Core‐only UCNPs synthesized with XCl3·6H2O precursors (β‐phase) exhibit a homogeneous distribution of lanthanide ions, but a slightly surface‐enhanced [Er3+]/[Yb3+] is observed for UCNPs prepared with trifluroacetate precursors (α‐phase). Examination of Yb‐core@Er‐shell UCNPs reveals a co‐doped, intermixed region between the single‐doped core and shell. The impact of these different dopant ion distributions on the UCNP's optical properties is discussed to highlight their importance for UCNP functionality and the design of efficient UCNPs.

show abstract

In Situ Synthesis of Dicarboxylic Acid Functionalized Upconversion Nanoparticles for Bioimaging Applications

Cited by 8 publications

References 27 publications

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

Novel Carboxylic Acid-Capped Silver Nanoparticles as Antimicrobial and Colorimetric Sensing Agents

Quantification of the Activator and Sensitizer Ion Distributions in NaYF₄:Yb³⁺, Er³⁺ Upconverting Nanoparticles Via Depth‐Profiling with Tender X‐Ray Photoemission

Contact Info

Product

Resources

About

In Situ Synthesis of Dicarboxylic Acid Functionalized Upconversion Nanoparticles for Bioimaging Applications

Cited by 8 publications

References 27 publications

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

Recent Advances in Metal Decorated Nanomaterials and Their Various Biological Applications: A Review

Novel Carboxylic Acid-Capped Silver Nanoparticles as Antimicrobial and Colorimetric Sensing Agents

Quantification of the Activator and Sensitizer Ion Distributions in NaYF4:Yb3+, Er3+ Upconverting Nanoparticles Via Depth‐Profiling with Tender X‐Ray Photoemission

Contact Info

Product

Resources

About

Quantification of the Activator and Sensitizer Ion Distributions in NaYF₄:Yb³⁺, Er³⁺ Upconverting Nanoparticles Via Depth‐Profiling with Tender X‐Ray Photoemission