Surface-engineered gadolinium oxide nanorods and nanocuboids for bioimaging

Chawda, Nitya; Mahapatra, S. K.; Banerjee, Indrani

doi:10.1007/s12598-020-01378-5

Cited by 8 publications

(6 citation statements)

References 46 publications

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“…The broad peak bands that appeared at 3100–3600 cm –1 correspond to the stretching vibrations of the O–H adsorbed water molecules. Other two peaks that appeared at 693 and 665 cm –1 are attributed to the symmetric and asymmetric stretching vibrations of COO – . Also, the sharp intense band that appeared at 461 cm –1 is ascribed to the Gd–O–H vibration stretch of GdO.…”

Section: Resultsmentioning

confidence: 91%

Gadolinium Oxide Nanorods Anchored on g-C3N4 Nanosheets for Dual-Mode Electrochemical Determination of Clioquinol in Real-Time Analysis

Sharma

Ganguly

Santhan

et al. 2022

ACS Appl. Nano Mater.

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We present an inexpensive fabrication method in preparing one-dimensional gadolinium oxide (GdO) nanorods through hydrothermal synthesis and graphitic carbon nitride–g-C3N4, by a rapid calcination process. X-ray diffraction (XRD) patterns of GdO nanorods displayed a cubic crystal phase with an average crystalline size of 5–6.2 nm. Through high-resolution transmission electron microscopy micrographs, GdO exhibited a diameter of ∼20 nm. The GdO nanorods/g-C3N4 nanocomposite was analyzed using XRD, Fourier transmission-infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, field-emission scanning electron microscopy with elemental mapping, and energy-dispersive X-ray spectrometry. The GdO/g-C3N4 nanocomposite was fabricated on a screen-printed carbon paste electrode for the electrochemical determination of clioquinol, which demonstrated rapid electron and ion transfer. The sensor was studied for its dual-modality detection using differential pulse voltammetry (DPV) and amperometry (i–t) techniques, which showed a wide detection range for DPV from 0.099 to 448.30 μM and i–t from 0.008 to 78.7 μM, and the lateral limit of detection for DPV was 4.8 nM and i–t was 1.2 nM with ultra-low sensitivity for DPV of 16.39 μA μM–1 cm–2 and i–t of 15.6 μA μM–1 cm–2 (S/N = 3). The prepared electrochemical sensor exhibited stability, selectivity, and sensitivity, which were markedly reported by DPV and i–t tests, and its use was further studied in real-time analysis using pharmaceutical and biological samples.

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Section: Resultsmentioning

confidence: 91%

Gadolinium Oxide Nanorods Anchored on g-C3N4 Nanosheets for Dual-Mode Electrochemical Determination of Clioquinol in Real-Time Analysis

Sharma

Ganguly

Santhan

et al. 2022

ACS Appl. Nano Mater.

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“…Chawda et al did a study whereby they examined the application of surface-engineered Gd 2 O 3 nanorods and cuboids in the field of biological imaging. 22 The findings of this investigation indicated that these nano-sized crystals hold potential for various biomedical applications, particularly in drug delivery, when combined with appropriately functionalized drug molecules. The practical and convenient biomedical application strategy involves the synthesis and characterization of nanorods of gadolinium hydroxide and Gd 2 O 3 by the hydrothermal procedure.…”

Section: Introductionmentioning

confidence: 79%

Synergistic antibacterial and anticancer activity in gadolinium–chitosan nanocomposite films: A novel approach for biomedical applications

Khalil,

Bashal,

Habeeb

et al. 2024

Applied Organom Chemis

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Driven by the continuous search for materials with antibacterial and anticancer applications, this study focuses on the fabrication of nanocomposite films using chitosan as the basis material, with the addition of gadolinium oxide nanoparticles at varying weight percentages (5 and 10 wt.% Gd2O3/CS). The films were made using the coprecipitation‐solution cast approach. The structural characteristics of the Gd2O3/CS films that were formed were investigated and confirmed using a range of analytical techniques, including Fourier transform infrared, X‐ray diffraction, and scanning electron microscopy–energy‐dispersive X‐ray spectroscopy. The X‐ray diffraction study provided unambiguous evidence of an increased degree of crystallinity in chitosan with the inclusion of gadolinia. The particle size was determined using the Debye–Scherrer formula, resulting in an estimated value of 36 nm. Following this, a thorough examination was undertaken to evaluate the antibacterial effectiveness against one strain of Gram‐positive bacteria and two strains of Gram‐negative bacteria. Our research has revealed that the efficacy of the inspected Gd2O3/CS as bactericides is superior to that of CS alone. Furthermore, the MCF‐7, HCT‐116, and HepG‐2 cell lines exhibited anticancer activity when exposed to the Gd2O3/CS nanocomposites. In addition, nanocomposites exhibit significant antioxidant activity in comparison with the conventional vitamin C. These findings provide evidence for the viability of our nanocomposites in combating breast cancer.

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“…Effect of the surface functionalization on the morphology of lanthanide nanostructures was studied by the synthesis of gadolinium oxide nanostructures in the presence of folic acid (FA) and D-gluconic acid (GA) as capping agents. [83] It was observed from the microscopy data that the nanorods and nanocuboids were generated in the presence of FA and GA respectively. The interaction between the hydroxyl groups present in the FA and GA with the urea and H 2 O 2 controls the stability and anisotropic growth of the lanthanide nanostrucutres ( Figure 36).…”

Section: Bio-medical Applicationsmentioning

confidence: 99%

“…Field emission scanning electron microscope (FESEM) images for: (a) bare-Gd, (b) FAÀ Gdand (c) GAÀ Gd. Reproduced with permission from Ref [83]…”

mentioning

confidence: 99%

Glyco‐Conjugate Design and Demonstration as Receptors for the Species of Biological, Ecological and Medical Importance: Support from Spectroscopy and Microscopy

Areti¹,

Nag

Rao

2021

ChemistrySelect

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This review article mainly provides a critical evaluation of the ion and molecular recognition aspects along with the biomedical applications of the conjugates of carbohydrates published in the literature during the past ten years. Thus, the article primarily deals with the derivatives of carbohydrates, wherein these were selective towards the species of biological and ecological relevance as well as their utility in the medical research. The recognition has been monitored by different spectral techniques, such as, fluorescence and absorption spectroscopy and in some cases even visual colour changes. These were further supported by 1H‐Nuclear Magnetic Resonance, electrospray ionization mass spectrometry (ESI MS) and microscopy data. Over the past one decade, there has been a surge in the development and applications of the conjugates of carbohydrates in the field of chemosensors. The accelerated interest is mainly due to their water solubility, biocompatibility and selective and sensitive interactions exhibited by these towards ions and molecules of the type of examples included in this article. Owing to the presence of protein‐carbohydrate interactions, the carbohydrate conjugates have been employed for different biomedical applications such as antimicrobial activity, cell imaging and specific targeting. Therefore, in this article, the sensing and medical applications of the carbohydrate conjugates have also been discussed. For clarity, the main features have been conveniently divided into four sections, sensing of guest species, viz., metal ion, anion or amino acid and bio‐medical applications. While discussing the biomedical applications, such as, the imaging, specific targeting and anti‐disease activity of these conjugates in solution as well when they are attached onto solid surfaces have been covered. Overall, this article deals with the analysis of more than three dozen glyco‐based receptors demonstrated for selective sening of ions and molecular species along with their applications towards disease diagnosis and or prevention. Enough efforts were put to place these on a common platform and to compare these accordingly.

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Surface-engineered gadolinium oxide nanorods and nanocuboids for bioimaging

Cited by 8 publications

References 46 publications

Gadolinium Oxide Nanorods Anchored on g-C3N4 Nanosheets for Dual-Mode Electrochemical Determination of Clioquinol in Real-Time Analysis

Gadolinium Oxide Nanorods Anchored on g-C3N4 Nanosheets for Dual-Mode Electrochemical Determination of Clioquinol in Real-Time Analysis

Synergistic antibacterial and anticancer activity in gadolinium–chitosan nanocomposite films: A novel approach for biomedical applications

Glyco‐Conjugate Design and Demonstration as Receptors for the Species of Biological, Ecological and Medical Importance: Support from Spectroscopy and Microscopy

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