Enhancing biosensor sensitivity with CeO2 nanocomposites for biomedical and environmental applications

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162526 - 162526

Опубликована: Апрель 1, 2025

Язык: Английский

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Current progress in organic–inorganic hetero-nano-interfaces based electrochemical biosensors for healthcare monitoring

Coordination Chemistry Reviews, Год журнала: 2021, Номер 452, С. 214282 - 214282

Опубликована: Ноя. 19, 2021

Язык: Английский

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Advancement in upconversion nanoparticles based NIR-driven photocatalysts

Renewable and Sustainable Energy Reviews, Год журнала: 2021, Номер 151, С. 111631 - 111631

Опубликована: Сен. 7, 2021

Язык: Английский

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Near-Infrared-to-Near-Infrared Optical Thermometer BaY₂O₄: Yb³⁺/Nd³⁺ Assembled with Photothermal Conversion Performance

Inorganic Chemistry, Год журнала: 2022, Номер 61(13), С. 5425 - 5432

Опубликована: Март 25, 2022

Nowadays, the construction of photothermal therapy (PTT) agents integrated with real-time thermometry for cancer treatment in deep tissues has become a research hotspot. Herein, an excellent conversion material, BaY2O4: Yb3+/Nd3+, assembled optical is developed successfully. Ultrasensitive temperature sensing implemented through fluorescence intensity ratio thermally coupled Nd3+: 4Fj (j = 7/2, 5/2, and 3/2) maximal absolute relative sensitivity 68.88 3.29% K-1, respectively, which surpass overwhelming majority same type thermometers. Especially, enhanced Nd3+ luminescence factor 180 detected irradiation at 980 nm, resulting from improvement phonon-assisted energy transfer efficiency. Meanwhile, performance sample enough to destroy pathological tissues, can be raised 319.3 K after s near-infrared (NIR) invariable power density 13.74 mW/mm2. Besides, NIR emission reach depth 7 mm biological as determined by ex vivo experiment. All results show potential application Yb3+/Nd3+ deep-tissue PTT agent simultaneously equipped function.

Язык: Английский

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Hollow nanoparticles synthesized via Ostwald ripening and their upconversion luminescence-mediated Boltzmann thermometry over a wide temperature range

Light Science & Applications, Год журнала: 2022, Номер 11(1)

Опубликована: Июль 11, 2022

Upconversion nanoparticles (UCNPs) with hollow structures exhibit many fascinating optical properties due to their special morphology. However, there are few reports on the exploration of UCNPs and applications, mainly because difficulty in constructing by conventional methods. Here, we report a one-step template-free method synthesize NaBiF4:Yb,Er (NBFYE) via Ostwald ripening under solvothermal conditions. Moreover, also elucidate possible formation mechanism (HNPs) studying growth process detail. By changing contents polyacrylic acid H2O reaction system, central cavity size NBFYE can be adjusted. Benefiting from structural characteristics large internal surface area high permeability, HNPs excellent luminescence 980 nm near-infrared irradiation. Importantly, act as self-referenced ratiometric luminescent thermometers laser irradiation, which effective over wide temperature range 223 K 548 have maximum sensitivity value 0.0065 K-1 at 514 K. Our work clearly demonstrates novel for synthesizing develops provides new idea structure will encourage researchers further explore applications UCNPs.

Язык: Английский

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Multi-mode ratiometric thermometry using thermo-intensified NIR emission

Chemical Engineering Journal, Год журнала: 2022, Номер 449, С. 137890 - 137890

Опубликована: Июль 2, 2022

Язык: Английский

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Lanthanide molecular cluster-aggregates as the next generation of optical materials

Chemical Science, Год журнала: 2023, Номер 14(22), С. 5827 - 5841

Опубликована: Янв. 1, 2023

In this perspective, we provide an overview of the recent achievements in luminescent lanthanide-based molecular cluster-aggregates (MCAs) and illustrate why MCAs can be seen as next generation highly efficient optical materials.

Язык: Английский

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Continuous Ultra‐Broadband Near‐Infrared Sc₂O₃‐Based Nanophosphor Realized by Spectral Bridge of Cr³⁺‐Yb³⁺‐Cr⁴⁺ for Multiple Optical Applications

Advanced Optical Materials, Год журнала: 2023, Номер 11(19)

Опубликована: Июнь 20, 2023

Abstract Cr 3+ ‐activated near‐infrared (NIR) phosphors are one of the most influential candidates for new generation intelligent NIR phosphor‐converted light‐emitting diode (pc‐LED) light sources. For spectral analysis, broader spectrum, more useful information it contains. Herein, ultra‐broadband Cr‐activated Sc 2 O 3 nanophosphors, which exhibit from 650 to 1600 nm, developed by sol–gel method. This emission originates presence and 4+ , two luminescent centers confirmed diffuse reflection spectra, electron paramagnetic resonance, time‐resolved photoluminescence temperature‐dependent spectra. The nanophosphor exhibits excellent temperature‐sensing performance with S A = 4.102% K −1 R 1.855% . Co‐doping Yb into nanophosphors builds ‐Yb ‐Cr model bridge gap located at 1000 forming a continuous spectrum ranging nm first time. Moreover, introduction improves thermal stability 29.49% 50.65% 150 °C. transmission spectra water, ethanol, peanut oil demonstrate that :Cr favor potential applications in analysis. construction realizing based on cheap blue LEDs provides novel effective insights.

Язык: Английский

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Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(9), С. 2799 - 2810

Опубликована: Янв. 1, 2023

A series of rigid–flexible-ligand functionalized dodeca-nuclear lanthanide–tungsten heterometal cluster incorporated ring-shaped selenotungstates [H2N(CH3)2]16Na2[Ln4(H2O)6(HPZDA)2(HFMA)2W8O21][B-α-SeW9O33]4·29H2O [Ln = Ce3+ (1), Pr3+ (2), Nd3+ (3); H2PZDA 2,3-pyrazine dicarboxylic acid, H2FMA fumaric acid] and [H2N(CH3)2]14Cs2Na2[Eu4(H2O)6(HPZDA)2(HFMA)2W8O21][B-α-SeW9O33]4·30H2O (4) were prepared by a cooperative strategy rigid flexible ligands. The polyanion skeletons 1–4 comprise an inorganic–organic hybrid [Ln4(H2O)6(HPZDA)2(HFMA)2W8O21]14+ heterometallic surrounded four trivacant Keggin [B-α-SeW9O33]8− subunits in rectangle-like arrangement. Based on its fluorescence properties, 4 was used as fluorescent probe for detecting anthrax biomarker dipicolinic acid (DPA) with low limit detection, excellent selectivity anti-interference. possible enhancement mechanism the process DPA may stem from energy transfer to Eu3+ ions 4, which can be confirmed decay lifetime measurements H2O D2O without DPA, positive signal partial substitution ligands This work proposes feasible constructing new structural types polyoxometalate hybrids, also provides some meaningful insights into efficient biomolecule detection utilizing polyoxometalate-based luminescence materials.

Язык: Английский

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Structural analysis and photocatalytic activities of bismuth-lanthanide oxide perovskites

Journal of Solid State Chemistry, Год журнала: 2023, Номер 329, С. 124359 - 124359

Опубликована: Окт. 14, 2023

Язык: Английский

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