Synthesis of Samarium-Based Metal Organic Compound Nanoparticles with Polychromatic-Photoluminescence for Bio-Tissue Fluorescence Imaging

Abstract

The development of nanomaterials with special optical window is critical for clinical applications and the optoelectronic industry. In this work, eight kinds of samarium-based metal organic compound nanoparticles (Sm–Fe, Sm–Ga, Sm–Mn, Sm–Na, Sm–Nb, Sm–W, Sm–Cu, and Sm–Al) were synthesized through a solution method. They show polychromatic-photoluminescence spectra extended from the UV to near-infrared (NIR) region when excited by 280 nm, 380 nm, 480 nm, 580 nm, and 785 nm light. They emit direct white light with respect to UV excitation. Tunable white-to-green fluorescence can be achieved by variation of excitation light around 300–400 nm. When they are excited by a 785 nm light source, they show intense fluorescence around 800–1100 nm, which is promising for NIR bio-imaging. Their application in multicolor ultra-wide-range bio-tissue fluorescence imaging is demonstrated by UV (359–371 nm), blue (450–490 nm), green (540–552 nm), and NIR light (central wavelength = 785 nm) excitation with pig kidney tissue samples.

Magnetic and Luminescence Properties of 8-Coordinated Pyridyl Adducts of Samarium(III) Complexes Containing 4,4,4-Trifluoro-1-(naphthalen-2-yl)-1,3-butanedionate

“…Samarium-based compounds and metal-organic nanoparticles are interesting lanthanide emitters, especially in the NIR (700-1000 nm region), where the majority of the samarium(III) compounds exhibit orange/red light emission [1][2][3][4][5][6][7][8][9], but other lights are rare [9][10][11][12]. Many of these compounds have been widely used in biomedical fields in fluorescence imaging [13][14][15][16].…”

Stable single phases of samarium gallium oxide (Sm3GaxOy) nano semiconductor self-assembly for supercapacitor and photocatalytic applications

“…The peak present at 25 eV is possibly attributed to Sm–O–Ga bonding. 59 The O 1s spectra of Sm 3 Ga 5 O 12 and Sm 3 GaO 6 , shown in Fig. 5e and f, are characterized by two distinct deconvoluted peaks.…”

Benzene Oxidation in Air by an Amine-Functionalized Metal–Organic Framework-Derived Carbon- and Nitrogen-Loaded Zirconium Dioxide-Supported Platinum Catalyst

“…The sequential order of decline in the O ads peak relative contribution to the core-level O 1s spectra was observed as follows: 1.5%-Pt/UiO-66-NH 2 (18.1%) > 0.8%-Pt/UiO-66-NH 2 (14.1%) > 0.2%-Pt/UiO-66-NH 2 (12.5%) (Figure S16c–e). For 1.5%-Pt/UiO-66-NH 2 -R, the O ads (533.8 eV), ZrO 2 (529.9 eV), and C–O (531.4 eV) species were identified in the core-level O 1s spectrum , (Figure S16f).…”