Synthesis of molybdenum oxide nanoparticles by nanosecond laser ablation

被引：25

作者：

Zamora-Romero, Noe ^{[1
]}

Camacho-Lopez, Miguel A. ^{[2
]}

Vilchis-Nestor, Alfredo R. ^{[3
]}

Castrejon-Sanchez, Victor H. ^{[4
]}

Aguilar, Guillermo ^{[5
]}

Camacho-Lopez, Santiago ^{[6
]}

Camacho-Lopez, Marco ^{[7
]}

机构：

[1] Univ Calif Riverside, Dept Mat Sci & Engn, 900 Univ Ave, Riverside, CA 92521 USA

[2] Univ Autonoma Estado Mexico, Fac Med, Lab Fotomed Biofoton & Espect Laser Pulsos Ultrac, Jesus Carranza & Paseo Tollocan S-N, Toluca 50120, Mexico

[3] Univ Autonoma Estado Mexico, UAEM UNAM Fac Quim, Ctr Conjunto Invest Quim Sustentable, Toluca 50120, Mexico

[4] Tecnol Estudios Super Jocotitlan, Carretera Toluca Atlacomulco Km 44-8, Jocotitlan 50700, Mexico

[5] Univ Calif Riverside, Dept Mech Engn, 900 Univ Ave, Riverside, CA 92521 USA

[6] Ctr Invest Cient & Educ Super Ensenada, Carretera Ensenada Tijuana 3918, Ensenada 22860, BC, Mexico

[7] Univ Autonoma Estado Mexico, Fac Quim, Lab Invest & Desarrollo Mat Avanzados, Campus Rasedal, Toluca 50925, Mexico

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2020年 / 240卷 / 240期

关键词：

Photothermal therapy; Photothennal agent; Molybdenum oxide; Laser ablation; Nanoparticles fragmentation; PHOTOTHERMAL THERAPY; PLASMON RESONANCE; CANCER-THERAPY; GOLD; NANOMATERIALS; LIQUID; TRIOXIDE;

D O I：

10.1016/j.matchemphys.2019.122163

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phothermal therapy (PTT) is one of the most promising techniques to treat cancer. Finding the ideal PIT agent nanomaterial has remained a challenge and has brought the interest of several researchers. In this work, we report the synthesis of molybdenum oxide (MoO5) nanoparticles (NPs), which exhibit absorption in the biological optical window similar to 840 nm, by using the laser ablation of solids in liquids (LASL) technique with nanosecond (ns) pulses. A Nd:YAG laser was used to synthesize the NPs in deionized (DI) water, free of surfactants or additives, which were optically characterized by absorption spectroscopy and TEM-EDX microscopy. Semi spherical NPs with a suitable average size and shape for potential use as PTT agents were obtained by laser ablation and ablation + fragmentation. The calculated band gap is 3.1 eV, which corresponds to MoO3. Micro-Raman spectroscopy studies determined that these NPs are composed of amorphous molybdenum oxide hydrates (MoO3 center dot xH(2)O).

引用

页数：6

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