Exploiting the upconversion luminescence, Lewis acid catalytic and photothermal properties of lanthanide-based nanomaterials for chemical and polymerization reactions

Abstract

Lanthanide-based nanocrystals possess three unique physical properties that make them attractive for facilitating photoreactions, namely photon upconversion, Lewis acid catalytic activity and photothermal effect. When co-doped with suitable sensitizer and...

Near-infrared light-heatable platinum nanozyme for synergistic bacterial inhibition

“…The photothermal antimicrobial strategy is such an energy conversion-based bacterial disinfection method, which is favored for its high killing efficiency and spatial and temporal controllability ( Han et al, 2020 ). The photothermal effect is a property of materials that can harvest and transfer the photon energy from irradiated light to heat energy, which is promising for wide applications ( Wang et al, 2019 ; Wu and Yeow, 2022 ; Zeng et al, 2022 ; Fan et al, 2023 ; Huang et al, 2023 ; Jiao et al, 2023 ; Yue et al, 2023 ; Zhao et al, 2023 ; Zhu et al, 2023 ). In the photothermal antimicrobial strategy, nanomaterials with photothermal conversion efficiency, such as graphene, Fe 3 O 4 , polydopamine (PDA), and gold nanostructures, can efficiently convert the photon energy of near-infrared light into thermal energy to achieve efficient killing of different types of bacteria ( Niu et al, 2018 ; Wang et al, 2022 ).…”

Orthogonal light-triggered multiple effects based on photochromic nanoparticles for DNA cleavage and beyond

“…[19][20][21][22][23] Among them, light-regulated DNA cleavage has gained much attention due to the advantages of good stability, easy access to light sources, high biosafety, and strong controllability. [24][25][26][27] Significant progress has been recently achieved in this field. For example, chiral cysteine-modified CdTe nanoparticles have been proven to hold the ability to cut DNA at the restriction site GAT 0 ATC under circularly polarized light excitation.…”

Highly‐Doped Lanthanide‐Based Nanocrystals with Cooperative Core‐Shell Upconversion Emission for Multicomponent One‐Pot Chemical Transformations

“…[ 19 ] Given its unique features, UCNC can therefore be exploited to facilitate chemical reactions by acting as a LA catalyst, nanolamp to excite UV‐visible light absorbing photocatalyst, and nanoheater to improve reaction kinetics. [ 18 ]…”

“…[19] Given its unique features, UCNC can therefore be exploited to facilitate chemical reactions by acting as a LA catalyst, nanolamp to excite UV-visible light absorbing photocatalyst, and nanoheater to improve reaction kinetics. [18] The use of NIR excitation light in photochemical reactions is advantageous since it penetrates deeper into the reaction mixture when compared to direct UV/visible light irradiation. [20][21][22] Apart from the commonly used 980-nm light to excite Yb 3+ , longer wavelength light such as a 1530-nm light was employed in conjunction with an Er 3+ -sensitized system to produce UC luminescence.…”

“…[12][13][14][15][16] Apart from being luminescent, lanthanide-based nanocrystals also behave as an effective Lewis acid (LA) catalyst. [17,18] The reactivity of substrates containing heteroatoms such as carbonyl oxygen is increased when the latter coordinates to and accepts electron from surface lanthanides. Another interesting property of Yb 3+doped UCNC is its ability to convert NIR light to thermal heat after energy trapping by non-radiative quenchers in the nanocrystal.…”