Multispectral upconversion nanoparticles for near infrared encoding of wearable devices

Lee, Gibum; Mun, Jonghwan; Choi, Heung‐Jin; Han, Seulgi; Hahn, Sei Kwang

doi:10.1039/d1ra03572j

Cited by 7 publications

(10 citation statements)

References 44 publications

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“…Aiming to identify even the smallest subcomponents and raw materials, various strategies have been developed to miniaturize ID taggants to a (sub)micrometer scale. [ 8–19 ]…”

Section: Introductionmentioning

confidence: 99%

“…Aiming to identify even the smallest subcomponents and raw materials, various strategies have been developed to miniaturize ID taggants to a (sub) micrometer scale. [8][9][10][11][12][13][14][15][16][17][18][19] Strategies that utilize designed physicochemical material properties for the spectral encoding of information have come to the forefront as they promise to achieve a plethora of encoding options and a high level of ID security. [20][21][22][23][24][25][26][27][28][29] Lately, optically resolved signals, including UV-vis, [30][31][32] infrared, [33][34][35] surface-enhanced Raman scattering (SERS), [36][37][38] and fluorescence, [22,23,27,28,[39][40][41][42][43][44][45][46][47][48][49][50]…”

Section: Introductionmentioning

confidence: 99%

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Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity, and Security of Micrometer‐Scaled Identification Taggants by Dual‐Spectral Encoding

Müssig

Reichstein

Miller

et al. 2022

Small

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(Sub)micrometer‐scaled identification (ID) taggants enable direct identification of arbitrary goods, thereby opening up application fields based on the possibility of tracking, tracing, and anti‐counterfeiting. Due to their small dimensions, these taggants can equip in principle even the smallest subcomponents or raw materials with information. To achieve the demanded applicability, the mostly used optically encoded ID taggants must be further improved. Here, micrometer‐scaled supraparticles with spectrally encoded luminescent and magnetically encoded signal characteristics are reported. They are produced in a readily customizable bottom‐up fabrication procedure that enables precise adjustment of luminescent and magnetic properties on multiple hierarchy levels. The incorporation of commonly used magnetic nanoparticles and fluorescent dyes, respectively, into polymer nanocomposite particles, establishes a convenient toolbox of magnetic and luminescent building blocks. The subsequent assembly of selected building blocks in the desired ratios into supraparticles grants for all the flexibility to freely adjust both signal characteristics. The obtained spectrally resolved visible luminescent and invisible magnetic ID signatures are complementary in nature, thus expanding applicability and information security compared to recently reported optical‐ or magnetic‐encoded taggants. Additionally, the introduced ID taggant supraparticles can significantly enhance the coding capacity. Therefore, the introduced supraparticles are considered as next‐generation ID taggants.

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“…Aiming to identify even the smallest subcomponents and raw materials, various strategies have been developed to miniaturize ID taggants to a (sub)micrometer scale. [ 8–19 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity, and Security of Micrometer‐Scaled Identification Taggants by Dual‐Spectral Encoding

Müssig

Reichstein

Miller

et al. 2022

Small

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“…NaYF 4 :Yb 3+ , Tm 3+ (59.5% Y 3+ , 40% Yb 3+ , and 0.5% Tm 3+ molar ratio) core nanoparticles were synthesized as reported elsewhere . One millimole LnCl 3 (0.595 mmol YCl 3 , 0.4 mmol YbCl 3 , and 0.005 mmol TmCl 3 ) was dissolved in 5 mL of methanol in a three-necked 250 mL flask, which was maintained at 70 °C with magnetic stirring to evaporate methanol.…”

Section: Methodsmentioning

confidence: 99%

“…NaYF 4 :Yb 3+ , Tm 3+ @NaGdF 4 :Yb +3 (98% Gd 3+ and 2% Yb 3+ molar ratio) core–shell nanoparticles were synthesized as reported elsewhere . The shell precursor was prepared using the same methods as those described above.…”

Section: Methodsmentioning

confidence: 99%

“…Especially, the large anti-Stokes shift enables the conversion of deep tissue-penetrating near-infrared (NIR) light to UV–visible light for biophotonic applications in the deep tissue. In this regard, UCNPs have been widely investigated for various biophotonic applications to PDT, , PTT, tissue bonding, multimodal bioimaging, − and biomedical devices. − …”

Section: Introductionmentioning

confidence: 99%

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Hyaluronate–Black Phosphorus–Upconversion Nanoparticle Complex for Non-invasive Theranosis of Skin Cancer

Lee

Choi

et al. 2022

Biomacromolecules

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Despite the wide investigation on black phosphorus (BP) for biophotonic applications, the finite depth of light penetration has limited further development of BP-based photomedicines. Here, we developed a hyaluronate−BP−upconversion nanoparticle (HA−BP−UCNP) complex for near-infrared (NIR) light-mediated multimodal theranosis of skin cancer with photoacoustic (PA) bioimaging, photodynamic therapy (PDT), and photothermal therapy (PTT). In contrast to the conventional BPbased skin cancer theranosis, the HA−BP−UCNP complex could be non-invasively delivered into the tumor tissue to induce the cancer cell apoptosis upon NIR light irradiation. The PA imaging of BP successfully visualized the non-invasive transdermal delivery of the HA−BP−UCNP complex into the mice skin. HA in the complex facilitated the transdermal delivery of BP into the tumor tissue under the skin. Upon 980 nm NIR light irradiation, the UCNP converted the light to UV−blue light to generate reactive oxygen species by sensitizing BP in the HA−BP−UCNP complex for PDT. Remarkably, 808 nm NIR irradiation with PTT triggered the apoptosis of tumor cells. Taken together, we could confirm the feasibility of the HA−BP−UCNP complex for NIR light-mediated multimodal theranosis of skin cancers.

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Upconversion Nanoparticles Based Sensing: From Design to Point‐of‐Care Testing

Wu,

Wei

et al. 2024

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Rare earth‐doped upconversion nanoparticles (UCNPs) have achieved a wide range of applications in the sensing field due to their unique anti‐Stokes luminescence property, minimized background interference, excellent biocompatibility, and stable physicochemical properties. However, UCNPs‐based sensing platforms still face several challenges, including inherent limitations from UCNPs such as low quantum yields and narrow absorption cross–sections, as well as constraints related to energy transfer efficiencies in sensing systems. Therefore, the construction of high‐performance UCNPs‐based sensing platforms is an important cornerstone for conducting relevant research. This work begins by providing a brief overview of the upconversion luminescence mechanism in UCNPs. Subsequently, it offers a comprehensive summary of the sensors’ types, design principles, and optimized design strategies for UCNPs sensing platforms. More cost‐effective and promising point‐of‐care testing applications implemented based on UCNPs sensing systems are also summarized. Finally, this work addresses the future challenges and prospects for UCNPs‐based sensing platforms.

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Multispectral upconversion nanoparticles for near infrared encoding of wearable devices

Abstract: Multispectral transparent films of upconversion nanoparticles are developed for near-infrared encoding of wearable devices including contact lenses and patch devices.

Cited by 7 publications

References 44 publications

Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity, and Security of Micrometer‐Scaled Identification Taggants by Dual‐Spectral Encoding

Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity, and Security of Micrometer‐Scaled Identification Taggants by Dual‐Spectral Encoding

Hyaluronate–Black Phosphorus–Upconversion Nanoparticle Complex for Non-invasive Theranosis of Skin Cancer

Upconversion Nanoparticles Based Sensing: From Design to Point‐of‐Care Testing

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