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Khajuria M, Bhat SA, Mittal SK, Raina R, Biswas P. Upconversion and Downshifting Luminescence from KSrVO 4:Er 3+ Nanophosphor with Judd-Ofelt Parameters. J Fluoresc 2024:10.1007/s10895-024-03887-3. [PMID: 39141274 DOI: 10.1007/s10895-024-03887-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024]
Abstract
This study investigates the synthesis and characterization of KSrVO4 phosphors doped with Er3+ ions using combustion synthesis route by using urea as a fuel. X-ray diffraction analysis confirmed the orthorhombic phase and nano-scale crystallite size of around 21 nm, while transmission electron microscopy showed spherical and rod-shaped morphologies. The studies detected upconversion emission spectra at 526, 542 and 643 nm, representing green and red transitions under 980 nm excitation. Downshifting emissions under 350 nm excitation revealed peaks at 492, 544 and 680 nm. The critical quenching concentration was 2.5 mol%, resulting from dipole-quadrupole interactions among dopant ions. The direct and indirect optical band gaps were calculated as 3.61 and 3.41 eV, respectively. The calculated chromaticity coordinates and color correlated temperature values of the phosphor surpassed 5000 K, suggesting its viability for cool LED applications. These findings emphasize KSrVO4:Er3+ as a promising greenish component in white LEDs and a potent upconverting luminescence material for bio-imaging and photovoltaics.
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Affiliation(s)
- Meniak Khajuria
- School of Physics, Shri Mata Vaishno Devi University, Katra J&K, 182320, India
| | - Sajad A Bhat
- School of Physics, Shri Mata Vaishno Devi University, Katra J&K, 182320, India
| | - Shivam Kumar Mittal
- Department of Physics, Indian Institute of Technology, Roorkee, 247667, India
| | - Rohit Raina
- School of Physics, Shri Mata Vaishno Devi University, Katra J&K, 182320, India
| | - Pankaj Biswas
- School of Physics, Shri Mata Vaishno Devi University, Katra J&K, 182320, India.
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2
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Gültekin HE, Yaşayan G, Bal-Öztürk A, Bigham A, Simchi AA, Zarepour A, Iravani S, Zarrabi A. Advancements and applications of upconversion nanoparticles in wound dressings. MATERIALS HORIZONS 2024; 11:363-387. [PMID: 37955196 DOI: 10.1039/d3mh01330h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Wound healing is a complex process that requires effective management to prevent infections and promote efficient tissue regeneration. In recent years, upconversion nanoparticles (UCNPs) have emerged as promising materials for wound dressing applications due to their unique optical properties and potential therapeutic functionalities. These nanoparticles possess enhanced antibacterial properties when functionalized with antibacterial agents, helping to prevent infections, a common complication in wound healing. They can serve as carriers for controlled drug delivery, enabling targeted release of therapeutic agents to the wound site, allowing for tailored treatment and optimal healing conditions. These nanoparticles possess the ability to convert near-infrared (NIR) light into the visible and/or ultraviolet (UV) regions, making them suitable for therapeutic (photothermal therapy and photodynamic therapy) and diagnostic applications. In the context of wound healing, these nanoparticles can be combined with other materials such as hydrogels, fibers, metal-organic frameworks (MOFs), graphene oxide, etc., to enhance the healing process and prevent the growth of microbial infections. Notably, UCNPs can act as sensors for real-time monitoring of the wound healing progress, providing valuable feedback to healthcare professionals. Despite their potential, the use of UCNPs in wound dressing applications faces several challenges. Ensuring the stability and biocompatibility of UCNPs under physiological conditions is crucial for their effective integration into dressings. Comprehensive safety and efficacy evaluations are necessary to understand potential risks and optimize UCNP-based dressings. Scalability and cost-effectiveness of UCNP synthesis and manufacturing processes are important considerations for practical applications. In addition, efficient incorporation of UCNPs into dressings, achieving uniform distribution, poses an important challenge that needs to be addressed. Future research should prioritize addressing concerns regarding stability and biocompatibility, efficient integration into dressings, rigorous safety evaluation, scalability, and cost-effectiveness. The purpose of this review is to critically evaluate the advantages, challenges, and key properties of UCNPs in wound dressing applications to provide insights into their potential as innovative solutions for enhancing wound healing outcomes. We have provided a detailed description of various types of smart wound dressings, focusing on the synthesis and biomedical applications of UCNPs, specifically their utilization in different types of wound dressings.
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Affiliation(s)
- Hazal Ezgi Gültekin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir 35620, Turkey
| | - Gökçen Yaşayan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Yeditepe University, 34755 Istanbul, Turkey
| | - Ayça Bal-Öztürk
- Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, 34010, Istanbul, Turkey
- Institute of Health Sciences, Department of Stem Cell and Tissue Engineering, Istinye University, 34010 Istanbul, Turkey
- Stem Cell and Tissue Engineering Application and Research Center (ISUKOK), Istinye University, Istanbul, Turkey
| | - Ashkan Bigham
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy (IPCB-CNR), Viale John Fitzgerald Kennedy 54, Mostra d'Oltremare Padiglione 20, 80125 Naples, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
| | - Abdolreza Arash Simchi
- Department of Materials Science and Engineering, Sharif University of Technology, 14588 Tehran, Iran
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, 14588 Tehran, Iran
| | - Atefeh Zarepour
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34396, Turkey.
| | - Siavash Iravani
- Independent Researcher, W Nazar ST, Boostan Ave, Isfahan, Iran.
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34396, Turkey.
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Conklin B, Conley BM, Hou Y, Chen M, Lee KB. Advanced theragnostics for the central nervous system (CNS) and neurological disorders using functional inorganic nanomaterials. Adv Drug Deliv Rev 2023; 192:114636. [PMID: 36481291 DOI: 10.1016/j.addr.2022.114636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/13/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
Various types of inorganic nanomaterials are capable of diagnostic biomarker detection and the therapeutic delivery of a disease or inflammatory modulating agent. Those multi-functional nanomaterials have been utilized to treat neurodegenerative diseases and central nervous system (CNS) injuries in an effective and personalized manner. Even though many nanomaterials can deliver a payload and detect a biomarker of interest, only a few studies have yet to fully utilize this combined strategy to its full potential. Combining a nanomaterial's ability to facilitate targeted delivery, promote cellular proliferation and differentiation, and carry a large amount of material with various sensing approaches makes it possible to diagnose a patient selectively and sensitively while offering preventative measures or early disease-modifying strategies. By tuning the properties of an inorganic nanomaterial, the dimensionality, hydrophilicity, size, charge, shape, surface chemistry, and many other chemical and physical parameters, different types of cells in the central nervous system can be monitored, modulated, or further studies to elucidate underlying disease mechanisms. Scientists and clinicians have better understood the underlying processes of pathologies for many neurologically related diseases and injuries by implementing multi-dimensional 0D, 1D, and 2D theragnostic nanomaterials. The incorporation of nanomaterials has allowed scientists to better understand how to detect and treat these conditions at an early stage. To this end, having the multi-modal ability to both sense and treat ailments of the central nervous system can lead to favorable outcomes for patients suffering from such injuries and diseases.
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Affiliation(s)
- Brandon Conklin
- Department of Chemistry and Chemical Biology, Rutgers-the State University of New Jersey, 123, Bevier Road, Piscataway, NJ 08854, USA
| | - Brian M Conley
- Department of Chemistry and Chemical Biology, Rutgers-the State University of New Jersey, 123, Bevier Road, Piscataway, NJ 08854, USA
| | - Yannan Hou
- Department of Chemistry and Chemical Biology, Rutgers-the State University of New Jersey, 123, Bevier Road, Piscataway, NJ 08854, USA
| | - Meizi Chen
- Department of Chemistry and Chemical Biology, Rutgers-the State University of New Jersey, 123, Bevier Road, Piscataway, NJ 08854, USA
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers-the State University of New Jersey, 123, Bevier Road, Piscataway, NJ 08854, USA.
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4
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Ray SK, Joshi B, Hur J. White-light emission in Yb 3+/Er 3+/Tm 3+- and Yb 3+/Er 3+/Tm 3+/Ho 3+-doped α-NiMoO 4nanoparticles. NANOTECHNOLOGY 2022; 33:395705. [PMID: 35640433 DOI: 10.1088/1361-6528/ac74cd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Yb3+/Er3+/Tm3+- and Yb3+/Er3+/Tm3+/Ho3+-dopedα-NiMoO4nanoparticles were synthesized using a microwave hydrothermal method and studied for white-light emission under 980 nm laser diode excitation. White upconversion (UC) light was successfully obtained with the appropriate control of blue, green, and red emissions by successfully tuning the Er3+and Ho3+concentrations in Yb3+/Er3+/Tm3+- and Yb3+/Er3+/Tm3+/Ho3+-dopedα-NiMoO4, respectively. In addition, the white color emission was shown by the CIE chromaticity coordinates of samples. The energy transfer mechanisms are explained in detail based on the emission spectra and pump power density-dependent UC luminescence intensity in rare earth (Yb3+/Er3+/Tm3+and Yb3+/Er3+/Tm3+/Ho3+)-dopedα-NiMoO4nanoparticles. The results indicate that Yb3+/Er3+/Tm3+- and Yb3+/Er3+/Tm3+/Ho3+-dopedα-NiMoO4nanoparticles can be good candidates for white-light devices.
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Affiliation(s)
- Schindra Kumar Ray
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
| | - Bhupendra Joshi
- Department of Fusion Science and Technology, Sun moon University, Tangjeong Myeon, 31460, Asan, Chungnam, Republic of Korea
| | - Jin Hur
- Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
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Wu J, Lu Q, Fu X, Xu H, Wan P, Fu H, Ding J, Zhang J, Mei Q. ZIF-8 encapsulated upconversion nanoprobes to evaluate pH variations in food spoilage. Mikrochim Acta 2022; 189:87. [DOI: 10.1007/s00604-022-05196-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/19/2022] [Indexed: 11/25/2022]
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Tang F, Hua Q, Wang X, Luan F, Wang L, Li Y, Zhuang X, Tian C. A novel electrochemiluminescence sensor based on a molecular imprinting technique and UCNPs@ZIF-8 nanocomposites for sensitive determination of imidacloprid. Analyst 2022; 147:3917-3923. [DOI: 10.1039/d2an01005d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An MIT-ECL sensor for IM detection based on UCNPs@ZIF-8 nanocomposites.
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Affiliation(s)
- Feiyan Tang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Qing Hua
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xiaobin Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Feng Luan
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Li Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yanhong Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Chunyuan Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
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7
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Huang Y, Zhai X, Ma T, Zhang M, Pan H, Weijia Lu W, Zhao X, Sun T, Li Y, Shen J, Yan C, Du Y. Rare earth-based materials for bone regeneration: Breakthroughs and advantages. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214236] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Arai MS, de Camargo ASS. Exploring the use of upconversion nanoparticles in chemical and biological sensors: from surface modifications to point-of-care devices. NANOSCALE ADVANCES 2021; 3:5135-5165. [PMID: 36132634 PMCID: PMC9417030 DOI: 10.1039/d1na00327e] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/21/2021] [Indexed: 05/04/2023]
Abstract
Upconversion nanoparticles (UCNPs) have emerged as promising luminescent nanomaterials due to their unique features that allow the overcoming of several problems associated with conventional fluorescent probes. Although UCNPs have been used in a broad range of applications, it is probably in the field of sensing where they best evidence their potential. UCNP-based sensors have been designed with high sensitivity and selectivity, for detection and quantification of multiple analytes ranging from metal ions to biomolecules. In this review, we deeply explore the use of UCNPs in sensing systems emphasizing the most relevant and recent studies on the topic and explaining how these platforms are constructed. Before diving into UCNP-based sensing platforms it is important to understand the unique characteristics of these nanoparticles, why they are attracting so much attention, and the most significant interactions occurring between UCNPs and additional probes. These points are covered over the first two sections of the article and then we explore the types of fluorescent responses, the possible analytes, and the UCNPs' integration with various material types such as gold nanostructures, quantum dots and dyes. All the topics are supported by analysis of recently reported sensors, focusing on how they are built, the materials' interactions, the involved synthesis and functionalization mechanisms, and the conjugation strategies. Finally, we explore the use of UCNPs in paper-based sensors and how these platforms are paving the way for the development of new point-of-care devices.
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Affiliation(s)
- Marylyn S Arai
- São Carlos Institute of Physics, University of São Paulo Av. Trabalhador Sãocarlense 400 13566-590 São Carlos Brazil
| | - Andrea S S de Camargo
- São Carlos Institute of Physics, University of São Paulo Av. Trabalhador Sãocarlense 400 13566-590 São Carlos Brazil
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Märkl S, Schroter A, Hirsch T. Small and Bright Water-Protected Upconversion Nanoparticles with Long-Time Stability in Complex, Aqueous Media by Phospholipid Membrane Coating. NANO LETTERS 2020; 20:8620-8625. [PMID: 33164510 DOI: 10.1021/acs.nanolett.0c03327] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemical and colloidal stability in complex aqueous media are among the main challenges preventing nanoparticles from successfully entering into the biomedical field. Small core-shell upconversion nanoparticles (UCNPs) NaYF4:Yb,Er@NaYF4 of 12 nm in diameter with a high surface-to-volume ratio are utilized to demonstrate that self-assembling phospholipid bilayers (PLMs) have several benefits compared to common ligand-exchange and ligand-addition particle coatings such as poly(acrylic acid) and amphiphilic polymers. An efficient hydrophobic barrier against water quenching and toward particle disintegration is formed by PLM. Particles with this functionalization have a higher upconversion luminescence in aqueous media in contrast to common surface ligands. They attract with better colloidal stability in phosphate buffer, in a wide pH range, in high ionic solutions, and in complex cell media, as is required for biological applications. Moreover, kidney cells (NRK) are not affected by these stable PLM-coated UCNPs as first cell viability tests reveal.
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Affiliation(s)
- Susanne Märkl
- University of Regensburg, Institute for Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg, Germany
| | - Alexandra Schroter
- University of Regensburg, Institute for Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg, Germany
| | - Thomas Hirsch
- University of Regensburg, Institute for Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg, Germany
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Sun S, Xiao QR, Ye CF, Jiang Y. Biomacromolecular fluorescent nanoparticles co-assembled by bovine serum albumin and DNA segments for living cell imaging. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Yang M, Gui Q, Ma J, Qi L, Bao B, Huang Y. Upconversion nanotubes with tunable fluorescence properties based on Gd 2O 2S:Ln 3+ (Ln 3+ = Yb 3+, Er 3+) and derivatives for photodynamic therapy. IET Nanobiotechnol 2020; 14:347-356. [PMID: 32691736 PMCID: PMC8676086 DOI: 10.1049/iet-nbt.2019.0376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/11/2019] [Accepted: 02/19/2020] [Indexed: 11/19/2022] Open
Abstract
In this study, Gd2O2S:Ln3+ (Ln3+ = Yb3+, Er3+) upconversion nanotubes (UCNTs) were synthesised by using Gd(OH)3:Ln3+ (Ln3+ = Yb3+, Er3+) nanotubes as the template. The luminescent and biological properties of Gd2O2S:Ln3+ (Ln3+ = Yb3+, Er3+) UCNTs, along with photodynamic therapy (PDT) applications of the Gd2O2S:8%Yb3+,2%Er3+ UCNT-Ce6 (chlorin e6) nanocomposites, were systematically studied. The resultant UCNTs showed excellent biocompatibility with human retinal pigment cells (ARPE-19) even after a prolonged incubation time of 72 h, and could be used as luminescent probes. Microscopic imaging revealed that the UCNTs existed mainly in cytoplasm. PDT studies on the Gd2O2S:8%Yb3+,2%Er3+ UCNT-Ce6 nanocomposites indicate that the growth of the tumour (cell) could be inhibited dramatically when it was injected (incubated) with Gd2O2S:8%Yb3+,2%Er3+ UCNT-Ce6 nanocomposites under the irradiation of 980 nm laser.
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Affiliation(s)
- Mei Yang
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China.
| | - Qingyuan Gui
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China
| | - Jinlei Ma
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China
| | - Lei Qi
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China
| | - Bijun Bao
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China
| | - Yida Huang
- Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology & Optometry, Wenzhou Medical University, 270 Xueyuan Xi Road, Wenzhou, Zhejiang 325027, People's Republic of China
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12
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Upconversion luminescence nanomaterials: A versatile platform for imaging, sensing, and therapy. Talanta 2020; 208:120157. [DOI: 10.1016/j.talanta.2019.120157] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/27/2019] [Accepted: 07/14/2019] [Indexed: 11/21/2022]
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13
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Affinity binding-mediated fluorometric protein assay based on the use of target-triggered DNA assembling probes and aptamers labelled with upconversion nanoparticles: application to the determination of platelet derived growth factor-BB. Mikrochim Acta 2019; 187:9. [PMID: 31797061 DOI: 10.1007/s00604-019-4024-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/09/2019] [Indexed: 10/25/2022]
Abstract
The target-triggered DNA assembling probe is presented for highly selective protein detection. Target-triggered DNA assembling is used in an amplification strategy based on affinity binding for identification and determination of proteins in general. Specifically, it was applied to the platelet derived growth factor-BB (PDGF-BB). A hairpin DNA (H-DNA) probe was designed containing (a) an aptamer domain for protein recognition and (b) a blocked DNAzyme domain for DNAzyme cleavage. An assistant DNA (A-DNA) probe containing aptamer and complementary domains was also employed to recognize protein and to induce DNA assembly. Once H-DNA and A-DNA recognize the same protein, H-DNA and A-DNA are in close proximity to each other. This induces DNA assembling for protein-triggered complex (Protein-Complex) with free DNAzyme domains. The free DNAzymes trigger the circular cleavage of molecular beacons for amplified signals. The assay is performed by fluorometry at an excitation wavelength of 980 nm and by collecting fluorescence at 545 nm. The platelet derived growth factor-BB (PDGF-BB) was accurately identified and selectively determined by this assay with a 22 pM detection limit (using the 3σ criterion). The responses for PDGF-BB is nearly 6-fold higher than for PDGF-AB, and 16-fold higher than PDGF-AA. This upconversion assay avoids any interference by the autofluorescence of biological fluids. Graphical abstractSchematic representation of the principle of the target-triggered DNA assembling probes mediated amplification strategy based on affinity binding for PDGF-BB. The UCNP probe is used for the quantitation of PDGF-BB with high selectivity.
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Hong E, Liu L, Bai L, Xia C, Gao L, Zhang L, Wang B. Control synthesis, subtle surface modification of rare-earth-doped upconversion nanoparticles and their applications in cancer diagnosis and treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110097. [DOI: 10.1016/j.msec.2019.110097] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 07/14/2019] [Accepted: 08/15/2019] [Indexed: 01/26/2023]
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15
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Safarpour H, Dehghani S, Nosrati R, Zebardast N, Alibolandi M, Mokhtarzadeh A, Ramezani M. Optical and electrochemical-based nano-aptasensing approaches for the detection of circulating tumor cells (CTCs). Biosens Bioelectron 2019; 148:111833. [PMID: 31733465 DOI: 10.1016/j.bios.2019.111833] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023]
Abstract
More recently, detection of circulating tumor cells (CTCs) has been considered as an appealing prognostic and diagnostic approach for cancer patients. CTCs as a type of tumor-derived cells are secreted by the tumor and released into the blood circulation. Since the migration of CTCs is an early event in cancer progression, patients who still have tumor-free lymph nodes have to be well examined for the CTCs presence in their blood circulation. Nowadays, there is a broad range of detection methods available to identify CTCs. As artificial RNA oligonucleotides or single-stranded DNA with receptor and catalytic characteristics, aptamers have been standing out, owing to their target-induced conformational modifications, elevated stability, and target specificity to be implemented in biosensing techniques. To date, several sensitivity-enhancement methods alongside smart nanomaterials have been used for the creation of new aptasensors to address the limit of detection (LOD), and improve the sensitivity of numerous analyte identification methods. The present review article supports a focused overview of the recent studies in the identification and quantitative determination of CTCs by aptamer-based biosensors and nanobiosensors.
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Affiliation(s)
- Hossein Safarpour
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Sadegh Dehghani
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rahim Nosrati
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nozhat Zebardast
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
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16
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Zhang R, Guan Y, Zhu Z, Lv H, Li F, Sun S, Li J. Multifunctional Tetracene/Pentacene Host/Guest Nanorods for Enhanced Upconversion Photodynamic Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37479-37490. [PMID: 31532613 DOI: 10.1021/acsami.9b12967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The tissue penetration depth of light and the singlet oxygen (1O2) generation efficiency of photosensitizers (PSs) are the two main factors that determine the effectiveness of photodynamic therapy for tumors. Herein, we report a novel strategy to prepare a multifunctional upconversion photosensitizer (UCPS) based on the host/guest nanoarchitecture. By a simple reprecipitation method, host/guest tetracene/pentacene nanorods (Tc/Pc NRs) were synthesized for enhancing triplet-triplet annihilation-upconversion (TTA-UC) or two-photon excited emission and 1O2 generation efficiency upon 650 or 808 nm excitation. Tc/Pc NRs had higher 1O2 quantum yield (74%) than Tc NRs (28%) upon 650 nm laser irradiation. The proposed mechanism is that doping Pc molecules into Tc NRs induces intermediate states between S0 and S1, shortening the energy gap for 1O2 generation and resulting in TTA-UC emission. Equally important, with 808 nm fs laser excitation, Tc/Pc NRs showed an enhanced 1O2 generation efficiency and two-photon absorption cross section (σ) compared with Tc NRs. In addition, when the tumors in mice were exposed to Tc/Pc NRs with 650 or 808 nm wavelength irradiation, the tumor inhibition rates achieved 99 and 95%, respectively. This work opens new perspectives for exploring novel nano-UCPSs for biomedical applications.
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Affiliation(s)
- Rui Zhang
- Department of Chemistry , Tianjin University , Tianjin 300072 , P. R. China
- Department of Chemistry , City University of Hong Kong , Hong Kong 999077 , P. R. China
| | - Yan Guan
- College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China
| | - Zhiyan Zhu
- Tianjin Research Center of Basic Medical Science , Tianjin Medical University , Tianjin 300070 , P. R. China
| | - Hongying Lv
- Institute of Radiation Medicine , Chinese Academy of Medical Sciences , Tianjin 300192 , P. R. China
| | - Futian Li
- Institute of Radiation Medicine , Chinese Academy of Medical Sciences , Tianjin 300192 , P. R. China
| | - Shuqing Sun
- Department of Chemistry , Tianjin University , Tianjin 300072 , P. R. China
| | - Juan Li
- Department of Hygienic Inspection, School of Public Health , Jilin University , Changchun 130021 , Jilin , P. R. China
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Tao Z, Deng J, Wang Y, Chen H, Ding Y, Hua X, Wang M. Competitive immunoassay for simultaneous detection of imidacloprid and thiacloprid by upconversion nanoparticles and magnetic nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23471-23479. [PMID: 31197672 DOI: 10.1007/s11356-019-05635-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
A rapid and sensitive immunoassay for the simultaneous detection of imidacloprid and thiacloprid was developed by using magnetic nanoparticles (MNPs) and upconversion nanoparticles (UCNPs). The UCNPs of NaYF4:Yb, Er and NaYF4:Yb, Tm were synthesized and conjugated with anti-imidacloprid monoclonal antibody (mAb) and anti-thiacloprid mAb as signal labels, while the MNPs were conjugated with antigens of thiacloprid and imidacloprid as separation elements. The fluorescence intensities of Yb/Er- and Yb/Tm-doped UCNPs were detected simultaneously in 544 nm and 477 nm under the excitation of NIR light (980 nm). The amounts of mAb-conjugated UCNPs that were separated by antigen-conjugated MNPs were determined based on competitive immunoassays. Under the optimal conditions, the 50% inhibiting concentration (IC50) and limit of detection (LOD, IC10) were 5.80 and 0.32 ng/mL for imidacloprid and 6.45 and 0.61 ng/mL for thiacloprid, respectively. The immunoassay exhibited negligible cross-reactivity with analogs of imidacloprid and thiacloprid except imidaclothiz (86.2%). The average recoveries of imidacloprid and thiacloprid in environmental and agricultural samples, including paddy water, soil, pears, oranges, cucumbers, and wheat, ranged from 78.4 to 105.9% with relative standard deviations (RSDs) of 2.1-11.9% for imidacloprid and ranged from 82.5 to 102.3% with RSDs of 1.0-16.5% for thiacloprid. In addition, the results of the immunoassay correlated well with high-performance liquid chromatography for the detection of the authentic samples.
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Affiliation(s)
- Zhexuan Tao
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Jiaqi Deng
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Yan Wang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - He Chen
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Yuan Ding
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Xiude Hua
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Minghua Wang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu Province, China.
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18
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Wiercigroch-Walkosz K, Cichos J, Karbowiak M. Growth of silica shell on hydrophobic upconverting nanocrystals – Mechanism and control of porosity. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Yan F, Sun X, Zu F, Bai Z, Jiang Y, Fan K, Wang J. Fluorescent probes for detecting cysteine. Methods Appl Fluoresc 2018; 6:042001. [PMID: 30039804 DOI: 10.1088/2050-6120/aad580] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cysteine plays a crucial role in physiological processes. Therefore, it is necessary to develop a method for detecting cysteine. Fluorimetry has the advantages of convenient detection, short response time, high sensitivity and good selectivity. In this review, fluorescent probes that detect cysteine over the past three years are summarized based on structural features of fluorophores such as coumarin, BODIPY, rhodamine, fluorescein, CDs, QDs, etc and reaction groups including acrylate, aldehyde, halogen, 7-nitrobenzofurazan, etc. Then, effects of different combinations between fluorophores and response groups on probe properties and detection performances are discussed.
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20
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Cawthray J, Wasan E, Wasan K. Bone-seeking agents for the treatment of bone disorders. Drug Deliv Transl Res 2018; 7:466-481. [PMID: 28589453 DOI: 10.1007/s13346-017-0394-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The targeting and delivery of therapeutic and diagnostic agents to bone tissue presents both a challenge and opportunity. Osteoporosis, Paget's disease, cancer, and bone metastases are all skeletal diseases whose treatment would benefit from new targeted therapeutic strategies. Osteoporosis, in particular, is a very prevalent disease, affecting over one in three women and one in five men in Canada alone with the cost to the healthcare system estimated at over $2.3 billion in 2010. Bone tissue is often considered a rigid structure when in reality there is a process of continuous remodeling that takes place via complex endocrine-regulated cell signaling pathways in addition to the signaling pathways unique to bone tissue. It is these specific boneremodeling processes that provide unique targeting opportunities but also present a number of challenges.
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Affiliation(s)
- Jacqueline Cawthray
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
| | - Ellen Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Kishor Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
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21
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Avram D, Tiseanu C. Thermometry properties of Er, Yb-Gd 2O 2S microparticles: dependence on the excitation mode (cw versus pulsed excitation) and excitation wavelength (980 nm versus 1500 nm). Methods Appl Fluoresc 2018; 6:025004. [PMID: 29199643 DOI: 10.1088/2050-6120/aa9ef9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, we present a first report on the luminescence thermometry properties of Er, Yb doped Gd2O2S microparticles under near infrared up-conversion excitation at 980 and 1500 nm measured in the 280-800 K interval. The thermometry properties are assessed using both cw and ns pulsed excitation as well as tuning the excitation wavelength across Yb and Er absorption profiles. For low cw (300 mW cm-1) and pulsed ns (400 ÷ 550 mW cm-1) excitation modes, no thermal load is observed. At room-temperature (280 K), the maximum relative sensitivity values are comparable under pulsed excitation at 980 and 1500 nm, around ∼0.01 and ∼0.008% K-1, respectively. In addition, a relative intense up-conversion emission at 980 nm under excitation at 1500 nm is measured. Our findings evidence attractive up-conversion and thermometry properties Er, Yb doped Gd2O2S under near-infrared excitation and highlight the need to explore further these properties in the nanoparticulate regime.
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Affiliation(s)
- Daniel Avram
- National Institute for Laser, Plasma and Radiation Physics, PO Box MG-36, RO 76900, Bucharest-Magurele, Romania. University of Bucharest, Faculty of Physics, 405 Atomistilor Street, 077125 Magurele-Ilfov, Romania
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Phospholipase A2-Responsive Phosphate Micelle-Loaded UCNPs for Bioimaging of Prostate Cancer Cells. Sci Rep 2017; 7:16073. [PMID: 29167526 PMCID: PMC5700164 DOI: 10.1038/s41598-017-16136-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/03/2017] [Indexed: 01/12/2023] Open
Abstract
We report the effective synthesis of biocompatible upconversion nanoparticles (UCNP)-loaded phosphate micelles and successful delivery of UCNPs to prostate cancer cells via secreted phospholipase A2 (sPLA-2) enzyme cleavage of the loaded micelles for the first time. The activity of the (sPLA-2) enzyme toward the synthesized micelles was investigated and confirmed by LC-MS. TEM results showed that the micelles have a size distribution of 80 to 150 nm, whereas UCNP-loaded micelles range from 200 to 350 nm, indicating the successful loading of UCNPs. The selective release of UCNPs to prostate cancer cells rather than other cells, specifically cervical cancer cells, was observed and confirmed by a range of bioimaging studies. Moreover, cytotoxicity assays confirmed the biocompatibility of the UCNP-loaded micelles.
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A NIR-responsive up-conversion nanoparticle probe of the NaYF4:Er,Yb type and coated with a molecularly imprinted polymer for fluorometric determination of enrofloxacin. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2387-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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25
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Remarkable fluorescence enhancement of upconversion composite film and its application on mercury sensing. J RARE EARTH 2017. [DOI: 10.1016/s1002-0721(17)60934-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Plasmonic enhancement of the upconversion luminescence in a Yb3+ and Ho3+ co-doped gold-ZnO nanocomposite for use in multimodal imaging. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2222-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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27
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You H, Hua X, Feng L, Sun N, Rui Q, Wang L, Wang M. Competitive immunoassay for imidaclothiz using upconversion nanoparticles and gold nanoparticles as labels. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2097-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Su Q, Feng W, Yang D, Li F. Resonance Energy Transfer in Upconversion Nanoplatforms for Selective Biodetection. Acc Chem Res 2017; 50:32-40. [PMID: 27983801 DOI: 10.1021/acs.accounts.6b00382] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Resonance energy transfer (RET) describes the process that energy is transferred from an excited donor to an acceptor molecule, leading to a reduction in the fluorescence emission intensity of the donor and an increase in that of the acceptor. By this technique, measurements with the good sensitivity can be made about distance within 1 to 10 nm under physiological conditions. For this reason, the RET technique has been widely used in polymer science, biochemistry, and structural biology. Recently, a number of RET systems incorporated with nanoparticles, such as quantum dots, gold nanoparticles, and upconversion nanoparticles, have been developed. These nanocrystals retain their optical superiority and can act as either a donor or a quencher, thereby enhancing the performance of RET systems and providing more opportunities in excitation wavelength selection. Notably, lanthanide-doped upconversion nanophosphors (UCNPs) have attracted considerable attention due to their inherent advantages of large anti-Stoke shifts, long luminescence lifetimes, and absence of autofluorescence under low energy near-infrared (NIR) light excitation. These nanoparticles are promising for the biodetection of various types of analytes. Undoubtedly, the developments of those applications usually rely on resonance energy transfer, which could be regarded as a flexible technology to mediate energy transfer from upconversion phosphor to acceptor for the design of luminescent functional nanoplatforms. Currently, researchers have developed many RET-based upconversion nanosystems (RET-UCNP) that respond to specific changes in the biological environments. Specifically, small organic molecules, biological molecules, metal-organic complexes, or inorganic nanoparticles were carefully selected and bound to the surface of upconversion nanoparticles for the preparation of RET-UCNP nanosystems. Benefiting from the advantage and versatility offered by this technology, the research of RET-based upconversion nanomaterials should have significant implications for advanced biomedical applications. It should be noted that energy transfer in a UCNP based nanosystem is most often related to resonance energy transfer but that reabsorption (and maybe other energy transfer processes) may also play an important role and that more studies regarding the fundamental aspects for energy transfer with UCNPs is necessary. In this Account, we present an overview of recent advances in RET-based upconversion nanocomposites for biodetection with a particular focus on our own work. We have designed a series of upconversion nanoplatforms with remarkably high versatility for different applications. The experience gained from our strategic design and experimental investigations will allow for the construction of next-generation luminescent nanoplatform with marked improvements in their performance. The key aspects of this Account include fundamental principles, design and preparation strategies, biodetection in vitro and in vivo, future opportunities, and challenges of RET-UCNP nanosystems.
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Affiliation(s)
- Qianqian Su
- Department of Chemistry,
State Key Laboratory of Molecular Engineering of Polymers and Institute
of Biomedicine Science, Fudan University, Shanghai 200433, China
| | - Wei Feng
- Department of Chemistry,
State Key Laboratory of Molecular Engineering of Polymers and Institute
of Biomedicine Science, Fudan University, Shanghai 200433, China
| | - Dongpeng Yang
- Department of Chemistry,
State Key Laboratory of Molecular Engineering of Polymers and Institute
of Biomedicine Science, Fudan University, Shanghai 200433, China
| | - Fuyou Li
- Department of Chemistry,
State Key Laboratory of Molecular Engineering of Polymers and Institute
of Biomedicine Science, Fudan University, Shanghai 200433, China
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29
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Upconversion luminescence assay for the detection of the vascular endothelial growth factor, a biomarker for breast cancer. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1965-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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MacLaughlin CM, Ding L, Jin C, Cao P, Siddiqui I, Hwang DM, Chen J, Wilson BC, Zheng G, Hedley DW. Porphysome nanoparticles for enhanced photothermal therapy in a patient-derived orthotopic pancreas xenograft cancer model: a pilot study. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:84002. [PMID: 27552306 DOI: 10.1117/1.jbo.21.8.084002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 08/02/2016] [Indexed: 05/15/2023]
Abstract
Local disease control is a major challenge in pancreatic cancer treatment, because surgical resection of the primary tumor is only possible in a minority of patients and radiotherapy cannot be delivered in curative doses. Despite the promise of photothermal therapy (PTT) for focal ablation of pancreatic tumors, this approach remains underinvestigated. Using photothermal sensitizers in combination with laser light irradiation for PTT can result in more efficient conversion of light energy to heat and improved spatial confinement of thermal destruction to the tumor. Porphysomes are self-assembled nanoparticles composed mainly of pyropheophorbide-conjugated phospholipids, enabling the packing of ∼80,000 porphyrin photosensitizers per particle. The high-density porphyrin loading imparts enhanced photonic properties and enables high-payload tumor delivery. A patient-derived orthotopic pancreas xenograft model was used to evaluate the feasibility of porphysome-enhanced PTT for pancreatic cancer. Biodistribution and tumor accumulation were evaluated using fluorescence intensity measurements from homogenized tissues and imaging of excised organs. Tumor surface temperature was recorded using IR optical imaging during light irradiation to monitor treatment progress. Histological analyses were conducted to determine the extent of PTT thermal damage. These studies may provide insight into the influence of heat-sink effect on thermal therapy dosimetry for well-perfused pancreatic tumors.
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Affiliation(s)
- Christina M MacLaughlin
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, CanadabUniversity of Toronto, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, CanadacPrincess Margaret Hospital, Department of Medical Oncology and Hematology, 610 University Avenue, Toronto, Ontario M5T 2M9, Canada
| | - Lili Ding
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Cheng Jin
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, CanadabUniversity of Toronto, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, CanadadUniversity of Toronto, Department of Pharmaceutical Sciences, 144 College Street, Toronto, Ontario M5T 2M9, Canada
| | - Pingjiang Cao
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Iram Siddiqui
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - David M Hwang
- University Health Network, Department of Pathology, 200 Elizabeth Street, Toronto, Ontario M5G 2C4, Canada
| | - Juan Chen
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, Canada
| | - Brian C Wilson
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, CanadabUniversity of Toronto, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, CanadacPrincess Margaret Hospital, Department of Medical Oncology and Hematology, 610 University Avenue, Toronto, Ontario M5T 2M9, Canada
| | - Gang Zheng
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, CanadabUniversity of Toronto, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, CanadadUniversity of Toronto, Department of Pharmaceutical Sciences, 144 College Street, Toronto, Ontario M5T 2M9, Canada
| | - David W Hedley
- University Health Network, Princess Margaret Cancer Center, 101 College Street, Toronto, Ontario M5G 1L7, CanadabUniversity of Toronto, Department of Medical Biophysics, 101 College Street, Toronto, Ontario M5G 1L7, CanadacPrincess Margaret Hospital, Department of Medical Oncology and Hematology, 610 University Avenue, Toronto, Ontario M5T 2M9, Canada
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31
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Yan C, Zhao H, Perepichka DF, Rosei F. Lanthanide Ion Doped Upconverting Nanoparticles: Synthesis, Structure and Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:3888-3907. [PMID: 27345736 DOI: 10.1002/smll.201601565] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 06/06/2023]
Abstract
Lanthanide doped upconverting nanoparticles (UCNPs) have emerged as a new class of luminescent materials, with major discoveries and overall significant progress during the last decade. Unlike multiphoton absorption in organic dyes or semiconductor quantum dots, lanthanide doped UCNPs involve real intermediate quantum states and convert infrared (IR) into visible light via sequential electronic excitation. The relatively high efficiency of this process even at low radiation flux makes UCNPs particularly attractive for many current and emerging areas of technology. The aim of this article is to highlight several recent advances in this rapidly growing field, emphasizing the relationships between structure and properties of UCNPs. Additionally, various strategies developed for the synthesis of UCNPs with a focus on the various synthetic approaches that yield high-quality monodisperse samples with controlled size, shape and crystalline phase are reviewed. Emerging synthetic approaches towards designed structure to improve the optical and electronic properties of UCNPs are discussed. Finally, recent examples of applications of UCNPs in biomedical and optoelectronics research, giving our own perspectives on future directions and emerging possibilities of the field are described.
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Affiliation(s)
- Chenglin Yan
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
| | - Haiguang Zhao
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University, H3A 0B8, Montreal, QC, Canada
- Center for Self-Assembled Chemical Structures, McGill University, H3A 0B8, Montreal, QC, Canada
| | - Federico Rosei
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
- Center for Self-Assembled Chemical Structures, McGill University, H3A 0B8, Montreal, QC, Canada
- Institute for Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, PR China
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32
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Mitochondria-targeted theranostic nanoparticles for optical sensing of oxygen, photodynamic cancer therapy, and assessment of therapeutic efficacy. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1917-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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33
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Bagheri A, Arandiyan H, Boyer C, Lim M. Lanthanide-Doped Upconversion Nanoparticles: Emerging Intelligent Light-Activated Drug Delivery Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2016; 3:1500437. [PMID: 27818904 PMCID: PMC5069703 DOI: 10.1002/advs.201500437] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 01/20/2016] [Indexed: 05/20/2023]
Abstract
The development of drug delivery systems (DDSs) using near infrared (NIR) light and upconversion nanoparticles (UCNPs) has generated intensive interest over the past five years. These NIR-initiated DDSs not only offer a high degree of spatial and temporal determination of therapeutic release but also provide precise control over the released dosage. Furthermore, these nanoplatforms confer several advantages over conventional light-based DDSs-NIR offers better tissue penetration depth and a reduced risk of cellular photo-damage caused by exposure to light at high-energy wavelengths (e.g., ultraviolet light, <400 nm). The development of DDSs that can be activated by low intensity NIR illumination is highly desirable to avoid exposing living tissues to excessive heat that can limit the in vivo application of these DDSs. This encompasses research in three directions: (i) enhancing the quantum yield of the UCNPs; (ii) incorporation of photo-responsive materials with red-shifted absorptions into the UCNPs; and (iii) tuning the UCNPs excitation wavelength. This review focuses on recent advances in the development of NIR-initiated DDS, with emphasis on the use of photo-responsive compounds and polymeric materials conjugated onto UCNPs. The challenges that limit UCNPs clinical applications, alongside with the aforementioned techniques that have emerged to overcome these limitations, are highlighted.
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Affiliation(s)
- Ali Bagheri
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - Hamidreza Arandiyan
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - Cyrille Boyer
- Center for Advanced Macromolecular Design (CAMD) and Australian Center for Nano Medicine (ACN) School of Chemical Engineering UNSW Australia Sydney NSW 2052 Australia
| | - May Lim
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
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Dai S, Wu S, Duan N, Wang Z. A luminescence resonance energy transfer based aptasensor for the mycotoxin Ochratoxin A using upconversion nanoparticles and gold nanorods. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1820-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Abstract
This article gives an overview of the various kinds of nanoparticles (NPs) that are widely used for purposes of fluorescent imaging, mainly of cells and tissues. Following an introduction and a discussion of merits of fluorescent NPs compared to molecular fluorophores, labels and probes, the article assesses the kinds and specific features of nanomaterials often used in bioimaging. These include fluorescently doped silicas and sol-gels, hydrophilic polymers (hydrogels), hydrophobic organic polymers, semiconducting polymer dots, quantum dots, carbon dots, other carbonaceous nanomaterials, upconversion NPs, noble metal NPs (mainly gold and silver), various other nanomaterials, and dendrimers. Another section covers coatings and methods for surface modification of NPs. Specific examples on the use of nanoparticles in (a) plain fluorescence imaging of cells, (b) targeted imaging, (c) imaging of chemical species, and (d) imaging of temperature are given next. A final section covers aspects of multimodal imaging (such as fluorescence/nmr), imaging combined with drug and gene delivery, or imaging combined with therapy or diagnosis. The electronic supplementary information (ESI) gives specific examples for materials and methods used in imaging, sensing, multimodal imaging and theranostics such as imaging combined with drug delivery or photodynamic therapy. The article contains 273 references in the main part, and 157 references in the ESI.
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Affiliation(s)
- Otto S Wolfbeis
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040 Regensburg, Germany.
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36
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Wang S, Bi A, Zeng W, Cheng Z. Upconversion nanocomposites for photo-based cancer theranostics. J Mater Chem B 2016; 4:5331-5348. [DOI: 10.1039/c6tb00709k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Upconversion nanoparticles (UCNPs) are able to convert long wavelength excitation light into high energy ultraviolet (UV) or visible emissions, and they have attracted significant attention because of their distinct photochemical properties including sharp emission bands, low autofluorescence, high tissue penetration depth and minimal photodamage to tissues.
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Affiliation(s)
- Shuailiang Wang
- School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Anyao Bi
- School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Wenbin Zeng
- School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Zhen Cheng
- Molecular Imaging Program at Stanford (MIPS)
- Canary Center at Stanford for Cancer Early Detection
- Department of Radiology and Bio-X Program
- School of Medicine
- Stanford University
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37
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Jin B, Lin M, Zong Y, Wan M, Xu F, Duan Z, Lu T. Microbubble embedded with upconversion nanoparticles as a bimodal contrast agent for fluorescence and ultrasound imaging. NANOTECHNOLOGY 2015; 26:345601. [PMID: 26243035 DOI: 10.1088/0957-4484/26/34/345601] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Bimodal imaging offers additional imaging signal thus finds wide spread application in clinical diagnostic imaging. Fluorescence/ultrasound bimodal imaging contrast agent using fluorescent dyes or quantum dots for fluorescence signal has emerged as a promising method, which however requires visible light or UV irradiation resulting in photobleaching, photo blinking,auto-fluorescence and limited tissue penetration depth. To surmount these problems, we developed a novel bimodal contrast agent using layer-by-layer assembly of up conversion nanoparticles onto the surface of microbubbles. The resulting microbubbles with average size of 2 μm provide enhanced ultrasound echo for ultrasound imaging and upconversion emission upon near infrared irradiation for fluorescence imaging. The developed bimodal contrast agent holds great potential to be applied in ultrasound target technique for targeted diseases diagnostics and therapy.
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Realizing up-conversion fluorescence tuning in lanthanide-doped nanocrystals by femtosecond pulse shaping method. Sci Rep 2015; 5:13337. [PMID: 26290391 PMCID: PMC4542159 DOI: 10.1038/srep13337] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 07/22/2015] [Indexed: 12/03/2022] Open
Abstract
The ability to tune color output of nanomaterials is very important for their applications in laser, optoelectronic device, color display and multiplexed biolabeling. Here we first propose a femtosecond pulse shaping technique to realize the up-conversion fluorescence tuning in lanthanide-doped nanocrystals dispersed in the glass. The multiple subpulse formation by a square phase modulation can create different excitation pathways for various up-conversion fluorescence generations. By properly controlling these excitation pathways, the multicolor up-conversion fluorescence can be finely tuned. This color tuning by the femtosecond pulse shaping technique is realized in single material by single-color laser field, which is highly desirable for further applications of the lanthanide-doped nanocrystals. This femtosecond pulse shaping technique opens an opportunity to tune the color output in the lanthanide-doped nanocrystals, which may bring a new revolution in the control of luminescence properties of nanomaterials.
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39
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Valta T, Horn C. Upconverting phosphors as an amplifier of a colorimetric signal in dry chemistry test strips for enzymatic measurement of glucose. Methods Appl Fluoresc 2015; 3:035001. [PMID: 29148499 DOI: 10.1088/2050-6120/3/3/035001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We describe the use of upconverting phosphors (UCPs) as an amplifier of the colorimetric signal in enzymatic dry chemistry test strips for the determination of glucose. The indicator compound used in the strips attenuated both the emission and excitation wavelengths of the upconverting phosphors, thus taking advantage of the nonlinear relationship between the excitation and emission of these particles. By monitoring the emission of the UCPs under 978 nm excitation, we were able to obtain significantly higher signal response (a steeper calibration curve) from the colorimetric assay compared to a reflectance measurement. The limit of detection of the developed method was 2.1-fold lower than the reflectance-based reference method. The new method was able to determine glucose from a sample of water in the range of 5.7 μM to 22 mM, which covers the typical blood glucose range in newborns and adults. In low analyte concentrations we obtained up to 3-fold improvement in the slope of the assay calibration curve. This difference decreased with increasing analyte concentration and the effect was diminished by the highest glucose concentration. However, the analytical sensitivity (the ratio of slope and standard deviation) was practically identical between the two methods because of the higher deviation in the UCP emission signal.
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Affiliation(s)
- Timo Valta
- Roche Diagnostics GmbH, 68305 Mannheim, Germany. Department of Biotechnology, University of Turku, 20520 Turku, Finland
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Lai J, Shah BP, Zhang Y, Yang L, Lee KB. Real-Time Monitoring of ATP-Responsive Drug Release Using Mesoporous-Silica-Coated Multicolor Upconversion Nanoparticles. ACS NANO 2015; 9:5234-45. [PMID: 25859611 PMCID: PMC5808884 DOI: 10.1021/acsnano.5b00641] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Stimuli-responsive drug delivery vehicles have garnered immense interest in recent years due to unparalleled progress made in material science and nanomedicine. However, the development of stimuli-responsive devices with integrated real-time monitoring capabilities is still in its nascent stage because of the limitations of imaging modalities. In this paper, we describe the development of a polypeptide-wrapped mesoporous-silica-coated multicolor upconversion nanoparticle (UCNP@MSN) as an adenosine triphosphate (ATP)-responsive drug delivery system (DDS) for long-term tracking and real-time monitoring of drug release. Our UCNP@MSN with multiple emission peaks in UV-NIR wavelength range was functionalized with zinc-dipicolylamine analogue (TDPA-Zn(2+)) on its exterior surface and loaded with small-molecule drugs like chemotherapeutics in interior mesopores. The drugs remained entrapped within the UCNP-MSNs when the nanoparticles were wrapped with a compact branched polypeptide, poly(Asp-Lys)-b-Asp, because of multivalent interactions between Asp moieties present in the polypeptide and the TDPA-Zn(2+) complex present on the surface of UCNP-MSNs. This led to luminescence resonance energy transfer (LRET) from the UCNPs to the entrapped drugs, which typically have absorption in UV-visible range, ultimately resulting in quenching of UCNP emission in UV-visible range while retaining their strong NIR emission. Addition of ATP led to a competitive displacement of the surface bound polypeptide by ATP due to its higher affinity to TDPA-Zn(2+), which led to the release of the entrapped drugs and subsequent elimination of LRET. Monitoring of such ATP-triggered ratiometric changes in LRET allowed us to monitor the release of the entrapped drugs in real-time. Given these results, we envision that our proposed UCNP@MSN-polypeptide hybrid nanoparticle has great potential for stimuli-responsive drug delivery as well as for monitoring biochemical changes taking place in live cancer and stem cells.
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41
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Multifunctional hydroxyapatite nanoparticles for drug delivery and multimodal molecular imaging. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1504-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Folic acid-conjugated chromium(III) doped nanoparticles consisting of mixed oxides of zinc, gallium and tin, and possessing near-infrared and long persistent phosphorescence for targeted imaging of cancer cells. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1486-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Chitosan conjugation: A facile approach to enhance the cell viability of LaF 3 :Yb,Er upconverting nanotransducers in human breast cancer cells. Carbohydr Polym 2015; 121:302-8. [DOI: 10.1016/j.carbpol.2014.12.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/29/2014] [Accepted: 12/02/2014] [Indexed: 11/23/2022]
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44
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Ge X, Sun L, Dang S, Liu J, Xu Y, Wei Z, Shi L, Zhang H. Mesoporous upconversion nanoparticles modified with a Tb(III) complex to display both green upconversion and downconversion luminescence for in vitro bioimaging and sensing of temperature. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1481-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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45
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Hakmeh N, Chlique C, Merdrignac-Conanec O, Fan B, Cheviré F, Zhang X, Fan X, Qiao X. Combustion synthesis and up-conversion luminescence of La2O2S:Er3+,Yb3+ nanophosphors. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.02.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Yang D, Ma P, Hou Z, Cheng Z, Li C, Lin J. Current advances in lanthanide ion (Ln3+)-based upconversion nanomaterials for drug delivery. Chem Soc Rev 2015; 44:1416-48. [DOI: 10.1039/c4cs00155a] [Citation(s) in RCA: 622] [Impact Index Per Article: 69.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review mainly focuses on the recent advances in various chemical syntheses of Ln3+-based upconversion nanomaterials, with special emphasis on their application in stimuli-response controlled drug release and subsequent therapy.
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Affiliation(s)
- Dongmei Yang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Ping'an Ma
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Zhiyou Hou
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Ziyong Cheng
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Chunxia Li
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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47
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Zheng W, Huang P, Tu D, Ma E, Zhu H, Chen X. Lanthanide-doped upconversion nano-bioprobes: electronic structures, optical properties, and biodetection. Chem Soc Rev 2015; 44:1379-415. [DOI: 10.1039/c4cs00178h] [Citation(s) in RCA: 653] [Impact Index Per Article: 72.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The latest advances in lanthanide-doped upconversion nanoparticles were comprehensively reviewed, which covers from their fundamental photophysics to biodetection.
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Affiliation(s)
- Wei Zheng
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Ping Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Datao Tu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - En Ma
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Haomiao Zhu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Xueyuan Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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48
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Near-IR Triggered Photon Upconversion. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/b978-0-444-63481-8.00273-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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49
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Tsang MK, Bai G, Hao J. Stimuli responsive upconversion luminescence nanomaterials and films for various applications. Chem Soc Rev 2015; 44:1585-607. [DOI: 10.1039/c4cs00171k] [Citation(s) in RCA: 292] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review highlights recent advances in upconversion luminescence materials in response to various stimuli for a broad spectrum of applications.
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Affiliation(s)
- Ming-Kiu Tsang
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
| | - Gongxun Bai
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
| | - Jianhua Hao
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
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50
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Syamchand SS, Priya S, Sony G. Hydroxyapatite nanocrystals dually doped with fluorescent and paramagnetic labels for bimodal (luminomagnetic) cell imaging. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1421-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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