Perspectives for Upconverting Nanoparticles

Upconversion and Anti-Stokes Processes with f and d Ions in Solids

Auzel, F. (2004) · Chemical Reviews · doi:10.1021/cr020357g · Cited by 5,098

Upconverting Nanoparticles

Haase, M., & Schäfer, H. (2011) · Angewandte Chemie International Edition · doi:10.1002/anie.201005159 · Cited by 2,503

Power dependence of upconversion luminescence in lanthanide and transition-metal-ion systems

Pollnau, M., Gamelin, D. R., Lüthi, S. R., Güdel, H. U., & Hehlen, M. P. (2000) · Physical Review B · doi:10.1103/physrevb.61.3337 · Cited by 2,197

Broadband dye-sensitized upconversion of near-infrared light

Zou, W., Visser, C., Maduro, J. A., Pshenichnikov, M. S., & Hummelen, J. C. (2012) · Nature Photonics · doi:10.1038/nphoton.2012.158 · Cited by 999

A Generalized Ligand-Exchange Strategy Enabling Sequential Surface Functionalization of Colloidal Nanocrystals

Dong, A., Ye, X., Chen, J., Kang, Y., Gordon, T., Kikkawa, J. M., & Murray, C. B. (2011) · Journal of the American Chemical Society · doi:10.1021/ja108948z · Cited by 907

Absolute quantum yield measurements of colloidal NaYF4: Er3+, Yb3+ upconverting nanoparticles

Boyer, J.-C., & van Veggel, F. C. J. M. (2010) · Nanoscale · doi:10.1039/c0nr00253d · Cited by 876

Sub-10 nm Hexagonal Lanthanide-Doped NaLuF4 Upconversion Nanocrystals for Sensitive Bioimaging in Vivo

Liu, Q., Sun, Y., Yang, T., Feng, W., Li, C., & Li, F. (2011) · Journal of the American Chemical Society · doi:10.1021/ja207078s · Cited by 798

Tunable lifetime multiplexing using luminescent nanocrystals

Lu, Y., Zhao, J., Zhang, R., Liu, Y., Liu, D., Goldys, E. M., Yang, X., Xi, P., Sunna, A., Lu, J., et al. (2014) · Nature Photonics · doi:10.1038/nphoton.2013.322 · Cited by 783

(α-NaYbF4:Tm3+)/CaF2 Core/Shell Nanoparticles with Efficient Near-Infrared to Near-Infrared Upconversion for High-Contrast Deep Tissue Bioimaging

Chen, G., Shen, J., Ohulchanskyy, T. Y., Patel, N. J., Kutikov, A., Li, Z., Song, J., Pandey, R. K., Ågren, H., Prasad, P. N., et al. (2012) · ACS Nano · doi:10.1021/nn302972r · Cited by 720

Upconverting nanoparticles: assessing the toxicity

Gnach, A., Lipinski, T., Bednarkiewicz, A., Rybka, J., & Capobianco, J. A. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00177j · Cited by 652

Engineering bright sub-10-nm upconverting nanocrystals for single-molecule imaging

Gargas, D. J., Chan, E. M., Ostrowski, A. D., Aloni, S., Altoe, M. V. P., Barnard, E. S., Sanii, B., Urban, J. J., Milliron, D. J., Cohen, B. E., et al. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.29 · Cited by 584

Using 915 nm Laser Excited Tm3+/Er3+/Ho3+-Doped NaYbF4 Upconversion Nanoparticles for in Vitro and Deeper in Vivo Bioimaging without Overheating Irradiation

Zhan, Q., Qian, J., Liang, H., Somesfalean, G., Wang, D., He, S., Zhang, Z., & Andersson-Engels, S. (2011) · ACS Nano · doi:10.1021/nn200110j · Cited by 523

Energy-Cascaded Upconversion in an Organic Dye-Sensitized Core/Shell Fluoride Nanocrystal

Chen, G., Damasco, J., Qiu, H., Shao, W., Ohulchanskyy, T. Y., Valiev, R. R., Wu, X., Han, G., Wang, Y., Yang, C., et al. (2015) · Nano Letters · doi:10.1021/acs.nanolett.5b02830 · Cited by 412

Controlled Synthesis and Single-Particle Imaging of Bright, Sub-10 nm Lanthanide-Doped Upconverting Nanocrystals

Ostrowski, A. D., Chan, E. M., Gargas, D. J., Katz, E. M., Han, G., Schuck, P. J., Milliron, D. J., & Cohen, B. E. (2012) · ACS Nano · doi:10.1021/nn3000737 · Cited by 338

Precise Tuning of Surface Quenching for Luminescence Enhancement in Core–Shell Lanthanide-Doped Nanocrystals

Fischer, S., Bronstein, N. D., Swabeck, J. K., Chan, E. M., & Alivisatos, A. P. (2016) · Nano Letters · doi:10.1021/acs.nanolett.6b03683 · Cited by 334

Successive Layer-by-Layer Strategy for Multi-Shell Epitaxial Growth: Shell Thickness and Doping Position Dependence in Upconverting Optical Properties

Li, X., Shen, D., Yang, J., Yao, C., Che, R., Zhang, F., & Zhao, D. (2013) · Chemistry of Materials · doi:10.1021/cm3033498 · Cited by 299

Water dispersible upconverting nanoparticles: effects of surface modification on their luminescence and colloidal stability

Wilhelm, S., Kaiser, M., Würth, C., Heiland, J., Carrillo-Carrion, C., Muhr, V., Wolfbeis, O. S., Parak, W. J., Resch-Genger, U., & Hirsch, T. (2015) · Nanoscale · doi:10.1039/c4nr05954a · Cited by 276

Upconversion Nanoparticles: From Hydrophobic to Hydrophilic Surfaces

Muhr, V., Wilhelm, S., Hirsch, T., & Wolfbeis, O. S. (2014) · Accounts of Chemical Research · doi:10.1021/ar500253g · Cited by 272

Particle-Size-Dependent Förster Resonance Energy Transfer from Upconversion Nanoparticles to Organic Dyes

Muhr, V., Würth, C., Kraft, M., Buchner, M., Baeumner, A. J., Resch-Genger, U., & Hirsch, T. (2017) · Analytical Chemistry · doi:10.1021/acs.analchem.6b04662 · Cited by 203

Synthesis of 10 nm β‐NaYF4:Yb,Er/NaYF4 Core/Shell Upconversion Nanocrystals with 5 nm Particle Cores

Rinkel, T., Raj, A. N., Dühnen, S., & Haase, M. (2016) · Angewandte Chemie International Edition · doi:10.1002/anie.201508838 · Cited by 160

High-Resolution Fluorescence Diffuse Optical Tomography Developed with Nonlinear Upconverting Nanoparticles

Xu, C. T., Svenmarker, P., Liu, H., Wu, X. J., Messing, M. E., Wallenberg, R., & Andersson‐Engels, S. (2012) · ACS Nano · doi:10.1021/nn3015807 · Cited by 134

Efficient Broadband Upconversion of Near‐Infrared Light in Dye‐Sensitized Core/Shell Nanocrystals

Chen, G., Shao, W., Valiev, R. R., Ohulchanskyy, T. Y., He, G. S., Ågren, H., & Prasad, P. N. (2016) · Advanced Optical Materials · doi:10.1002/adom.201600556 · Cited by 121

Highly efficient NIR to NIR and VIS upconversion in Er3+ and Yb3+ doped in M2O2S (M = Gd, La, Y)

Pokhrel, M., Kumar, G. A., & Sardar, D. K. (2013) · Journal of Materials Chemistry A · doi:10.1039/c3ta12205k · Cited by 115

Emerging ≈800 nm Excited Lanthanide‐Doped Upconversion Nanoparticles

Xie, X., Li, Z., Zhang, Y., Guo, S., Pendharkar, A. I., Lü, M., Huang, L., Huang, W., & Han, G. (2016) · Small · doi:10.1002/smll.201602843 · Cited by 108

Ostwald-ripening and particle size focussing of sub-10 nm NaYF 4 upconversion nanocrystals

Rinkel, T., Nordmann, J., Raj, A. N., & Haase, M. (2014) · Nanoscale · doi:10.1039/c4nr03833a · Cited by 105

Practical intravital two‐photon microscopy for immunological research: faster, brighter, deeper

Phan, T. G., & Bullen, A. (2010) · Immunology and Cell Biology · doi:10.1038/icb.2009.116 · Cited by 101

Perspectives and challenges of photon-upconversion nanoparticles - Part I: routes to brighter particles and quantitative spectroscopic studies

Resch‐Genger, U., & Gorris, H. H. (2017) · Analytical and Bioanalytical Chemistry · doi:10.1007/s00216-017-0499-z · Cited by 101

Enhancing Upconversion Fluorescence with a Natural Bio-microlens

Li, Y., Liu, X., Yang, X., Lei, H., Zhang, Y., & Li, B. (2017) · ACS Nano · doi:10.1021/acsnano.7b04420 · Cited by 101

Spectroscopic Characterization of Coumarin-Stained Beads: Quantification of the Number of Fluorophores Per Particle with Solid-State19F-NMR and Measurement of Absolute Fluorescence Quantum Yields

Huber, A. L., Behnke, T., Würth, C., Jaeger, C., & Resch‐Genger, U. (2012) · Analytical Chemistry · doi:10.1021/ac3000682 · Cited by 35

Advances in highly doped upconversion nanoparticles

Wen, S., Zhou, J., Zheng, K., Bednarkiewicz, A., Liu, X., & Jin, D. (2018) · Nature Communications · doi:10.1038/s41467-018-04813-5 · Cited by 1,116

Application of Förster Resonance Energy Transfer (FRET) technique to elucidate intracellular and In Vivo biofate of nanomedicines

Chen, T., He, B., Tao, J., He, Y., Deng, H., Wang, X., & Zheng, Y. (2019) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2019.04.009 · Cited by 186

Nanoparticle Interactions with the Tumor Microenvironment

Huai, Y., Hossen, M. N., Wilhelm, S., Bhattacharya, R., & Mukherjee, P. (2019) · Bioconjugate Chemistry · doi:10.1021/acs.bioconjchem.9b00448 · Cited by 113