Results 111 to 120 of about 22,469 (293)
Cascade upconversion: a strategy enabling four-photon lithography in weak light intensity
Nature CommunicationsMultiphoton lithography offers the minimum feature size available in submicron scale true 3D printing, but excessive femtosecond laser intensity prevents it from leading to higher photon counts.
Shishuo Li +4 more
doaj +1 more source
Bridging the translational gap in clinical nanomedicine: From rational design to clinical reality
BMEMat, EarlyView.Nanotechnology offers a multi‐faceted approach to modern healthcare, encompassing high‐sensitivity diagnostic imaging, innovative vaccine delivery, and targeted therapeutics. This review explores how these nanomedicine applications address critical challenges in cancer recurrence and the treatment of neurologic and respiratory diseases to combat rising
Ahmed H. Ghonaim +9 more
wiley +1 more source
Tuning NaYF4 Nanoparticles through Alkaline Earth Doping
Nanomaterials, 2013 Phase and size of lanthanide-doped nanoparticles are the most important characteristics that dictate optical properties of these nanoparticles and affect their technological applications.
Feng Wang, Xian Chen, Dengfeng Peng
doaj +1 more source
On the decay time of upconversion luminescence
Nanoscale, 2019 Numerical simulations based on rate-equation models were performed to investigate how the upconversion luminescence decay is affected by the lifetimes of intermediate states, energy transfer, and cross-relaxation processes.
Jan Bergstrand +9 more
openaire +4 more sources
BMEMat, EarlyView.Oral microbial homeostasis, a dynamic host‐microbe balance, is vital in infectious diseases. Conventional antibiotics often disrupt this homeostasis, spurring interest in nanomaterials for oral microbial homeostasis rebalancing. This review outlines nanomaterial strategies across three ecological levels (population/community, ecosystem, and cross ...
Chen Hu +10 more
wiley +1 more source
Bright upconversion over extended temperatures enabled by an organic surface layer
Nature CommunicationsLanthanide-doped nanocrystals are promising for photon frequency upconversion with substantial spectrum tunability. However, the utilization of the upconversion process has been constrained by low luminescence efficiency, which may further attenuate at ...
Hao Suo +11 more
doaj +1 more source
, 2016 Yadong Xing, Luoyuan Li, Xicheng Ai, Limin Fu Department of Chemistry, Renmin University of China, Beijing, People’s Republic of China Abstract: In this study, we developed a nanosystem based on upconversion nanoparticles (UCNPs) coated with a ...
Fu LM, Ai XC, Xing YD, Li LY
core
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A deep eutectic solvent (ChCl/pTSA) platform enables integrated solvent, catalyst, and dopant functions, producing sulfur‐doped carbon quantum dots with a high sp2‐C content (82.8%) and a quantum yield of 56.9%. When combined with TiO2, the CQDs form TiOC and TiOS interfacial bridges, achieving 97.3% tetracycline photodegradation with excellent ...
Xinhang Li +4 more
wiley +1 more source
JUDD-OFELT ANALYSIS OF Tb3+ AND UPCONVERSION STUDY IN Yb3+-Tb3+ CO-DOPED CALIBO GLASSES
Química NovaWe report on the study of the spectroscopic properties in Ytterbium-Terbium (Yb3+-Tb3+) co-doped calcium lithium borate (CaLiBO) glasses, with the study’s focus being on the upconversion process.
Idelma A. A. Terra +4 more
doaj +1 more source
Revolutionizing Healthcare With Paper‐Based Nucleic Acid Testing
Exploration, EarlyView.This work summarizes strategies to enhance paper‐based devices for nucleic acid testing. Key approaches include optimizing paper platforms, improving nucleic acid amplification, and refining labeling/signaling methods. These advancements aim to boost sensitivity, speed, and usability, making paper‐based diagnostics more effective for point‐of‐care ...
Hong Zhang +8 more
wiley +1 more source