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Total 3421 results found since Jan 2013.
Clinically Translatable Transcrocetin Delivery Platform for Correction of Tumor Hypoxia and Enhancement of Radiation Therapy Effects (Small 12/2023)
Enhancement of Radiation Therapy EffectsLiposome-based nanoparticles encapsulating transcrocetin (NP TSC) act as therapeutic radiosensitizer. In article number2205961, Alexandre Detappe and co-workers perform a study on mouse to confirm their ability to reoxygenate triple negative breast cancer tumors for up to 48h. This reoxygenation effect leads to normalisation of the vasculature which enhances the radiation therapy effects.
Source: Small - March 23, 2023 Category: Nanotechnology Authors: Marie ‐Charlotte Diringer,
Pierre Coliat,
Clélia Mathieu,
Nina Laurent,
Carole Mura,
Mainak Banerjee,
Chen Zhu,
Anna Grabowska,
Alison Ritchie,
Philip Clarke,
Alexandre Bernard,
Claire Vit,
Hélène Burckel,
Georges Noel,
Peter Harvey,
X Tags: Frontispiece Source Type: research
Templated Out ‐of‐Equilibrium Self‐Assembly of Branched Au Nanoshells (Small 12/2023)
Branched Au NanoshellsOut-of-equilibrium self-assembly of metal nanoparticles achieving 3D structures with controlled morphology is still rare. In article number2206712, Claudia Pigliacelli, Pierangelo Metrangolo, and co-workers adopt a peptide-gold superstructure as template to control the out-of-equilibrium self-assembly of Au nanoparticles, obtaining a transient 3D branched Au-nanoshell stabilized by surfactant. The nanoshell dismantles upon concentration gradient equilibration, leading to disassembly and regression to the template.
Source: Small - March 23, 2023 Category: Nanotechnology Authors: Alessandro Marchetti,
Alessandro Gori,
Anna Maria Ferretti,
Daniel Arenas Esteban,
Sara Bals,
Claudia Pigliacelli,
Pierangelo Metrangolo Tags: Inside Front Cover Source Type: research
Ultra ‐Small YPO4‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%
The ultra-small YPO4-YAG:Ce nanocomposite phosphor particles having an exceptional quantum yield (QY)-to-size performance with an QY up to 53% while maintaining the particle size ≈10 nm have been synthesized. Distribution of P/extra Y entities played un essential role on the optic property and morphology of the material. AbstractSynthesis of high quality colloidal Cerium(III) doped yttrium aluminum garnet (Y3Al5O12:Ce3+, “YAG:Ce”) nanoparticles (NPs) meeting simultaneously both ultra-small size and high photoluminescence (PL) performance is challenging, as generally a particle size/PL trade-off has been observed for...
Source: Small - March 23, 2023 Category: Nanotechnology Authors: Yige Yan,
Adel Mesbah,
Lhoussain Khrouz,
Corinne Bouillet,
Chantal Lorentz,
Nicholas Blanchard,
Anne C. Berends,
Marie Anne van de Haar,
Fr édéric Lerouge,
Michael R. Krames,
Ovidiu Ersen,
Frédéric Chaput,
Stephane Parola Tags: Research Article Source Type: research
Synthesis of Bitten Gold Nanoparticles with Single ‐Particle Chiroptical Responses
In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses.
Source: Small - March 23, 2023 Category: Nanotechnology Authors: Han Zhang,
Yang Chen,
Ka Kit Chui,
Jiapeng Zheng,
Yicong Ma,
Danjun Liu,
Zhifeng Huang,
Dangyuan Lei,
Jianfang Wang Tags: Research Article Source Type: research
Genesis of Active Pt/CeO2 Catalyst for Dry Reforming of Methane by Reduction and Aggregation of Isolated Platinum Atoms into Clusters
In-operando spectroscopy experiments and density functional theory (DFT) analysis provide evidence that small clusters of metals are optimal catalysts for methane conversion, and that further downsizing of metal catalysts to atomic dispersion leads to loss of catalytic activity. AbstractAtomically dispersed metal catalysts offer the advantages of efficient metal utilization and high selectivities for reactions of technological importance. Such catalysts have been suggested to be strong candidates for dry reforming of methane (DRM), offering prospects of high selectivity for synthesis gas without coke formation, which requi...
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Sonali Das,
Uzma Anjum,
Kang Hui Lim,
Qian He,
Adam S. Hoffman,
Simon R. Bare,
Sergey M. Kozlov,
Bruce C. Gates,
Sibudjing Kawi Tags: Research Article Source Type: research
NIR ‐II Imaging‐Guided Mitochondrial‐Targeting Organic Nanoparticles for Multimodal Synergistic Tumor Therapy
NIR-II imaging-guided miyochondrial-targeting FE-T NPs were developed for multimodal synergistic tumor therapy.FE-T NPs consisted of GSH-responsive copolymer DSPE-SS-PEG-COOH and organic mitochondrial-targeting photosensitizer FE-T. FE-T NPs exhibit excellent NIR-II imaging and selective killing of tumor cells after 808 nm laser irradiation.The ratio nally designed FE-T NPs with precise mitochondrial-targeting and phototherapy amplification,provide a promising strategy for tumor therapy. AbstractEffectively interfering energy metabolism in tumor cells and simultaneously activating the in vivo immune system to perform im...
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Sha Yang,
Bin Sun,
Fen Liu,
Na Li,
Minghui Wang,
Peixian Wu,
Gui ‐long Wu,
Huilong Fang,
Yuxuan He,
Wei Zhou,
Hao Xiao,
Xiaofeng Tan,
Li Tang,
Shoujun Zhu,
Qinglai Yang Tags: Research Article Source Type: research
Learning and Predicting Photonic Responses of Plasmonic Nanoparticle Assemblies via Dual Variational Autoencoders
The application of machine learning is demonstrated for rapid and accurate extraction of plasmonic particles cluster geometries from hyperspectral image data via a dual variational autoencoder (dual-VAE). In this approach, the information is shared between the latent spaces of two VAEs acting on the particle shape data and spectral data, respectively, but enforcing a common encoding on the shape-spectra pairs. AbstractThe application of machine learning is demonstrated for rapid and accurate extraction of plasmonic particles cluster geometries from hyperspectral image data via a dual variational autoencoder (dual-VAE). In ...
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Muammer Y. Yaman,
Sergei V. Kalinin,
Kathryn N. Guye,
David S. Ginger,
Maxim Ziatdinov Tags: Research Article Source Type: research
An Ultra ‐Stable Electrode‐Solid Electrolyte Composite for High‐Performance All‐Solid‐State Li‐Ion Batteries
The fabrication of an ultra-stable electrode-solid electrolyte composite for all-solid-state Li-ion battery enabled by the homogeneous coverage of ultrathin Mg(BH4)2 layers on the surface of each MgH2 nanoparticle. The initial discharge process of Mg(BH4)2 layers results in uniform coverage of MgH2 nanoparticle with both LiBH4 as the solid electrolyte and Li2B6 with even higher Li ion conductivity than LiBH4. AbstractThe low ionic and electronic conductivity between current solid electrolytes and high-capacity anodes limits the long-term cycling performance of all-solid-state lithium-ion batteries (ASSLIBs). Herein, this w...
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Yuqin Huang,
Panyu Gao,
Tengfei Zhang,
Xiang Zhang,
Guanglin Xia,
Fang Fang,
Dalin Sun,
Zaiping Guo,
Xuebin Yu Tags: Research Article Source Type: research
An Artificial Miniaturized Peroxidase for Signal Amplification in Lateral Flow Immunoassays
This study represents a significant proof-of-concept for the development of more sensitive LFi As, for different analytes, based on properly designed artificial metalloenzymes.
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Emilia Renzi,
Andrew Piper,
Flavia Nastri,
Arben Merko çi,
Angela Lombardi Tags: Research Article Source Type: research
Synthesis and Application of Fluorescent Polymer Micro ‐ and Nanoparticles
This review article summarizes the recent progress in the synthesis of fluorescent polymer micro/nanoparticles, including the strategies based on polymerization and the strategies based on preformed polymers. The applications of fluorescent polymer particles in anticounterfeiting, chemical sensing, and biomedicine are discussed. Challenges and perspectives for the future development in fluorescent polymer particles are proposed. AbstractFluorescent polymer particles have witnessed an increasing interest in recent years, owing to their fascinating physicochemical properties as well as wide-ranging applications. In this revi...
Source: Small - March 21, 2023 Category: Nanotechnology Authors: Hai Zhong,
Biao Zhao,
Jianping Deng Tags: Review Source Type: research
Synergistically Achieving Superior Sodium Storage of Metal Selenides by Constructing N ‐Doped Carbon Foams and Utilizing Cu‐Driven Replacement Reaction
Superior sodium storage performance of metal selenides is realized by constructing 3D interconnected N-doped carbon foams and simultaneously utilizing Cu-driven replacement reaction. The former can facilitate rapid electron and ion transport kinetics while the latter can efficiently inhibit the shuttle effect of polyselenides, thus enabling excellent rate capability and cycling stability. AbstractMetal selenides are considered as one of the most promising anode materials for Na-ion batteries owing to high specific capacity and relatively higher electronic conductivity compared with metal sulfides or oxides. However, such a...
Source: Small - March 20, 2023 Category: Nanotechnology Authors: Chao Zhu,
Tao Long,
Bin Feng,
Chunyang Wu,
Qinqin Yu,
Yuan ‐Li Ding Tags: Research Article Source Type: research
Tailor ‐Made Autophagy Cascade Amplification Polymeric Nanoparticles for Enhanced Tumor Immunotherapy
Tailor-made polymeric nanoparticles with the function of autophagy cascade amplification are constructed due to the codelivery of autophagy inducer STF-62247 and antitumor drug epirubicin, so that it can promote immunogenic cell death by the enhancement of autophagy for the best tumor immunotherapy effect. AbstractChemotherapeutics can induce immunogenic cell death (ICD) by triggering autophagy and mediate antitumor immunotherapy. However, using chemotherapeutics alone can only cause mild cell-protective autophagy and be incapable of inducing sufficient ICD efficacy. The participation of autophagy inducer is competent to e...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Xuehua Long,
Huiqi Wang,
Jianqin Yan,
Yifei Li,
Xue Dong,
Sijia Tian,
Yong Sun,
Kui Luo,
Bin He,
Yan Liang Tags: Research Article Source Type: research
Scalable Manufacturing of Environmentally Stable All ‐Solid‐State Plant Protein‐Based Supercapacitors with Optimal Balance of Capacitive Performance and Mechanically Robust
Herein, a mechanically robust, fatigue-resistance, and degradable film biomaterial has been fabricated in a green and scalable way for plastic substitute. Furthermore, the film material combines by stacking-up and hot-pressing techniques to construct an ordered, dense bulk material supercapacitor, which shows an ultrahigh energy density of 25.8 Wh kg−1 and high dielectric constant across a broad temperature range. AbstractThe development of advanced biomaterial with mechanically robust and high energy density is critical for flexible electronics, such as batteries and supercapacitors. Plant proteins are ideal candidat...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Shuaicheng Jiang,
Yanqiang Wei,
Xiaona Li,
Sheldon Q. Shi,
Dan Tian,
Zhen Fang,
Jianzhang Li Tags: Research Article Source Type: research
Self ‐Assembled Tetratic Crystals by Orthogonal Colloidal Force
A shape self-recognition route is presented, which can control both the position and the orientation of particles during self-assembly by directional colloidal forces. An unusual but very challenging open superstructure —tetratic crystal (TC)—is achieved. Using the finite difference time domain method, binary TCs with intriguing photonic crystal properties of modulating the polarization state of lights are demonstrated. AbstractBonding simple building blocks to create crystalline materials with design has been sophisticated in the molecular world, but this is still very challenging for anisotropic nanoparticles or coll...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Shanshan Li,
Jingwen He,
Shuoyuan Qiao,
Xinghua Zhang,
Bing Liu Tags: Research Article Source Type: research
Carbon Dots: Classically Defined versus Organic Hybrids on Shared Properties, Divergences, and Myths
Carbon dots are originally found and defined as small carbon nanoparticles with surface passivation via organic functionalization. A more popular approach to materialize the definition is the creation of nanocarbons by thermal carbonization of organic precursors. Highlighted in this perspective is an effort on bridging different dot samples in the context of the classical definition on carbon dots. AbstractCarbon dots are defined as small carbon nanoparticles with effective surface passivation via organic functionalization. The definition is literally a description of what carbon dots are originally found for the functiona...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Weixiong Liang,
Sumit Kumar Sonkar,
Deepika Saini,
Kirkland Sheriff,
Buta Singh,
Liju Yang,
Ping Wang,
Ya ‐Ping Sun Tags: Perspective Source Type: research
