journal
https://read.qxmd.com/read/38877988/-in-vitro-toxicity-and-modeling-reveal-nanoplastic-effects-on-marine-bivalves
#1
JOURNAL ARTICLE
Yanfei Zhou, Xiao-Xia Zhou, Hao Jiang, Wenzhi Liu, Fengyuan Chen, Jorge L Gardea-Torresdey, Bing Yan
Nanoplastics (NPs) represent a growing concern for global environmental health, particularly in marine ecosystems where they predominantly accumulate. The impact of NPs on marine benthic organisms, such as bivalves, raises critical questions regarding ecological integrity and food safety. Traditional methods for assessing NP toxicity are often limited by their time-intensive nature and ethical considerations. Herein, we explore the toxicological effects of NPs on the marine bivalve Ruditapes philippinarum , employing a combination of in vitro cellular assays and advanced modeling techniques...
June 15, 2024: ACS Nano
https://read.qxmd.com/read/38876985/large-area-transparent-antimony-based-perovskite-glass-for-high-resolution-x-ray-imaging
#2
JOURNAL ARTICLE
Tiao Feng, Zi'an Zhou, Yi'ni An, Long Chen, Yuhua Fu, Shuyun Zhou, Nü Wang, Jinxiao Zheng, Chenghua Sun
Nonlead low-dimensional halide perovskites attract considerable attention as X-ray scintillators. However, most scintillation screens exhibit pronounced light scattering, which detrimentally reduces the quality of X-ray imaging. Herein, we employed a simple and straightforward solvent-free melt-quenching method to fabricate a large-area zero-dimension (0D) antimony-based perovskite transparent medium, namely (C20 H20 P)2 SbCl5 (C20 H20 P+ = ethyltriphenylphosphine). The transparency is due to the large steric hindrance of C20 H20 P+ , which hinders the formation of crystals during the quenching process, thus forming a glass with low refractive index and uniform structure...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38875706/reaction-driven-diffusiophoresis-of-liquid-condensates-potential-mechanisms-for-intracellular-organization
#3
JOURNAL ARTICLE
Gregor Häfner, Marcus Müller
The cellular environment, characterized by its intricate composition and spatial organization, hosts a variety of organelles, ranging from membrane-bound ones to membraneless structures that are formed through liquid-liquid phase separation. Cells show precise control over the position of such condensates. We demonstrate that organelle movement in external concentration gradients, diffusiophoresis , is distinct from the one of colloids because fluxes can remain finite inside the liquid-phase droplets and movement of the latter arises from incompressibility...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38875527/nanopores-reveal-the-stoichiometry-of-single-oligoadenylates-produced-by-type-iii-crispr-cas
#4
JOURNAL ARTICLE
David Fuentenebro Navas, Jurre A Steens, Carlos de Lannoy, Ben Noordijk, Michael Pfeffer, Dick de Ridder, Raymond H J Staals, Sonja Schmid
Cyclic oligoadenylates (cOAs) are small second messenger molecules produced by the type III CRISPR-Cas system as part of the prokaryotic immune response. The role of cOAs is to allosterically activate downstream effector proteins that induce dormancy or cell death, and thus abort viral spread through the population. Interestingly, different type III systems have been reported to utilize different cOA stoichiometries (with 3 to 6 adenylate monophosphates). However, so far, their characterization has only been possible in bulk and with sophisticated equipment, while a portable assay with single-molecule resolution has been lacking...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38875126/a-skin-inspired-high-performance-tactile-sensor-for-accurate-recognition-of-object-softness
#5
JOURNAL ARTICLE
Shuai Wang, Xinyang Fan, Zaoxu Zhang, Zhen Su, YaNan Ding, Hongying Yang, Xin Zhang, Jinzhong Wang, Jia Zhang, PingAn Hu
High-performance tactile sensors with skin-sensing properties are crucial for intelligent perception in next-generation smart devices. However, previous studies have mainly focused on the sensitivity and response range of tactile sensation while neglecting the ability to recognize object softness. Therefore, achieving a precise perception of the softness remains a challenge. Here, we report an integrated tactile sensor consisting of a central hole gradient structure pressure sensor and a planar structure strain sensor...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38874427/defect-mediated-faceted-lithium-nucleation-on-carbon-composite-substrates
#6
JOURNAL ARTICLE
Sicen Yu, Xiaolu Yu, Sashank Shivakumar, Shen Wang, Erbin Qiu, Qiushi Miao, Junwei Gao, Min Wei, Jianbin Zhou, Zheng Chen, Ping Liu
The formation of uniform, nondendritic seeds is essential to realizing dense lithium (Li) metal anodes and long-life batteries. Here, we discover that faceted Li seeds with a hexagonal shape can be uniformly grown on carbon-polymer composite films. Our investigation reveals the critical role of carbon defects in serving as the nucleation sites for their formation. Tuning the density and spatial distribution of defects enables the optimization of conditions for faceted seed growth. Raman spectral results confirm that lithium nucleation indeed starts at the defect sites...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38874350/tuning-multipolar-mie-scattering-of-particles-on-a-dielectric-covered-mirror
#7
JOURNAL ARTICLE
Kan Yao, Jie Fang, Taizhi Jiang, Andrew F Briggs, Alec M Skipper, Youngsun Kim, Mikhail A Belkin, Brian A Korgel, Seth R Bank, Yuebing Zheng
Optically resonant particles are key building blocks of many nanophotonic devices such as optical antennas and metasurfaces. Because the functionalities of such devices are largely determined by the optical properties of individual resonators, extending the attainable responses from a given particle is highly desirable. Practically, this is usually achieved by introducing an asymmetric dielectric environment. However, commonly used simple substrates have limited influences on the optical properties of the particles atop...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38874120/recent-advances-in-functional-hydrogels-for-treating-dental-hard-tissue-and-endodontic-diseases
#8
REVIEW
Huixu Li, Ding Zhang, Pingping Bao, Ying Li, Chaoge Liu, Tingting Meng, Chao Wang, Heting Wu, Keqing Pan
Oral health is the basis of human health, and almost everyone has been affected by oral diseases. Among them, endodontic disease is one of the most common oral diseases. Limited by the characteristics of oral biomaterials, clinical methods for endodontic disease treatment still face large challenges in terms of reliability and stability. The hydrogel is a kind of good biomaterial with an adjustable 3D network structure, excellent mechanical properties, and biocompatibility and is widely used in the basic and clinical research of endodontic disease...
June 14, 2024: ACS Nano
https://read.qxmd.com/read/38871478/lipid-nanoparticular-codelivery-system-for-enhanced-antitumor-effects-by-ferroptosis-apoptosis-synergistic-with-programmed-cell-death-ligand-1-downregulation
#9
JOURNAL ARTICLE
Weiran Cao, Xue Zhang, Yaxuan Feng, Rui Li, An Lu, Zijie Li, Fei Yu, Lu Sun, Jiancheng Wang, Zhiyu Wang, Huining He
Intrinsic or acquired resistance to chemical drugs severely limits their therapeutic efficacy in cancer treatment. Various intracellular antioxidant molecules, particularly glutathione (GSH), play a crucial role in maintaining intracellular redox homeostasis by mitigating the overproduced reactive oxygen species (ROS) due to rapid cell proliferation. Notably, these antioxidants also eliminate chemical-drug-induced ROS, eventually diminishing their cytotoxicity and rendering them less effective. In this study, we combined erastin, a GSH biosynthesis inhibitor, with 2'-deoxy-5-fluorouridine 5'-monophosphate sodium salt (FdUMP), an ROS-based drug, to effectively disrupt intracellular redox homeostasis and reverse chemotherapy resistance...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38870478/suborgan-level-quantitation-of-proteins-in-tissues-delivered-by-polymeric-nanocarriers
#10
JOURNAL ARTICLE
Dheeraj K Agrohia, Ritabrita Goswami, Teerapong Jantarat, Yağız Anil Çiçek, Korndanai Thongsukh, Taewon Jeon, Jonathan M Bell, Vincent M Rotello, Richard W Vachet
Amidst the rapid growth of protein therapeutics as a drug class, there is an increased focus on designing systems to effectively deliver proteins to target organs. Quantitative monitoring of protein distributions in tissues is essential for optimal development of delivery systems; however, existing strategies can have limited accuracy, making it difficult to assess suborgan dosing. Here, we describe a quantitative imaging approach that utilizes metal-coded mass tags and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to quantify the suborgan distributions of proteins in tissues that have been delivered by polymeric nanocarriers...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38870462/quasi-van-der-waals-epitaxial-growth-of-%C3%AE-gase-nanometer-thick-films-on-gaas-111-b-substrates
#11
JOURNAL ARTICLE
Mingyu Yu, Sahani Amaya Iddawela, Jiayang Wang, Maria Hilse, Jessica L Thompson, Danielle Reifsnyder Hickey, Susan B Sinnott, Stephanie Law
GaSe is an important member of the post-transition-metal chalcogenide family and is an emerging two-dimensional (2D) semiconductor material. Because it is a van der Waals material, it can be fabricated into atomic-scale ultrathin films, making it suitable for the preparation of compact, heterostructure devices. In addition, GaSe possesses unusual optical and electronic properties, such as a shift from an indirect-bandgap single-layer film to a direct-bandgap bulk material, rare intrinsic p-type conduction, and nonlinear optical behaviors...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38870404/defect-free-few-atomic-layer-thin-zno-nanosheets-with-superior-excitonic-properties-for-optoelectronic-devices
#12
JOURNAL ARTICLE
Mandeep Singh, Muhammad Zakria, Amandeep Singh Pannu, Prashant Sonar, Christopher Smith, Sanje Mahasivam, Rajesh Ramanathan, Kevin Tran, Sherif Tawfik, Billy James Murdoch, Edwin Lawrence Harrop Mayes, Michelle J S Spencer, Matthew R Phillips, Vipul Bansal, Cuong Ton-That
Two-dimensional (2D) wide bandgap materials are gaining significant interest for next-generation optoelectronic devices. However, fabricating electronic-grade 2D nanosheets from non-van der Waals (n-vdW) oxide semiconductors poses a great challenge due to their stronger interlayer coupling compared with vdW crystals. This strong coupling typically introduces defects during exfoliation, impairing the optoelectronic properties. Herein, we report the liquid-phase exfoliation of few-atomic-layer thin, defect-free, free-standing ZnO nanosheets...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38870206/stacking-faults-enabled-second-harmonic-generation-in-centrosymmetric-van-der-waals-rhi-3
#13
JOURNAL ARTICLE
Yue Liu, Wen He, Bingze Wu, Fengyuan Xuan, Yuqiang Fang, Zhengbo Zhong, Jierui Fu, Jia-Peng Wang, Zhipeng Li, Jinzhong Wang, Mingguang Yao, Fuqiang Huang, Liang Zhen, Yang Li, Cheng-Yan Xu
Second harmonic generation (SHG) in van der Waals (vdW) materials has garnered significant attention due to its potential for integrated nonlinear optical and optoelectronic applications. Stacking faults in vdW materials are a typical kind of planar defect that introduces a degree of freedom to modulate the crystal symmetry and resultant SHG response. However, the physical origin and tunability of stacking-fault-governed SHG in vdW materials remain unclear. Here, taking the intrinsically centrosymmetric vdW RhI3 as an example, we theoretically reveal the origin of stacking-fault-governed SHG response, where the SHG response comes from the energetically favorable AC̅ stacking fault of which the electrical transitions along the high-symmetry paths Γ-M and Γ-K in the Brillion zone play the dominant role at 810 nm...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38869479/realistic-nanoplastics-induced-pulmonary-damage-via-the-crosstalk-of-ferritinophagy-and-mitochondrial-dysfunction
#14
JOURNAL ARTICLE
Yunxia Ji, Libang Chen, Yunqing Wang, Jinjin Zhang, Yue Yu, Meirong Wang, Xiaoyan Wang, Weili Liu, Bing Yan, Liang Xiao, Xiaodong Song, Changjun Lv, Lingxin Chen
The smaller size fraction of plastics may be more substantially existing and detrimental than larger-sized particles. However, reports on nanoplastics (NPs), especially their airborne occurrences and potential health hazards to the respiratory system, are scarce. Previous studies limit the understanding of their real respiratory effects, since sphere-type polystyrene (PS) nanoparticles differ from NPs occurring in nature with respect to their physicochemical properties. Here, we employ a mechanical breakdown method, producing NPs directly from bulk plastic, preserving NP properties in nature...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38869002/high-q-hybrid-mie-plasmonic-resonances-in-van-der-waals-nanoantennas-on-gold-substrate
#15
JOURNAL ARTICLE
Sam A Randerson, Panaiot G Zotev, Xuerong Hu, Alexander J Knight, Yadong Wang, Sharada Nagarkar, Dominic Hensman, Yue Wang, Alexander I Tartakovskii
Dielectric nanoresonators have been shown to circumvent the heavy optical losses associated with plasmonic devices; however, they suffer from less confined resonances. By constructing a hybrid system of both dielectric and metallic materials, one can retain low losses, while achieving stronger mode confinement. Here, we use a high refractive index multilayer transition-metal dichalcogenide WS2 exfoliated on gold to fabricate and optically characterize a hybrid nanoantenna-on-gold system. We experimentally observe a hybridization of Mie resonances, Fabry-Perot modes, and surface plasmon-polaritons launched from the nanoantennas into the substrate...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38868937/advances-of-nanomaterials-for-high-efficiency-zn-metal-anodes-in-aqueous-zinc-ion-batteries
#16
REVIEW
Fangyan Liu, Yangqian Zhang, Han Liu, Shuoxiao Zhang, Jiayi Yang, Zhen Li, Yunhui Huang, Yang Ren
Aqueous zinc-ion batteries (AZIBs) have emerged as one of the most promising candidates for next-generation energy storage devices due to their outstanding safety, cost-effectiveness, and environmental friendliness. However, the practical application of zinc metal anodes (ZMAs) faces significant challenges, such as dendrite growth, hydrogen evolution reaction, corrosion, and passivation. Fortunately, the rapid rise of nanomaterials has inspired solutions for addressing these issues associated with ZMAs. Nanomaterials with unique structural features and multifunctionality can be employed to modify ZMAs, effectively enhancing their interfacial stability and cycling reversibility...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38868865/measuring-the-shape-stiffness-and-interface-tension-of-droplets-with-the-scanning-ion-conductance-microscope
#17
JOURNAL ARTICLE
Johannes Rheinlaender, Tilman E Schäffer
Imaging and probing liquid-liquid interfaces at the micro- and nanoscale are of high relevance, for example, in materials science, surface chemistry, and microfluidics. However, existing imaging techniques are limited in resolution, average over large sample areas, or interact with the sample. Here, we present a method to quantify the shape, stiffness, and interface tension of liquid droplets with the scanning ion conductance microscope (SICM), providing submicrometer resolution and the ability to perform noncontact mechanical measurements...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38868857/a-reconfigurable-all-optical-controlled-synaptic-device-for-neuromorphic-computing-applications
#18
JOURNAL ARTICLE
Tao Zhang, Chao Fan, Lingxiang Hu, Fei Zhuge, Xinhua Pan, Zhizhen Ye
Retina-inspired visual sensors play a crucial role in the realization of neuromorphic visual systems. Nevertheless, significant obstacles persist in the pursuit of achieving bidirectional synaptic behavior and attaining high performance in the context of photostimulation. In this study, we propose a reconfigurable all-optical controlled synaptic device based on the IGZO/SnO/SnS heterostructure, which integrates sensing, storage and processing functions. Relying on the simple heterojunction stack structure and the role of energy band engineering, synaptic excitatory and inhibitory behaviors can be observed under the light stimulation of ultraviolet (266 nm) and visible light (405, 520 and 658 nm) without additional voltage modulation...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38867607/out-of-plane-emission-dipole-of-second-harmonic-generation-in-odd-and-even-layered-vdws-janus-nb-3-sei-7
#19
JOURNAL ARTICLE
Jia-Peng Wang, Xinfeng Chen, Qiyi Zhao, Yuqiang Fang, Quan Liu, Jierui Fu, Yue Liu, Xinlong Xu, Jia Zhang, Liang Zhen, Cheng-Yan Xu, Fuqiang Huang, Alfred J Meixner, Dai Zhang, Gaoyang Gou, Yang Li
Integration of atomically thin nonlinear optical (NLO) devices demands an out-of-plane (OP) emission dipole of second harmonic generation (SHG) to enhance the spontaneous emission for nanophotonics. However, the research on van der Waals (vdWs) materials with an OP emission dipole of SHG is still in its infancy. Here, by coupling back focal plane (BFP) imaging with numerical simulations and density functional theory (DFT) calculations, we demonstrate that vdWs Janus Nb3 SeI7 , ranging from bulk to the monolayer limit, exhibits a dominant OP emission dipole of SHG owing to the breaking of the OP symmetry...
June 13, 2024: ACS Nano
https://read.qxmd.com/read/38867485/multichiral-mesoporous-silica-screws-with-chiral-differential-mucus-penetration-and-mucosal-adhesion-for-oral-drug-delivery
#20
JOURNAL ARTICLE
Yumei Wang, Wei Li, Zhenwei He, Wencai Yin, Xuchun Chen, Jianxiang Zhang, Heran Li
In the harsh gastrointestinal tract, helical bacteria with hierarchical chiral architectures possess strong abilities. Taking inspirations from nature, we developed a multichiral mesoporous silica nanoscrew (L/D-MCNS) as an efficient oral drug delivery platform by modifying the structural chiral silica nanoscrew (CNS) with L/D-alanine (L/D-Ala) enantiomers via the sequential application of a chiral template and postmodification strategies. We demonstrated that L-MCNS showed differential biological behaviors and superior advantages in oral adsorption compared to those of CNS, D-MCNS, and DL-MCNS...
June 12, 2024: ACS Nano
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