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We present an analytical framework that predicts and controls nanoparticle size through external magnetic fields, uniting first-principles thermodynamics with a sphere packing approach. Calibrated to diamagnetic silver nanoparticles (20 nm…

介观与纳米尺度物理 · 物理学 2025-11-11 Yazeed Tawalbeh , Marwa Ghazi , Mauro Fernandes Pereira

The manipulation of biological substrates is becoming more popular route towards generating novel computing devices. Physarum polycephalum is used as a model organism in biocomputing because it can create `wires' for use in hybrid circuits;…

新兴技术 · 计算机科学 2015-12-08 Nina Gizzie , Richard Mayne , Shlomo Yitzchaik , Muhamad Ikbal , Andrew Adamatzky

There is considerable interest in the use of heavy atom nanoparticles as theranostic contrast agents due to their high radiation cross-section compared to soft tissue. However, published studies have primarily focused on applications of…

医学物理 · 物理学 2016-01-20 Stephen J. McMahon , Harald Paganetti , Kevin M. Prise

Color centers in diamond micro and nano structures are under investigation for a plethora of applications. However, obtaining high quality color centers in small structures is challenging, and little is known about how properties such as…

The properties of nanoparticles are determined by their size and structure. When exposed to external pressure P, their structural properties can change. The improvement or degradation of the properties of the samples depending on time is…

Photoirradiation of silver nanoparticles in water solution of NaNO3 (0.01M) and in dissolved DNA was investigated by spectrophotometric and thermodynamic kinetic approaches. It is shown that only the irradiated complexes AgNPs-DNA have…

生物物理 · 物理学 2012-06-22 Vasil G. Bregadze , Zaza G. Melikishvili , Tamar G. Giorgadze

Debye temperature decrease, residual resistivity increase and electron-phonon coupling constant increase as crystallite size decreases have been found from electrical resistivity in temperature range 5 K to 300 K of well-characterized Ag…

介观与纳米尺度物理 · 物理学 2019-08-21 Vikash Sharma , Gunadhor Singh Okram

Passivation effect of heterogeneous Au nanoparticles (AuNPs) on the nonuniform structure changes of amorphous SiOx nanowire (a-SiOx NW) as athermally induced by focused electron beam (e-beam) irradiation is investigated in an in-situ…

应用物理 · 物理学 2018-09-24 Jiangbin Su , Xianfang Zhu , Liang Cheng

Potential human and environmental hazards resulting from the exposure of living organisms to silver nanoparticles (Ag NPs) have been the subject of intensive discussion in the last decade. Despite the growing use of Ag NPs in biomedical…

组织与器官 · 定量生物学 2020-01-30 Daniele Poli1 , Giorgio Mattei , Nadia Ucciferri , Arti Ahluwalia

Understanding how protective oxide scales evolve over time is necessary for improving the long term resistance of superalloys. This work investigates the time-dependent oxidation behavior of an ingot-processable Co/Ni-based superalloy…

The changes in the lifetime of a metastable energy level in Er-doped Si nanocrystals in the presence of an external source of colored noise are analyzed for different values of noise intensity and correlation time. Exciton dynamics is…

材料科学 · 物理学 2014-10-02 Stefano Spezia , Davide Valenti , Dominique Persano Adorno , Bernardo Spagnolo

In transition metal oxides, quantum confinement arising from a large surface to volume ratio often gives rise to novel physico-chemical properties at nanoscale. Their size dependent properties have potential applications in diverse areas,…

Microelectronic-grade copper foils were immersion silver plated in a home-made non-cyanide alkaline silver nitrate - thiosulfate solution and in two commercially available industrial baths via contact reductive precipitation. The…

材料科学 · 物理学 2015-02-06 T. I. Török , A. Csik , J. Hakl , K. Vad , L. Kövér , J. Tóth , S. Mészáros , É. Kun , D. Sós

The structural evolution and dynamics of silver nanodrops Ag${}_{2896}$ (4.4 nm in diameter) during rapid cooling conditions has been studied by means of molecular dynamics simulations and electronic density of state calculations. The…

材料科学 · 物理学 2009-01-22 I. Lobato , J. Rojas , C. V. Landauro , J. Torres

Tuberculosis remains today a major public health issue with a total of 9 million new cases and 2 million deaths annually. The lack of an effective vaccine and the increasing emergence of new strains of Mycobacterium tuberculosis (Mtb)…

We report results of a systematic study of structural, vibrational and thermodynamical properties of 34-atom bimetallic nanoparticles from the AgnCu34-n family using model interaction potentials as derived from the embedded atom method and…

材料科学 · 物理学 2009-11-13 Handan Yildirim , Abdelkader Kara , Talat. S Rahman

Electronic and optical properties of silver clusters were calculated using two different \textit{ab initio} approaches: 1) based on all-electron full-potential linearized-augmented plane-wave method and 2) local basis function…

介观与纳米尺度物理 · 物理学 2016-11-28 John T. Titantah , Mikko Karttunen

Recent work using plasmonic nanosensors in a clinically relevant detection assay reports extreme sensitivity based upon a mechanism termed 'inverse sensitivity', whereby reduction of substrate concentration increases reaction rate, even at…

定量方法 · 定量生物学 2017-06-05 Boris Barbour

Metal nanoparticles have a substantial impact across different fields of science, such as photochemistry, energy conversion, and medicine. Among the commonly used nanoparticles, silver nanoparticles are of special interest due to their…

软凝聚态物质 · 物理学 2022-04-29 Jakob Wolf , Tomasz M. Stawski , Glen J. Smales , Andreas F. Thuenemann , Franziska Emmerling

The shape of metal nanoparticles embedded in dielectric matrices influences the optical properties of the composite material. Swift heavy ion irradiation can induce a controllable shape transformation in gold and other metals embedded in…

材料科学 · 物理学 2022-04-22 Aleksi A. Leino , Ville E. Jantunen , Flyura Djurabekova