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相关论文: A Next-Generation qPlus-Sensor-Based AFM Setup: Re…

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Recent advancements in deep learning for predicting 3D protein structures have shown promise, particularly when leveraging inputs like protein sequences and Cryo-Electron microscopy (Cryo-EM) images. However, these techniques often fall…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Jaydeep Rade , Ethan Herron , Soumik Sarkar , Anwesha Sarkar , Adarsh Krishnamurthy

Recent developments in deep learning-based methods demonstrated its potential to predict the 3D protein structures using inputs such as protein sequences, Cryo-Electron microscopy (Cryo-EM) images of proteins, etc. However, these methods…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Jaydeep Rade , Soumik Sarkar , Anwesha Sarkar , Adarsh Krishnamurthy

AI-based in silico methods have improved protein structure prediction but often struggle with large protein complexes (PCs) involving multiple interacting proteins due to missing 3D spatial cues. Experimental techniques like Cryo-EM are…

We developed the models and algorithms to describe two main artefacts of AFM: (i) broadening effect and (ii) decreased heights of profiles for individual objects adsorbed on a hard substrate. It was shown how to measure elastic properties…

软凝聚态物质 · 物理学 2015-03-19 Marat Olegovich Gallyamov

We took benefit from Atomic Force Microscopy (AFM) in the force spectroscopy mode to describe the time evolution-over 24h-of the surface nanotopography and mechanical properties of the strain Staphylococcus aureus 27217 from bacterial…

Thiol self assembled monolayers (SAMs) are widely used in many nano- and bio-technology applications. We report a new approach to create and characterize a thiol SAMs micropattern with alternating charges on a flat goldcoated substrate…

生物物理 · 物理学 2017-04-28 Brad Moores , Janet Simons , S Xu , Zoya Leonenko

Atomic force microscopy (AFM) with molecule-functionalized tips has emerged as the primary experimental technique for probing the atomic structure of organic molecules on surfaces. Most experiments have been limited to nearly planar…

Pseudo-heterodyne scattering-type scanning near-field optical microscopy (sSNOM) is applied in the mid-infrared region to detect the chemical composition of biomolecules on the nanoscale. However, the application of sSNOM in molecular…

仪器与探测器 · 物理学 2025-08-06 Yusuke Sakiyama , Emanuel Pfitzner , Santiago H. Andany , Georg E. Fantner , Joachim Heberle

Optical nanoscopy is crucial in life and materials sciences, revealing subtle cellular processes and nanomaterial properties. Scattering-type Scanning Near-field Optical Microscopy (s-SNOM) provides nanoscale resolution, relying on the…

The surface of ultra-thin materials plays a crucial role in determining the properties. This is particularly important in two-dimensional (2D) materials where the surface-bulk distinction is no longer present. While mechanical cleaning of…

材料科学 · 物理学 2026-04-14 Emine Yegin , Doruk Pehlivanoğlu , T. Serkan Kasırga

Sm proteins were discovered nearly 20 years ago as a group of small antigenic proteins ($\approx$ 90-120 residues). Since then, an extensive amount of biochemical and genetic data have illuminated the crucial roles of these proteins in…

生物大分子 · 定量生物学 2016-06-14 Cameron Mura

Cryo-electron microscopy (cryo-EM) is a technique for reconstructing the 3-dimensional (3D) structure of biomolecules (especially large protein complexes and molecular assemblies). As the resolution increases to the near-atomic scale,…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Weijie Chen , Xinyan Wang , Yuhang Wang

A new technique for the fabrication of highly sensitive qPlus sensor for atomic force microscopy (AFM) is described. Focused ion beam was used to cut then weld onto a bare quartz tuning fork a sharp micro-tip from an electrochemically…

介观与纳米尺度物理 · 物理学 2015-07-21 Hatem Labidi , Martin Kupsta , Taleana Huff , Mark Salomons , Douglas Vick , Marco Taucer , Jason Pitters , Robert A. Wolkow

Atomic force microscopy (AFM) is one of the most promising methods for investigating the structure of materials at the micro and nanoscale levels, as well as their local physical-mechanical properties. The experimental data obtained with…

材料科学 · 物理学 2018-05-07 Oleg K. Garishin , Roman I. Izyumov , Alexander L. Svistkov

Well-ordered stepped semiconductor surfaces attract intense attention owing to the regular arrangements of their atomic steps that makes them perfect templates for the growth of one- dimensional systems, e.g. nanowires. Here, we report on…

介观与纳米尺度物理 · 物理学 2017-11-09 Carmen Perez Leon , Holger Drees , Stefan Martin Wippermann , Michael Marz , Regina Hoffmann-Vogel

Atomic force microscopy (AFM) using qPlus sensors is a powerful tool for high-resolution analysis in various liquids, including high-viscosity or opaque environments. However, the relatively high displacement sensor noise density (n_{ds}),…

仪器与探测器 · 物理学 2026-05-05 Takashi Ichii , Shuji Tokitoh , Yuto Nishiwaki , Toru Utsunomiya

Revealing the structure of complex biological macromolecules, such as proteins, is an essential step for understanding the chemical mechanisms that determine the diversity of their functions. Synchrotron based x-ray crystallography and…

We introduce a pipeline for representing a protein, or protein complex, as the union of signed distance functions (SDFs) by representing each atom as a sphere with the appropriate radius. While this idea has been used previously as a way to…

生物大分子 · 定量生物学 2025-08-19 Cory B. Scott , Charlie Rothschild , Benjamin Nye

Atomic force microscopy (AFM or SPM) imaging is one of the best matches with machine learning (ML) analysis among microscopy techniques. The digital format of AFM images allows for direct utilization in ML algorithms without the need for…

生物物理 · 物理学 2025-01-07 Igor Sokolov

Multilayer metasurfaces provide substantially greater spectral design freedom than single-layer devices, yet their implementation in the visible and near-infrared remains limited by the complexity, cost, and low throughput of conventional…

光学 · 物理学 2026-01-21 A. Bilgehan Baspinar , Phillippe Pearson , Andrei Faraon
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