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

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Scanning probe microscopy (SPM) has been extensively applied to probe interfacial water in many interdisciplinary fields but the disturbance of the probes on the hydrogen-bonding structure of water has remained an intractable problem. Here…

Scattering scanning near-field optical microscopy (s-SNOM) is a powerful technique for mid-infrared spectroscopy at nanometer length scales. By investigating objects in aqueous environments through ultrathin membranes, s-SNOM has recently…

光学 · 物理学 2024-04-03 Enrico Baù , Thorsten Gölz , Martin Benoit , Andreas Tittl , Fritz Keilmann

Premelting plays a key role across physics, chemistry, materials and biology sciences but remains poorly understood at the atomic level due to surface characterization limitations. We report the discovery of a novel amorphous ice layer…

材料科学 · 物理学 2025-12-19 Binze Tang , Chon-Hei Lo , Tiancheng Liang , Jiani Hong , Mian Qin , Yizhi Song , Duanyun Cao , Ying Jiang , Limei Xu

Protein structure determination has long been one of the primary challenges of structural biology, to which deep machine learning (ML)-based approaches have increasingly been applied. However, these ML models generally do not incorporate…

生物物理 · 物理学 2025-11-14 Tom Pan , Evan Dramko , Mitchell D. Miller , Anastasios Kyrillidis , George N. Phillips

Atomic force microscopy (AFM) is a well-known tool for studying surface roughness and to collect depth information about features on the top atomic layer of samples. By combining secondary ion mass spectroscopy (SIMS) with focused ion beam…

材料科学 · 物理学 2022-10-18 Lex Pillatsch , Szilvia Kalácska , Xavier Maeder , Johann Michler

Proteins, essential to biological systems, perform functions intricately linked to their three-dimensional structures. Understanding the relationship between protein structures and their amino acid sequences remains a core challenge in…

定量方法 · 定量生物学 2024-11-04 Liang He , Peiran Jin , Yaosen Min , Shufang Xie , Lijun Wu , Tao Qin , Xiaozhuan Liang , Kaiyuan Gao , Yuliang Jiang , Tie-Yan Liu

Liquid-liquid phase separation is emerging as a crucial phenomenon in several fundamental cell processes. A range of eukaryotic systems exhibit liquid condensates. However, their function in bacteria, which in general lack membrane-bound…

The local structure of a protein strongly impacts its function and interactions with other molecules. Therefore, a concise, informative representation of a local protein environment is essential for modeling and designing proteins and…

The Stratum Corneum (SC), the outermost layer of skin, comprises rigid corneocytes (keratin filled dead cells) in a specialized lipid matrix. The continuous lipid matrix provides the main barrier against uncontrolled water loss and invasion…

软凝聚态物质 · 物理学 2016-09-28 Chinmay Das , Peter D. Olmsted

Understanding complex biological macromolecules, especially proteins, is vital for grasping their diverse chemical functions with direct impact in biology and pharmacology. While techniques like X-ray crystallography and cryo-electron…

生物大分子 · 定量生物学 2024-04-12 S. H. Mejias , A. L. Cortajarena , R. Mincigrucci , C. Svetina , C. Masciovecchio

We describe a novel application of atomic force microscopy (AFM) to directly visualize cytoskeletal fibers in human foreskin epithelial cells. The nonionic detergent Triton X-100 in a low concentration was used to remove the membrane,…

生物物理 · 物理学 2007-05-23 T. Berdyyeva , C. D. Woodworth , I. Sokolov

Atomic-resolution imaging on molten metal/solid interfaces at temperatures above 200 {\deg}C was achieved using a high-temperature, high-speed atomic force microscope (AFM) equipped with a qPlus sensor. A tip-scanning high-speed Quadpod…

仪器与探测器 · 物理学 2026-04-08 Yuto Nishiwaki , Toru Utsunomiya , Takashi Ichii

Controlling the properties of organic/inorganic materials requires detailed knowledge of their molecular adsorption geometries. This is often unattainable, even with current state-of-the-art tools. Visualizing the structure of complex…

Scattering scanning near-field optical microscopy (s-SNOM) is a promising technique for overcoming Abbe diffraction limit and substantially enhancing the spatial resolution in spectroscopic imaging. The s-SNOM works by exposing an atomic…

量子物理 · 物理学 2024-03-22 Soheil Khajavi , Zahra Shaterzadeh-Yazdi , Ali Eghrari , Mohammad Neshat

Detecting glass regions is a challenging task due to the inherent ambiguity in their transparency and reflective characteristics. Current solutions in this field remain rooted in conventional deep learning paradigms, requiring the…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Jing Hao , Moyun Liu , Jinrong Yang , Kuo Feng Hung

The (111) surface of CaF$_2$ has been intensively studied with large-amplitude frequency-modulation atomic force microscopy and atomic contrast formation is now well understood. It has been shown that the apparent contrast patterns obtained…

材料科学 · 物理学 2007-05-23 Franz J. Giessibl , Michael Reichling

This paper presents an approach for automatic detection of Munro's Microabscess in stratum corneum (SC) of human skin biopsy in order to realize a machine assisted diagnosis of Psoriasis. The challenge of detecting neutrophils in presence…

计算机视觉与模式识别 · 计算机科学 2018-08-22 Anabik Pal , Akshay Chaturvedi , Utpal Garain , Aditi Chandra , Raghunath Chatterjee , Swapan Senapati

3D porous scaffolds based on agarose and nanocrystalline apatite, two structural components that act as a temporary mineralized extracellular matrix, were prepared by the GELPOR3D method. This shaping technology allows the introduction of…

组织与器官 · 定量生物学 2021-03-18 Juan L. Paris , Nuria Lafuente-Gomez , M. Victoria Cabanas , Jesus Roman , Juan Pena , Maria Vallet-Regi

This work presents a combined numerical and experimental approach to characterize the macroscopic transport and acoustic behavior of foam materials with a membrane cellular structure. A direct link between the sound absorption behavior of a…

应用物理 · 物理学 2017-12-12 Van Hai Trinh , Camille Perrot , Vincent Langlois , Olivier Pitois , Yacine Khidas

Protein Structure Prediction (PSP) is an unsolved problem in the field of computational biology. The problem of protein structure prediction is about predicting the native conformation of a protein, while its sequence of amino acids is…

生物大分子 · 定量生物学 2022-06-06 Hossein Parineh , Nasser Mozayani