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444 Results Found

  • Article
  • Open Access
14 Citations
4,081 Views
12 Pages

Polymerizable Microsphere-Induced High Mechanical Strength of Hydrogel Composed of Acrylamide

  • Zhiyong Wang,
  • Meiqin Lin,
  • Menghan Wang,
  • Xia Song,
  • Chuqiao Zhang,
  • Zhaoxia Dong,
  • Juan Zhang and
  • Zihao Yang

24 May 2018

Polymerizable microspheres are introduced into acrylamide to prepare the high mechanical strength hydrogels with a novel three-dimensional pore structure. Rheological properties, compressive stress–strain, tensile property, and compression stre...

  • Article
  • Open Access
2 Citations
1,003 Views
20 Pages

Numerical Simulation of CO2 Immiscible Displacement Based on Three-Dimensional Pore Structure

  • Feng Shi,
  • Xiaoshan Li,
  • Gen Kou,
  • Huan Liu,
  • Sai Liu,
  • Zhen Liu,
  • Ziheng Zhao and
  • Xiaoyu Jiang

19 February 2025

CO2-enhanced tight oil production can increase crude oil recovery while part of the injected CO2 is geologically sequestered. This process is influenced by factors such as gas injection rate, oil/gas viscosity ratio, and contact angle. Understanding...

  • Article
  • Open Access
7 Citations
3,815 Views
16 Pages

29 October 2020

Hemoconcentration membranes used in cardiopulmonary bypass require a pore structure design with high pure water permeability, which does not allow excessive protein adsorption and useful protein loss. However, studies on hemoconcentration membranes h...

  • Article
  • Open Access
2 Citations
1,144 Views
21 Pages

3 July 2025

Porous media have great application prospects, such as transpiration cooling for the aerospace industry. The main challenge for the prediction of gas permeability includes the geometrical complexity and high Knudsen number of gas flow at the nano-sca...

  • Article
  • Open Access
3 Citations
1,433 Views
18 Pages

14 June 2024

Coalbed methane represents a promising source of clean and efficient unconventional energy. The intricate network of micro–nano pores within coal serves as the primary adsorption space for gas, contributing to the complexity of gas migration ch...

  • Article
  • Open Access
624 Views
23 Pages

9 August 2025

In recent years, in situ blasting–leaching, in the stope has emerged as an economically viable and environmentally sustainable mining technique for low-grade ore deposits. While the leaching efficiency is influenced by factors such as ore type,...

  • Article
  • Open Access
53 Citations
8,668 Views
16 Pages

26 July 2016

This paper used the X-ray three-dimensional (3D) microscope and acquired, through CT scanning, the 3D data of the long-frame coal sample from the Daliuta Coal Mine. Then, the 3D datacube reconstructed from the coal’s CT scanning data was visualized w...

  • Article
  • Open Access
2 Citations
1,950 Views
13 Pages

25 November 2022

A series of three-dimensional porous composite α-MnO2/reduced graphene oxides (α-MnO2/RGO) were prepared by nano-assembly in a hydrothermal environment at pH 9.0–13.0 using graphene oxide as the precursor, KMnO4 and MnCl2 as the man...

  • Article
  • Open Access
5 Citations
1,770 Views
20 Pages

10 August 2023

Bituminous coal reservoirs exhibit pronounced heterogeneity, which significantly impedes the production capacity of coalbed methane. Therefore, obtaining a thorough comprehension of the pore characteristics of bituminous coal reservoirs is essential...

  • Article
  • Open Access
166 Views
17 Pages

31 December 2025

The structural integrity of nuclear graphite is paramount for the lifespan of High-Temperature Gas-Cooled Reactors. The nuclear graphite components operate under extreme conditions involving high temperature, pressure, and intense neutron irradiation...

  • Article
  • Open Access
27 Citations
5,074 Views
12 Pages

Novel Mesoporous Flowerlike Iron Sulfide Hierarchitectures: Facile Synthesis and Fast Lithium Storage Capability

  • Quanning Ma,
  • Qianyu Zhuang,
  • Jun Liang,
  • Zhonghua Zhang,
  • Jing Liu,
  • Hongrui Peng,
  • Changming Mao and
  • Guicun Li

6 December 2017

The 3D flowerlike iron sulfide (F-FeS) is successfully synthesized via a facile one-step sulfurization process, and the electrochemical properties as anode materials for lithium ion batteries (LIBs) are investigated. Compared with bulk iron sulfide,...

  • Article
  • Open Access
4 Citations
1,332 Views
11 Pages

Utilizing Extraepitopic Amino Acid Substitutions to Define Changes in the Accessibility of Conformational Epitopes of the Bacillus cereus HlyII C-Terminal Domain

  • Natalia V. Rudenko,
  • Alexey S. Nagel,
  • Bogdan S. Melnik,
  • Anna P. Karatovskaya,
  • Olesya S. Vetrova,
  • Anna V. Zamyatina,
  • Zhanna I. Andreeva-Kovalevskaya,
  • Alexander V. Siunov,
  • Mikhail G. Shlyapnikov and
  • Fedor A. Brovko
  • + 1 author

17 November 2023

Hemolysin II (HlyII)—one of the pathogenic factors of Bacillus cereus, a pore-forming β-barrel toxin—possesses a C-terminal extension of 94 amino acid residues, designated as the C-terminal domain of HlyII (HlyIICTD), which plays an...

  • Article
  • Open Access
5 Citations
1,994 Views
11 Pages

Region Met225 to Ile412 of Bacillus cereus Hemolysin II Is Capable to Agglutinate Red Blood Cells

  • Alexey S. Nagel,
  • Natalia V. Rudenko,
  • Polina N. Luchkina,
  • Anna P. Karatovskaya,
  • Anna V. Zamyatina,
  • Zhanna I. Andreeva-Kovalevskaya,
  • Alexander V. Siunov,
  • Fedor A. Brovko and
  • Alexander S. Solonin

19 April 2023

Hemolysin II (HlyII) is one of the virulence factors of the opportunistic bacterium Bacillus cereus belonging to the group of β-pore-forming toxins. This work created a genetic construct encoding a large C-terminal fragment of the toxin (HlyIILC...

  • Article
  • Open Access
5 Citations
2,486 Views
16 Pages

11 July 2023

To achieve an accurate and comprehensive characterization of the multiscale pore–fracture characteristics of Permian coal in the Jingbian Block, Ordos Basin, a combination of scanning electron microscopy (SEM), X-ray computed tomography (CT), a...

  • Article
  • Open Access
624 Views
12 Pages

12 November 2025

Composite silicone rubber insulators are widely used in overhead transmission lines but undergo inevitable aging-induced performance degradation or failure. Understanding their aging process is crucial for optimizing manufacturing and on-site service...

  • Article
  • Open Access
6 Citations
4,837 Views
20 Pages

14 December 2023

Low-temperature nitrogen adsorption is a widely used method for the research and evaluation of gas shale’s pore structure. The existing interpretation method, utilizing gas adsorption isotherms to obtain pore size distribution (PSD), is always...

  • Article
  • Open Access
8 Citations
3,655 Views
12 Pages

Three-Dimensional Mesoporous Ni-CeO2 Catalyst for Dry Reforming of Methane

  • Huiyao Jin,
  • Yuanqiao Liu,
  • Lizhi Huang,
  • Yali Liu,
  • Sha Cui,
  • Hui Liu,
  • Jing Xu and
  • Luhui Wang

26 April 2024

Using the colloidal solution combustion approach, a three-dimensional mesoporous 5%Ni-CeO2-M catalyst was developed, with Ni incorporated into the pores, and applied in the dry reforming of methane. Comprehensive characterization revealed that the 5%...

  • Article
  • Open Access
4 Citations
2,063 Views
22 Pages

15 August 2024

The detailed characterization of the pore structure in sandstone is pivotal for the assessment of reservoir properties and the efficiency of oil and gas exploration. Traditional fully supervised learning algorithms are limited in performance enhancem...

  • Review
  • Open Access
40 Citations
6,996 Views
34 Pages

Natural polymers, thanks to their intrinsic biocompatibility and biomimicry, have been largely investigated as scaffold materials for tissue engineering applications. Traditional scaffold fabrication methods present several limitations, such as the u...

  • Article
  • Open Access
22 Citations
3,748 Views
16 Pages

Research on Micro-Pore Structure and 3D Visual Characterization of Inter-Salt Shale Based on X-CT Imaging Digital Core Technology

  • Jie Zhao,
  • Yizhong Zhang,
  • Maolin Zhang,
  • Zheng Mao,
  • Chenchen Wang,
  • Rongrong Hu,
  • Long Yang and
  • Yong Liu

5 July 2022

Pore structure is the key factor affecting reservoir accumulation and enrichment behavior. Due to the complex mineral components and pore structure of shale oil reservoirs and strong heterogeneity, it is necessary to explore the micro-pore structure...

  • Article
  • Open Access
2 Citations
1,196 Views
14 Pages

16 May 2025

This study developed a novel water-soluble Cellulose Acetoacetate (CAA)-chitosan (CS) composite hydrogel drug delivery system. In this system, CAA and CS molecules are cross-linked via dynamic enamine bonds, forming a three-dimensional network struct...

  • Article
  • Open Access
999 Views
17 Pages

A Comprehensive Evaluation of Simulating Thermal Conductivity in Oak Wood Using XCT Imaging

  • Jingyao Zhao,
  • Bonan Chen,
  • Jiajun Lv,
  • Jiancong Yi,
  • Liying Yuan,
  • Yuanchu Liu,
  • Yingchun Cai and
  • Xiang Chi

17 May 2025

Wood drying is the most critical and energy-intensive process in the wood industry. However, the complex pore structure of wood significantly affects its thermal performance. Therefore, it is essential to study the relationship between the pore struc...

  • Article
  • Open Access
26 Citations
2,636 Views
17 Pages

Study on Durability and Pore Characteristics of Concrete under Salt Freezing Environment

  • Xinchao Zheng,
  • Fang Liu,
  • Tao Luo,
  • Yanfu Duan,
  • Yu Yi and
  • Cheng Hua

26 November 2021

The macroscopic mechanical properties and frost resistance durability of concrete are closely related to the changes in the internal pore structure. In this study, the two-dimensional and three-dimensional ICT (Industrial Computerized Tomography) por...

  • Article
  • Open Access
5 Citations
2,505 Views
13 Pages

16 April 2024

The non-destructive study of soil micromorphology via computed tomography (CT) imaging has yielded significant insights into the three-dimensional configuration of soil pores. Precise pore analysis is contingent on the accurate transformation of CT i...

  • Article
  • Open Access
21 Citations
3,335 Views
17 Pages

The Influence of Micro-Fractures on the Flow in Tight Oil Reservoirs Based on Pore-Network Models

  • Hai Sun,
  • Lian Duan,
  • Lei Liu,
  • Weipeng Fan,
  • Dongyan Fan,
  • Jun Yao,
  • Lei Zhang,
  • Yongfei Yang and
  • Jianlin Zhao

28 October 2019

In this paper, the influence of micro-fractures on the flow of tight reservoirs is studied on the microscopic scale. Three-dimensional digital cores of fractured tight sandstone with varying fracture apertures, lengths, and dip angles are constructed...

  • Article
  • Open Access
1 Citations
1,547 Views
19 Pages

6 November 2024

To investigate the microscopic pore evolution characteristics of Zhanjiang Formation structural clay during the disturbance process, unconfined compressive strength tests, scanning electron microscopy (SEM), and X-ray diffraction (XRD) were conducted...

  • Communication
  • Open Access
46 Citations
8,466 Views
16 Pages

Evaluation of Microstructure and Transport Properties of Deteriorated Cementitious Materials from Their X-ray Computed Tomography (CT) Images

  • Michael Angelo B. Promentilla,
  • Shermaine M. Cortez,
  • Regina Anne DC. Papel,
  • Bernadette M. Tablada and
  • Takafumi Sugiyama

19 May 2016

Pore structure, tortuosity and permeability are considered key properties of porous materials such as cement pastes to understand their long-term durability performance. Three-dimensional image analysis techniques were used in this study to quantify...

  • Article
  • Open Access
12 Citations
2,512 Views
11 Pages

Preparation and In Vitro Bioactivity Study of a Novel Hollow Mesoporous Bioactive Glass Nanofiber Scaffold

  • Jian Xiao,
  • Qianghua Wei,
  • Jinhong Xue,
  • Zide Yang,
  • Zhicheng Deng and
  • Fulai Zhao

17 November 2022

In this study, a novel three-dimensional hollow mesoporous bioactive glass nanofiber scaffold has been synthesized with a template-assisted sol-gel method using bacterial cellulose (BC) as a template and nonionic triblock copolymer (P123) as a pore-d...

  • Article
  • Open Access
103 Citations
6,797 Views
15 Pages

Preparation and Characterization of TPP-Chitosan Crosslinked Scaffolds for Tissue Engineering

  • Ilaria Silvestro,
  • Iolanda Francolini,
  • Valerio Di Lisio,
  • Andrea Martinelli,
  • Loris Pietrelli,
  • Anna Scotto d’Abusco,
  • Andromeda Scoppio and
  • Antonella Piozzi

13 August 2020

Scaffolds are three-dimensional porous structures that must have specific requirements to be applied in tissue engineering. Therefore, the study of factors affecting scaffold performance is of great importance. In this work, the optimal conditions fo...

  • Article
  • Open Access
3 Citations
1,014 Views
18 Pages

13 March 2025

On the Loess Plateau of China, the number of projects involving the excavation of mountains and the filling of valleys to create new land is rising. The loess excavated from the mountain is directly used as building material. After being filled into...

  • Article
  • Open Access
6 Citations
2,579 Views
15 Pages

3D Characterization of Pore Structure and Pore Scale Seepage Simulation of Sandstone Based on Computational Tomography

  • Kaipeng Zhu,
  • Kai Li,
  • Yadong Ji,
  • Xiaolong Li,
  • Xuan Liu,
  • Kaide Liu and
  • Xuandong Chen

1 April 2024

The microscopic pore structure of sandstone determines its macroscopic permeability. Based on computer tomography (CT) technology, CT scans were performed on three different types of sandstone pore structures, namely coarse sandstone, medium sandston...

  • Article
  • Open Access
6 Citations
2,273 Views
12 Pages

24 November 2020

The pore structure is an important factor of tunnel coating failure, cracking and water leakage. Some investigations on the statistical law of pores and pore networks have been conducted, but little quantitative analysis is observed on topology struc...

  • Article
  • Open Access
104 Citations
10,396 Views
18 Pages

24 August 2015

In the treatment of osseous defects micro-structured three-dimensional materials for bone replacement serve as leading structure for cell migration, proliferation and bone formation. The scaffold design and culture conditions are crucial for the limi...

  • Article
  • Open Access
56 Citations
8,992 Views
14 Pages

Alginate/Gelatin Hydrogels Reinforced with TiO2 and β-TCP Fabricated by Microextrusion-based Printing for Tissue Regeneration

  • Rodrigo Urruela-Barrios,
  • Erick Ramírez-Cedillo,
  • A. Díaz de León,
  • Alejandro J. Alvarez and
  • Wendy Ortega-Lara

11 March 2019

Three-dimensional (3D) printing technologies have become an attractive manufacturing process to fabricate scaffolds in tissue engineering. Recent research has focused on the fabrication of alginate complex shaped structures that closely mimic biologi...

  • Article
  • Open Access
759 Views
24 Pages

17 October 2025

The pore structure of cocopeat-based substrates critically influences their hydraulic properties, directly affecting water use efficiency in soilless cultivation systems. Previous macroscopic modeling approaches infer pore structures indirectly from...

  • Article
  • Open Access
6 Citations
1,766 Views
13 Pages

10 January 2024

Industrial lignin, a by-product of pulping for papermaking fibers or of second-generation ethanol production, is primarily served as a low-grade combustible energy source. The fabrication of high-value-added functional materials with industrial ligni...

  • Article
  • Open Access
4 Citations
2,118 Views
18 Pages

Evolution of Pore Structure and Fractal Characteristics in Red Sandstone under Cyclic Impact Loading

  • Huanhuan Qiao,
  • Peng Wang,
  • Zhen Jiang,
  • Yao Liu,
  • Guanglin Tian and
  • Bokun Zhao

Fatigue damage can occur in surface rock engineering due to various factors, including earthquakes, blasting, and impacts. The underlying cause for the variations in physical and mechanical properties of the rock resulting from impact loading is the...

  • Article
  • Open Access
3 Citations
2,346 Views
14 Pages

Structural Features of the Fragments from Cast Iron Cauldrons of the Medieval Golden Horde: Neutron Tomography Data

  • Bulat Bakirov,
  • Veronica Smirnova,
  • Sergey Kichanov,
  • Eugenia Shaykhutdinova,
  • Mikhail Murashev,
  • Denis Kozlenko and
  • Ayrat Sitdikov

The spatial arrangement of the internal pores inside several fragments of ancient cast iron cauldrons related to the medieval Golden Horde period was studied using the neutron tomography method. The high neutron penetration into a cast iron material...

  • Article
  • Open Access
30 Citations
8,317 Views
17 Pages

24 July 2020

Soft-tissue fillers made of hyaluronic acid and combined with lidocaine have recently become a popular tool in aesthetic medicine. Several manufacturers have developed their own proprietary formulae with varying manufacturing tools, concentrations, c...

  • Feature Paper
  • Article
  • Open Access
27 Citations
5,510 Views
12 Pages

3D Nanoporous Anodic Alumina Structures for Sustained Drug Release

  • Maria Porta-i-Batalla,
  • Elisabet Xifré-Pérez,
  • Chris Eckstein,
  • Josep Ferré-Borrull and
  • Lluis F. Marsal

21 August 2017

The use of nanoporous anodic alumina (NAA) for the development of drug delivery systems has gained much attention in recent years. The release of drugs loaded inside NAA pores is complex and depends on the morphology of the pores. In this study, NAA,...

  • Article
  • Open Access
9 Citations
3,474 Views
15 Pages

16 May 2020

In this study, the microstructure, precipitations, and microsegregation in the laser additive manufactured thin-wall structure of a single-crystal superalloy are synthetically characterized. The influence of a subsequent heat treatment on the microst...

  • Review
  • Open Access
14 Citations
8,871 Views
15 Pages

29 August 2017

Apicomplexan parasites cause diseases, including malaria and toxoplasmosis, in a range of hosts, including humans. These intracellular parasites utilize pore-forming proteins that disrupt host cell membranes to either traverse host cells while migrat...

  • Article
  • Open Access
22 Citations
3,018 Views
21 Pages

7 April 2021

The article presents the modeling of the dynamics of the vapor-gas mixture and heat and mass transfer (sorption-desorption) in the capillary structure of the porous medium. This approach is underpinned by the fact that the porous structure is represe...

  • Article
  • Open Access
4 Citations
3,194 Views
12 Pages

22 December 2019

An electrochemical cell combining the energy storage characteristics of the chemical redox reaction and a physical capacitor effect presents advantages including high energy and power densities, and long durability. In this study, we prepared nanohyb...

  • Article
  • Open Access
7 Citations
2,170 Views
27 Pages

14 February 2022

Core samples of the tight sandstone reservoir in the Bonan Oilfield were analyzed by using multiple petrophysical experimental techniques, then a multi-scale three-dimensional digital rock model was constructed. The pore structure parameters of tight...

  • Review
  • Open Access
57 Citations
6,465 Views
16 Pages

28 April 2021

In the last ten years, ABC transporters have emerged as unexpected yet significant contributors to pest resistance to insecticidal pore-forming proteins from Bacillus thuringiensis (Bt). Evidence includes the presence of mutations in resistant insect...

  • Article
  • Open Access
6 Citations
2,718 Views
13 Pages

Amine-Impregnated Dendritic Mesoporous Silica for the Adsorption of Formaldehyde

  • Ji Myeong Lee,
  • Misun Kang,
  • June-Seo Kim and
  • Jae Young Bae

22 December 2023

To adsorb and remove formaldehyde, which is a harmful volatile organic chemical (VOC) detected indoors, an alkylamine was introduced into the substrate as a formaldehyde adsorbent. In this study, Tetraethylenepentaamine (TEPA) was introduced into the...

  • Article
  • Open Access
4 Citations
1,513 Views
12 Pages

25 April 2024

Although bioceramic materials exhibit good biocompatibilities and bone conductivities, their high brittleness and low toughness properties limit their applications. Zirconia (ZrO2)/resin composites with idealized structures and properties were prepar...

  • Article
  • Open Access
8 Citations
2,647 Views
21 Pages

8 March 2024

An open-cell metal foam has excellent characteristics such as low density, high porosity, high specific surface area, high thermal conductivity, and low mass due to its unique internal three-dimensional network structure. It has gradually become a ne...

  • Article
  • Open Access
3 Citations
2,004 Views
18 Pages

Soil Biopores and Non-Biopores Responses to Different Tillage Treatments in Sugarcane Fields in Guangxi, China

  • Song Wang,
  • Lei Gan,
  • Shuo Zhang,
  • Jian Li,
  • Cheng Chang,
  • Yu Zhang,
  • Hongxia Zhang and
  • Benhui Wei

26 June 2024

Different types of soil macropores respond differently to various tillage practices, owing to disparities in origin, scale, morphology, and function, consequently exerting distinct effects on soil structure. This study aimed to investigate the respon...

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