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Showing 20 of 858 academic articles

Influence of chemical composition and discontinuities on energy transformation and rock mass behaviour: Insights into geological dynamic

Naeem Abbas, Kegang Li, Yewuhalashet Fissha, Zemicael Gebrehiwot et al. • The Journal of Engineering (2024)

Abstract In this study, efforts were made to incorporate the influence of discontinuities and failure modes of rock into the classification of rock masses. The past tectonic activities may create microfractures in the rock body therefore th...

DOAJ Open Access (DOAJ) DOI: 10.1049/tje2.12388

Investigation of the Structural, Electrical, and Optical Properties of the Nano-Scale GZO Thin Films on Glass and Flexible Polyimide Substrates

Fang-Hsing Wang, Kun-Neng Chen, Chao-Ming Hsu, Min-Chu Liu et al. • Nanomaterials (2016)

In this study, Ga2O3-doped ZnO (GZO) thin films were deposited on glass and flexible polyimide (PI) substrates at room temperature (300 K), 373 K, and 473 K by the radio frequency (RF) magnetron sputtering method. After finding the depositi...

DOAJ Open Access (DOAJ) DOI: 10.3390/nano6050088

The electrochemical effects of pitch stabilization for supercapacitor-grade activated carbon precursors

Jeong Han Lee, Min Ju O, Yong-Mook Kang, Kwang Chul Roh • Electrochemistry Communications (2024)

Petroleum pitch (PP) is a by-product generated during the petroleum refining process, characterized by its high carbon content, tunable structure, and cost-effectiveness. These attributes have spurred extensive research into its potential a...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.elecom.2023.107638

Study of the growth mechanism of a self-assembled and ordered multi-dimensional heterojunction at atomic resolution

Zunyu Liu, Chaoyu Zhao, Shuangfeng Jia, Weiwei Meng et al. • Frontiers of Optoelectronics (2023)

Abstract Multi-dimensional heterojunction materials have attracted much attention due to their intriguing properties, such as high efficiency, wide band gap regulation, low dimensional limitation, versatility and scalability. To further imp...

DOAJ Open Access (DOAJ) DOI: 10.1007/s12200-023-00091-2

Dynamic Assembly of Microgels and Polymers at Non‐Aqueous Liquid/Liquid Interfaces

Xin Guan, Yang Liu, Lianwei Li, Man‐Hin Kwok et al. • Advanced Science (2025)

Abstract Particle assembly at liquid–liquid interfaces presents a promising bottom‐up strategy for creating supramolecular materials with advanced functionalities. However, the significantly lower interfacial tension observed in immiscible ...

DOAJ Open Access (DOAJ) DOI: 10.1002/advs.202415642

A hybrid nanomodulator enables metabolic microenvironment remodeling for potent immunotherapy against lung adenocarcinoma

Shuping Wang, Pengcheng Chen, Xiaozhen Jing, Jinglin Zou et al. • Materials & Design (2026)

STING agonist-based immunotherapy holds considerable promise for cancer treatment, yet its efficacy against immunologically “cold” tumors such as lung adenocarcinoma (LUAD) remains markedly limited. A major obstacle lies in the highly glyco...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.matdes.2026.117182

Pressure Effects on Monolayer FeCl2: Above‐Room‐Temperature Ferromagnetism with In‐Plane Electric Polarization and Interface‐Free Magnetic Tunnel Junctions

Shubham Tyagi, Paresh C. Rout, Shubham Singh, Udo Schwingenschlögl • Advanced Electronic Materials (2026)

ABSTRACT We investigate the influence of hydrostatic pressure on the physical properties of monolayer FeCl2 for spintronics applications. A phase transition from a ferromagnetic half‐metal to a ferromagnetic semiconductor is unveiled at 4.6...

DOAJ Open Access (DOAJ) DOI: 10.1002/aelm.202500230

A review on green synthesis of ZnO nanoparticles

Madhusmita Swain, Durgamadhab Mishra, Gourishankar Sahoo • Discover Applied Sciences (2025)

Abstract Nanoparticles and Nanostructured materials are playing an ever-important role in affordable healthcare, environment remediation, renewable energy, agriculture, consumer electronics, cosmetics etc. However, progress in these sectors...

DOAJ Open Access (DOAJ) DOI: 10.1007/s42452-025-06957-8

RETRACTED ARTICLE: A brief comparative examination of tangent hyperbolic hybrid nanofluid through a extending surface: numerical Keller–Box scheme

Wasim Jamshed, M. Prakash, S. Suriya Uma Devi, Rabha W. Ibrahim et al. • Scientific Reports (2021)

Abstract A novel hybrid nanofluid was explored in order to find an efficient heat-transmitting fluid to replace standard fluids and revolutionary nanofluids. By using tangent hyperbolic hybrid combination nanoliquid with non-Newtonian ethyl...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-021-03392-8

Superconductivity emerging from a stripe charge order in IrTe2 nanoflakes

Sungyu Park, So Young Kim, Hyoung Kug Kim, Min Jeong Kim et al. • Nature Communications (2021)

Superconductivity often appears due to suppression of competing electronic orders. Here, the authors present a contrary example showing a superconducting dome inside the parent phase with a stripe charge order in IrTe2 nanoflakes and identi...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-021-23310-w

Second hyperpolarizability of hexagonal graphene quantum dots: Effects of size and structural defects

Jiasheng Zhou, Haipeng Li, Ziqiang Yang, Zitao Zhang et al. • Carbon Trends (2021)

Graphene quantum dots (GQDs) are nanosized fragments of graphene containing a bandgap caused by edge effects and quantum confinement. These features enable GQDs to have attractive photonics applications. During the preparation of graphene n...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.cartre.2021.100054

Facile Synthesis of Propranolol and Novel Derivatives

Vy Anh Tran, Nguyen Hai Tai Tran, Long Giang Bach, Trinh Duy Nguyen et al. • Journal of Chemistry (2020)

Propranolol is one of the first medications of the beta-blocker used for antihypertensive drugs. This study reports the facile route for the synthesis of propranolol and its novel derivatives. Herein, propranolol synthesis proceeded from 1-...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/9597426

A Novel Enhanced-Majority-Voter Universal Gate in Quantum Dot Cellular Automata with Energy Dissipation Analysis

S. Umira, R. Qadri, Z.A. Bangi, M. Tariq Banday et al. • Журнал нано- та електронної фізики (2017)

The Quantum effects instigate to dominate device recital when transistor geometries are abridged. Sometimes, transistors refrain to have the properties that mark them beneficial for computational designs. With the intention of keeping pace ...

DOAJ Open Access (DOAJ) DOI: 10.21272/jnep.9(3).03034

Synthesis and electrochemical characterization of iron oxide/poly(2-methylaniline) nanohybrids for supercapacitor application

Ahmed Ashour M., Essam Doaa, Kabatas Mohamed A. Basyooni-M., Abdel-Khaliek Ahmed A. et al. • Nanotechnology Reviews (2025)

This study reports the synthesis of a nanohybrid material composed of poly(2-methylaniline) (P(2MA)) and iron oxide (Fe2O3) as electrodes for supercapacitors using a simple and cost-effective method. Various characterization techniques were...

DOAJ Open Access (DOAJ) DOI: 10.1515/ntrev-2025-0189

Study of the Effect of Laser Energy on the Structural and Optical Properties of TiO2 NPs Prepared by PLAL Technique

Israa Hasan, Khawla Khashan, Aseel Hadi • Journal of Applied Sciences and Nanotechnology (2022)

Titanium dioxide nanoparticles were produced in this work by laser ablation of a high purity titanium objective immersed in distilled water. Optical and structural properties of the obtained TiO2 NPs using a Q-switched Nd: YAG laser of 1064...

DOAJ Open Access (DOAJ) DOI: 10.53293/jasn.2021.3600.1031

Nanotechnology and the environment: A European perspective

D.G. Rickerby, Mark Morrison • Science and Technology of Advanced Materials (2006)

The potential positive and negative effects of nanotechnology on the environment are discussed. Advances in nanotechnology may be able to provide more sensitive detection systems for air and water quality monitoring, allowing the simultaneo...

OPENALEX Open Access DOI: https://doi.org/10.1016/j.stam.2006.10.002