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  1. Article ; Online: White blood cell subtypes and neutrophil extracellular traps as biomarkers for stroke etiology.

    Ahmadi, Kousar / Alimohammadi, Ehsan

    Thrombosis research

    2024  Volume 235, Page(s) 181–182

    MeSH term(s) Humans ; Extracellular Traps ; Biomarkers
    Chemical Substances Biomarkers
    Language English
    Publishing date 2024-02-06
    Publishing country United States
    Document type Letter
    ZDB-ID 121852-9
    ISSN 1879-2472 ; 0049-3848
    ISSN (online) 1879-2472
    ISSN 0049-3848
    DOI 10.1016/j.thromres.2024.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 863: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Study of changes in the aging process, microstructure, and mechanical properties of AA2024-AA1050 nanocomposites created by the accumulative roll bonding process, with the addition of 0.005 vol.% of alumina nanoparticles.

    Roghani, Hamed / Borhani, Ehsan / Ahmadi, Ehsan / Jafarian, Hamid Reza

    Discover nano

    2024  Volume 19, Issue 1, Page(s) 1

    Abstract: We created AA2024-AA1050 and AA2024-AA1050/0.005 vol.% ... ...

    Abstract We created AA2024-AA1050 and AA2024-AA1050/0.005 vol.% Al
    Language English
    Publishing date 2024-01-02
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2731-9229
    ISSN (online) 2731-9229
    DOI 10.1186/s11671-023-03917-2
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  3. Article ; Online: Gaussian to flat-top beam shaping in an off-axis reflective scenario by a millimeter-wave metasurface.

    Imanbeygi, Ehsan / Ahmadi-Boroujeni, Mehdi

    Applied optics

    2024  Volume 63, Issue 8, Page(s) 1908–1916

    Abstract: In this paper, we present a metallic reflectarray for shaping the emitted Gaussian beam of a 100 GHz horn antenna in reflective and off-axis mode. The proposed reflectarray is a compact planar surface consisting of a 2D array of unit cells with a thin ... ...

    Abstract In this paper, we present a metallic reflectarray for shaping the emitted Gaussian beam of a 100 GHz horn antenna in reflective and off-axis mode. The proposed reflectarray is a compact planar surface consisting of a 2D array of unit cells with a thin Rogers 5880 substrate. This reflectarray offers advantages over other beam shapers in millimeter-wave (MMW) imaging, as it generates a flat-top beam in off-axis reflective mode and is straightforward to fabricate. To conduct a feasibility study, we first introduce the 1D reflectarray. The phase profile of the 1D reflectarray is a linear combination of a beam shaping phase profile based on geometrical optics (GO) and a compensating phase profile. The design of the 1D reflectarray involves tailoring the dimensions of the unit cells in one direction. We calculate the scattered field from the 1D reflectarray using the finite element method (FEM) and then determine the generated beam using the Fresnel diffraction integral. Subsequently, we design the 2D reflectarray following the same approach by using a 2D version of the proposed phase profile. The full-wave simulation is employed to calculate the generated beam at a certain distance from the reflectarray. The results reveal the successful generation of a high-quality flat-top beam, showcasing the proposed reflectarray as an evolutionary solution among beam shapers.
    Language English
    Publishing date 2024-04-03
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.511269
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Selective preparation of crystalline or fibrous nano-cellulose carboxylate to fabricate an anti-bacterial hydrogel in co-operation with ZnO and recycled gelatin.

    Tamaddon, Fatemeh / Bagheri, Fatemeh / Ahmadi-AhmadAbadi, Ehsan

    International journal of biological macromolecules

    2023  Volume 242, Issue Pt 4, Page(s) 124922

    Abstract: Bio-polymeric based nano-composites and hydrogels are newsworthy nano-biomaterials. Herein, crystalline or fibrous nano-cellulose carboxylate (NCCC and NCCF) were selectively prepared via the controllable direct oxidative-hydrolysis of MC in alkaline ... ...

    Abstract Bio-polymeric based nano-composites and hydrogels are newsworthy nano-biomaterials. Herein, crystalline or fibrous nano-cellulose carboxylate (NCCC and NCCF) were selectively prepared via the controllable direct oxidative-hydrolysis of MC in alkaline NaClO
    MeSH term(s) Hydrogels/chemistry ; Gelatin ; Zinc Oxide/chemistry ; Cellulose ; Spectroscopy, Fourier Transform Infrared ; Staphylococcus aureus ; Escherichia coli ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Bacteria ; Gram-Negative Bacteria ; X-Ray Diffraction ; Microbial Sensitivity Tests
    Chemical Substances Hydrogels ; Gelatin (9000-70-8) ; Zinc Oxide (SOI2LOH54Z) ; Cellulose (9004-34-6) ; Anti-Bacterial Agents
    Language English
    Publishing date 2023-05-27
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.124922
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2374: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: The green synthesis and applications of biological metal-organic frameworks for targeted drug delivery and tumor treatments.

    Binaeian, Ehsan / Nabipour, Hafezeh / Ahmadi, Soroush / Rohani, Sohrab

    Journal of materials chemistry. B

    2023  Volume 11, Issue 48, Page(s) 11426–11459

    Abstract: Biological metal-organic frameworks (bio-MOFs) constitute a growing subclass of MOFs composed of metals and bio-ligands derived from biology, such as nucleobases, peptides, saccharides, and amino acids. Bio-ligands are more abundant than other ... ...

    Abstract Biological metal-organic frameworks (bio-MOFs) constitute a growing subclass of MOFs composed of metals and bio-ligands derived from biology, such as nucleobases, peptides, saccharides, and amino acids. Bio-ligands are more abundant than other traditional organic ligands, providing multiple coordination sites for MOFs. However, bio-MOFs are typically prepared using hazardous or harmful solvents or reagents, as well as laborious processes that do not conform to environmentally friendly standards. To improve biocompatibility and biosafety, eco-friendly synthesis and functionalization techniques should be employed with mild conditions and safer materials, aiming to reduce or avoid the use of toxic and hazardous chemical agents. Recently, bio-MOF applications have gained importance in some research areas, including imaging, tumor therapy, and targeted drug delivery, owing to their flexibility, low steric hindrances, low toxicity, remarkable biocompatibility, surface property refining, and degradability. This has led to an exponential increase in research on these materials. This paper provides a comprehensive review of updated strategies for the synthesis of environmentally friendly bio-MOFs, as well as an examination of the current progress and accomplishments in green-synthesized bio-MOFs for drug delivery aims and tumor treatments. In conclusion, we consider the challenges of applying bio-MOFs for biomedical applications and clarify the possible research orientation that can lead to highly efficient therapeutic outcomes.
    MeSH term(s) Humans ; Metal-Organic Frameworks/chemistry ; Drug Delivery Systems ; Metals/chemistry ; Neoplasms/drug therapy ; Surface Properties
    Chemical Substances Metal-Organic Frameworks ; Metals
    Language English
    Publishing date 2023-12-13
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2702241-9
    ISSN 2050-7518 ; 2050-750X
    ISSN (online) 2050-7518
    ISSN 2050-750X
    DOI 10.1039/d3tb01959d
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  6. Article: Study on diazinon toxicity reduction by electro-Fenton process: A bioassay using daphnia magna.

    Rabbani, Davarkhah / Dehghani, Rouhullah / Akbari, Hossein / Rahmani, Hasan / Ahmadi, Ehsan / Bagheri, Amin / Allahi, Saeid

    Heliyon

    2024  Volume 10, Issue 4, Page(s) e25928

    Abstract: The realm of diazinon reduction from polluted water has witnessed a surge in the significance of advanced oxidation processes (AOPs) in recent times. However, there is a dearth of research focusing on the mitigation of its toxicity through AOPs. Thus, ... ...

    Abstract The realm of diazinon reduction from polluted water has witnessed a surge in the significance of advanced oxidation processes (AOPs) in recent times. However, there is a dearth of research focusing on the mitigation of its toxicity through AOPs. Thus, the primary objective of this study was to evaluate the effectiveness of the Electro-Fenton process (EFP) in the eradication and detoxification of diazinon in aqueous solutions. Synthetic wastewater samples with concentrations of 2, 2.5 and 3 mg/L were prepared. A total of 27 samples were determined using Box Behnken Design. Reaction time, pH and iron to hydrogen peroxide ratio (Fe
    Language English
    Publishing date 2024-02-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e25928
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  7. Article: Global Prevalence of

    Riahi, Seyed Mohammad / Ahmadi, Ehsan / Zeinali, Tayebeh

    International journal of microbiology

    2021  Volume 2021, Page(s) 1499869

    Abstract: The prevalence ... ...

    Abstract The prevalence of
    Language English
    Publishing date 2021-09-02
    Publishing country Egypt
    Document type Journal Article ; Review
    ZDB-ID 2467270-1
    ISSN 1687-9198 ; 1687-918X
    ISSN (online) 1687-9198
    ISSN 1687-918X
    DOI 10.1155/2021/1499869
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Book ; Online: Automatic summarisation of Instagram social network posts Combining semantic and statistical approaches

    Taghandiki, Kazem / Ahmadi, Mohammad Hassan / Ehsan, Elnaz Rezaei

    2023  

    Abstract: The proliferation of data and text documents such as articles, web pages, books, social network posts, etc. on the Internet has created a fundamental challenge in various fields of text processing under the title of "automatic text summarisation". Manual ...

    Abstract The proliferation of data and text documents such as articles, web pages, books, social network posts, etc. on the Internet has created a fundamental challenge in various fields of text processing under the title of "automatic text summarisation". Manual processing and summarisation of large volumes of textual data is a very difficult, expensive, time-consuming and impossible process for human users. Text summarisation systems are divided into extractive and abstract categories. In the extractive summarisation method, the final summary of a text document is extracted from the important sentences of the same document without any modification. In this method, it is possible to repeat a series of sentences and to interfere with pronouns. However, in the abstract summarisation method, the final summary of a textual document is extracted from the meaning and significance of the sentences and words of the same document or other documents. Many of the works carried out have used extraction methods or abstracts to summarise the collection of web documents, each of which has advantages and disadvantages in the results obtained in terms of similarity or size. In this work, a crawler has been developed to extract popular text posts from the Instagram social network with appropriate preprocessing, and a set of extraction and abstraction algorithms have been combined to show how each of the abstraction algorithms can be used. Observations made on 820 popular text posts on the social network Instagram show the accuracy (80%) of the proposed system.
    Keywords Computer Science - Artificial Intelligence
    Subject code 006
    Publishing date 2023-03-14
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Simultaneous Coating of Electrospun Nanofibers with Bioactive Molecules for Stem Cell Osteogenesis

    Zahiri-Toosi, Mehrdad / Zargar, Seyed Jalal / Seyedjafari, Ehsan / Saberian, Mostafa / Ahmadi, Marziehsadat

    Cell journal

    2024  Volume 26, Issue 2, Page(s) 130–138

    Abstract: Objective: Mesenchymal stem cells (MSCs) are widely recognized as a promising cell type for therapeutic applications due to their ability to secrete and regenerate bioactive molecules. For effective bone healing, it is crucial to select a scaffold that ... ...

    Abstract Objective: Mesenchymal stem cells (MSCs) are widely recognized as a promising cell type for therapeutic applications due to their ability to secrete and regenerate bioactive molecules. For effective bone healing, it is crucial to select a scaffold that can support, induce, and restore biological function. Evaluating the scaffold should involve assessing MSC survival, proliferation, and differentiation. The principal aim of this investigation was to formulate composite nanofibrous scaffolds apt for applications in bone tissue engineering.
    Materials and methods: In this experimental study, nanofibrous scaffolds were fabricated using Poly-L-lactic acid (PLLA) polymer. The PLLA fibers' surface was modified by integrating collagen and hydroxyapatite (HA) nanoparticles.
    Results: The findings demonstrated that the collagen- and nanohydroxyapatite-modified electrospun PLLA scaffold positively influenced the attachment, growth, and osteogenic differentiation of MSCs.
    Conclusion: Coating the nanofiber scaffold with collagen and nanoparticle HA significantly enhanced the osteogenic differentiation of MSCs on electrospun PLLA scaffolds.
    Language English
    Publishing date 2024-02-01
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2647430-X
    ISSN 2228-5814 ; 2228-5806
    ISSN (online) 2228-5814
    ISSN 2228-5806
    DOI 10.22074/cellj.2024.2008921.1388
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Experimental Core Flooding Investigation of New ZnO-γAl

    Jafarbeigi, Ehsan / Ahmadi, Yaser / Mansouri, Mohsen / Ayatollahi, Shahab

    ACS omega

    2022  Volume 7, Issue 43, Page(s) 39107–39121

    Abstract: Generally, crude oil production in mature oil reservoirs is difficult. In this regard, some nanoparticles have been used to upgrade injected water into oil reservoirs. These nanoparticles can be used in a variety of injectable waters, including smart ... ...

    Abstract Generally, crude oil production in mature oil reservoirs is difficult. In this regard, some nanoparticles have been used to upgrade injected water into oil reservoirs. These nanoparticles can be used in a variety of injectable waters, including smart water (SMW) with special salinity. This study aims to evaluate the performance of the injection of SMW with ZnO-γAl
    Language English
    Publishing date 2022-10-17
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.2c04868
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