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  • 1
    Online Resource
    Online Resource
    Inorganic nanorods direct neuronal differentiation of bone marrow-derived mesenchymal stem cells
    IOP Publishing ; 2023
    In:  Biomedical Materials Vol. 18, No. 4 ( 2023-07-01), p. 045020-
    Details
    In: Biomedical Materials, IOP Publishing, Vol. 18, No. 4 ( 2023-07-01), p. 045020-
    Abstract: Mesenchymal stem cells (MSCs) are multipotent cells and are considered a potential source for tissue and organ repair due to their self-renewal, proliferation, and differentiation abilities. However, in most cases, MSCs are needed to be stimulated with external growth factors to promote their proliferation and differentiation. Over the past decade, it has been demonstrated that nanomaterials could facilitate MSC proliferation and differentiation, and excellent efforts are carried out to investigate their possible modulating pattern and mechanisms for MSC differentiation. Europium hydroxide (Eu III (OH) 3 ) nanorods (EHN) are well-researched for their biomimicking properties and act as a substitute for growth factors that induce cell proliferation, migration, and differentiation. In the current study, the human MSCs were chosen as an in vitro model for evaluating the role of EHN in modulating the differentiation process of MSCs into neuronal and glial lineages. The characterization of MSCs and differentiated neuronal cells observed by flow cytometry, confocal, and gene marker expression studies supported our hypothesis that the EHNs are pro-angiogenic and pro-neurogenic. Finally, altogether our results suggest that EHNs have the potential to play an essential part in developing novel treatment strategies for neurodegenerative diseases and spinal cord injuries based on the nanomedicine approach.
    Type of Medium: Online Resource
    ISSN: 1748-6041 , 1748-605X
    URL: Article
    DOI: 10.1088/1748-605X/acd097
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2233169-4
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  • 2
    Online Resource
    Online Resource
    Observation of photonic spin-momentum locking due to coupling of achiral metamaterials and quantum dots
    IOP Publishing ; 2021
    In:  Journal of Physics: Condensed Matter Vol. 33, No. 1 ( 2021-01-06), p. 015701-
    Details
    In: Journal of Physics: Condensed Matter, IOP Publishing, Vol. 33, No. 1 ( 2021-01-06), p. 015701-
    Abstract: Chiral interfaces provide a new platform to execute quantum control of light-matter interactions. One phenomenon which has emerged from engineering such nanophotonic interfaces is spin-momentum locking akin to similar reports in electronic topological materials and phases. While there are reports of spin-momentum locking with combination of chiral emitters and/or chiral metamaterials with directional far field excitation it is not readily observable with both achiral emitters and metamaterials. Here, we report the observation of photonic spin-momentum locking in the form of directional and chiral emission from achiral quantum dots (QDs) evanescently coupled to achiral hyperbolic metamaterials (HMM). Efficient coupling between QDs and the metamaterial leads to emergence of these photonic topological modes which can be detected in the far field. We provide theoretical explanation for the emergence of spin-momentum locking through rigorous modeling based on photon Green’s function where pseudo spin of light arises from coupling of QDs to evanescent modes of HMM.
    Type of Medium: Online Resource
    ISSN: 0953-8984 , 1361-648X
    URL: Article
    DOI: 10.1088/1361-648X/abb650
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 1472968-4
    detail.hit.zdb_id: 228975-1
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  • 3
    Online Resource
    Online Resource
    An Efficient Cooling Tower for a Stationary Engine
    IOP Publishing ; 2020
    In:  IOP Conference Series: Earth and Environmental Science Vol. 573, No. 1 ( 2020-10-01), p. 012017-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 573, No. 1 ( 2020-10-01), p. 012017-
    Abstract: Cooling tower is a type of heat exchanger used to dissipate the unwanted heat from a medium into the atmosphere. A well-designed cooling tower provides prolong contact time for water with air and breaks down the water to have large surface area to promote the heat transfer rate. In the present work, an induced draft cooling tower is fabricated and used with a stationary IC Engine to minimize the overall usage of water. The performance of the tower with two different bed materials (Jute carpet & Polystyrene balls) with and without wire mesh at three different water flow rates viz., 12, 18 and 30 lpm are studied. The cooling tower parameters such as range, approach, efficiency, effectiveness, heat loss, windage losses, and evaporative losses are calculated from the experimental data. At higher flow rates, jute carpets with wire mesh provided optimal results for the parameters while at low flow rates polystyrene balls are found to provide better results. The experimental results showed that the efficiency of the cooling tower increased by 67% as the flow rate increased from 12 lpm to 30 lpm with jute carpet and wire mesh, whereas the efficiency decreases as the flow rate increases with polystyrene as the bed material. Also, the similar trend is observed for the effectiveness of cooling tower.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/573/1/012017
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2434538-6
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  • 4
    Online Resource
    Online Resource
    AlGaN/GaN HEMT for highly sensitive detection of Bio-molecules using transconductance method
    IOP Publishing ; 2020
    In:  IOP Conference Series: Materials Science and Engineering Vol. 872, No. 1 ( 2020-06-01), p. 012048-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 872, No. 1 ( 2020-06-01), p. 012048-
    Abstract: For the first time, AlGaN/GaN HEMT is demonstrated for bio-sensing application using transconductance analysis. A lot of HEMT based biosensors were developed experimentally but very few reported on sensing applications. These devices are ideal for sensing or tracking biomolecule because of the spontaneous and piezoelectric polarization properties. AlGaN/GaN HEMT with nanogap cavity is used to detect different biomolecule like streptavidin, protein and uricase. The sensitivity of AlGaN/GaN HEMT is investigated through drain current (ID) and transconductance(gm) and is analyzed using Technology Computer Aided Design (TCAD) tool. The result shows a noticeable change in drain current on introducing different biomolecules below the gate cavity region. Higher sensitivity was obtained for with Transconductance analysis than with drain current analysis.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/872/1/012048
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2506501-4
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  • 5
    Online Resource
    Online Resource
    Structural, microstructural and magnetocaloric properties of Gd 1-x Ga x alloys
    IOP Publishing ; 2019
    In:  Materials Research Express Vol. 6, No. 7 ( 2019-04-17), p. 076556-
    Details
    In: Materials Research Express, IOP Publishing, Vol. 6, No. 7 ( 2019-04-17), p. 076556-
    Type of Medium: Online Resource
    ISSN: 2053-1591
    URL: Article
    DOI: 10.1088/2053-1591/ab1669
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2019
    detail.hit.zdb_id: 2760382-9
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  • 6
    Online Resource
    Online Resource
    Mathematical Model for Natural Frequency of Prestressed Concrete beam using STAAD.Pro.
    IOP Publishing ; 2021
    In:  IOP Conference Series: Materials Science and Engineering Vol. 1025, No. 1 ( 2021-01-01), p. 012008-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 1025, No. 1 ( 2021-01-01), p. 012008-
    Abstract: The problem of assessing the variation in natural frequency of a prestressed and un-prestressed beam has been of considerable interest to Structural Engineers. The objective of the present work is to find the effect of pre-stressing on Natural frequency of a Concrete beam and thereby establishing a relationship between the natural frequency of 1st mode of vibration and other modes. Conventional methods were used to calculate the natural frequency of 1 to 5 modes of vibration for un-prestressed beams while STAAD.Pro was used for assessing the same for prestressed beams. A 20 m span beam with different live loads and cross-sections were considered for the study. From the results, it was observed that as the cross-section of the beam increases, the natural frequency decreases. Comparing the natural frequency of 1st mode of vibration for beams with and without prestressing, it can be observed that within the scope of this work, the natural frequency of the un-prestressed beam with live load 15 kN/m is more than that for the prestressed beam. For the other two load-carrying capacities, it is vice-versa. It was also observed that the % difference of Natural frequency of a particular mode of vibration w.r.t mode 1 natural frequency is almost constant. In other words, the effect of live load and cross-section is negligible on the % difference of Mode i to Mode 1 natural frequency. Based on this characteristic, a mathematical model has been developed.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/1025/1/012008
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2506501-4
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  • 7
    Online Resource
    Online Resource
    Remote Monitoring of COMA Patients Using Zigbee
    IOP Publishing ; 2020
    In:  IOP Conference Series: Materials Science and Engineering Vol. 993, No. 1 ( 2020-12-01), p. 012082-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 993, No. 1 ( 2020-12-01), p. 012082-
    Abstract: It is essential to monitor Coma patients continuously for understanding their health status. Smart sensors are used in gesture recognition in biomedical applications. The proposed system is designed with Flex sensors, Eye blink sensors, MEMS body sensor for monitoring continuously. Flex sensor detects the movements in hands and sends information in wireless. Eye blink sensors detects in any motions in the eye & MEMS detects the patient’s leg movements. Sensor signals are transmitted by Zigbee and viewed in PC in the absence of Physician. Detection of change due to movements in real time video is very important tool change may be usually made the patients in the absence of the doctor, with the help of frames comparison approach. The proposed system will assist the Physician and sends alerts whenever it is required.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/993/1/012082
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2506501-4
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  • 8
    Online Resource
    Online Resource
    Signatures of spin-phonon coupling in hematite crystallites through dielectric and Raman spectroscopy
    IOP Publishing ; 2021
    In:  EPL (Europhysics Letters) Vol. 134, No. 4 ( 2021-05-01), p. 47003-
    Details
    In: EPL (Europhysics Letters), IOP Publishing, Vol. 134, No. 4 ( 2021-05-01), p. 47003-
    Type of Medium: Online Resource
    ISSN: 0295-5075 , 1286-4854
    URL: Article
    DOI: 10.1209/0295-5075/134/47003
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 1465366-7
    detail.hit.zdb_id: 165776-8
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  • 9
    Online Resource
    Online Resource
    Performance study of visible light communication through non-orthogonal multiple access (noma) – LI-FI
    IOP Publishing ; 2023
    In:  Journal of Physics: Conference Series Vol. 2484, No. 1 ( 2023-05-01), p. 012044-
    Details
    In: Journal of Physics: Conference Series, IOP Publishing, Vol. 2484, No. 1 ( 2023-05-01), p. 012044-
    Abstract: Li-Fi (Light Fidelity) is a new wireless communication technology that is comparable to Wireless Fidelity (Wi-Fi). However, Li-Fi is supposed to be better than Wi-Fi, and this has been theoretically verified. Li-Fi is also thought to make a significant contribution to wireless networks. The practical application of Li-Fi will be discussed in this study. In this paper we chose NOMA because of its ability and efficiency in simultaneously transporting data, as well as its application in 5G cellular networks. VLC stands for visible light communication, as the name implies. In this section, we will investigate how the data transporting capabilities of Li-Fi make use of the visible light emitted by light emitting diodes (LEDs). In this paper, the effectiveness of a non-orthogonal multiple access (NOMA) protocol used in a downlink visible light communication (VLC) system is evaluated for two distinct situations. On a two-user paired NOMA, we create an analytical expression of the system coverage probability for QoS provisioning and show that optimum power allocation coefficients do exist. Additionally, we establish the existence of optimal power allocation coefficients. Last but not least, the numerical and analytical results illustrated in our work show that the VLC single-cell system throughput obtained with our technique is better than that obtained with the earlier strategy. Additionally, it is shown that the suggested alternative lower bound fits the original NOMA-VLC GRPA objective asymptotically using indoor VLC channels.
    Type of Medium: Online Resource
    ISSN: 1742-6588 , 1742-6596
    URL: Article
    DOI: 10.1088/1742-6596/2484/1/012044
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2166409-2
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  • 10
    Online Resource
    Online Resource
    Attenuation of Shock Waves using Perforated Plates
    IOP Publishing ; 2017
    In:  IOP Conference Series: Materials Science and Engineering Vol. 225 ( 2017-08), p. 012059-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 225 ( 2017-08), p. 012059-
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/225/1/012059
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2017
    detail.hit.zdb_id: 2506501-4
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