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Nagal V, Masrat S, Khan M, Alam S, Ahmad A, Alshammari MB, Bhat KS, Novikov SM, Mishra P, Khosla A, Ahmad R. Highly Sensitive Electrochemical Non-Enzymatic Uric Acid Sensor Based on Cobalt Oxide Puffy Balls-like Nanostructure. Biosensors (Basel) 2023; 13:375. [PMID: 36979587 PMCID: PMC10046517 DOI: 10.3390/bios13030375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/06/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Early-stage uric acid (UA) abnormality detection is crucial for a healthy human. With the evolution of nanoscience, metal oxide nanostructure-based sensors have become a potential candidate for health monitoring due to their low-cost, easy-to-handle, and portability. Herein, we demonstrate the synthesis of puffy balls-like cobalt oxide nanostructure using a hydrothermal method and utilize them to modify the working electrode for non-enzymatic electrochemical sensor fabrication. The non-enzymatic electrochemical sensor was utilized for UA determination using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The puffy balls-shaped cobalt oxide nanostructure-modified glassy carbon (GC) electrode exhibited excellent electro-catalytic activity during UA detection. Interestingly, when we compared the sensitivity of non-enzymatic electrochemical UA sensors, the DPV technique resulted in high sensitivity (2158 µA/mM.cm2) compared to the CV technique (sensitivity = 307 µA/mM.cm2). The developed non-enzymatic electrochemical UA sensor showed good selectivity, stability, reproducibility, and applicability in the human serum. Moreover, this study indicates that the puffy balls-shaped cobalt oxide nanostructure can be utilized as electrode material for designing (bio)sensors to detect a specific analyte.
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Affiliation(s)
- Vandana Nagal
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Sakeena Masrat
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Marya Khan
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Shamshad Alam
- Department of Pharmacology & Therapeutics, Rosewell Park Cancer Institute, Elm Street & Carlton Street, Buffalo, NY 14263, USA
| | - Akil Ahmad
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Mohammed B. Alshammari
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Kiesar Sideeq Bhat
- Department of Bioresources, University of Kashmir, Hazratbal, Srinagar 190006, India
- Singapore-MIT Alliance for Research and Technology (SMART), Critical Analytics for Manufacturing Personalized-Medicine (CAMP), Create Way 138602, Singapore
| | - Sergey M. Novikov
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia
| | - Prabhash Mishra
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Ajit Khosla
- Department of Applied Chemistry, School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710126, China
| | - Rafiq Ahmad
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
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Kumar V, Chauhan HC, Nagal V, Hafiz AK, Singh K. Lattice-Distortion-Induced Change in the Magnetic Properties in Br-Defect Host CsPbBr 3 Perovskite Quantum Dots. J Phys Chem Lett 2023; 14:888-896. [PMID: 36662270 DOI: 10.1021/acs.jpclett.2c03576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Herein, we report temperature- and field-induced magnetic states in CsPbBr3 perovskite quantum dots (PQDs) attributed to Br defects. We find that temperature-dependent structural distortion is the main source of various temperature-induced magnetic states in Br-defect host CsPbBr3 PQDs. Comprehensively examined magnetization data through Arrott plots, Langevin and Brillouin function fitting, and structural analysis reveal the presence of various oxidation states (i.e., Pb0, Pb+, Pb2+, and Pb3+) yielding different magnetic states, such as diamagnetic states above 90 K, paramagnetic states below ≈90 K, and perhaps locally ordered states between 58 and 90 K. It is realized from theoretical fits that paramagnetic ions exist (i.e., superparamagnetic behavior) due to Br defects causing Pb+ (and/or Pb3+ ions) in the diamagnetic region. We anticipate that our findings will spur future research of the development of spin-optoelectronics, such as spin light-emitting diodes, and spintronics devices based on CsPbBr3 PQDs.
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Affiliation(s)
- Virendra Kumar
- School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi110067, India
| | - Harish Chandr Chauhan
- School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi110067, India
| | - Vandana Nagal
- Quantum and Nano-photonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University), New Delhi110025, India
| | - Aurangzeb Khurram Hafiz
- Quantum and Nano-photonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University), New Delhi110025, India
| | - Kedar Singh
- School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi110067, India
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Nagal V, Khan M, Masrat S, Alam S, Ahmad A, Alshammari M, Bhat KS, Ahmad R. Hexagonal Cobalt Oxide Nanosheets Based Enzymeless Electrochemical Uric Acid Sensor with Improved Sensitivity. NEW J CHEM 2023. [DOI: 10.1039/d2nj06331j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Enzymeless sensors have been known as highly stable, fast, and reliable devices for several biomolecule detection and early disease diagnosis. Hence, it is crucial to fabricate enzymeless sensors with high...
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Masrat S, Nagal V, Khan M, Moid I, Alam S, Bhat KS, Khosla A, Ahmad R. Electrochemical Ultrasensitive Sensing of Uric Acid on Non-Enzymatic Porous Cobalt Oxide Nanosheets-Based Sensor. Biosensors (Basel) 2022; 12:1140. [PMID: 36551107 PMCID: PMC9775216 DOI: 10.3390/bios12121140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Transition metal oxide (TMO)-based nanomaterials are effectively utilized to fabricate clinically useful ultra-sensitive sensors. Different nanostructured nanomaterials of TMO have attracted a lot of interest from researchers for diverse applications. Herein, we utilized a hydrothermal method to develop porous nanosheets of cobalt oxide. This synthesis method is simple and low temperature-based. The morphology of the porous nanosheets like cobalt oxide was investigated in detail using FESEM and TEM. The morphological investigation confirmed the successful formation of the porous nanosheet-like nanostructure. The crystal characteristic of porous cobalt oxide nanosheets was evaluated by XRD analysis, which confirmed the crystallinity of as-synthesized cobalt oxide nanosheets. The uric acid sensor fabrication involves the fixing of porous cobalt oxide nanosheets onto the GCE (glassy carbon electrode). The non-enzymatic electrochemical sensing was measured using CV and DPV analysis. The application of DPV technique during electrochemical testing for uric acid resulted in ultra-high sensitivity (3566.5 µAmM-1cm-2), which is ~7.58 times better than CV-based sensitivity (470.4 µAmM-1cm-2). Additionally, uric acid sensors were tested for their selectivity and storage ability. The applicability of the uric acid sensors was tested in the serum sample through standard addition and recovery of known uric acid concentration. This ultrasensitive nature of porous cobalt oxide nanosheets could be utilized to realize the sensing of other biomolecules.
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Affiliation(s)
- Sakeena Masrat
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Vandana Nagal
- Quantum and Nanophotonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Marya Khan
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Iqra Moid
- Department of Life Science, Shakuntala Memorial Educational Institute, Bahraich 271870, India
| | - Shamshad Alam
- Department of Pharmacology & Therapeutics, Rosewell Park Cancer Institute, Elm Street & Carlton Street, Buffalo, NY 14263, USA
| | - Kiesar Sideeq Bhat
- Department of Bioresources, University of Kashmir, Hazratbal, Srinagar 190006, India
- Singapore-MIT Alliance for Research and Technology (SMART), Critical Analytics for Manufacturing Personalized-Medicine (CAMP), Create Way 138602, Singapore
| | - Ajit Khosla
- Department of Applied Chemistry, School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710126, China
| | - Rafiq Ahmad
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
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Khan M, Nagal V, Masrat S, Tuba T, Alam S, Bhat KS, Wahid I, Ahmad R. Vertically Oriented Zinc Oxide Nanorod-Based Electrolyte-Gated Field-Effect Transistor for High-Performance Glucose Sensing. Anal Chem 2022; 94:8867-8873. [PMID: 35699939 DOI: 10.1021/acs.analchem.1c05630] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterial-based biosensors are a promising fit for portable and field-deployable diagnosis sensor devices due to their mass production, miniaturization, and integration capabilities. However, the fabrication of highly stable and reproducible biosensor devices is challenging. In this work, we grow a vertically oriented architecture of zinc oxide nanorods onto the active working area (i.e., the channel between the source and drain) of a field-effect transistor (FET) using a low-temperature hydrothermal method. The glucose oxidase enzyme was immobilized on the zinc oxide nanorod surface by a physical adsorption method to fabricate the electrolyte-gated FET-based glucose biosensor. The electrical properties of the electrolyte-gated FET biosensor were measured with different glucose concentrations. We found a linear increase in current up to 80 mM glucose concentration with high sensitivity (74.78 μA/mMcm2) and a low detection limit (∼0.05 mM). We illustrate a highly reproducible fabrication process of zinc oxide nanorod-based FETs, where vertically grown nanorods with a higher surface-to-volume ratio enhance the enzyme immobilization, provide a microenvironment for longer enzyme activity, and translate to better glucose sensing parameters. Additionally, our electrolyte-gated FET biosensor showed promising application in freshly drawn mouse blood samples. These findings suggest a great opportunity to translate into practical high-performance biosensors for a broad range of analytes.
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Affiliation(s)
- Marya Khan
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Vandana Nagal
- Quantum and Nano Photonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Sakeena Masrat
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Talia Tuba
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Shamshad Alam
- Department of Pharmacology & Therapeutics, Rosewell Park Cancer Institute, Elm Street and Carlton Street, Buffalo, New York 14263, United States
| | - Kiesar Sideeq Bhat
- HP-NTU Digital Manufacturing Laboratory and Department of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 639798.,Department of Bioresources, University of Kashmir, Hazratbal, Srinagar 190006, India
| | - Iram Wahid
- Department of Biosciences, Integral University, Lucknow 226026, India
| | - Rafiq Ahmad
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi 110025, India
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Nagal V, Tuba T, Kumar V, Alam S, Ahmad A, Alshammari MB, Hafiz AK, Ahmad R. A non-enzymatic electrochemical sensor composed of nano-berry shaped cobalt oxide nanostructures on a glassy carbon electrode for uric acid detection. NEW J CHEM 2022. [DOI: 10.1039/d2nj01961b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Non-enzymatic electrochemical uric acid sensor fabrication with excellent performance using nano-berry shaped cobalt oxide nanostructures on a glassy carbon electrode.
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Affiliation(s)
- Vandana Nagal
- Quantum and Nanophotonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Talia Tuba
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Virendra Kumar
- Nanotechnology Lab, School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi-110067, India
| | - Shamshad Alam
- Department of Pharmacology & Therapeutics, Rosewell Park Cancer Institute, Elm Street & Carlton Street, Buffalo, NY-14263, USA
| | - Akil Ahmad
- Chemistry Department, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj-11942, Saudi Arabia
| | - Mohammed B. Alshammari
- Chemistry Department, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj-11942, Saudi Arabia
| | - Aurangzeb Khurram Hafiz
- Quantum and Nanophotonics Research Laboratory, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Rafiq Ahmad
- Sensors Lab, Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
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Kumar V, Nagal V, Srivastava S, Kumar M, Gupta BK, Hafiz AK, Singh K. Power Dependent Hot Carrier Cooling Dynamics in Trioctylphosphine Capped CsPbBr
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Perovskite Quantum Dots Using Ultrafast Spectroscopy. ChemistrySelect 2021. [DOI: 10.1002/slct.202102450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Virendra Kumar
- Nanotechnology Lab School of Physical Sciences Jawaharlal Nehru University (JNU) New Delhi 110067 India
| | - Vandana Nagal
- Quantum and Nano-photonics Research Laboratory Centre for Nanoscience and Nanotechnology Jamia Millia Islamia (A Central University) New Delhi 110025 India
| | - Shubhda Srivastava
- CSIR - National Physical Laboratory Dr. K. S. Krishnan Road New Delhi 110012 India
| | - Mahesh Kumar
- CSIR - National Physical Laboratory Dr. K. S. Krishnan Road New Delhi 110012 India
| | - Bipin K. Gupta
- CSIR - National Physical Laboratory Dr. K. S. Krishnan Road New Delhi 110012 India
| | - Aurangzeb K. Hafiz
- Quantum and Nano-photonics Research Laboratory Centre for Nanoscience and Nanotechnology Jamia Millia Islamia (A Central University) New Delhi 110025 India
| | - Kedar Singh
- Nanotechnology Lab School of Physical Sciences Jawaharlal Nehru University (JNU) New Delhi 110067 India
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Nagal V, Kumar V, Khan M, AlOmar SY, Tripathy N, Singh K, Khosla A, Ahmad N, Hafiz AK, Ahmad R. A highly sensitive uric acid biosensor based on vertically arranged ZnO nanorods on a ZnO nanoparticle-seeded electrode. NEW J CHEM 2021. [DOI: 10.1039/d1nj03744g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Vertically-arranged ZnO nanorods grown on a ZnO nanoparticle-seeded FTO electrode using a hydrothermal method for highly sensitive uric acid biosensor fabrication.
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Affiliation(s)
- Vandana Nagal
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Virendra Kumar
- Nanotechnology Lab, School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi-110067, India
| | - Marya Khan
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
| | - Suliman Yousef AlOmar
- Zoology Department, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia
| | - Nirmalya Tripathy
- Departments of Pharmacy, Oregon State University, Corvallis, OR-97331, USA
| | - Kedar Singh
- Nanotechnology Lab, School of Physical Sciences, Jawaharlal Nehru University (JNU), New Delhi-110067, India
| | - Ajit Khosla
- Department of Mechanical Systems Engineering, Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia
| | | | - Rafiq Ahmad
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi-110025, India
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Kumar V, Nagal V, Kumar R, Srivastava S, Gupta BK, Kumar M, Hafiz AK, Singh K. Influence of the rate of radiation energy on the charge-carrier kinetics application of all-inorganic CsPbBr 3 perovskite nanocrystals. RSC Adv 2020; 10:34651-34657. [PMID: 35514400 PMCID: PMC9056796 DOI: 10.1039/d0ra05766e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/28/2020] [Indexed: 11/30/2022] Open
Abstract
In the field of optoelectronics, all-inorganic CsPbBr3 perovskite nanocrystals (PNCs) have gained significant interest on account of their superb processability and ultra-high stability among all the counterparts. In this study, we conducted an in-depth analysis of CsPbBr3 PNCs using joint transient optical spectroscopies (time-resolved photoluminescence and ultrafast transient absorption) in a very comprehensive manner. In order to understand the in-depth analysis of excited-state kinetics, the transient absorption spectroscopy has been performed. The structure of interest of CsPbBr3 PNCs was subjected to the rates of the radiation energy of 0.10 mW (κr/κnr = ∼0.62) and 0.30 mW (κr/κnr = ∼0.64). With the rate of radiation energy 0.30 mW, it was observed that there was a significant increase in hot carrier relaxation together with high radiative recombination, resulting in a decrease in charge trappings. Herein, we demonstrate that the tuning of the rate of radiation energies helps to understand the charge-carrier kinetics of CsPbBr3 PNCs, which would thus improve the manufacturing of efficient photovoltaic devices. A mechanistic framework for hot carrier cooling process in CsPbBr3 PNC is depicted via transient absorption spectroscopy.![]()
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Affiliation(s)
- Virendra Kumar
- Nanotechnology Lab
- School of Physical Sciences
- Jawaharlal Nehru University (JNU)
- New Delhi-110067
- India
| | - Vandana Nagal
- Quantum and Nanophotonics Research Laboratory
- Centre for Nanoscience and Nanotechnology
- Jamia Millia Islamia (A Central University)
- New Delhi-110025
- India
| | - Rahul Kumar
- Nanotechnology Lab
- School of Physical Sciences
- Jawaharlal Nehru University (JNU)
- New Delhi-110067
- India
| | - Shubhda Srivastava
- Academy of Scientific and Innovative Research (AcSIR)
- Ghaziabad-201002
- India
- CSIR – National Physical Laboratory
- New Delhi-110012
| | | | - Mahesh Kumar
- CSIR – National Physical Laboratory
- New Delhi-110012
- India
| | - Aurangzeb Khurram Hafiz
- Quantum and Nanophotonics Research Laboratory
- Centre for Nanoscience and Nanotechnology
- Jamia Millia Islamia (A Central University)
- New Delhi-110025
- India
| | - Kedar Singh
- Nanotechnology Lab
- School of Physical Sciences
- Jawaharlal Nehru University (JNU)
- New Delhi-110067
- India
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Nagal V, Ganguly NK, Chakravarti RN. Immune complex mediated cardiac lesions in rats. Indian J Med Res 1984; 79:250-9. [PMID: 6746042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Nagal V, Chakravarti RN. Cardiac thrombosis in albino rats produced by high fat, high salt diet and unilateral kidney damage. Indian Heart J 1979; 31:279-85. [PMID: 521043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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