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Article ; Online: Recent advances in nanomaterials based biosensors

Aftab, Sikandar / Iqbal, Muhammad Zahir / Hussain, Sajjad / Kabir, Fahmid / Akman, Erdi / Hegazy, H.H.

Trends in Analytical Chemistry. 2023 Aug. 09, p.117223-

2023 , Page(s) 117223–

Abstract: Low-dimensional materials can be used to create highly sensitive, targeted, label-free, FET biosensors that can identify a variety of analytes. However, reliable biological FET is not yet available in the real world because it is hard to meet the strict ... ...

Abstract	Low-dimensional materials can be used to create highly sensitive, targeted, label-free, FET biosensors that can identify a variety of analytes. However, reliable biological FET is not yet available in the real world because it is hard to meet the strict requirements for highly sensitive and selective bio-FET fabrication. Two-dimensional materials, like graphene or transition metal dichalcogenides (TMDs), are used in devices called 2D FET-based biosensors as the active channel in a field-effect transistor (FET) configuration. 2D materials, are better candidates for high-performance biosensing due to their dramatic change in resistivity upon analyte adsorption or biomarkers detection, tunable electronic properties, high surface activities, sufficient stability, and layer-dependent semiconducting properties. We provide a brief overview of fascinating biosensing applications with a variety of architectural designs in this review article. This group of devices includes 2D TMDs-based FETs that incorporate graphene, reduced graphene oxide, quantum dots, nanoparticles, nanocomposites, nanorods, nanospheres, nanoflowers, and TMD/MXene heterostructures. These achievements show the exceptional capability of ultrahigh performance in biomarker detection in point-of-care diagnostics. The conclusion includes a summary of current opportunities and challenges.
Keywords	adsorption ; analytical chemistry ; biomarkers ; biosensors ; chemical species ; diagnostic techniques ; graphene ; graphene oxide ; nanocomposites ; nanoflowers ; nanoparticles ; nanorods ; nanospheres ; point-of-care systems ; transistors ; 2D TMDs ; Bio-FET ; Bio sensing ; Gas sensing ; MXene
Language	English
Dates of publication	2023-0809
Publishing place	Elsevier B.V.
Document type	Article ; Online
Note	Pre-press version
ZDB-ID	2014041-1
ISSN	0165-9936
ISSN	0165-9936
DOI	10.1016/j.trac.2023.117223
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Contemporary innovations in two-dimensional transition metal dichalcogenide-based P-N junctions for optoelectronics.

Elahi, Ehsan / Ahmad, Muneeb / Dahshan, A / Rabeel, Muhammad / Saleem, Sidra / Nguyen, Van Huy / Hegazy, H H / Aftab, Sikandar

Nanoscale

2023 Volume 16, Issue 1, Page(s) 14–43

Abstract: Two-dimensional transition metal dichalcogenides (2D-TMDCs) with various physical characteristics have attracted significant interest from the scientific and industrial worlds in the years following Moore's law. The p-n junction is one of the earliest ... ...

Abstract	Two-dimensional transition metal dichalcogenides (2D-TMDCs) with various physical characteristics have attracted significant interest from the scientific and industrial worlds in the years following Moore's law. The p-n junction is one of the earliest electrical components to be utilized in electronics and optoelectronics, and modern research on 2D materials has renewed interest in it. In this regard, device preparation and application have evolved substantially in this decade. 2D TMDCs provide unprecedented flexibility in the construction of innovative p-n junction device designs, which is not achievable with traditional bulk semiconductors. It has been investigated using 2D TMDCs for various junctions, including homojunctions, heterojunctions, P-I-N junctions, and broken gap junctions. To achieve high-performance p-n junctions, several issues still need to be resolved, such as developing 2D TMDCs of superior quality, raising the rectification ratio and quantum efficiency, and successfully separating the photogenerated electron-hole pairs, among other things. This review comprehensively details the various 2D-based p-n junction geometries investigated with an emphasis on 2D junctions. We investigated the 2D p-n junctions utilized in current rectifiers and photodetectors. To make a comparison of various devices easier, important optoelectronic and electronic features are presented. We thoroughly assessed the review's prospects and challenges for this emerging field of study. This study will serve as a roadmap for more real-world photodetection technology applications.
Language	English
Publishing date	2023-12-21
Publishing country	England
Document type	Journal Article ; Review
ZDB-ID	2515664-0
ISSN	2040-3372 ; 2040-3364
ISSN (online)	2040-3372
ISSN	2040-3364
DOI	10.1039/d3nr04547a
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Recent advancement in quantum dot-based materials for energy storage applications: a review.

Anil Kumar, Yedluri / Koyyada, Ganesh / Ramachandran, Tholkappiyan / Kim, Jae Hong / Hegazy, H H / Singh, Sangeeta / Moniruzzaman, Md

Dalton transactions (Cambridge, England : 2003)

2023 Volume 52, Issue 25, Page(s) 8580–8600

Abstract: The need for energy storage and conversion is growing as a result of the worsening consequences of climate change and the depletion of fossil fuels. Energy conversion and storage requirements are rising as a result of environmental problems including ... ...

Abstract	The need for energy storage and conversion is growing as a result of the worsening consequences of climate change and the depletion of fossil fuels. Energy conversion and storage requirements are rising as a result of environmental problems including global warming and the depletion of fossil fuels. The key to resolving the energy crisis is anticipated to be the quick growth of sustainable energy sources including solar energy, wind energy, and hydrogen energy. In this review, we have focused on discussing various quantum dots (QDs) and polymers or nanocomposites used for SCs and have provided examples of each type's performance. Effective QD use has really led to increased performance efficiency in SCs. The use of quantum dots in energy storage devices, batteries, and various quantum dots synthesis have all been emphasized in a number of great literature articles. In this review, we have homed in on the electrode materials based on quantum dots and their composites for storage and quantum dot based flexible devices that have been published up to this point.
Language	English
Publishing date	2023-06-27
Publishing country	England
Document type	Journal Article
ZDB-ID	1472887-4
ISSN	1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
ISSN (online)	1477-9234 ; 1364-5447
ISSN	0300-9246 ; 1477-9226
DOI	10.1039/d3dt00325f
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: First principle study of optoelectronic and mechanical properties of lead-free double perovskites Cs₂SeX₆ (X = Cl, Br, I)

Al-Muhimeed, Tahani I. / Aljameel, A. I. / Mera, Abeer / Saad, Saher / Nazir, Ghazanfar / Albalawi, Hind / Bouzgarrou, S. / Hegazy, H. H. / Mahmood, Q.

Journal of Taibah University for Science. 2022 Dec. 31, v. 16, no. 1 p.155-162

2022

Abstract: The variant double perovskites are considered novel materials for solar cells and optoelectronic applications. Here, we explored electronic, mechanical, and optical characteristics of Cs₂SeX₆ (X = Cl, Br, I) by density functional theory (DFT) analysis. ... ...

Abstract	The variant double perovskites are considered novel materials for solar cells and optoelectronic applications. Here, we explored electronic, mechanical, and optical characteristics of Cs₂SeX₆ (X = Cl, Br, I) by density functional theory (DFT) analysis. The tolerance factor between 0.97–1.0 signifies the structural stability of the investigated compounds while thermodynamic and mechanical stabilities were ensured by positive frequencies of phonon dispersion as well as elastic constants. Moreover, the Poisson and Pugh's ratios are explored for brittle and ductile behavior. The Debye and melting temperatures have also been reported through mechanical analysis. The tuning of the bandgap takes place from 3.10 to 2.64 eV and then 1.15 eV by substitution of Cl with Br and I, respectively. The optical spectra show a shift in absorption region from ultraviolet-to-visible. In addition, the low light reflection and optical energy loss range (0.0–3.0 eV) promises potential of the studied potential for solar cells and optoelectronics uses.
Keywords	absorption ; brittleness ; density functional theory ; energy ; thermodynamics ; Perovskites ; solar cells ; optoelectronics ; structural stability ; Debye temperature
Language	English
Dates of publication	2022-1231
Size	p. 155-162.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	2834710-9
ISSN	1658-3655
ISSN	1658-3655
DOI	10.1080/16583655.2022.2035927
Database	NAL-Catalogue (AGRICOLA)

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Article: Rapid Growth of TiO₂ Nanoflowers via Low-Temperature Solution Process: Photovoltaic and Sensing Applications.

Akhtar, M Shaheer / Umar, Ahmad / Sood, Swati / Jung, InSung / Hegazy, H H / Algarni, H

Materials (Basel, Switzerland)

2019 Volume 12, Issue 4

Abstract: This paper reports the rapid synthesis, characterization, and photovoltaic and sensing applications of TiO₂ nanoflowers prepared by a facile low-temperature solution process. The morphological characterizations clearly reveal the high-density growth of a ...

Abstract	This paper reports the rapid synthesis, characterization, and photovoltaic and sensing applications of TiO₂ nanoflowers prepared by a facile low-temperature solution process. The morphological characterizations clearly reveal the high-density growth of a three-dimensional flower-shaped structure composed of small petal-like rods. The detailed properties confirmed that the synthesized nanoflowers exhibited high crystallinity with anatase phase and possessed an energy bandgap of 3.2 eV. The synthesized TiO₂ nanoflowers were utilized as photo-anode and electron-mediating materials to fabricate dye-sensitized solar cell (DSSC) and liquid nitroaniline sensor applications. The fabricated DSSC demonstrated a moderate conversion efficiency of ~3.64% with a maximum incident photon to current efficiency (IPCE) of ~41% at 540 nm. The fabricated liquid nitroaniline sensor demonstrated a good sensitivity of ~268.9 μA mM
Language	English
Publishing date	2019-02-14
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma12040566
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Cation Incorporation and Synergistic Effects on the Characteristics of Sulfur-Doped Manganese Ferrites S@Mn(Fe

Nadeem, Sohail / Bukhari, Mehak / Javed, Mohsin / Iqbal, Shahid / Ahmad, Mirza Nadeem / Alrbyawi, Hamad / Al-Anazy, Murefah Mana / Elkaeed, Eslam B / Hegazy, H H / Qayyum, Muhammad Abdul / Pashameah, Rami Adel / Alzahrani, Eman / Farouk, Abd-ElAziem

Molecules (Basel, Switzerland)

2022 Volume 27, Issue 22

Abstract: In the present work, sulfur-doped manganese ferrites S@Mn( ... ...

Abstract	In the present work, sulfur-doped manganese ferrites S@Mn(Fe
MeSH term(s)	Sunlight ; Manganese/chemistry ; Catalysis ; Nanoparticles/chemistry ; Coloring Agents/chemistry ; Cations ; Sulfur
Chemical Substances	manganese ferrite ; Manganese (42Z2K6ZL8P) ; Coloring Agents ; Cations ; Sulfur (70FD1KFU70)
Language	English
Publishing date	2022-11-08
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27227677
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Article ; Online: The study of holmium substituted spinel ferrites for high frequency applications

Aman, Salma / Ahmad, Naseeb / Ejaz, Syeda Abida / AlObaid, Abeer A. / Al-Muhimeed, Tahani I. / Rehman, Adeela / Hegazy, H. H. / Khan, Abdul Rauf / Ejaz, Syeda Rabia / Farid, Hafiz Muhammad Tahir

Journal of Taibah University for Science. 2022 Dec. 31, v. 16, no. 1 p.463-471

2022

Abstract: The spinel ferrites are famous due to their unique electrical and magnetic performance. The current inspection is about the electrical and magnetic features of Holmium (Ho) substituted Co-Zn-ferrites (Co₀.₆Zn₀.₄HoₓFe₂₋ₓO₄; where x = 0.0 and 0.1). The ... ...

Abstract	The spinel ferrites are famous due to their unique electrical and magnetic performance. The current inspection is about the electrical and magnetic features of Holmium (Ho) substituted Co-Zn-ferrites (Co₀.₆Zn₀.₄HoₓFe₂₋ₓO₄; where x = 0.0 and 0.1). The Single-phase cubic configuration of prepared ferrites was perceived from X-ray diffraction data. The substituted sample has one order larger direct current (dc) resistivity as compared to the un-substituted sample. The substitution of Holmium decreased dielectric loss significantly. The dielectric study of samples was completed within the frequency range of 0.1–20 MHz. The comparison of dielectric parameters for different temperature values was measured. The magnetic characterization was done within the applied field of 2 kOe. The evaluated properties of samples like larger dc resistivity and less dielectric loss showed that the materials can be utilized in high-frequency applications.
Keywords	X-ray diffraction ; holmium ; magnetism ; temperature ; Resistivity ; spinel ferrites ; magnetization ; dielectric constant ; SEM
Language	English
Dates of publication	2022-1231
Size	p. 463-471.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	2834710-9
ISSN	1658-3655
ISSN	1658-3655
DOI	10.1080/16583655.2021.1988440
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Sunlight-Driven Photocatalytic Degradation of Methyl Orange Based on Bismuth Ferrite (BiFeO₃) Heterostructures Composed of Interconnected Nanosheets.

Ruby, S / Rosaline, D Rani / Inbanathan, S S R / Anand, K / Kavitha, G / Srinivasan, R / Umar, Ahmad / Hegazy, H H / Algarni, Hamed

Journal of nanoscience and nanotechnology

2019 Volume 20, Issue 3, Page(s) 1851–1858

Abstract: Herein, we report the facile microwave-assisted synthesis, characterization and photocatalytic degradation applications of Bismuth ferrite heterostructures composed of interconnected nanosheets (BHNs). The synthesized materials were subjected to several ... ...

Abstract	Herein, we report the facile microwave-assisted synthesis, characterization and photocatalytic degradation applications of Bismuth ferrite heterostructures composed of interconnected nanosheets (BHNs). The synthesized materials were subjected to several analytical studies such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy and UV-visible spectroscopy in order to examine the morphological, structural, optical and photo catalytic properties. The structural and morphological characterizations confirmed the rhombohedral perovskite crystal structure and the formation of heterostructures composed of interconnected nanosheets for the synthesized material. The compositional characterization revealed that the synthesized material is bismuth ferrite with high purity. The BHNs were further used as efficient photocatalyst for the photocatalytic degradation of highly hazardous pollutant methyl orange under sunlight irradiation. The sunlight driven photocatalytic experiments revealed ~86% photodegradation of methyl orange dye in 150 min. The presented work revealed that the synthesized BHNs are excellent material for the photocatalytic degradation of various organic contaminants and hazardous pollutants.
Language	English
Publishing date	2019-09-02
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1533-4899
ISSN (online)	1533-4899
DOI	10.1166/jnn.2020.17174
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Effect of Nickel Doping on the Properties of Hydroxyapatite Nanoparticles.

Kurinjinathan, P / Thanigai Arul, K / Ramana Ramya, J / Manikandan, E / Hegazy, H H / Umar, Ahmad / Algarni, H / Ahmad, Naushad

Journal of nanoscience and nanotechnology

2019 Volume 20, Issue 4, Page(s) 2482–2487

Abstract: Herein, we studied the effect of nickel (Ni) doping on the properties of hydroxyapatite (HAp) nanoparticles synthesized by facile ultrasonication assisted wet chemical synthesis process. Various doping concentrations of nickel, i.e., 0.01 M, 0.05 M and 0. ...

Abstract	Herein, we studied the effect of nickel (Ni) doping on the properties of hydroxyapatite (HAp) nanoparticles synthesized by facile ultrasonication assisted wet chemical synthesis process. Various doping concentrations of nickel, i.e., 0.01 M, 0.05 M and 0.10 M, were used to dope into hydroxyapatite nanoparticles. The synthesized nanoparticles were characterized by X-ray diffraction (XRD) pattern, scanning electron spectroscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, UV-Visible spectroscopy and Raman-scattering spectroscopy. The detailed structural characterizations confirmed that the crystallite sizes of the Ni-doped hydroxyapatite nanoparticles were reduced up to 53% compared to pure hydroxyapatite upon the doping of different concentrations of Ni ions. The agglomeration in the nanoparticles was also reduced by increasing the doping concentration of Ni ions. The XRD studies revealed that the average crystallite size of the synthesized Ni-doped HAp was decreased with increasing the concentration of Ni
Language	English
Publishing date	2019-09-02
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1533-4899
ISSN (online)	1533-4899
DOI	10.1166/jnn.2020.17182
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Eucalyptus Concoction Mediated Synthesis of Gold Nanoparticles and Its Bioactive Role Explored via Antimicrobial and Cytotoxic Studies.

Muthiah, Bavanilatha / Muthukrishnan, Lakshmipathy / Anita Lett, J / Sagadevan, Suresh / Kesavan, Sudha / Vennila, Selvaraj / Ajmal Khan, M / Hegazy, H H / Ahmad, Naushad

Journal of nanoscience and nanotechnology

2020 Volume 20, Issue 10, Page(s) 6326–6333

Abstract: Biosynthesis of nanoparticles has now become a novel trend in addressing some of the environmental issues by adopting eco-friendly approaches in manoeuvring nanoparticles for various applications. Plants and micro-organisms have been the potential ... ...

Abstract	Biosynthesis of nanoparticles has now become a novel trend in addressing some of the environmental issues by adopting eco-friendly approaches in manoeuvring nanoparticles for various applications. Plants and micro-organisms have been the potential sources of the biological mode of synthesizing nanoparticles as part of their bioremediation process. This principle has been harnessed for synthesizing nanoparticles either extra or intracellularly. In this line of phyto-mediated synthesis, eucalyptus buds have been used for synthesizing gold nanoparticles (Au NPs) under optimized laboratory conditions. The UV-visible spectrum of the Au NPs showed typical surface plasmon resonance at 550 nm (
MeSH term(s)	Anti-Bacterial Agents/toxicity ; Anti-Infective Agents/pharmacology ; Escherichia coli ; Eucalyptus ; Gold ; Metal Nanoparticles ; Microbial Sensitivity Tests ; Plant Extracts ; Spectroscopy, Fourier Transform Infrared
Chemical Substances	Anti-Bacterial Agents ; Anti-Infective Agents ; Plant Extracts ; Gold (7440-57-5)
Language	English
Publishing date	2020-05-08
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1533-4899
ISSN (online)	1533-4899
DOI	10.1166/jnn.2020.17897
Database	MEDical Literature Analysis and Retrieval System OnLINE

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