Mohammad Ehtisham Khan

Verified

Mohammad verified their affiliation via an institutional email.

Learn more

Verified

Mohammad verified their affiliation via an institutional email.

Learn more

• Doctor of Engineering
• Professor (Assistant) at Jazan University

A simplistic and environmentally friendly approach using electrochemically active biofilms (EABs) was developed for the synthesis of an Au–Graphene (Au–G) nanocomposite without the use of surfactants or capping agents. The as-prepared Au–G nanocomposite was characterized by X-ray diffraction, diffuse reflectance spectroscopy, Raman spectroscopy, X-...

This paper reports an environmentally benign, simple, cost efficient, one-step, surfactant free, and biogenic synthesis of a silver–graphene (Ag–graphene) nanocomposite using an electrochemically active biofilm (EAB). The EAB was used for the reduction of Ag+ to Ag0 onto the graphene sheets. The morphology, structure, composition, and optical prope...

This paper reports a novel one-pot biogenic synthesis of Au–SnO2 nanocomposite using electrochemically active biofilm. The synthesis, morphology and structure of the as-synthesized Au–SnO2 nanocomposite were in-depth studied and confirmed by UV-vis spectroscopy, photoluminescence spectroscopy, transmission electron microscopy, X-ray diffraction, an...

Tungsten oxide (WO3) nanorods were grown on graphene (G) nanosheets using a template-free and surfactant-less hydrothermal process at 200 °C. X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy analysis confirmed the purity of the as-synthesized sample. The synthesis was further confirmed by UV-vis diffuse refle...

Background: Sustainable and cost-effective approaches have not been fully explored. The photocatalysis process effectively removes toxic effluents and wastes, its efficiency is often hindered by suboptimal reaction parameter optimization, leading to excessive material degradation. Methods: This research investigates the successful synthesis of g-C...

Due to rapid industrial growth and the increased economic status of people, water sources across the globe are being significantly polluted with a wide array of effluents. Industrial, agronomic, and customary activities have led to the repeated infestation of water by discarded materials. Consequently, there is an urgent need for advanced technolog...

This research presents the synthesis of Fe-doped ZnS nanocomposites via a chemical route, exploring their photocatalytic activity against amoxicillin (AMX) and evaluating their hydrogen production potential. The synthesized nanocomposites were characterized by several state-of-the-art analytical techniques, such as XRD, SEM, PL, UV adsorption, Rama...

Mango peel is mango fruit waste, discarded without any use. These peels can be utilized to prepare an extract that exhibits many phytochemicals and phenolic compounds such as polyphenols, flavonoids, carotenoids, and vitamins. These compounds are utilized as a cost-effective stabilizer and reducing agent for the fabrication of different types of me...

This paper estimates friction stir welded joints’ ultimate tensile strength (UTS) and hardness using six supervised machine learning models (viz., linear regression, support vector regression, decision tree regression, random forest regression, K-nearest neighbour, and artificial neural network). Tool traverse speed, tool rotational speed, pin diam...

In this article, we report that the performance of GaAsSb/InGaAs double quantum well (DQW) heterostructure, which is useful in designing the infrared (IR) photodetectors, can be significantly enhanced through the application of both uni- and bi-axial pressure, as well as external electric field. These external stimuli modify the electronic band str...

Implementing greener approaches is a sustainable and eco-friendly methodology for nanocomposite synthesis. This work reports the sustainable fabrication of Fe-doped ZnS (Fe0.3Zn0.7S) nanocomposite and its broad-spectrum applications. The systematic characterization was carried out using several advanced analytical techniques. DLS, Zeta potential, S...

Synthetic membranes play a crucial role in a wide range of separation processes, including dialysis, electrodialysis, ultrafiltration, and pervaporation, with growing interest in synthetic emulsion membranes due to their precision, versatility, and ion exchange capabilities. These membranes enable tailored solutions for specific applications, such...

The treatment of infectious diseases is impacted by the emergence of multidrug-resistant microbiological infections. Due to the long-term usage of antibacterial clinical drugs, microbes develop resistance to clinical drugs. To take advantage of the potential of these families of chemicals, several derivatives of thiophene containing p-toluene sulfo...

Introduction: This review article gives an overview of the biogenic synthesis of metal nanoparticles (mNPs) while using Litchi chinensis extract as a reducing and stabilizing agent. The subtropical fruit tree i.e lychee contains phytochemicals such as flavonoids, terpenoids, and polyphenolic compounds which act as reducing agents and convert the m...

Magnesium oxide-based adsorbents (MGO-A) with different morphologies were synthesized via the hexamethylene tetramine-assisted hydrothermal method. The role of four anions in the reaction system, chloride (Cl ⁻ ), nitrate (NO 3 ⁻ ), sulfate (SO 4 2⁻ ), and acetate (C 2 H 3 O 2 2⁻ ) was systematically investigated to determine the properties of the...

The constant increase in population and as a result increase in industrial activities in many areas, such as textiles, cosmetics, leather, polymers, and food processing leads to the contamination of water sources with different dyes. Thus, the removal of dyes from contaminated water sources to make water reusable is the utmost requirement of the ti...

In this study, nanocomposites of different concentrations of zinc oxide nanoparticles impregnated with unsaturated polyester resin (UPR) were fabricated through the hand lay-up method. The amorphous behavior and granular morphology of synthesized ZnO/UPR nanocomposite were confirmed by X-ray diffraction (XRD), scanning electron microscopy (SEM), an...

In supercapacitors (SCs), cobaltite spinel is considered as an excellent electrode material because it is abundant on earth, cost-effective, and theoretically capable of achieving high capacitance values. However, there are number of factors that prevent spinel cobaltite from achieving its maximum theoretical specific capacitance, including low ele...

Innovative approaches such as photodynamic therapy (PDT) and photothermal therapy (PTT) have made nanomedicines a promising frontier in cancer theranostics. The combination of nanocarriers with photothermal agents and photosensitizers (PSs) has shown excellent promise for the diagnosis and the treatment of cancer, primarily at the cellular, vascula...

The measurement of glucose concentration is a fundamental daily care for diabetes patients, and therefore, its detection with accuracy is of prime importance in the field of health care. In this study, the fabrication of an electrochemical sensor for glucose sensing was successfully designed. The electrode material was fabricated using polyaniline...

In this study, we report the successful synthesis of Ni-doped ZnS nanocomposite via a green route using ethanolic crude extract of Avena fatua. The as-synthesized nanocomposite was comprehensively characterized using Dy�namic light scattering (DLS), Zeta potential, scanning electron microscopy (SEM), Transmission electron mi�croscopy (TEM), X-ray...

This review article covers the biogenic synthesis of metal nanoparticles (MNPs) having definite shape and size while using extract obtained from different biological sources such as bacteria, fungi, algae and plants. These biological materials are composed of chloroplast, thylakoid, different types of enzymes extracted from different biogenic sourc...

Fabrication and characterization of binary composite MgO/CuO nanostructures for the efficient photocatalytic ability to eliminate organic contaminants: A detailed spectroscopic analysis Design and eco-friendly fabrication of affordable and sustainable materials for the treatment of wastewater consisting of dyes, antibiotics, and other harmful subs...

With the increasing population worldwide more wastewater is created by human activities and discharged into the waterbodies. This is causing the contamination of aquatic bodies, thus disturbing the marine ecosystems. The rising population is also posing a challenge to meet the demands of fresh drinking water in the water-scarce regions of the world...

This article highlights the developing capabilities of low-cost activated biochar from bamboo waste used for Palladium (II) (Pd(II))) separation from man-made electroless plating solutions (ELP). From a novelty perspective, this article addresses the effect of coupled sonication and surfactant for the adsorptive elimination of Pd(II) on Bamboo stem...

Ammi visnaga is a biennial or annual herbaceous plant belonging to the family Apiaceae. For the first time, silver nanoparticles were synthesized using an extract of this plant. Biofilms are a rich source of many pathogenic organisms and, thus, can be the genesis of various disease outbreaks. In addition, the treatment of cancer is still a critical...

Benzodiazepines like nitrazepam are extensively used, both as prescribed medications and as illicit drug substitutes, and therefore detection is of prime importance. In this work, the electrochemical detection of nitrazepam using a graphitic carbon nitride (g-C3N4) modified electrode was investigated. The nitrogen-rich carbon material i.e., g-C3N4...

C-reactive protein (CRP) is produced by the liver in response to systemic inflammation caused by bacterial infection, trauma and internal organ failures. CRP serves as a potential biomarker in the precise diagnosis of cardiovascular risk, type-2 diabetes, metabolic syndrome, hypertension and various types of cancers. The pathogenic conditions indic...

We report the synthesis of Fe3O4/graphene (Fe3O4/Gr) nanocomposite for highly selective and highly sensitive peroxide sensor application. The nanocomposites were produced by a modified co-precipitation method. Further, structural, chemical, and morphological characterization of the Fe3O4/Gr was investigated by standard characterization techniques,...

Diabetes mellitus is linked to both short-term and long-term health problems. Therefore, its detection at a very basic stage is of utmost importance. Research institutes and medical organizations are increasingly using cost-effective biosensors to monitor human biological processes and provide precise health diagnoses. Biosensors aid in accurate di...

In this article, an analytical expression (model) for the capacitance of coplanar interdigitated (IDT) capacitive sensors of four 1- $n$ -1 patterns (such as 1-1-1, 1-3-1, 1-5-1, and 1-11-1) based on conformal mapping (CM) techniques has been obtained. An important feature of the proposed model is that it is universal and independent of any specif...

The main aim of this work is to establish a sensor MESH network using an ESP-MESH networking protocol with the ESP32 MCU (a Wi-Fi-enabled microcontroller) for indoor and outdoor air quality monitoring in real time. Each sensor node is deployed at a different location on the college campus and includes sensor arrays (CO2, CO, and air quality) interf...

The growing population, agriculture, industrialization, and unplanned urbanization today have led to a bulky quantity of organic and inorganic compounds that have an impact on soil and water quality. As well as industrial wastes, untreated domestic sewage sludge contributes to aquatic pollution with contaminants, such as phosphor, heavy metals, dye...

In the present study, a highly selective and sensitive electrochemical sensing platform for the detection of dopamine was developed with CuO nanoparticles embedded in N-doped carbon nanostructure (CuO@NDC). The successfully fabricated nanostructures were characterized by standard instrumentation techniques. The fabricated CuO@NDC nanostructures wer...

Despite growing research activity on hybrid organic-inorganic materials for new applications, it remains challenging to promote the growth and examine the morphologies of organic structures on porous material surfaces. In this study, the self-assembly of an organic synergy containing 8-hydroxyquinoline (8-HQ) and 1.10-phenan-throline (Phen) was ach...

Different approaches have been developed for the synthesis of various nanostructured materials with unique morphologies. This study demonstrated the photocatalytic and antimicrobial abilities of silver-loaded zinc oxide nanocomposites (Ag@ZnO NCs). Initially, ZnO with a unique mesoporous ellipsoidal morphology in the size range of 0.59 ± 0.11 × 0.3...

This study entailed the use of a biogenic and eco-benign approach for decorating silver nanoparticles (Ag NPs) onto a zeolitic imidazolate framework-8 (Ag/ZIF-8). The prepared Ag/ZIF-8 was characterized by various physicochemical techniques. To explore the possibilities provided by Ag NPs in ZIF-8 for electrochemical sensing applications, we furthe...

In this work, a completely non-intrusive type alternating current (a.c) voltagemeasurement system based on the novel capacitively coupled technique isproposed. In literature, most of the reported capacitive coupling techniquerequire a direct contact of sensor to the ground potential of power system.Human operator, whose body is in contact with the...

Carbon quantum dots (CQDs), the intensifying nanostructured form of carbon material, have exhibited incredible impetus in several research fields such as bio-imaging, bio-sensing, drug delivery systems, optoelectronics, photovoltaics, and photocatalysis, thanks to their exceptional properties. The CQDs show extensive photonic and electronic propert...

The present study investigated a tin oxide/cadmium sulfide (SnO2–CdS) nanostructure for enhancing the photocatalytic efficiency of CdS nanoparticles. Herein, the desired nanostructure was fabricated through a straightforward and cost-effective approach. The physicochemical properties of the fabricated nanostructure were analyzed by various characte...

Green synthesis has gained extensive attention in material science because of its sustainability and eco-friendliness in producing a wide range of nanomaterials. This study demonstrated the photocatalytic and antimicrobial abilities of green synthesized silver-embedded zinc oxide nanocomposites (Ag@ZnO NCs). Zinc oxide with a unique mesoporous elli...

The Fuel cells are probable to rapidly develop a source of low to zero-emission power generation for applications in portable technologies, electric and rechargeable automobiles. This is the matter of concern for renewable energy that is attractive and noteworthy owing to growing power demand. The uncertainty of the increasing oil values and eco-fr...

Metal oxide nanoparticles (MOx-NPs) have found several applications owing to their high-surface area-to-volume ratio, high reactivity, and good size distribution. The MOx-NPs utilizes in several applications which consist of energy storage, environmental refinements, sensing of gases, ceramic production, bio-medicine, catalysis and anti-corrosion,...

Silver-titania nanocomposites (Ag-TiO2 NCs) have unique functional attributes due to their photocatalytic and antibacterial properties. In this study, titania nanoparticles (TiO2-NPs) were successfully in-situ decorated with silver nanoparticles (Ag-NPs) using the aqueous extract of goji berries (Lycium barbarum L.) as a bioreducing and stabilizing...

To enhance the activities of advanced semiconductor photocatalysts, the charge carriers must be separated effectively. One strategy for achieving this is the use of heterogeneous structures, which can be prepared by hydrothermal synthesis and post-synthetic thermal and ultrasonic treatment. Herein, we report a mixed-phase composite of basic bismuth...

In this study, a SnO2/CeO2 nanostructured oxide was prepared by a sonication-based approach. The prepared SnO2/CeO2 nanostructured oxide was examined for its structural and morphological characteristics using powder X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray electron microscopy, and Brunauer–...

In this paper, we report the preparation of an SnO2/TiO2 nanocomposite (SnO2/TiO2 NC) for modifying a glassy carbon electrode (GCE) via a self-assembly approach; the SnO2/TiO2/GCE thus prepared was employed as a working electrode for the electrochemical detection of hydrazine (Hz) at room temperature. The detection of Hz as a model analyte was effi...

Increasing environmental concerns related to the use of antibiotics and organic dyes has resulted in a serious demand for effective methods to remove these compounds from industrial wastewater. To address this issue, there remains a need for advanced semiconductor photocatalysts with cost-effectiveness and better performance. Tuned properties (opti...

the cutting-edge area of nanosciences, and nanotechnology especially in the field of inorganic materials such as biogenic synthesis metal-metal oxides nanoparticles, carbon materials based on nanostructures/nanocomposites. Their applications in photocatalysis, photoelectrodes, photocurrent, antimicrobial performances. The main area of research of D...

There is an unremarkable development in human life by industrialization and modernization which consequences the harmful contamination in the fresh water. This contamination is rapidly growing by the use of a variety of organic dyes, inorganic and other harmful pollutants like chemicals, pesticides, soil erosion, etc. which causes the quality of fr...

Hydrazine is a well-known carcinogen and can cause several other adverse effects on human health such as respiratory issues, irritation of the eyes, liver and kidney problems, and dermal corrosion. An effective method is needed to detect the carcinogenic reagent like hydrazine. Tin oxide (SnO2)-modified graphitic carbon nitride (g-C3N4) decorated w...

The rapid progress of state-of-the-art carbon-based metals as a catalyst is playing a central role in the research area of chemical and materials engineering for effective visible-light-induced catalytic applications. Numerous admirable catalysts have been fabricated, but significant challenges persist to lower the cost and increase the action of c...

Antibiotics and organic dyes are both significant causes of water pollution, and their removal from, or degradation in, water systems can be difficult. To address this issue, SnO2-modified TiO2 nanocomposites (STOs) were fabricated using a sonication-impregnation method. The prepared STOs (STO-1, STO-2, and STO-3) were characterized through various...

Modern and daily applications such as air conditioners and humidifiers and moisture/humidity sensors are extensively used in several industrial process control, medical sciences, food manufacture, farming, home ventilation, meteorological weather forecasting, medical incubation, manufacturing of important electrical equipment’s, fabrication of semi...

The aerogels are porous with low density structures and have been explored in the range of applications including catalysis, thermal insulators, solar energy uses, piezoelectric, energy conversions-storage, low-temperature glass formation, sensors, adsorption, and photocatalysis. A variety of aerogels with unusual architect have been developed such...

Over the last decade, the assortment of metal, metal-oxide materials fabricated using several chemical and physical techniques have increased significantly. This chapter presents a notable explanation of the progressive development of the solid materials known as aerogels. Metal, metal-oxides aerogels can have unusual properties, such as, high surf...

A new Schiff base (HL2) ligand (4‐{2‐[(2‐hydroxy‐benzylidene)‐amino]‐ethyl}‐benzene‐1,2‐diol) has been synthesized by condensing of 4‐(2‐amino‐ethyl)‐benzene‐1,2‐diol and 2‐hydroxy‐benzaldehyde. In turn, its transition metal complexes were prepared, having the following general formulas: Ni(L2)2, Pd(L2)2, and Pt(L2)22Cl. The prepared ligand and its...

Magnesium fluoride nanoparticles (denoted as “MgF-NPs”) has raised great attention in recent years because of their wide utilization in biomedical studies. However, little is known about the anticandidal activity of MgF-NPs against opportunistic oral pathogen C. albicans. Thus, the study was designed to investigate the antibiofilm activity of MgF-N...

Na,O-co-doped-graphitic- carbon nitride (Na,O-g-C3N4) was synthesized under alkaline conditions and subsequent heat treatment. The Na,O-g-C3N4 had a relatively surface area and tuned optical properties with sheet-like characteristics. A glassy carbon electrode (GCE) was modified using the Na-O-g-C3N4 (Na,O-g-C3N4/GCE) and used for the non-enzymatic...

Glad to inform you about the International journal "Applied Sciences" ISSN no.(2582-5615). The journal articles have been published with DOI from Crossref. Dear colleagues I am inviting you to submit your research work in this journal. Your research contribution to this journal is highly appreciated. Thank you!

A phosphorus‐containing Schiff base was prepared from bis{3‐[2‐(4‐amino‐1,5‐dimethyl‐2‐phenylpyrazol‐3‐ylideneamino)ethyl]indol‐1‐ylmethyl}phosphinic acid and paraformaldehyde as a novel antibacterial compound. The reaction of the Schiff base ligand with VO(IV), Ni(II), Co(II), Cu(II), Zn(II), Cd(II), Hg(II), Pd(II) and Pt(IV) led to binuclear spec...