Shobhitkumar Kiritkumar Patel

• Ph.D
• Professor at Marwadi University

This research introduces a terahertz sensor that combines graphene and gold-based metasurfaces to detect glucose. The sensor's structure features two circular rings coated with gold, encircled by a square ring coated with MXene, all positioned on a SiO₂ substrate. The design achieves impressive sensitivity at 1000 GHzRIU⁻¹ when measuring refractive...

The identification and diagnosis of brain tumors present considerable challenges in medical imaging, requiring innovative diagnostic techniques that enable precise and minimally invasive examinations. This study proposes a metasurfaces design for early brain tumor detection. The design incorporates graphene, gold, and methylammonium lead halide on...

The increasing demand for advanced disease diagnostic solutions, particularly in developing regions, underscores the need for innovative biosensing technologies. This study introduces a protein detection biosensor that integrates graphene-based metasurfaces operating within the terahertz frequency range. The design exploits the unique optical prope...

Solar absorbers which provide higher energy output and cause less environmental damage are used in various applications. Thermal applications, such as heat conversions, are commonly used of solar absorbers. Adding graphene layers by Finite Element Method can further improve the efficiency of solar structure and the current absorber layers are made...

Solar energy is pure and renewable and diminishes greenhouse gas releases, thus being essential for sustainability and environmental protection. Numerous prototypes for solar absorbers made from different materials were analyzed. MXene behaves as constituents in the Metamaterial MXene Solar Absorber (MMSA), a structure that is characterized by the...

The aim was to optimize energy production and minimize energy losses with regard to sources of sustainable energy, particularly solar energy, by examining a variety of solar absorber designs developed from various materials. Metamaterial MXene/W-based Resonator Solar Absorber (MMRSA) using MXene and Tungsten material utilized in a resonator, which...

Fast and reliable virus detection like SARS-CoV-2, continues to pose significant challenges in the worldwide health administration. This study introduces a refractive index sensor designed for COVID-19 detection. The sensor leverages a SiO2-based substrate supporting two quadrant-shaped resonators and other metasurfaces designs. The material choice...

Traditional cancer screening and therapy techniques involve time-consuming, costly, and painful surgeries, chemicals, and radiotherapy. Early cancer detection approaches that are sensitive, affordable, and rapid have sparked significant attention. Optical biosensors offer great sensitivity, label-free detection, and compact size. This work proposes...

The surface plasmon resonance (the SPR phenomenon) sensors are currently being used as essential instruments for medical testing, particularly when it comes to the identification of biomarkers such as cancerous tumors. This square enclosed I-frame refractive index biosensor (SEIFRIB) for the determination of blood (Jurkat cell) and adrenal (PC12 ce...

As a new investigation for renewable energy generation, the recent three-layer solar structure is composited with three effective material usages of Al (resonator), InSb (substrate), and Ag (based). The overall wavelength of overall 2800 nm with the bandwidth order from 0.2 to 3.0 μm is 91.68%, the extracted percentage is 97.07% at 800 nm (1.41–2.2...

Water is one of the essential requirements for human life. Various types of impurities that are present in the drinking water can produce grave health concerns, affect body tissues, and may lead to death. Protozoan parasites are one of the major biological pollutants in the water, which are ordinarily transferred across during the oral-fecal path....

The effective solar absorber (three-layer type) to prevent the greenhouse effect and improve electricity generation has been designed with three different metals gold (Au) for the foundation layer, silver (Ag) for the resonator part construction, and the titanium nitride (TiN) is sandwiched between the two layers of silver and gold. The current thr...

Detection and quantification of Mycobacterium tuberculosis (MTB) remain critical challenges in global public health, particularly in resource-limited settings where tuberculosis (TB) drives significant morbidity and mortality. This study presents the development and characterization of a THz-based optical biosensor platform for ultra-sensitive MTB...

Because energy interest demands clean and sustainability in the last ten years. Solar thermal energy conversion, where sunlight can be absorbed to convert it into heat can stand as an alternative for this purpose. Graphene dispersed with different substrates enables us to get torsion control over light absorption and heat transport. This work discu...

This investigation presents the development and characterization of an advanced piezoelectric perovskite-based biosensing platform optimized for formalin detection in aqueous media through the implementation of Locally Weighted Linear Regression (LWLR) machine learning algorithms. The sensor architecture operates within the terahertz spectral regio...

The preliminary detection of colon cancer serves as critically important in optimizing patient outcomes and chances of survival. A surface plasmon resonance-based refractive index biosensor provides an incredible approach to the non-invasive, superior sensitive detection of colon cancerous tumors. In this proposed work, the design and analysis of t...

This study presents the development and characterization of a metasurface-based sensor for high-precision peptide detection. The architectural design that constitutes the sensor design incorporates a hybrid nano-photonic structure, featuring engineered square resonator with optimized geometric parameters. Rigorous electromagnetic analyses were perf...

This study introduces an advanced biosensing platform for label-free peptide detection, employing graphene metasurfaces optimized through machine learning algorithms. The proposed biosensor features a heterogeneous architecture comprising graphene, noble metals (Au, Ag), and BaTiO₃ resonators on a silicon dioxide (SiO₂) substrate. Comprehensive ele...

Sustainable energy solutions are required since conventional energy sources, such as fossil fuels, cause environmental degradation and resource depletion. In the present study, we have investigated the graphene-based metamaterial solar absorber (GBMSA) for designing a wide range of solar energy harvesting systems. In the 200–4000 nm range, the aver...

The research on solar absorbers plays a crucial role in the solar system’s performance. Different types of solar absorbers can be created based on the materials used in their layers. Additionally, incorporating graphene is essential for enhancing absorption efficiency. The current resonator design is formed by combining three square blocks and two...

Investigated a range of solar absorber configurations made from different materials in an effort to maximize energy output and reduce energy losses in the context of renewable energy sources, especially solar energy. In this study, two-dimensional MXene was used as a resonator based on the Tungsten (W) substrate in thin wire and circular disk integ...

A perfect solar absorber fabrication depends on many cases, from the selection of materials to the height of the layers. In many contributions of the absorbers, some additional thin layers of graphene and MXene, etc. are displayed to be performed as a wide-band structure, making the ideal type structure. From the analysis properties of the zirconiu...

The development of accurate and exceptionally sensitive biosensors for the prompt identification of critical health issues is of paramount importance for healthcare diagnostics. The design and analysis of the SPR-based trio-square nest-shaped refractive index biosensor (TSNSRIB) for the recognition of cholesterol, anemia, and HIV-infected cells hav...

Precise detection of alcohol compounds remains a critical imperative in environmental monitoring and clinical diagnostics. This investigation presents a biosensor architecture incorporating graphene-gold hybrid metasurfaces, leveraging the synergistic properties of these materials to achieve enhanced alcohol detection capabilities. The sensor desig...

Engineers are motivated to pursue green energy to mitigate the effects of climate change and generate sustainable electricity. Three materials are employed in an effective solar design: chromium (Cr) as a resonator, silicon dioxide (SiO2) as an intermediate layer, and silver (Ag) applied as a base part. This design harvests radiation in various lig...

This study presents the design and computational simulation of a graphene-based sensor optimized for bio-alcohol detection within the terahertz frequency range. The sensor architecture incorporates gold-based metasurfaces featuring T-shaped resonators, in conjunction with advanced materials including graphene, titanium dioxide, and black phosphorus...

The use of metamaterials and graphene improves the performance of many photonic structures. Here we have introduced one sensor which is having improved sensitivity for the detection of cancer which is utilizing graphene and metamaterials. We have used the COMSOL Multiphysics simulator for simulating sensor designs. The improvement in the design is...

Cyanide, a highly toxic chemical compound, presents severe risks to both human health and the environment. Its presence is particularly concerning in various industrial sectors, including mining, electroplating and chemical manufacturing, as well as in natural water bodies due to industrial discharge. This study introduces a graphene-based metasurf...

The contributed absorber design in graphene addition with the displacement of three materials for resonator design in Aluminum (Al), the middle substrate position with Titanium nitride (TiN), and the ground layer deposition by Iron (Fe) respectively. For the absorption validation highlight, the best four absorption wavelengths (µm) of 0.29, 0.58, 1...

The solar absorber design is an effective design to be used as a renewable energy design which gives the sustainable option. The effectiveness of the design is enhanced by using the optimization method. Machine learning is used to optimize the results. The machine learning optimization gives a higher efficient design which is required for absorbing...

Efficient traffic management solutions in 6G communication systems face challenges as the scale of the Internet of Things (IoT) grows. This paper aims to yield an all-inclusive framework ensuring reliable air pollution monitoring throughout smart cities, capitalizing on leading-edge techniques to encourage large coverage, high-accuracy data, and sc...

To promote the improvement of thermal energy observation in solar systems, the recent star-shaped design is performed with Chromium (Cr), Titanium carbide (TiC), tungsten (W), and an effective graphene for good output absorption. According to the output situation, the peak six wavelengths (µm) can be highlighted to show the extinct variation in par...

The emergent paradigm of nanoscale biosensing technologies represents a transformative modality in biomolecular detection, with substantive implications across critical interdisciplinary domains including clinical diagnostics, environmental monitoring, and alimentary safety assessment. This investigation presents a protein detection biosensor predi...

Brain tumors are indeed a critical health concern, and timely detection plays a pivotal role in improving patient outcomes. Properly executed brain cancer recognition methodologies can save valuable lives. These techniques require remarkable mobility, exactness, prompt reaction speed, and superior sensitivity. Brain tumor sensors possess the potent...

The foremost constituents of human blood are plasma, water, hemoglobin, red blood cells (RBCs), and white blood cells. The discovery of these constituents is a very imperative source to identify numerous sicknesses such as anemia, hemophilia, and myeloma. Due to its supporting real‐time explorations, great sensitivity, and simple fabrication with l...

The new generation of the surface plasmon resonance broadband type solar absorber for daily activities is produced in this work. To use the recent absorber efficiently, the perfect amount of absorption can be created with the unique design (combination of one cylinder and two squares) in proper materials of titanium (Ti), titanium nitride (TiN), an...

We designed an ultra-broadband graphene absorber structure with the applied resonator design based on the Al-AlSb-Cr structure, and a thin effective layer of graphene is inserted. To develop the role of the graphene in solar absorbers, the current structure investigates above 98% for 1500 nm bandwidth and 2800 nm (overall bandwidth) for 93.68%. In...

With the wide use of solar energy systems nowadays, we are profiting from natural resources and reducing electric bills. To create the perfect broadband absorber, combining the selected material in each layer and the appropriate resonator design plays an important role. With the efficiency of solar energy, our living standards can develop with the...

This investigation presents the development and characterization of a high-performance terahertz biosensing platform optimized for ultrasensitive detection of waterborne pathogens across multiple spectral bands. The novel biosensor architecture integrates U-shaped and split circular strip resonators with advanced plasmonic materials, facilitating e...

The development of efficient energy absorbers is essential for optimizing solar energy utilization, particularly for applications such as thermophotovoltaics and other solar energy harvesting technologies. Current research typically focuses on improving the efficiency of the solar absorbers with low-cost materials. This study addresses this limitat...

Solar energy harvesting has been recognized historically, and solar power is an exceptional source of clean power. Researchers have investigated numerous surface plasmon resonance architectures using different materials to reduce additional losses. In this paper, the three-layer polarization-insensitive MXene-based square-shaped slotted resonator s...

The generating absorber design for the thermal heating system is contributed with the three-layer composition of a resonator layer using iron, the substrate part by Ferric oxide, and the design’s bottom layer in Titanium respectively. The exposed absorption rates depend on the overall range of wavelength and can be identified with the best waveleng...

Investigating the new solar absorber under the study of photonics devices stands an important role in many energy harvesting processes. To suppose the thermal energy system with many applications in actual works, the recent absorber is created by combining the material properties (Zr-GaAs-Cr) and additional graphene effect can pick up the high abso...

Dengue infection is a viral illness that influences hundreds of thousands of individuals everywhere. Dengue diagnostics are typically not conducted due to their upmost prices, difficult procedures, and lengthy turnaround times. Particular assessments require rapid, trustworthy, and straightforward methodologies for general usage. The rapid diagnosi...

This study presents a highly sensitive sensor designed for the detection of low refractive index substances in the THz range. The sensor leverages a hybrid metasurface combined of graphene and silver nanostructures, taking advantage of the extraordinary optical properties of graphene and the plasmonic resonances of silver. By carefully engineering...

This study presents an advanced sensor system integrating gold metasurfaces with graphene for the detection of reproductive hormones via refractive index variations. The proposed design operates under terahertz (THz) excitation to exploit the unique molecular signatures of hormones and minimize potential interferences. Comprehensive numerical analy...

The biosensors concentrated upon surface plasmon resonance (SPR) have been implemented across a diverse range of sectors including pharmaceuticals, food, medications, and drink safety for monitoring biological and chemical characteristics. These kinds of sensors operate by determining variations that affect the refraction index of the surrounding m...

Urea is one of the central organic combinations in urine of human bodies. Excessive excretion of urea causes a decrease in blood flow to the kidney and heart. As a result, it is very crucial to sense the urea level in blood for the effective diagnosis of kidney and heart illnesses. Lately, surface plasmon resonance–based biosensor (SPRBB) is applie...

This research introduces the architecture of an infrared solar energy absorber coupled with absorption prognosis employing machine learning techniques. Our approach involves creating an efficient absorber tailored for infrared wavelengths complemented by a machine learning model for accurately predicting absorption levels. The absorber's design foc...

The development of highly sensitive sensors for detecting alcohol compounds is crucial across diverse sectors, including healthcare, automotive safety, and law enforcement. This study presents a novel graphene-based sensor integrated with gold nanostructures for the efficient detection of alcohol compounds in the terahertz frequency range. Three di...

Protein detection is essential across diverse biomedical and biochemical disciplines, including disease diagnostics, pharmaceutical research, and environmental monitoring. Precise and efficient detection methodologies are critical for explaining complex biological processes and identifying biomarkers associated with various health conditions. This...

This work presents the design and characterization of a highly sensitive biosensor based on a metasurface architecture that integrates graphene and gold nanostructures. The sensor incorporates a combination of circular, circular ring, and rectangular resonator elements. Through comprehensive numerical simulations and optimization techniques, the ge...

Solar radiation is captured by the solar absorber, and these absorbers are used in various applications. MXene-based square cylinder-shaped solar absorber (MSCSSA) is a unique geometry resonator structure that absorbs the high solar radiation in this study. MXene’s extraordinary optical properties permit it to absorb significant amounts of the sun’...

Malaria and other diseases transmitted by insects pose a significant threat to the well-being of people, particularly in heavily inhabited tropical countries with limited development. Malaria is a leading source of death and financial devastation, with the potential to expand within unfamiliar areas via transportation. Although with accessible trea...

Fossil fuels’ supply peaks, decreases, and shortages are determined by their proven reserves, research, and consumption rates. With a large upfront cost, renewable and alternative energy sources are essential to solving the twin issues of energy and climate change. Solar absorbers are an excellent way to use renewable energy from the environment. T...

Optical refractive index biosensors are susceptible devices for the assessment of various blood components like blood plasma, WBCs, hemoglobin, RBCs, and diabetes mellitus. These biosensors play a crucial role in various fields, including environmental monitoring, pharmaceuticals, biomedical research, and health care. These devices are designed to...

Breast cancer is the leading malignancy in women and the 2nd widespread cancer globally. Earlier identification of breast cancer can improve treatment outcomes and prevent metastasis beyond the breast. Traditional screening tests are not sensitive enough for early diagnosis and have extended detection periods. Recent studies have explored diversifi...

This study presents a terahertz (THz) resonance gas sensor design incorporating graphene, black phosphorus, and MXene materials in a metasurface structure. The sensor leverages the unique properties of these advanced two-dimensional materials to achieve enhanced sensitivity and versatility in gas detection applications. The proposed design consists...

This paper presents a terahertz metasurface based sensor design incorporating graphene and other plasmonic materials for highly sensitive detection of different chemicals. The proposed sensor employs the combination of multiple resonator designs - including circular and square ring resonators - to attain enhanced sensitivity among other performance...

The need for heating in household and industry is increasing, and this demand can be met with renewable energy using solar thermal absorbers. In the developing design construction, the three appropriate layers have been composed to perform a good solar absorber with different types of materials such as zirconium (Zr) as the resonator design, iron (...

This article represents a single-layered two-port MIMO antenna loaded into a compact plane-patterned metamaterial (MTM) structure for a 5G communication system. The antenna operates at three bands to investigate metamaterial properties in addition to diversity parameters, an arrangement of a series of arrays suggested a 2-port design antenna and a...

This paper introduces a biosensor based on graphene metasurfaces, designed for virus detection in the terahertz (THz) regime. The proposed sensor comprises four resonators arranged in a semicircular configuration, strategically engineered to achieve enhanced sensitivity and overall performance. Computational simulations using COMSOL Multiphysics ve...

Aqueous solutions are fundamental to a wide range of chemical and biological processes, serving as a critical medium for both natural phenomena and technological advancements. This study presents the design and modelling of a metasurface-based biosensor for aqueous solution detection. The sensor architecture comprises multiple resonators deposited...

his study presents an advanced biosensor based on metasurfaces for hemoglobin detection. The proposed sensor design integrates graphene with gold and silver, leveraging their exceptional optical properties and ability to support surface plasmon resonances. The metasurface-based architecture enhances interactions between the sensor and hemoglobin bi...

This study presents the design, optimization, and evaluation of a highly sensitive terahertz refractive index sensor utilizing graphene metasurfaces for glucose detection in urine samples. The proposed sensor incorporates circular, square, and triangular resonator structures composed of graphene, gold, and silver to enhance plasmonic properties and...

Developing sensitive and specific methods for detecting malaria is a substantial challenge in biomedical research. Here, we introduce a novel approach utilizing a metasurface sensor based on graphene for the detection of malaria. Modelled on a silicon dioxide (SiO2) substrate, this sensor allows seamless integration with current electronic and opti...