HESAM, KAMYAB

Preferred name

HESAM, KAMYAB

Main Affiliation

Facultad de Arquitectura y Urbanismo

Now showing 1 - 10 of 71

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Biomedical MXene-polymer nanocomposites: advancing photothermal therapy, antibacterial action, and smart drug delivery: a review
(Elsevier BV, 2025-06)
Ali Mohammad Amani
;
Lobat Tayebi
;
Ehsan Vafa
;
Mohammad Javad Azizli
;
Milad Abbasi
MXenes are hydrophilic, conductive, tunable, and biocompatible two-dimensional ceramic materials prepared by etching the 'A' layer from their precursor MAX phases. Although MXenes show exceptional promise in photothermal therapy, biosensing, and regenerative medicine, they face challenges such as oxidative instability in physiological environments, limited drug-loading capacity, and unpredictable immune responses. To address these limitations, MXene/polymer nanocomposites incorporating both synthetic polymers (e.g., polyethylene glycol (PEG), polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), and polylactic-co-glycolic acid (PLGA)) and natural biopolymers (e.g., cellulose nanofiber, gelatin, chitosan, hyaluronic acid, and soybean phospholipids) have been developed. These composites enhance functionality for biomedical applications such as photothermal cancer therapy, biosensors, antibacterial agents, bone regeneration, and targeted drug delivery. The hydrophilic nature of MXenes makes them suitable for transformation into metallic-conductive electrodes, while their compatibility with metals, ceramics, and polymers improves performance in advanced applications. This review paper discusses the properties, synthesis methods, and biomedical applications of MXene/polymer nanocomposites, emphasizing the roles of both synthetic and natural biopolymers. Key achievements include near-infrared (NIR) absorption for efficient drug delivery, anticancer activity, bioimaging, and antimicrobial effects. In addition, the limitations of these nanocomposites and potential solutions are examined.
Scopus© Citations 43
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Dual‐Function Piezo‐Photocatalytic Systems for Sustainable Hydrogen Evolution and Environmental Remediation
(Wiley, 2025-10-27)
Nguyễn Hoàng Ly
;
Sang Jun Son
;
HESAM, KAMYAB
;
Yasser Vasseghian
;
Sang‐Woo Joo
Hydrogen (H) production and environmental cleanup, including pollutant breakdown, nano‐plastic removal, and CO reduction, are crucial for achieving environmental sustainability. Piezo‐photocatalysis has appeared in an optimistic approach to address environmental pollution and the escalating energy crisis. Although several reviews on H production and environmental cleanup using piezo‐catalytic technologies have been recently published, there is no review specifically focused on the literature related to dual‐functional piezo‐photocatalytic systems. This research aims to fill that gap as the field continues to grow rapidly. This study reviews dual‐function piezo‐photocatalytic systems, which can be easily fabricated to enhance the effective uncoupling and transfer of photoproduced holes and electrons for H production and environmental cleanup. First, piezoelectric materials, such as metal oxides (e.g., TiO, ZnO, BaTiO), 2D materials (e.g., MoS, MXenes, graphene‐based materials), perovskite materials, and composite/heterostructure materials, are introduced. Second, this work also explores various modification methods that enhance piezo‐photocatalytic efficiency, highlighting the remarkable properties of dual‐function systems designed for sustainable H production and environmental cleanup. Additionally, this work provides insight into the underlying mechanisms of piezo‐photocatalytic activity and suggests new pathways toward high‐performance piezo‐photocatalysts. Finally, this research discusses future directions for piezoelectric materials in environmental applications and sustainable H production.
Scopus© Citations 25
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Enhancing RhB photocatalytic degradation with ZnO/Sb2MoO6 Z-scheme photocatalyst: Evaluation of performance and mechanism
(Elsevier BV, 2026-04)
HESAM, KAMYAB
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Tayebeh Khademi
;
Shreeshivadasan Chelliapan
;
Mohammad Yusuf
;
Saravanan Rajendran
Integrating semiconductors to improve light absorption and promote efficient charge-carrier separation is widely regarded as a promising strategy for enhancing photocatalytic performance. Nevertheless, designing heterostructures that simultaneously possess optimal optical characteristics and favorable interfacial energy alignments remains a significant challenge. In this study, a Z-scheme ZnO/Sb₂MoO₆ photocatalyst was successfully fabricated via an efficient hydrothermal synthesis method and employed for photocatalytic RhB degradation for the first time. The XRD results confirmed the successful synthesis of pure bare ZnO, Sb2MoO6, and the ZnO/Sb2MoO6 composite, as evidenced by the characteristic peaks corresponding to these semiconductor materials. UV–Vis spectroscopy revealed that the nanocomposite exhibits a broader absorption range, suggesting its potential application as a visible-light-driven photocatalyst. Additionally, the composite demonstrated a smaller radius in the EIS Nyquist plot, a stronger photocurrent response, and a weaker PL emission intensity, all of which indicate reduced charge transfer resistance and more efficient separation of charge carriers. The ZnO/Sb2MoO6 composite demonstrated significantly enhanced and reliable photocatalytic degradation performance compared to individual ZnO and Sb2MoO6. Under optimal conditions (photocatalyst dosage: 1 g L-1, dye concentration: 5 mg L-1, and pH = 9), the composite achieved a degradation rate constant of 589.3 × 10–4 min-1 for RhB. The Z-scheme heterostructure enhances light absorption, effectively suppresses charge-carrier recombination, and enables the spatial separation of oxidation and reduction sites. Additionally, it preserves an optimal alignment of the valence and conduction bands, thereby sustaining the photocatalyst's robust redox activity. This study introduces an easy approach to developing photocatalysts by creating direct Z-scheme electron transfer pathways, enabling highly effective water purification.
Scopus© Citations 26
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A comprehensive review on MXene nanostructures for biosensing, imaging, and therapeutic systems
(Elsevier BV, 2026-02)
Ali Mohammad Amani
;
Ehsan Vafa
;
Maryam Mirzae
;
Milad Abbasi
;
Ahmad Vaez
Because of their exceptional electrical, mechanical, dimensional, chemical, and magnetic characteristics, MXenes have attracted an abundance of interest in scholarly study lately. According to recent developments and discoveries, MXene, a multilayered compound with a two-dimensional (2D) framework, has a lot greater promise for use in bioengineering and medical research than other nanosystems. These uses encompass medical procedures, administering medications, biosensor technologies, incorporation, antimicrobial agents, and biological imaging. MXenes are very attractive prospects for therapeutic, diagnostic, and theranostic use because of their distinctive features, which include their substantial conductivity to electricity, magnetic luminescence, wide extent of coverage, excellent biocompatibility, and low toxicological profile. Modifications to the MXene surfaces are biocompatible and serve a variety of purposes, such as directing ligands to certain locations for preferred aggregation, which makes them suitable for use in particular applications. A description of the properties, changes, and synthesis techniques of MXene nanostructures is presented in this work. The practical applications of MXene-derived nanostructures in biomedical fields are also thoroughly evaluated in this study, with an emphasis on implants, biosensing, biological imaging, antibacterial activities, and versatile therapeutic systems. The potential opportunities and difficulties related to the use of MXenes throughout the field of biological medicine are also covered in this paper.
Scopus© Citations 17
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S-scheme heterojunction engineering of ZnO/ZnIn2S4 for efficient solar-driven oxygen evolution in photoelectrochemical water splitting
(Elsevier BV, 2026-10)
HESAM, KAMYAB
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Khademi, Tayebeh
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Rezania, Shahabaldin
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Rajendran, Saravanan
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Shanmugapriya, D.
Scopus© Citations 3
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The hybrid attic ventilation technique as a sustainable strategy for thermal comfort improvement and energy saving in tropical residential buildings
(Elsevier BV, 2025-04-01)
Mahdi Moharrami
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Aidin Nobahar Sadeghifam
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Hamed Golzad
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Eeydzah binti Aminudin
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Seyedeh Sara Miryousefi Ata
Thermal comfort in hot-humid tropical climates, such as Malaysia's, is significantly affected by solar radiation, humidity, and air temperature. Solar radiation heats the roof, warming the enclosed attic space and distributing heat throughout the building's interior. In tropical regions, the attic is integral to the building, and inadequate ventilation can elevate the overall thermal load. This study investigates the impact of a hybrid attic ventilation technique designed to operate continuously over 24 h on enhancing thermal comfort and increasing energy savings. Field measurements were conducted simultaneously in two typical one-storey terrace houses: one with conventional attic conditions and the other equipped with hybrid attic ventilation. Building Information Modelling (BIM) was used to simulate and analyse energy consumption. The results demonstrated that the hybrid ventilation system improved thermal comfort by reducing indoor temperature by 1 °C and relative humidity by 7%, achieving a 10% reduction in overall building energy consumption. The results showed that this hybrid technique effectively enhances thermal comfort and energy efficiency through continuous operation, showing the benefits of both nighttime and daytime ventilation.
Scopus© Citations 8
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Nanomaterials and hydrogen production: A comprehensive Review of clean energy strategies, costs, and environmental implications
(Elsevier BV, 2025-09)
Fazil Qureshi
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Mohammad Asif
;
Mohd Yusuf Khan
;
Abuzar Khan
;
Mohd Naved Khan
An increasing demand for energy coupled with rising pollution levels is driving the search for environmentally clean alternative energy resources to replace fossil fuels. Hydrogen has emerged as a promising clean energy carrier and raw material for various applications. However, its environmental benefits depend on sustainable production methods. The rapid development of nanomaterials (NMs) has opened new avenues for the conversion and utilization of renewable energy (RE). NMs are becoming increasingly important in addressing challenges related to hydrogen (H₂) generation. This review provides an overview of current advancements in H₂ production from biomass via thermochemical (TC) and biological (BL) processes, including associated costs, and explores the applications of nanomaterials in these methods. Research indicates that biological hydrogen (BL-H₂) production remains costly. The challenges associated with the TC conversion process are examined, along with potential strategies for improvement. Finally, the technical and economic obstacles that must be overcome before hydrogen can be widely adopted as a fuel are discussed.
Scopus© Citations 14
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Adsorptive Removal of Simazine Using UiO-66@Al2O3/Activated Carbon Nanocomposites
(Springer Science and Business Media LLC, 2026-06-13)
HESAM, KAMYAB
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Khademi, Tayebeh
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Chelliapan, Shreeshivadasan
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Yuzir, Ali
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Shanmugapriya, D.
Scopus© Citations 2
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Photocatalytic CO2 conversions on copper nanoparticles investigated by Raman spectral changes using convolutional neural networks
(Elsevier BV, 2025-10)
Heung Seok Lee
;
Jaerin Choi
;
Jin Yong Lee
;
Ji Eun An
;
Thi Huong Vu
A convolutional neural network (CNN) deep learning process is employed to analyze in situ Raman scattering data for CO2 capture and its photocatalytic conversions onto copper sulfide hollow nanospheres (CuSHNSs) and copper nanocubes (CuNCs) in microalgae solution of Spirulina maxima. Raman spectra under visible light at 633 nm in a microfluidic solution provided representative vibrational marker bands of Cdouble bondO features at ∼2100 cm−1 and CH2/CH3 bending vibrations at ∼1400 cm−1 that are correlated with CO2 reduction products of carbon monoxide (C1) and multi‑carbon species such as propanol (C3), butanol (C4), respectively. Accumulated Raman spectra were trained and analyzed to estimate photocatalytic pathways using CNN algorithm. The presence of Spirulina maxima microalgae on the alteration of photocatalytic processes is studied by analyzing collective Raman spectral changes. The main observation is that strong CO peaks in Raman spectra of CO2 adsorbed by CuNCs almost disappeared after treatment with microalgae, whereas their intensities were slightly increased in case of CuSHNS. The CNN deep learning process for Raman spectra was effective to differentiate photocatalytic mechanisms of CO2 conversion onto nanoparticle surfaces.
Scopus© Citations 4
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A comprehensive review on arsenic contamination in groundwater: Sources, detection, mitigation strategies and cost analysis
(Elsevier BV, 2025-01-15)
Mohd Wajahat Sultan
;
Fazil Qureshi
;
Salman Ahmed
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HESAM, KAMYAB
;
Saravanan Rajendran
While groundwater is commonly perceived as safe, the excessive presence of trace metals, particularly arsenic (As), can pose significant health hazards. This review examines the current scenario of pollutants and their mitigations focusing on As contamination in groundwater across multiple nations, with a specific emphasis on the Indian Peninsula. Arsenic pollution surpasses the WHO limit of 10 ppb in 107 countries, impacting around 230 million people worldwide, with a substantial portion in Asia, including 20 states and four union territories in India. Analysis of the correlation between the aquifer and arsenic poisoning highlights severe contamination in groundwater originating from loose sedimentary aquifer strata, particularly in recently formed mountain ranges with geological sources presumed to contribute over 90% of arsenic pollution, i.e. a big environmental challenge. A myriad of techniques, including chromatographic, electrochemical, biological, spectroscopic, and colorimetric methods among others, are available for the detection and removal of arsenic from groundwater. Removal strategies encompass a wide array of approaches such as bioremediation, adsorption, coagulation/flocculation, ion exchange, biological processes, membrane treatment, and oxidation techniques specifically tailored for affected areas. Constructed wetlands help to eliminate heavy metal impurities such as As, Zn, Cd, Cu, Ni, Fe, and Cr. Their efficiency is influenced by design and environmental factors. Nanotechnology and nanoparticles have recently been studied to remove arsenic and toxic metal ions from water. Cost-effective solutions including community-based mitigation initiatives, alongside policy and regulatory frameworks addressing arsenic contamination, are essential considerations.
Scopus© Citations 87

HESAM, KAMYAB

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