Hani Nasser Abdelhamid

Assiut University · Department of Chemistry

Due to the importance of quantum dots (QDs), fervent research continues for new preparations, surface modification and investigation of further applications. The facile preparation of CdS QDs embedded in chitosan nanoparticles (CTS) was synthesized, characterized and has been applied for various applications such as hydrogen peroxide (H2O2) and sel...

Graphene oxide (GO)-modified sinapinic acid (3,5-dimethoxy-4-hydroxycinnamic acid, SA) (SA@GO) was synthesized and characterized; it was then investigated as a new surface assisted laser desorption/ionization mass spectrometry (SALDI-MS) for proteomics and pathogenic bacteria biosensing. SA@GO could effectively decrease the time necessary for sweet...

Hydrogen gas (H2) is widely acknowledged as a sustainable and environmentally friendly energy carrier. In this study, we examined the potential of copper-based metal-organic frameworks (MOFs); copper-benzene-1,3,5-tricarboxylate (Cu-BTC), as catalysts for the release of hydrogen through the hydrolysis of sodium borohydride (NaBH4). Cu-BTC exhibited...

Hydrogen gas (H2) is widely acknowledged as a sustainable and environmentally friendly energy carrier. In this study, we examined the potential of copper-based metal-organic frameworks (MOFs); copper-benzene-1,3,5-tricarboxylate (Cu-BTC), as catalysts for the release of hydrogen through the hydrolysis of sodium borohydride (NaBH4). Cu(BTC) exhibite...

This review summarizes the applications of some of the advanced materials. It included the synthesis of several nanoparticles such as metal oxide nanoparticles (e.g., Fe3O4, ZnO, ZrOSO4, MoO3-x, CuO, AgFeO2, Co3O4, CeO2, SiO2, and CuFeO2); metal hydroxide nanosheets (e.g., Zn5(OH)8(NO3)2·2H2O, Zn(OH)(NO3)·H2O, and Zn5(OH)8(NO3)2); metallic nanopart...

This review summarizes applications of some of the advanced materials. It included the synthesis of several nanoparticles such as metal oxide nanoparticles (e.g., Fe3O4, ZnO, ZrOSO4, MoO3-x, CuO, AgFeO2, Co3O4, CeO2, SiO2, and CuFeO2); metal hydroxide nanosheets (e.g., Zn5(OH)8(NO3)2·2H2O, Zn(OH)(NO3)·H2O, and Zn5(OH)8(NO3)2); metallic nanoparticle...

Pyrogallol is widely used in several industrial applications and can subsequently contaminate aquatic ecosystems. Here, we report for the first time the presence of pyrogallol in wastewater in Egypt. Currently, there is a complete lack of toxicity and carcinogenicity data for pyrogallol exposure in fish. To address this gap, both acute and sub-acut...

ISF Certificate

Hydrogen storage and release using a solid-state material e.g., sodium borohydride (NaBH4) may fulfill the requirements for the ‘Hydrogen Economy’. This study reported ZnO-based materials for hydrogen release via the hydrolysis of NaBH4. Two different metal oxides e.g. CeO2 and TiO2 with different weight loading (5 wt.% and 10 wt.%) were used durin...

Various biomaterials have been evaluated to enhance bone formation in critical-sized bone defects; however, the ideal scaffold is still missing. The objective of this study was to investigate the in vitro and in vivo regenerative capacity of graphitic carbon nitride (g-C3N4) and graphene oxide (GO) nanomaterials to stimulate critical-sized bone def...

Metal-organic frameworks (MOFs) improved several trends and are promising for industrial applications. However, current synthesis processes offer powder form, rendering their applications difficult. A simple solvothermal method offered an in-situ growth of copper-based MOFs e.g., CuBDC (BDC; benzene-1,4-dicarboxylic acid) into a cotton textile; the...

This review summarizes mainly the activity of our labs. We established more than one laboratory for materials synthesis, characterization, and applications. Our laboratories provide the synthesis of several nanoparticles including metal oxide nanoparticles (e.g., Fe3O4, ZnO, ZrOSO4, MoO3-x, CuO, AgFeO2, Co3O4, SiO2, and CuFeO2), metallic nanopartic...

This review summarizes mainly the activity of our labs. We established more than one laboratory for materials synthesis, characterization, and applications. Our laboratories provide the synthesis of several nanoparticles including metal oxide nanoparticles (e.g., Fe3O4, ZnO, ZrOSO4, MoO3-x, CuO, AgFeO2, Co3O4, SiO2, and CuFeO2), metallic nanopartic...

This review summarizes mainly the activity of our labs. We established more than one laboratory for materials synthesis, characterization, and applications. Our laboratories provide the synthesis of several nanoparticles including metal oxide nanoparticles (e.g., Fe3O4, ZnO, ZrOSO4, MoO3-x, CuO, AgFeO2, Co3O4, SiO2, and CuFeO2), metallic nanopartic...

Materials science production and processing advancements have advanced electrochemical energy storage devices, including batteries and supercapacitors. There is significant progress in developing advanced materials for these applications; however, less attention has been received for electrode and device manufacturing. Traditionally, electrodes are...

Metal-organic frameworks (MOFs) have advanced several technologies. However, it is difficult to market MOFs without processing them into a commercialized structure, causing an unnecessary delay in the material's use. Herein, three-dimensional (3D) printing of cellulose/leaf-like zeolitic imidazolate frameworks (ZIF-L), denoted as CelloZIF-L, is rep...

One-pot co-precipitation of target molecules e.g. organic dyes and the synthesis of a crystal containing microporous–mesoporous regimes of zeolitic imidazolate frameworks-8 (ZIF-8) are reported. The synthesis method can be used for cationic (rhodamine B (RhB), methylene blue (MB)), and anionic (methyl blue (MeB)) dyes. The crystal growth of the ZIF...

Biodegradable polymers exhibit shortcomings, including low thermal stability and electrical conductivity. These challenges limit the broad applications of several applications, such as electronic devices. They show suitable dielectric, thermal, and electrical conductivity compared to the biodegradable polymer alone. Several methods can improve biod...

Post‐harvest fungal infection is the common cause of fresh fruit losses. Thus, effective antifungal agents are highly required. Herein, copper‐based metal‐organic frameworks (MOFs) were used as a precursor for the synthesis of copper oxide (CuO) embedded into carbon (CuO@C). The materials' crystallinity was confirmed using X‐ray diffraction. X‐ray...

Metal-organic frameworks (MOFs) with two-dimensional (2D) morphology are an emerging class of layered MOFs. 2D MOFs-based materials exhibited well-defined structure, accessible pore size, high surface areas, high flexibility, and ease of modification. They were applied for several biomedical-based applications, such as biosensing. This chapter summ...

A metal-organic framework (MOF) of cerium (Ce) ions and 4,4′,4′′-nitrilotribenzoic acid linker was synthesized via a hydro-thermal method. Ce-MOF consists of a Lewis acid moiety, i.e. Ce 3+ and triphenylamine cores. It showed Fenton-like properties with excellent catalytic oxidation activity for olefins, primary/secondary alcohols, and water pollut...

The use of light radiation to cause the dissociation of water into hydrogen (H 2) gas has tremendous promise as a green method of hydrogen production. Herein, we reported a comparative study for the photocatalytic activity of TiO 2 nanocomposite with two co-catalysts e.g., Pt or Cu nanocrystals (3-4 nm) using different synthesis procedures ; incipi...

Heterocyclic moieties, such as benzimidazole, are examples of important nuclei that have found widespread use in a variety of scientific subfields, such as medical and applied chemistry. In this study, we described the photocatalytic synthesis of numerous different benzimidazole derivatives using a solid-state acid composed of zirconium oxosulfate...

A wet‐incipient impregnation method was reported to synthesize hierarchical porous bimetallic (Co, Zn)‐zeolitic imidazolate frameworks/TiO2 (Co@ZIF‐8/TiO2) for green hydrogen generation via photocatalytic water splitting. Co@ZIF‐8/TiO2 showed higher photocatalytic efficiency than TiO2, with a hydrogen generation rate (HGR) of 13 mmol•h−1•g−1 with a...

Many research efforts focused on designing an effective vector to form stable complexes with a gene-based therapeutic agent for gene delivery. Several vectors can be classified into two major classes, including viral and non-viral advanced gene delivery. Both categories exhibit their advantages and disadvantages. Because of the safe, secure, and hi...

Materials science production and processing advancements have advanced electrochemical energy storage devices, including batteries and supercapacitors. There is significant progress in developing advanced materials for these applications; however, less attention has been received for electrode and device manufacturing. Traditionally, electrodes are...

The biomedical implants using polysaccharides are promising compared to other materials. Polysaccharides are abundant and present in nature with minimum requirements for extraction and processing. They show good biological properties such as high biocompatibility and require a simple processing procedure to be manufactured into scaffolds and other...

Pyrolysis of cobalt (Co)-based metal-organic frameworks (MOF) was used to synthesize Co3O4@N-doped C composites. The hierarchical porous structure of zeolitic imidazolate frameworks (ZIF-67) was synthesized using a triethylamine-assisted method in water and room temperature. ZIF-67 was used as a precursor for the synthesis of Co3O4@N-doped C. The m...

Metal-organic frameworks (MOFs) based photocatalysis has received great attention recently as a promising technology for sustainable environmental applications. Herein, hydrogen peroxide (H2O2) activation with a copper-based metal-organic framework-derived catalyst (CuO@C) was applied for the photodegradation of a widely used analgesic paracetamol...

Metal-organic frameworks (MOFs) are promising catalysts for producing clean energy and environmental-based applications. This paper reported one-pot encapsulation of guest molecules, e.g., thiourea (TU) and D-Glucose-6-phosphate disodium salt dihydrate (G6P-Na2), into zeolitic imidazolate frameworks (ZIF-67). The organic guest molecules offered the...

Energy storage materials have advanced renewable energy technologies. Herein, we described the one-pot preparation of covalent organic frameworks (COFs)/graphitic carbon nitride (g-C3N4) nanocomposite. The condensation of melamine and benzene-1,3,5-tricarboxyaldehyde with and without offered the synthesis of COF and COF/g-C3N4. N-doped carbon and N...

CDs are promising fluorescence probes for detecting heavy metal ions, including biological, toxic, and precious species. They can be easily synthesized via different procedures using cheap and abundant available sources. The synthesis procedure can tune the optical photoluminescence by selecting the suitable method, carbon source, or temperature. T...

The electrochemical properties of CDs offered several advantages for being electrode-based materials. CDs are cheap compared to carbon nanomaterials such as MWCNTs and graphene. However, the current methods for the synthesis lack high reproducibility and sometimes require high costs chemical reagents. The synthesis procedures of CDs with monodisper...

Biodegradable polymers exhibit shortcomings, including low thermal stability and electrical conductivity. These challenges limit the broad applications of several applications, such as electronic devices. They show suitable dielectric, thermal, and electrical conductivity compared to the biodegradable polymer alone. Several methods can improve biod...

Recent advancements in separation and membrane technologies have shown a great potential in removing oil from wastewaters effectively. In addition, the capabilities have improved to fabricate membranes with tunable properties in terms of their wettability, permeability, antifouling, and mechanical properties that govern the treatment of oily wastew...

Metal–organic frameworks (MOFs) are promising materials for several applications. Thus, they have been intensively reported and commercialized by several international companies. However, little is known about the fate and risk of MOFs to living organisms. Here, the toxic effect of two Zinc (Zn)-based MOFs; zeolitic imidazolate frameworks (ZIF-8) a...

Cell-Penetrating Peptides

Despite all the progress made to enrich the existing bank of drugs used to treat and cure Alzheimer and cancer patients, there is still a need to research and develop new bioactive candidates with superior efficacy but minimal side effects. In this context, a new series of anti-butyrylcholinesterase (anti-BChE), anti-tyrosinase and cytotoxic succin...

This study reports the ex-situ and in-situ (one-pot) synthesis of a triazine covalent organic framework (COF)/ graphene oxide (GO) nanocomposite. The materials are also used to synthesize N-doped carbon (N-doped C)/reduced GO (rGO) via a simple carbonization step. The nanocomposites are used as electrodes for supercapacitors. N-doped C/rGO synthesi...

Covalent organic frameworks (COFs)-based materials, including nanocomposite, are promising materials for the fabrication of electrodes for supercapacitors (SCs). They exhibit high capacitance with advantageous properties such as long-term usage. The electrochemical performance of COFs can be enhanced via the optimization and tuning of the pore size...

Biodegradable polymers exhibit shortcomings, including low thermal stability and electrical conductivity. These challenges limit the broad applications of several applications, such as electronic devices. They show suitable dielectric, thermal, and electrical conductivity compared to the biodegradable polymer alone. Several methods can improve biod...

Background Repair of large-sized bone defects is a challengeable obstacle in orthopedics and evoked the demand for the development of biomaterials that could induce bone repair in such defects. Recently, UiO-66 has emerged as an attractive metal–organic framework (MOF) nanostructure that is incorporated in biomedical applications due to its biocomp...

Carbon dioxide (CO2) is one of the culprit causes of global climatic changes. Furthermore, the efficient separation of CO2 from other gaseous mixtures using ZIFs‐based materials is vital for several processes such as flue gas separation, gas sweetening, and natural gas processing. Zeolitic imidazolate frameworks (ZIFs)‐based materials are emerging...

Cadmium sulfide (CdS) quantum dots (QDs) were homogeneously embedded into chitosan (CTS), denoted as CdS@ CTS, via an in situ hydrothermal method. The intact structure of the synthesized materials was preserved using freeze-drying. The materials were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy, transmission electro...

Cadmium sulfide (CdS) quantum dots (QDs) were homogeneously embedded into chitosan (CTS), denoted as CdS/CTS, via an in-situ solvothermal method. The intact structure of the synthesized materials was preserved via separating the materials using freeze-drying. The materials were characterized using X-ray diffraction (XRD), X-ray photoelectron spectr...

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There are various biomaterials, but none fulfills all requirements. Cellulose biopolymers have advanced biomedicine to satisfy high market demand and circumvent many ecological concerns. This review aims to present an overview of cellulose knowledge and technical biomedical applications such as antibacterial agents, antifouling, wound healing, drug...

Best Research Award 2020_Assiut University

Carbon dioxide (CO2) is one of the culprit causes of global climatic changes. Furthermore, the efficient separation of CO2 from other gaseous mixtures using ZIFs-based materials is vital for several processes such as flue gas separation, gas sweetening, and natural gas processing. Zeolitic imidazolate frameworks (ZIFs)-based materials are emerging...

Nanoparticles, such as noble metal nanoparticles and covalent organic frameworks (COFs), advance heterogeneous catalysis. Three COFs were synthesized via the solvothermal method using tricarboxylic acids (tricarboxylic benzene (2,4,6-tri-p-carboxyphenylpyridine (H3L2), 4,4',4''-tri carboxyl triphenylamine (H3L1), and trimesic acid (H3BTC)) and 1,3,...

Nanoparticles, such as noble metal nanoparticles and covalent organic frameworks (COFs), advance heterogeneous catalysis. Three COFs were synthesized via the solvothermal method using tricarboxylic acids (tricarboxylic benzene (2,4,6-tri-p-carboxyphenylpyridine (H3L2), 4,4′,4''-tri carboxyl triphenylamine (H3L1), and trimesic acid (H3BTC)) and 1,3,...

Quantum dots (QDs) have been advanced biomedical applications, including drug delivery. They can be inorganic (e.g., ZnO, CdS, CdTe, Si QDs, CuInS2) and organic-based (e.g., carbon QDs, graphene quantum dots) materials. They exhibited advantages such as high surface area, high photostability, and can be modified merely using different approaches su...

The processing of hierarchical porous zeolitic imidazolate frameworks (ZIF-8) into a cellulose paper using sheet former Rapid-Köthen (R.K.) is reported. The procedure is a promising route to overcome a significant bottleneck in applying metal-organic frameworks (MOFs) in commercial products. ZIF-8 crystals were integrated into cellulose pulp (CP) o...

The processing of hierarchical porous zeolitic imidazolate frameworks (ZIF-8) into a cellulose paper using sheet former Rapid-Köthen (R.K.) is reported. The procedure is a promising route to overcome a significant bottleneck towards applying metal-organic frameworks (MOFs) in commercial products. ZIF-8 crystals were integrated into cellulose pulp (...

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This study reports the one-pot synthesis of a triazine covalent organic framework (COF)-based nanocomposite via the condensation of melamine and terephthaldehyde in the presence of graphene oxide (GO). The materials are also used to synthesize N-doped carbon (N-doped C) via a single carbonization step. The nanocomposites are used as electrodes for...

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Removing organic contaminants such as dyes from water is essential to purify wastewater. Herein, zeolitic imidazolate framework-8 (ZIF-8) and ZnO@N-doped C are reported as effective adsorbents and photocatalysts for the adsorption and degradation of organic dyes. The materials showed effective and selective adsorption toward anionic dyes such as me...

Removing organic contaminants such as dyes from water is essential to purify wastewater. Herein, zeolitic imidazolate frameworks-8 (ZIF-8) and ZnO@N-doped C are effective adsorbent and photocatalysts for the adsorption and degradation of organic dyes. The materials showed effective and selective adsorption toward anionic dyes such as methyl blue (M...

The past decade witnessed significant progress in the preparation, characterization, and applications of advanced materials, e.g. nanoparticles. The recent techniques for materials processing could enable new devices. Thus, several innovative processing technologies for the implementation of materials, including nanoparticles, into small devices ar...

Efficient and convenient methods for the removal of toxic heavy metal ions especially Cd(II) and Pb(II) from aqueous solutions is of great importance due to their serious threat to public health and the ecological system. In this study, two magnetic metal-organic frameworks (namily: Fe3O4@ZIF-8, and Fe3O4@UiO-66–NH2) were synthesized, fully charact...

Cellulose-MOFs (CelloMOFs) are attractive hybrid materials that make available a range of hitherto unattainable properties by conjugating cellulosic materials with metal-organic frameworks (MOFs). CelloMOFs have demonstrated a great potential to be applied in several fields such as water remediation, air purification, gas storage, sensing/biosensin...

Cell-penetrating peptides (CPPs) are a promising non-viral vector for gene and drug delivery. CPPs exhibit high cell transfection, and are biocompatible. They can be also conjugated with organic and inorganic nanomaterials, such as magnetic nanoparticles (MNPs), graphene oxide (GO), metal-organic frameworks (MOFs), and chitosan. Nanomaterials offer...

The creation of different pore size regimes into zeolitic imidazolate frameworks (ZIFs) to form hierarchical porous structures enhanced the material's performance for various applications. This book chapter focuses on the synthetic strategies for creating ZIFs with pore structures containing multiple pore regimes and provides readers with a broader...

There are various biomaterials in nature, but none fulfills all the requirements. Cellulose, eco-friendly material-based biopolymers, have been advanced biomedicine to satisfy most market demand and circumvent many ecological concerns. This review aims to present an overview of the state of the art in cellulose's knowledge and technical biomedical...

Cellulose-based materials have been advanced technologies that used in water remediation. They exhibit several advantages being the most abundant biopolymer in nature, high biocompatibility, and contain several functional groups. Cellulose can be prepared in several derivatives including nanomaterials such as cellulose nanocrystals (CNCs), cellulos...

Chitosan is a natural biopolymer with a high potential to serve as a carrier for drug and gene delivery. Several types of chitosan with and without modifications were reported for the delivery of gene therapeutic agents. Chitosan‐based materials are biocompatible, condense effectively with oligonucleotides, are cheap, and can be transfected in seve...

The applications of ILs in the preparation and recovery of several inorganic and hybrid materials are promising. ILs can be generally applied for several materials, such as metals, nonmetal elements, silicas, metal oxides, chalcogenides, and porous materials. ILs offer high recyclability and can be cost-effective after optimization, making them att...