Abdelrahman Mohamed Abdelgawad

Works (12)

Updated: August 8th, 2024 05:01

2024 journal article

Chitosan microflower-embedded gelatin sponges for advanced wound management and hemostatic applications

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 276.

By: M. El-Naggar*, K. Wael *, B. Hemdan*, A. Abdelgawad*, M. Elsabee*, E. El-Zayat*, M. Abdel Hady *, M. Hashem *

author keywords: Chitosan microflowers; Sponge materials; Antibacterial properties; Biofilm control; Biocompatibility; Hemostatic; Wound dressing
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 5, 2024

2024 journal article

Immobilization of biosynthesized gallium nanoparticles in Polyvinylpyrrolidone/Sodium alginate films: Potent bactericidal protection against food spoilage bacteria

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 274.

By: A. El-Sawaf *, A. Abdelgawad n, A. Nassar * & D. Elsherbiny *

author keywords: Gallium nanoparticles; Sodium alginate film; Spoilage bacteria
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: July 17, 2024

2023 article

Self-crosslinked polyvinyl alcohol/cellulose nanofibril cryogels loaded with synthesized aminophosphonates as antimicrobial wound dressings

Elsherbiny, D. A., Abdelgawad, A. M., Hemdan, B. A., Montaser, A. S., El-Sayed, I. E.-T., Jockenhoevel, S., & Ghazanfari, S. (2023, June 22). JOURNAL OF MATERIALS CHEMISTRY B.

By: D. Elsherbiny  n, A. Abdelgawad n, B. Hemdan*, A. Montaser *, I. El-Sayed*, S. Jockenhoevel  n, S. Ghazanfari  n

TL;DR: Self-crosslinked tri-component cryogels loaded with the synthesized α-aminophosphonate derivative, having both antimicrobial and anti-biofilm formation properties, can have a significant impact on the management of uprising wound infection. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: July 24, 2023

2023 article

Warp-knitted fabric structures for a novel biomimetic artificial intervertebral disc for the cervical spine

Jacobs, C. A. M., Abdelgawad, A. M., Jockenhoevel, S., Ito, K., & Ghazanfari, S. (2023, May 19). JOURNAL OF MATERIALS SCIENCE.

By: C. Jacobs *, A. Abdelgawad n, S. Jockenhoevel *, K. Ito * & S. Ghazanfari *

TL;DR: Several warp-knitted textile structures were assessed to ensure structural integrity and were capable of limiting the swelling of the hydrogel while withstanding its internal pressure and showing sufficient wear resistance, and the 2 × 1 lapping design with 4 layers was able to constrainHydrogel swelling, provide a high compressive strength, could facilitate cell infiltration and had dimensions within the range of a natural intervertebral disc. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: June 26, 2023

2022 journal article

Bioactive tri-component nanofibers from cellulose acetate/lignin// N-vanillidene-phenylthiazole copper-(II) complex for potential diaper dermatitis control

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 205, 703–718.

By: D. Elsherbiny *, A. Abdelgawad n, M. El-Naggar n, B. Hemdan*, S. Ghazanfari *, S. Jockenhoevel, O. Rojas n

author keywords: Cellulose acetate; Lignin; Electrospinning; Antibacterial; Diaper dermatitis
MeSH headings : Cellulose / analogs & derivatives; Copper; Dermatitis; Humans; Lignin / pharmacology; Nanofibers
TL;DR: The cytotoxicity, protein leakage, and biological results, together with the above studies, would advocate copper complex loaded CA/Lig fibers as a potential candidate for hygienic applications. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: April 25, 2022

2019 journal article

Chitosan nanoparticles: Polyphosphates cross-linking and protein delivery properties

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 136, 133–142.

By: A. Abdelgawad n & S. Hudson n

author keywords: Chitosan; Hexametaphosphate; Drug delivery
MeSH headings : Acetylation; Animals; Cattle; Chitosan / chemistry; Drug Carriers / chemistry; Nanoparticles / chemistry; Particle Size; Polyphosphates / chemistry; Serum Albumin, Bovine / chemistry
TL;DR: It is thought that increasing the availability of the binding sites in the HMP molecule would result in stronger ionic complexation with chitosan cationic charges, which improves particles' stability and lead to average size reduction. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: September 16, 2019

2017 journal article

Curdlan cryogels reinforced with cellulose nanofibrils for controlled release

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 5(6), 5754–5761.

By: M. El-Naggar n, A. Abdelgawad n, A. Tripathi  n & O. Rojas n

author keywords: Cryogels; Curdlan; Cellulose nanofibrils; Diclofenac sodium; Drug delivery
TL;DR: The addition of CNF significantly improved the in-vitro release of a nonsteroidal anti-inflammatory drug (diclofenac sodium), which is a promising alternative to current non-biodegradable systems. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Antibacterial activity of silver nanoparticles synthesized In-situ by solution spraying onto cellulose

CARBOHYDRATE POLYMERS, 147, 500–508.

By: J. Yan *, A. Abdelgawad n, M. El-Naggar n & O. Rojas n

author keywords: Microfibrills cellulose; Nanofibrills cellulose; Silver nanoparticles; In situ synthesis; Antibacterial activity
MeSH headings : Anti-Bacterial Agents / pharmacology; Cellulose / chemistry; Escherichia coli / drug effects; Metal Nanoparticles / chemistry; Metal Nanoparticles / ultrastructure; Silver / pharmacology; Spectroscopy, Fourier Transform Infrared
TL;DR: The present research demonstrates facile and fast method for in-situ antibacterial AgNPs loading on cellulose substrates and indicates that the particle size was found to be 11 and 26nm for AgnPs nucleated on NFC and MFC-based papers respectively. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Clean and high-throughput production of silver nanoparticles mediated by soy protein via solid state synthesis

JOURNAL OF CLEANER PRODUCTION, 144, 501–510.

By: A. Abdelgawad n, M. El-Naggar n, W. Eisa  n & O. Rojas n

author keywords: Soy protein; Silver nanoparticles; Solid state reactions
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Curdlan in fibers as carriers of tetracycline hydrochloride: Controlled release and antibacterial activity

CARBOHYDRATE POLYMERS, 154, 194–203.

By: M. El-Naggar n, A. Abdelgawad n, C. Salas  n & O. Rojas n

author keywords: Curdlan; Tetracycline hydrochloride; Antibacterial; Drug delivery; Nanofibers; Electrospinning
MeSH headings : Anti-Infective Agents / chemistry; Anti-Infective Agents / pharmacokinetics; Anti-Infective Agents / pharmacology; Calorimetry, Differential Scanning; Cross-Linking Reagents / chemistry; Delayed-Action Preparations; Drug Carriers / chemistry; Escherichia coli / drug effects; Escherichia coli / growth & development; Glutaral / chemistry; Microscopy, Electron, Scanning; Nanofibers / chemistry; Polyethylene Glycols / chemistry; Rheology; Solubility; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Surface Properties; Tetracycline / chemistry; Tetracycline / pharmacokinetics; Tetracycline / pharmacology; beta-Glucans / chemistry; beta-Glucans / pharmacokinetics
TL;DR: In-vitro activity measurements indicated a sustained and controlled TCH time-release pattern and excellent antibacterial activity against E. coli, as assessed by UV-vis spectroscopy and viable cell counting. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Fabrication and characterization of bactericidal thiol-chitosan and chitosan iodoacetamide nanofibres

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 94, 96–105.

By: A. Abdelgawad n, M. El-Naggar n, S. Hudson n & O. Rojas n

author keywords: Chitosan; Electrospinning; Thiol-chitosan; Chitosan iodoacetamide; Biocides; Antibacterial efficiency
MeSH headings : Anti-Bacterial Agents / chemical synthesis; Anti-Bacterial Agents / pharmacology; Chitosan / chemistry; Electrochemical Techniques; Escherichia coli / drug effects; Iodoacetamide / chemistry; Microbial Sensitivity Tests; Nanofibers / chemistry; Nanofibers / ultrastructure; Polyvinyl Alcohol / chemistry; Sulfhydryl Compounds / chemical synthesis; Sulfhydryl Compounds / pharmacology; Tensile Strength
TL;DR: It was proved that the electrospun fibers containing TCs or CsIA display a superior antibacterial activity against negative bacteria E. Coli with a minimum inhibitory concentration (MIC) of 400μg/ml. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Antimicrobial wound dressing nanofiber mats from multicomponent (chitosan/silver-NPs/polyvinyl alcohol) systems

CARBOHYDRATE POLYMERS, 100, 166–178.

By: A. Abdelgawad n, S. Hudson n & O. Rojas n

author keywords: Silver nanoparticles; Chitosan; Electrospinning; Antimicrobial; Polyvinyl alcohol
MeSH headings : Anti-Infective Agents / chemistry; Anti-Infective Agents / pharmacology; Bandages / microbiology; Chitosan / chemistry; Drug Carriers / chemistry; Escherichia coli / drug effects; Glucose / chemistry; Green Chemistry Technology; Metal Nanoparticles / chemistry; Nanofibers / chemistry; Polyvinyl Alcohol / chemistry; Reducing Agents / chemistry; Silver / chemistry; Silver Nitrate / chemistry; Temperature; Wounds and Injuries
TL;DR: The results showed superior properties and synergistic antibacterial effects by combining chitosan with Ag-NPs, which are superior to conventional nanofiber mats loaded with silver nanoparticles. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

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