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HomeNanotechnologyAgar-Tragacanth/Silk Fibroin Hydrogel Loaded with Zn-Primarily based MOF

Agar-Tragacanth/Silk Fibroin Hydrogel Loaded with Zn-Primarily based MOF

In a latest article printed within the journal Scientific Experiences, researchers current a novel nanobiocomposite (NBC) fabricated from agar, tragacanth gum, silk fibroin, and metallic–natural framework-5 (MOF-5) for potential biomedical purposes. The hydrogel was investigated for its organic exercise, together with antimicrobial properties and potential for most cancers remedy and wound therapeutic.

Novel Nanobiocomposite: Agar-Tragacanth/Silk Fibroin Hydrogel Loaded with Zn-Based MOF

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Hydrogels are versatile cross-linked community matrices of polymers that supply distinctive physicochemical properties, reminiscent of hydrophilicity, tremendous absorbency, and softness. These properties make them precious in varied fields, together with drug supply, tissue engineering, and wound dressing. Pure hydrogels, derived from polymers like chitosan and alginate, stand out for his or her low cytotoxicity and biocompatibility, making them very best for biomedical purposes.

The mix of pure polymers like agar (Ag) and tragacanth gum (TG) facilitates the formation of multi-polymeric hydrogels, leveraging their considerable hydroxyl practical teams for cross-linking. Silk fibroin (SF), derived from the Bombyx mori silkworm, is a pure protein famend for its biocompatibility, antibacterial properties, and mechanical power, making it a promising materials in biomedicine.

The Present Research

The chemical synthesis course of started with the preparation of Ag-TG hydrogel, the place Ag and TG had been dissolved in distilled water and blended beneath specified situations. SF was extracted from silkworm cocoons by way of a sequence of steps, together with boiling, washing, and dissolution in LiBr answer, adopted by dialysis. The Ag-TG hydrogel was then mixed with extracted SF and stirred. MOF-5 was synthesized individually and activated.

The ultimate NBC, Ag-TG hydrogel on SF mixed with MOF-5, was ready by dispersing the parts in water. The ensuing answer underwent freeze-drying and dehydration to yield the NBC for additional evaluation.

The next organic assays had been carried out to evaluate the NBC’s properties:

  • The Trypan blue exclusion take a look at evaluated its biocompatibility and anticancer exercise utilizing HEK293T, MCF-7, and Okay-562 cell strains.
  • A hemolysis assay was used to measure blood compatibility by assessing human crimson blood cell lysis proportion.
  • An antibacterial assay decided the inhibition price of E. coli and S. aureus micro organism cultures.
  • Statistical evaluation utilizing SPSS Statistics 22.0 supplied insights into the importance of the outcomes.

Characterization was carried out utilizing varied strategies. Organic assays had been carried out utilizing an ELISA reader to judge the biocompatibility, anticancer exercise, blood compatibility, and antibacterial properties of the NBC.

Outcomes and Dialogue

The outcomes of the synthesis and characterization of the NBC are detailed under:

Fourier-transform infrared (FT-IR) evaluation: FT-IR evaluation was carried out to look at the chemical bonds and practical teams of the synthesized NBC parts at every stage of preparation. Spectra revealed attribute indicators equivalent to the Ag-TG hydrogel, Ag-TG hydrogel/SF, and Ag-TG hydrogel/SF/MOF-5, indicating profitable synthesis and incorporation of parts.

Area-emission scanning electron microscopy (FE-SEM) imaging: FE-SEM imaging was employed to investigate the morphology of the NBC. Microscopic pictures confirmed the porous construction of Ag-TG hydrogel, the addition of SF biopolymer strands, and the presence of MOF-5 throughout the composite, confirming the profitable synthesis and uniform distribution of parts.

Vitality-dispersive X-Ray (EDX) evaluation: EDX supplied insights into the basic composition of the synthesized NBC. The spectra exhibited peaks equivalent to carbon (C), oxygen (O), nitrogen (N), and zinc (Zn), confirming the presence of Ag, TG, SF, and MOF-5 parts, respectively.

X-Ray diffraction evaluation (XRD): XRD evaluation was carried out to look at the crystallinity of MOF-5 and the NBC. Patterns revealed attribute peaks equivalent to MOF-5 and a mix of crystalline MOF-5 and amorphous polymer parts within the NBC.

Thermogravimetric evaluation (TGA): TGA was carried out to judge the thermal stability and decomposition habits of the NBC. Thermograms confirmed distinct mass loss phases, adopted by the degradation of TG, Ag, and SF particular person parts.

Cell strains proliferation assay: Organic assays had been carried out to evaluate the NBC’s biocompatibility and anti-cancer properties utilizing HEK293T, MCF-7, and Okay-562 cell strains. Outcomes demonstrated vital inhibition of MCF-7 and Okay-562 most cancers cell proliferation, whereas HEK293T cell proliferation remained unaffected, indicating the NBC’s potential as an anti-cancer agent.

Blood compatibility: Hemolysis assay outcomes confirmed a big lytic impact of the NBC extract on crimson blood cells (RBCs), indicating potential blood compatibility considerations.

Micro organism progress inhibition: The NBC exhibited vital antibacterial exercise towards E. coli and S. aureus strains (with inhibition charges of 76.08 % and 69.19 %, respectively), suggesting its potential utility as an antibacterial agent.


These findings spotlight the potential of Ag-TG hydrogel/SF/MOF-5 NBC for wound therapeutic and most cancers remedy purposes. The biocompatible and non-toxic nature of the NBC, together with its enhanced antibacterial properties, make it a promising materials for future biomedical research.

General, the research advances our understanding of nanomaterials’ potential purposes in biomedical and associated fields. Additional analysis is really helpful to discover the complete potential of this NBC in varied biomedical purposes.

Journal Reference

Lalebeigi, F., et al. (2024). Agar-tragacanth/silk fibroin hydrogel containing Zn-based MOF as a novel nanobiocomposite with organic exercise. Scientific Experiences.



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