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Nanocomposite of functional silver metal containing curcumin biomolecule model systems: Protein BSA bioavailability.

Abstract：

:Curcumin, a constituent of Curcuma longa L-Zingiberaceae is used in traditional Indian and worldwide medicine and shows anticancer and antioxidant properties. Curcumin has numerous biological and pharmacological activities but due to its hydrophobic nature, the major drawback is poor absorption and rapid elimination, rendering curcumin with the tag of a poor biomaterial. Hence, there is a need to develop functional metal containing curcumin model systems (FMCCMS) as a metallo-biomolecule to enhance the bioavailability of curcumin. We designed the interaction of silver metal ion with curcumin to form curcumin-silver nanocomposite (CURC-AgNCP) via ultrasonic synthetic route. Formations of FMCCMS were characterized by spectroscopic techniques. The crystalline face-centered cubic pattern and particle size of the nanocomposite was evaluated using X-ray diffraction and high-resolution transmission electron microscopy. The bonding of silver metal to curcumin was confirmed by X-ray photon spectroscopy. Interaction of the nanocomposite with bovine serum albumin (BSA) protein was performed using excitation, emission, and circular dichroism spectroscopy. In binding interaction of BSA, the negative value of ∆S° (-358.04 J mol-1 K-1) and ∆H° (-129.42 KJ mol-1) demonstrates the hydrophilic nature of the nanocomposite. The binding distance r evaluated according to the Forster resonance energy transfer theory and was 4.69 nm for CURC-AgNCP, which suggested non-radiative transfer of energy between CURC-AgNCP and BSA. The role of FMCCMS metallo-biomolecule CURC-AgNCP in medicine for cancer activity can have immense importance and hence we performed Sulphorhodamine B based in-vitro cytotoxicity assay on human breast cancer Michigan Cancer Foundation-7 cell line.

journal_name

J Inorg Biochem

journal_title

Journal of inorganic biochemistry

authors

Shedge AA,Pansare SV,Khairkar SR,Chhatre SY,Chakrabarti S,Nagarkar AA,Pansare AV,Patil VR

doi

10.1016/j.jinorgbio.2020.111210

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

111210

eissn

0162-0134

issn

1873-3344

pii

S0162-0134(20)30238-5

journal_volume

212

pub_type

杂志文章

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