Preparation of pectin-tannic acid coated core-shell nanoparticle for enhanced bioavailability and antihyperlipidemic activity of curcumin

The versatile one-pot green synthesis of a highly concentrated and stable colloidal dispersion of silver nanoparticles (Ag NPs) was carried out using the self-assembled tannic acid without using any other hazardous chemicals. Tannic acid (Plant-based polyphenol) was used as a reducing and stabilizing agent for silver nitrate in a mild alkaline condition. The synthesized Ag NPs were characterized for their concentration, capping, size distribution, and shape. The experimental results confirmed the successful synthesis of nearly spherical and highly concentrated (2281 ppm) Ag NPs, capped with poly-tannic acid (Ag NPs-PTA). The average particle size of Ag NPs-PTA was found to be 9.90 ± 1.60 nm. The colloidal dispersion of synthesized nanoparticles was observed to be stable for more than 15 months in the ambient environment (25 °C, 65% relative humidity). The synthesized AgNPs-PTA showed an effective antimicrobial activity against Staphylococcus Aureus (ZOI 3.0 mM) and Escherichia coli (ZOI 3.5 mM). Ag NPs-PTA also exhibited enhanced catalytic properties. It reduces 4-nitrophenol into 4-aminophenol in the presence of NaBH4 with a normalized rate constant (Knor = K/m) of 615.04 mL·s−1·mg−1. For comparison, bare Ag NPs show catalytic activity with a normalized rate constant of 139.78 mL·s−1·mg−1. Furthermore, AgNPs-PTA were stable for more than 15 months under ambient conditions. The ultra-high catalytic and good antimicrobial properties can be attributed to the fine size and good aqueous stability of Ag NPs-PTA. The unique core-shell structure and ease of synthesis render the synthesized nanoparticles superior to others, with potential for large-scale applications, especially in the field of catalysis and medical.

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Synthesis of silver nanoparticles decorated on core-shell structured tannic acid-coated iron oxide nanospheres for excellent electrochemical detection and efficient catalytic reduction of hazardous 4-nitrophenol

Composites Part B Engineering ◽

10.1016/j.compositesb.2018.10.084 ◽

2019 ◽

Vol 162 ◽

pp. 33-42 ◽

Cited By ~ 31

Author(s):

Arumugam Sangili ◽

Muthaiah Annalakshmi ◽

Shen-Ming Chen ◽

Paramasivam Balasubramanian ◽

Mahalingam Sundrarajan

Keyword(s):

Silver Nanoparticles ◽

Iron Oxide ◽

Electrochemical Detection ◽

Tannic Acid ◽

Catalytic Reduction ◽

Core Shell

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Metastable intermixed Core-shell Al@M(IO3)x nanocomposites with improved combustion efficiency by using tannic acid as a functional interfacial layer

Chemical Engineering Journal ◽

10.1016/j.cej.2019.123369 ◽

2020 ◽

Vol 384 ◽

pp. 123369 ◽

Cited By ~ 3

Author(s):

De-Yun Tang ◽

Jieyao Lyu ◽

Wei He ◽

Jin Chen ◽

Guangcheng Yang ◽

...

Keyword(s):

Tannic Acid ◽

Interfacial Layer ◽

Combustion Efficiency ◽

Core Shell

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Green Synthesis of Highly Concentrated and Stable Colloidal Dispersion of Core-Shell Silver Nanoparticles (AgNPs-Shell) and their Antimicrobial and Ultra-high Catalytic Properties

10.20944/preprints202104.0007.v1 ◽

2021 ◽

Author(s):

Azam Ali ◽

Mehrukh Zehravi ◽

Muhammad Humble Khalid Treen ◽

Jiri Militky ◽

Fiaz Hussain ◽

...

Keyword(s):

Green Synthesis ◽

Tannic Acid ◽

Large Scale ◽

Catalytic Properties ◽

Average Particle Size ◽

Colloidal Dispersion ◽

Alkaline Condition ◽

Core Shell ◽

Average Particle ◽

One Pot

The versatile one-pot green synthesis of a highly concentrated and stable colloidal dispersion of AgNPs was carried out using the self-assembled tannic acid without using any other hazardous chemicals. Tannic acid (Plant-based polyphenol) was used as a reducing and stabilizing agent for silver nitrate in a mild alkaline condition. The synthesized AgNPs were characterized for their concentration, capping, size distribution, and shape. The experimental results confirmed the successful synthesis of nearly spherical and highly concentrated (2281 ppm) AgNPs, capped with poly-tannic acid (AgNPs-PTA). The average particle size of AgNPs-PTA was found 9.90 ± 1.60 nm. The colloidal dispersion of synthesized nanoparticles was observed stable for more than 15 months in the ambient environment (25 oC, 65 % relative humidity). The synthesized AgNPs-PTA showed an effective antimicrobial activity against Staphylococcus Aureus Escherichia coli. Ag-PTA also exhibited enhanced catalytic properties. It reduces 4-nitrophenol into 4-aminophenol in the presence of NaBH4 with a normalized rate constant (Knor = K/m) of 615.04 mL·s-1·mg-1. Furthermore, AgNPs-PTA were stable for more than 15 months under ambient conditions. The unique core-shell structure and ease of synthesis render the synthesized nanoparticles superior to others, with potential for large-scale applications, especially in the field of catalysis and biomedical.

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Tumor microenvironment-responsive polydopamine-based core/shell nanoplatform for synergetic theranostics

Journal of Materials Chemistry B ◽

10.1039/d0tb00248h ◽

2020 ◽

Vol 8 (18) ◽

pp. 4056-4066 ◽

Cited By ~ 1

Author(s):

Qian Chen ◽

Xueru Shan ◽

Suqing Shi ◽

Chunzhu Jiang ◽

Tinghua Li ◽

...

Keyword(s):

Tumor Microenvironment ◽

Mr Imaging ◽

Tannic Acid ◽

Core Shell ◽

Composite Nanoparticle ◽

Promising Application

A tannic acid–Fe3+ networks-functionalized polydopamine-based composite nanoparticle was constructed and demonstrated the promising application for T1/T2-weighted MR imaging-guided synergistic treatment of PTT and reductant/photothermal-enhanced CDT.

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Universal one-pot, one-step synthesis of core-shell nanocomposites with self-assembled tannic acid shell and their antibacterial and catalytic activities

Journal of Applied Polymer Science ◽

10.1002/app.45829 ◽

2017 ◽

Vol 135 (6) ◽

pp. 45829 ◽

Cited By ~ 5

Author(s):

Yan Fang ◽

Jiajun Tan ◽

Tian Lan ◽

Stanley Guo Feng Foo ◽

Do Gi Pyun ◽

...

Keyword(s):

Tannic Acid ◽

Core Shell ◽

One Pot ◽

Catalytic Activities ◽

One Step ◽

Self Assembled

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Green Fabrication of Hydrogel-Immobilized Au@Ag Nanoparticles Using Tannic Acid and Application in Catalysis

New Journal of Chemistry ◽

10.1039/d1nj00804h ◽

2021 ◽

Author(s):

Hengxi He ◽

Didier Astruc ◽

Haibin Gu

Keyword(s):

Tannic Acid ◽

Ag Nanoparticles ◽

Core Shell ◽

Step Method ◽

Shell Nanoparticles ◽

Active Core ◽

Catalytically Active ◽

One Step ◽

Core Shell Nanoparticles

Highly catalytically active core-shell nanoparticles (NPs) have attracted great attention towards applications. Herein, core-shell Au@AgNPs were simply obtained via a green and cheap one-step method using tannic acid (TA) as...

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