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Duan L, Xu J, Cao L, Lu L, Zang L, Hu S, Fu R, Wang K. Enhanced Electrocatalytic Performance of the FePt/PPy-C Composite toward Methanol Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44718-44727. [PMID: 39139126 DOI: 10.1021/acsami.4c07065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
A novel FePt/PPy-C composite nanomaterial has been designed and investigated as a methanol oxidation reaction (MOR) electrocatalyst. The FePt nanoparticles with an average diameter of about 3 nm have been prepared by the co-reduction method and then loaded onto the PPy-C composite support. The electrocatalytic performance is affected by the composition of the FePt nanoparticles. The experimental results indicated that the Fe1.5Pt1/PPy-C catalyst exhibited excellent catalytic activity and stability for MOR, with mass activity and specific activity of 1.76 A mgPt-1 and 2.71 mA cm-2, respectively, which are 5.18 and 4.60 times higher than that of the commercial Pt/C catalyst. Density functional theory (DFT) has been employed to simulate the electrical structures of catalyst supports, and the mechanism of the methanol oxidation process has been further analyzed. The heterojunctions of the PPy-C interface could accelerate the electron migration from the electrocatalytic center to the electrodes. The possibility of methanol oxidation has been improved effectively, which can be confirmed by the d-band center and CO adsorption energy on FePt nanoparticles in the DFT calculation results.
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Affiliation(s)
- Lijun Duan
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jinhao Xu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Lingzhi Cao
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Liying Lu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Likun Zang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shuxian Hu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Rongpeng Fu
- School of Mathematics and Physics, Handan University, Handan 056005, China
| | - Kai Wang
- School of Mathematics and Physics, Handan University, Handan 056005, China
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Saeed U, Mahmood R, Fatima B, Hussain D, Liaqat S, Imran M, Ali Chohan T, Saqib Khan M, Akhter S, Najam-Ul-Haq M. Novel thymohydroquinone gallate derivative loaded ligand modified quantum dots as pH-sensitive multi-modal theragnostic agent for cancer treatment. Eur J Pharm Biopharm 2024; 200:114312. [PMID: 38735345 DOI: 10.1016/j.ejpb.2024.114312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/14/2024] [Accepted: 05/04/2024] [Indexed: 05/14/2024]
Abstract
BACKGROUND Nanomedicine, as the combination of radiopharmaceutical and nanocarrier (QDs), is developed for treating cancer. Gallic acid is antimutagenic, anti-inflammatory, and anti-carcinogenic. Typical retention time of gallic acid is approximately 4 to 8 h. To increase the retention time gallic acid is converted to prodrug by adding lipophilic moieties, encapsulating in lipophilic nanoparticles, or liposome formation. Similarly, thymoquinone is powerful antioxidant, anti-apoptotic, and anti-inflammatory effect, with reduced DNA damage. METHODS In this study, a hydrophilic drug (gallic acid) is chemically linked to the hydrophobic drug (thymohydroquinone) to overcome the limitations of co-delivery of drugs. Thymohydroquinone (THQG) as the combination of gallic acid (GA) and thymoquinone (THQ) is loaded onto the PEI functionalized antimonene quantum dots (AM-QDs) and characterized by FTIR, UV-visible spectroscopy, X-ray powder diffraction, Zeta sizer, SEM and AFM, in-vitro and in-vivo assay, and hemolysis. RESULTS The calculated drug loading efficiency is 90 %. Drug release study suggests the drug combination is pH sensitive and it can encounters acidic pH, releasing the drug from the nanocarrier. The drug and drug-loaded nanocarrier possesses low cytotoxicity and cell viability on MCF-7 and Cal-27 cell lines. The proposed drug delivery system is radiolabeled with Iodine-131 (131I) and Technetium (99mTc) and its deposition in various organs of rats' bodies is examined by SPECT-CT and gamma camera. Hemolytic activity of 2, 4, 6, and 8 μg/mL is 1.78, 4.16, 9.77, and 15.79 %, respectively, reflecting low levels of hemolysis. The system also sustains oxidative stress in cells and environment, decreasing ROS production to shield cells and keep them healthy. CONCLUSIONS The results of this study suggest that the proposed drug carrier system can be used as a multi-modal theragnostic agent in cancer treatment.
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Affiliation(s)
- Ummama Saeed
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | | | - Batool Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Sana Liaqat
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Imran
- Biochemistry Section, Institute of Chemical Sciences, University of Peshawar, Pakistan
| | - Tahir Ali Chohan
- Department of Biochemistry, University of Veterinary and Animal Science, Lahore, Pakistan
| | | | | | - Muhammad Najam-Ul-Haq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan.
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Elkady FM, Hashem AH, Salem SS, El-Sayyad GS, Tawab AA, Alkherkhisy MM, Abdulrahman MS. Unveiling biological activities of biosynthesized starch/silver-selenium nanocomposite using Cladosporium cladosporioides CBS 174.62. BMC Microbiol 2024; 24:78. [PMID: 38459502 PMCID: PMC10921769 DOI: 10.1186/s12866-024-03228-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 02/18/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Microbial cells capability to tolerate the effect of various antimicrobial classes represent a major worldwide health concern. The flexible and multi-components nanocomposites have enhanced physicochemical characters with several improved properties. Thus, different biological activities of biosynthesized starch/silver-selenium nanocomposite (St/Ag-Se NC) were assessed. METHODOLOGY The St/Ag-Se NC was biosynthesized using Cladosporium cladosporioides CBS 174.62 (C. cladosporioides) strain. The shape and average particle size were investigated using scanning electron microscope (SEM) and high-resolution transmission electron microscope (HR-TEM), respectively. On the other hand, the St/Ag-Se NC effect on two cancer cell lines and red blood cells (RBCs) was evaluated and its hydrogen peroxide (H2O2) scavenging effect was assessed. Moreover, its effects on various microbial species in both planktonic and biofilm growth forms were examined. RESULTS The St/Ag-Se NC was successfully biosynthesized with oval and spherical shape and a mean particle diameter of 67.87 nm as confirmed by the HR-TEM analysis. St/Ag-Se NC showed promising anticancer activity toward human colorectal carcinoma (HCT-116) and human breast cancer (MCF-7) cell lines where IC50 were 21.37 and 19.98 µg/ml, respectively. Similarly, little effect on RBCs was observed with low nanocomposite concentration. As well, the highest nanocomposite H2O2 scavenging activity (42.84%) was recorded at a concentration of 2 mg/ml. Additionally, Staphylococcus epidermidis (S. epidermidis) ATCC 12,228 and Candida albicans (C. albicans) ATCC 10,231 were the highly affected bacterial and fungal strains with minimum inhibitory concentrations (MICs) of 18.75 and 50 µg/ml, respectively. Moreover, the noticeable effect of St/Ag-Se NC on microbial biofilm was concentration dependent. A high biofilm suppression percentage, 87.5% and 68.05%, were recorded with S. epidermidis and Staphylococcus aureus (S. aureus) when exposed to 1 mg/ml and 0.5 mg/ml, respectively. CONCLUSION The biosynthesized St/Ag-Se NC showed excellent antioxidant activity, haemocompatibility, and anti-proliferative effect at low concentrations. Also, it exhibited promising antimicrobial and antibiofilm activities.
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Affiliation(s)
- Fathy M Elkady
- Microbiology and Immunology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, 11884, Egypt
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
| | - Gharieb S El-Sayyad
- Department of Microbiology and Immunology, Faculty of Pharmacy, Ahram Canadian (ACU), Giza, Egypt.
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt.
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Ahmed Abdel Tawab
- Department of Microbiology and Immunology, Faculty of Medicine, Al-Azhar University, Cairo, 11884, Egypt
| | - Mohammad M Alkherkhisy
- Department of Microbiology and Immunology, Faculty of Medicine, Al-Azhar University, Cairo, 11884, Egypt
| | - Mohammed S Abdulrahman
- Microbiology and Immunology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, 11884, Egypt
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Tian D, Qiao Y, Peng Q, Xu X, Shi B. Anti-biofilm mechanism of a synthetical low molecular weight poly-d-mannose on Salmonella Typhimurium. Microb Pathog 2024; 187:106515. [PMID: 38160987 DOI: 10.1016/j.micpath.2023.106515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
In this study, a low molecular weight poly-d-mannose (LMWM) was separated from a mixed polysaccharide synthesized previously. Monosaccharide composition, Fourier-Transform infrared spectroscopy (FT-IR), periodate oxidation and smith degradation were determined. After safety evaluation, the inhibition of LMWM on the different biofilm formation stages of Salmonella enterica serovar Typhimurium (S. Typhimurium) was tested in vitro. Furthermore, the effect of LMWM on the adhesion of S. Typhimurium to Caco-2 cells and cell surface hydrophobicity (CSH) were observed. Results indicated that LMWM was a homopolysaccharide without cytotoxicity and hemolysis, containing both α-mannose and β-mannose. It showed obvious anti-biofilm activity on S. Typhimurium and mainly activated on the initial adhesion and formation stage, even better than the commercial S. cerevisiae mannan (CM). LMWM inhibited the adhesion of S. Typhimurium on Caco-2 cells with the inhibition rate of 61.04 % at 2 mg/ml. Meanwhile, LMWM decreased the hydrophobicity of S. Typhimurium cell surface. In conclusion, the inhibitory effect on S. Typhimurium biofilm was not caused by bacteriostatic or bactericidal activity of LMWM. The specific anti-adhesion and the decrease of bacterial CSH by LMWM may closely relate to anti-biofilm mechanism. This study provides some supports for the application of LMWM as antibiotics alternative on S. Typhimurium in the future.
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Affiliation(s)
- Dandan Tian
- Feed Research Institute, Chinese Academy of Agricultural Sciences, No. 12 South Zhongguancun Street, Beijing, 100081, China
| | - Yu Qiao
- Feed Research Institute, Chinese Academy of Agricultural Sciences, No. 12 South Zhongguancun Street, Beijing, 100081, China
| | - Qing Peng
- Feed Research Institute, Chinese Academy of Agricultural Sciences, No. 12 South Zhongguancun Street, Beijing, 100081, China
| | - Xiaoqing Xu
- Feed Research Institute, Chinese Academy of Agricultural Sciences, No. 12 South Zhongguancun Street, Beijing, 100081, China.
| | - Bo Shi
- Feed Research Institute, Chinese Academy of Agricultural Sciences, No. 12 South Zhongguancun Street, Beijing, 100081, China.
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El-Sabban HA, Deyab MA. Novel highly efficient ternary ZnO wrapped PPy-NTs/g-C 3N 4 nanocomposite as an epoxy coating for corrosion protection. Sci Rep 2023; 13:21410. [PMID: 38049495 PMCID: PMC10696043 DOI: 10.1038/s41598-023-48557-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/28/2023] [Indexed: 12/06/2023] Open
Abstract
The main goal of this study is to develop an epoxy coating coupled with an organic-inorganic hybrid nanocomposite that can be used as a corrosion-inhibiting pigment on carbon steel. Herein, polypyrrole nanotubes (PPy-NTs), polypyrrole nanotubes/g-C3N4 (PPy-NTs/g-C3N4) and novel nano-composite polypyrrole nanotubes/g-C3N4/ZnO (PGZ) were prepared by facile wet impregnation approach. The developed pigments were investigated using XRD, FTIR, FE-SEM equipped EDS. Electrochemical impedance spectroscopy (EIS) and polarization measurements were used to assess the behavior of the prepared pigments on the anticorrosion performance of epoxy resin coatings. EIS experiments revealed that introducing nano-pigments to neat coatings enhanced the epoxy resin and charge transfer resistance. The anticorrosion performance of the three nano-pigments was assessed as follows: PGZ ˃ PPy-NTs/g-C3N4˃ PPy-NTs.
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Affiliation(s)
- Heba A El-Sabban
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt
- Central Analytical Laboratories, Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El Zomor St., Nasr City, 11727, Cairo, Egypt
| | - M A Deyab
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt.
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Golba S, Loskot J. The Alphabet of Nanostructured Polypyrrole. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7069. [PMID: 38004999 PMCID: PMC10672593 DOI: 10.3390/ma16227069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/25/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023]
Abstract
This review is devoted to polypyrrole and its morphology, which governs the electroactivity of the material. The macroscopic properties of the material are strictly relevant to microscopic ordering observed at the local level. During the synthesis, various (nano)morphologies can be produced. The formation of the ordered structure is dictated by the ability of the local forces and effects to induce restraints that help shape the structure. This review covers the aspects of morphology and roughness and their impact on the final properties of the modified electrode activity in selected applications.
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Affiliation(s)
- Sylwia Golba
- Institute Materials Engineering, University of Silesia, 75 Pulku Piechoty Street 1A, 41-500 Chorzow, Poland
| | - Jan Loskot
- Department of Physics, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03 Hradec Králové, Czech Republic;
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Tian D, Qiao Y, Peng Q, Zhang Y, Gong Y, Shi L, Xiong X, He M, Xu X, Shi B. A Poly-D-Mannose Synthesized by a One-Pot Method Exhibits Anti-Biofilm, Antioxidant, and Anti-Inflammatory Properties In Vitro. Antioxidants (Basel) 2023; 12:1579. [PMID: 37627574 PMCID: PMC10451989 DOI: 10.3390/antiox12081579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/18/2023] [Accepted: 08/06/2023] [Indexed: 08/27/2023] Open
Abstract
In this study, D-mannose was used to synthesize poly-D-mannose using a one-pot method. The molecular weight, degree of branching, monosaccharide composition, total sugar content, and infrared spectrum were determined. In addition, we evaluated the safety and bioactivity of poly-D-mannose including anti-pathogen biofilm, antioxidant, and anti-inflammatory activity. The results showed that poly-D-mannose was a mixture of four components with different molecular weights. The molecular weight of the first three components was larger than 410,000 Da, and that of the fourth was 3884 Da. The branching degree of poly-D-mannose was 0.53. The total sugar content was 97.70%, and the monosaccharide was composed only of mannose. The infrared spectra showed that poly-D-mannose possessed characteristic groups of polysaccharides. Poly-D-mannose showed no cytotoxicity or hemolytic activity at the concentration range from 0.125 mg/mL to 8 mg/mL. In addition, poly-D-mannose had the best inhibition effect on Salmonella typhimurium at the concentration of 2 mg/mL (68.0% ± 3.9%). The inhibition effect on Escherichia coli O157:H7 was not obvious, and the biofilm was reduced by 37.6% ± 2.9% at 2 mg/mL. For Staphylococcus aureus and Bacillus cereus, poly-D-mannose had no effect on biofilms at low concentration; however, 2 mg/mL of poly-D-mannose showed inhibition rates of 33.7% ± 6.4% and 47.5% ± 4%, respectively. Poly-D-mannose showed different scavenging ability on free radicals. It showed the best scavenging effect on DPPH, with the highest scavenging rate of 74.0% ± 2.8%, followed by hydroxyl radicals, with the scavenging rate of 36.5% ± 1.6%; the scavenging rates of superoxide anion radicals and ABTS radicals were the lowest, at only 10.1% ± 2.1% and 16.3% ± 0.9%, respectively. In lipopolysaccharide (LPS)-stimulated macrophages, poly-D-mannose decreased the secretion of nitric oxide (NO) and reactive oxygen species (ROS), and down-regulated the expression of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6). Therefore, it can be concluded that poly-D-mannose prepared in this research is safe and has certain biological activity. Meanwhile, it provides a new idea for the development of novel prebiotics for food and feed industries or active ingredients used for pharmaceutical production in the future.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Xiaoqing Xu
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.T.); (Y.Q.); (Q.P.); (Y.Z.); (Y.G.); (L.S.); (X.X.); (M.H.)
| | - Bo Shi
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.T.); (Y.Q.); (Q.P.); (Y.Z.); (Y.G.); (L.S.); (X.X.); (M.H.)
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Self-assembled quantum dots decorated Polypyrrole based multifunctional nanocomposite. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Borges MHR, Nagay BE, Costa RC, Souza JGS, Mathew MT, Barão VAR. Recent advances of polypyrrole conducting polymer film for biomedical application: Toward a viable platform for cell-microbial interactions. Adv Colloid Interface Sci 2023; 314:102860. [PMID: 36931199 DOI: 10.1016/j.cis.2023.102860] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/04/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Polypyrrole (PPy) is one of the most studied conductive polymers due to its electrical conductivity and biological properties, which drive the possibility of numerous applications in the biomedical area. The physical-chemical features of PPy allow the manufacture of biocompatible devices, enhancing cell adhesion and proliferation. Furthermore, owing to the electrostatic interactions between the negatively charged bacterial cell wall and the positive charges in the polymer structure, PPy films can perform an effective antimicrobial activity. PPy is also frequently associated with biocompatible agents and antimicrobial compounds to improve the biological response. Thus, this comprehensive review appraised the available evidence regarding the PPy-based films deposited on metallic implanted devices for biomedical applications. We focus on understanding key concepts that could influence PPy attributes regarding antimicrobial effect and cell behavior under in vitro and in vivo settings. Furthermore, we unravel the several agents incorporated into the PPy film and strategies to improve its functionality. Our findings suggest that incorporating other elements into the PPy films, such as antimicrobial agents, biomolecules, and other biocompatible polymers, may improve the biological responses. Overall, the basic properties of PPy, when combined with other composites, electrostimulation techniques, or surface treatment methods, offer great potential in biocompatibility and/or antimicrobial activities. However, challenges in synthesis standardization and potential limitations such as low adhesion and mechanical strength of the film must be overcome to improve and broaden the application of PPy film in biomedical devices.
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Affiliation(s)
- Maria H R Borges
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Bruna E Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Raphael C Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - João Gabriel S Souza
- Dental Research Division, Guarulhos University (UNG), Guarulhos, Sāo Paulo 07023-070, Brazil; Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais 39401-303, Brazil
| | - Mathew T Mathew
- Department of Biomedical Sciences, University of Illinois, College of Medicine, Rockford, IL 61107, USA
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil.
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Arooj A, Tahir K, Ullah Khan A, Khan A, Jevtovic V, El-Zahhar AA, Alghamdi MM, Al-Shehri HS, Abdu Musad Saleh E, Asghar BH. One-step fabrication of surfactant mediated Pd/SiO2, A prospect toward therapeutic and photocatalytic applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wu Y, Cui J, Ling Y, Wang X, Fu J, Jing C, Cheng J, Ma Y, Liu J, Liu S. Polypyrrole Cubosomes with Ordered Ultralarge Mesopore for Controllable Encapsulation and Release of Albumin. NANO LETTERS 2022; 22:3685-3690. [PMID: 35446565 DOI: 10.1021/acs.nanolett.2c00330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite substantial progress in porous materials over past years, controllable preparation of conductive polymers (CPs) with continuous large pores is challenging, which are important for diverse applications, including energy storage, electrocatalysis, and biological separations. Here, we develop an unprecedented ordered bicontinuous mesoporous PPy cubosomes (mPPy-cs) using a soft-template strategy, resulting in ultralarge pores of ∼45 nm and high specific surface area of 69.5 m2 g-1. Along with their unique characteristics of adjustable surface charges and sensitivity to pH, mPPy-cs exhibited a near quantitative adsorption of albumin within 30 min, enabling efficient separation from immunoglobulin G, a typical inclusion in commercial albumin products. Moreover, the absorbed albumin could be further released in a controlled manner by lowering the pH. This work provides a feasible strategy for bottom-up construction of CPs with tailored pore sizes and nanoarchitectures, expected to attract significant attention to their properties and applications.
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Affiliation(s)
- Yong Wu
- State Key Laboratory of Precision Spectroscopy, Engineering Research Center of Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P.R. China
| | - Jing Cui
- State Key Laboratory of Precision Spectroscopy, Engineering Research Center of Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P.R. China
- Shanghai Academy of Quality Management, Shanghai 200050, China
| | - Yang Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xinyue Wang
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jianwei Fu
- School of Materials Science and Engineering, Zhengzhou University, 75 Daxue Road, Zhengzhou 450052, P.R. China
| | - Chengbin Jing
- State Key Laboratory of Precision Spectroscopy, Engineering Research Center of Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P.R. China
| | - Jiangong Cheng
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P.R. China
| | - Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jinyao Liu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shaohua Liu
- State Key Laboratory of Precision Spectroscopy, Engineering Research Center of Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P.R. China
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Pradeep H, M B, Suresh S, Thadathil A, Periyat P. Recent trends and advances in polyindole-based nanocomposites as potential antimicrobial agents: a mini review. RSC Adv 2022; 12:8211-8227. [PMID: 35424771 PMCID: PMC8982365 DOI: 10.1039/d1ra09317g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/23/2022] [Indexed: 11/30/2022] Open
Abstract
Infections caused by multi-drug resistant microbes are a big challenge to the medical field and it necessitates the need for new biomedical agents that can act as potential candidates against these pathogens. Several polyindole based nanocomposites were found to exhibit the ability to release reactive oxygen species (ROS) and hence they show excellent antimicrobial properties. The features of polyindole can be fine-tuned to make them potential alternatives to antibiotics and antifungal medicines. This review clearly portrays the antimicrobial properties of polyindole based nanocomposites, reported so far for biomedical applications. This review will give a clear insight into the scope and possibilities for further research on the biomedical applications of polyindole based nanocomposites.
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Affiliation(s)
- Hareesh Pradeep
- Department of Chemistry, University of Calicut Kerala India-673635
| | - Bindu M
- Department of Environmental Studies, Kannur University Kerala India
| | - Shwetha Suresh
- Department of Environmental Studies, Kannur University Kerala India
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Rehman K, Ali I, El-Haj BM, Kanwal T, Maharjan R, Saifullah S, Imran M, Shafiullah, Usman Simjee S, Raza Shah M. Synthesis of novel biocompatible resorcinarene based nanosized dendrimer-vesicles for enhanced anti-bacterial potential of quercetin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116921] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Araújo Lima EMD, Holanda VN, Ratkovski GP, Silva WVD, Nascimento PHD, Figueiredo RCBQD, de Melo CP. A new biocompatible silver/polypyrrole composite with in vitro antitumor activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112314. [PMID: 34474865 DOI: 10.1016/j.msec.2021.112314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/30/2021] [Accepted: 07/07/2021] [Indexed: 12/01/2022]
Abstract
We used an in situ chemical oxidation method to prepare a new composite of silver nanoparticles (AgNPs) with polypyrrole (PPy), whose properties were optimized through a 23-factorial design of the synthesis conditions. The successful formation of the AgNPs/PPy composite was confirmed by UV-Visible and FTIR spectroscopies. Transmission electron microscopy revealed the presence of AgNPs smaller than 100 nm, dispersed into the PPy matrix. This hybrid composite exhibits a blue fluorescence emission after excitation in the ultraviolet region. In MTT assays, the AgNPs/PPy composite exhibited low cytotoxicity toward non-tumoral cell lines (fibroblast, Vero, and macrophages) and selectively inhibited the viability of HeLa cells. The AgNPs/PPy composite induces ultrastructural changes in HeLa cells that are consistent with the noticeable selectivity exhibited toward them when compared to its action against non-tumoral cell lineages. Also, the AgNPs/PPy exhibited a hemolytic activity below 14% for all blood groups tested, at concentrations up to 125 μg/mL. These results suggest that the AgNPs/PPy composite has a promising potential for use as an antitumoral agent.
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Affiliation(s)
- Elton Marlon de Araújo Lima
- Pós-graduação em Ciência de Materiais, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Vanderlan Nogueira Holanda
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, PE, Brazil; Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Gabriela Plautz Ratkovski
- Pós-graduação em Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Welson Vicente da Silva
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Pedro Henrique do Nascimento
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Regina Celia Bressan Queiroz de Figueiredo
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Celso Pinto de Melo
- Pós-graduação em Ciência de Materiais, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil.
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Mohamed F, Enaiet Allah A, Abu Al-Ola KA, Shaban M. Design and Characterization of a Novel ZnO-Ag/Polypyrrole Core-Shell Nanocomposite for Water Bioremediation. NANOMATERIALS 2021; 11:nano11071688. [PMID: 34203125 PMCID: PMC8308129 DOI: 10.3390/nano11071688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/17/2022]
Abstract
Incorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO–Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization of pyrrole in the presence of ZnO nanoparticles and AgNO3 as an oxidant. The antimicrobial behavior of the ZnO–Ag core combined with the electrical properties of the conducting PPy shell created a special ZnO–Ag/PPy nanocomposite with inherent adsorption behavior and antimicrobial properties. More impressively, the as-prepared ZnO–Ag/PPy displayed enhanced adsorption of Cd2+ and PO43− ions in the mixed solution. At pH 8, it had overall removal efficiencies of 95% and 75% for Cd2+and PO43− ions, respectively. The Freundlich adsorption model, rather than the Langmuir adsorption model, better fits the adsorption isotherm results. The adsorption kinetics also followed the pseudo-second-order kinetic model. Additionally, the engineered nanocomposite demonstrated antifungal activity against different fungi, as well as remarkable antibacterial activity against Gram-negative and Gram-positive bacteria. The synergistic combination of crystallinity, coherence of the ZnO–Ag core in the PPy matrix, and the negative zeta potential all contribute to this nanocomposite’s high efficiency. Our results have significant consequences in the wastewater bioremediation field using a simple operation process.
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Affiliation(s)
- Fatma Mohamed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt;
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Abeer Enaiet Allah
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Khulood A. Abu Al-Ola
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia;
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt;
- Department of Physics, Faculty of Science, Islamic University in Madinah, Al-Madinah Al-Munawarah 42351, Saudi Arabia
- Correspondence:
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Khan AU, Khan QU, Tahir K, Ullah S, Arooj A, Li B, Rehman KU, Nazir S, Khan MU, Ullah I. A Tagetes minuta based eco-benign synthesis of multifunctional Au/MgO nanocomposite with enhanced photocatalytic, antibacterial and DPPH scavenging activities. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112146. [PMID: 34082957 DOI: 10.1016/j.msec.2021.112146] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022]
Abstract
In this research work, facile, economical and eco-benign experimental procedure were adopted to synthesize Au/MgO nanocomposite with the help of Tagetes minuta leaves extract. Phytochemicals present in the leaves of Tagetes minuta were acting as reducing and stabilizing agents to avoid aggregation of nanomaterials during the preparation of Au/MgO nanocomposite. The biologically synthesized nanocomposite were systematically characterized by UV-vis spectroscopy, Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared microscopy (FTIR), High resolution transmission electron microscopy (HRTEM), Thermogravimetric analysis (TGA), dynamic light scattering (DLS) and elemental mapping. UV-visible spectrum confirmed the presence of MgO and Au due to the presence of two SPR peaks at 315 nm and 528 nm, respectively. Moreover, the Au/MgO nanocomposite exhibited superior photocatalytic, antibacterial, hemolytic, and antioxidant activities. Photocatalytic performance tests of Au/MgO nanocomposite were- appraised by the rapid degradation of the methylene blue (MB) under UV light illumination. More importantly, after four successive cycles of MB degradation, the photocatalytic efficacy remained unchanged, which ensures the stability of the Au/MgO nanocomposite. Furthermore, the antibacterial tests showed that the advanced nanocomposite inhibited the growth of Escherichia coli, Bacillus subtilis, and Staphylococcus aureus with zones of inhibition 18 (±0.3), 21 (±0.5), and 19 (±0.4) mm, respectively. The cytotoxicity study revealed that Au/MgO nanocomposite is nontoxic to ordinary healthy RBCs. Interestingly, the Au/MgO nanocomposite also possesses an excellent antioxidant activity, whereby effectively scavenging 82% stable and harmful DPPH. Overall, the present study concludes that eco-benign Au/MgO nanocomposite has excellent potential for the remediation of bacterial pathogens and degradation of MB.
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Affiliation(s)
- Afaq Ullah Khan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qudrat Ullah Khan
- Key Laboratory of Optoelectronic Devices and Systems, Ministry of Education and Guangdong Province, Collage of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan
| | - Sami Ullah
- Department of Chemistry, COMSATS University Islamabad (CUI), Abbottabad campus, 22060, Pakistan
| | - Aaranda Arooj
- Department of Chemistry, COMSATS University Islamabad (CUI), Abbottabad campus, 22060, Pakistan
| | - Baoshan Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Khalil Ur Rehman
- Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan
| | - Sadia Nazir
- Institute of Chemical Sciences, Gomal University, D.I. Khan, KP, Pakistan
| | - Mati Ullah Khan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Irfan Ullah
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Mehta R, Brahmbhatt H, Bhojani G, Bhattacharya A. Polypyrrole as the interlayer for thin‐film poly(piperazine‐amide) composite membranes: Separation behavior of salts and pesticides. J Appl Polym Sci 2021. [DOI: 10.1002/app.50356] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Romil Mehta
- Membrane Science and Separation Technology Division Council of Scientific and Industrial Research—Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar, Gujarat India
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research—Human Resource Development Centre Campus Ghaziabad Uttar Pradesh India
| | - Harshad Brahmbhatt
- Analytical and Environmental Science Division and Centralized Instrument Facility Council of Scientific and Industrial Research—Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar, Gujarat India
| | - Gopal Bhojani
- Membrane Science and Separation Technology Division Council of Scientific and Industrial Research—Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar, Gujarat India
| | - Amit Bhattacharya
- Membrane Science and Separation Technology Division Council of Scientific and Industrial Research—Central Salt and Marine Chemicals Research Institute (CSIR‐CSMCRI) Bhavnagar, Gujarat India
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research—Human Resource Development Centre Campus Ghaziabad Uttar Pradesh India
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Masri A, Abdelnasir S, Anwar A, Iqbal J, Numan A, Jagadish P, Shahabuddin S, Khalid M. Antimicrobial properties of multifunctional polypyrrole-cobalt oxide-silver nanocomposite against pathogenic bacteria and parasite. Appl Microbiol Biotechnol 2021; 105:3315-3325. [PMID: 33797573 DOI: 10.1007/s00253-021-11221-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/15/2021] [Accepted: 03/03/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Conducting polymer based nanocomposites are known to be effective against pathogens. Herein, we report the antimicrobial properties of multifunctional polypyrrole-cobalt oxide-silver nanocomposite (PPy-Co3O4-AgNPs) for the first time. Antibacterial activities were tested against multi-drug-resistant Gram-negative Escherichia coli (E. coli) and Gram-positive methicillin-resistant Staphylococcus aureus (MRSA) bacteria, while antiamoebic effects were assessed against opportunistic protist Acanthamoeba castellanii (A. castellanii). RESULTS The ternary nanocomposite containing conducting polymer polypyrrole, cobalt oxide, and silver nanoparticles showed potent antimicrobial effects against these pathogens. The antibacterial assay showed that PPy-Co3O4-AgNPs exhibited significant bactericidal activity against neuropathogenic E. coli K1 at only 8 μg/mL as compared to individual components of the nanocomposite, whereas a 70 % inhibition of A. castellanii viability was observed at 50 μg/mL. Moreover, PPy-Co3O4-AgNPs were found to have minimal cytotoxicity against human keratinocytes HaCaT cells in vitro even at higher concentration (50 μg/mL), and also reduced the microbes-mediated cytopathogenicity against host cells. CONCLUSION These results demonstrate that PPy-Co3O4-AgNPs hold promise in the development of novel antimicrobial nanomaterials for biomedical applications. KEY POINTS •Synthesis of polypyrrole-cobalt oxide-silver (PPy-Co3O4-AgNPs) nanocomposite. •Antimicrobial activity of nanocomposite. •PPy-Co3O4-AgNPs hold promise for biomedical applications.
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Affiliation(s)
- Abdulkader Masri
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Sumayah Abdelnasir
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Ayaz Anwar
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Subang Jaya, Selangor, Malaysia.
| | - Javed Iqbal
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Center of Nanotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Arshid Numan
- Graphene and Advanced 2D Materials Research Group, School of Engineering and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Priyanka Jagadish
- Graphene and Advanced 2D Materials Research Group, School of Engineering and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
| | - Syed Shahabuddin
- Department of Science, School of Technology, Pandit Deendayal Petroleum University, Knowledge Corridor, Gandhi Nagar, Gujarat, 382007, India
| | - Mohammad Khalid
- Graphene and Advanced 2D Materials Research Group, School of Engineering and Technology, Sunway University, 47500, Subang Jaya, Selangor, Malaysia
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19
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Chondath SK, Menamparambath MM. Interface-assisted synthesis: a gateway to effective nanostructure tuning of conducting polymers. NANOSCALE ADVANCES 2021; 3:918-941. [PMID: 36133281 PMCID: PMC9419666 DOI: 10.1039/d0na00940g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/08/2021] [Indexed: 06/15/2023]
Abstract
The interface-assisted polymerization technique can be viewed as a powerful emerging tool for the synthesis of conducting polymers (CPs) on a large scale. Contrary to other bulk or single-phase polymerization techniques, interface-assisted synthesis strategies offer effective nanostructure control in a confined two-dimensional (2-D) space. This review focuses on the types of interfaces, mechanism at the interface, advantages and future perspectives of the interfacial polymerization in comparison to conventional polymerization techniques. Hence, the primary focus is on briefing the different types of the chemical methods of polymerization, followed by uniqueness in the reaction dynamics of interface polymerization. The classification of interfaces into four types (liquid/solid, gas/liquid, liquid/liquid, and gas/solid) is based on the versatility and underlying mechanistic pathway of the polymerization of each type. The role of interface in tuning the nanostructure of CPs and the performance evaluation of pristine CPs based on the electrical conductivity are also discussed. Finally, the future outlook of this emerging field is discussed and proposed in detail through some multifunctional applications of synthesized conducting polymers.
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Affiliation(s)
- Subin Kaladi Chondath
- Department of Chemistry, National Institute of Technology Calicut Calicut 673601 Kerala India
| | - Mini Mol Menamparambath
- Department of Chemistry, National Institute of Technology Calicut Calicut 673601 Kerala India
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20
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González-Ballesteros N, Diego-González L, Lastra-Valdor M, Rodríguez-Argüelles MC, Grimaldi M, Cavazza A, Bigi F, Simón-Vázquez R. Immunostimulant and biocompatible gold and silver nanoparticles synthesized using the Ulva intestinalis L. aqueous extract. J Mater Chem B 2020; 7:4677-4691. [PMID: 31364682 DOI: 10.1039/c9tb00215d] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This is the first study to report on the biocompatible and immunogenic properties of one-pot synthesised gold and silver nanoparticles (Au@UI and Ag@UI) using the macroalgae Ulva intestinalis (UI). The UI aqueous extract, Au@UI, and Ag@UI were obtained under sterile conditions and fully characterized by UV-vis spectroscopy, TEM, HRTEM, STEM and FTIR spectroscopy. Moreover, for the first time, the composition of carbohydrates in the UI extract has been reported along with the changes observed after nanoparticle synthesis by size exclusion chromatography, in order to investigate their possible role in the biosynthetic process. This study suggested that the polysaccharide fraction of the extract is involved in the formation and stabilization of the nanoparticles. The potential toxicity of the samples was evaluated using different cell lines and the hemocompatibility was tested in mouse erythrocytes. In addition, ROS production, complement activation and cytokine release were evaluated to determine the immunogenicity. The results showed that Au@UI and Ag@UI exhibit good biocompatibility and hemocompatibility, with the exception of Ag@UI nanoparticles at high concentration, which were hemolytic. The samples induced ROS release and complement activation, two key mechanisms in innate immunity. The samples also induced the release of cytokines from Th1 and Th2 profiles, and other cytokines implicated in the activation of the immune system. Au@UI and Ag@UI were biocompatible and preserved the immunostimulant properties of the UI extract. Hence, Au@UI and Ag@UI could be useful as adjuvants in vaccine development and promote a balanced Th1 and Th2 immune response mediated by ROS production, cytokine release and complement activation.
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Affiliation(s)
- N González-Ballesteros
- Departamento de Química Inorgánica, Centro de Investigaciones Biomédicas (CINBIO), Universidade de Vigo, 36210 Vigo, Spain.
| | - L Diego-González
- Inmunología. Centro de Investigaciones Biomédicas (CINBIO), Instituto de Investigación Sanitaria Galicia Sur (IIS-GS), Universidade de Vigo, 36210 Vigo, Spain
| | - M Lastra-Valdor
- Estación de Ciencias Marinas de Toralla (ECIMAT), Universidade de Vigo, 36210 Vigo, Spain
| | - M C Rodríguez-Argüelles
- Departamento de Química Inorgánica, Centro de Investigaciones Biomédicas (CINBIO), Universidade de Vigo, 36210 Vigo, Spain.
| | - M Grimaldi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, 43124 Parma, Italy
| | - A Cavazza
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, 43124 Parma, Italy
| | - F Bigi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale (SCVSA), Università di Parma, 43124 Parma, Italy and IMEM-CNR Parma, 43124 Parma, Italy
| | - R Simón-Vázquez
- Inmunología. Centro de Investigaciones Biomédicas (CINBIO), Instituto de Investigación Sanitaria Galicia Sur (IIS-GS), Universidade de Vigo, 36210 Vigo, Spain
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21
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Maruthapandi M, Saravanan A, Luong JHT, Gedanken A. Antimicrobial Properties of Polyaniline and Polypyrrole Decorated with Zinc-Doped Copper Oxide Microparticles. Polymers (Basel) 2020; 12:polym12061286. [PMID: 32512800 PMCID: PMC7362252 DOI: 10.3390/polym12061286] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/29/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023] Open
Abstract
Polyaniline (PANI) and polypyrrole (PPY) were synthesized by carbon dots (CDs) under UV irradiation and then sonicated together with zinc acetate and copper acetate to form the PANI-Zn@CuO and PPY-Zn@Cu composites. The former consisted of agglomerated spherical particles with diameters of 1–5 µm, whereas the latter displayed irregular stick shapes with similar diameters. The bacterial potency of the composites against Escherichia coli and Staphylococcus aureus was enhanced remarkably with Zn doping in the CuO matrix, designated as Zn0.11Cu0.89O, at 0.144 mg/mL. The cell death was mainly attributed to the release of reactive oxygen species (ROS) that would severely damage DNA, proteins, and lipids. Bacteria could adhere to neutral surfaces of the composites by van der Waals attractive forces. The binding event disrupted the native surface charge of bacterial cells to induce cell lysis and result in eventual cell death.
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Affiliation(s)
- Moorthy Maruthapandi
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
| | - Arumugam Saravanan
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
| | - John H. T. Luong
- School of Chemistry, University College Cork, Cork T12 YN60, Ireland;
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel; (M.M.); (A.S.)
- Correspondence: ; Tel.: +972-3-5318315; Fax: +972-3-7384053
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Arroyo-Manzanares N, Peñalver-Soler R, Campillo N, Viñas P. Dispersive Solid-Phase Extraction using Magnetic Carbon Nanotube Composite for the Determination of Emergent Mycotoxins in Urine Samples. Toxins (Basel) 2020; 12:E51. [PMID: 31952350 PMCID: PMC7020456 DOI: 10.3390/toxins12010051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 12/17/2022] Open
Abstract
Dispersive magnetic solid-phase extraction (DMSPE) has received growing attention for sample treatment preconcentration prior to the separation of analytes due to its many advantages. In the present work, the potential of DMSPE for the determination of emergent mycotoxins (enniatins A, A1, B and B1, and beauvericin) is investigated for the first time. Different magnetic nanoparticles were tested and a magnetic multiwalled carbon nanotube (Fe3O4@MWCNT) composite was selected for the extraction and preconcentration of the five target mycotoxins in human urine samples before their analysis by ultrahigh performance liquid chromatography coupled to high resolution mass spectrometry (UHPLC-HRMS). The nanocomposite was characterized by energy dispersive X-ray spectrometry, scanning electron microscopy, Fourier transform infrared spectrophotometry, and X-ray diffraction. Several parameters affecting the adsorption and desorption of DMSPE steps were optimized and the method was fully validated. Due to a matrix effect, matrix-matched calibration curves were necessary to carry out quantification. In this way, limits of quantification of between 0.04 and 0.1 μg/L, relative standard deviation values lower than 12% and recoveries between 89.3% and 98.9% were obtained. Finally, a study of the reuse of the Fe3O4@MWCNT composite was carried out, confirming that it can be reused at least four times.
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Affiliation(s)
| | | | | | - Pilar Viñas
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, E-30100 Murcia, Spain; (N.A.-M.); (R.P.-S.); (N.C.)
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Devi R, Tapadia K, Maharana T. Casting of carbon cloth enrobed polypyrrole electrode for high electrochemical performances. Heliyon 2020; 6:e03122. [PMID: 31993515 PMCID: PMC6974773 DOI: 10.1016/j.heliyon.2019.e03122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/05/2019] [Accepted: 12/23/2019] [Indexed: 11/21/2022] Open
Abstract
The present investigation deals with the fabrication of a novel flexible and highly conductive PPy electrode. This was made by festooning PPy nanoparticles on carbon cloth (CC) by using chemical liquid process. The developed porous PPy@CC composite have good flexibility with low weight (1.1 mg) and high electrical conductivity (89 Ω-1cm-1). Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction spectroscopy (XRD) confirmed the formation of PPy on carbon cloth. Scanning electron micrographs (SEM) reveals that the PPy nanoparticles are encapsulated in carbon cloth. The fabricated carbon cloth has been used for solid-state symmetrical supercapacitors (SC) and low-cost material for electrode in potential energy storage devices. These film electrodes showed much superior electrochemical performance i.e. high stability under different current density, encouraging energy density, lower internal resistivity and higher specific capacitance. Synthesized flexible PPy@CC composite electrodes have brilliant applications in various kinds of electrochemical energy storage devices.
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Affiliation(s)
| | | | - Tungabidya Maharana
- Department of Chemistry, National Institute of Technology, Raipur, Chhattisgarh, India
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Silva Júnior FAGD, Vieira SA, Botton SDA, Costa MMD, Oliveira HPD. Antibacterial activity of polypyrrole-based nanocomposites: a mini-review. POLIMEROS 2020. [DOI: 10.1590/0104-1428.08020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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25
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Silver nanoparticles-embedded poly(1-naphthylamine) nanospheres for low-cost non-enzymatic electrochemical H2O2 sensor. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03053-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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26
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Noreen H, Iqbal J, Arshad A, Faryal R, Ata-ur-Rahman, Khattak R. Sunlight induced catalytic degradation of bromophenol blue and antibacterial performance of graphene nanoplatelets/polypyrrole nanocomposites. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Antibiofilm and antivirulence properties of chitosan-polypyrrole nanocomposites to Pseudomonas aeruginosa. Microb Pathog 2019; 128:363-373. [DOI: 10.1016/j.micpath.2019.01.033] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/12/2022]
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da Silva FAG, Alcaraz-Espinoza JJ, da Costa MM, de Oliveira HP. Low intensity electric field inactivation of Gram-positive and Gram-negative bacteria via metal-free polymeric composite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:827-837. [PMID: 30889757 DOI: 10.1016/j.msec.2019.02.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 02/01/2019] [Accepted: 02/10/2019] [Indexed: 12/30/2022]
Abstract
The adhesion of pathogenic bacteria in medical implants and surfaces is a health-related problem that requires strong inhibition against bacterial growth and attachment. In this work, we have explored the enhancement in the antibacterial activity of metal free-based composites under external electric field. It affects the oxidation degree of polypyrrole-based electrodes and consequently the antibacterial activity of the material. A conductive layer of carbon nanotubes (graphite) was deposited on porous substrate of polyurethane (sandpaper) and covered by polypyrrole, providing highly conductive electrodes characterized by intrinsic antibacterial activity and reinforced by electro-enhanced effect due to the external electric field. The bacterial inhibition of composites was monitored from counting of viable cells at different voltage/time of treatment and determination of biofilm inhibition on electrodes and reactors. The external voltage on electrodes reduces the threshold time for complete bacterial inactivation of PPy-based composites to values in order of 30 min for Staphylococcus aureus and 60 min for Escherichia coli.
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Affiliation(s)
- Fernando A G da Silva
- Institute of Materials Science, Federal University of Sao Francisco Valley, 48920-310 Juazeiro, BA, Brazil
| | | | - Mateus M da Costa
- Institute of Materials Science, Federal University of Sao Francisco Valley, 48920-310 Juazeiro, BA, Brazil
| | - Helinando P de Oliveira
- Institute of Materials Science, Federal University of Sao Francisco Valley, 48920-310 Juazeiro, BA, Brazil.
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Chondath SK, Poolakkandy RR, Kottayintavida R, Thekkangil A, Gopalan NK, Vasu ST, Athiyanathil S, Menamparambath MM. Water-Chloroform Interface Assisted Microstructure Tuning of Polypyrrole-Silver Sheets. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1723-1731. [PMID: 30592208 DOI: 10.1021/acsami.8b18943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The liquid-liquid interface of two immiscible solvents remarkably controls the morphology of polymeric nanostructures as compared to the polymerization in single solvent systems. The polymerization of pyrrole in the water-chloroform medium using silver nitrate (AgNO3) as oxidant yields polypyrrole/silver (PPy/Ag) sheets. The water-chloroform interface acts as a template for the growth of PPy/Ag hybrids into sheets by preventing the secondary growth of silver associated pyrrole oligomers in a three-dimensional (3-D) manner. On the contrary, the 3-D growth of pyrrole oligomers into spherical shapes at the water-chloroform interface is observed when ammonium persulfate (APS) is used as the oxidant. Transmission electron microscopic and scanning electron microscopic images reveal the sheetlike morphology of PPy/Ag with a relatively uniform distribution of Ag NPs (∼100 nm) on PPy sheets. The ratio of aqueous-organic bisolvent and the concentration/type of oxidant have a distinct effect on morphology, crystallinity, and electrical properties of PPy/Ag sheets. The dispersed PPy/Ag sheets are stable in moderately polar solvents up to 2 weeks. The electrochemical behavior of PPy/Ag sheets is confirmed by H2O2 sensing capability through cyclic voltammetry experiments. The antibacterial activity toward E. coli and S. aureus is quantitatively assessed using the minimum bactericidal concentration (MBC) determination.
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Affiliation(s)
| | | | - Roshima Kottayintavida
- Materials Science and Technology Division , CSIR-National Institute for Interdisciplinary Science and Technology (NIIST) , Thiruvananthapuram 695 019 , Kerala , India
| | | | - Nishanth Karimbintherikkal Gopalan
- Materials Science and Technology Division , CSIR-National Institute for Interdisciplinary Science and Technology (NIIST) , Thiruvananthapuram 695 019 , Kerala , India
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Auricularia auriculajudae polysaccharide-cisplatin complexes conjugated with folic acid as new tumor targeting agents. Int J Biol Macromol 2018; 120:966-974. [DOI: 10.1016/j.ijbiomac.2018.05.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/25/2018] [Accepted: 05/10/2018] [Indexed: 12/21/2022]
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Karthik K, Dhanuskodi S, Gobinath C, Prabukumar S, Sivaramakrishnan S. Fabrication of MgO nanostructures and its efficient photocatalytic, antibacterial and anticancer performance. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 190:8-20. [PMID: 30453162 DOI: 10.1016/j.jphotobiol.2018.11.001] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/02/2018] [Accepted: 11/01/2018] [Indexed: 10/27/2022]
Abstract
Magnesium oxide (MgO) nanostructures were prepared using microwave-assisted (M 1) and hydrothermal (M 2) methods and characterized by XRD, SEM and FT-IR. It exhibits cubic structure with an average crystallite size of 20 nm (M 1) and 14 nm (M 2) and the lattice strain (WH plot) is 0.0017 (M 1), 0.0037 (M 2). It's spherical and rods like structures are confirmed through SEM and TEM. The vibrational stretching mode of MgO is 439 (M 1) and 449 cm-1 (M 2). The optical bandgap is estimated as 5.93 eV (M 1) and 5.85 eV (M 2) through UV-Vis spectra. The fluorescence spectrum shows emission peaks at 414 and 437 (M 1) and 367 and 385 nm (M 2). The photodegradation studies of MgO nanostructures were assessed by monitoring the decolorization of methylene blue and Congo red dyes in aqueous solution under sunlight irradiation. The antibacterial activities of M 1 and M 2 are investigated against the gram-negative (Escherichia coli, Shigella flexneri, Salmonella typhi, Proteus mirabilis, Aeromonas hydrophila and Vibrio cholera) and gram-positive (Bacillus subtilis and Rhodococcus rhodochrous) bacteria. The zone of inhibition of 24 (M 1) and 25 mm (M 2) indicates high antibacterial activity towards the gram negative bacterium A. hydrophila. Confocal laser scanning microscopic (CLSM) analysis was utilized for understanding the variation in antibacterial activity between different orientations of MgO nanostructures. The cytotoxicity assay confirmed that the prepared nanostructures are non - toxic to normal healthy RBC's. In-vitro anticancer efficiency (IC50) of MgO nanostructures against human lung cancer cell line (A549) was investigated.
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Affiliation(s)
- K Karthik
- School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - S Dhanuskodi
- School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India.
| | - C Gobinath
- Academic Body of Agriculture and Food Biotechnology, Universidad Autonoma del Estado de Hidalgo Tulancingo, Hidalgo, CP 43600, Mexico
| | - S Prabukumar
- Department of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappali 620 024, Tamilnadu, India
| | - S Sivaramakrishnan
- Department of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappali 620 024, Tamilnadu, India
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Pharmaceutical Potential of a Novel Chitosan Derivative Schiff Base with Special Reference to Antibacterial, Anti-Biofilm, Antioxidant, Anti-Inflammatory, Hemocompatibility and Cytotoxic Activities. Pharm Res 2018; 36:5. [PMID: 30406460 DOI: 10.1007/s11095-018-2535-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 10/26/2018] [Indexed: 12/18/2022]
Abstract
PURPOSE Chitosan and its derivatives possess several unique properties relevant in the field of pharmaceutics and medicinal chemistry. This study aimed to evaluate the pharmaceutical performance of an innovative chitosan derivative, methyl acrylate chitosan bearing p-nitrobenzaldehyde (MA*CS*pNBA) Schiff base. METHODS The antibacterial activity of MA*CS*pNBA was tested against multi-drug resistant (MDR) Gram-negative and Gram-positive bacteria using agar-well diffusion method. Anti-biofilm formation was analyzed using a microtitre plate. Antioxidant assays were performed to assess the scavenging activity of MA*CS*pNBA using DPPH, hydrogen peroxide, superoxide together with its reducing power activity. Anti-inflammatory activity was evaluated by albumin denaturation, membrane stabilization, and proteinase inhibition methods. MA*CS*pNBA was tested for its hemolytic efficiency on human erythrocytes. Cytotoxicity of MA*CS*pNBA was evaluated by MTT assay. RESULTS MA*CS*pNBA showed a significant performance as an antibacterial candidate against MDR bacteria, anti-biofilm, antioxidant and anti-inflammatory biomaterial, evidencing hemocompatibility and no cytotoxicity. It exhibited a significant negative correlation with biofilm formation by the MDR-PA-09 strain. Biological activities were found to be significantly concentration-dependent. CONCLUSIONS the newly chitosan derivative MA*CS*pNBA showed to be promising for pharmaceutical applications, expanding the treatment ways toward skin burn infections since it allied excellent antibacterial, anti-biofilm, antioxidant, anti-inflammatory, hemocompatibility and absence of cytotoxic activities.
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Ashmore D, Chaudhari A, Barlow B, Barlow B, Harper T, Vig K, Miller M, Singh S, Nelson E, Pillai S. Evaluation of E. coli inhibition by plain and polymer-coated silver nanoparticles. Rev Inst Med Trop Sao Paulo 2018; 60:e18. [PMID: 29694600 PMCID: PMC5956551 DOI: 10.1590/s1678-9946201860018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 02/15/2018] [Indexed: 11/22/2022] Open
Abstract
Escherichia coli causes various ailments such as septicemia, enteritis, foodborne illnesses, and urinary tract infections which are of concern in the public health field due to antibiotic resistance. Silver nanoparticles (AgNP) are known for their biocompatibility and antibacterial activity, and may prove to be an alternative method of treatment, especially as wound dressings. In this study, we compared the antibacterial efficacy of two polymer-coated silver nanoparticles either containing 10% Ag (Ag 10% + Polymer), or 99% Ag (AgPVP) in relation to plain uncoated silver nanoparticles (AgNP). Atomic force microscopy was used to characterize the nanoparticles, and their antibacterial efficacy was compared by the minimum inhibitory concentration (MIC) and bacterial growth curve assays, followed by molecular studies using scanning electron microscopy (SEM) and (qRT- PCR). AgNP inhibited the growth of E. coli only at 0.621 mg/mL, which was double the concentration required for both coated nanoparticles (0.312 mg/mL). Similarly, bacterial growth was impeded as early as 8 h at 0.156 mg/mL of both coated nanoparticles as compared to 0.312 mg/mL for plain AgNP. SEM data showed that nanoparticles damaged the cell membrane, resulting in bacterial cell lysis, expulsion of cellular contents, and complete disintegration of some cells. The expression of genes associated with the TCA cycle (aceF and frdB) and amino acid metabolism (gadB, metL, argC) were substantially downregulated in E. coli treated with nanoparticles. The reduction in the silver ion (Ag+) concentration of polymer-coated AgNP did not affect their antibacterial efficacy against E. coli.
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Affiliation(s)
- D'Andrea Ashmore
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | | | - Brandi Barlow
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | - Brett Barlow
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | - Talia Harper
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | - Komal Vig
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | - Michael Miller
- AU Research Instrumentation Facility, Harrison School of Pharmacy, Auburn University, Auburn, Alabama, USA
| | - Shree Singh
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
| | | | - Shreekumar Pillai
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, Alabama, USA
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Abd El-Salam HM, Mohamed RA, Shokry A. Facile polyacrylamide graft based on poly (2-chloroaniline) silver nano-composites as antimicrobial. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1443933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- H. M. Abd El-Salam
- Faculty of Science, Polymer Research Laboratory, Department of Chemistry, Beni-Suef University, Beni-Suef City, Egypt
| | - Reham A. Mohamed
- Faculty of Science, Polymer Research Laboratory, Department of Chemistry, Beni-Suef University, Beni-Suef City, Egypt
| | - Asmaa Shokry
- Faculty of Science, Polymer Research Laboratory, Department of Chemistry, Beni-Suef University, Beni-Suef City, Egypt
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37
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Qian H, Li M, Li Z, Lou Y, Huang L, Zhang D, Xu D, Du C, Lu L, Gao J. Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:566-577. [DOI: 10.1016/j.msec.2017.07.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/03/2017] [Accepted: 07/03/2017] [Indexed: 10/19/2022]
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38
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Pandey AK, Pandey PC, Agrawal NR, Das I. Synthesis and characterization of dendritic polypyrrole silver nanocomposite and its application as a new urea biosensor. J Appl Polym Sci 2017. [DOI: 10.1002/app.45705] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Avinash Kumar Pandey
- Chemistry Department; DDU Gorakhpur University; Gorakhpur 273009 Uttar Pradesh India
| | - Prem Chandra Pandey
- Chemistry Department; IIT Banaras Hindu University; Varanasi 221005 Uttar Pradesh India
| | - Namita Rani Agrawal
- Chemistry Department; St. Andrew's College; Gorakhpur 273001 Uttar Pradesh India
| | - Ishwar Das
- Chemistry Department; DDU Gorakhpur University; Gorakhpur 273009 Uttar Pradesh India
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Abd El-Salam HM, Azzam EMS, Aboad RS. Synthesis and characterization of poly(2-aminothiophenol-co-2-methylaniline)/silver nanoparticles as antisulfate-reducing bacteria. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1354196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- H. M. Abd El-Salam
- Department of Chemistry, Faculty of Science, Polymer Research Laboratory, Beni-Suef University, 62514 Beni-Suef City, Egypt
| | - E. M. S. Azzam
- Applied Surfactants Laboratory, Petrochemicals Department, Egyptian Petroleum Research Institute, Elzhoor, Nasr City, Cairo, Egypt
| | - R. S. Aboad
- Department of Chemistry, Faculty of Science, Polymer Research Laboratory, Beni-Suef University, 62514 Beni-Suef City, Egypt
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40
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Khan ZUH, Khan A, Chen Y, Shah NS, Muhammad N, Khan AU, Tahir K, Khan FU, Murtaza B, Hassan SU, Qaisrani SA, Wan P. Biomedical applications of green synthesized Nobel metal nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:150-164. [DOI: 10.1016/j.jphotobiol.2017.05.034] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/23/2017] [Accepted: 05/23/2017] [Indexed: 11/26/2022]
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Abstract
Nanotoxicity of nanomaterials is an important issue in view of their potential applications in systemic circulation and wound healing dressing. This account specifically deals with several characteristic features of different nanomaterials which induce hemolysis and how to make them hemocompatible. The shape, size, and surface functionalities of naked metallic as well as nonmetallic nanoparticles surfaces are responsible for the hemolysis. An appropriate coating of biocompatible molecules dramatically reduces hemolysis and promotes their ability as safe drug delivery vehicles. The use of coated nanomaterials in wound healing dressing opens several new strategies for rapid wound healing processes. Properly designed nanomaterials should be selected to minimize the nanotoxicity in the wound healing process. Future directions need new synthetic methods for engineered nanomaterials for their best use in nanomedicine and nanobiotechnology.
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Affiliation(s)
- Mandeep Singh Bakshi
- Department of Natural and Applied Sciences, University of Wisconsin-Green Bay , 2420 Nicolet Drive, Green Bay, Wisconsin 54311-7001, United States
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42
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Salam MA, Obaid AY, El-Shishtawy R, Mohamed SA. Synthesis of nanocomposites of polypyrrole/carbon nanotubes/silver nano particles and their application in water disinfection. RSC Adv 2017. [DOI: 10.1039/c7ra01033h] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Contamination of drinking or irrigation water with pathogenic bacteria, such as Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), is a major global health problem.
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Affiliation(s)
- Mohamed Abdel Salam
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Abdullah Y. Obaid
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Reda M. El-Shishtawy
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Saleh A. Mohamed
- Biochemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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Hybrid chitosan/polyaniline-polypyrrole biomaterial for enhanced adsorption and antimicrobial activity. J Colloid Interface Sci 2016; 490:488-496. [PMID: 27918986 DOI: 10.1016/j.jcis.2016.11.082] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/20/2016] [Accepted: 11/23/2016] [Indexed: 02/03/2023]
Abstract
In this work, chitosan (CS) functionalized polyaniline-polypyrrole (Pani-Ppy) copolymer (CS/Pani-Ppy) was synthesized applying a facile one pot method for the enhanced adsorption of Zn(II) and antimicrobial activity for E. coli and E. agglomerans. The synthesized materials were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform inferred spectroscopy and X-ray photoelectron spectroscopy. The adsorption of the Zn(II) on the synthesized materials was highly dependent on the pH of the solution, the initial metal ion concentration, and temperature. The adsorption of Zn(II) on the studied materials was as follows: CS/Pani-Ppy>Pani-Ppy>Ppy>Pani>CS. The results reveal that adsorption of Zn(II) follows the Langmuir adsorption isotherm, and that chemisorption occurs through pendant and bridging interactions, with active adsorbent sites. Thermodynamic results show the adsorption is spontaneous and exothermic in nature. The synthesized materials show excellent antimicrobial activity against E. coli and E. agglomerans bacterial organisms, and an approximately 100% decline in the viability of both strains was observed with CS/Pani-Ppy and Pani-Ppy. The order of antimicrobial activity for the synthesized materials was as follows: CS/Ppy-Pani>Ppy-Pani>Ppy>Pani>CS. The results show that the greater activity of CS/Ppy-Pani resulted from the electrostatic interaction between positively charged amine groups and negatively charged bacteria.
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44
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Fragal VH, Cellet TS, Pereira GM, Fragal EH, Costa MA, Nakamura CV, Asefa T, Rubira AF, Silva R. Covalently-layers of PVA and PAA and in situ formed Ag nanoparticles as versatile antimicrobial surfaces. Int J Biol Macromol 2016; 91:329-37. [DOI: 10.1016/j.ijbiomac.2016.05.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/08/2016] [Accepted: 05/14/2016] [Indexed: 11/29/2022]
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45
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Tenório-Neto ET, Baraket A, Kabbaj D, Zine N, Errachid A, Fessi H, Kunita MH, Elaissari A. Submicron magnetic core conducting polypyrrole polymer shell: Preparation and characterization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:688-94. [DOI: 10.1016/j.msec.2015.12.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 12/14/2015] [Accepted: 12/23/2015] [Indexed: 01/21/2023]
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46
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da Silva FAG, Queiroz JC, Macedo ER, Fernandes AWC, Freire NB, da Costa MM, de Oliveira HP. Antibacterial behavior of polypyrrole: The influence of morphology and additives incorporation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:317-22. [PMID: 26952429 DOI: 10.1016/j.msec.2016.01.067] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/12/2016] [Accepted: 01/26/2016] [Indexed: 11/26/2022]
Abstract
The antibacterial behavior of polypyrrole (PPy) depends on a diversity of structural parameters such as surface area, aggregation level and additives (metal nanoparticles) incorporation. This paper summarizes the influence of different preparation procedures of PPy on action of resulting antibacterial composite against Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae. The bactericidal action has been assigned to morphology (size of polypyrrole nanoparticles). The electrostatic interaction established between polymer nanoparticles and bacteria provokes the bacterial cell death and returns advantages in comparison with conventional composites of polypyrrole decorated with metal nanoparticles.
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Affiliation(s)
- Fernando A G da Silva
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil
| | - Jefferson C Queiroz
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil
| | - Ericleiton R Macedo
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil; Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano, Petrolina, 56302-320, Pernambuco, Brazil
| | - Antonio W C Fernandes
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil
| | - Naiana B Freire
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil
| | - Mateus M da Costa
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil
| | - Helinando P de Oliveira
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300 Juazeiro, Bahia, Brazil.
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Stejskal J, Trchová M, Bober P, Morávková Z, Kopecký D, Vrňata M, Prokeš J, Varga M, Watzlová E. Polypyrrole salts and bases: superior conductivity of nanotubes and their stability towards the loss of conductivity by deprotonation. RSC Adv 2016. [DOI: 10.1039/c6ra19461c] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Polypyrrole nanotubes exhibit conductivity of tens S cm−1 which is one of the highest among the current conducting polymers.
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Affiliation(s)
- Jaroslav Stejskal
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague 6
- Czech Republic
| | - Miroslava Trchová
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague 6
- Czech Republic
| | - Patrycja Bober
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague 6
- Czech Republic
| | - Zuzana Morávková
- Institute of Macromolecular Chemistry
- Academy of Sciences of the Czech Republic
- 162 06 Prague 6
- Czech Republic
| | - Dušan Kopecký
- Faculty of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Martin Vrňata
- Faculty of Chemical Engineering
- University of Chemistry and Technology
- 166 28 Prague 6
- Czech Republic
| | - Jan Prokeš
- Charles University in Prague
- Faculty of Mathematics and Physics
- 180 00 Prague 8
- Czech Republic
| | - Martin Varga
- Charles University in Prague
- Faculty of Mathematics and Physics
- 180 00 Prague 8
- Czech Republic
| | - Elizaveta Watzlová
- Charles University in Prague
- Faculty of Mathematics and Physics
- 180 00 Prague 8
- Czech Republic
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Li W, Zeng X, Wang H, Wang Q, Yang Y. PVA-reinforced glutathione–Ag hydrogels and release of Ag nanoparticles and drugs by UV-triggered controllable disassembly. NEW J CHEM 2016. [DOI: 10.1039/c5nj03430b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Macromolecular chains of PVA efficiently supported the three-dimensional network structure of GSH–Ag gels, remarkably improving their thermal stability and mechanical strength and the controllable release of Ag NPs and drugs through UV-triggered gradual disassembly of GSH–Ag.
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Affiliation(s)
- Wan Li
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Xiaoping Zeng
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Hong Wang
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Qin Wang
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Yajiang Yang
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- China
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Khan AU, Yuan Q, Wei Y, Khan SU, Tahir K, Khan ZUH, Ahmad A, Ali F, Ali S, Nazir S. Longan fruit juice mediated synthesis of uniformly dispersed spherical AuNPs: cytotoxicity against human breast cancer cell line MCF-7, antioxidant and fluorescent properties. RSC Adv 2016. [DOI: 10.1039/c5ra27100b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present work AuNPs were synthesized by an eco-friendly, fast, one-pot and green synthetic route using Longan fruit juice as a reducing, capping and stabilizing agent.
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Affiliation(s)
- Arif Ullah Khan
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | | | - Kamran Tahir
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | - Zia Ul Haq Khan
- Department of Chemistry
- University of Science and Technology Bannu
- Pakistan
| | - Aftab Ahmad
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | - Farman Ali
- Department of Chemistry
- Shaheed Benazir Bhutto University
- Dir 18000
- Pakistan
| | - Shafqat Ali
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
| | - Sadia Nazir
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- PR China
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