1
|
Zhang Y, Larionov KS, Zhang S, Sobolev NA, Konstantinov AI, Volkov DS, Suslova EV, Chernov VE, Poloskov AI, Glushakov RI, Perminova IV. Humic Polyelectrolytes Facilitate Rapid Microwave Synthesis of Silver Nanoparticles Suitable for Wound-Healing Applications. Polymers (Basel) 2024; 16:587. [PMID: 38475271 DOI: 10.3390/polym16050587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
This article describes the one-pot microwave synthesis of silver nanoparticles (AgNPs) assisted with natural polyelectrolytes-humic substances (HS). The humic polyelectrolytes served both as chemical reductants for silver ions and as end-capping agents for AgNPs. Three commercially available sodium humates extracted from lignites and leonardite and one sodium fulvate isolated from natural brown water seeped through peat deposits were used in this study. The dynamics of the growth rate of AgNPs was characterised by UV-VIS spectroscopy by measuring the intensity of surface plasmon resonance at 420 nm. Transmission electron microscopy was used to characterise the size and morphology of AgNPs. Dynamic light scattering was used to determine size distributions of the synthesised AgNPs in the solutions. It was established that both conventional and microwave syntheses assisted with the coal humates produced small-size AgNPs in the range from 4 to 14 nm, with the maximum share of particles with sizes of (6 ± 2) nm by TEM estimates. The peat fulvate yielded much larger NPs with sizes from 10 to 50 nm by TEM estimates. DLS measurements revealed multimodal distributions of AgNPs stabilised with HS, which included both single NPs with the sizes from 5 to 15 nm, as well as their dominating aggregates with sizes from 20 to 200 nm and a smaller portion of extra-large aggregates up to 1000 nm. The given aggregates were loosely bound by humic polyelectrolyte, which prevented the coalescence of AgNPs into larger particles, as can be seen in the TEM images. The significant acceleration in the reaction time-a factor of 60 to 70-was achieved with the use of MW irradiation: from 240 min down to 210-240 s. The coal humate stabilised AgNPs showed antimicrobial properties in relation to S. aureus. A conclusion was made regarding the substantial advantages of microwave synthesis in the context of time and scaling up for the large-scale production of AgNP-HS preparations with antimicrobial properties suitable for external wound-healing applications.
Collapse
Affiliation(s)
- Yu Zhang
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Konstantin S Larionov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Simeng Zhang
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Nikita A Sobolev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Andrey I Konstantinov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Dmitry S Volkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Evgeniya V Suslova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Vladimir E Chernov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Anton I Poloskov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Ruslan I Glushakov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Irina V Perminova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| |
Collapse
|
2
|
Moorthy H, Datta LP, Samanta S, Govindaraju T. Multifunctional Architectures of Cyclic Dipeptide Copolymers and Composites, and Modulation of Multifaceted Amyloid-β Toxicity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:56535-56547. [PMID: 36516435 DOI: 10.1021/acsami.2c16336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Alzheimer's disease (AD) is a major neurodegenerative disorder primarily characterized by the β-amyloid (Aβ42) misfolding and aggregation-associated multifaceted amyloid toxicity encompassing oxidative stress, neuronal death, and severe cognitive impairment. Modulation of Aβ42 aggregation via various structurally anisotropic macromolecular systems is considered effective in protecting neuronal cells. In this regard, we have developed a cyclic dipeptide (CDP)-based copolymer (CP) and explored its material and biomedical properties. Owing to the structural versatility, CDP-CP forms solvent-dependent anisotropic architectures ranging from dense fibers and mesosheets to vesicles, which are shown to interact with dyes and nanoparticles and mimic synthetic protocells, providing a conceptually new approach to achieve advanced functional materials with the hierarchical organization. CP upon interaction with gold nanoparticles (GNP) and polyoxometalate (POM) generated faceted architectures (CP-GNP) and the nanocomposite (CP-POM), respectively. CP-GNP and CP-POM have shown remarkable ability to inhibit Aβ42 aggregation, dissolve the preformed aggregates, and scavenge reactive oxygen species (ROS) to ameliorate multifaceted amyloid toxicity. In cellulo studies show that CP-GNP and CP-POM protect neuronal cells from Aβ42-induced toxicity and reduce lipopolysaccharide (LPS)-activated neuroinflammation at sub-micromolar concentration. To our knowledge, this is the first report on the hierarchical organization of CDP-CP into 1D-to-2D architectures and their organic-inorganic hybrid nanocomposites to combat the multifaceted amyloid toxicity.
Collapse
Affiliation(s)
- Hariharan Moorthy
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - Lakshmi Priya Datta
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - Sourav Samanta
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and the School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India
| |
Collapse
|
3
|
Identifying high performance photosensitizer with simultaneous enhancement in fluorescence and singlet oxygen generation, from ‘(Ag/Au)-aggregation-induced emission-active fluorogen’ theranostic nanoparticles. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
4
|
Ortiz-Castillo JE, Gallo-Villanueva RC, Madou MJ, Perez-Gonzalez VH. Anisotropic gold nanoparticles: A survey of recent synthetic methodologies. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213489] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
5
|
Ghosh M, Jain K, Khan S, Das K, Ghorai TK. New Dual-Functional and Reusable Bimetallic Y 2ZnO 4 Nanocatalyst for Organic Transformation under Microwave/Green Conditions. ACS OMEGA 2020; 5:4973-4981. [PMID: 32201783 PMCID: PMC7081418 DOI: 10.1021/acsomega.9b03875] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
A novel bimetallic and reusable Y2ZnO4 nanocatalyst was synthesized by a simple coprecipitation method. The prepared nanocatalyst exhibited dual catalytic activity and was characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The average crystallite and grain sizes were found to be 17 ± 1 and 10 ± 2 nm, respectively. On the one hand, the catalytic activity of the nanocatalyst was studied for the Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds, such as ethyl cyanoacetate and malononitrile, under microwave irradiation and solvent-free conditions. On the other hand, the nanoparticles also showed faster photocatalytic activity against methyl orange (MO) compared to other dyes. The nanocatalyst was easily recoverable by a simple filtration method and was recycled without any significant loss of catalytic activity. The advantages of this nanocatalyst were a simple workup procedure, high reaction yields, solvent-free conditions, reusability, and a short reaction time under green reaction conditions.
Collapse
Affiliation(s)
- Mithun
Kumar Ghosh
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
| | - Kavita Jain
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Siddique Khan
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Kalpataru Das
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Tanmay Kumar Ghorai
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
| |
Collapse
|
6
|
Praneeth NVS, Paria S. Clay-supported anisotropic Au-modified N,S-doped TiO 2 nanoparticles for enhanced photocatalytic dye degradation and esterification reactions. NEW J CHEM 2020. [DOI: 10.1039/c9nj05306a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Kaolinite clay supported doped TiO2 and anisotropic gold deposited visible light induced plasmonic nanocatalysts for dye degradation and esterification reactions.
Collapse
Affiliation(s)
- Neeli Venkat Sai Praneeth
- Interfaces and Nanomaterials Laboratory
- Department of Chemical Engineering
- National Institute of Technology
- Rourkela 769008
- India
| | - Santanu Paria
- Interfaces and Nanomaterials Laboratory
- Department of Chemical Engineering
- National Institute of Technology
- Rourkela 769008
- India
| |
Collapse
|
7
|
Nehra K, Pandian SK, Bharati MSS, Soma VR. Enhanced catalytic and SERS performance of shape/size controlled anisotropic gold nanostructures. NEW J CHEM 2019. [DOI: 10.1039/c8nj06206d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Au nanostars of different sizes and shapes prepared using a simple method and their applications.
Collapse
Affiliation(s)
- Kamalesh Nehra
- Department of Physics and Astrophysics, University of Delhi
- Delhi 110007
- India
| | | | - Moram Sree Satya Bharati
- Advanced Centre for Research in High Energy Materials (ACRHEM), University of Hyderabad
- Hyderabad 500046
- India
| | - Venugopal Rao Soma
- Advanced Centre for Research in High Energy Materials (ACRHEM), University of Hyderabad
- Hyderabad 500046
- India
| |
Collapse
|