1
|
San José L, Yuriychuk N, García O, López-González M, Quijada-Garrido I. Exploring Functional Polymers in the Synthesis of Luminescent ZnO Quantum Dots for the Detection of Cr 6+, Fe 2+, and Cu 2. Polymers (Basel) 2024; 16:429. [PMID: 38337319 DOI: 10.3390/polym16030429] [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: 01/16/2024] [Revised: 01/25/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
The main aim of this work is to demonstrate that well-defined methacrylate-based copolymers with oligoethylene glycol side chains and functional groups such as thiol and glycidyl, obtained by photo-initiated reversible addition-fragmentation chain transfer (RAFT) in ethanol, are highly suitable as templates in the synthesis and protection of ZnO quantum dots (ZnO QDs) with remarkable photoluminescent properties. While the affinity of thiol groups to metallic surfaces is well established, their interaction with metal oxides has received less scrutiny. Furthermore, under basic conditions, glycidyl groups could react with hydroxyl groups on the surface of ZnO, representing another strategy for hybrid synthesis. The size and crystalline morphology of the resulting hybrids were assessed using DLS, TEM, and XRD, indicating that both polymers, even with a low proportion of functional groups (5% mol) are appropriate as templates and ligands for ZnO QDs synthesis. Notably, thiol-containing polymers yield hybrids with ZnO featuring excellent quantum yield (up to 52%), while polymers with glycidyl groups require combination with the organosilane aminopropyl triethoxysilane (APTES) to achieve optimal results. In both cases, these hybrids exhibited robust stability in both ethanol and aqueous environments. Beyond fundamental research, due to the remarkable photoluminescent properties and affordability, these hybrid ZnO QDs are expected to have potential applications in biotechnology and green science; in particular, in this study, we examined their use in the detection of environmental contaminants like Fe2+, Cr6+, and Cu2+. Specifically, the limit of detection achieved at 1.13 µM for the highly toxic Cr6+ underscores the significant sensing capabilities of the hybrids.
Collapse
Affiliation(s)
- Leire San José
- Group of Nanohybrids and Interactive Polymers, Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Nastasiya Yuriychuk
- Group of Nanohybrids and Interactive Polymers, Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Olga García
- Group of Nanohybrids and Interactive Polymers, Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Mar López-González
- Group of Nanohybrids and Interactive Polymers, Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Isabel Quijada-Garrido
- Group of Nanohybrids and Interactive Polymers, Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), C/Juan de la Cierva, 3, 28006 Madrid, Spain
| |
Collapse
|
2
|
Beytür S, Essiz S, Özuğur Uysal B. Investigation of Structural and Antibacterial Properties of WS 2-Doped ZnO Nanoparticles. ACS OMEGA 2024; 9:4037-4049. [PMID: 38284036 PMCID: PMC10809239 DOI: 10.1021/acsomega.3c09041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 11/28/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
ZnO nanoparticles, well-known for their structural, optical, and antibacterial properties, are widely applied in diverse fields. The doping of different materials to ZnO, such as metals or metal oxides, is known to ameliorate its properties. Here, nanofilms composed of ZnO doped with WS2 at 5, 15, and 25% ratios are synthesized, and their properties are investigated. Supported by molecular docking analyses, the enhancement of the bactericidal properties after the addition of WS2 at different ratios is highlighted and supported by the inhibitory interaction of residues playing a crucial role in the bacterial survival through the targeting of proteins of interest.
Collapse
Affiliation(s)
- Sercan Beytür
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
| | - Sebnem Essiz
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
| | - Bengü Özuğur Uysal
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
| |
Collapse
|
3
|
Mohammed YHI, Alghamdi S, Jabbar B, Marghani D, Beigh S, Abouzied AS, Khalifa NE, Khojali WMA, Huwaimel B, Alkhalifah DH, Hozzein WN. Green Synthesis of Zinc Oxide Nanoparticles Using Cymbopogon citratus Extract and Its Antibacterial Activity. ACS OMEGA 2023; 8:32027-32042. [PMID: 37692252 PMCID: PMC10483526 DOI: 10.1021/acsomega.3c03908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 07/11/2023] [Indexed: 09/12/2023]
Abstract
Excessive use of antimicrobial medications including antibiotics has led to the emerging menace of antimicrobial resistance, which, as per the World Health Organization (WHO), is among the top ten public health threats facing humanity, globally. This necessitates that innovative technologies be sought that can aid in the elimination of pathogens and hamper the spread of infections. Zinc oxide (ZnO) has multifunctionality owing to its extraordinary physico-chemical properties and functionality in a range of applications. In this research, ZnO nanoparticles (NPs) were synthesized from zinc nitrate hexahydrate, by a green synthesis approach using Cymbopogon citratus extract followed by characterization of the NPs. The obtained X-ray diffraction peaks of ZnO NPs matched with the standard JCPDS card (no. 89-510). The particles had a size of 20-24 nm, a wurtzite structure with a high crystallinity, and hexagonal rod-like shape. UV-Vis spectroscopy revealed absorption peaks between 369 and 374 nm of ZnO NPs synthesized from C. citratus extract confirming the formation of ZnO. Fourier transform infrared confirmed the ZnO NPs as strong absorption bands were observed in the range of 381-403 cm-1 corresponding to Zn-O bond stretching. Negative values of the highest occupied molecular orbital-lowest unoccupied molecular orbital for ZnO NPs indicated the good potential to form a stable ligand-protein complex. Docking results indicated favorable binding interaction between ZnO and DNA gyrase subunit b with a binding energy of -2.93 kcal/mol. ZnO NPs at various concentrations inhibited the growth of Escherichia coli and Staphylococcus aureus. Minimum inhibitory concentration values of ZnO NPs against E. coli and S. aureus were found to be 92.07 ± 0.13 and 88.13 ± 0.35 μg/mL, respectively, at a concentration of 2 mg/mL. AO/EB staining and fluorescence microscopy revealed the ability of ZnO NPs to kill E. coli and S. aureus cells. Through the findings of this study, it has been shown that C. citratus extract can be used in a green synthesis approach to generate ZnO NPs, which can be employed as alternatives to antibiotics and a tool to eliminate drug-resistant microbes in the future.
Collapse
Affiliation(s)
- Yasser Hussein Issa Mohammed
- Department
of Biochemistry, Faculty of Applied Science, University of Hajjah, Hajjah, Yemen
- Department
of Pharmacy, Faculty of Medicine and Medical Science, University of Al-Razi, Al-Razi, Yemen
| | - Saad Alghamdi
- Laboratory
Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 21421, Saudi Arabia
| | - Basit Jabbar
- Centre
of Excellence in Molecular Biology, University
of the Punjab, Lahore 53700, Pakistan
| | - Dina Marghani
- Clinical
Laboratory Science Department, Faculty of Applied Medical Science, Taibah University, Madina 344, Saudi Arabia
| | - Saba Beigh
- Department
of Public Health, Faculty of Applied Medical Sciences, Al-baha University, Al-baha 65431, Saudi Arabia
| | - Amr S. Abouzied
- Department
of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
- Department
of Pharmaceutical Chemistry, National Organization
for Drug Control and Research (NODCAR), Giza 12553, Egypt
| | - Nasrin E. Khalifa
- Department
of Pharmaceutics, College of Pharmacy, University
of Ha’il, Hail 24381, Saudi Arabia
- Department
of Pharmaceutics, Faculty of Pharmacy, University
of Khartoum, Khartoum 13315, Sudan
| | - Weam M. A. Khojali
- Department
of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Omdurman Islamic University, Omdurman 13315, Sudan
| | - Bader Huwaimel
- Department
of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
- Medical
and Diagnostic Research Centre, University
of Ha’il, Hail 55476, Saudi Arabia
| | - Dalal Hussien
M. Alkhalifah
- Department
of Biology, College of Science, Princess
Nourah Bint Abdulrahman University, B.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Wael N. Hozzein
- Botany
and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| |
Collapse
|
4
|
Vikal S, Gautam YK, Meena S, Parewa V, Kumar A, Kumar A, Meena S, Kumar S, Singh BP. Surface functionalized silver-doped ZnO nanocatalyst: a sustainable cooperative catalytic, photocatalytic and antibacterial platform for waste treatment. NANOSCALE ADVANCES 2023; 5:805-819. [PMID: 36756497 PMCID: PMC9890675 DOI: 10.1039/d2na00864e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/28/2022] [Indexed: 05/30/2023]
Abstract
The different dyes used and discharged in industrial settings and microbial pathogenic issues have raised serious concerns about the content of bodies of water and the impact that dyes and microbes have on the environment and human health. Efficient treatment of contaminated water is thus a major challenge that is of great interest to researchers around the world. In the present work, we have fabricated functionalized silver-doped ZnO nanoparticles (Ag-doped ZnO NPs) via a hydrothermal method for wastewater treatment. X-ray photoelectron spectroscopy analysis confirmed the doping of Ag with ZnO NPs, and X-ray diffractometry analysis showed a decreasing trend in the crystallite size of the synthesized ZnO NPs with increased Ag concentration. Field emission scanning electron microscopy study of pure ZnO NPs and Ag-doped ZnO NPs revealed nanocrystal aggregates with mixed morphologies, such as hexagonal and rod-shaped structures. Distribution of Ag on the ZnO lattice is confirmed by high-resolution transmission electron microscopy analysis. ZnO NPs with 4 wt% Ag doping showed a maximum degradation of ∼95% in 1.5 h of malachite green dye (80 mg L-1) under visible light and ∼85% in 4 h under dark conditions. Up to five successive treatment cycles using the 4 wt% Ag-doped ZnO NP nanocatalyst confirmed its reusability, as it was still capable of degrading ∼86% and 82% of the dye under visible light and dark conditions, respectively. This limits the risk of nanotoxicity and aids the cost-effectiveness of the overall treatment process. The synthesized NPs showed antibacterial activity in a dose-dependent manner. The zone of inhibition of the Ag-doped ZnO NPs was higher than that of the pure ZnO NPs for all doping content. The studied Ag-doped ZnO NPs thus offer a significant eco-friendly route for the effective treatment of water contaminated with synthetic dyes and fecal bacterial load.
Collapse
Affiliation(s)
- Sagar Vikal
- Smart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University Meerut 250004 Uttar Pradesh India
| | - Yogendra K Gautam
- Smart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University Meerut 250004 Uttar Pradesh India
| | - Swati Meena
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Vijay Parewa
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Ashwani Kumar
- Nanoscience Laboratory, Institute Instrumentation Centre, IIT Roorkee Roorkee 247667 India
| | - Ajay Kumar
- Department of Biotechnology, Mewar Institute of Management Ghaziabad 201012 Uttar Pradesh India
| | - Sushila Meena
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Sanjay Kumar
- Department of Physics, University of Rajasthan Jaipur 302004 India
| | - Beer Pal Singh
- Smart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University Meerut 250004 Uttar Pradesh India
| |
Collapse
|