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Echegaray-Ugarte TS, Cespedes-Loayza AL, Cruz-Loayza JL, Huayapa-Yucra LA, Cruz I, de Carvalho JC, Goyzueta-Mamani LD. Green Synthesis of Silver Nanoparticles Mediated by Punica granatum Peel Waste: An Effective Additive for Natural Rubber Latex Nanofibers Enhancement. Polymers (Basel) 2024; 16:1531. [PMID: 38891477 PMCID: PMC11174564 DOI: 10.3390/polym16111531] [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: 04/10/2024] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Pomegranate waste poses an environmental challenge in Arequipa. Simultaneously, interest in sustainable materials like natural rubber latex (NRL) is growing, with Peruvian communities offering a promising source. This study explores the green synthesis of silver nanoparticles (AgNPs) using pomegranate peel extract and their incorporation into NRL nanofibers for enhanced functionalities. An eco-friendly process utilized silver nitrate and pomegranate peel extract as a reducing and capping agent to synthesize AgNPs. The resulting AgNPs and NRL/AgNPs nanofibers were characterized using imaging and spectroscopic techniques such as UV-vis, TGA, FTIR, XRD, Raman, SEM, and DLS. Green-synthesized AgNPs were spherical and crystalline, with an average diameter of 59 nm. They showed activity against K. pneumoniae, E. coli, B. cereus, and S. aureus (IC50: 51.32, 4.87, 27.72, and 69.72 µg/mL, respectively). NRL and NRL/AgNPs nanofibers (300-373 nm diameter) were successfully fabricated. The composite nanofibers exhibited antibacterial activity against K. pneumoniae and B. cereus. This study presents a sustainable approach by utilizing pomegranate waste for AgNP synthesis and NRL sourced from Peruvian communities. Integrating AgNPs into NRL nanofibers produced composites with antimicrobial properties. This work has potential applications in smart textiles, biomedical textiles, and filtration materials where sustainability and antimicrobial functionality are crucial.
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Affiliation(s)
- Talia S. Echegaray-Ugarte
- Sustainable Innovative Biomaterials Department, Le Qara Research Center, Arequipa 04000, Peru; (T.S.E.-U.); (A.L.C.-L.); (J.L.C.-L.); (L.A.H.-Y.); (I.C.)
| | - Andrea L. Cespedes-Loayza
- Sustainable Innovative Biomaterials Department, Le Qara Research Center, Arequipa 04000, Peru; (T.S.E.-U.); (A.L.C.-L.); (J.L.C.-L.); (L.A.H.-Y.); (I.C.)
| | - Jacqueline L. Cruz-Loayza
- Sustainable Innovative Biomaterials Department, Le Qara Research Center, Arequipa 04000, Peru; (T.S.E.-U.); (A.L.C.-L.); (J.L.C.-L.); (L.A.H.-Y.); (I.C.)
| | - Luis A. Huayapa-Yucra
- Sustainable Innovative Biomaterials Department, Le Qara Research Center, Arequipa 04000, Peru; (T.S.E.-U.); (A.L.C.-L.); (J.L.C.-L.); (L.A.H.-Y.); (I.C.)
| | - Isemar Cruz
- Sustainable Innovative Biomaterials Department, Le Qara Research Center, Arequipa 04000, Peru; (T.S.E.-U.); (A.L.C.-L.); (J.L.C.-L.); (L.A.H.-Y.); (I.C.)
| | - Júlio Cesar de Carvalho
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná—Polytechnic Center, Curitiba 81531-980, Brazil;
| | - Luis Daniel Goyzueta-Mamani
- Vicerrectorado de Investigación, Universidad Católica de Santa María, Urb. San José s/n-Umacollo, Arequipa 04000, Peru
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Fang H, He Y, Li Y, Du J. A Study on the Preparation of a Vulcanizing Mixture and Its Application in Natural Rubber Latex. Polymers (Basel) 2024; 16:1256. [PMID: 38732724 PMCID: PMC11085568 DOI: 10.3390/polym16091256] [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: 04/17/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
The traditional preparation process of natural rubber latex requires tedious treatment of a variety of rubber additives. In this paper, a new process of wet mixed grinding was used to prepare a reinforced vulcanization mixture and a rapid vulcanization effect. The effect of different amounts of vulcanization mixtures on the mechanical properties of natural latex film was studied, and the pre-vulcanization process of latex and the vulcanization process of film were optimized. The results showed that with the increase in the amount of vulcanization mixture, the tensile strength increased from 5.96 MPa to 29.28 MPa, and the tear strength increased from 7.59 kN/m to 52.81 kN/m. When the vulcanization temperature of the latex film is heated from 80 °C to 100 °C, the vulcanization time is shortened by 5~6 times. The new vulcanization mixture prepared in this work has the characteristics of simple production and fast vulcanization speed, which provides a new solution for the development of the latex product industry.
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Affiliation(s)
| | | | | | - Jie Du
- School of Materials Science and Engineering, Hainan University, Haikou 570228, China; (H.F.); (Y.H.); (Y.L.)
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Zhu W, Li B, Liu J, Sun S, Zhang Y, Zhang D, Li C, Sun T, Qin H, Shi J, Shi Z. A Versatile Approach for the Synthesis of Antimicrobial Polymer Brushes on Natural Rubber/Graphene Oxide Composite Films via Surface-Initiated Atom-Transfer Radical Polymerization. Molecules 2024; 29:913. [PMID: 38398663 PMCID: PMC10891501 DOI: 10.3390/molecules29040913] [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: 01/06/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
A simple strategy was adopted for the preparation of an antimicrobial natural rubber/graphene oxide (NR/GO) composite film modified through the use of zwitterionic polymer brushes. An NR/GO composite film with antibacterial properties was prepared using a water-based solution-casting method. The composited GO was dispersed uniformly in the NR matrix and compensated for mechanical loss in the process of modification. Based on the high bromination activity of α-H in the structure of cis-polyisoprene, the composite films were brominated on the surface through the use of N-bromosuccinimide (NBS) under the irradiation of a 40 W tungsten lamp. Polymerization was carried out on the brominated films using sulfobetaine methacrylate (SBMA) as a monomer via surface-initiated atom transfer radical polymerization (SI-ATRP). The NR/GO composite films modified using polymer brushes (PSBMAs) exhibited 99.99% antimicrobial activity for resistance to Escherichia coli and Staphylococcus aureus. A novel polymer modification strategy for NR composite materials was established effectively, and the enhanced antimicrobial properties expand the application prospects in the medical field.
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Affiliation(s)
- Wenya Zhu
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Bangsen Li
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Jinrui Liu
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Shishu Sun
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Yan Zhang
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Dashuai Zhang
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Chen Li
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Tianyi Sun
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Huaide Qin
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China;
| | - Jianjun Shi
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
| | - Zaifeng Shi
- Collage of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (W.Z.); (B.L.); (J.L.); (Y.Z.); (C.L.); (T.S.)
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, China
- Haikou Key Laboratory of Water Environmental Pollution Control, Haikou 571158, China
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Tsong JL, Robert R, Khor SM. Emerging trends in wearable glove-based sensors: A review. Anal Chim Acta 2023; 1262:341277. [PMID: 37179058 DOI: 10.1016/j.aca.2023.341277] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Glove-based wearable chemical sensors are universal analytical tools that provide surface analysis for various samples in dry or liquid form by swiping glove sensors on the sample surface. They are useful in crime scene investigation, airport security, and disease control for detecting illicit drugs, hazardous chemicals, flammables, and pathogens on various surfaces, such as foods and furniture. It overcomes the inability of most portable sensors to monitor solid samples. It outperforms most wearable sensors (e.g., contact lenses and mouthguard sensors) for healthcare monitoring by providing comfort that does not interfere with daily activities and reducing the risk of infection or other adverse health effects caused by prolonged usage. Detailed information is provided regarding the challenges and selection criteria for the desired glove materials and conducting nanomaterials for developing glove-based wearable sensors. Focusing on nanomaterials, various transducer modification techniques for various real-world applications are discussed. The steps taken by each study platform to address the existing issues are revealed, as are their benefits and drawbacks. The Sustainable Development Goals (SDGs) and strategies for properly disposing of used glove-based wearable sensors are critically evaluated. A glance at all the provided tables provides insight into the features of each glove-based wearable sensor and enables a quick comparison of their functionalities.
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Affiliation(s)
- Jia Ling Tsong
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Rodney Robert
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Sook Mei Khor
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia; Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia; Centre for Innovation in Medical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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Mussagy CU, Oshiro A, Lima CA, Amantino CF, Primo FL, Santos-Ebinuma VC, Herculano RD. Natural fluorescent red colorants produced by Talaromyces amestolkiae as promising coloring agents for custom-made latex gloves. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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