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Cai W, Wong K, Huang Q. Isolation, structural features, rheological properties and bioactivities of polysaccharides from Lignosus rhinocerotis: A review. Int J Biol Macromol 2023; 242:124818. [PMID: 37178885 DOI: 10.1016/j.ijbiomac.2023.124818] [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: 01/26/2023] [Revised: 05/04/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
L. rhinocerotis, an edible and medicinal mushroom, has long been utilized as folk medicine and nutritional food in Southeast Asia and southern China. Polysaccharides are the main bioactive substances of L. rhinocerotis sclerotia, and they have attracted extensive attention of researchers both at home and abroad. In the past few decades, various methods have been applied to extract polysaccharides from L. rhinocerotis (LRPs) and the structural features of LRPs are closely related to the used methods of extraction and purification. Many studies have confirmed that LRPs possess various remarkable bioactivities, including immunomodulatory, prebiotic, antioxidant, anti-inflammatory and anti-tumor activities and intestinal mucosa protective effect. As a natural polysaccharide, LRP has the potential to be a drug and functional material. This paper systematically reviews the recent studies on structural characteristics, modification, rheological properties and bioactivities of LRPs, and provides a theoretical basis for an in-depth study of the structure-activity relationship, and utilization of LRPs as therapeutic agents and functional foods. Additionally, the further research and development of LRPs are also prospected.
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Affiliation(s)
- Wudan Cai
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Kahing Wong
- Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Qilin Huang
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China.
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2
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Xanthan Gum-Mediated Silver Nanoparticles for Ultrasensitive Electrochemical Detection of Hg2+ Ions from Water. Catalysts 2023. [DOI: 10.3390/catal13010208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
An environmentally safe, efficient, and economical microwave-assisted technique was selected for the production of silver nanoparticles (AgNPs). To prepare uniformly disseminated AgNPs, xanthan gum (XG) was utilized as both a reducing and capping agent. UV–Vis spectroscopy was used to characterize the formed XG-AgNPs, with the absorption band regulated at 414 nm under optimized parameters. Atomic force microscopy was used to reveal the size and shape of XG-AgNPs. The interactions between the XG capping agent and AgNPs observed using Fourier transform infrared spectroscopy. The XG-AgNPs were placed in between glassy carbon electrode and Nafion® surfaces and then deployed as sensors for voltammetric evaluation of mercury ions (Hg2+) using square-wave voltammetry as an analytical mode. Required Nafion® quantities, electrode behavior, electrolyte characteristics, pH, initial potentials, accumulation potentials, and accumulation durations were all comprehensively investigated. In addition, an electrochemical mechanism for the oxidation of Hg2+ was postulated. With an exceptional limit of detection of 0.18 ppb and an R2 value of 0.981, the sensors’ measured linear response range was 0.0007–0.002 µM Hg2+. Hg2+ evaluations were ultimately unaffected by the presence of many coexisting metal ions (Cd2+, Pb2+, Cr2O4, Co2+,Cu2+, CuSO4). Spiked water samples were tested using the described approach, with Hg2+ recoveries ranging from 97% to 100%.
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3
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Alvandi H, Hatamian-Zarmi A, Webster TJ. Bioactivity and applications of mushroom and polysaccharide-derived nanotherapeutics. Nanomedicine (Lond) 2023. [DOI: 10.1016/b978-0-12-818627-5.00021-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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Hasan KF, Xiaoyi L, Shaoqin Z, Horváth PG, Bak M, Bejó L, Sipos G, Alpár T. Functional silver nanoparticles synthesis from sustainable point of view: 2000 to 2023 ‒ A review on game changing materials. Heliyon 2022; 8:e12322. [PMID: 36590481 PMCID: PMC9800342 DOI: 10.1016/j.heliyon.2022.e12322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/13/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
The green and facile synthesis of metallic silver nanoparticles (AgNPs) is getting tremendous attention for exploring superior applications because of their small dimensions and shape. AgNPs are already proven materials for superior coloration, biocidal, thermal, UV-protection, and mechanical performance. Originally, some conventional chemical-based reducing agents were used to synthesize AgNPs, but these posed potential risks, especially for enhanced toxicity. This became a driving force to innovate plant-based sustainable and green metallic nanoparticles (NPs). Moreover, the synthesized NPs using plant-based derivatives could be tuned and regulated to achieve the required shape and size of the AgNPs. AgNPs synthesized from naturally derived materials are safe, economical, eco-friendly, facile, and convenient, which is also motivating researchers to find greener routes and viable options, utilizing various parts of plants like flowers, stems, heartwood, leaves and carbohydrates like chitosan to meet the demands. This article intends to provide a comprehensive review of all aspects of AgNP materials, including green synthesis methodology and mechanism, incorporation of advanced technologies, morphological and elemental study, functional properties (coloration, UV-protection, biocidal, thermal, and mechanical properties), marketing value, future prospects and application, especially for the last 20 years or more. The article also includes a SWOT (Strengths, weaknesses, opportunities, and threats) analysis regarding the use of AgNPs. This report would facilitate the industries and consumers associated with AgNP synthesis and application through fulfilling the demand for sustainable, feasible, and low-cost product manufacturing protocols and their future prospects.
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Affiliation(s)
- K.M. Faridul Hasan
- Fiber and Nanotechnology Program, University of Sopron, 9400, Sopron, Hungary
- Faculty of Wood Engineering and Creative Industry, University of Sopron, 9400, Sopron, Hungary
| | - Liu Xiaoyi
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education; Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, 550025, Guizhou, PR China
| | - Zhou Shaoqin
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education; Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, 550025, Guizhou, PR China
- Center of Expertise in Mycology, Radboud University Medical Center/Canisius Wilhelmina Hospital, 6525 GA Nijmegen, The Netherlands
| | - Péter György Horváth
- Faculty of Wood Engineering and Creative Industry, University of Sopron, 9400, Sopron, Hungary
| | - Miklós Bak
- Faculty of Wood Engineering and Creative Industry, University of Sopron, 9400, Sopron, Hungary
| | - László Bejó
- Faculty of Wood Engineering and Creative Industry, University of Sopron, 9400, Sopron, Hungary
| | - György Sipos
- Functional Genomics and Bioinformatics Group, Faculty of Forestry, University of Sopron, 9400, Sopron, Hungary
| | - Tibor Alpár
- Fiber and Nanotechnology Program, University of Sopron, 9400, Sopron, Hungary
- Faculty of Wood Engineering and Creative Industry, University of Sopron, 9400, Sopron, Hungary
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5
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Electrospun alginate mats embedding silver nanoparticles with bioactive properties. Int J Biol Macromol 2022; 213:427-434. [PMID: 35661668 DOI: 10.1016/j.ijbiomac.2022.05.183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/18/2022] [Accepted: 05/28/2022] [Indexed: 01/01/2023]
Abstract
Polysaccharide-based composites embedding silver nanoparticles (AgNPs) represent a promising alternative to common antimicrobial materials because of the effective, broad-spectrum biocidal properties of AgNPs combined with the biocompatibility and environmental safety of the naturally occurring polymeric component. In this work, AgNPs stabilized with alginate chains (Alg@AgNPs) were successfully synthesized in situ within the polysaccharide solution through a wet chemical approach carried out at different concentrations of the silver salt precursor. Once obtained, the aqueous suspensions were electrospun to prepare non-woven membranes, showing a homogeneous nanostructured texture (with fiber diameter between 100 and 150 nm), which was found to be influenced by the size (between 20 and 35 nm) of the embedded metal nanoparticles. The biocidal potential of the nanocomposite mats was preliminarily tested against Gram-negative E. coli. The results showed that the antimicrobial response of the investigated samples occurred within a day of incubation and can be observed for AgNPs content in the polysaccharide fibers far below the nanomolar regime.
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Musino D, Devcic J, Lelong C, Luche S, Rivard C, Dalzon B, Landrot G, Rabilloud T, Capron I. Impact of Physico-Chemical Properties of Cellulose Nanocrystal/Silver Nanoparticle Hybrid Suspensions on Their Biocidal and Toxicological Effects. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1862. [PMID: 34361248 PMCID: PMC8308223 DOI: 10.3390/nano11071862] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/08/2021] [Accepted: 07/16/2021] [Indexed: 12/11/2022]
Abstract
There is a demand for nanoparticles that are environmentally acceptable, but simultaneously efficient and low cost. We prepared silver nanoparticles (AgNPs) grafted on a native bio-based substrate (cellulose nanocrystals, CNCs) with high biocidal activity and no toxicological impact. AgNPs of 10 nm are nucleated on CNCs in aqueous suspension with content from 0.4 to 24.7 wt%. XANES experiments show that varying the NaBH4/AgNO3 molar ratio affects the AgNP oxidation state, while maintaining an fcc structure. AgNPs transition from 10 nm spherical NPs to 300 nm triangular-shaped AgNPrisms induced by H2O2 post-treatment. The 48 h biocidal activity of the hybrid tested on B. Subtilis is intensified with the increase of AgNP content irrespective of the Ag+/Ag0 ratio in AgNPs, while the AgNSphere-AgNPrism transition induces a significant reduction of biocidal activity. A very low minimum inhibitory concentration of 0.016 mg AgNP/mL is determined. A new long-term biocidal activity test (up to 168 h) proved efficiency favorable to the smaller AgNPs. Finally, it is shown that AgNPs have no impact on the phagocytic capacity of mammalian cells.
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Affiliation(s)
- Dafne Musino
- INRAE, Institut National de Recherche Pour L’agriculture, L’alimentation et L’environnement, BIA, Biopolymères Interactions et Assemblages, 44316 Nantes, France;
| | - Julie Devcic
- Laboratoire de Chimie et Biologie des Métaux, University Grenoble Alpes, CNRS, CEA, IRIG, CBM, UMR5249, 38000 Grenoble, France; (J.D.); (C.L.); (S.L.); (B.D.)
| | - Cécile Lelong
- Laboratoire de Chimie et Biologie des Métaux, University Grenoble Alpes, CNRS, CEA, IRIG, CBM, UMR5249, 38000 Grenoble, France; (J.D.); (C.L.); (S.L.); (B.D.)
| | - Sylvie Luche
- Laboratoire de Chimie et Biologie des Métaux, University Grenoble Alpes, CNRS, CEA, IRIG, CBM, UMR5249, 38000 Grenoble, France; (J.D.); (C.L.); (S.L.); (B.D.)
| | - Camille Rivard
- SOLEIL Synchrotron, L’Orme des Merisiers, Gif-sur-Yvette, 91192 Saint-Aubin, France; (C.R.); (G.L.)
- INRAE, Institut National de Recherche Pour L’agriculture, L’alimentation et L’environnement, BIA, TRANSFORM, 44316 Nantes, France
| | - Bastien Dalzon
- Laboratoire de Chimie et Biologie des Métaux, University Grenoble Alpes, CNRS, CEA, IRIG, CBM, UMR5249, 38000 Grenoble, France; (J.D.); (C.L.); (S.L.); (B.D.)
| | - Gautier Landrot
- SOLEIL Synchrotron, L’Orme des Merisiers, Gif-sur-Yvette, 91192 Saint-Aubin, France; (C.R.); (G.L.)
| | - Thierry Rabilloud
- Laboratoire de Chimie et Biologie des Métaux, University Grenoble Alpes, CNRS, CEA, IRIG, CBM, UMR5249, 38000 Grenoble, France; (J.D.); (C.L.); (S.L.); (B.D.)
| | - Isabelle Capron
- INRAE, Institut National de Recherche Pour L’agriculture, L’alimentation et L’environnement, BIA, Biopolymères Interactions et Assemblages, 44316 Nantes, France;
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8
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Suo Z, Sun Q, Peng X, Zhang S, Gan N, Zhao L, Yuan N, Zhang Y, Li H. Lentinan as a natural stabilizer with bioactivities for preparation of drug-drug nanosuspensions. Int J Biol Macromol 2021; 184:101-108. [PMID: 34119545 DOI: 10.1016/j.ijbiomac.2021.06.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/29/2021] [Accepted: 06/08/2021] [Indexed: 01/20/2023]
Abstract
Lentinan is a natural β-glucan with various bioactivities and is combined with chemotherapy drugs for cancer treatment. Regorafenib is an oral multi-kinase inhibitor approved by FDA for treatment of metastatic colorectal cancer, advanced hepatocellular carcinoma, and metastatic gastrointestinal stromal tumors. Regorafenib has poor water solubility and multiple toxicities. We report drug-drug nanosuspensions of regorafenib and lentinan. Results of dynamic light scattering and scanning electron microscopy showed that the mean particle size of the regorafenib-lentinan nanosuspensions was approximately 200 nm and was uniformly distributed. Transmission electron microscopy findings indicated that lentinan stabilized the nanosuspensions by steric manner. Hydrogen bonds and hydrophobic interactions were found between regorafenib and lentinan by molecular dynamics simulation. The results of cytotoxicity assay and pharmacokinetics study in rats showed that the regorafenib-lentinan nanosuspensions reduced the toxicity and enhanced the in vitro anticancer activity and oral bioavailability of regorafenib. Lentinan as a natural stabilizer has the potential using for drug nanosuspensions. Drug-drug nanosuspensions are a new form of combination therapies that can reduce the number of drugs taken by patients and improve their compliance.
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Affiliation(s)
- Zili Suo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Qiaomei Sun
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xu Peng
- Experimental and Research Animal Institute, Sichuan University, Chengdu 610207, China
| | - Shuangshuang Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Na Gan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ludan Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Na Yuan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yongkui Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Hui Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
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9
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Meng Y, Zhang H, Hu N, Zhang B, Qiu Z, Hu J, Zheng G, Zhang L, Xu X. Construction of silver nanoparticles by the triple helical polysaccharide from black fungus and the antibacterial activities. Int J Biol Macromol 2021; 182:1170-1178. [PMID: 33895177 DOI: 10.1016/j.ijbiomac.2021.04.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 02/01/2023]
Abstract
Size controllable silver nanoparticles (AgNPs) were synthesized in situ on the polysaccharides-based nanotubes, which were formed by the triple-helix polysaccharide extracted from black fungus (AF1). The results of transmission electron microscope (TEM), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) proved that AgNPs with the size from 10-25 nm were uniformly dispersed on the surface of AF1 dendritic nanotubes without affecting their tubular morphology. Moreover, due to the tubular structure, the loaded silver content of the composites (AgNPs and AF1 nanotube, AF1-Ag) could reach about 50% by thermogravimetric analysis (TG) evaluation. Thus, the smaller size of AgNPs and higher silver loading content suggest that the composites could be applied in the biomedical field. The antibacterial properties of AF1-Ag were evaluated as an example in the present work. As expected, the culture medium contained a few of AF1-Ag (10% ω%, c = 50 μg/mL) exhibited obvious antibacterial properties, and the effect of bacteriostasis increased with the increase of the amount of supported silver content. Taken together, the AF1-Ag with good antibacterial activity and good stability has the potential to be applied in the antibacterial field.
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Affiliation(s)
- Yan Meng
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Hui Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Na Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Baohui Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zhenpeng Qiu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Junjie Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Guohua Zheng
- Key Laboratory of Chinese Medicine Resource and Compound Prescription, Hubei University of Chinese Medicine, Wuhan 430065, China.
| | - Lina Zhang
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China; Hubei Engineering Center of Natural Polymers-based Medical Materials, Wuhan University, Wuhan 430072, China.
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Zheng Z, Zhang Y, Liu Y, Wang J, Cui Z, Pan X, Liu Y, Tang W, Wang K. Metabolic degradation of lentinan in liver mediated by CYP450 enzymes and epoxide hydrolase. Carbohydr Polym 2021; 253:117255. [DOI: 10.1016/j.carbpol.2020.117255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 12/29/2022]
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Duan B, Zou S, Sun Y, Xu X. Fabrication of tumor-targeting composites based on the triple helical β-glucan through conjugation of aptamer. Carbohydr Polym 2020; 254:117476. [PMID: 33357929 DOI: 10.1016/j.carbpol.2020.117476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/31/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022]
Abstract
Herein the nucleic acid aptamers were attached to the polydeoxyadenylic acid (poly(dA)) tail for improving the tumor-targetability and cellular internalization of s-LNT/poly(dA) composite composed of two single chains of triple helical β-glucan lentinan (s-LNT) and one poly(dA) chain. The in vitro results demonstrate that the cellular uptake of s-LNT/poly(dA) composites in MCF-7 cancer cells was enhanced effectively after attaching the aptamer. The as-prepared fluorescin isothiocyanate (FITC)-labelled LNT (LNT-FITC) through grafting was used for tracing the enhanced tumor-targetability of the composites. As a result, the cellular internalization of the LNT-FITC into MCF-7 and 4T1 cancer cells was further increased by the aptamer conjugated to poly(dA). Meanwhile, the in vivo experiments further demonstrate more s-LNT/poly(dA)-aptamer composites were effectively accumulated at the tumor site compared with s-LNT alone. This work provides a novel strategy for fabricating triplex β-glucan as delivery vectors with active tumor-targetability.
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Affiliation(s)
- Bingchao Duan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Siwei Zou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Ying Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China; Hubei Engineering Center of Natural Polymers-based Medical Materials, Wuhan University, Wuhan, 430072, China.
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Su Y, Chen L, Yang F, Cheung PCK. Beta-d-glucan-based drug delivery system and its potential application in targeting tumor associated macrophages. Carbohydr Polym 2020; 253:117258. [PMID: 33278940 DOI: 10.1016/j.carbpol.2020.117258] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/16/2020] [Accepted: 10/13/2020] [Indexed: 02/09/2023]
Abstract
Use of polysaccharides as carriers in drug delivery system is a hot topic, especially those with specific recognition of immune cells, enabling them to be applied in targeting delivery system. β-d-glucans are naturally occurring non-digestible polysaccharides with immunomodulatory activities that have attracted increasing attention to serve as therapeutic agents or immune-adjuvants. Being able to be specifically recognized by immune cells like macrophages, β-d-glucans can be developed as promising carriers for targeting delivery with stability, biocompatibility and specificity when applied in immunotherapy. Targeting tumor associated macrophages (TAMs) is an emerging strategy for cancer immunotherapy since it exerts anti-cancer effects based on modulating body immunity in tumor microenvironment (TME). This new strategy does not require high concentration of drugs to kill cancer cells directly and lessen tumor recurrence by creating unique immune memory for malignant cells. In this review, construction strategies of polysaccharide-based drug delivery system of three types of β-d-glucan including non-yeast and yeast β-d-glucans as well as hyper-branched β-d-glucan are discussed with reference to their branching characteristics and conformation. The applications of these β-d-glucans as nano-carrier for drug delivery targeting TAMs are also discussed.
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Affiliation(s)
- Yuting Su
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
| | - Lei Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Fan Yang
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
| | - Peter C K Cheung
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
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Extruded polysaccharide/protein matrix from Arthrospira platensis cultures mediated silver nanoparticles biosynthesis and capping. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01490-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Zhang W, Xiang Q, Zhao J, Mao G, Feng W, Chen Y, Li Q, Wu X, Yang L, Zhao T. Purification, structural elucidation and physicochemical properties of a polysaccharide from Abelmoschus esculentus L (okra) flowers. Int J Biol Macromol 2020; 155:740-750. [PMID: 32240742 DOI: 10.1016/j.ijbiomac.2020.03.235] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 12/12/2022]
Abstract
Abelmoschus esculentus L (okra) is widely used as a healthy vegetable and favourable source of dietary medicine. Okra flowers which are by-products of okra, are rich in polysaccharide, polyphenols and trace elements etc., however, except a few for health tea, most of them were discarded as the waste of resources. In this study, a polysaccharide named AEFP22 was extracted, purified and identified from okra flowers, and its physicochemical property and antioxidant activity were also elucidated. AEFP22, with a molecular weight of 2.741 × 105 Da, was composed of Rha, GalA and Gal in the ratio of 1: 1.02: 0.86. The methylation and nuclear magnetic resonance (NMR) analysis indicated AEFP22 was composed of [2)-α-D-Rhap-(1 → 4)-α-D-GalpA-(1 → 2,4)-α-D-Rhap-(1 → 4)-α-D-GalpA-(1] with branch of terminal T-α-D-Galp pointed at C4 of 1,2,4-α-D-Rhap. The Conge-red test, Atomic force microscope (AFM) and Scanning electron microscope (SEM) further revealed the triple-helical conformation, irregular sheet structure with molecule aggregations of AEFP22. The physicochemical property analysis indicated AEFP22 possessed stable thermal property and exhibited shear-thinning and normal Newtonian fluid in different concentrations, -7.04 mV zeta potential and polymerization phenomenon existed in AEFP22 solution. AEFP22 exhibited good 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging ability. These results indicated potential utilization of AEFP22 in nutritional food and material application.
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Affiliation(s)
- Weijie Zhang
- School of Food and Biological Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Qingfang Xiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Jie Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Weiwei Feng
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Yao Chen
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Qian Li
- School of Food Science and Engineering, Yangzhou University, Huayangxi Rd. 196, Yangzhou 225127, Jiangsu, China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China.
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China.
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Hamouda RA, Hussein MH, Abo-Elmagd RA, Bawazir SS. Synthesis and biological characterization of silver nanoparticles derived from the cyanobacterium Oscillatoria limnetica. Sci Rep 2019; 9:13071. [PMID: 31506473 PMCID: PMC6736842 DOI: 10.1038/s41598-019-49444-y] [Citation(s) in RCA: 278] [Impact Index Per Article: 55.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 08/09/2019] [Indexed: 12/13/2022] Open
Abstract
Using aqueous cyanobacterial extracts in the synthesis of silver nanoparticle is looked as green, ecofriendly, low priced biotechnology that gives advancement over both chemical and physical methods. In the current study, an aqueous extract of Oscillatoria limnetica fresh biomass was used for the green synthesis of Ag-NPs, since O. limnetica extract plays a dual part in both reducing and stabilizing Oscillatoria-silver nanoparticles (O-AgNPs). The UV-Visible absorption spectrum, Fourier transforms infrared (FT-IR), transmission electron microscopy (TEM) and scanning electron microscope (SEM) were achieved for confirming and characterizing the biosynthesized O-AgNPs. TEM images detected the quasi-spherical Ag-NPs shape with diverse size ranged within 3.30-17.97 nm. FT-IR analysis demonstrated the presence of free amino groups in addition to sulfur containing amino acid derivatives acting as stabilizing agents as well as the presence of either sulfur or phosphorus functional groups which possibly attaches silver. In this study, synthesized Ag-NPs exhibited strong antibacterial activity against multidrug-resistant bacteria (Escherichia coli and Bacillus cereus) as well as cytotoxic effects against both human breast (MCF-7) cell line giving IC50 (6.147 µg/ml) and human colon cancer (HCT-116) cell line giving IC50 (5.369 µg/ml). Hemolytic activity of Ag-NPs was investigated and confirmed as being non- toxic to human RBCs in low concentrations.
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Affiliation(s)
- Ragaa A Hamouda
- Department of biology, Faculty of sciences and Arts Khulais, University of Jeddah, Jeddah, Saudi Arabia.
- Department of Microbial Biotechnology, Genetic Engineering & Research Institute, Sadat University, Sadat city, Egypt.
| | - Mervat H Hussein
- Botany department, Faculty of science, Mansoura University, Mansoura, Egypt
| | - Rasha A Abo-Elmagd
- Botany department, Faculty of science, Mansoura University, Mansoura, Egypt
| | - Salwa S Bawazir
- Department of biology, Faculty of sciences and Arts Khulais, University of Jeddah, Jeddah, Saudi Arabia
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16
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Gasilova ER, Aleksandrova GP, Volchek BZ, Vlasova EN, Baigildin VA. Smart colloids containing ensembles of gold nanoparticles conjugated with κ-carrageenan. Int J Biol Macromol 2019; 137:358-365. [DOI: 10.1016/j.ijbiomac.2019.06.215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/13/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
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17
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Zhou FF, Zhang YD, Zhang Q, Lu J, Liu Y, Wang JH. Structure characterization and immunological activity of a β-glucan from White H. marmoreus and its silver nanoparticle derivatives. Carbohydr Polym 2019; 210:1-8. [DOI: 10.1016/j.carbpol.2019.01.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/02/2019] [Accepted: 01/16/2019] [Indexed: 10/27/2022]
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18
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Duan B, Zou S, Sun Y, Xu X. Nanoplatform Constructed from a β-Glucan and Polydeoxyadenylic Acid for Cancer Chemotherapy and Imaging. Biomacromolecules 2019; 20:1567-1577. [PMID: 30799607 DOI: 10.1021/acs.biomac.8b01780] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A nanoplatform carrying doxorubicin (Dox) for cancer therapy and a dye for imaging was developed based on a natural triple helix β-glucan (t-LNT) and polydeoxyadenylic acid (poly(dA)). The t-LNT-Dox conjugates were prepared through Schiff-base reaction between the aldehyde group in the oxidized t-LNT and the amino group of Dox, the single chains (s-LNT-Dox) of which interacted with the poly(dA)-dye to form a composite s-LNT-Dox/poly(dA)-dye through hydrogen bonding between s-LNT and poly(dA). t-LNT-Dox was confirmed to acid-responsively release Dox in vitro, showing enhanced cytotoxicity against HeLa cancer cells with time. It was confirmed that Dox and the dye could be simultaneously delivered into HeLa cells or the tumors with a prolonged duration time. Furthermore, LNT-Dox conjugates effectively inhibited tumor growth and decreased adverse effects of the free Dox in vivo. Hence, this work develops a new strategy to fabricate the nanoplatform for therapy and imaging using a natural polysaccharide.
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Affiliation(s)
- Bingchao Duan
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Siwei Zou
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Ying Sun
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
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19
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Wu C, Wang X, Chu B, Tang S, Wang Y. Self-Assembly of Core-Corona β-Glucan into Stiff and Metalizable Nanostructures from 1D to 3D. ACS NANO 2018; 12:10545-10553. [PMID: 30234296 DOI: 10.1021/acsnano.8b06560] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of self-assembly strategies for well-studied biopolymers is an important route to complex and functional nanostructures. Here, we report the self-assembly of a stiff polysaccharide, formylated yeast β-glucan, into multiple highly ordered nanostructures from 1D to 3D. This polysaccharide could fold into a two-component helix that consisted of a rod-like helical core and flexible coronas. Annealing in formic acid can trigger the cross-linking of the coronas, resulting in the packing of helices into rod-like, sheet-like, or tube-like supramolecular nanostructures. The specific morphology of the resultant assemblies can be controlled by different annealing conditions such as annealing speed or polymer concentrations. Owing to the presence of reductant formyl groups, these β-glucan nanostructures can reduce silver ions in situ, leading to the guided assembly of ultrathin silver nanowires, silver-polymer nanorods, and silver-polymer necklaces.
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Affiliation(s)
| | | | - Bin Chu
- Key Laboratory of Biomedical Materials and Implants , Research Institute of Tsinghua University in Shenzhen , Shenzhen 518057 , China
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20
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Wu DT, Deng Y, Zhao J, Li SP. Molecular characterization of branched polysaccharides from Tremella fuciformis
by asymmetrical flow field-flow fractionation and size exclusion chromatography. J Sep Sci 2017; 40:4272-4280. [DOI: 10.1002/jssc.201700615] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/04/2017] [Accepted: 08/14/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Ding-Tao Wu
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Yong Deng
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Shao-Ping Li
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao China
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21
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A novel self-assembly Lentinan-tetraphenylethylene composite with strong blue fluorescence in water and its properties. Carbohydr Polym 2017; 174:13-24. [DOI: 10.1016/j.carbpol.2017.06.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 06/01/2017] [Accepted: 06/04/2017] [Indexed: 12/13/2022]
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22
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Sathiyanarayanan G, Dineshkumar K, Yang YH. Microbial exopolysaccharide-mediated synthesis and stabilization of metal nanoparticles. Crit Rev Microbiol 2017; 43:731-752. [DOI: 10.1080/1040841x.2017.1306689] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ganesan Sathiyanarayanan
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Krishnamoorthy Dineshkumar
- Department of Plant Science, School of Biological Sciences, Central University of Kerala, Kasaragod, India
- Marine and Lake Biogeochemistry Group, Institute F.-A. Forel, Earth and Environmental Sciences, University of Geneva, Geneva, Switzerland
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
- Microbial Carbohydrate Resource Bank, Konkuk University, Seoul, South Korea
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23
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Construction of a Cordyceps sinensis exopolysaccharide-conjugated selenium nanoparticles and enhancement of their antioxidant activities. Int J Biol Macromol 2017; 99:483-491. [PMID: 28274870 DOI: 10.1016/j.ijbiomac.2017.03.016] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 01/16/2023]
Abstract
A Cordyceps sinensis exopolysaccharide (EPS)-conjugated selenium nanoparticles (SeNPs) were successfully constructed through the reduction of SeO32-. The EPS-SeNPs were characterized in terms of formation, morphology, size, Se distribution and phase by UV-vis, FT-IR, transmission electron microscopy (TEM), dynamic light scattering (DLS), energy dispersive X-ray (EDX) and wide angle X-ray diffraction (WAXD) measurements. Results revealed that the SeNPs conjugated to EPS were amorphous and could be well dispersed at a size range of 80-125nm. The interactions between the OH groups of EPS and SeNPs substituted for intermolecular interaction in native EPS to form new CO⋯Se bonds, resulting in good dispersion of SeNPs in the EPS matrix. Besides, the EPS-SeNPs at different Se/P ratios exhibited significant scavenging ability on superoxide anion radical (O2-) and ABTS radical cation (ABTS+) when compared to pure EPS, indicating that the conjugated SeNPs reinforced antioxidant effect of EPS. This work not only provides a simple and efficient way to construct well-dispersed SeNPs in aqueous system, and demonstrates the vital role of the EPS as a biopolymer template for dispersion, stabilization and size control of SeNPs, but also finds the EPS-SeNPs can potentially serve as a good antioxidant towards O2- and ABTS+.
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24
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Vedhanayagam M, Nidhin M, Duraipandy N, Naresh ND, Jaganathan G, Ranganathan M, Kiran MS, Narayan S, Nair BU, Sreeram KJ. Role of nanoparticle size in self-assemble processes of collagen for tissue engineering application. Int J Biol Macromol 2017; 99:655-664. [PMID: 28274865 DOI: 10.1016/j.ijbiomac.2017.02.102] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 02/28/2017] [Accepted: 02/28/2017] [Indexed: 11/26/2022]
Abstract
Nanoparticle mediated extracellular matrix may offer new and improved biomaterial to wound healing and tissue engineering applications. However, influence of nanoparticle size in extracellular matrix is still unclear. In this work, we synthesized different size of silver nanoparticles (AgNPs) comprising of 10nm, 35nm and 55nm using nutraceuticals (pectin) as reducing as well as stabilization agents through microwave irradiation method. Synthesized Ag-pectin nanoparticles were assimilated in the self-assemble process of collagen leading to fabricated collagen-Ag-pectin nanoparticle based scaffolds. Physico-chemical properties and biocompatibility of scaffolds were analyzed through FT-IR, SEM, DSC, mechanical strength analyzer, antibacterial activity and MTT assay. Our results suggested that 10nm sized Ag-pectin nanoparticles significantly increased the denaturation temperature (57.83°C) and mechanical strength (0.045MPa) in comparison with native collagen (50.29°C and 0.011MPa). The in vitro biocompatibility assay reveals that, collagen-Ag-pectin nanoparticle based scaffold provided higher antibacterial activity against to Gram positive and Gram negative as well as enhanced cell viability toward keratinocytes. This work opens up a possibility of employing the pectin caged silver nanoparticles to develop collagen-based nanoconstructs for biomedical applications.
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Affiliation(s)
- Mohan Vedhanayagam
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - Marimuthu Nidhin
- Department of Chemistry, Amity School of Applied Sciences, Amity University, Gurgaon, India
| | - Natarajan Duraipandy
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | | | - Ganesh Jaganathan
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - Mohan Ranganathan
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | | | - Shoba Narayan
- Faculty of Allied Health Sciences, Chettinad Academy of Research & Education, Chennai 603 103, India
| | - Balachandran Unni Nair
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
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25
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Goyal G, Hwang J, Aviral J, Seo Y, Jo Y, Son J, Choi J. Green synthesis of silver nanoparticles using β-glucan, and their incorporation into doxorubicin-loaded water-in-oil nanoemulsions for antitumor and antibacterial applications. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Liu Q, Duan B, Xu X, Zhang L. Progress in rigid polysaccharide-based nanocomposites with therapeutic functions. J Mater Chem B 2017; 5:5690-5713. [DOI: 10.1039/c7tb01065f] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nanocomposites engineered by incorporating versatile nanoparticles into different bioactive β-glucan matrices display effective therapeutic functions.
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Affiliation(s)
- Qingye Liu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
- College of Chemical and Environmental Engineering
| | - Bingchao Duan
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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27
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Chen L, Liu X, Wong KH. Novel nanoparticle materials for drug/food delivery-polysaccharides. PHYSICAL SCIENCES REVIEWS 2016. [DOI: 10.1515/psr-2016-0053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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28
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Zhang W, Zhao XJ, Jiang Y, Zhou Z. Citrus pectin derived silver nanoparticles and their antibacterial activity. INORG NANO-MET CHEM 2016. [DOI: 10.1080/15533174.2015.1137073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Wenlin Zhang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, P. R. China
| | - Xi Juan Zhao
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, P. R. China
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing, P. R. China
| | - Yanyan Jiang
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, P. R. China
| | - Zhiqin Zhou
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, P. R. China
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, Chongqing, P. R. China
- Laboratory of Quality & Safety Risk Assessment for Citrus Products, Ministry of Agriculture, Chongqing, P. R. China
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29
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Biopolymers Regulate Silver Nanoparticle under Microwave Irradiation for Effective Antibacterial and Antibiofilm Activities. PLoS One 2016; 11:e0157612. [PMID: 27304672 PMCID: PMC4909208 DOI: 10.1371/journal.pone.0157612] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 06/01/2016] [Indexed: 01/29/2023] Open
Abstract
In the current study, facile synthesis of carboxymethyl cellulose (CMC) and sodium alginate capped silver nanoparticles (AgNPs) was examined using microwave radiation and aniline as a reducing agent. The biopolymer matrix embedded nanoparticles were synthesized under various experimental conditions using different concentrations of biopolymer (0.5, 1, 1.5, 2%), volumes of reducing agent (50, 100, 150 μL), and duration of heat treatment (30 s to 240 s). The synthesized nanoparticles were analyzed by scanning electron microscopy, UV-Vis spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy for identification of AgNPs synthesis, crystal nature, shape, size, and type of capping action. In addition, the significant antibacterial efficacy and antibiofilm activity of biopolymer capped AgNPs were demonstrated against different bacterial strains, Staphylococcus aureus MTCC 740 and Escherichia coli MTCC 9492. These results confirmed the potential for production of biopolymer capped AgNPs grown under microwave irradiation, which can be used for industrial and biomedical applications.
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30
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Tian N, Ni X, Shen Z. Synthesis of main-chain imidazolium-based hyperbranched polymeric ionic liquids and their application in the stabilization of Ag nanoparticles. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Chen X, Yan JK, Wu JY. Characterization and antibacterial activity of silver nanoparticles prepared with a fungal exopolysaccharide in water. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2014.12.032] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Ag/α-Fe2O3 hollow microspheres: Preparation and application for hydrogen peroxide detection. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.06.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Luo Y, Shen S, Luo J, Wang X, Sun R. Green synthesis of silver nanoparticles in xylan solution via Tollens reaction and their detection for Hg(2+). NANOSCALE 2015; 7:690-700. [PMID: 25429650 DOI: 10.1039/c4nr05999a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This work reported a facile and green method to prepare highly stable and uniformly distributed Ag nanoparticles (AgNPs), in which a biopolymer xylan was used as the stabilizing and reducing agent via the Tollens reaction under microwave irradiation. Different variables were evaluated to optimize the reaction conditions. Complete characterization was performed using UV-Vis, XRD, TEM, size distribution analysis and XPS. The results revealed that AgNPs were well dispersed with diameters of 20-35 nm due to the packing of xylan. The optimal conditions were as follows: microwave irradiation temperature was 60-70 °C, microwave power was 800 W, microwave time was 30 min, the ratio of xylan to AgNO3 was 50 mg: 0.13 mmol, and ammonia concentration was 2%. In addition, the AgNPs were collected via high-speed centrifugal separation, and the supernatant was tested by HPAEC, GPC, FT-IR, and NMR. By comparing the structure of xylan before and after the reaction, the reaction mechanism was discussed. It was noted that the xylan-AgNPs composites showed high selectivity and sensitivity for Hg(2+) detection. The other 15 metal ions used had no obvious effect on the detection of Hg(2+), and the limit of detection (LOD) was 4.6 nM, which is lower than the allowed maximum level of 30 nM for drinking water by WHO. In addition, the xylan-AgNPs composites can be applied for Hg(2+) detection in real water samples. This study provides a novel way for the high-value utilization of a rich biomass resource, and a green method for the synthesis of AgNPs for the selective and sensitive detection of harmful heavy metals.
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Affiliation(s)
- Yuqiong Luo
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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34
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Synthesis of Water-Soluble Iridium (III)-Containing Nanoparticles for Biological Applications. J CHEM-NY 2015. [DOI: 10.1155/2015/475602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Water-soluble nanoparticles (Ir/PGlc-NP, Ir/β-1,3-glucan-NP) based on water-soluble glycopolymers (PGlc),β-1,3-glucan polysaccharide, and conjugated phosphorescent Ir (III) complexes were successfully synthesized by self-assembly. The obtained nanoparticles have good spherical morphological characterization with a mean diameter of 50 nm measured by TEM. Ir/PGlc-NP and Ir/β-1,3-glucan-NP showed the same emission maxima at 565 nm in aqueous solution and both caused effective apoptosis and death of HepG2 and Hela cells after being irradiated at 445 nm for 30 min in vitro. Fluorescence cellular imaging was conducted by confocal laser scanning microscopy (CLSM) using HepG2 cells as the model cell in which the nanoparticles had successfully entered into the cytoplasm with high brightness. Furthermore, after injecting the nanoparticles into live mice in vivo, the real-time fluorescence imaging as well as the nanoparticles distribution in organs at 24 hours after administration indicated that these nanoparticles can serve as fluorescent imaging contrast for further biological applications.
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35
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Zheng Z, Huang Q, Guan H, Liu S. In situ synthesis of silver nanoparticles dispersed or wrapped by a Cordyceps sinensis exopolysaccharide in water and their catalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra09452f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In situ synthesis of silver nanoparticles (AgNPs) dispersed or wrapped by a Cordyceps sinensis exopolysaccharide (EPS) and their catalytic activity.
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Affiliation(s)
- Zhaomin Zheng
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Qilin Huang
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Han Guan
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Shiyu Liu
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
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36
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Jia X, Liu Q, Zou S, Xu X, Zhang L. Construction of selenium nanoparticles/β-glucan composites for enhancement of the antitumor activity. Carbohydr Polym 2014; 117:434-442. [PMID: 25498656 DOI: 10.1016/j.carbpol.2014.09.088] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/05/2014] [Accepted: 09/25/2014] [Indexed: 12/25/2022]
Abstract
We report on a green procedure for the stabilization of selenium nanoparticles (SeNPs) by a naturally occurring β-glucan with triple helical conformation known as Lentinan (t-LNT) in water after denaturing into single chains (s-LNT) at 140 °C. The results demonstrated that the s-LNT can interact with SeNPs through Se-O-H interaction. Transmission electron microscopy (TEM), energy dispersive X-ray (EDX) spectra, UV/vis, X-ray diffraction (XRD) and dynamic light scattering (DLS) showed that s-LNT coated SeNPs to form a stable nano-composite Se/s-LNT, leading to good dispersion of SeNPs. Especially, the as-prepared Se/s-LNT composite in the solution could remain homogeneous and translucent for 30 days without any precipitates. Different size distribution of SeNPs was prepared by simply controlling the concentrations of selenite sodium and the corresponding reducing agent ascorbic acid. The size effect of SeNPs on anti-tumor activity was revealed that the SeNPs with more evenly particle size distribution show the higher anticancer activity.
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Affiliation(s)
- Xuewei Jia
- College of Chemistry and Molecular Sciences, Wuhan University, Wuchang Luojiashan, Wuhan 430072, China
| | - Qingye Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuchang Luojiashan, Wuhan 430072, China
| | - Siwei Zou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuchang Luojiashan, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuchang Luojiashan, Wuhan 430072, China.
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuchang Luojiashan, Wuhan 430072, China
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37
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Quaternized cellulose-supported gold nanoparticles as capillary coatings to enhance protein separation by capillary electrophoresis. J Chromatogr A 2014; 1343:160-6. [DOI: 10.1016/j.chroma.2014.03.079] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 03/30/2014] [Accepted: 03/31/2014] [Indexed: 12/17/2022]
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38
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Zhao X, Xia Y, Li Q, Ma X, Quan F, Geng C, Han Z. Microwave-assisted synthesis of silver nanoparticles using sodium alginate and their antibacterial activity. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.12.008] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Li S, Huang Y, Wang S, Xu X, Zhang L. Determination of the Triple Helical Chain Conformation of β-Glucan by Facile and Reliable Triple-Detector Size Exclusion Chromatography. J Phys Chem B 2014; 118:668-75. [DOI: 10.1021/jp4087199] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sheng Li
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Yao Huang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Sen Wang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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Liu Q, Wang C, Cao Y, Xu X, Zhang L. A novel gene carrier prepared from triple helical β-glucan and polydeoxyadenylic acid. J Mater Chem B 2014; 2:933-944. [DOI: 10.1039/c3tb21195a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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41
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Green synthesis of xanthan conformation-based silver nanoparticles: Antibacterial and catalytic application. Carbohydr Polym 2014; 101:961-7. [DOI: 10.1016/j.carbpol.2013.10.032] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 10/08/2013] [Accepted: 10/13/2013] [Indexed: 11/22/2022]
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42
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Watanabe E, Tamura N, Saito T, Habu N, Isogai A. Preparation of completely C6-carboxylated curdlan by catalytic oxidation with 4-acetamido-TEMPO. Carbohydr Polym 2014; 100:74-9. [DOI: 10.1016/j.carbpol.2012.11.094] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 10/20/2012] [Accepted: 11/21/2012] [Indexed: 10/27/2022]
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43
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Stability of (1→3)-β-polyglucuronic acid under various pH and temperature conditions. Carbohydr Polym 2013; 97:413-20. [DOI: 10.1016/j.carbpol.2013.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/04/2013] [Accepted: 05/09/2013] [Indexed: 11/22/2022]
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44
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Watanabe E, Habu N, Isogai A. Biodegradation of (1→3)-β-polyglucuronate prepared by TEMPO-mediated oxidation. Carbohydr Polym 2013; 96:314-9. [DOI: 10.1016/j.carbpol.2013.03.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 03/23/2013] [Accepted: 03/25/2013] [Indexed: 11/29/2022]
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45
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Aqueous synthesis and stabilization of highly concentrated gold nanoparticles using sterically hindered functional polymer. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.04.074] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Yan JK, Cai PF, Cao XQ, Ma HL, Zhang Q, Hu NZ, Zhao YZ. Green synthesis of silver nanoparticles using 4-acetamido-TEMPO-oxidized curdlan. Carbohydr Polym 2013; 97:391-7. [PMID: 23911462 DOI: 10.1016/j.carbpol.2013.05.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 04/24/2013] [Accepted: 05/20/2013] [Indexed: 10/26/2022]
Abstract
A facile, simple, and eco-friendly method using 4-acetamido-2,2,6,6-tetramethypiperidine-1-oxyl radical-oxidized curdlan (Oc) as both reducing and stabilizing agents was developed for the fabrication of silver nanoparticles (AgNPs) from silver nitrate (AgNO₃). The structure, morphology, and particle size of the as-prepared AgNPs were investigated by ultraviolet-visible spectroscopy, transmission electron microscopy, energy dispersive X-ray spectrometry, X-ray diffraction, and dynamic laser light scattering. The well-dispersed AgNPs were sphere like with a mean diameter of 15 nm. Their formation was dependent on reaction duration, reaction temperature, Oc concentration, and AgNO₃ concentration. Fourier transform-infrared and Raman spectra demonstrated that the as-prepared AgNPs can readily bind covalently with the carboxylate groups of Oc through the strong monodentate interaction in the reaction medium.
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
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47
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Jia X, Xu X, Zhang L. Synthesis and Stabilization of Gold Nanoparticles Induced by Denaturation and Renaturation of Triple Helical β-Glucan in Water. Biomacromolecules 2013; 14:1787-94. [DOI: 10.1021/bm400182q] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xuewei Jia
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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48
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Nandi LG, Guerra JPTA, Bellettini IC, Machado VG, Minatti E. Properties of aqueous solutions of lentinan in the absence and presence of zwitterionic surfactants. Carbohydr Polym 2013; 98:1-7. [PMID: 23987310 DOI: 10.1016/j.carbpol.2013.04.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 04/11/2013] [Accepted: 04/13/2013] [Indexed: 10/26/2022]
Abstract
Morphological and conformational transitions of lentinan (LT), a β-glucan extracted from Shiitake mushrooms (Lentinula edodes), were investigated at different concentrations of aqueous NaOH, using Small Angle X-ray Scattering (SAXS) technique. At low NaOH(aq) concentration LT chains are self-associated and adopt the triple helix form where as at higher NaOH concentrations the polymer chains undergo a transition to random coil chains. Also, the presence of fractal dimensions was observed through analysis of the exponential decay of the scattering intensity as a function of the scattering angle. In addition, the lateral radius of gyration was determined for LT in different concentrations of NaOH solution, indicating a rigid triple helix present as a small rod-like structure. Interactions of LT with two zwitterionic surfactants were investigated by surface tension, fluorescence, and static light scattering measurements. Experimental data showed that the formation of LT-(surfactant) complexes occurred through a cooperative process.
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Affiliation(s)
- Leandro G Nandi
- Departamento de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
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49
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Lentinan greatly enhances the dispersibility of single-walled carbon nanotubes in water and decreases the cytotoxicity. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.bcdf.2013.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Peng H, Yang A, Xiong J. Green, microwave-assisted synthesis of silver nanoparticles using bamboo hemicelluloses and glucose in an aqueous medium. Carbohydr Polym 2013; 91:348-55. [DOI: 10.1016/j.carbpol.2012.08.073] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Revised: 07/30/2012] [Accepted: 08/20/2012] [Indexed: 11/25/2022]
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