1
|
Saifuddin NN, Matussin SN, Fariduddin Q, Khan MM. Potentials of roots, stems, leaves, flowers, fruits, and seeds extract for the synthesis of silver nanoparticles. Bioprocess Biosyst Eng 2024; 47:1119-1137. [PMID: 38904717 DOI: 10.1007/s00449-024-03044-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 06/06/2024] [Indexed: 06/22/2024]
Abstract
Silver nanoparticles (AgNPs) have gained significant attention in various applications due to their unique properties that differ from bulk or macro-sized counterparts. In the advancement of nanotechnology, a reliable, non-toxic, and eco-friendly green synthesis has widely been developed as an alternative method for the production of AgNPs, overcoming limitations associated with the traditional physical and chemical methods. Green synthesis of AgNPs involves the utilization of biological sources including plant extracts with silver salt as the precursor. The potential of phytochemicals in plant extracts serves as a reducing/capping and stabilizing agent to aid in the bio-reduction of Ag+ ions into a stable nanoform, Ag0. This review provides insights into the potentials of various plant parts like root, stem, leaf, flower, fruit, and seed extracts that have been extensively reported for the synthesis of AgNPs.
Collapse
Affiliation(s)
- Nurul Nazirah Saifuddin
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - Shaidatul Najihah Matussin
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam.
| |
Collapse
|
2
|
Peng S, Song J, Wu S, Wang Q, Shen L, Li D, Peng J, Zhang Q, Yang X, Xu H, Redshaw C, Li Y. Aggregation-Induced Emission Photosensitizer with Ag(I)-π Interaction-Enhanced Reactive Oxygen Species for Eliminating Multidrug Resistant Bacteria. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30915-30928. [PMID: 38847621 DOI: 10.1021/acsami.4c05202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Multidrug-resistant (MDR) bacteria pose serious threats to public health due to the lack of effective and biocompatible drugs to kill MDR bacteria. Photodynamic antibacterial therapy has been widely studied due to its low induction of resistance. However, photosensitizers that can efficiently generate reactive oxygen species (ROS) through both type I and type II mechanisms and that have the capability of multiple modes of action are rarely reported. Addressing this issue, we developed a near-infrared-emitting triphenylamine indole iodoethane (TTII) and its silver(I) self-assembled (TTIIS) aggregation-induced emission (AIE) photosensitizer for multimode bacterial infection therapy. TTII can efficiently produce both Type I ROS •OH and Type II ROS 1O2. Interestingly, the Ag(I)-π interaction contributed in TTIIS efficiency promotion of the generation of 1O2. Moreover, by releasing Ag+, TTIIS enabled photodynamic-Ag(I) dual-mode sterilization. As a result, TTIIS achieved an effective enhancement of antibacterial activity, with a 1-2-fold boost against multidrug-resistant Escherichia coli (MDR E. coli). Both TTII and TTIIS at a concentration as low as 0.55 μg mL-1 can kill more than 98% of methicillin resistant Staphylococcus aureus (MRSA) on MRSA-infected full-thickness defect wounds of a mouse, and both TTII and TTIIS were effective in eliminating the bacteria and promoting wound healing.
Collapse
Affiliation(s)
- Senlin Peng
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, China
| | - Jiayi Song
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Shouting Wu
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, China
| | - Qian Wang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Lingyi Shen
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Dongmei Li
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Jian Peng
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Qilong Zhang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Xianjiong Yang
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Hong Xu
- School of Basic Medicine, Guizhou Medical University, Guiyang 550025, China
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull, Cottingham Road, Hull, Yorkshire HU6 7RX, United Kingdom
| | - Ying Li
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| |
Collapse
|
3
|
Zhu Z, He C, Sha J, Xiao K, Zhu L. Cation-exchange fibers and silver nanoparticles-modified carbon electrodes for selective removal of hardness ions and simultaneous deactivation of microorganisms in capacitive deionization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171318. [PMID: 38423341 DOI: 10.1016/j.scitotenv.2024.171318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/24/2024] [Accepted: 02/25/2024] [Indexed: 03/02/2024]
Abstract
The hardness and microorganism contamination are common problems of water quality around the world. Capacitive deionization (CDI) is a much-discussed solution to help solve the water crisis by providing efficient water softening while killing microorganism. Carboxylic (Na) cation-exchange fiber (CCEF) is an adsorbent material with good affinity for hardness ions. Silver nanoparticles (AgNPs) is a broad-spectrum microbicide. In this paper, the CCEF modified activated carbon (CCEF-AC) was used as cathode and showed excellent hardness ion adsorption selectivity at the optimum CCEF doping level (αCa2+/Na of 15.0, αMg2+/Na of 13.5). Its electrosorption capacity of Ca2+ reached 311 μmol/g, much higher than that of the AC cathode (188 μmol/g). It also showed good regenerable performance, retaining over 85 % of Ca2+ electrosorption capacity after 50 cycles stability test. The activated carbon modified with AgNPs (AC-Ag) was used as anode. When enhanced by an electric field, it could kill bacteria and microalgae with over 99 % and 90 % inhibition rates, respectively. This work has opened up a new way to simultaneously remove multiple pollutants (organic or inorganic) from water.
Collapse
Affiliation(s)
- Zhonghao Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Can He
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jia Sha
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kaijun Xiao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Liang Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
4
|
Silva RMGD, Do Nascimento Pereira I, Camargo Zibordi L, Pereira Rosatto PA, Oliveira Granero F, Malaguti Figueiredo CC, Leopoldo Constantino CJ, da Silva Martin C, Eloizo Job A, Nicolau-Junior N, Pereira Silva L. Cytotoxic, antioxidant, and antiglycation activities, and tyrosinase inhibition using silver nanoparticles synthesized by leaf extract of Solanum aculeatissimum Jacq. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:57-76. [PMID: 37929327 DOI: 10.1080/15287394.2023.2275691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The present study aimed to determine the biological properties of an extract of Solanum aculeatissimum aqueous extract (SaCE) alone as well as silver nanoparticles (AgNPs) generated by green synthesis utilizing S. aculeatissimum aqueous extract (SaCE). These synthesized SaCE AgNPs were characterized using UV-VIS spectrophotometry, scanning transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), zeta potential (ZP), dynamic light scattering (DLS). Determination of total polyphenols, flavonoids, saponins content was conducted. In addition, high performance liquid chromatography-mass spectrometry (HPLC-MS) was employed to identify constituents in this extract. Antioxidant activity was determined by DPPH radical scavenging and ferric ion reducing power (FRAP) methods. Antiglycation activity was demonstrated through relative mobility in electrophoresis (RME) and determination of free amino groups. The inhibitory activity on tyrosinase was also examined. Molecular docking analyses were performed to assess the molecular interactions with DNA and tyrosinase. The antitumor activity SaCE was also measured. Phytochemical analysis of SaCE and AgNPs showed presence polyphenols (1000.41 and 293.37 mg gallic acid equivalent/g), flavonoids (954.87 and 479.87 mg rutin equivalent/g), saponins (37.89 and 23.01% total saponins), in particular steroidal saponins (aculeatiside A and B). Both SaCE and AgNPs exhibited significant antioxidant (respectively, 73.97%, 56.27% in DPPH test, 874.67 and 837.67 μM Trolox Equivalent/g in FRAP test) and antiglycation activities (72.81 and 67.98% free amino groups, results observed in RME). SaCE and AgNPs presented 33.2, 36.1% inhibitory activity on tyrosinase, respectively. In silico assay demonstrated interaction between steroidal saponins, DNA or tyrosinase. SaCE exhibited antitumor action against various human tumor cells. Data demonstrated that extracts SaCE alone and AgNPs synthesized from SaCE presented biological properties of interest for application in new therapeutic formulations in medicine.
Collapse
Affiliation(s)
- Regildo Márcio Gonçalves da Silva
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Isabelly Do Nascimento Pereira
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - Laura Camargo Zibordi
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - Pedro Augusto Pereira Rosatto
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | | | | | - Carlos José Leopoldo Constantino
- School of Science and Technology, Department of Physics, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Cibely da Silva Martin
- School of Science and Technology, Department of Physics, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Aldo Eloizo Job
- School of Science and Technology, Department of Physics, São Paulo State University (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Nilson Nicolau-Junior
- Laboratory of Molecular Modeling, Institute of Biotechnology, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | | |
Collapse
|
5
|
Hosseini M, Huang J, Williams MD, Gonzalez GA, Jiang X, Falkinham JO, Ducker WA. Robust and Transparent Silver Oxide Coating Fabricated at Room Temperature Kills Clostridioides difficile Spores, MRSA, and Pseudomonas aeruginosa. Microorganisms 2023; 12:83. [PMID: 38257910 PMCID: PMC10818310 DOI: 10.3390/microorganisms12010083] [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: 11/22/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Antimicrobial coatings can inhibit the transmission of infectious diseases when they provide a quick kill that is achieved long after the coating application. Here, we describe the fabrication and testing of a glass coating containing Ag2O microparticles that was prepared from sodium silicate at room temperature. The half-lives of both methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa on this coating are only 2-4 min. The half-life of Clostridioides difficile spores is about 9-12 min, which is extremely short for a spore. Additional tests on MRSA demonstrate that the coating retains its antimicrobial activity after abrasion and that an increased loading of Ag2O leads to a shorter half-life. This coating combines the properties of optical transparency, robustness, fast kill, and room temperature preparation that are highly desirable for an antimicrobial coating.
Collapse
Affiliation(s)
- Mohsen Hosseini
- Department of Chemical Engineering, Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, VA 24061, USA; (M.H.); (G.A.G.)
| | - Jinge Huang
- Department of Food, Nutrition, and Packaging Sciences, Clemson University, Clemson, SC 29634, USA; (J.H.); (X.J.)
| | - Myra D. Williams
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (M.D.W.); (J.O.F.III)
| | - Gerardo Alexander Gonzalez
- Department of Chemical Engineering, Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, VA 24061, USA; (M.H.); (G.A.G.)
| | - Xiuping Jiang
- Department of Food, Nutrition, and Packaging Sciences, Clemson University, Clemson, SC 29634, USA; (J.H.); (X.J.)
| | - Joseph O. Falkinham
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (M.D.W.); (J.O.F.III)
| | - William A. Ducker
- Department of Chemical Engineering, Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, VA 24061, USA; (M.H.); (G.A.G.)
| |
Collapse
|
6
|
Feng L, Liu Y, Chen Y, Xiang Q, Huang Y, Liu Z, Xue W, Guo R. Injectable Antibacterial Hydrogel with Asiaticoside-Loaded Liposomes and Ultrafine Silver Nanosilver Particles Promotes Healing of Burn-Infected Wounds. Adv Healthc Mater 2023; 12:e2203201. [PMID: 37195780 DOI: 10.1002/adhm.202203201] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/15/2023] [Indexed: 05/18/2023]
Abstract
Post-injury infection and wound healing are recurrent daily life problems. Therefore, the necessity of developing a biomaterial with antibacterial and wound-healing properties is paramount. Based on the special porous structure of hydrogel, this work modifies recombinant collagen and quaternary ammonium chitosan and fused them with silver nanoparticles (Ag@mental-organic framework (Ag@MOF)) with antibacterial properties, and asiaticoside-loaded liposomes (Lip@AS) with anti-inflammatory/vascularization effects to form the rColMA/QCSG/LIP@AS/Ag@MOF (RQLAg) hydrogel. The prepared hydrogel possesses good sustainable release capabilities of Ag+ and AS and exhibits concentration-dependent swelling properties, pore size, and compressive strength. Cellular experiments show that the hydrogel exhibits good cell compatibility and promote cell migration, angiogenesis, and M1 macrophage polarization. Additionally, the hydrogels exhibit excellent antibacterial activity against Escherichia coli and Staphylococcus aureus in vitro. In vivo, Sprague Dawley rats burn-wound infection model showed that the RQLAg hydrogel could efficiently promote wound healing and has stronger healing promoting abilities than those of Aquacel Ag. In summary, the RQLAg hydrogel is expected to be an excellent material for accelerating open wound healing and preventing bacterial infections.
Collapse
Affiliation(s)
- Longbao Feng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Yu Liu
- Research and Development Department, Guangzhou Beogene Biotech Co., Ltd, 510663, Guangzhou, China
| | - Yini Chen
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510663, China
| | - Qi Xiang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510663, China
| | - Yadong Huang
- Institute of Biomedicine and Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, 510663, China
| | - Zonghua Liu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| |
Collapse
|
7
|
Javed R, Ijaz S, Hameed H, Nazish M, Sharif MS, Afreen A, Alarjani KM, Elshikh MS, Mehboob S, Abdul Razak S, Waheed A, Ahmed R, Tariq M. Phytochemical-Mediated Biosynthesis of Silver Nanoparticles from Strobilanthes glutinosus: Exploring Biological Applications. MICROMACHINES 2023; 14:1372. [PMID: 37512683 PMCID: PMC10386440 DOI: 10.3390/mi14071372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/19/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023]
Abstract
The application of green synthesis for silver nanoparticles in nanomedicine has experienced significant growth. Strobilanthes glutinosus, a plant primarily located in the Himalayas, remains largely unexplored. Considering the biomedical value of S. glutinosus, phytochemicals from this plant were used for the biosynthesis of silver nanoparticles. Silver nanoparticles were synthesized from aqueous extract of root and leaves of Strobilanthes glutinosus. The synthesized silver nanoparticles were characterized using UV-Vis spectrophotometry, Fourier-transform infrared spectroscopy, transmission electron microscopy, and X-ray diffraction. Total phenolic and flavonoid contents of plants were determined and compared with nanoparticles. The biomedical efficacy of plant extracts and silver nanoparticles was assessed using antioxidant and antibacterial assays. The UV-Vis spectra of leaf- and root-extract-mediated AgNPs showed characteristic peaks at 428 nm and 429 nm, respectively. TEM images revealed the polycrystalline and spherical shapes of leaf- and root-extract-mediated AgNPs with size ranges of 15-60 nm and 20-52 nm, respectively. FTIR findings shown the involvement of phytochemicals of root and leaf extracts in the reduction of silver ions into silver nanoparticles. The crystalline face-centered cubic structure of nanoparticles is depicted by the XRD spectra of leaf and root AgNPs. The plant has an ample amount of total phenolic content (TPC) and total flavonoid content (TFC), which enhance the scavenging activity of plant samples and their respective AgNPs. Leaf and root AgNPs have also shown good antibacterial activity, which may enhance the medicinal value of AgNPs.
Collapse
Affiliation(s)
- Rabia Javed
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| | - Shumaila Ijaz
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Hajra Hameed
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| | - Moona Nazish
- Department of Botany, Rawalpindi Women University, Rawalpindi 46300, Pakistan
| | - Muhammad Shakeeb Sharif
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| | - Afshan Afreen
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| | - Khaloud Mohammed Alarjani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saadia Mehboob
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| | - Sarah Abdul Razak
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Abdul Waheed
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Rashid Ahmed
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Muhammad Tariq
- Department of Biotechnology, Mirpur University of Science and Technology, Mirpur 10250, Pakistan
| |
Collapse
|
8
|
Xing D, Cheng J, Song X. Study on modified SA-H 3BO 3 immobilization microorganism method for wastewater treatment in seawater recirculating aquaculture system. ENVIRONMENTAL RESEARCH 2023; 226:115636. [PMID: 36907339 DOI: 10.1016/j.envres.2023.115636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/19/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
The sodium alginate-H3BO3 (SA-H3BO3) is traditionally used as bioremediation method for wastewater treatment in recirculating aquaculture system. Even though this method has many advantages (e.g., high cell loading) for immobilization, the remove of ammonium is not very effective. In this study, a modified method was built by adding polyvinyl alcohol and activated carbon into SA solution, and then crosslinked with saturated H3BO3-CaCl2 solution for creating new beads. Moreover, response surface methodology was utilized for optimizing the immobilization based on Box-Behnken design. The removal rate of ammonium in 96 h was taken as the primary performance criterion to characterize the biological activity of immobilized microorganisms (i.e., Chloyella pyrenoidosa, Spirulina platensis, Nitrifying bacteria, and Photosynthetic bacteria). Based on the results, the optimal parameter of immobilization as follows: the concentration of SA was 1.46%, the concentration of polyvinyl alcohol was 0.23%, the concentration of activated carbon was 0.11%, the crosslinking time was 29.33 h, and the pH was 6.6.
Collapse
Affiliation(s)
- Daochao Xing
- Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.
| | - Jingguang Cheng
- Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xiefa Song
- College of Fisheries, Ocean University of China, Qingdao, 266003, China
| |
Collapse
|
9
|
Idris SN, Amelia TSM, Bhubalan K, Lazim AMM, Zakwan NAMA, Jamaluddin MI, Santhanam R, Amirul AAA, Vigneswari S, Ramakrishna S. The degradation of single-use plastics and commercially viable bioplastics in the environment: A review. ENVIRONMENTAL RESEARCH 2023; 231:115988. [PMID: 37105296 DOI: 10.1016/j.envres.2023.115988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Plastics have become an integral part of human life. Single-use plastics (SUPs) are disposable plastics designed to be used once then promptly discarded or recycled. This SUPs range from packaging and takeaway containers to disposable razors and hotel toiletries. Synthetic plastics, which are made of non-renewable petroleum and natural gas resources, require decades to perpetually disintegrate in nature thus contribute to plastic pollution worldwide, especially in marine environments. In response to these problems, bioplastics or bio-based and biodegradable polymers from renewable sources has been considered as an alternative. Understanding the mechanisms behind the degradation of conventional SUPs and biodegradability of their greener counterpart, bioplastics, is crucial for appropriate material selection in the future. This review aims to provide insights into the degradation or disintegration of conventional single-use plastics and the biodegradability of the different types of greener-counterparts, bioplastics, their mechanisms, and conditions. This review highlights on the biodegradation in the environments including composting systems. Here, the various types of alternative biodegradable polymers, such as bacterially biosynthesised bioplastics, natural fibre-reinforced plastics, starch-, cellulose-, lignin-, and soy-based polymers were explored. Review of past literature revealed that although bioplastics are relatively eco-friendly, their natural compositions and properties are inconsistent. Furthermore, the global plastic market for biodegradable plastics remains relatively small and require further research and commercialization efforts, especially considering the urgency of plastic and microplastic pollution as currently critical global issue. Biodegradable plastics have potential to replace conventional plastics as they show biodegradation ability under real environments, and thus intensive research on the various biodegradable plastics is needed to inform stakeholders and policy makers on the appropriate response to the gradually emerging biodegradable plastics.
Collapse
Affiliation(s)
- Siti Norliyana Idris
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Tan Suet May Amelia
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Kesaven Bhubalan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia; Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Anim Maisara Mohd Lazim
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | | | - Muhammad Imran Jamaluddin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Rameshkumar Santhanam
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Al-Ashraf Abdullah Amirul
- School of Biological Science, Universiti Sains Malaysia, Pulau Pinang, Malaysia; Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia; Malaysian Institute of Pharmaceuticals and Nutraceuticals, National Institutes of Biotechnology Malaysia, Penang, Malaysia.
| | - Sevakumaran Vigneswari
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia.
| | - Seeram Ramakrishna
- Center for Nanotechnology and Sustainability, national University of Singapore, 119260, Singapore.
| |
Collapse
|
10
|
Abd El-Ghany MN, Hamdi SA, Korany SM, Elbaz RM, Emam AN, Farahat MG. Biogenic Silver Nanoparticles Produced by Soil Rare Actinomycetes and Their Significant Effect on Aspergillus-derived mycotoxins. Microorganisms 2023; 11:microorganisms11041006. [PMID: 37110430 PMCID: PMC10142716 DOI: 10.3390/microorganisms11041006] [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: 03/04/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The current investigation addressed the green synthesis of silver nanoparticles (AgNPs) using newly isolated silver-resistant rare actinomycetes, Glutamicibacter nicotianae SNPRA1 and Leucobacter aridicollis SNPRA2, and investigated their impact on the mycotoxigenic fungi Aspergillus flavus ATCC 11498 and Aspergillus ochraceus ATCC 60532. The formation of AgNPs was evidenced by the reaction's color change to brownish and the appearance of the characteristic surface plasmon resonance. The transmission electron microscopy of biogenic AgNPs produced by G. nicotianae SNPRA1 and L. aridicollis SNPRA2 (designated Gn-AgNPs and La-AgNPs, respectively) revealed the generation of monodispersed spherical nanoparticles with average sizes of 8.48 ± 1.72 nm and 9.67 ± 2.64 nm, respectively. Furthermore, the XRD patterns reflected their crystallinity and the FTIR spectra demonstrated the presence of proteins as capping agents. Both bioinspired AgNPs exhibited a remarkable inhibitory effect on the conidial germination of the investigated mycotoxigenic fungi. The bioinspired AgNPs caused an increase in DNA and protein leakage, suggesting the disruption of membrane permeability and integrity. Interestingly, the biogenic AgNPs completely inhibited the production of total aflatoxins and ochratoxin A at concentrations less than 8 μg/mL. At the same time, cytotoxicity investigations revealed the low toxicity of the biogenic AgNPs against the human skin fibroblast (HSF) cell line. Both biogenic AgNPs exhibited feasible biocompatibility with HSF cells at concentrations up to 10 μg/mL and their IC50 values were 31.78 and 25.83 μg/mL for Gn-AgNPs and La-AgNPs, respectively. The present work sheds light on the antifungal prospect of the biogenic AgNPs produced by rare actinomycetes against mycotoxigenic fungi as promising candidates to combat mycotoxin formation in food chains at nontoxic doses.
Collapse
Affiliation(s)
- Mohamed N Abd El-Ghany
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Salwa A Hamdi
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Shereen M Korany
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Reham M Elbaz
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
- Department of Biology, Faculty of Science, University of Bisha, P.O. Box 551, Bisha 61922, Saudi Arabia
| | - Ahmed N Emam
- Refractories, Ceramics and Building Materials Department, Advanced Materials Technology & Mineral Resources Research Institute, National Research Centre (NRC), El Bohouth St., Dokki, Cairo 12622, Egypt
- Nanomedicine & Tissue Engineering Research Lab, Medical Research Centre of Excellence, National Research Centre, El Bohouth St., Dokki, Cairo 12622, Egypt
| | - Mohamed G Farahat
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Biotechnology Department, Faculty of Nanotechnology for Postgraduate Studies, Cairo University, Sheikh Zayed Branch Campus, Giza 12588, Egypt
| |
Collapse
|
11
|
Neng J, Wang Y, Zhang Y, Chen P, Yang K. MIPs-SERS Sensor Based on Ag NPs Film for Selective Detection of Enrofloxacin in Food. BIOSENSORS 2023; 13:330. [PMID: 36979542 PMCID: PMC10046510 DOI: 10.3390/bios13030330] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/25/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
The quinolone antibiotics represented by enrofloxacin (ENRO) are harmful to the ecological environment and human health due to illegal excessive use, resulting in increasing food residues and ENRO levels in the environment. To this end, we developed a MIPs-SERS method using surface-enhanced Raman spectroscopy (SERS) and molecularly imprinted polymers (MIPs) to detect ENRO in food matrices. Firstly, a layer of silver nanoparticles (Ag NPs) with the best SERS effect was synthesized on the surface of copper rods as the enhancing material by in situ reductions, and then MIPs targeting ENRO were prepared by the native polymerization reaction, and the MIPs containing template molecules wrapped on the surface of silver nanoparticle films (Ag NPs-MIPs) were obtained. Our results showed that the Ag NPs-MIPs could specifically identify ENRO from the complex environment. The minimum detection limit for ENRO was 0.25 ng/mL, and the characteristic peak intensity of ENRO was linearly correlated to the concentration with a linear range of 0.001~0.1 μg/mL. The experimental results showed that in comparison to other detection methods, the rapid detection of ENRO in food matrices using Ag NPs-MIPs as the substrate is reliable and offers a cost-effective, time-saving, highly selective, and sensitive method for detecting ENRO residues in real food samples.
Collapse
Affiliation(s)
- Jing Neng
- College of Food Science and Engineering, Zhejiang University of Technology, Huzhou 313299, China
| | - Yazhi Wang
- College of Food Science and Engineering, Zhejiang University of Technology, Huzhou 313299, China
| | - Yilong Zhang
- College of Computer Science and Engineering, Zhejiang University of Technology, Hangzhou 310027, China
| | - Peng Chen
- College of Computer Science and Engineering, Zhejiang University of Technology, Hangzhou 310027, China
| | - Kai Yang
- College of Food Science and Engineering, Zhejiang University of Technology, Huzhou 313299, China
| |
Collapse
|
12
|
Dai S, Gao Y, Duan L. Recent advances in hydrogel coatings for urinary catheters. J Appl Polym Sci 2023. [DOI: 10.1002/app.53701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Simin Dai
- Polymeric and Soft Materials Laboratory, School of Chemistry and Life Science and Advanced Institute of Materials Science Changchun University of Technology Changchun People's Republic of China
| | - Yang Gao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun People's Republic of China
| | - Lijie Duan
- Polymeric and Soft Materials Laboratory, School of Chemistry and Life Science and Advanced Institute of Materials Science Changchun University of Technology Changchun People's Republic of China
| |
Collapse
|
13
|
Manzoor Y, Hasan M, Zafar A, Dilshad M, Ahmed MM, Tariq T, Hassan SG, Hassan SG, Shaheen A, Caprioli G, Shu X. Incubating Green Synthesized Iron Oxide Nanorods for Proteomics-Derived Motif Exploration: A Fusion to Deep Learning Oncogenesis. ACS OMEGA 2022; 7:47996-48006. [PMID: 36591177 PMCID: PMC9798745 DOI: 10.1021/acsomega.2c05948] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The nanotechnological arena has revolutionized the diagnostic efficacies by investigating the protein corona. This displays provoking proficiencies in determining biomarkers and diagnostic fingerprints for early detection and advanced therapeutics. The green synthesized iron oxide nanoparticles were prepared via Withania coagulans and were well characterized using UV-visible spectroscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy, and nano-LC mass spectrophotometry. Iron oxides were rod-shaped with an average size of 17.32 nm and have crystalline properties. The as-synthesized nanotool mediated firm nano biointeraction with the proteins in treatment with nine different cancers. The resultant of the proteome series was filtered oddly that highlighted the variant proteins within the differentially expressed proteins on behalf of nano-bioinformatics. Further magnification focused on S13_N, RS15, RAB, and 14_3_3 domains and few abundant motifs that aid scanning biomarkers. The entire set of variant proteins contracting to common proteins elucidates the underlining mechanical proteins that are marginally assessed using the robotic nanotechnology. Additionally, the iron rods indirectly possess a prognostic effect in manipulating expression of proteins through a smarter route. Thereby, such biologically designed nanotools provide a dual approach for medical studies.
Collapse
Affiliation(s)
- Yasmeen Manzoor
- Department
of Biotechnology, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Murtaza Hasan
- Department
of Biotechnology, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
- College of
Chemistry and Chemical Engineering, Zhongkai
Agriculture University and Engineering Guangzhou, Guangzhou 510225, PR China
| | - Ayesha Zafar
- Department
of Biotechnology, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
- Department
of Biomedical Engineering, College of Future Technology, Peking University, Beijing 510225, PR China
| | - Momina Dilshad
- Department
of Biotechnology, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Mahmood Ahmed
- Department
of Bioinformatics, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Tuba Tariq
- Department
of Biotechnology, The Institute of Biochemistry, Biotechnology and
Bioinformatics, The Islamia University of
Bahawalpur, Bahawalpur 63100, Pakistan
| | - Shahzad Gul Hassan
- National
Institute of Cardiovascular Diseases (NICVD) Cantonment, Karachi 75510, Pakistan
| | - Shahbaz Gul Hassan
- College
of Information Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Aqeela Shaheen
- Deaprtment
of Chemistry, Govt, Sadiq College Women
University, Bahawalpur 63100, Pakistan
| | - Giovanni Caprioli
- Chemistry
Interdisciplinary Project (CHip), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, Camerino 62032, Italy
| | - Xugang Shu
- College of
Chemistry and Chemical Engineering, Zhongkai
Agriculture University and Engineering Guangzhou, Guangzhou 510225, PR China
| |
Collapse
|
14
|
Biosynthesis of silver nanoparticles for biomedical applications: A mini review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
15
|
Cytotoxicity and Genotoxicity of Biogenic Silver Nanoparticles in A549 and BEAS-2B Cell Lines. Bioinorg Chem Appl 2022; 2022:8546079. [PMID: 36193250 PMCID: PMC9525761 DOI: 10.1155/2022/8546079] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/18/2022] [Accepted: 08/26/2022] [Indexed: 01/09/2023] Open
Abstract
Introduction. Biogenic silver nanoparticles (AgNPs-GA) were successfully synthesised using Garcinia atroviridis leaf extract as a reducing agent, which has ethnopharmacological claims against various diseases including cancer. Aim of the Study. Aim of the study is to discover whether AgNPs-GA has cytotoxic and genotoxic effects on cancerous (A549) and noncancerous (BEAS-2B) human lung cells. Materials and Methods. The cytotoxicity profiles of AgNPs-GA were characterized by MTT assay, intracellular reactive oxygen species (ROS) assay, and DAPI and AOPI double staining, whilst genotoxicity was assessed using Comet Assay analysis. The level of silver ions (Ag+) and cellular uptake of AgNPs-GA were evaluated by ICP-OES and TEM analyses, respectively. Results. A significant cytotoxic effect was observed by AgNPs-GA on both A549 and BEAS-2B cell lines, with IC50 values of 20–28 μg/ml and 12–35 μg/ml, respectively. The cytotoxicity profile of AgNPs-GA was also accompanied by a pronounced increase in ROS production, DNA damage, and apoptosis. Moreover, Ag+ was also detected in cells exposed to AgNPs-GA threefold higher compared to controls. In this study, AgNPs-GA were endocytosed within lysosomes, which may direct to secondary toxicity effects including oxidative stress, impairment of the cell membrane, DNA fragmentation, and cell death. Conclusions. Taken together, novel toxicological-related mechanisms by AgNPs-GA were proposed involving the generation of ROS that causes DNA damage which led to programmed cell death in both A549 and BEAS-2B cells. Therefore, a combination of scientific assessments is constantly needed to ensure that the quality of biosynthesized nanoparticles is controlled and their safe development is promoted.
Collapse
|
16
|
Baker’s Yeast-Mediated Silver Nanoparticles: Characterisation and Antimicrobial Biogenic Tool for Suppressing Pathogenic Microbes. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-01026-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
17
|
Masimen MAA, Harun NA, Maulidiani M, Ismail WIW. Overcoming Methicillin-Resistance Staphylococcus aureus (MRSA) Using Antimicrobial Peptides-Silver Nanoparticles. Antibiotics (Basel) 2022; 11:951. [PMID: 35884205 PMCID: PMC9311968 DOI: 10.3390/antibiotics11070951] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
Antibiotics are regarded as a miracle in the medical field as it prevents disease caused by pathogenic bacteria. Since the discovery of penicillin, antibiotics have become the foundation for modern medical discoveries. However, bacteria soon became resistant to antibiotics, which puts a burden on the healthcare system. Methicillin-resistant Staphylococcus aureus (MRSA) has become one of the most prominent antibiotic-resistant bacteria in the world since 1961. MRSA primarily developed resistance to beta-lactamases antibiotics and can be easily spread in the healthcare system. Thus, alternatives to combat MRSA are urgently required. Antimicrobial peptides (AMPs), an innate host immune agent and silver nanoparticles (AgNPs), are gaining interest as alternative treatments against MRSA. Both agents have broad-spectrum properties which are suitable candidates for controlling MRSA. Although both agents can exhibit antimicrobial effects independently, the combination of both can be synergistic and complementary to each other to exhibit stronger antimicrobial activity. The combination of AMPs and AgNPs also reduces their own weaknesses as their own, which can be developed as a potential agent to combat antibiotic resistance especially towards MRSA. Thus, this review aims to discuss the potential of antimicrobial peptides and silver nanoparticles towards controlling MRSA pathogen growth.
Collapse
Affiliation(s)
- Mohammad Asyraf Adhwa Masimen
- Cell Signalling and Biotechnology Research Group (CeSBTech), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Noor Aniza Harun
- Advanced NanoMaterials (ANOMA) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - M. Maulidiani
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Wan Iryani Wan Ismail
- Cell Signalling and Biotechnology Research Group (CeSBTech), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
- Biological Security and Sustainability Research Group (BIOSES), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
| |
Collapse
|
18
|
Khlyustova A, Kirsch M, Ma X, Cheng Y, Yang R. Surfaces with Antifouling-Antimicrobial Dual Function via Immobilization of Lysozyme on Zwitterionic Polymer Thin Films. J Mater Chem B 2022; 10:2728-2739. [DOI: 10.1039/d1tb02597j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the emergence of wide-spread infectious diseases, there is a heightened need for antimicrobial and/or antifouling coatings that can be used to prevent infection and transmission in a variety...
Collapse
|
19
|
Chi Z, Weng L, Zhang X. Investigation on the interaction between Ag + and bovine hemoglobin using spectroscopic methods. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:1367-1372. [PMID: 34727821 DOI: 10.1080/10934529.2021.1999163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Silver ions (Ag+) can be released by silver nanoparticles (AgNPs) which are widely used in diverse fields. Ag+ can exist inside cells to produce cytotoxicity. This report uses spectroscopic methods to reveal the interactions between Ag+ and bovine hemoglobin (BHb). The results of the quenching rate constant (Kq) and the fluorescence lifetime detection showed that the quenching mechanism of BHb by Ag+ was static. Thermodynamic investigations indicated that Ag+ can interact with BHb with one binding site to form complex mainly through van der Waals interactions and hydrogen bonds. The UV-vis absorption and synchronous fluorescence spectra showed that Ag+ changed the conformation of BHb, which may affect protein functions. This research is favorable for understanding the molecular toxic mechanism of Ag+ in vivo.
Collapse
Affiliation(s)
- Zhenxing Chi
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Weihai, PR China
| | - Ling Weng
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Weihai, PR China
| | - Xunuo Zhang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai, Weihai, PR China
| |
Collapse
|