1
|
Zhou W, Long Z, Xu C, Zhang J, Zhou X, Song X, Huo P, Guo Y, Xue W, Wang Q, Zhou C. Advances in Functionalized Biocomposites of Living Cells Combined with Metal-Organic Frameworks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14749-14765. [PMID: 38989975 DOI: 10.1021/acs.langmuir.4c00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Motivated by the remarkable innate characteristics of cells in living organisms, we have found that hybrid materials that combine bioorganisms with nanomaterials have significantly propelled advancements in industrial applications. However, the practical deployment of unmodified living entities is inherently limited due to their sensitivity to environmental fluctuations. To surmount these challenges, an efficacious strategy for the biomimetic mineralization of living organisms with nanomaterials has emerged, demonstrating extraordinary potential in biotechnology. Among them, innovative composites have been engineered by enveloping bioorganisms with a metal-organic framework (MOF) coating. This review systematically summarizes the latest developments in living cells/MOF-based composites, detailing the methodologies employed in structure fabrication and their diverse applications, such as bioentity preservation, sensing, catalysis, photoluminescence, and drug delivery. Moreover, the synergistic benefits arising from the individual compounds are elucidated. This review aspires to illuminate new prospects for fabricating living cells/MOF composites and concludes with a perspective on the prevailing challenges and impending opportunities for future research in this field.
Collapse
Affiliation(s)
- Weiqiang Zhou
- Institute of Laser and Optoelectronics Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zefeng Long
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chuan Xu
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junge Zhang
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xin Zhou
- School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xianghai Song
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Pengwei Huo
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yi Guo
- Institution of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wei Xue
- Institute of Laser and Optoelectronics Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| | - Quan Wang
- Institute of Laser and Optoelectronics Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
- School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Chen Zhou
- Institute of Laser and Optoelectronics Intelligent Manufacturing, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
2
|
Freire RVM, Coelho DMA, Maciel LG, Jesus LT, Freire RO, Dos Anjos JV, Junior SA. Luminescent Supramolecular Metallogels: Drug Loading and Eu(III) as Structural Probe. Chemistry 2024; 30:e202400680. [PMID: 38593232 DOI: 10.1002/chem.202400680] [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: 02/19/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/11/2024]
Abstract
Supramolecular metallogels combine the rheological properties of gels with the color, magnetism, and other properties of metal ions. Lanthanide ions such as Eu(III) can be valuable components of metallogels due to their fascinating luminescence. In this work, we combine Eu(III) and iminodiacetic acid (IDA) into luminescent hydrogels. We investigate the tailoring of the rheological properties of these gels by changes in their metal:ligand ratio. Further, we use the highly sensitive Eu(III) luminescence to obtain information about the chemical structure of the materials. In special, we take advantage of computational calculations to employ an indirect method for structural elucidation, in which the simulated luminescent properties of candidate structures are matched to the experimental data. With this strategy, we can propose molecular structures for different EuIDA gels. We also explore the usage of these gels for the loading of bioactive molecules such as OXA, observing that its aldose reductase activity remains present in the gel. We envision that the findings from this work could inspire the development of luminescent hydrogels with tunable rheology for applications such as 3D printing and imaging-guided drug delivery platforms. Finally, Eu(III) emission-based structural elucidation could be a powerful tool in the characterization of advanced materials.
Collapse
Affiliation(s)
- Rafael V M Freire
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
| | - Dhiego M A Coelho
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
| | - Larissa G Maciel
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
| | - Larissa T Jesus
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
- Pople Computational Chemistry Laboratory, Department of Chemistry, Federal University of Sergipe, 49107-230, São Cristóvão, SE, Brazil
| | - Ricardo O Freire
- Pople Computational Chemistry Laboratory, Department of Chemistry, Federal University of Sergipe, 49107-230, São Cristóvão, SE, Brazil
| | - Janaína V Dos Anjos
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
| | - Severino A Junior
- Department of Fundamental Chemistry, Federal University of Pernambuco, Cidade Universitária, 50740-560, Recife, Brazil
| |
Collapse
|
3
|
Liang J, Liang K. Nanobiohybrids: Synthesis strategies and environmental applications from micropollutants sensing and removal to global warming mitigation. ENVIRONMENTAL RESEARCH 2023:116317. [PMID: 37290626 DOI: 10.1016/j.envres.2023.116317] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/11/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
Micropollutants contamination and global warming are critical environmental issues that require urgent attention due to natural and anthropogenic activities posing serious threats to human health and ecosystems. However, traditional technologies (such as adsorption, precipitation, biodegradation, and membrane separation et al.) are facing challenges of low utilization efficiency of oxidants, poor selectivity, and complex in-situ monitoring operations. To address these technical bottlenecks, nanobiohybrids, synthesized by interfacing the nanomaterials and biosystems, have recently emerged as eco-friendly technologies. In this review, we summarize the synthesis approaches of nanobiohybrids and their utilization as emerging environmental technologies for addressing environmental problems. Studies demonstrate that enzymes, cells, and living plants can be integrated with a wide range of nanomaterials including reticular frameworks, semiconductor nanoparticles and single-walled carbon nanotubes. Moreover, nanobiohybrids demonstrate excellent performance for micropollutant removal, carbon dioxide conversion, and sensing of toxic metal ions and organic micropollutants. Therefore, nanobiohybrids are expected to be environmental friendly, efficient, and cost-effective techniques for addressing environmental micropollutants issues and mitigating global warming, benefiting both humans and ecosystems alike.
Collapse
Affiliation(s)
- Jieying Liang
- School of Chemical Engineering and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Kang Liang
- School of Chemical Engineering and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, NSW, 2052, Australia; Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
| |
Collapse
|
4
|
Priyanka U, Lens PNL. Enhanced production of amylase, pyruvate and phenolic compounds from glucose by light-driven Aspergillus niger-CuS nanobiohybrids. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2023; 98:602-614. [PMID: 37066082 PMCID: PMC10087041 DOI: 10.1002/jctb.7153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/29/2022] [Accepted: 06/08/2022] [Indexed: 06/19/2023]
Abstract
BACKGROUND The demand for value-added compounds such as amylase, pyruvate and phenolic compounds produced by biological methods has prompted the rapid development of advanced technologies for their enhanced production. Nanobiohybrids (NBs) make use of both the microbial properties of whole-cell microorganisms and the light-harvesting efficiency of semiconductors. Photosynthetic NBs were constructed that link the biosynthetic pathways of Aspergillus niger with CuS nanoparticles. RESULTS In this work, NB formation was confirmed by negative values of the interaction energy, i.e., 2.31 × 108 to -5.52 × 108 kJ mol-1 for CuS-Che NBs, whereas for CuS-Bio NBs the values were -2.31 × 108 to -4.62 × 108 kJ mol-1 for CuS-Bio NBs with spherical nanoparticle interaction. For CuS-Bio NBs with nanorod interaction, it ranged from -2.3 × 107 to -3.47 × 107 kJ mol-1 . Further, the morphological changes observed by scanning electron microscopy showed the presence of the elements Cu and S in the energy-dispersive X-ray spectra and the presence of CuS bonds in Fourier transform infrared spectroscopy indicate NB formation. In addition, the quenching effect in photoluminescence studies confirmed NB formation. Production yields of amylase, phenolic compounds and pyruvate amounted to 11.2 μmol L-1, 52.5 μmol L-1 and 28 nmol μL-1, respectively, in A. niger-CuS Bio NBs on the third day of incubation in the bioreactor. Moreover, A niger cells-CuS Bio NBs had amino acids and lipid yields of 6.2 mg mL-1 and 26.5 mg L-1, respectively. Furthermore, probable mechanisms for the enhanced production of amylase, pyruvate and phenolic compounds are proposed. CONCLUSION Aspergillus niger-CuS NBs were used for the production of the amylase enzyme and value-added compounds such as pyruvate and phenolic compounds. Aspergillus niger-CuS Bio NBs showed a greater efficiency compared to A. niger-CuS Che NBs as the biologically produced CuS nanoparticles had a higher compatibility with A. niger cells. © 2022 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).
Collapse
Affiliation(s)
- Uddandarao Priyanka
- Department of Microbiology and Ryan InstituteNational University of IrelandGalwayIreland
| | - Piet NL Lens
- Department of Microbiology and Ryan InstituteNational University of IrelandGalwayIreland
| |
Collapse
|
5
|
Alkas TR, Ediati R, Ersam T, Nawfa R, Purnomo AS. Fabrication of metal-organic framework Universitetet i Oslo-66 (UiO-66) and brown-rot fungus Gloeophyllum trabeum biocomposite (UiO-66@GT) and its application for reactive black 5 decolorization. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
|
6
|
Fontes AM, Oliveira C, Bargiela P, da Rocha MDGC, Geris R, da Silva AF, Gangishetty MK, Scott RWJ, Malta M. Unveiling the Surface and the Ultrastructure of Palladized Fungal Biotemplates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12961-12971. [PMID: 34714089 DOI: 10.1021/acs.langmuir.1c02023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this paper, two biosystems based on filamentous fungi and Pd nanoparticles (NPs) were synthesized and structurally characterized. In the first case, results concerning the integration and distribution of Pd-NPs on Phialomyces macrosporus revealed that nanoparticles are accumulated on the cell wall, keeping the cytoplasm isolated from abiotic particles. However, the Penicillium sp. species showed an unexpected internalization of Pd-NPs in the fungal cytosol, becoming a promising biosystem to further studies of in vivo catalytic reactions. Next, we report a new solution-based strategy to prepare palladized biohybrids through sequential reduction of Pd2+ ions over previously harvested fungus/Au-NP composites. The chemical composition and the morphology of the biohybrid surface were characterized using a combination of scanning electron microscopy, transmission electron microscopy, and photoelectron spectroscopy. The deposition of Pd0 over the fungal surface produced biohybrids with a combination of Au and Pd in the NPs. Interestingly, other chemical species such as Au+ and Pd2+ are also observed on the outermost wall of microorganisms. Finally, the application of A. niger/AuPd-NP biohybrids in the 3-methyl-2-buten-1-ol hydrogenation reaction is presented for the first time. Biohybrids with a high fraction of Pd0 are active for this catalytic reaction.
Collapse
Affiliation(s)
- Adriana M Fontes
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Camila Oliveira
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Pascal Bargiela
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Maria da G C da Rocha
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Regina Geris
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Antonio F da Silva
- Institute of Physics, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| | - Mahesh K Gangishetty
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
- Department of Chemistry and Physics, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Robert W J Scott
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
| | - Marcos Malta
- Institute of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, Bahia 40170-115, Brazil
| |
Collapse
|
7
|
Quijia CR, Alves RC, Hanck-Silva G, Galvão Frem RC, Arroyos G, Chorilli M. Metal-organic frameworks for diagnosis and therapy of infectious diseases. Crit Rev Microbiol 2021; 48:161-196. [PMID: 34432563 DOI: 10.1080/1040841x.2021.1950120] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Infectious diseases are one of the leading cause of mortality and morbidity worldwide. Metal-Organic Frameworks (MOFs), which are porous coordination materials composed of bridging organic ligands and metallic ions or clusters, exhibits great potential to be used against several pathogens, such as bacteria, viruses, fungi and protozoa. MOFs can show sustained release capability, high surface area, adjustable pore size and structural flexibility, which makes them good candidates for new therapeutic systems. This review provides a detailed summary of the biological application of MOFs, focussing on diagnosis and treatment of infectious diseases. MOFs have been reported for usage as antimicrobial agents, drug delivery systems, therapeutic composites, nanozymes and phototherapies. Furthermore, different MOF-based biosensors have also been developed to detect specific pathogens by electrochemical, fluorometric and colorimetric assays. Finally, we present limitations and perspectives in this field.
Collapse
Affiliation(s)
| | - Renata Carolina Alves
- School of Pharmaceutical Sciences, São Paulo State University, UNESP, Araraquara, Brazil
| | - Gilmar Hanck-Silva
- School of Pharmaceutical Sciences, São Paulo State University, UNESP, Araraquara, Brazil
| | | | - Guilherme Arroyos
- Institute of Chemistry, São Paulo State University, UNESP, Araraquara, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University, UNESP, Araraquara, Brazil
| |
Collapse
|
8
|
|
9
|
Sun DW, Huang L, Pu H, Ma J. Introducing reticular chemistry into agrochemistry. Chem Soc Rev 2020; 50:1070-1110. [PMID: 33236735 DOI: 10.1039/c9cs00829b] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
For survival and quality of life, human society has sought more productive, precise, and sustainable agriculture. Agrochemistry, which solves farming issues in a chemical manner, is the core engine that drives the evolution of modern agriculture. To date, agrochemistry has utilized chemical technologies in the form of pesticides, fertilizers, veterinary drugs and various functional materials to meet fundamental demands from human society, while increasing the socio-ecological consequences due to inefficient use. Thus, more useful, precise, and designable scaffolding materials are required to support sustainable agrochemistry. Reticular chemistry, which weaves molecular units into frameworks, has been applied in many fields based on two cutting-edge porous framework materials, namely metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs). With flexibility in composition, structure, and pore chemistry, MOFs and COFs have shown increasing functionalities associated with agrochemistry in the last decade, potentially introducing reticular chemistry as a highly accessible chemical toolbox into agrochemical technologies. In this critical review, we will demonstrate how reticular chemistry shapes the future of agrochemistry in the fields of farm sensing, agro-ecological preservation and reutilization, agrochemical formulations, smart indoor farming, agrobiotechnology, and beyond.
Collapse
Affiliation(s)
- Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
| | | | | | | |
Collapse
|
10
|
Three Novel Zn-Based Coordination Polymers: Synthesis, Structure, and Effective Detection of Al 3+ and S 2- Ions. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25020382. [PMID: 31963434 PMCID: PMC7024230 DOI: 10.3390/molecules25020382] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 12/04/2022]
Abstract
Three novel Zn-based coordination polymers (CPs), [Zn(MIPA)]n (1), {[Zn(MIPA)(4,4′-bipy)0.5(H2O)]·1.5H2O}n (2), and {[Zn(MIPA)(bpe)]·H2O}n (3) (MIPA = 4-methoxyisophthalic acid, 4,4′-bipy = 4,4′-bipyridine, bpe = (E)-1,2-di(pyridine-4-yl)ethane), were constructed by ligand 4-methoxyisophthalic acid under solvothermal conditions. Compound 1 features a beaded 2D-layer architecture, while compound 2 presents a 2-fold interpenetrating structure with a uninodal three-connected hcb topology. Compound 3 has a 3-fold interpenetrated four-connected dmp topology. Photoluminescence investigations of compound 2 were explored in detail, by which ions were detected, and it was observed to have the highest quenching efficiency toward Al3+ and S2− ions. The possible fluorescence quenching mechanisms of 2 toward Al3+ and S2− ions were also explored. To the best of our knowledge, this is the first potential dual-responsive luminescent probe based on a Zn(II) coordination polymer for detecting Al3+ and S2− ions via a luminescence quenching effect in ethanol.
Collapse
|
11
|
Yu HH, Chi JQ, Su ZM, Li X, Sun J, Zhou C, Hu XL, Liu Q. A water-stable terbium metal–organic framework with functionalized ligands for the detection of Fe3+ and Cr2O72− ions in water and picric acid in seawater. CrystEngComm 2020. [DOI: 10.1039/d0ce00430h] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel Tb-MOF-A was fabricated by functionalized ligands and Tb3+, which displays high fluorescence, water stability up to 21 days and rapid, cyclic, simultaneous detection of Fe3+, Cr2O72− ions in water and picric acid in seawater.
Collapse
Affiliation(s)
- Hai-Huan Yu
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- People's Republic of China
| | - Jia-Qi Chi
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
| | - Zhong-Min Su
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Xiao Li
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Jing Sun
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Chen Zhou
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Xiao-Li Hu
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- People's Republic of China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Qun Liu
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- People's Republic of China
| |
Collapse
|
12
|
da Silva Brandão M, Silva Abreu L, Geris R. Phialomyces macrosporus: Chemical Constituents, Antimicrobial Activity and Complete NMR Assignments for the 7,7'-Biphyscion. Chem Biodivers 2019; 16:e1900353. [PMID: 31329336 DOI: 10.1002/cbdv.201900353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/22/2019] [Indexed: 01/03/2023]
Abstract
Five known secondary metabolites, chrysophanol (1), 7,7'-biphyscion (2), secalonic acid D (3), mannitol (4) and trehalose (5) were isolated for the first time from the extracts of the fungus Phialomyces macrosporus. Their structures were elucidated by NMR methods (1D and 2D NMR analysis), optical activity and ESI-MS. Complete 1 H and 13 C assignments were performed for compound 2. The antimicrobial activity was evaluated by serial microdilution assay for compounds 2 and 3 and results showed that compound 3 exhibited a significant growth inhibition at concentrations of 15.6 mg/ml (S. aureus and S. choleraesius) and 0.97 mg/mL (B. subtilis), comparable to the positive control.
Collapse
Affiliation(s)
- Mauricio da Silva Brandão
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, 147 - Ondina, Salvador -, BA 40170-115, Brazil
| | - Lucas Silva Abreu
- Laboratório Multiusuário de Caracterização e Análise, Centro de Ciências da Saúde, Universidade Federal da Paraíba, Cidade Universitária, SN - Castelo Branco, João Pessoa -, PB 58051-900, Brazil
| | - Regina Geris
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, 147 - Ondina, Salvador -, BA 40170-115, Brazil
| |
Collapse
|