1
|
Rosero J, Pereira Dos Santos Silva A, Alves Dos Santos SC, Shigueki Yasui G. Dried storage of sperm at supra-zero temperatures: An alternative for flow cytometric analysis under field conditions. Cryobiology 2024; 115:104899. [PMID: 38663664 DOI: 10.1016/j.cryobiol.2024.104899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/15/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
In biotechnological processes such as chromosomal manipulation studies, semen has become a reference in the ploidy verification of the evaluated material. However, the use of fresh samples is limited to the use at field conditions because the analysis is performed under laboratory conditions. Thus, this study aimed to develop a simpler procedure for storing dry semen at 28 °C to reduce cold storage costs. For this, semen samples were evaluated according to established quality semen parameters, a protocol for dry, and 3 sterilization treatments of dry semen were applied to the store. The integrity of the DNA was evaluated every two months, using fresh semen, dry semen (untreated), and particles 3C to compare the peaks by flow cytometry. The results indicated that all samples evaluated before and after drying showed no significant difference in the DNA content. UV-treated semen showed a 1C peak in the histogram up to 180 days of storage and a non-significant difference (P > 0.05) from fresh control in the number of DNA particles up to 120 days and untreated only showed a 1C peak up to 120 days. The developed method may become an interesting procedure to serve as a reference peak for practical flow cytometric analysis, not only in the field of fish biology but also in biomedical and agricultural sciences. Furthermore, dried semen can become a tool for the preservation of genetic material and is a promising low-cost storage technique for biobanking.
Collapse
Affiliation(s)
- Jenyffer Rosero
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil; Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil.
| | - Amanda Pereira Dos Santos Silva
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil; Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
| | | | - George Shigueki Yasui
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil; Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
| |
Collapse
|
2
|
Castro A, Bodah BW, Neckel A, Domeneghini J, Maculan LS, Goellner E, Silva LFO. Nanoparticles in terrestrial sediments and the behavior of the spectral optics of Sentinel-3B OLCI Satellite images in a river basin of UNESCO World Cultural and Natural Heritage. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:28040-28061. [PMID: 38526712 DOI: 10.1007/s11356-024-33033-2] [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: 10/10/2023] [Accepted: 03/18/2024] [Indexed: 03/27/2024]
Abstract
The dangerous chemical elements associated with nanoparticles (NPs) and ultra-fine sediment particles in hydrological bays have the capacity to move contaminants to large oceanic regions. The general objective of this study is to quantify the major chemical elements present in NPs and ultra-fine particles in aquatic sediments sampled from Guanabara Bay and compare these data to values determined through spectral optics using the Sentinel-3B Satellite OLCI (Ocean Land Color Instrument) during the winter and summer seasons of 2018, 2019, 2020, 2021, and 2022. This is done to highlight the impacts anthropogenic environmental hazards have on the marine ecosystem and human beings. Ten aquatic sediment field collection points were selected by triangulated irregular network (TIN). Samples were subjected to analysis by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron dispersion spectroscopy (EDS), and transmission electron microscopy (TEM), which enabled a detailed analysis using scanning transmission electron microscopy (STEM). Geospatial analyses using Sentinel-3B OLCI Satellite images considered Water Full Resolution (WFR) at 300 m resolution, in neural network (NN), normalized at 0.83 µg/mg. A maximum average spectral error of 6.62% was utilized for the identification of the levels of Absorption Coefficient of Detritus and Gelbstoff (ADG443_NN) at 443 m-1, Chlorophyll-a (CHL_NN) (m-3), and Total Suspended Matter (TSM_NN) (g m-3) at 581 sample points. The results showed high levels of ADG443_NN, with average values as high as of 4444 m-1 (summer 2021). When related to the analyses of nanoparticulate sediments and ultrafine particles collected in the field, they showed the presence of major chemical elements such as Ge, As, Cr, and others, highly toxic to human health and the aquatic environment. The application of satellite and terrestrial surveys proved to be efficient, in addition to the possibility of this study being applied to other hydrological systems on a global scale.
Collapse
Affiliation(s)
- Alex Castro
- Postgraduate Program in Society, Nature and Development, Federal University of Western Pará, UFOPA, Paraná, 68040-255, Brazil
| | - Brian William Bodah
- Thaines and Bodah Center for Education and Development, 840 South Meadowlark Lane, Othello, WA, 99344, USA
- Workforce Education & Applied Baccalaureate Programs, Yakima Valley College, South 16Th Avenue & Nob Hill Boulevard, Yakima, WA, 98902, USA
| | - Alcindo Neckel
- ATITUS Educação, 304 - Passo Fundo, Passo Fundo, 99070-220, RS, Brazil.
- University of Minho, UMINHO, 4710-057, Braga, Portugal.
| | - Jennifer Domeneghini
- Postgraduate Program in Urban and Regional Planning, Federal University of Rio Grande Do Sul, UFRGS, 110 - Porto Alegre, Paraná, RS, 90040-060, Brazil
| | | | | | - Luis F O Silva
- Postgraduate Program in Society, Nature and Development, Federal University of Western Pará, UFOPA, Paraná, 68040-255, Brazil
- Department of Civil and Environmental Engineering, Universidad de La Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
- CDLAC - Data Collection Laboratory and Scientific Analysis LTDA, Nova Santa Rita, Paraná, 92480-000, Brazil
| |
Collapse
|
3
|
Kora AJ. A domestic pressure cooker mediated, facile autoclaving method for the synthesis of silver nanoparticles. MethodsX 2023; 11:102438. [PMID: 37928108 PMCID: PMC10622712 DOI: 10.1016/j.mex.2023.102438] [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: 12/22/2022] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Abstract
As an alternative to an expensive hydrothermal reactor, in the current method a domestic pressure was used for the synthesis of silver nanoparticles (Ag NP) using tree gum, kondagogu as dual functional reductant and stabilizer by autoclaving. The formation of Ag NP was evaluated with colour transformation, UV-Visible spectroscopy (UV-Vis) and transmission electron microscopy. The formation of Ag NP by gum confirmed from the developed yellow coloration of the solution and the appearance of surface plasmon resonance peak at 408 nm in the UV-Vis. The produced NP were spherical, polydisperse, particle size ranged from 2.9-17.6 nm and the average particle size was 4.5 ± 3.1 nm. The developed method is useful for demonstration, gaining hands on experience and production of metal and metal oxide NP in resource limited small laboratories, rural colleges, startups etc.•Pressure cooker serves as an easily accessible, durable, inexpensive, electricity independent hydrothermal nanoparticle production vessel.•Autoclaving serves as a facile, ecofriendly, less energy consuming, one pot, green method with dual functional role of in situ nanoparticle synthesis and sterilization.•Production of intrinsically safe and sterile nanoparticles amenable for in vivo and in vitro biomedical applications.
Collapse
Affiliation(s)
- Aruna Jyothi Kora
- National Centre for Compositional Characterisation of Materials (NCCCM), Bhabha Atomic Research Centre (BARC), ECIL PO, Hyderabad 500 062, India
- Homi Bhabha National Institute (HBNI), Anushakti Nagar, Mumbai 400 094, India
| |
Collapse
|
4
|
Santos AS, Braz BF, Sanjad P, Cruz ACR, Crapez MAC, Neumann R, Santelli RE, Keim CN. Role of indigenous microorganisms and organics in the release of iron and trace elements from sediments impacted by iron mine tailings from failed Fundão dam. ENVIRONMENTAL RESEARCH 2023; 220:115143. [PMID: 36574804 DOI: 10.1016/j.envres.2022.115143] [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: 08/17/2022] [Revised: 11/21/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
After Fundão Dam failure in 2015, most of Gualaxo do Norte River in Doce River Basin in Brazil became silted by iron mining tailings consisting mainly of fine-grained quartz, hematite, and goethite. Previous work pointed to the possibility of reductive dissolution of iron and manganese from tailings, leading to mobilization of iron, manganese and trace elements. Several microorganisms were shown to reduce Fe(III) to Fe(II) and Mn(III, IV) to Mn(II) "in vitro", but their roles in mobilization of Fe and trace elements from freshwater sediments are poorly understood. In this work, bottom sediments and water collected in Gualaxo do Norte River were used to build anoxic microcosms amended with acetate, glucose or yeast extract, in order to access if heterotrophic microorganisms, either fermenters or dissimilatory Fe reducers, could reduce Fe(III) from minerals in the sediments to soluble Fe(II), releasing trace elements. The Fe(II) concentrations were measured over time, and trace elements concentrations were evaluated at the end of the experiment. In addition, minerals and biopolymers in bottom sediments were quantified. Results showed that organic substrates, notably glucose, fuelled microbial reduction of iron minerals and release of Fe(II), Mn, Ba, Al and/or Zn from sediments. In general, higher concentrations of organic substrates elicited mobilization of larger amounts of Fe(II) and trace elements from sediments. The results point to the possibility of mobilization of huge amounts of iron and trace elements from sediments to water if excess biodegradable organic matter is released in rivers affected by iron mine tailings.
Collapse
Affiliation(s)
- Alex S Santos
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro - UFRJ, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Bernardo F Braz
- LaDA, Instituto de Química, Universidade Federal do Rio de Janeiro - UFRJ, Av. Athos da Silveira Ramos 149, Bloco A, 518, 21941-909, Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Pedro Sanjad
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro - UFRJ, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Ana Caroline R Cruz
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro - UFRJ, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Miriam A C Crapez
- Programa Dinâmica dos Oceanos e da Terra, Departamento de Geologia e Geofísica, Universidade Federal Fluminense, Av. Milton Tavares de Souza, Gragoatá, 24210-346, Niterói, RJ, Brazil
| | - Reiner Neumann
- Centre for Mineral Technology (CETEM), Avenida Pedro Calmon, 900, Cidade Universitária, 21941-908, Rio de Janeiro, RJ, Brazil; PPGeo - Postgraduate Program in Geosciences, National Museum, Universidade Federal do Rio de Janeiro, Av. Quinta da Boa Vista, S/N, São Cristóvão, 20940-040, Rio de Janeiro, RJ, Brazil
| | - Ricardo E Santelli
- LaDA, Instituto de Química, Universidade Federal do Rio de Janeiro - UFRJ, Av. Athos da Silveira Ramos 149, Bloco A, 518, 21941-909, Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Carolina N Keim
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro - UFRJ, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-902, Rio de Janeiro, RJ, Brazil.
| |
Collapse
|