A5023414754- Electrochemical sensors and biosensors
- Vector-borne infectious diseases
- Advanced Chemical Sensor Technologies
- Vector-Borne Animal Diseases
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Image Processing Techniques and Applications
- Biosensors and Analytical Detection
- Advanced Biosensing Techniques and Applications
- Gas Sensing Nanomaterials and Sensors
- Microfluidic and Capillary Electrophoresis Applications
- Viral Infections and Vectors
- Identification and Quantification in Food
- Cell Image Analysis Techniques
- Essential Oils and Antimicrobial Activity
- Infant Nutrition and Health
- Cervical Cancer and HPV Research
- Brucella: diagnosis, epidemiology, treatment
- Bee Products Chemical Analysis
- Innovative Microfluidic and Catalytic Techniques Innovation
- Digital Imaging for Blood Diseases
- Enterobacteriaceae and Cronobacter Research
- Monoclonal and Polyclonal Antibodies Research
- Galectins and Cancer Biology
- Reproductive tract infections research
Universidade Estadual Paulista (Unesp)
2019-2024
Universidade de São Paulo
2010-2022
This work demonstrates the application of an electronic nose (e-nose) for discrimination between authentic and adulterated honey. The developed e-nose is based on electrodes covered with ionogel (ionic liquid + gelatin Fe3O4 nanoparticle) films. Authentic honey samples were submitted to analysis, capacity sensors was evaluated using principal component analysis (PCA) average relative response data. From PCA biplot, it possible note two well-defined clusters no intersection observed. To...
Coxiella burnetii, the zoonotic agent of Q fever, has a worldwide distribution. Despite vast information about circulating genotypes in Europe and North America, there is lack data regarding C. burnetii strains South America. Here, we show presence novel multispacer sequence typing (MST) two clusters detected Brazil Argentina that seem to be distant parenthood. Argentinian isolated from tick belongs new phylogenetic branch Brazilians may related MST 20 61. Multilocus variable number tandem...
Q fever is an important zoonosis, yet it often neglected and can present large outbreaks, as observed in the Netherlands. In past few years, cases of have been described Brazil; however, epidemiological situation ruminants, main reservoir pathogen, unknown this country. Our study aimed to estimate prevalence C. burnetii cattle sent slaughterhouses using immunofluorescence assay (IFA) quantitative real-time PCR (qPCR). From 1515 serum samples collected from nine slaughterhouses, 23.8%...
Abstract Coxiella burnetii is a zoonotic pathogen with worldwide distribution that responsible for Q fever in humans. It highly infectious bacterium can be transmitted from cattle to humans through the consumption of unpasteurized milk. We report molecular identification C. raw cow's milk being sold directly human Brazil without official inspection or pasteurization. One hundred and twelve samples were analysed by real‐time quantitative PCR (qPCR), was detected 3.57% (4/112) at concentration...
Bovine brucellosis is an infectious illness caused mainly by Brucella abortus that may affect domestic and wild animals. Accurate fast diagnosis critical for disease control eradication. Thus, we have identified antibodies in bovine serum exploring the agglutination process carried out when positive samples are mixed with antigen. In this case, placed above on-chip integrated waveguide, reaction led to scattering spots indicated serum. The monitoring was performed through optical images over...
Evaluation concerning the presence of bacteria in meat products is mandatory for commercializing these goods. Although food detection based on microbiological methods, assays are usually laborious and time-consuming. In this paper, an electronic nose used to differentiate
In this communication we describe the application of a conductive polymer gas sensor as an air pressure sensor. The device consists thin doped poly(4'-hexyloxy-2,5-biphenylene ethylene) (PHBPE) film deposited on interdigitated metallic electrode. is cheap, easy to fabricate, lasts for several months, and suitable measuring pressures in range between 100 700 mmHg.
Breastfeeding is fundamental for the development and protection of newborn, microorganisms present in breast milk are associated with infant’s intestinal microbiota. However, there factors that interfere breastfeeding, resulting need to supply donated banks these children. Even though a restriction on medications prescribed pregnant breastfeeding women, some antimicrobials accepted, as long they used correctly can increase selection pressure resistant bacteria. The from human bank were...
Characterizing electrodes surface is a mandatory step in developing any electrochemical methodology, especially when electrode modification performed. One or two techniques are often used, and their results evaluated separately, leading to the loss of valuable information. Principal Component Analysis (PCA) presented as an appealing strategy optimize characterization modified-electrode’s surface. The developed was applied for glassy carbon (GC) modified with reduced graphene oxide (GC/RGO),...
Although
We propose a new SERS substrate based on Co 3 O 4 -Ag nanocomposite and employ it to detect two different chemical species. Multivariate analysis is then used individually identify the presence of each
We propose images processing recorded with a waveguide sensor of an immunological test based on antigen-antibody reaction. Machine Learning combining optical detection identifies bovine brucellosis antibodies and can be useful for other immunoassays.
Em complemento à série de artigos relacionada a nanopartículas metálicas aplicadas em plasmônica, o objetivo desta revisão é transcorrer sobre os principais fatores que influenciam no processo obtenção desse tipo material. Dessa forma, artigo se divide duas partes principais: 1) Mecanismo, dado uma ideia geral respeito da evolução dos conceitos envolvidos nas etapas nucleação e crescimento metálicas, assim como, discussão parâmetros favorecem controle reação por via cinética ou...