Academic literature on the topic 'Bactéries – Fluorescence'
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Journal articles on the topic "Bactéries – Fluorescence"
Coomans, August, Myriam Claeys, and Tom T. M. Vandekerckhove. "Transovarial transmission of symbionts in Xiphinema brevicollum (Nematoda: Longidoridae)." Nematology 2, no. 4 (2000): 443–49. http://dx.doi.org/10.1163/156854100509303.
Full textFreitas, S. S., and C. I. Aguilar Vildoso. "Rizobactérias e promoção do crescimento de plantas cítricas." Revista Brasileira de Ciência do Solo 28, no. 6 (December 2004): 987–94. http://dx.doi.org/10.1590/s0100-06832004000600007.
Full textDias, Francisca E. F., Caris M. Nunes, Tânia V. Cavalcante, Helciléia D. Santos, Silvia Minharro, and José F. Garcia. "PCR Multiplex fluorescente para detecção de bactérias em sêmen bovino." Pesquisa Veterinária Brasileira 32, no. 3 (March 2012): 211–16. http://dx.doi.org/10.1590/s0100-736x2012000300005.
Full textVolk, C., C. Renner, and J. C. Joret. "La mesure du CODB : un index du potentiel de reviviscence bactérienne des eaux." Revue des sciences de l'eau 5 (April 12, 2005): 189–205. http://dx.doi.org/10.7202/705160ar.
Full textServais, P., S. Becquevort, and F. Vandevelde. "Comparaison de deux méthodes d'estimation du broutage des bactéries par les protozoaires en milieux aquatiques [Courte note]." Revue des sciences de l'eau 11, no. 4 (April 12, 2005): 631–39. http://dx.doi.org/10.7202/705325ar.
Full textAraújo, Juliana Calábria de, Ana Paula Campos, Marcos Messias de Souza Correa, Eduardo Carvalho Silva, Marcos Von Sperling, and Carlos Augusto de Lemos Chernicharo. "Enriquecimento de bactérias anaeróbias oxidadoras de amônia - anammox." Engenharia Sanitaria e Ambiental 15, no. 2 (June 2010): 205–12. http://dx.doi.org/10.1590/s1413-41522010000200013.
Full textCoelho, Luciana Fontes, Sueli dos Santos Freitas, Arlete Marchi Tavares de Melo, and Gláucia Maria Bovi Ambrosano. "Interação de bactérias fluorescentes do gênero Pseudomonas e de Bacillus spp. com a rizosfera de diferentes plantas." Revista Brasileira de Ciência do Solo 31, no. 6 (December 2007): 1413–20. http://dx.doi.org/10.1590/s0100-06832007000600018.
Full textSilva Júnior, T. A. F., L. O. S. Beriam, S. M. Azevedo, R. Gioria, I. M. G. Almeida, and A. C. Maringoni. "OCORRÊNCIA DE PSEUDOMONAS CICHORII EM TOMATEIRO NO ESTADO DE SÃO PAULO." Arquivos do Instituto Biológico 76, no. 2 (June 2009): 285–90. http://dx.doi.org/10.1590/1808-1657v76p2852009.
Full textDias, Francisca Elda Ferreira, Sérgio Morais Aoki, Lígia Garcia Mesquita, Caris Maroni Nunes, and José Fernando Garcia. "Detecção de Leptospira pomona em sêmen bovino por eletroforese capilar fluorescente." Brazilian Journal of Veterinary Research and Animal Science 43, no. 3 (June 1, 2006): 394. http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2006.26488.
Full textAraujo, Juliana Calabria de, Ana Paula Campos, Eduardo Carvalho Silva, Renata Côrtes de Oliveira, and Carlos Augusto de Lemos Chernicharo. "Comparação de métodos para quantificação de bactérias nitrificantes." Engenharia Sanitaria e Ambiental 23, no. 2 (March 5, 2018): 299–305. http://dx.doi.org/10.1590/s1413-41522018101256.
Full textDissertations / Theses on the topic "Bactéries – Fluorescence"
Agban, Amégninou. "Synthèse de substrats chromogéniques et fluorogéniques pour l'identification des bactéries." Université Joseph Fourier (Grenoble), 1989. http://www.theses.fr/1989GRE19003.
Full textMorán, Cruz Gabriela. "Luminescent surfaces to fight or detect bacteria." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS214/document.
Full textInfectious diseases have recessed during the 20th century thanks to antibiotics. However, some bacterial strains like Staphylococcus aureus or Pseudomonas aeruginosa have become (multi)resistant to antibiotic treatments because of overuse. One way to combat this is to reduce consumption of drugs or to better target those that will eliminate a given strain. We wish to develop sensitive surfaces and devices for the early and rapid detection of pathogenic bacteria in fluids. They will help limit contaminations and the use of drugs. The project gathers 3 partners working in synergy because they combine expertise in physical-chemistry, synthetic chemistry and microbiology. Fluorescent nanoobjects that are biocompatible and sensitive to bacterial growth will be immobilized on glass surfaces. They will be selective for pathogenic bacteria by post-synthetic modifications. The final goal is to build miniaturized sensitive devices that can detect pathogens and further test their resistance to antibiotics
Foriel, Julien. "Application du rayonnement synchrotron à l'étude des microfossiles et de l'environnement archéen." Paris 7, 2004. http://www.theses.fr/2004PA077073.
Full textFilion, Geneviève. "Détection rapide de spores de Bacillus par hybridation in situ en fluorescence." Master's thesis, Université Laval, 2008. http://hdl.handle.net/20.500.11794/20077.
Full textHoule, Olivier. "BIOAEROSOL MONITORING USING FLUORESCENCE-INDUCING LIDAR: The Effect of the Age of Bacteria on their Fluorescing Properties." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27560/27560.pdf.
Full textKamecki-Duriez, Luce. "Développement d'un nouveau test de détection par fluorimétrie des bactéries sulfato-réductrices du genre Desulfovibrio : évaluation en laboratoire des moyens de lutte chimique contre l'activité de ces bactéries en biocorrosion." Compiègne, 1989. http://www.theses.fr/1989COMPD184.
Full textPrudent, Elsa. "Applications de l'hybridation in situ en fluorescence et stratégies moléculaires pour le diagnostic des infections bactériennes." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0253/document.
Full textWe applied FISH methods to the study of three intracellular pathogenic bacteria. The viability of Bartonella henselae was evaluated in a large series of lymph nodes from patients with cat scratch disease (CSD). The results obtained, associated with sterile cultures and negative histological analyzes and FISH, as well as the low level of RNA detected by molecular biology, provide evidence that B. henselae are not or are rarely viable in the lymph nodes of patients with CSD. Tropheryma whipplei has been identified by FISH in macrophages from one lymph node and for the first time in a pulmonary biopsy, confirming the diagnosis of infection. Two methods of FISH have been tested to detect Coxiella burnetii in cases of endocarditis and vascular infections using oligonucleotide and PNA probes. The results attested to the greater efficiency of PNA probes, and demonstrated that FISH were applicable for the diagnosis of C. burnetii endocarditis. We also evaluated the molecular strategies used for syndrome-driven diagnosis of infectious diseases. Although conventional broad-spectrum PCR allows for the identification of fastidious and anaerobic microorganisms, real-time specific PCR reveals a significant superiority in syndrome-driven diagnosis. The addition of specific PCRs in real time PCR would improve our molecular strategies, for example, in the case of the detection of Staphylococcus aureus for the diagnosis of lymphadenopathy. In conclusion, this work demonstrates the effectiveness and applicability of FISH for the identification of intracellular bacteria. This method can be used as an important complementary tool to the improvement of clinical microbiological diagnosis
Tian, Yayang. "Elaboration of New Layer by Layer (LbL) Fluorescent thin films and their functionalization for the sensitive detection of bacteria." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLN029/document.
Full textAntibiotics have been used for the treatment of bacterial infections for over 70 years, saving millions of lives. The current antibiotic resistance crisis has been attributed to the overuse and misuse of these medications. Therefore, the prevention of infection transmission by the rapid and sensitive detection of antibiotic resistant strains is needed in managing this crisis. Fluorescent polymers show great potential for bacteria detection, because they are easy to functionalize, reproduce and graft. Compared with the methods used for bacterial detection in liquid, bacterial detection on a film surface is more convenient, easier to handle and is applied in devices that can be easily reused. The goal of my PhD work is to develop fluorescent and sensitive nanostructured polymer films on surfaces for bacterial detection. Three types of BODIPY-based fluorescent polyelectrolytes (FPC) with different features were synthetized based on reversible addition-fragmentation transfer (RAFT) polymerization: relatively Short chains and Weak polyelectrolytes (SW FPC), Short chains and Strong polyelectrolytes (SS FPCs) and Long chains and Weak polyelectrolytes (LW FPCs). FPC LbL films were fabricated on activated glass slides by means of electrostatic attraction. The photophysical and surface properties of FPC LbL fims were easily controlled by adjusting the deposition conditions.The following step aimed at increasing the films’ sensitivity by using the metal-enhanced fluorescence (MEF) principle. A MEF based LbL film was prepared and tested for bacteria detection. Spherical gold nanoparticles (Au NPs) were synthesized and coated with poly(allylamine hydrochloride) (PAH). The LW FPC- was selected as the fluorescent layer. Different films containing Au NPs and LW FPC- were fabricated and the distance between the Au NPs and LW FPC- was adjusted by changing the numbers of layers with two oppositely charged polymers (PC+ and PC-). Both Au NPs/4 layers PCs/LWFPC- and Au NPs/8 layers PCs/LWFPC- surfaces indicated that E. coli can be detected by LW FPC-.The selectivity of LbL films was added by introducing an antibody on the surface of the film to provide specific recognition of a chosen bacterial strain. This LbL surface achieved a rapid, effective and specific detection of E. coli bacteria. The polyanion and polycation with a 4-dibenzocyclooctynol (DIBO) functional group were assembled on the activated glass slides and an anti-E. coli antibody containing an azide group was efficiently introduced on the surface in a single step based on the azide-alkyne cycloadditions (SPAAC) reaction. The number of E. coli captured on the surface was shown to be dependent on the amount of antibody on the surface. The anti-E. coli antibody surface showed significant selectivity for E. coli, compared with B. subtilis. An alternative approach is to detect bacterial growth on thin LbL film by introducing pH sensitive fluorophore (fluorescein). The growth of bacteria is often associated with a decrease in pH of the growth medium due to a release of acidic metabolites. Different types of pH sensitive LbL film were prepared and tested for the detection of bacterial growth. Firstly, the synthesis of different functionalized polyanions (short and long chain of DIBO-PC- and red fluorescent polymer) was carried out. Three types of pH sensitive surfaces containing fluorescein (DIBO-SWPC-/fluorescein, DIBO-LW PC-/fluorescein and ratiometric RFPC-/fluorescein surfaces) were prepared based on the combination of LbL assembly and copper-free click chemistry. Finally, three pH sensitive surfaces were studied for bacteria growth detection. All the surfaces were shown to be biocompatible, the number of E. coli increased after several hours of incubation on each surface, as detected by brightfield microscopy imaging. The application for the fluorophore-dependent detection of bacterial growth remains to be developed
Morisset, Dany. "Etude des relations structure / fonction d'une bactériocine anti-listeria, la mésentéricine Y105." Phd thesis, Université de Poitiers, 2003. http://tel.archives-ouvertes.fr/tel-00558243.
Full textGaval, Gilberte. "Influence des carences en oxygène sur la prolifération des bactéries filamenteuses en boues activées." Paris 11, 2001. http://www.theses.fr/2001PA112269.
Full textTwenty five percent of french suffer from activated sludge bulking. It induces an excessive growth of filamentous bacteria and can cause severe damages to the environment. In a first part, the influence of oxygen deficiencies on filamentous bacteria proliferation has been studied in wastewater treatment pilots plants. A sole period of oxygen deficiency only induces weak growth of filaments such as S. Natans, Thiothrix sp, Eikelboom type 021N or N. Limicola-like microorganisms. Accumulate stress periods seems to have a great impact on the filamentous bacteria proliferation. Repetition of identical stresses causes an amplification of filamentous bacteria response. The latter depends on stresses intensity, stresses application frequency and stresses number. Accumulate oxygen deficiencies led to the bulking of S. Natans and important developments of Thiothrix sp and Eikelboom type 021N. The second part deals with morphological transition of the bacterium Sphaerotilus. .
Conference papers on the topic "Bactéries – Fluorescence"
V R, CARVALHO, CINTRA A M, MACHADO V D, and SOUZA-NETO J A. "Hibridização Fluorescente in situ (Fish) para a Localização de Bactérias em Tecidos de aedes aegypti." In Encontro de Pós-graduação da Faculdade de Medicina de Botucatu. Editora Scienza, 2020. http://dx.doi.org/10.26626/978-65-5668-019-4c029.
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