5 documents found, page 1 of 1
The Pollica perspective on the (super)-conformal world
Alday, Fernando; Argyres, Philip; Lemos, Madalena; Martone, Mario; Rastelli, Leonardo; Taronna, Massimo; Mukhi, Sunil; Córdova, Lucía; He, YifeiMade available in DSpace on 2022-04-29T08:30:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-07-01; Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology; This manuscript samples a series of recent results in the quest for a systematic understanding of the space of conformal field theories, with a particular focus on theories with extended supersymmetry....
The effects of chemical and mechanical stresses on the removal of biofilms form...
Gomes, Inês Bezerra; Lemos, Madalena; Simões, Manuel; Chaves, Lúcia Conceição DiogoThe presence of biofilms in drinking water distribution systems (DWDS) is a global concern. Those are responsible for aesthetic problems in drinking water (DW) such as taste, odor and color, and can also be responsible for public health problems when pathogens are biofilm colonizers. Therefore, it is of utmost importance to use effective control strategies. The aim of this work was to understand the effects of ...
Phytochemicals against drug-resistant microbes
Simões, Manuel; Lemos, Madalena; Simões, Lúcia C.Bacteria are able to adapt to undesirable changes in nutrient availability, environmental conditions and presence of antimicrobial products, as well as to immunological defenses. Antibiotic resistant bacteria are increasingly prevalent and consequently new antimicrobials are needed to control these pathogens. Serious infections caused by bacteria that have become resistant to commonly used antibiotics have beco...
The effects of glutaraldehyde on the control of single and dual biofilms of Bac...
Simões, Lúcia C.; Lemos, Madalena; Araújo, Paula; Pereira, Ana M.; Simões, M.Glutaraldehyde (GLUT) was evaluated for control of single and dual species biofilms of Bacillus cereus and Pseudomonas fluorescens on stainless steel surfaces using a chemostat system. The biofilms were characterized in terms of mass, cell density, total and matrix proteins and polysaccharides. The control action of GLUT was assessed in terms of inactivation and removal of biofilm. Post-biocide action was chara...
Persister cells in a biofilm treated with a biocide
Simões, Lúcia C.; Lemos, Madalena; Pereira, Ana M.; Abreu, Ana C.; Saavedra, Maria J.; Simões, M.This study investigated the physiology and behaviour following treatment with ortho-phthalaldehyde (OPA), of Pseudomonas fluorescens in both the planktonic and sessile states. Steady-state biofilms and planktonic cells were collected from a bioreactor and their extracellular polymeric substances (EPS) were extracted using a method that did not destroy the cells. Cell structure and physiology after EPS extractio...