Results 41 to 50 of about 789,731 (197)

In Vitro Antimicrobial Activities of Organic Acids and Their Derivatives on Several Species of Gram-Negative and Gram-Positive Bacteria

Molecules, 2019
The objective of this study was to determine the in vitro antimicrobial activity of several organic acids and their derivatives against Gram-positive (G+) and Gram-negative (G−) bacteria.
Lauren Kovanda, Wen Zhang, Xiaohong Wei, Jia Luo, Xixi Wu, E. Atwill, S. Vaessen, Xunde Li, Yanhong Liu   +8 more
semanticscholar   +1 more source

Heterogenetic Antigens of Gram-Positive Bacteria [PDF]

Journal of Bacteriology, 1966
Chorpenning, Frank W. (The Ohio State University, Columbus), and Matthew C. Dodd . Heterogenetic antigens of gram-positive bacteria. J. Bacteriol. 91: 1440–1445. 1966.—Soluble antigens obtained by various methods from gram-positive bacteria were used to modify erythrocytes whose ...
F W, Chorpenning, M C, Dodd
openaire   +2 more sources

RETRACTED ARTICLE: Multifunctional nanoagents for ultrasensitive imaging and photoactive killing of Gram-negative and Gram-positive bacteria

Nature Communications, 2019
Simultaneous imaging and treatment of infections remains a major challenge, with most current approaches being effective against only one specific group of bacteria or not being useful for diagnosis.
Jiali Tang, Binbin Chu, Jinhua Wang, Bin Song, Yuanyuan Su, Houyu Wang, Yao He   +6 more
semanticscholar   +1 more source

Variation in the Antimicrobial Activity of Essential Oils from Cultivars of Lavandula angustifolia and L. × intermedia

Agronomy, 2022
The antimicrobial properties of essential oil from Lavandula sp. raise hopes related to its use in phytotherapy. This study aimed to evaluate the antimicrobial activity of essential oils from cultivars of L.
Magdalena Walasek-Janusz, Agnieszka Grzegorczyk, Daniel Zalewski, Anna Malm, Sylwia Gajcy, Robert Gruszecki   +5 more
doaj   +1 more source

Bioactive Products From Plant-Endophytic Gram-Positive Bacteria

Frontiers in Microbiology, 2019
Endophytes constitute plant-colonizing microorganisms in a mutualistic symbiosis relationship. They are found in most ecosystems reducing plant crops’ biotic and abiotic stressors by stimulating immune responses, excluding plant pathogens by niche ...
M. Ek-Ramos, R. Gomez-flores, A. Orozco-Flores, C. Rodríguez-Padilla, G. González-Ochoa, P. Tamez-guerra   +5 more
semanticscholar   +1 more source

Resistance mechanisms of Gram-positive bacteria

International Journal of Medical Microbiology, 2002
The introduction and increasing use of antibiotics for antibacterial therapy has initiated a rapid development and expansion of antibiotic resistance in microorganisms, particularly in human pathogens. Additionally, a shift to an increase in number and severity of Gram-positive infections has been observed the last decades. Common to these pathogens is
openaire   +3 more sources

Assessment of the pattern of antibiotic resistance among microorganisms isolated from the culture medium prepared from hospitalized patients: A retrospective study

Journal of Family Medicine and Primary Care
Background: Antibiotic resistance has become quite a challenge in the treatment of bacterial infections in the world. Therefore, the present study was conducted with the aim of investigating the pattern of antibiotic resistance among microorganisms ...
Mohammad Ali Davarpanah, Sara Vares Vazirian   +1 more
doaj   +1 more source

Quorum Sensing of Periodontal Pathogens

Acta Stomatologica Croatica, 2015
The term ‘quorum sensing’ describes intercellular bacterial communication which regulates bacterial gene expression according to population cell density. Bacteria produce and secrete small molecules, named autoinducers, into the intercellular space.
Darije Plančak, Larisa Musić, Ivan Puhar   +2 more
doaj   +1 more source

Invitro activity of Ciprofloxacin Against Gram-negative Bacteria Isolated from Infected Patients in Indonesia.

Makara Journal of Health Research, 2016
Ciprofloxacin the third generation of the quinolone family was claimed very potent against Gram-negative and Grampositive pathogens compared to former generations.
Usman Chatib Warsa
doaj   +1 more source

New quinolones and gram-positive bacteria [PDF]

Antimicrobial Agents and Chemotherapy, 1994
The quinolone class of antibacterial agents has evolved rapidly to emerge as one of the most effective classes of drugs in the treatment of infectious diseases. While the spectra and antibacterial activities of fluoroquinolones, such as ciprofloxacin, developed in the 1980s improved to include most gramnegative bacteria, their activities against gram ...
openaire   +2 more sources