Preparation and antibacterial properties of polycaprolactone/quaternized chitosan blends

2020 ◽  
Author(s):  
Anrong Zeng ◽  
Yangtao Wang ◽  
Dajun Li ◽  
Juedong Guo ◽  
Qiaowen Chen
Keyword(s):  
Antibacterial Properties ◽  
Quaternized Chitosan ◽  
Chitosan Blends

Catechol modified quaternized chitosan enhanced wet adhesive and antibacterial properties of injectable thermo-sensitive hydrogel for wound healing

2020 ◽  
Vol 249 ◽  
pp. 116826 ◽  
Author(s):  
Zhiqiang Zheng ◽  
Shaoquan Bian ◽  
Zhiqiang Li ◽  
Zhiyang Zhang ◽  
Yuan Liu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Antibacterial Properties ◽  
Quaternized Chitosan

Improved antibacterial properties of collagen I/hyaluronic acid/quaternized chitosan multilayer modified titanium coatings with both contact-killing and release-killing functions

2019 ◽  
Vol 7 (11) ◽  
pp. 1951-1961 ◽  
Author(s):  
Haiyong Ao ◽  
Shengbing Yang ◽  
Bin’en Nie ◽  
Qiming Fan ◽  
Quanchao Zhang ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Antibacterial Properties ◽  
Collagen I ◽  
Quaternized Chitosan ◽  
Titanium Coatings ◽  
Contact Killing

The HACC-based multilayer could inhibit the colonization of bacteria via contact-killing and release-killing.

Non-Woven Fibrous Materials with Antibacterial Properties Prepared by Tailored Attachment of Quaternized Chitosan to Electrospun Mats from Maleic Anhydride Copolymer

2011 ◽  
Vol 12 (1) ◽  
pp. 104-115 ◽  
Author(s):  
Milena Ignatova ◽  
Zhanina Petkova ◽  
Nevena Manolova ◽  
Nadya Markova ◽  
Iliya Rashkov
Keyword(s):  
Maleic Anhydride ◽  
Antibacterial Properties ◽  
Fibrous Materials ◽  
Quaternized Chitosan ◽  
Maleic Anhydride Copolymer

Physicochemical and antibacterial properties of surfactant mixtures with quaternized chitosan microgels

2013 ◽  
Vol 93 (2) ◽  
pp. 709-717 ◽  
Author(s):  
Kristopher E. Richardson ◽  
Zheng Xue ◽  
Yan Huang ◽  
Youngwoo Seo ◽  
Yakov Lapitsky
Keyword(s):  
Antibacterial Properties ◽  
Surfactant Mixtures ◽  
Quaternized Chitosan

Synthesis and antibacterial properties of peptidyl derivatives and cyclopeptides structurally based upon the inhibitory centre of human cystatin C. Dissociation of antiproteolytic and antibacterial effectsNote

Apmis ◽  
2000 ◽  
Vol 108 (7-8) ◽  
pp. 473-481 ◽  
Author(s):  
FRANCISZEK KASPRZYKOWSKI ◽  
CLAES SCHALEN ◽  
REGINA KASPRZYKOWSKA ◽  
BEATA JASTRZEBSKA ◽  
ANDERS GRUBB
Keyword(s):  
Cystatin C ◽  
Antibacterial Properties ◽  
Human Cystatin C ◽  
Human Cystatin

Medicinal Plants: Antibacterial Effects and Chemical Composition of Essential Oil of Foeniculum vulgare

2017 ◽  
Vol 8 (01) ◽  
Author(s):  
Azadeh Foroughi ◽  
Pouya Pournaghi ◽  
Fariba Najafi ◽  
Akram Zangeneh ◽  
Mohammad Mahdi Zangeneh ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Medicinal Plants ◽  
Essential Oil ◽  
Antibacterial Properties ◽  
Screen Test ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Resistant Bacteria ◽  
Antibacterial Effects ◽  
Foeniculum Vulgare

Medicinal plants are considered modern resources for producing agents that could act as alternatives to antibiotics in demeanor of antibiotic-resistant bacteria. The aim of the study was to evaluate the chemical composition and antibacterial activities of essential oil of Foeniculum vulgare (FV) against Pseudomonas aeruginosa and Bacillus subtilis. Gas chromatography mass spectrometry was done to specify chemical composion. As a screen test to detect antibacterial properties of the essential oil, agar disk and agar well diffusion methods were employed. Macrobroth tube test was performed to determinate MIC. The results indicated that the most substance found in FV essential oil was Trans-anethole (47.41 %), also the essential oil of FV with 0.007 g/ml concentration has prevented P. aeruginosa and with 0.002 g/ml concentration has prevented B. subtilis from the growth. Thus, the research represents the antibacterial effects of the medical herb on test P. aeruginosa and B. subtilis. We believe that the article provide support to the antibacterial properties of the essential oil. The results indicate the fact that the essential oil from the plant can be useful as medicinal or preservatives composition.

NEUTRALIZATION OF THE ANTICOAGULANT ACTIVITY OF HEPARIN BY CONJUGATES QUATERNIZED CHITOSAN WITH GALLIC ACID

2018 ◽  
Vol 2 (3) ◽  
pp. 7-12
Author(s):  
N.N. Drozd ◽  
◽  
A.P. Lun'kov ◽  
A.V. Il'ina ◽  
V.P. Varlamov ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Anticoagulant Activity ◽  
Quaternized Chitosan

Garlic Extract (Allium sativum L.) Effectively Inhibits Staphylococcus aureus and Escherichia coli by Invitro Test

2020 ◽  
Vol 2 (2) ◽  
pp. 61-68
Author(s):  
Agnina Listya Anggraini ◽  
Ratih Dewi Dwiyanti ◽  
Anny Thuraidah
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Bacterial Infections ◽  
Allium Sativum ◽  
Antibacterial Properties ◽  
Herbal Medicines ◽  
Garlic Extract ◽  
Dilution Method ◽  
Initial Stage

Infection is a disease caused by the presence of pathogenic microbes, including Staphylococcus aureus and Escherichia coli. Garlic (Allium sativum L.) has chemical contents such as allicin, alkaloids, flavonoids, saponins, tannins, and steroids, which can function as an antibacterial against Staphylococcus aureus and Escherichia coli. This study aims to determine the antibacterial properties of garlic extract powder against Staphylococcus aureus and Escherichia coli. This research is the initial stage of the development of herbal medicines to treat Staphylococcus aureus and Escherichia coli infections. The antibacterial activity test was carried out by the liquid dilution method. The concentrations used were 30 mg/mL, 40 mg/mL, 50 mg/mL, 60 mg/mL and 70 mg/mL. The results showed that the Minimum Inhibitory Concentration (MIC) against Staphylococcus aureus and Escherichia coli was 40 mg/mL and 50 mg / mL. Minimum Bactericidal Concentration (MBC) results for Staphylococcus aureus and Escherichia coli are 50 mg/mL and 70 mg/mL. Based on the Simple Linear Regression test, the R2 value of Staphylococcus aureus and Escherichia coli is 0.545 and 0.785, so it can be concluded that there is an effect of garlic extract powder on the growth of Staphylococcus aureus and Escherichia coli by 54.5% and 78.5%. Garlic (Allium sativum L.) extract powder has potential as herbal medicine against bacterial infections but requires further research to determine its effect in vivo.

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