Prevalence of Listeria monocytogens in Farm Milk and Some Dairy Products with Comparing its Sensitivity to Different Antibiotics and H2O2 Loaded on Silver Nanoparticles in Dakahlia Governorate, Egypt.

2021 ◽  
Vol 68 (1) ◽  
pp. 71
Author(s):  
Amira Elsayed
Keyword(s):  
Silver Nanoparticles ◽  
Dairy Products

scholarly journals Control of Virulent Listeria monocytogenes Originating from Dairy Products and Cattle Environment Using Marine Algal Extracts, Silver Nanoparticles Thereof, and Quaternary Disinfectants

2021 ◽  
Vol Volume 14 ◽  
pp. 2721-2739
Author(s):  
Mona A El-Zamkan ◽  
Bassma A Hendy ◽  
Hassan Mahmoud Diab ◽  
Najat Marraiki ◽  
Gaber El-Saber Batiha ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Listeria Monocytogenes ◽  
Dairy Products ◽  
Marine Algal ◽  
Algal Extracts

scholarly journals Approaches to the Treatment of Diseases of Distal Limb Parts in Cattle

2021 ◽  
Vol 11 (2) ◽  
pp. 61-70
Author(s):  
A.M. Kovalenko ◽  
N.V. Yavnikov ◽  
S.A. Khomutovskaya ◽  
K.S. Sokolov ◽  
Slyusareva Yu. E ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Treatment Group ◽  
Dairy Cows ◽  
Therapeutic Efficacy ◽  
Dairy Products ◽  
Economic Damage ◽  
Control Groups ◽  
Grouping Method ◽  
Group 2 ◽  
Group 1

Mortellaro’s disease affects up to 25% of Russia's cattle, which causes significant economic damage to dairy products. The indicators of the therapeutic efficacy of existing drugs vary, and obsolete agents and schemes are used for treatment. A drug was developed and tested using the technology of liposomal silver nanoparticles (Ag) for treatment of Mortellaro’s disease in dairy cows. By comparison and grouping method, the effectiveness of 5 drug samples at different stages of development of infectious and pathological processes in 5 experimental groups of cows was compared with 2 control groups: Group 1 received no treatment, Group 2 was treated with Solka Hoofgel. It was established that sample 2 of the developed preparation with Ag content of 15 ml showed 92-96% of the therapeutic efficacy in the treatment of Mortellaro’s disease, which is higher than that of the analog preparation by 25%. The drug provides the appearance of granulation tissue in the affected areas as early as the fifth day after application to the damaged surface of the interdigital space and the epithelization of the damaged areas after 7 days of treatment.

How to Maintain a Healthy Body Weight

2006 ◽  
Vol 76 (4) ◽  
pp. 208-215 ◽  
Author(s):  
Astrup
Keyword(s):  
Physical Activity ◽  
Type 2 Diabetes ◽  
Weight Loss ◽  
Body Weight ◽  
Glycemic Index ◽  
Dairy Products ◽  
Weight Control ◽  
Healthy Body Weight ◽  
Healthy Body

The epidemic of both obesity and type 2 diabetes is due to environmental factors, but the individuals developing the conditions possess a strong genetic predisposition. Observational surveys and intervention studies have shown that excess body fatness is the major environmental cause of type 2 diabetes, and that even a minor weight loss can prevent its development in high-risk subjects. Maintenance of a healthy body weight in susceptible individuals requires 45–60 minutes physical activity daily, a fat-reduced diet with plenty of fruit, vegetables, whole grain, and lean meat and dairy products, and moderate consumption of calorie containing beverages. The use of table values to predict the glycemic index of meals is of little – if any – value, and the role of a low-glycemic index diet for body weight control is controversial. The replacement of starchy carbohydrates with protein from lean meat and lean dairy products enhances satiety, and facilitate weight control. It is possible that dairy calcium also promotes weight loss, although the mechanism of action remains unclear. A weight loss of 5–10% can be induced in almost all obese patients providing treatment is offered by a professional team consisting of a physician and dieticians or nurses trained to focus on weight loss and maintenance. Whereas increasing daily physical activity and regular exercise does not significantly effect the rate of weight loss in the induction phase, it plays an important role in the weight maintenance phase due to an impact on daily energy expenditure and also to a direct enhancement of insulin sensitivity.

Synthesis, performance and growth mechanism of silver nanoparticle coated SERS fiber probe

2019 ◽  
Vol 107 (3) ◽  
pp. 305
Author(s):  
Mengmei Geng ◽  
Yuting Long ◽  
Tongqing Liu ◽  
Zijuan Du ◽  
Hong Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectrum ◽  
Reaction Time ◽  
Growth Mechanism ◽  
Fiber Optic ◽  
Fiber Optic Probe ◽  
Visible Absorption ◽  
Fiber Probe ◽  
Surface Enhanced Raman ◽  
Optic Probe

Surface-enhanced Raman Scattering (SERS) fiber probe provides abundant interaction area between light and materials, permits detection within limited space and is especially useful for remote or in situ detection. A silver decorated SERS fiber optic probe was prepared by hydrothermal method. This method manages to accomplish the growth of silver nanoparticles and its adherence on fiber optic tip within one step, simplifying the synthetic procedure. The effects of reaction time on phase composition, surface plasmon resonance property and morphology were investigated by X-ray diffraction analysis (XRD), ultraviolet-visible absorption spectrum (UV-VIS absorption spectrum) and scanning electron microscope (SEM). The results showed that when reaction time is prolonged from 4–8 hours at 180 °C, crystals size and size distribution of silver nanoparticles increase. Furthermore, the morphology, crystal size and distribution density of silver nanoparticles evolve along with reaction time. A growth mechanism based on two factors, equilibrium between nucleation and growth, and the existence of PVP, is hypothesized. The SERS fiber probe can detect rhodamin 6G (R6G) at the concentration of 10−6 M. This SERS fiber probe exhibits promising potential in organic dye and pesticide residue detection.

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