scholarly journals Enhanced Conductivity and Antibacterial Behavior of Cotton via the Electroless Deposition of Silver

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4731
Author(s):  
Changkun Liu ◽  
Dan Liao ◽  
Fuqing Ma ◽  
Zenan Huang ◽  
Ji’an Liu ◽  
...  
Keyword(s):  
Electroless Deposition ◽  
Deposition Time ◽  
Antibacterial Properties ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
High Antibacterial Activity ◽  
Physical And Chemical ◽  
And Staphylococcus Aureus ◽  
Enhanced Conductivity ◽  
And Chemical Properties

In this study, the surface-initiated atom transfer radical polymerization (SI-ATRP) technique and electroless deposition of silver (Ag) were used to prepare a novel multi-functional cotton (Cotton-Ag), possessing both conductive and antibacterial behaviors. It was found that the optimal electroless deposition time was 20 min for a weight gain of 40.4%. The physical and chemical properties of Cotton-Ag were investigated. It was found that Cotton-Ag was conductive and showed much lower electrical resistance, compared to the pristine cotton. The antibacterial properties of Cotton-Ag were also explored, and high antibacterial activity against both Escherichia coli and Staphylococcus aureus was observed.

scholarly journals Perspective on Intermetallics Towards Efficient Electrocatalytic Water-Splitting

2021 ◽  
Author(s):  
Carsten Walter ◽  
Prashanth W. Menezes ◽  
Matthias Driess
Keyword(s):  
Intermetallic Compounds ◽  
Water Splitting ◽  
Active Sites ◽  
Chemical Properties ◽  
High Density ◽  
Physical And Chemical Properties ◽  
Ideal Class ◽  
Physical And Chemical ◽  
Enhanced Conductivity ◽  
And Chemical Properties

Intermetallic compounds exhibit attractive electronic, physical, and chemical properties, especially in terms of a high density of active sites and enhanced conductivity, making them an ideal class of materials for...

OPTIMASI PENAMBAHAN MADU SEBAGAI ZAT ANTI BAKTERI Staphylococcus aureus, PADA PRODUK SABUN MANDI CAIR

2018 ◽  
Vol 6 (2) ◽  
pp. 52
Author(s):  
Alvera Raisa ◽  
Srikandi Srikandi ◽  
Ricson P. Hutagaol
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Agent ◽  
Antibacterial Properties ◽  
Chemical Properties ◽  
Liquid Bath ◽  
Physical And Chemical Properties ◽  
Liquid Soap ◽  
Bacterial Agent ◽  
Physical And Chemical ◽  
And Chemical Properties

Optimization of the Addition of Honey as an agent of an Anti bacterial Agent Staphylococcus aureus in Production of Shower liquid soapThe study was begun with making the basic shower liquid soap, then aditing the honey with a variety of different concentrations. In this study, the addition of honey were 0%; 2,5%; 5%; 7,5%; 10%; 12,5% and 15%. After that tested the effectiveness of antibacterial agent microbiology. Then analyzing physical and chemical properties of liquid soap in accordance with SNI 06-4085-1996. The parameters tested were pH, viscosity, and density, test quantity foam, and test preferences. Optimal concentration of the addition of honey in a liquid bath soap to be able to inhibit the growth of Staphylococcus aureus are at the level of 10%. When compared with Triclosan soap, shower liquid soap with the addition of honey 5% could compete with antibacterial properties of triclosan soap using a concentration of 0.3%. The addition of honey with various concentrations of honey affect the physical and chemical properties of liquid soap such as pH, viscosity, density, and the amount of foam.Keywords: Liquid Soap, Honey and bacteria Staphylococcus aureus   ABSTRAKPenelitian dimulai dengan melakukan pembuatan dasar sabun mandi cair, kemudian dilakukan penambahan madu dengan berbagai konsentrasi berbeda. Dalam penelitian ini dilakukan penambahan madu sampai lebih dari 5% yaitu 0%; 2,5%; 5%; 7,5%; 10%; 12,5% dan 15%. Setelah itu dilakukan uji efektifitas dari zat antibakteri secara mikrobiologi. Kemudian dilakukan analisis terhadap sifat fisika dan kimia sabun mandi cair sesuai dengan SNI 06-4085-1996.  Parameter yang diuji adalah pH, viskositas, dan berat jenis, uji banyak busa, dan uji kesukaan. Konsentrasi optimal penambahan madu pada sabun mandi cair untuk bisa menghambat pertumbuhan bakteri Staphylococcus aureus adalah pada taraf 10%. Bila dibandingkan dengan sabun Triclosan, sabun mandi cair dengan penambahan madu 5% dapat menyaingi sifat antibakteri dari sabun yang menggunakan Triclosan dengan konsentrasi 0,3%. Penambahan madu dengan berbagai konsentrasi berpengaruh kepada sifat fisika dan kimia dari sabun mandi cair seperti pH, viskositas, berat jenis, serta jumlah busa.Kata kunci :  Sabun Mandi Cair, Madu dan Bakteri Staphylococcus aureus

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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