Preparation and Characterization of Cu-Inorganic Antibacterial Material Containing Rare Earths

2009 ◽  
Vol 79-82 ◽  
pp. 989-992 ◽  
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang ◽  
Gang Xie ◽  
Su Qiong He ◽  
Yang Dong
Keyword(s):  
Particle Size ◽  
Rare Earths ◽  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Measurement Instrument ◽  
Particle Size Measurement ◽  
Inductively Coupled ◽  
New Material ◽  
Antibacterial Material

In this study, we synthesized a new inorganic antibacterial material, of which Cu2+ was selected to be the antibacterial ion, cerous nitrate served as the additives, and the white carbon black was chosen as the carrier, which was prepared by a sol-gel method. The as-synthesized antibacterial material was characterized by inductively coupled plasma, particle size measurement instrument, scanning electron microscope and enumeration tests. The result showed that the amount of antibacterial ions and bacteriostasis rate of this new material are higher than those for the common Cu-inorganic antibacterial material without rare earths. In addition, the particle size of this material can be extended down to 20 μm with a narrow size distribution. Other advantages of this material are its loose and dispersive structure.

Study on Antibacterial Mechanism of Ag-Inorganic Antibacterial Material Containing Lanthanum

2009 ◽  
Vol 79-82 ◽  
pp. 1799-1802 ◽  
Author(s):  
Xiao Ning Tang ◽  
Bin Zhang ◽  
Gang Xie ◽  
Xue Shan Xia
Keyword(s):  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Measurement Instrument ◽  
Antibacterial Mechanism ◽  
Size Measurement ◽  
Plasma Particle ◽  
Particle Size Measurement ◽  
Inductively Coupled ◽  
Light Stability ◽  
Antibacterial Material

Inorganic antibacterial materials consist of the antibacterial ions, the additives and the carrier. In this study, we synthesized a new inorganic antibacterial material, of which Ag+ was selected to be the antibacterial ion, lanthanum nitrate served as the additives, and the white carbon black was chosen as the carrier, which was prepared by a sol-gel method. The as-synthesized antibacterial material was characterized by inductively coupled plasma, particle size measurement instrument, and enumeration tests. The result showed that this material has loose and dispersive structure, good thermal and light stability. The possible antibacterial mechanism was also proposed through all the experimental data in this study.

Synthesis and Characterization of Modified Zn-Antibacterial White Carbon Black

2010 ◽  
Vol 150-151 ◽  
pp. 522-525
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang ◽  
Tao He ◽  
Su Qiong He ◽  
Wen Rong Yao
Keyword(s):  
Carbon Black ◽  
Organic Solvent ◽  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Measurement Instrument ◽  
Sodium Dodecylbenzene Sulfonate ◽  
Good Thermal Stability ◽  
Inductively Coupled ◽  
Dodecylbenzene Sulfonate

This paper investigated the preparation and characterization of the Zn-antibacterial White Carbon Black modified by electrolyte, surfactant, and organic solvent. The sol-gel method was used to prepare the White Carbon Black carrier. Zn2+ was selected to be the antibacterial ion, and Sodium nitrite (electrolyte), Sodium dodecylbenzene sulfonate (Surfactant), Ethanol (organic solvent) was selected to be the modifiers. They were synthesized on the white carbon black carrier. These as-synthesized modified antibacterial materials were characterized by inductively coupled plasma, particle size measurement instrument and enumeration tests (Escherichia coli as experimental bacterium). The result showed that the amount of antibacterial ions and bacteriostasis rate of modified Zn-antibacterial white carbon black are higher than those for the common Zn-antibacterial white carbon black. In addition, the particle sizes of modified samples can be extended down with a narrow size distribution. Other advantage of modified Zn-antibacterial white carbon black is good thermal stability.

Preparation of Modified Cu-Antibacterial White Carbon Black by Microwave Drying

2011 ◽  
Vol 383-390 ◽  
pp. 935-940
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang
Keyword(s):  
Carbon Black ◽  
Organic Solvent ◽  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Measurement Instrument ◽  
Microwave Drying ◽  
Sodium Dodecylbenzene Sulfonate ◽  
Drying Time ◽  
Inductively Coupled ◽  
Dodecylbenzene Sulfonate

This paper investigated the synthesis and characterization of the Cu-antibacterial White Carbon Black modified by electrolyte, surfactant, and organic solvent. The sol-gel method was used to prepare the White Carbon Black carrier. Cu2+ was selected to be the antibacterial ion, and sodium nitrite (electrolyte), sodium dodecylbenzene sulfonate (surfactant), ethanol (organic solvent) was selected to be the modifiers. They were synthesized on the White Carbon Black carrier. These as-synthesized modified antibacterial materials were characterized by inductively coupled plasma, particle size measurement instrument and enumeration tests (Escherichia coli as experimental bacterium). The result showed that the amount of antibacterial ions and bacteriostasis rate of modified Cu-antibacterial White Carbon Black are higher than those of the common Cu-antibacterial White Carbon Black. In addition, the particle sizes of modified samples can be extended down to 7 µm with a narrow size distribution. Other advantages of modified Cu-antibacterial White Carbon Black are short drying time (only 5 min by microwave), good thermal and light stability.

The Mechanism of Antibacterial Activity of Copper and Cerium-Loaded White Carbon Black

2010 ◽  
Vol 150-151 ◽  
pp. 508-511 ◽  
Author(s):  
Bin Zhang ◽  
Tao He ◽  
Xiao Ning Tang ◽  
Yin Hua Xu ◽  
Liang Fu
Keyword(s):  
Escherichia Coli ◽  
Carbon Black ◽  
Inductively Coupled Plasma ◽  
Exchange Process ◽  
Sol Gel ◽  
Antibacterial Mechanism ◽  
Inductively Coupled ◽  
Ion Exchange Process ◽  
Antibacterial Material ◽  
Cerous Nitrate

This paper investigated the antibacterial mechanism of the Cu-antibacterial White Carbon Black containing cerium. The sol-gel method was used to prepare the White Carbon Black carrier. Cu2+ was selected to be the antibacterial ion, and cerous nitrate was selected to be the additive. They were synthesized on the white carbon black carrier. The structure and antibacterial mechanism of antibacterial material were characterized by inductively coupled plasma, Fourier transform infrared spectroscopy and enumeration tests (Escherichia coli as experimental bacterium). Results showed that the contents of antibacterial ions in the Cu-antibacterial white carbon black containing cerium were higher than those for the general Cu-antibacterial white carbon black (without containing cerium). Cu2+ was bound to white carbon black by ion exchange process. Bacteriostasis rate is over 99%. Furthermore, other advantages of this material are its good thermal and light stabilities.

Study on Morphological Structure and Application of Ag-La-Inorganic Antibacterial Material Dying by Microwave

2011 ◽  
Vol 383-390 ◽  
pp. 941-946
Author(s):  
Bin Zhang ◽  
Xiao Ning Tang
Keyword(s):  
Inductively Coupled Plasma ◽  
Promising Result ◽  
Sol Gel ◽  
Morphological Structure ◽  
Energy Dispersive Spectrum ◽  
Inductively Coupled ◽  
Eds Analysis ◽  
Activity Test ◽  
Antibacterial Material ◽  
Scanning Electron

This paper investigated the morphological structure and application of the Ag-La-inorganic antibacterial material. The sol-gel method was used to prepare the carrier: White Carbon Black. Silver ion was selected to be the antibacterial ion, and lanthanum nitrate was selected to be the additive. The morphological structure and application of this new inorganic antibacterial material were characterized by inductively coupled plasma (ICP), scanning electron microscope (SEM) techniques, energy dispersive spectrum (EDS) analysis, antibacterial activity test (Escherichia coli as experimental bacterium) and application experiment. Results showed that the amount of antibacterial ion of the Ag-La-inorganic antibacterial material was higher than that of the general Ag-inorganic antibacterial material. And its bacteriostasis rate was also higher than that of the general Ag-inorganic antibacterial material. Other advantages of this material are its loose and dispersive structure. In addition, this new inorganic antibacterial material showed promising result in rubber.

Analytical methods for detection and size determination of micro- and nanoscale plastic debris in water

2021 ◽  
Author(s):  
Milica Velimirovic ◽  
Jef De Wit ◽  
Griet Jacobs ◽  
Eduardo Bolea-Fernandez ◽  
Ana Rua-Ibarz ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Particle Size ◽  
Inductively Coupled Plasma ◽  
Size Determination ◽  
Plastic Debris ◽  
Inductively Coupled ◽  
Particle Size Determination ◽  
Plasma Mass Spectrometry

<p>Development of analytical methods for the characterization (particle size determination, chemical identification, and quantification) of the low µm-range microplastic (MPs; 1-10 µm) and nanoscale plastic (NPs; 1-1000 nm) debris in environmental matrices is a quickly emerging scientific field and has gained considerable attention, not only within the scientific community, but also on the part of policy makers and the general public. However, due to the limited sensitivity of the current state of the art monitoring techniques, detection of MPs and NPs in water is one of the biggest challenges for their monitoring, source identification and, ultimately, risk assessment.</p><p>As it is evident that no single method will provide all the information required for a complete characterization of MPs and NPs in water, the present work is aimed to give an overview of different complementary analytical methodologies showing considerable promise for the particle size determination, chemical identification, and quantification of MPs and NPs [1]. In addition, results of three case studies will be included to adequately address the smallest fractions in plastic debris size determination, making such approaches worthwhile to be further explored.</p><p>The first case study offers a novel method based on the use of inductively coupled plasma-mass spectrometry operated in single-event mode and relies on our previous work where for the first time ever single particle inductively coupled plasma-mass spectrometry based on carbon monitoring was successfully used for the detection, particle size characterization and particle number concentration of polystyrene MPs [2]. The second case study further explore light scattering methods, including nanoparticle tracking analysis or dynamic light scattering, for MPs and NPs particle size distribution and particle number in water. Finally, the capabilities of size exclusion chromatography in combination with online detection techniques such as UV-visible absorption spectrometry will be presented for the particle size determination of smallest fraction of NPs (1-100 nm).</p><p> </p><p>M.V. is a senior postdoctoral fellow of the Research Foundation – Flanders (FWO 12ZD120N).</p><p> </p><p>References</p><p>[1] Velimirovic M., Tirez K., Voorspoels S., Vanhaecke F. (2020) Recent developments in mass spectrometry for the characterization of micro- and nanoscale plastic debris in the environment, Analytical and Bioanalytical Chemistry, 1-9.</p><p>[2] Bolea-Fernandez E., Rua-Ibarz A., Velimirovic M., Tirez K., and Vanhaecke F. (2020) Detection of microplastics using inductively coupled plasma-mass spectrometry (ICP-MS) operated in single-event mode. Journal of Analytical Atomic Spectrometry 35, 455-460.</p>

scholarly journals Speciation of organometals using a synchronizing GC-EIMS and GC-ICPMS system for simultaneous detection

2014 ◽  
Vol 29 (6) ◽  
pp. 1132-1137 ◽  
Author(s):  
Lucia D'Ulivo ◽  
Lu Yang ◽  
Yong-Lai Feng ◽  
John Murimboh ◽  
Zoltán Mester
Keyword(s):  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Simultaneous Detection ◽  
Electron Ionization ◽  
Ionization Mass ◽  
Inductively Coupled

Accurate quantitation and characterization of organometals are successfully achieved by splitting the gas chromatography (GC) flow to both an electron ionization mass spectrometer (EIMS) and an inductively coupled plasma mass spectrometer (ICPMS).

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