Vesicle formation of single-chain amphiphilic 4-dodecylbenzene sulfonic acid in water and micelle-to-vesicle transition induced by wet–dry cycles

Soft Matter ◽  
2021 ◽  
Author(s):  
Meihua Gao ◽  
Na Du ◽  
Zhiyin Yao ◽  
Ying Li ◽  
Nan Chen ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Aggregation Behavior ◽  
Vesicle Formation ◽  
Single Chain ◽  
Multilamellar Vesicle ◽  
Dodecylbenzene Sulfonic Acid

Aggregation behavior of DBSA, in water was investigated, showing a concentration-driven micelle-to-vesicle transition. Interestingly, wet–dry cycles can induce micelle-to-vesicle transition and multilamellar vesicle formation.

Spontaneous vesicle formation and vesicle-to-α-gel transition in aqueous mixtures of sodium monododecylphosphate and guanidinium salts

Soft Matter ◽  
2021 ◽  
Author(s):  
Meihua Gao ◽  
Na Du ◽  
Zhiyin Yao ◽  
Ying Li ◽  
Nan Chen ◽  
...  
Keyword(s):  
Weak Acid ◽  
Aggregation Behavior ◽  
Vesicle Formation ◽  
Acid Salt ◽  
Aqueous Mixtures ◽  
Single Chain ◽  
Gel Transition ◽  
Guanidinium Salts

Monoalkyl phosphates (MAPs) are one kind of important single-chain weak acid/salt type surfactants, but the understanding of their aggregation behavior in water is very limited due to their insolubility at...

Effectiveness of Commercial Disinfectants for Inactivating Hepatitis A Virus on Agri-Food Surfaces

2003 ◽  
Vol 66 (1) ◽  
pp. 115-119 ◽  
Author(s):  
J. JEAN ◽  
J.-F. VACHON ◽  
O. MORONI ◽  
A. DARVEAU ◽  
I. KUKAVICA-IBRULJ ◽  
...  
Keyword(s):  
Active Ingredient ◽  
Quaternary Ammonium ◽  
High Density Polyethylene ◽  
Contact Time ◽  
Sulfonic Acid ◽  
Hepatitis A ◽  
Incubation Temperature ◽  
Hepatitis A Virus ◽  
Dodecylbenzene Sulfonic Acid ◽  
High Concentrations

Six commercial disinfectants were tested for their efficacy in inactivating hepatitis A virus in solution or attached to agri-food surfaces. Disinfectant I contains 10% quaternary ammonium plus 5% glutaraldehyde;disinfectant II contains 12% sodium hypochlorite; disinfectant III contains 2.9% dodecylbenzene sulfonic acid plus 16% phosphoric acid; disinfectant IV contains 10% quaternary ammonium; disinfectant V contains 2% iodide; and disinfectant VI contains 2% stabilized chlorine dioxide. Among these, disinfectants I and II were shown to be the most effective in inactivating hepatitis A virus in solution. The efficacy of these disinfectants was further tested against hepatitis A virus attached to common agri-food surfaces, including polyvinyl chlorine, high-density polyethylene, aluminum, stainless steel, and copper. Disinfectant II was shown to be the most effective, with a maximum inactivation level of about 3 log10. The inactivation efficacy was shown to be affected by the concentration of the active ingredient, the contact time between the disinfectant and the contaminated surfaces, and the incubation temperature. In general, hepatitis A virus was shown to be highly resistant to most disinfectants tested, and high concentrations of active ingredient were needed to achieve acceptable inactivation levels.

scholarly journals In-situ polymerization of EDOT in water/methanol with different DBSA contents

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Chia-Fu Chen ◽  
Chi-an Dai ◽  
Wen-Yen Chiu
Keyword(s):  
Spin Coating ◽  
Sulfonic Acid ◽  
In Situ Polymerization ◽  
Smooth Surfaces ◽  
Water Mixture ◽  
Degradation Temperature ◽  
Morphology Of Films ◽  
Dodecylbenzene Sulfonic Acid

AbstractIn this work, poly(3-ethylenedioxythiophene) (PEDOT) was synthesized on glass by spin coating for 10 seconds at 500 rpm and polymerization was carried out in an oven at 110°C for 10 min. Methanol and water mixture were used as the solvent and dodecylbenzene sulfonic acid (DBSA) as the surfactant. The conductivities of films were measured and their relationship with different solvent or various surfactant contents were discussed. The morphology of films was observed by SEM, and PEDOT synthesized in methanol-rich solvents or with less DBSA content had more smooth surfaces, showed lower degradation temperature (by TGA). Also, PEDOT synthesized in methanol-rich solvents or with less DBSA were doped better, as observed by UV-Vis spectra.

Hydrogen Bonding Effects on the Electrical Properties and Phase Morphology of Polyaniline Blends

2005 ◽  
Vol 13 (4) ◽  
pp. 415-423
Author(s):  
Pan Wei ◽  
Yang Shenglin ◽  
Li Guang ◽  
Jiang Jianming
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Bonding ◽  
Electrical Properties ◽  
Cluster Size ◽  
Sulfonic Acid ◽  
Carbonyl Groups ◽  
Solution Cast ◽  
Doped Polyaniline ◽  
Dodecylbenzene Sulfonic Acid ◽  
Polyacrylonitrile Copolymer

Blends of dodecylbenzene sulfonic acid-doped polyaniline (PANI-DBSA) with either polyacrylonitrile copolymer (PAN) or polystyrene (PS) were solution cast. The investigation focused on the interaction between the components, the morphology and the resulting electrical conductivity of blends. The results showed that with the same PANI-DBSA content the conductivity of PANI-DBSA/PAN was higher than that of PANI-DBSA/PS. PANI-DBSA was dispersed uniformly in the PAN matrix and its cluster size was rather smaller than in the PS matrix. This is attributed to hydrogen bonding between the carbonyl groups in PAN and the imine groups in PANI, which should lead to better compatibility between PANI-DBSA and PAN.

Amino-functionalized single-chain bolalipids: Synthesis and aggregation behavior of new basic building blocks

2010 ◽  
Vol 150 (1-3) ◽  
pp. 136-143 ◽  
Author(s):  
Simon Drescher ◽  
Gesche Graf ◽  
Gerd Hause ◽  
Bodo Dobner ◽  
Annette Meister
Keyword(s):  
Building Blocks ◽  
Aggregation Behavior ◽  
Single Chain

scholarly journals Mesomorphic Phase Behavior in Comb-like Polymer- Surfactant Complex

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Isamu Akiba ◽  
Hiroyasu Masunaga ◽  
Shouichi Murata ◽  
Kanako Sasaki
Keyword(s):  
Optical Anisotropy ◽  
Sulfonic Acid ◽  
Room Temperature ◽  
Ethyl Acrylate ◽  
Lamellar Phase ◽  
Surfactant Complex ◽  
Lamellar Morphology ◽  
Dodecylbenzene Sulfonic Acid ◽  
The Individual ◽  
Polymer Surfactant

AbstractIt was found that a comb-like complex consisting of poly[2-(N,Ndimethylamino) ethyl acrylate] (PDAEA) and p-dodecylbenzene sulfonic acid (DBSA) formed mesomorphically ordered lamellar phase at room temperature where PDAEA and DBSA are in molten state. The lamellar phase shows optical anisotropy, although the individual components are always isotropic. In addition it is found that the optical anisotropy of the PDAEA-DBSA complex completely disappears with accompanying order-disorder transition of the lamellar morphology with elevating temperature.

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