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Article
The preliminary study of hydration of polyuridylic acid (poly-U) by FT-IR
The FT-IR spectroscopy in the 4000 to 800cm−1 region at 22°C has been used to investigate the hydration process of poly-U at static equilibrium. From the changes of infrared intensity and shift of infrared freque...
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Article
Fourier transform infrared study on the hydration of polycytidylic acid (poly C)
The Fourier transform infrared spectra and subtraction spectra of poly C film in the 4000 to 800 cm−1 region at 22°C were measured systematically as a function of relative humidity (from 0% to 100%) at static equ...
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Article
FT far IR studies of YBa2Cu3Ox and Ln-Ba-Cu-O superconductor systems
An investigation of FT far IR spectra of YBa2Cu3Ox highT c superconductor and Ln-Ba-Cu-O systems were carried out at room and liquid nitrogen temperature, respectively. It indi...
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Article
The preliminary study of hydration of phosphocholine by FT-IR
The process of hydration of phosphocholine was investigated using FT-IR. From the intensity changes and frequency shifts of some IR bands seen for the polar groups both PO 2 − ...
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Article
Candida Rugosa Lipase Catalyzed Esterification of Racemic Ibuprofen with Butanol: Racemization of R-Ibuprofen and Chemical Hydrolysis of S-Ester Formed
The chemical treatment of products obtained from Candida rugosa lipase catalyzed enantioselective esterification of racemic ibuprofen with n-butanol in isooctane was studied. After a complete separation of the...
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Article
Relationship between foaming properties and solution properties of protein/nonionic surfactant mixtures
The foaming properties of bovine serum albumin (BSA), in the absence and presence of Triton X-100 (TX-100), have been investigated using shaking tests. The results showed that increases in the TX-100 bulk conc...
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Article
Fluorescence investigation of affinity interaction between bovine serum albumin and triazine dye in reversed micelles
The effect of Cibacron Blue 3GA (CB) on the fluorescence emission spectra of bovine serum albumin (BSA) was investigated in cationic reversed micelles formed with cetyltrimethylammonium bromide (CTAB) compared...
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Article
Temperature-dependent solubilization of PEO-PPO-PEO block copolymers and their application for extraction trace organics from aqueous solutions
The effect of temperature on naphthalene solubilization in aqueous PEO-PPO-PEO block copolymer solutions has been investigated. Increasing temperature would enhance the apparent solubility of naphthalene in aq...
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Article
Immobilization of Pseudomonas delafieldii with magnetic polyvinyl alcohol beads and its application in biodesulfurization
Pseudomonas delafieldii was immobilized in magnetic polyvinyl alcohol (PVA) beads using a hydrophilic magnetic fluid, which was prepared by a co-precipitation method. The beads had distinct super-paramagnetic pr...
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Article
Purification of nattokinase by reverse micelles extraction from fermentation broth: effect of temperature and phase volume ratio
Nattokinase is a novel fibrinolytic enzyme that is considered to be a promising agent for thrombosis therapy. In this study, reverse micelles extraction was applied to purify and concentrate nattokinase from f...
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Article
Dissipative particle dynamics simulation of gold nanoparticles stabilization by PEO–PPO–PEO block copolymer micelles
Dissipative particle dynamics (DPD) was used to simulate the formation and stabilization of gold nanoparticles in poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) (PEO–PPO–PEO) block copolymer m...
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Article
Enhanced biodesulfurization by magnetic immobilized Rhodococcus erythropolis LSSE8-1-vgb assembled with nano-γ-Al2O3
Biodesulfurization activity can be enhanced by assembling nano-γ-Al2O3 particles on the magnetic immobilized Rhodococcus erythropolis LSSE8-1-vgb. The cells can be collected and reused conveniently by an external...