(1) Polydispersity of PS played a vital role in determining variables at the critical state of phase separation, such as the composition of coacervate (dense) and lean phases.
(2) Increase in the total colloid concentration suppressed coacervation, resulting in a coacervate of higher water content.
(3) Coacervate drops are considered as a primitive form of cooperation of molecules in the course of the origin of the living matter.
(4) Optical diffraction applied to micrographs of coacervated tropoelastin and alpha-elastin show an equatorial repeat around 50 A.
(5) Five kinds of core material and six kinds of coacervation-inducing agent (CIA) were chosen and the encapsulability of each combination was studied.
(6) The structure of the polypentapeptide is one of limited order below 20 degrees C which undergoes an inverse temperature transition to a conformation characterized by a regularly recurring beta-turn at 40 degrees C. The temperature profile for the conformational change is compared to the temperature dependence of elastomeric force of gamma-irradiation cross-linked polypentapeptide coacervate.
(7) Coacervates have been suggested as models for cytoplasm since cytoplasm is also essentially an aqueous phase of water-protein-colloid complexes.
(8) The overall effect of increasing concentration of SLS was to reduce the weight of coacervate formed.
(9) At first EHA was impregnated in wax particles, which were then encapsulated employing the complex coacervation of a gelatin-gum arabic system.
(10) A protein liquid membrane composed of coacervated alpha-elastin, a chemical fragmentation product of the biological elastic fiber protein, functioned as an amphoteric liquid ion-exchange membrane.
(11) The source, preparation, and properties of phase-separated systems such as lipid layers, coacervate droplets, sulphobes, and proteinoid microspheres are reviewed.
(12) The advantages of the coacervate systems over other models for protein binding studies of drugs are discussed.
(13) H-(Ala-Pro-Gly-Gly)n-Val-OMe did not coacervate even at as high a temperature as 100 degrees, and H-(Ala-Pro-Gly-Val-Gly)n-Val-OMe did not coacervate; however, it precipitated irreversibly around 65--70 degrees C. This suggests the critical role of the Val-Pro hydrophobic side chain interaction in coacervation.
(14) Electrophoresis and gelatin adsorption studies revealed that encapsulation by way of simple coacervation by gelatin is caused by the affinity between core and coacervate resulting from gelatin adsorption on the core surface.
(15) Recovery of the product as water-insoluble discrete units required the use of formaldehyde and isopropanol for coacervate denaturation and flocculation, respectively.
(16) Spherical droplets of clofibrate, prepared by a capillary jet method, were encapsulated in gelatin by simpel coacervation, using sodium sulfate as the coacervating agent.
(17) Terbutaline sulphate microcapsules were prepared by coacervation-phase separation induced by solvent evaporation technique.
(18) Yields and equilibrium water contents of complex coacervates from these polymers were measured, and microcapsule forming systems based on this effect were developed as potential prostheses for organ transplantation.
(19) The stability ranges of the coacervates under varying conditions of temperature, pH, salt concentration and concentration of added organic solvent have been investigated with results that suggest a marked sensitivity of elastin conformation to solution conditions.
(20) In complex coacervation method optimal ratio was 0.5:1.
Phase
Definition:
(n.) That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.
(n.) Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases.
(n.) A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.
(n.) Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.
Example Sentences:
(1) At the early phase of the sensitization a T-cell response was seen in vitro, characterized by an increased spleen but no peripheral blood lymphocyte reactivity to T-cell mitogens at the same time as increased reactivity to the sensitizing antigen was detected.
(2) It was found that linear extrapolations of log k' versus ET(30) plots to the polarity of unmodified aqueous mobile phase gave a more reliable value of log k'w than linear regressions of log k' versus volume percent.
(3) dl-Methionine stimulated the synthesis of cephalosporins when added after the growth phase.
(4) One of these antibodies, MCaE11, was used for immunohistochemical detection of MAC in tissue and for quantification of the fluid-phase TCC in ethylenediaminetetraacetic acid plasma.
(5) The first phase evaluated cytologic and colposcopic diagnoses in 962 consecutive patients in a community practice.
(6) An initial complex-soma inflection was observed on the rising phase of the action potential of some cells.
(7) The country has no offshore wind farms, though a number of projects are in the research phase to determine their profitability.
(8) Under these conditions the meiotic prophase takes place and proceeds to the dictyate phase, obeying a somewhat delayed chronology in comparison with controls in vivo.
(9) Epidermal growth factor reduced plating efficiency by about 50% for A431 cells in different cell cycle phases whereas a slight increase in plating efficiency was seen for SiHa cells.
(10) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
(11) In this phase the educational practices are vastly determined by individual activities which form the basis for later regulations by the state.
(12) Optimum rates of acetylene reduction in short-term assays occurred at 20% O2 (0.2 atm (1 atm = 101.325 kPa] in the gas phase.
(13) During the chronic phase, pain was assessed using visual analogue scales at 8 AM and 4 PM daily.
(14) High levels of spirochetes also were detected in diseased sites with phase-contrast microscopy.
(15) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
(16) It is suggested that the rapid phase is due to clearance of peptides in the circulation which results in a fall to lower blood concentrations which are sustained by slow release of peptide from binding sites which act as a depot.
(17) This article reviews the care of the chest-injured patient during the intensive care unit phase of his or her recovery.
(18) We concluded that ketamine potentiates the Phase I and the Phase II neuromuscular blocks of succinylcholine.
(19) In later phases, mast cells appeared in the newly formed marrow in the external callus.
(20) Each patient contributed only once to each phase (105 in phase 1, 107 in phase 2), but some entered both phases on separate occasions.