Showing papers by "Nankai University published in 2000"
TL;DR: A variety of flavonoids, lignans, an alkaloid, a bisbenzyl, coumarins and terpenes isolated from Chinese herbs was tested for antioxidant activity as reflected in the ability to inhibit lipid peroxidation in rat brain and kidney homogenates and rat erythrocyte hemolysis.
497 citations
TL;DR: The aqueous extracts of Coptis chinensis, Paeonia suffruticosa, Prunella vulgaris and Senecio scandens exhibited the highest potency in inhibiting rat erythrocyte hemolysis and lipid peroxidation in rat kidney and brain homogenates.
494 citations
TL;DR: A novel adaptive long-range fading channel prediction algorithm (LRP) and its utilization with adaptive transmission methods are described and results show that long- range prediction makes adaptive transmission techniques feasible for mobile radio channels.
Abstract: It was previously proposed to adapt several transmission methods, including modulation, power control, channel coding, and antenna diversity to rapidly time variant fading channel conditions. Prediction of the channel coefficients several tens-to-hundreds of symbols ahead is essential to realize these methods in practice. We describe a novel adaptive long-range fading channel prediction algorithm (LRP) and its utilization with adaptive transmission methods. The LRP is validated for standard stationary fading models and tested with measured data and with data produced by our novel realistic physical channel model. Both numerical and simulation results show that long-range prediction makes adaptive transmission techniques feasible for mobile radio channels.
493 citations
TL;DR: In this paper, a fiber-optic sensor based on a superstructure fiber Bragg grating (SFBG) for simultaneous strain and temperature measurement is proposed and demonstrated, where the transmission spectrum of the sensor possesses several narrow-band loss peaks situated on the slope of a broadband loss peak.
Abstract: A novel and simple fiber-optic sensor based on a superstructure fiber Bragg grating (SFBG) for simultaneous strain and temperature measurement is proposed and demonstrated. The transmission spectrum of the sensor possesses several narrow-band loss peaks situated on the slope of a broad-band loss peak. By measuring the transmitted intensity and wavelength at one of the loss peaks, strain and temperature can be determined simultaneously. The accuracy of the sensor in measuring strain and temperature is estimated to be /spl plusmn/20 /spl mu//spl epsiv/ in a range from 0 to 1200 /spl mu//spl epsiv/ and /spl plusmn/1.2/spl deg/C from 20/spl deg/C to 120/spl deg/C, respectively.
301 citations
TL;DR: It was found that 5-(4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-yl)-1,3, 4-thiadiazole-2-thione has the higher fungicidal activity.
Abstract: Some series of 2-alkyl (alkythio)-5-((4-chloro)-3-ethyl-1-methyl-1H-pyrazole-5-yl)-1,3, 4-oxadiazoles (thiadiazoles) were prepared as potential fungicides. Their fungicidal activity was evaluated against rice sheath blight, which is a major disease of rice in China. Structure-activity relationships for the screened compounds were evaluated and discussed. It was found that 5-(4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-yl)-1,3, 4-thiadiazole-2-thione has the higher fungicidal activity.
212 citations
TL;DR: In this article, the authors presented analytical formulas to describe the shift in the resonance wavelength of a long-period fiber grating in response to etching of the fiber cladding or a change in the external refractive index.
Abstract: Analytical formulas are presented for the first time to describe the shift in the resonance wavelength of a long-period fibre grating (LPFG) in response to etching of the fibre cladding or a change in the external refractive index. The accuracy of the formulas is confirmed by comparison with numerical simulations and experimental results. It is shown that the resonance wavelengths of an etched LPFG are more sensitive to the external refractive index than those of an unetched grating.
196 citations
TL;DR: In this paper, the porewaters collected from eighteen piezometers installed between 3 and 91.4 m below ground in a thick till and clay-rich aquitard sequence located in southern Saskatchewan to investigate the distribution of, and controls on arsenic speciation in the sequence.
168 citations
145 citations
TL;DR: The synthesis and biological activity of α-aminophosphonic acid derivatives have attracted wide attention in chemistry, medicine, and agricultural science as mentioned in this paper, with α-amino acids and their derivatives attracting wide attention.
Abstract: As phosphorus analogs of natural α-amino acids, α-aminophosphonic acids and their derivatives have attracted wide attention in chemistry, medicine, and agricultural science. In this report, we provide an overview of our work about the synthesis and biological activity of α-aminophosphonic acid derivatives. © 2000 John Wiley & Sons, Inc. Heteroatom Chem 11:480–492, 2000
142 citations
TL;DR: In this paper, it was shown that the pressure and temperature sensitivities of a fiber Bragg grating can be increased by as much as 30 and 8 times, respectively, by coating the FBC with a polymer.
Abstract: It is shown, both theoretically and experimentally, that the pressure and temperature sensitivities of a fibre Bragg grating (FBG) can be increased by as much as 30 and 8 times, respectively, by coating the FBC with a polymer. A novel technique is then presented for coating an FBG with polymers so that a single FBG can be used for simultaneous measurement of pressure and temperature with good sensitivities.
139 citations
TL;DR: In this paper, a perovskite-type LaFeO 3 was synthesized under Na 2 CO 3 -containing medium, and characterized by X-ray diffraction (XRD), SEM, IR and ICP.
TL;DR: In this paper, a 3D skew ray modeling has been developed to consistently explain the experimental phenomena for an intrinsic SPR multimode optical fiber sensor, and the effects of the polarization direction of the incident light at certain conditions have been clarified.
Abstract: A 3D skew ray modeling has been developed to consistently explain the experimental phenomena for an intrinsic SPR multimode optical fiber sensor. The effects of the polarization direction of the incident light at certain conditions have been clarified. This simulation is needed to accurately detect the variations of the refractive index of the bulk medium and of the thickness of the thin surface layer. More complete knowledge about light energy transmission by the skew ray in the multimode step-index fiber is obtained by this investigation.
TL;DR: In this paper, a new scheme for simultaneous strain and temperature measurement using a single fibre Bragg grating was proposed, which was written on the splice joint between two fibres and has two Bragg wavelengths, which show the same strain dependence but different temperature response and hence can be used for strain/temperature discrimination.
Abstract: A new scheme for simultaneous strain and temperature measurement using a single fibre Bragg grating is proposed. The Bragg grating was written on the splice joint between two fibres and has two Bragg wavelengths, which show the same strain dependence but different temperature response and hence can be used for strain/temperature discrimination.
TL;DR: The social welfare system, which used to be an integral part of the socialist economy, has inevitably been subject to a drastic reform process as mentioned in this paper, which has strongly affected the social policy reform in China.
Abstract: China has undergone a fundamental economic reform from socialist to market economy since the late 1970s. The social welfare system, which used to be an integral part of the socialist economy, has inevitably been subject to a drastic reform process. This transition to the market economy coincided with a globalization process to which China’s economy has been rapidly integrated. This, in turn, has strongly affected the social policy reform in China. This chapter aims, first, to examine the social policy reform in China in the context of marketization and globalization since the economic reform started.
TL;DR: In this article, the effects of different concentrations of lead nitrate on root, hypocotyl and shoot growth of Indian mustard (Brassica juncea var. Megarrhiza), and the uptake and accumulation of Pb2+ by its roots, hypocotonyls and shoots were investigated.
TL;DR: In this article, an improved method for characterization of polycyclic aromatic hydrocarbons (PAHs) in used lubricating oils was presented, which was used to determine PAH profiles in lubricating oil samples collected from a gasoline-driven automobile after various driving distances.
Abstract: Used lubricating oils are majorsources of polycyclic aromatic hydrocarbons (PAHs) inmarine environments. This study presents an improvedmethod for characterization PAHs in used lubricatingoils. Recoveries of sixteen certified PAHs spikedinto used lubricating oil indicated this method wasmore precise and efficient than those reportedpreviously. Aromatic and aliphatic compounds in usedlubricating oil were extracted by dimethylsulfoxide,then separated by a silica gel column using hexane anddichloromethane as solvents. Finally, gaschromatography-mass spectrometry was used inqualitative and quantitative analysis of various PAHsin oil samples. Sixteen certified PAHs andeighty-three other PAHs were identified and quantified usingPAH standards and previously reported retentionindices as references. The improved method was usedto determine PAH profiles in lubricating oil samplescollected from a gasoline-driven automobile aftervarious driving distances. One hundred and eightyaromatic compounds, including ninety-nine PAHs, wereidentified by the gas chromatographic method. Theseresults suggested that the new method was superior tomethods described in previous studies. Theconcentrations of PAHs, including the comparativelytoxic 5-ring PAHs, increased rapidly even after theautomobile had only been driven for a short distance. 2- and 3-ring PAHs, most of them are alkylated,dominated the PAH profiles of the collected oil samples.
TL;DR: In this paper, the authors derived the thermodynamics of strange quark matter with density-dependent particle masses, which resolves the problem of inconsistencies in the thermodynamical properties of the earlier approaches.
Abstract: Upon application of both the general ensemble theory and basic thermodynamical principles, we derive in detail the thermodynamics of strange matter with density-dependent particle masses, which resolves the problem of inconsistencies in the thermodynamical properties of the earlier approaches. We then recalculate the properties of strange quark matter with this new thermodynamical treatment and our recently determined quark mass scaling, and find that the density behavior of the sound velocity is opposite to the previous finding, but consistent with one of our recent publications. The structure equations for strange stars are integrated with the presently obtained equation of state. We find that the mass-radius relation is similar to previous results except the maximum mass is smaller in our case if strange quark matter is absolutely stable.
TL;DR: The examination shows that the contents (both coverage and relevance) and ease of use of a system as they were perceived by the user were the most significant factors affecting patterns of use.
Abstract: On the basis of a twenty‐two month transaction log of SuperJournal and using K‐Means cluster analysis, this paper classifies a spectrum of user behaviour with electronic journals into a typology of eight categories of user (or eight patterns of use): the searcher, the enthusiastic user, the focused regular user, the specialised occasional user, the restricted user, the lost user, the exploratory user and the tourist. It examines the background and experience with SuperJournal of each type of user to illuminate its formation. The examination shows that the contents (both coverage and relevance) and ease of use of a system as they were perceived by the user were the most significant factors affecting patterns of use. Users’ perceptions of both factors were affected by a range of intervening factors such as discipline, status, habitual approach towards information management, availability of alternative electronic journal services, purpose of use, etc. As any service is likely to attract a great variety of users, so will it lead to differing patterns of use. This paper demonstrates the need for a service to meet the requirements of users with these varied patterns.
TL;DR: In this article, a new class of multi-level supersaturated designs are obtained by collapsing a U-type uniform design to an orthogonal array, and a global optimization algorithm is then applied to search for the best supersaturated design under any prespecified criterion.
TL;DR: By further discriminating the pairwise correlations, efficient designs of runs from 6 to 24 are constructed and tabulated, demonstrating the effectiveness of the general algorithm of constructing E(s2) optimal supersaturated designs from cyclic BIBDs.
TL;DR: In this paper, the electrochemical and spectral properties of three copper(II) complexes were investigated by cyclic voltammetry, electronic and ESR spectra, and the results from spectroscopic and redox studies were consistent with the crystallographic results and perfectly related to each other.
Abstract: The electrochemical and spectral behaviors of three copper(II) complexes [CuL1] 1, [CuL2] 2 and [CuL3] 3, where L1, L2 and L3 are the dianions of macrocyclic oxamido Schiff bases, have been investigated by cyclic voltammetry, electronic and ESR spectra. These macrocyclic complexes, which incorporate both oxamido and imine groups, can undergo quasi-reversible reduction (CuII → CuI) and oxidation (CuII → CuIII). The crystal structures of 1 and 2 have been determined by single-crystal X-ray analysis. The difference in ring size leads to significant differences in molecular and crystal structure, electronic and ESR spectra and redox behavior. In the [14]N4 macrocyclic complex, 2, the CuN4 chromophore assumes a nearly square-planar co-ordination geometry, but the geometry in the [15]N4 macrocyclic complex, 1, is distorted towards tetrahedral. The results from spectroscopic and redox studies are consistent with the crystallographic results and perfectly related to each other. The main factors that determine the relative stability of CuI and CuIII in these complexes are the size, geometry and flexibility of the co-ordination cavity.
TL;DR: The method was successfully applied to the determination of trace dissolved Fe(III) and Fe(II) in local tap water, river water, and groundwater samples and the result for total iron concentration in the river water reference material SLRS-3 was in good agreement with the certified value.
Abstract: A method has been developed for the speciation of trace dissolved Fe(II) and Fe(II) in water by on-line coupling of flow injection separation and preconcentration with inductively coupled plasma mass spectrometry (ICPMS). Selective determination of Fe(III) in the presence of Fe(II) was made possible by on-line formation and sorption of the Fe(III)-pyrrolidinecarbodithioate (PDC) complex in a PTFE knotted reactor over a sample acidity range of 0.07-0.4 mol L(-1) HCl, elution with 1 mol L(-1) HNO3, and detection by ICPMS. Over a sample acidity range of 0.001-0.004 mol L(-1) HCl, the sum of Fe(III) and Fe(II), i.e., Fe(III + II), could be determined without the need for preoxidation of Fe(II) to Fe(III). The concentration of Fe(II) was obtained as the difference between those of Fe(III + II) and Fe(III). With a sample flow rate of 5 mL min(-1) and a 30-s preconcentration time, an enhancement factor of 12, a retention efficiency of 80%, and a detection limit (3s) of 0.08 microg L(-1) were obtained at a sampling frequency of 21 samples h(-1). The relative standard deviation (n = 11) was 2.9% at the 10 microg L(-1) Fe(III) level. Recoveries of spiked Fe(III) and Fe(II) in local tap water, river water, and groundwater samples ranged from 95% to 103%. The concentrations of Fe(III) and Fe(II) in synthetic aqueous mixtures obtained by the proposed method were in good agreement with the spiked values. The result for total iron concentration in the river water reference material SLRS-3 was in good agreement with the certified value. The method was successfully applied to the determination of trace dissolved Fe(III) and Fe(II) in local tap water, river water, and groundwater samples.
TL;DR: Results unequivocally indicate that the nature of the pendant arms is a key factor governing the structure and properties of the complexes; therefore, the coordination modes and propertiesOf a diazamesocyclic ligand with an infinite polymeric structure can be controlled by altering the pendants.
Abstract: A series of new diazamesocyclic ligands based on a diazamesocycle, l,5-diazacyclooctane (DACO), functionalized by additional donor groups1,5-bis(N-1-methylimidazol-2-ylmethyl)-1,5-diazacyclooctane (L1), 1-(2-hydroxybenzyl)-1,5-diazacyclooctane (HL2), 1,5-bis(2-hydroxybenzyl)-1,5-diazacyclooctane (H2L3), and 1-(N-1-methylimidazol-2-ylmethyl)-1,5-diazacyclooctane (L4)and their Cu(II) complexes have been synthesized and characterized. Single-crystal X-ray diffraction analysis of the four Cu(II) complexes revealed that L1 forms a five-coordinate mononuclear complex, HL2a N3- μ-bridged binuclear complex, H2L3 an oxygen μ-bridged trinuclear complex, and L4 a one-dimensional zigzag coordination polymeric complex with Cu(II). [CuL1ClO4](ClO4) (I): a = 12.194(2) A, b = 13.351(3) A, c = 14.473(3) A, β = 107.10(3)°, Z = 4. [CuL2(N3)]2 (II): a = 8.1864(6) A, b = 18.141(2) A, c = 9.3307(7) A, β = 103.662(6)°, Z = 2. [Cu3(L3)2Cl2] (III): a = 10.7296(13) A, b = 13.7707(17) A, c = 13.5523(17) A, β = 106.350(3)°, Z = 2...
TL;DR: In this paper, a series of nanocrystalline rare earth doped alkaline earth sulphates, MSO 4 : x Eu 3+ (M=Ca,Sr, Ba; x = 0.001-0.005), have been prepared by co-precipitation method.
TL;DR: A fast and efficient technique for profilometric measurement with a color-coded grating that has the advantages of simple hardware without moving mechanical parts, single exposure for obtaining three-dimensional information, little influence from noise and from nonlinearity of the CCD camera on the measurement accuracy, and higher anti-color-blurring capability.
Abstract: A fast and efficient technique for profilometric measurement with a color-coded grating is proposed. Eight colors are used to code the grating, and each color represents only one logical state. There are 64 stripes in one period of the color grating, which is large enough for normal measurement. Compared with the previous techniques, it has the advantages of simple hardware without moving mechanical parts, single exposure for obtaining three-dimensional information, little influence from noise and from nonlinearity of the CCD camera on the measurement accuracy, and higher anti-color-blurring capability. The suggested technique is suitable for on-line inspection and dynamic measurement of moving objects.
TL;DR: It is demonstrated experimentally that so-called damage-resistant dopants such as Mg are damage resistant only in the visible and that they will enhance photorefraction in the UV.
Abstract: We investigate UV photorefraction in Mg-doped LiNbO3 crystals. Strong UV photorefraction is achieved in highly Mg-doped LiNbO3 crystals with high two-wave mixing gain, fast response, and low noise. It is also demonstrated experimentally that so-called damage-resistant dopants such as Mg are damage resistant only in the visible and that they will enhance photorefraction in the UV.
TL;DR: Interestingly, the product ee's obtained with benzoate 3a and methyl phthalate 3b are not a simple function of either temperature or solvent, but are nicely correlated with the host occupancy or the percentage of occupied host, which means that the entropy factor plays an insignificant role in this supramolecular photochirogenesis system.
Abstract: Supramolecular enantiodifferentiating photoisomerization of (Z)-cyclooctene (1Z) to the chiral (E)-isomer (1E) via inclusion and sensitization by modified alpha-, beta-, and/or gamma-cyclodextrin derivatives, possessing benzoate (2a, 3a, 4a), isomeric phthalates (3b-d), and tethered benzamide (3e) chromophores, has been investigated in aqueous methanol solutions at varying temperatures. The photostationary-state 1E/1Z ratios obtained upon sensitization with 2-4 in 1:1 water-methanol reached 0.4-0.8, which are higher than the value of ca. 0.25 reported for sensitizations by conventional alkyl benzoates in hydrocarbon solvents, although the ratio was reduced to 0.2-0.4 in water or methanol. The sensitizations of 1Z by alpha- and gamma-cyclodextrin benzoates (2a, 4a) with size-mismatched cavities gave 1E of poor enantiomeric excesses (ee's) smaller than 3 and 5%, respectively. In contrast, beta-cyclodextrin derivatives (3a-e) afforded much higher ee's of up to 24%, depending on the solvent composition. Thus, the modification of cyclodextrin with a sensitizing group successfully enhanced the product through the excited-state supramolecular interaction within the cavity. Interestingly, the product ee's obtained with benzoate 3a and methyl phthalate 3b are not a simple function of either temperature or solvent, but are nicely correlated with the host occupancy or the percentage of occupied host. This means that the entropy factor plays an insignificant role in this supramolecular photochirogenesis system, which is in sharp contrast to the decisive role of entropy in the conventional (nonsupramolecular) counterpart performed in homogeneous solutions, where an inversion of product chirality by temperature variation is reported to occur.
TL;DR: Results indicated that the oxidation of HEH by NO was initiated by hydrogen transfer from the N(1)-position to give the corresponding aminyl radical, which then underwent homolytic cleavage to become the final aromatized product (A).
Abstract: 4-Substituted derivatives of Hantzsch 1,4-dihydropyridine were treated by nitric oxide (NO) or its donor N-methyl-N-nitrosotoluene-p-sulfonamide (MNTS) to give the corresponding pyridine derivatives. When the 4-substituted group was methyl, ethyl, n-propyl, and aryl groups, it was preserved, but when the group was isopropyl or benzyl one, it was lost. 2,3-Dichloro-5, 6-dicyano-1,4-benzoquinone (DDQ) was used in place of NO and MNTS to react with the 4-substituted Hantzsch 1,4-dihydropyridines, no the corresponding 4-dealkyl Hantzsch pyridines were obtained from all the reactions. 1-Benzyl-1,4-dihydronicotinamide (BNAH), a close analogue of Hantzsch 1,4-dihydropyridine (HEH), was used instead of HEH to react with either of NO and MNTS, no reactions were observed for 3 days. Replacement of HEH by N-d-HEH and HEH-4,4-d(2) to react with NO, MNTS and DDQ gave the observed kinetic isotope effects of 3.1 and 1.4 for NO, 1.1 and 1.3 for MNTS, and 1.1 and 2.1 for DDQ, respectively. When p-dinitrobenzene, an electron-transfer inhibitor, was added into the title reaction systems, no remarkable inhibitory effect was observed. These results indicated that the oxidation of HEH by NO was initiated by hydrogen transfer from the N(1)-position to give the corresponding aminyl radical, which then underwent homolytic cleavage to become the final aromatized product (A). But the reaction of HEH with MNTS was initiated by nitrosation to give the corresponding N-nitroso compound, which was subsequently subjected to two steps of homolytic cleavage to afford the aromatized Hantzsch pyridine A.
TL;DR: The preparation, X-ray crystal structure, and magnetic properties of alternating 1,1- and 1,3-azido-bridged copper(II) complex [Cu(4,4'-dmbpy)(N3)2]n (1, 4, 4'-dMBpy = 4,4-dimethylbipyridine) have been reported.
Abstract: The preparation, X-ray crystal structure, and magnetic properties of alternating 1,1- and 1,3-azido-bridged copper(II) complex [Cu(4,4'-dmbpy)(N3)2]n (1, 4,4'-dmbpy = 4,4'-dimethylbipyridine) have been reported It crystallizes in triclinic system, space group P1, a = 79903(1) A, b = 93545(9) A, c = 10754(2) A, alpha = 113485(1) degrees, beta = 101399(1) degrees, gamma = 101897(1) degrees, Z = 2 The magnetic properties of 1 have been investigated in the temperature range 15-300 K Alternating antiferromagnetic (-J = 1910 cm(-1)) interaction through a 1,3-N3- bridge and ferromagnetic (J = 2971 cm(-1)) interaction through a 1,1-N3- bridge are obtained for 1 by analyzing the magnetic susceptibility data with the Hamiltonian H = -Jsigma(S2iS2i-1--alphaS2iS2i+1) It's derivatives ([Mn(4,4'-dmbpy)(N3)2]n (2), [Ni(4,4'-dmbpy)(N3)2]n (3), and [Fe(4,4'-dmbpy)(N3)2]n (4) and the heterometallic derivatives [NiMn(4,4'-dmbpy)2(N3)4]n (5) and [CuMn(4,4'-dmbpy)2(N3)4]n (6) have also been synthesized and characterized by electronic and IR spectra The X-ray powder diffraction and the magnetic properties of 6 have also been discussed
TL;DR: A general conclusion has been drawn that the complexation behaviors of the calixarenes are largely driven by electrostatic interaction, rather than the hydrophobic interaction in the cyclodextrin’s complexation.
Abstract: Calixarene chemistry is currently developing rapidly. It was stimulated by the pioneering work1 about two decades ago by Gutsche et al., who optimized the synthetic procedures for p-tert-butylcalix[n]arene (n ) 4, 6, and 8)2 in multigram amounts on a laboratory scale in a relatively simple condensation reaction starting from inexpensive materials. Derivatization on the upper rim (para-positions) and the lower rim (the phenolic hydroxy groups) has been conducted to obtain a large number of calixarene derivatives in the past 20 years.3 As the third generation of host molecules,4 calixarenes possess the merits of crown ethers and cyclodextrins. However, in contrast to their attractive architecture, complexation studies have been limited, especially on alkaline cations and alkaline earth cations in organic solvents due to their low solubility in aqueous solution. Therefore, it was difficult to compare the complexation behaviors between the cyclodextrins and the calixarenes. Fortunately, the sulfonation of calixarenes on their para-positions produced calixarenesulfonates, which are readily soluble in water.5 Subsequently, although some other water-soluble calixarene derivatives have been prepared, calixarenesulfonates have attracted the most attention. Shinkai6a-d and Barra6e have reported the complexation of several ammonium and dyes with calix[n]arenesulfonates (n ) 4, 6, and 8) and their alkylated derivatives. Kaifer et al. have qualitatively and quantitatively studied the complexation of metallocenium (ferrocenium and cobaltocenium) with calix[n]arenesulfonates, and metallocene (ferrocene, and cobaltocene) with cyclodextrins, respectively.7 A general conclusion has been drawn that the complexation behaviors of the calixarenes are largely driven by electrostatic interaction, rather than the hydrophobic interaction in the cyclodextrin’s complexation. Furthermore, Shinkai has stated that the calix[6]arene cavity is more hydrophobic than that of â-cyclodextrin.8 It is difficult to select a guest molecule which shows strong binding with both cyclodextrins and water-soluble calixarenes, which possess a hydrophobic cavity; however, their cavities are different in nature. Although there are many documents that focus on the inclusion complexation of modified cyclodextrins, or water-soluble calixarene derivatives, respectively, there are few studies on the complexation of a guest molecule with two host compounds.9 In our project, acridine red dye was found to be suitable for comparison purposes. It could form stable complexes with two kinds of host compounds, showing distinctly opposite fluorescent behavior upon the complexation of cyclodextrins and calixarenesulfonates. Complexation and thermodynamic research would help to investigate and compare the cavity hydrophobicity, the interaction nature, and the complexation behavior between cyclodextrins and water-soluble calixarenes. Herewith, we present the results on the complexation behaviors and thermodynamics of calix[n]arenesulfonates and R-, â-, and γ-cyclodextrins, employing acridine red dye as the guest molecule (Chart 1).