A novel surface ion imprinted adsorbent [Co(II)-IIP] using polyethyleneimine (PEI) as function monomer and ordered mesoporous silica SBA-15 as support matrix was prepared for Co(II) analysis with high selectivity. It was found that the pseudo-second- order model best correlated the kinetic data. Co(II) adsorption onto IIP was controlled by the intraparticle diffusion mechanism, along with a considerable film diffusion contribution. Langmuir model fitted the experiment data well and the maximum calculated capacity of Co(II) reached 39.26 mg/g under room temperature. Co(II)-IIP showed high affinity and selectivity for template ion compared with non imprinted polymer (NIP).

In the dye-sensitized system, the dye, rather than the TiO₂ photocatalyst, absorbs visible light and is excited. The photoexcited electron injection from the excited dye molecule to the conduction band of TiO₂ generates dye radical. The dye radical can selectively oxidize the alcohols to aldehydes, and it was reduced to dye. The process achieves the cycle of dye and the dye radical. The photoexcited electrons are strong enough to reduce aromatic nitro-compounds adsorbed on the surface of TiO₂ to aromatic amino-compounds.

The aggregation behaviors of a tricarbocyanine dye IR144 in water were investigated with steady-state absorption spectroscopy and femtosecond pump-probe spectroscopy. The comparison results on the IR144 absorption spectral bandshape in water and in water pool of AOT reverse micelles demonstrate that IR144 forms dimer aggregates in bulk water even at extremely low concentration. The lower fluorescence quantum yield and the slower reorientation time of IR144 in water obtained with femtosecond pump-probe experiments further confirm the above observations.

The thermal decomposition kinetics of composite modified double-base (CMDB) propellants with a series of contents of RDX was investigated by using parameters of T_eo, T_i, T_p, T_f, T_b, T_a, E, lg A and ΔH, which were obtained from differential scanning calorimeter and thermogravimetric analyzer analyses with heating rates of 5, 10, 15 and 20 K·min⁻¹. The thermal decomposition mechanism of MDBR-1 with the conversion from 0.2 to 0.4 was f(α)1/2α, and with the conversion from 0.5 to 0.7 was f(α)=(1/4)(1−α)[−ln(1−α)]⁻³; the thermal decomposition mechanism of MDBR-2 was f(α)= (1−α)²; the thermal decomposition mechanism of MDBR-3 was f(α)=(3/2)(1−α)^4/3[(1−α)^−1/3−1]⁻¹; the thermal decomposition mechanism of MDBR-4 was f(α)=1−α; the thermal decomposition mechanism of MDBR-5 was f(α)1/(2α).

Adopting LB film method, an arachidic acid (AA)/PEDOT multilayer LB film was chosen, and polymerized EDOT monomers in hydrophilic group of LB to prepare arachidic acid (AA)/PEDOT multilayer LB film. UV-Vis, FT-IR and XPS analyses implied that EDOT was effectively polymerized in film, and thus PEDOT conducting polymer was produced.

The bottom-up filling capabilities of electroless copper plating bath with a polyethylene glycol (PEG), polypropylene glycol (PPG) or triblock copolymers of PEG and PPG with ethylene oxide terminal blocks termed EPE were investigated. EPE-2000 had the strongest suppression for electroless copper deposition. The trenches with the width of 280 nm and the depth of 475 nm were all completely filled by the plating bath with an addition of EPE-2000 (2.0 mg/L), but the trenches were not completely filled by the plating bath with an addition of PEG-2000 or PPG-2000.

Based on crystal structure of shrimp alkaline phosphatase, the three-dimensional structure of the Cry1Ac toxin-binding Ha-ALP receptor was obtained by homology modeling and the model was further evaluated using PROSA energy and ERRAT. The important role of binding of toxin to GalNAc on Ha-ALP was discussed in the aspect of Cry1Ac toxicity. Specific recognition sites of the binding of oligosaccharides to Ha-ALP were predicted. Post-translational modification of ALP provides insights into the functional properties of ALP and leads to profound understanding of receptor and toxin interactions.

The interaction of caffeine with bovine serum albumin (BSA) under physiological condition was investigated by fluorescence, UV-vis absorption and circular dichroism (CD) spectroscopy.

Compared with Y₂O₂S:0.05Eu³⁺, the Ca_0.70Nb₂O₆:Eu³⁺_0.30 phosphor could be excited efficiently by UV (395 nm) light and emit the red light at 614 nm with line spectra, which were coupled well with the characteristic emission from UV-Near UV LED. Therefore Ca_0.70Nb₂O₆:Eu³⁺_0.30 might find application to UV-Near UV InGaN chip-based white light emitting diodes.

A series of mixed oxides Sr₄Fe_6−xCo_xO_13−δ (x=0, 1, 2, 3, or 4) were prepared by sol-gel method and used for catalytic combustion of methane. The layered intergrowth perovskite-like oxide Sr₄Fe₅CoO_13−δ exhibits the highest catalytic activity for methane combustion under the experimental conditions. The enhanced catalytic activity of Sr₄Fe₅CoO_13−δ for methane combustion could be attributed to the increased amount of oxygen vacancy caused by the partial substitution of cobalt for iron in the Sr₄Fe₆O₁₃.

Detonation properties, pyrolysis mechanism, and stability of a series of nitro and hydroxyl derivatives of benzene have been investigated at the B3LYP/6-31G∗︁ level of density functional theory. The results show that when there are adjacent nitro and hydroxyl groups in a molecule, the stability of the compound will be greatly lowered and pyrolysis will be initiated by the hydrogen transfer process. Otherwise, the pyrolysis will start from the breaking of C–NO₂ bond.

A new organic-inorganic hydrid copper borate containing [B₄O₅(OH)₄·B(OH)₃]²⁻ polyborate anion among which B(OH)₃ group is attached to [B₄O₅(OH)₄]²⁻ anion through hydrogen bondings, was synthesized and characterized.

A novel hydrated transition-metal tetraborate complex was synthesized and characterized. All structural units in this compound are linked together through two kinds of hydrogen bonds (O–H···O and N–H···O) to form a three-dimensional network.

Three novel norcantharidin acylamide acids (L¹N-thiadiazole norcantharidin acylamide acid, C₁₀H₁₁N₃O₄S; L²N-thiazole norcantharidin acylamide acid, C₁₁H₁₂N₂O₄S and L³N-benzothiazole norcantharidin acylamide acid, C₁₅H₁₄N₂O₄S) were synthesized, characterized. The interaction between the compounds and DNA were studied and antiproliferative activities of the compounds against human hepatoma cells (SMMC7721) in vitro were evaluated.

The thermal decomposition of the complex [Sm(p-MOBA)₃bath]₂· 4H₂O was studied under the non-isothermal condition by TG-DTG and IR techniques. The most probable mechanism function of the dehydration process was obtained from the analysis of DSC curves of the complex employing the double extrapolated method on the basis of NL-INT and Tang-Wanjun integral equations.

Alumina doping and sulfation in hierarchically porous zirconia solid acids have been achieved simultaneously via one-pot and bi-surfactant-assisted self-assembly process, using aluminum sulfate as both Al and SO₄²⁻ sources. The prepared composite solid acids showed much enhanced acidity and recycling catalytic activity for an esterification reaction compared with sulfated zirconia without alumina doping and Al-doped sulfated zirconia without hierarchically porous structure.

A novel synthetic method for the preparation of aliphatic aldehydes is provided. 1,3-Dimethylbenzimidazolium salts were rapidly reduced with sodium/ethanol and then hydrolyzed with HCl to obtain aliphatic aldehydes. The mechanism for the reductive reaction of 1,3-dimethylbenzimidazolium salts with sodium/ethanol was discussed.

Two novel water-soluble indocyanine dyes were synthesized. Their chemical structures were confirmed by ¹H NMR, IR, MS and UV-vis techniques. The absorptions of the prepared dyes in different solvents were measured.

An efficient and practical method is described for the ring-opening reactions of N-tosylaziridines with various thiols in water under mild conditions. Various surfactants have been evaluated to optimize the reactions. Under optimal conditions, these reactions gave rise to the corresponding β-amino sulfides in good to excellent yield.

A novel class of molecules with structure N-(3-arylpropyl)-9,10-dihydro-9-oxo-acridine-4-carboxamides were designed by generating a pharmacophore for potent MDR reversal activity using phase drug design software. The designed molecules were synthesized by a novel synthesis route and evaluated for their inhibitory effects on the transport activity of P-glycoprotein (P-gp) by standard Hoechst 33342 assay method. Based on the pIC₅₀ values of ten title compounds screened, three compounds exhibited better activity as compared to Verapamil used as standard.

An efficient approach to 1,4-dihydropyridines containing novel substituted pyrazole is achieved via three-component reaction of pyrazolyl aldehyde, β-ketoester, and ammonium acetate in one-pot under sulfamic acid catalysis.

A series of novel phthalimides was prepared and tested for antifungal activity in vitro against seven phytopathogenic fungi. The results showed that those compounds holding the structure of 6-methylpyridin-2-yl exhibited good activity against Phytophthora capsici and Botrytis cinerea.

A facile approach for the first total synthesis of two naturally occurring geranylated flavonoids, (±)-puyanin (1) and (±)-4′-O-methylbonannione (2) has been obtained with total yields of 27% and 17.8%, respectively. The key steps were regioselective cyclization of geranylated trihydroxychalcone and regioselective geranylation of 2,4,6-trihydroxyacetophenone.

Magnetic nanoparticle-supported Pd/Fe₃O₄ was readily prepared and proved to be versatile catalyst for efficient Suzuki cross-coupling reaction, and the reduction of nitroarenes under mild conditions (balloon H₂ pressure and room temperature). Catalyst could be conveniently recovered and reused several times with sustained catalytic activity.

A structurally simple AuNPs-based optical sensing system (4) functionalized with two thiourea arms acting as an enhanced sensitive and selective chemosenor for manolate has been developed. The organic-inorganice hybided sensor 4 presented a promising pathway for the design of chemosensors to some special anion.

Twelve novel compounds of 2-acetyl-1H-benzimidazole oxime-ethers and 2-acetyl-6- chloro-1H-benzimidazole oxime-ethers were synthesized with o-phenylenediamine (or 4-chloro-o-phenylenediamine), 2-hydroxypropyl acid, alkoxy (or benzyloxy) amines hydrochloride as starting materials. The structures of the target compounds were characterized by IR, ¹H NMR spectra and elemental analyses. The in vitro fungicidal activities against Botrytis cinerea Pers and Alternaria alternata were also evaluated by mycelium growth rate method. The results indicate that the compounds 3b, 3c, 3f, 3g and 3h exhibit good activities against Botrytis cinerea Pers, while 3b and 3f possess excellent activities against Alternaria alternate, and their fungicidal activities are all higher than that of carbendazim.

Based on the catalytic effect of polyphenoloxidase (PPO) on the dissolved oxgen oxidizing dopamine to form polymer particles and its resonance scattering (RS) effect at 780 nm, PPO activity in the range of 0.10–6.0 U·mL⁻¹ can be detected by this RS assay.

The binding property of asiatic acid (AA) with bovine serum albumin (BSA) has been studied in detail by various spectroscopic techniques under simulative physiological conditions. The fluorescence quenching mechanism of BSA by AA, the binding constant and the protein secondary structural changes of AA-BSA in aqueous solution were analyzed.

Alizarin red (AR) can bind with aloe polysaccharide (APS) in doubly deionized water to form a red complex resulting in fluorescence quenching of it. The fluorescence quenching values are directly proportional to the concentration of APS.

Sensitive spectrofluorimetric method with high reproducibility has been developed for the assay of gabapentin in pharmaceutical preparations by means of the derivative formed with NBD-F.

A new method for simultaneous determination of six phthalate esters was developed by a combination of electrospun nylon6 nanofibers mat-based solid phase extraction with HPLC-UV. Compared with C18 cartridges SPE, C18 disks SPE and national standard method, nylon6 nanofibers mat-based SPE was advantageous in aspects of recovery, LOD, precision and low consumption of extraction materials and organic solvents. Therefore, nylon6 nanofibers mat has great potential as a novel material for solid phase extraction.

A novel peroxyoxalate chemiluminescence system based on a hydrophobic fluorescent conjugated polymers has been designed for the high sensitive determination of Triton X-100.

A carbon fiber paste electrode using ionic liquid as the binder (CFILE) was fabricated. Glyphosate (GLY) exhibited excellent catalysis to the oxidation of Ru(bpy)³₂₊ on CFILE and brought an obvious enhancement to ECL intensity of Ru(bpy)³₂₊. Based on the catalytic ability of GLY, a simple ECL method for GLY detection had been established.

Symmetrical diynes were synthesized by ligand-free copper-catalyzed homocoupling reaction of 1,1-dibromo-1-alkenes using a DBU/DMSO system at room temperature in good to excellent yields.

Ca-deficient hydroxyapatite [HAP-1, Ca₉(HPO₄)(PO₄)₅(OH)] exhibits large adsorption of a variety of organics in H₂O/t-BuOH solution, O/W biphasic system and aqueous solution. An assumed adsorption mechanism (supraemulsion) containing four steps has been proposed, in which core formation is the key step, the step for C sites on HAP-1 binding negative charged oil droplets.