Materials Literature
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We prepared a highly sensitive molecularly imprinted fluorescent sensor by using a CdSe quantum dot (QD) as a signal transducer and a mesoporous silica nanoparticle as an imprinting material. Bisphenol-A (BPA) was chosen as a model template, which is known as an endocrine disruptor. Binding sites were selectively form…
Graphene-encapsulated mesoporous metal oxides (e.g. Co3O4, Cr2O3 and NiO) as novel anode materials for lithium-ion batteries were simply synthesized by adjusting the pH of mesoporous metal oxides and graphene oxide suspensions to set values (e.g. 5–6 for metal oxides, 7–8 for graphene oxide) and mixing the two suspens…
The antitumor and immunomodulatory activity of broken-spore of Ganodermalucidum polysaccharides (Gl-BSP) were investigated in vivo and in vitro. It was showed that Gl-BSP (50, 100, and 200 mg kg(-1)) exhibited antitumor effect against Sarcoma 180 (S180) in BALB/c mice. The Gl-BSP was not cytotoxicity in S180 cells and…
BACKGROUND: In eukaryotes, the CMG (CDC45, MCM, GINS) complex containing the replicative helicase MCM is a key player in DNA replication. Archaeal homologs of the eukaryotic MCM and GINS proteins have been identified but until recently no homolog of the CDC45 protein was known. Two recent developments, namely the disc…
This paper studies a kind of biocompatible hydrogel composed of alginate-g-β-cyclodextrin (Alg-β-CD) and ferrocene-terminated pluronic F127 (F127-Fc), which showed gel–sol phase transformations in response to temperature, oxidizing agents, and glucose because of the reversible association–dissociation of Fc-β-CD inclu…
Large-area Co(OH)2 nanosheets have been successfully coated with ionic liquid modified graphenevia a general strategy. The advantageous combination of graphene and the 2D structure of the Co(OH)2 nanosheets endows the obtained heterostructures with a remarkable lithium-storage performance, including high reversible ca…
Living systems are replete with complex, stimuli-responsive nanoscale materials and molecular self-assemblies. There is an ever increasing and intense interest within the chemical sciences to understand, mimic and interface with these biological systems utilizing synthetic and/or semi-synthetic tools. Our aim in this…
The majority of fast excitatory synaptic transmission in the central nervous system takes place at protrusions along dendrites called spines. Dendritic spines are highly heterogeneous, both morphologically and functionally. Not surprisingly, there has been much speculation and debate on the relationship between spine…
Based on 6-hydroxyindole BODIPY with a Schiff-base structure, NIR fluorescence with impressively high selectivity is triggered by deprotonation of the phenol group upon binding with Zn(2+) due to the chelation-enhanced fluorescence effect, thus realizing a promising application in bioimaging of Zn(2+).
TiO2 nanorod arrays grown on conductive substrates were converted using chemical strategies into CdS@TiO2 and CdS@anatase@rutile TiO2 heterostructures to fabricate visible-light harvesting assemblies. Compared to pure TiO2 nanorods, CdS@TiO2 heterostructures evidently extended the absorption edge and exhibited enhance…
An environmental friendly method for the preparation of functionalized reduced graphene oxide (rGO) in aqueous solution is developed with great easiness, using heparin as both a reducing agent and an effective stabilizer. Structural and morphological studies have demonstrated that part of the oxygen functionalities in…
In this study, we investigated bulk-heterojunction solar cells composed of PC(61)BM and squaraine dyes with different donor subunits. Both, H- and J-aggregates, have been observed for the squaraine dyes in the mixture, even for the same dye depending on the annealing conditions of the blends. Supramolecular organizati…
Star-shaped polymers were prepared by atom transfer radical polymerization (ATRP) using poly(ethylene glycol) methyl ether methacrylate (PEGMA) and methyl methacrylate (MMA) as monomers and polyhedral oligomeric silsesquioxane (POSS) as a core material. Linear copolymers from PEGMA and MMA were also prepared for compa…
Anatase TiO2 nanoparticles exposed with a remarkable amount (60%) of high-energy (001) facets were synthesized via a fluorine-free hydrothermal route, using K-titanate nanowires as a precursor and urea as a surface regulator. The carbonate ions were found to play a key role in the formation of the exposed (001) facets.
The interaction of nanomaterials with biomolecules, cells, and organisms plays an important role in cell biology, toxicology, and nanotechnology. Spontaneous Raman scattering can be used to probe biomolecules, cells, whole animals, and nanomaterials alike, opening interesting avenues to study the interaction of nanopa…
Pd–Fe3O4@C hybrid nanoparticles with 10 nm Pd nanocrystals deposited on the surface of 120 nm Fe3O4@C core–shell nanospheres have been prepared by the adsorption Pd2+ ions onto the surface of Fe3O4@C nanospheres with highly negative charges and followed by reduction of Pd2+ ions with ethanol at 60 °C. The heterodimer…
Two-dimensional dendritic Ag(3)PO(4) nanostructures have been synthesized in high-yield by reacting Ag nanowires with H(2)O(2) and NaH(2)PO(4) in aqueous solution at room temperature, which exhibit much higher photocatalytic activities than irregular Ag(3)PO(4) nanocrystals and N-doped TiO(2) catalyst for the degradat…
We report on in situ formation of hollow graphitic carbon nanospheres (HGCNs) in amorphous carbon nanofibers (ACNFs) by a combination of electrospinning, calcination and acid treatment. The prepared carbon nanofibers contain many HGCNs on which defects such as discontinuous graphene sheets with a large d-spacing in th…
A series of three-carbazole-armed host materials containing various arylene cores, like benzene (1,3,5-tris(3-(carbazol-9-yl)phenyl)-benzene, TCPB), pyridine (2,4,6-tris(3-(carbazol-9-yl)phenyl)-pyridine, TCPY), and pyrimidine (2,4,6-tris(3-(carbazol-9-yl)phenyl)-pyrimidine, TCPM), were developed for red, green, and b…
A high yield of levulinic acid was produced by directly converting cellulose over a ZrO2 catalyst by a one-pot catalytic aqueous phase partial oxidation (APPO) process. Compared to conventional acid hydrolysis, APPO is a highly selective and environmentally benign process with merits of easy recovery and re-use of het…