Materials Literature
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A series of Yb(3+)-Er(3+) and Yb(3+)-Er(3+)-Tm(3+) codoped LaOF nanocrystals were synthesized via a modified sol-gel Pechini method. The phases and morphologies as well as the luminescence properties of the as-prepared samples were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) a…
Hydroxyethyl starch nanocapsules (NCs) are potentially interesting hydrophilic drug delivery carriers, since they do not show non-specific interactions with the living cells. Only the presence of a targeting agent on their surface allows them to target specifically the desired site of action. In this paper, we report…
Intense visible photoluminescence (PL) tunable within 1.66-2.47 eV, under UV 325 nm excitation, was obtained from nanocrystalline silicon quantum dots (∼5.72-1.67 nm in diameter) embedded in amorphous silicon-nitride matrix (nc-Si/a-SiN(x):H) prepared in RF-ICPCVD (13.56 MHz) at substrate temperatures between 400 to 1…
Layered double hydroxides (LDH) are versatile materials used for intercalating bioactive molecules, both in pharmaceutical and cosmetic fields, with the purpose of protecting them from degradation, enhancing their water solubility to increase bioavailability, and/or obtaining modified release properties. The propertie…
A rapid ligand-exchange method was developed to transfer high quality hydrophobic magnetite nanocrystals into water-soluble NPs by using protocatechuic acid as a ligand via homogenous reaction. After ligand exchange, the magnetite nanocrystals not only exhibited outstanding stability in water, but also maintained high…
A green-emitting BODIPY dye carrying a carboxylic acid at the meso-phenyl ring was derivatised with a set of eight different hydrophilic groups neutral, negatively- or positively-charged at physiological pH. The determination of both partition coefficient (log P) and fluorescence quantum yield (ΦF) for each polar BODI…
Glioblastoma multiforme (GBM), a type of malignant glioma, is the most common form of brain cancer found in adults. The current standard of care for GBM involves adjuvant temozolomide-based chemotherapy in conjunction with radiotherapy, yet patients still suffer from poor outcomes with a median survival of 14.6 months…
Novel nanoparticulate contrast agents with low systemic toxicity and inexpensive character have exhibited more advantages over routinely used small molecular contrast agents for the diagnosis and prognosis of disease. Herein, we designed and synthesized PEGylated hybrid ytterbia nanoparticles as high-performance nanop…
Starting from commercially available 2-amino-1,3-propane diols, a variety of functional cyclic carbonate monomers were synthesized through a general two-step strategy. First the amino group was chemo-selectively reacted with a diverse set of electrophiles to result in functional diol intermediates (1), which were then…
Cancer antigen 125 (CA 125) is a useful tumor marker with a threshold value of 35 U mL(-1) expressed by more than 80% of patients with non-mucinous epithelial ovarian cancer. In this work, a novel strategy for the analysis of CA 125 using the plasmon resonance scattering (PRS) properties of gold nanorods was proposed.…
Since its recent discovery, graphene has emerged as a promising material for a variety of applications. In this article, thermally reduced graphene (TRG) was produced by thermal exfoliation of graphite oxide; characterized using XRD, SEM, TEM, FTIR, XPS, BET, and elemental analysis; and used as an adsorbent to remove…
A size tunable synthesis of mesoporous MgFe2O4 magnetic nanoassemblies (MMNs) through a PEG-diacid mediated polyol method is reported. The PEG-diacid coated MMNs exhibit a significant specific surface area of 92 m2 g−1 and saturation magnetization of 57 emu g−1. These MMNs exhibit a very good colloidal stability in PB…
In this paper, we used numerical simulations to investigate the flow properties of soft glassy materials. These systems display a mixed fluid–solid behavior whose theoretical description remains a challenging task. The molecular dynamic simulations exhibit non-local rheological behavior, in direct line with previous e…
The demand for gelatin for food and pharmaceutical application is increasing because it is one of the most widely used food ingredients. Its applications in food manufacturing are very wide-ranging including enhancing the elasticity, firmness and consistency of food products. Most commercial gelatin is presently sourc…
Silk-elastin-like polymers (SELPs) are protein-based polymers composed of repetitive amino acid sequence motifs found in silk fibroin (GAGAGS) and mammalian elastin (VPGVG). These polymers are of much interest, both from a fundamental and applied point of view, finding potential application in biomedicine, nanotechnol…
Nonimmobilized and immobilized Mg-Al hydrotalcite-like materials on silica lyogels were prepared and activated by calcination to be tested as catalysts in the direct carboxylation reaction of methanol. The HTs supported on silica lyogels showed an important improvement and high stability in the direct synthesis reacti…
In this article, we report the fabrication of a stable Ag-ZnO-SnO2 nanochain by template free hydrothermal method and its photocatalytic activity for the first time. This composite material represents a potential new class of photocatalysts with enhanced light absorption, hydrophobic and electronic properties of ZnO.…
Nanopatterned 2-dimensional Au nanocluster arrays with controlled configuration are fabricated onto reconstructed nanoporous poly(styrene-block-vinylpyridine) inverse micelle monolayer films. Near-field coupling of localized surface plasmons is studied and compared for disordered and ordered core-centered Au NC arrays…
The present paper reports to develop a polymer matrix composite (Epoxy- resin) using coconut shell powder (CSP) in different particle size and reinforcing in different volume and evaluate its tensile strength, flexural property and hydrophilic behavior along with engineering application of resulting composites.
CNTs were synthesized in 15-20 seconds by a single carbon fiber initiating the pyrolysis of ferrocene under microwave field without any other chemicals. The growth of CNTs can also be triggered by other carbonaceous materials and influenced by their configurations.