Nanoparticles for amyloid diseases: CdTe nanoparticles (NPs) can efficiently prevent fibrillation of peptides; the process is based on multiple binding Aβ oligomers to NPs. The molar efficiency and inhibition mechanism displayed by NPs are analogous found proteins responsible prevention in human body.

We demonstrated a self-assembly of two different kinds nanoparticles simultaneously directed on monolayer film diblock copolymer micelles via physical and chemical arrangements. first incorporated gold physically around the PS-PVP having short-range hexagonal order. Iron oxide were then synthesized chemically in PVP core area ordered micelles, resulting mosaic nanopattern magnetic iron surrounded by metallic nanoparticles. Thus, we able to direct self-assemble specific positions as an...

The work function and surface property of ZnO can be simply tuned by the self-assembled monolayer (SAM) molecules derived from benzoic acid such as 4-methoxybenzoic (MBA), 4-tert-butylbenzoic (BBA), 4-fluorobenzoic (FBA), which have different dipole orientation magnitude. MBA, BBA, FBA treated layers were used an electron injection/transporting layer for inverted type polymer solar cells (PSCs) with a structure ITO/SAM ZnO/active (P3HT:PC61BM)/MoO3/Ag. power conversion efficiency (PCE) PSCs...

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTHighly Ordered Arrays of Nanoparticles in Large Areas from Diblock Copolymer Micelles Hexagonal Self-AssemblySang-Hyun Yun, Seong Il Yoo, Jin Chul Jung, Wang-Cheol Zin, and Byeong-Hyeok SohnView Author Information Department Materials Science Engineering, Pohang University Technology, 790-784, Korea, Chemistry, NANO Systems Institute, Seoul National University, 151-747, Korea Cite this: Chem. Mater. 2006, 18, 24, 5646–5648Publication Date...

Recently, it has been noticed that surface plasmon resonance of metal nanoparticles can alter the intrinsic properties nearby fluorophores. Field enhancement and radiative decay engineering are major principles for understanding a number experimental observations such as enhanced quenched emission fluorophores in vicinity nanoparticles. At same time, there apparent similarities between surface-plasmon-coupled fluorescence energy transfer (FRET), both near-field through-space interactions....

Iron oxide nanoparticles dispersed within a thermally responsive poly(N-isopropylacrylamide) (PNIPAm) hydrogel matrix effectively convert the photo energy of visible light modest intensity into thermal energy, providing efficient means to trigger changes in volumetric swelling hydrogels. However, long irradiation time (on order minutes) and volume change limit their applications that need fast response and/or large change. In this work, we found degree triggered by could be maximized...

Antimicrobial function of Ag nanoparticles (NPs) has a strong correlation with the released Ag+ cations that are produced by oxidation NPs in solution state under ambient condition. Therefore, order to develop anti-infective materials for biomedical applications, one needs include inside biocompatible materials, which can allow slow release cations. Hydrogels natural polymers could be an ideal choice purpose because (a) physicochemical properties hydrogels resemble biological tissue, and (b)...

Taking advantage of the triboelectrification effect and electrostatic induction, triboelectric nanogenerators (TENGs) provide a simple efficient path to convert environmental mechanical energy into electric energy. Since generation surface charges their density on materials are key factors in determining TENG performance, many efforts have been undertaken engineer structures chemistry materials. Among others, dielectric control is an emerging approach because constant intimately correlated...

Abstract Utilization of biodegradable nanofillers is an emerging approach for the sustainable development polymer composites. Among numerous green nanofillers, nanocellulose has garnered significant attention because its abundance, high mechanical strength, and reinforcing capability. However, intrinsic hydrophilicity often restricts homogeneous dispersion in hydrophobic matrix, resulting a poor reinforcement effect. In this study, simple surface modification cellulose nanofibrils (CNFs)...

In this study, a green chemistry method is reported for the synthesis of Ag2O nanoparticles with utilization starch molecules as stabilizing agent. particular, by simply adjusting concentration in reaction media, structure A2O can be engineered disc and faceted shapes, which has been analyzed transmission electron microscopy, UV-Vis spectroscopy, X-ray diffraction technique. addition, antibacterial activity prepared had evaluated against food poisoning pathogenic bacteria.

The physiological instability of nanocarriers, premature drug leakage during blood circulation, and associated severe side effects cause compromised therapeutic efficacy, which have significantly hampered the progress nanomedicines. cross-linking nanocarriers while keeping effectiveness their degradation at targeted site to release has emerged as a potent strategy overcome these flaws. Herein, we designed novel (poly(ethylene oxide))2-b-poly(furfuryl methacrylate) ((PEO2K)2-b-PFMAnk)...

Recent advances in the process of using single layers diblock copolymer micelles for fabrication arrays nanoparticles were highlighted. The technique a monolayer as an effective nanostructured template allowed precise control over type, size, location, and ordering regularity nanoparticles. approach was fully compatible with top-down lithographical methods micropatterning In addition, array two types specific positions effectively fabricated multifunctional array. A near-perfect hexagonal...

A size distribution of a binary mixture polystyrene-block-poly(4-vinylpyridine) (PS−P4VP) diblock copolymer micelles was investigated mainly by transmission electron microscopy. single-layered film PS−P4VP fabricated spin-coating enabled precise measurement the micellar size. Depending on mixing protocols, pristine small and large or pure hybridized were formed due to difference in kinetics micelle formation between copolymers having short long insoluble P4VP blocks. In addition, kinetically...

Controlled light emission is generated from thin films of fluorophores that are encapsulated in diblock copolymer micelles. The mutual distance between the two regulated by utilization nanometer-sized micellar structure, which enables or restricts energy transfer fluorophores. This encapsulation method results single simultaneous (see figure).

Abstract For concurrent emission of multiple fluorophores from a single emitting layer with highly efficient energy transfer antenna molecules to by fluorescence resonance (FRET), paradoxical requirement in an is necessary, that is, close placement fluorophore and harvesting molecule, isolation fluorophores. Here we demonstrate how overcome this paradox full utilization micellar nanostructure consisting core corona, the used as place for FRET between light‐collecting donors light‐emitting...

We demonstrate the formation of highly ordered hexagonal arrays hybridized polystyrene-poly(4-vinyl pyridine), PS-PVP, micelles with controllable size by solvent annealing techniques. Because was prohibited in mixture solutions two different-sized PS-PVP micelles, single-layered films bimodal self-assemblies small and large were fabricated from adjusting their mixing ratios. When annealed saturated vapor tetrahydrofuran (THF), on other hand, merged together to form micelles. In addition,...

Assembly of semiconductor nanoparticles into gel structures and their subsequent behaviour is one the less-developed areas in nanochemistry. We demonstrate here a simple luminescent from CdTe aqueous solution. Its structure can be described as an infinite network chainlike branched structures. The recrystallization solid monocrystalline nanowires prevented by increasing content sulphur nanoparticles, which drastically increases energy. Brief sonication returns system sol state. This...

A hexagonal array of optically active ZnO nanoparticles was synthesized in situ on the solid substrate by utilizing a single-layered film diblock copolymer micelles as nanostructured template.

A novel polyelectrolyte containing triazine (TAZ) and benzodithiophene (BDT) scaffolds with polar phosphine oxide (P═O) quaternary ammonium ions as pendant groups, respectively, in the polymer backbone (PBTAZPOBr) was synthesized to use it a cathode interfacial layer (CIL) for solar cell (PSC) application. Owing high electron affinity of TAZ unit P═O group, PBTAZPOBr could behave an effective transport material. Due dipole moment created by substantially reduced work function metal afford...

Engineering plasmonic nanoparticles (NPs) into superstructures comprising two or more distinctive materials is highly desirable because these assemblies can unfold new properties that differ from those exhibited by their individual counterparts. In addition, metal NPs such as Au and Ag have played a major role in environmental remediation. this study, we designed heterogeneous NP assembly composed of an core satellite utilizing mussel-inspired polydopamine (PDA) strategy. This approach...