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You searched for: Journal ACS Applied Materials & Interfaces Remove constraint Journal: ACS Applied Materials & Interfaces Publication Year 2015 Remove constraint Publication Year: 2015 Source 2015 v.7 no.46 Remove constraint Source: 2015 v.7 no.46
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1. Carbon-Coated Gold Nanorods: A Facile Route to Biocompatible Materials for Photothermal Applications

Author:
Kaneti, Yusuf Valentino; Chen, Chuyang; Liu, Minsu; Wang, Xiaochun; Yang, Jia Lin; Taylor, Robert Allen; Jiang, Xuchuan; Yu, Aibing
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25658-25668
ISSN:
1944-8252
Subject:
biocompatibility; biocompatible materials; carbon; cell viability; cetyltrimethylammonium bromide; coatings; cytotoxicity; fever; fibrosarcoma; functional properties; glucose; gold; heat; irradiation; nanocomposites; nanorods; neoplasm cells; optical properties; polymerization; spectroscopy; tissues
Abstract:
... Gold nanorods and their core–shell nanocomposites have been widely studied because of their well-defined anisotropy and unique optical properties and applications. This study demonstrates a facile hydrothermal synthesis strategy for generating carbon coating on gold nanorods (AuNRs@C) under mild conditions (<200 °C), where the carbon shell is composed of polymerized sugar molecules (glucose). The ...
DOI:
10.1021/acsami.5b07975

2. Carbon Nanotubes with Tailored Density of Electronic States for Electrochemical Applications

Author:
Song, Yingpan; Hu, Huifang; Feng, Miao; Zhan, Hongbing
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25793-25803
ISSN:
1944-8252
Subject:
ascorbic acid; blood serum; calves; carbon nanotubes; dopamine; electrochemistry; electron transfer; epinephrine; graphene; iron; kinetics; neonates; phenethylamine; uric acid
Abstract:
... The density of electronic states (DOS) is an intrinsic electronic property that works conclusively in the electrochemistry of carbon materials. However, seldom has it been reported how the DOS at the Fermi level influences the electrochemical activity. In this work, we synthesized partially and fully unzipped carbon nanotubes by longitudinally unzipping pristine carbon nanotubes (CNTs). We then st ...
DOI:
10.1021/acsami.5b07700

3. Characterization of Perovskite Obtained from Two-Step Deposition on Mesoporous Titania

Author:
Chen, Shanshan; Lei, Lei; Yang, Songwang; Liu, Yan; Wang, Zhong-Sheng
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25770-25776
ISSN:
1944-8252
Subject:
absorption; energy; iodides; photovoltaic cells; porous media; titanium dioxide; vapors
Abstract:
... The properties of perovskite films are sensitive to the fabrication method, which plays a crucial role in the performance of perovskite solar cell. In this work, we fabricate organo-lead iodide perovskite on mesoporous TiO₂ films through two different two-step deposition methods, respectively, for the purpose of studying the crystal growth of perovskite film and its effect on light harvesting effi ...
DOI:
10.1021/acsami.5b07511

4. Chemically Lithiated TiO2 Heterostructured Nanosheet Anode with Excellent Rate Capability and Long Cycle Life for High-Performance Lithium-Ion Batteries

Author:
Balogun, Muhammad-Sadeeq; Zhu, Yikun; Qiu, Weitao; Luo, Yang; Huang, Yongchao; Liang, Chaolun; Lu, Xihong; Tong, Yexiang
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25991-26003
ISSN:
1944-8252
Subject:
anodes; electrolytes; energy; hydrogenation; lithium; lithium batteries; nanosheets; titanium dioxide
Abstract:
... A new form of dual-phase heterostructured nanosheet comprised of oxygen-deficient TiO₂/Li₄Ti₅O₁₂ has been successfully synthesized and used as anode material for lithium ion batteries. With the three-dimensional (3D) Ti mesh as both the conducting substrate and the Ti³⁺/Ti⁴⁺ source, blue anatase Ti³⁺/TiO₂nanosheets were grown by a hydrothermal reaction. By controlling the chemical lithiation perio ...
DOI:
10.1021/acsami.5b09610

5. Detection and Monitoring of Amyloid Fibrillation Using a Fluorescence “Switch-On” Probe

Author:
Pradhan, Nibedita; Jana, Debabrata; Ghorai, Binay K.; Jana, Nikhil R.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25813-25820
ISSN:
1944-8252
Subject:
amyloid; color; early diagnosis; fluorescence; monitoring; nanoparticles; peptides; therapeutics
Abstract:
... Amyloid protein fibrillation is associated with a variety of neurodegenerative and other diseases, and their efficient detection and monitoring can greatly advance early diagnosis and therapy. Herein, we report a fluorescent “switch-on” probe for the reliable detection and monitoring of amyloid fibrils. The probe consists of a peptide component for binding with amyloid structure and a color compon ...
DOI:
10.1021/acsami.5b07751

6. Dynamic Peptide Library for the Discovery of Charge Transfer Hydrogels

Author:
Berdugo, Cristina; Nalluri, Siva Krishna Mohan; Javid, Nadeem; Escuder, Beatriu; Miravet, Juan F.; Ulijn, Rein V.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25946-25954
ISSN:
1944-8252
Subject:
alanine; electronics; fluorescence; high performance liquid chromatography; hydrogels; leucine; nanomaterials; peptide libraries; phenylalanine; rheology; spectroscopy; transmission electron microscopy; tyrosine; valine
Abstract:
... Coupling of peptide self-assembly to dynamic sequence exchange provides a useful approach for the discovery of self-assembling materials. In here, we demonstrate the discovery and optimization of aqueous, gel-phase nanostructures based on dynamically exchanging peptide sequences that self-select to maximize charge transfer of n-type semiconducting naphthalenediimide (NDI)-dipeptide bioconjugates w ...
DOI:
10.1021/acsami.5b08968

7. Enhancing the Directed Self-assembly Kinetics of Block Copolymers Using Binary Solvent Mixtures

Author:
Park, Woon Ik; Choi, Young Joong; Yun, Je Moon; Hong, Suck Won; Jung, Yeon Sik; Kim, Kwang Ho
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25843-25850
ISSN:
1944-8252
Subject:
annealing; composite polymers; heptane; mixing; nanomaterials; solvents; toluene
Abstract:
... The rapid pattern formation of well-ordered block copolymer (BCP) nanostructures is practical for next-generation nanolithography applications. However, there remain critical hurdles to achieve the rapid self-assembly of BCPs with a high Flory–Huggins interaction parameter (χ), owing to their slow kinetics. In this article, we report that a binary solvent vapor annealing methodology can significan ...
DOI:
10.1021/acsami.5b08162

8. Facile Synthesis of Novel Networked Ultralong Cobalt Sulfide Nanotubes and Its Application in Supercapacitors

Author:
Liu, Sangui; Mao, Cuiping; Niu, Yubin; Yi, Fenglian; Hou, Junke; Lu, Shiyu; Jiang, Jian; Xu, Maowen; Li, Changming
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25568-25573
ISSN:
1944-8252
Subject:
cobalt sulfide; electrochemistry; nanotubes; surfactants
Abstract:
... Ultralong cobalt sulfide (CoS₁.₀₉₇) nanotube networks are synthesized by a simple one-step solvothermal method without any surfactant or template. A possible formation mechanism for the growth processes is proposed. Owing to the hollow structure and large specific area, the novel CoS₁.₀₉₇ materials present outstanding electrochemical properties. Electrochemical measurements for supercapacitors sho ...
DOI:
10.1021/acsami.5b08716

9. Fast One-Pot Synthesis of MoS2/Crumpled Graphene p–n Nanonjunctions for Enhanced Photoelectrochemical Hydrogen Production

Author:
Carraro, Francesco; Calvillo, Laura; Cattelan, Mattia; Favaro, Marco; Righetto, Marcello; Nappini, Silvia; Píš, Igor; Celorrio, Verónica; Fermín, David J.; Martucci, Alessandro; Agnoli, Stefano; Granozzi, Gaetano
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25685-25692
ISSN:
1944-8252
Subject:
X-ray diffraction; aerosols; graphene; hydrogen; hydrogen production; nanocomposites; nanoparticles; nitrogen; scanning electron microscopy; synthesis; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Aerosol processing enables the preparation of hierarchical graphene nanocomposites with special crumpled morphology in high yield and in a short time. Using modular insertion of suitable precursors in the starting solution, it is possible to synthesize different types of graphene-based materials ranging from heteroatom-doped graphene nanoballs to hierarchical nanohybrids made up by nitrogen-doped ...
DOI:
10.1021/acsami.5b06668

10. Highly Selective and Sensitive Detection of Cu2+ Ions Using Ce(III)/Tb(III)-Doped SrF2 Nanocrystals as Fluorescent Probe

Author:
Sarkar, Shyam; Chatti, Manjunath; Adusumalli, Venkata N. K. B.; Mahalingam, Venkataramanan
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25702-25708
ISSN:
1944-8252
Subject:
EDTA (chelating agent); copper; detection limit; energy transfer; fluorescent dyes; ions; luminescence; metal ions; microwave radiation; nanocrystals; solvents
Abstract:
... We report a green synthetic approach to the synthesis of water dispersible Ce³⁺/Tb³⁺-doped SrF₂ nanocrystals, carried out using environment friendly microwave irradiation with water as solvent. The nanocrystals display strong green emission due to energy transfer from Ce³⁺ to Tb³⁺ ions. This strong green emission from Tb³⁺ ions is selectively quenched upon addition of Cu²⁺ ions, thus making the na ...
DOI:
10.1021/acsami.5b06730

11. High Performance Carbon Nanotube Yarn Supercapacitors with a Surface-Oxidized Copper Current Collector

Author:
Zhang, Daohong; Wu, Yunlong; Li, Ting; Huang, Yin; Zhang, Aiqing; Miao, Menghe
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25835-25842
ISSN:
1944-8252
Subject:
carbon nanotubes; collectors; cupric oxide; electrochemistry; electrodes; electrolytes; energy density; fabrics; gold; platinum; polymers; silver
Abstract:
... Threadlike linear supercapacitors have demonstrated high potential for constructing fabrics to power electronic textiles (eTextiles). To improve the cyclic electrochemical performance and to produce power fabrics large enough for practical applications, a current collector has been introduced into the linear supercapcitors to transport charges produced by active materials along the length of the s ...
DOI:
10.1021/acsami.5b08110

12. Hollow Nanostructured Metal Silicates with Tunable Properties for Lithium Ion Battery Anodes

Author:
Yu, Seung-Ho; Quan, Bo; Jin, Aihua; Lee, Kug-Seung; Kang, Soon Hyung; Kang, Kisuk; Piao, Yuanzhe; Sung, Yung-Eun
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25725-25732
ISSN:
1944-8252
Subject:
anodes; diameter; electrochemistry; lithium batteries; nanoparticles; nanosheets; nanospheres; silica; silicates
Abstract:
... Hollow nanostructured materials have attracted considerable interest as lithium ion battery electrodes because of their good electrochemical properties. In this study, we developed a general procedure for the synthesis of hollow nanostructured metal silicates via a hydrothermal process using silica nanoparticles as templates. The morphology and composition of hollow nanostructured metal silicates ...
DOI:
10.1021/acsami.5b07075

13. In Situ Control of Underwater-Pinning of Organic Droplets on a Surfactant-Doped Conjugated Polymer Surface

Author:
Xu, Wei; Xu, Jian; Choi, Chang-Hwan; Yang, Eui-Hyeok
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25608-25617
ISSN:
1944-8252
Subject:
chemical elements; cleaning; droplets; electric power; electrochemistry; engineering; polymers; water treatment
Abstract:
... Controlling the pinning of organic droplets on solid surfaces is of fundamental and practical interest in the field of material science and engineering, which has numerous applications such as surface cleaning, water treatment, and microfluidics. Here, a rapid in situ control of pinning and actuation of organic droplets is demonstrated on dodecylbenzenesulfonate-doped polypyrrole (PPy(DBS)) surfac ...
DOI:
10.1021/acsami.5b07589

14. Layer-Resolved Cation Diffusion and Stoichiometry at the LaAlO3/SrTiO3 Heterointerface Probed by X-ray Photoemission Experiments and Site Occupancy Modeling

Author:
Salvinelli, Gabriele; Drera, Giovanni; Giampietri, Alessio; Sangaletti, Luigi
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25648-25657
ISSN:
1944-8252
Subject:
X-radiation; X-ray photoelectron spectroscopy; cations; electron microscopy; models; stoichiometry; strontium
Abstract:
... The layer-resolved cation occupancy for different conducting and insulating interfaces of LaAlO₃ (LAO) thin films on SrTiO₃ (STO) has been determined by angle-resoled X-ray photoelectron spectroscopy (AR-XPS). Three STO interfaces with LAO have been considered, namely, a conducting interface with a 5 unit cell (u.c.) LAO layer, an insulating interface with a 5 u.c. LAO layer, and an insulating int ...
DOI:
10.1021/acsami.5b06094

15. Long-Cycle-Life Na-Ion Anodes Based on Amorphous Titania NanotubesInterfaces and Diffusion

Author:
Prutsch, Denise; Wilkening, Martin; Hanzu, Ilie
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25757-25769
ISSN:
1944-8252
Subject:
anodes; diameter; diffusivity; electrochemistry; ethylene glycol; ions; nanotubes; sodium; titanium dioxide
Abstract:
... Amorphous self-assembled titania nanotube layers are fabricated by anodization in ethylene glycol based baths. The nanotubes having diameters between 70–130 nm and lengths between 4.5–17 μm are assembled in Na-ion test cells. Their sodium insertion properties and electrochemical behavior with respect to sodium insertion is studied by galvanostatic cycling with potential limitation and cyclic volta ...
DOI:
10.1021/acsami.5b07508

16. Manganese Oxide-Based Chemically Powered Micromotors

Author:
Safdar, Muhammad; Wani, Owies M.; Jänis, Janne
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25580-25585
ISSN:
1944-8252
Subject:
catalytic activity; fuels; hydrogen peroxide; manganese dioxide; nanotechnology; platinum
Abstract:
... Chemically powered micromotors represent an exciting research area in nanotechnology. Such artificial devices are typically driven by catalytic bubble formation, taking place at the solid–liquid interface. Platinum has been most frequently used for the fabrication of different micromotors due to its superior catalytic efficiency. Other materials typically suffer from slow speeds and require very h ...
DOI:
10.1021/acsami.5b08789

17. Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy

Author:
Jovanović, Svetlana P.; Syrgiannis, Zois; Marković, Zoran M.; Bonasera, Aurelio; Kepić, Dejan P.; Budimir, Milica D.; Milivojević, Dušan D.; Spasojević, Vuk D.; Dramićanin, Miroslav D.; Pavlović, Vladimir B.; Todorović Marković, Biljana M.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25865-25874
ISSN:
1944-8252
Subject:
gamma radiation; graphene; irradiation; monitoring; optical properties; photochemotherapy; photoluminescence; photosensitizing agents; photostability; quantum dots; singlet oxygen; ultraviolet radiation
Abstract:
... Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of γ-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated ...
DOI:
10.1021/acsami.5b08226

18. Novel Nanocomposites of Poly(lauryl methacrylate)-Grafted Al2O3 Nanoparticles in LDPE

Author:
Cobo Sánchez, Carmen; Wåhlander, Martin; Taylor, Nathaniel; Fogelström, Linda; Malmström, Eva
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25669-25678
ISSN:
1944-8252
Subject:
aluminum oxide; extrusion; interphase; loss modulus; mechanical properties; mixing; molecular weight; nanocomposites; nanoparticles; polyethylene; polymerization; silanes
Abstract:
... Aluminum oxide nanoparticles (NPs) were surface-modified by poly(lauryl methacrylate) (PLMA) using surface-initiated atom-transfer radical polymerization (SI-ATRP) of lauryl methacrylate. Nanocomposites were obtained by mixing the grafted NPs in a low-density polyethylene (LDPE) matrix in different ratios. First, the NPs were silanized with different aminosilanes, (3-aminopropyl)triethoxysilane, a ...
DOI:
10.1021/acsami.5b06427

19. PdCu Nanoalloy Electrocatalysts in Oxygen Reduction Reaction: Role of Composition and Phase State in Catalytic Synergy

Author:
Wu, Jinfang; Shan, Shiyao; Luo, Jin; Joseph, Pharrah; Petkov, Valeri; Zhong, Chuan-Jian
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25906-25913
ISSN:
1944-8252
Subject:
X-ray diffraction; alloy nanoparticles; catalysts; catalytic activity; copper; electrochemistry; models; oxygen
Abstract:
... The catalytic synergy of nanoalloy catalysts depends on the nanoscale size, composition, phase state, and surface properties. This report describes findings of an investigation of their roles in the enhancement of electrocatalytic activity of PdCu alloy nanoparticle catalysts for oxygen reduction reaction (ORR). PdₙCu₁₀₀–ₙ nanoalloys with controlled composition and subtle differences in size and p ...
DOI:
10.1021/acsami.5b08478

20. Quasi-Solid Electrolytes for High Temperature Lithium Ion Batteries

Author:
Kalaga, Kaushik; Rodrigues, Marco-Tulio F.; Gullapalli, Hemtej; Babu, Ganguli; Arava, Leela Mohana Reddy; Ajayan, Pulickel M.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.46 pp. 25777-25783
ISSN:
1944-8252
Subject:
ambient temperature; clay; electrochemistry; electrodes; electrolytes; ionic liquids; lithium batteries; separators; thermal stability; wettability
Abstract:
... Rechargeable batteries capable of operating at high temperatures have significant use in various targeted applications. Expanding the thermal stability of current lithium ion batteries requires replacing the electrolyte and separators with stable alternatives. Since solid-state electrolytes do not have a good electrode interface, we report here the development of a new class of quasi-solid-state e ...
DOI:
10.1021/acsami.5b07636