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You searched for: Journal ACS applied materials & interfaces Remove constraint Journal: ACS applied materials & interfaces Publication Year 2020 Remove constraint Publication Year: 2020 Subject Raman spectroscopy Remove constraint Subject: Raman spectroscopy
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1. Beehive-Inspired Macroporous SERS Probe for Cancer Detection through Capturing and Analyzing Exosomes in Plasma

Author:
Dong, Shilian; Wang, Yuhui; Liu, Zhengqi; Zhang, Wuwen; Yi, Kezhen; Zhang, Xingang; Zhang, Xiaolei; Jiang, Changzhong; Yang, Shikuan; Wang, Fubing; Xiao, Xiangheng
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 5136-5146
ISSN:
1944-8252
Subject:
Raman spectroscopy; Western blotting; biopsy; carcinogenesis; chemical bonding; colon; diagnostic techniques; exosomes; liver; lungs; monitoring; neoplasms; opal; patients; people; phosphoproteins; porous media; protein phosphorylation; titanium dioxide
Abstract:
... The protein phosphorylation status of exosomes can regulate the activity and function of proteins related to cancer development, and it is highly possible to diagnose cancers through analyzing the protein phosphorylation status. However, monitoring the protein phosphorylation status with a simple and label-free method is still clinically challenging. Here, inspired by beehives, we developed an Au- ...
DOI:
10.1021/acsami.9b21333

2. Investigation of the Oxidation Behavior of Graphene/Ge(001) Versus Graphene/Ge(110) Systems

Author:
Akhtar, Fatima; Dabrowski, Jaroslaw; Lisker, Marco; Yamamoto, Yuji; Mai, Andreas; Wenger, Christian; Lukosius, Mindaugas
Source:
ACS applied materials & interfaces 2020 v.12 no.2 pp. 3188-3197
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; air; graphene; oxidation; oxygen; scanning electron microscopy; vapors
Abstract:
... The oxidation behavior of Ge(001) and Ge(110) surfaces underneath the chemical vapor deposition (CVD)-grown graphene films has been investigated experimentally and interpreted on the basis of ab initio calculations. Freshly grown samples were exposed to air for more than 7 months and periodically monitored by X-ray photoelectron spectroscopy, scanning electron microscopy, and Raman spectroscopy. T ...
DOI:
10.1021/acsami.9b18448

3. Introduction of Siloxane-Terminated Side Chains into Semiconducting Polymers To Tune Phase Separation with Nonfullerene Acceptor for Polymer Solar Cells

Author:
Wang, Qian; Hu, Zelong; Wu, Zhuhao; Lin, Yanrui; Zhang, Lianjie; Liu, Linlin; Ma, Yuguang; Cao, Yong; Chen, Junwu
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 4659-4672
ISSN:
1944-8252
Subject:
Raman spectroscopy; composite polymers; contact angle; energy; engineering; guidelines; semiconductors; separation; solar cells; solar energy; transmission electron microscopy
Abstract:
... In this work, five PTB7-Th-based conjugated polymers (PTB7-Th, PTBSi20, PTBSi25, PTBSi33, and PTBSi100) with different contents of siloxane-terminated pentyl side chain were synthesized, and properties of corresponding blend films with narrow band gap nonfullerene IEICO-4F acceptor were extensively investigated. According to the contact angle testing, the PTB7-Th with 100% alkyl side chain and PTB ...
DOI:
10.1021/acsami.9b18963

4. CaO-Promoted Graphene-Supported Palladium Nanocrystals as a Universal Electrocatalyst for Direct Liquid Fuel Cells

Author:
Shamraiz, Umair; Ahmad, Zeeshan; Raza, Bareera; Badshah, Amin; Ullah, Sajid; Nadeem, Muhammad Arif
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 4396-4404
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; atomic absorption spectrometry; calcium oxide; carbon monoxide; catalysts; catalytic activity; electrochemistry; energy-dispersive X-ray analysis; ethanol; formic acid; fuel cells; graphene; graphene oxide; liquids; methanol; nanocrystals; oxidation; palladium; scanning electron microscopy; sodium borohydride; transmission electron microscopy
Abstract:
... Here, we present the fabrication of a reduced graphene oxide-supported PdCa (PdCa/rGO) alloyed catalyst via a NaBH₄ reduction method for direct alcohol fuel cells in basic medium and direct formic acid fuel cells in acidic medium. Powder X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron mic ...
DOI:
10.1021/acsami.9b16151

5. Sandwich-Like Sensor for the Highly Specific and Reproducible Detection of Rhodamine 6G on a Surface-Enhanced Raman Scattering Platform

Author:
Wang, Jing; Li, Jingyi; Zeng, Chuan; Qu, Qi; Wang, Mengfan; Qi, Wei; Su, Rongxin; He, Zhimin
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 4699-4706
ISSN:
1944-8252
Subject:
Raman spectroscopy; binding sites; electric field; mass transfer; molecular imprinting; nanogold; oil-water interface; orange juice; polymers; rhodamines
Abstract:
... Nonspecificity and low reproducibility are always the main challenges in surface-enhanced Raman scattering (SERS) detection, especially for testing real samples. In this study, we developed a sandwich-like sensor (AuA-pMIP) to detect rhodamine 6G (R6G) by integrating a porous molecularly imprinted polymer (pMIP) with a well-ordered AuNP array (AuA). To form a uniformly distributed hot spot, AuA wa ...
DOI:
10.1021/acsami.9b16773

6. In Situ Growth of Metal–Organic Framework HKUST-1 on Graphene Oxide Nanoribbons with High Electrochemical Sensing Performance in Imatinib Determination

Author:
Rezvani Jalal, Nahid; Madrakian, Tayyebeh; Afkhami, Abbas; Ghoorchian, Arash
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 4859-4869
ISSN:
1944-8252
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; antineoplastic agents; blood serum; calibration; coordination polymers; detection limit; dielectric spectroscopy; electrochemistry; glassy carbon electrode; graphene; graphene oxide; nanomaterials; scanning electron microscopy; sensors (equipment); surface area; transmission electron microscopy; urine; voltammetry
Abstract:
... Metal–organic frameworks (MOFs) have been previously investigated as electrode materials for developing electrochemical sensors. They have usually been reported to suffer from poor conductivity and improvement in the conductivity of MOFs is still a great challenge. Here, we reported the fabrication of an electrochemical sensor based on the in situ growth of framework HKUST-1 on conductive graphene ...
DOI:
10.1021/acsami.9b18097

7. Disordered Nonlinear Metalens for Raman Spectral Nanoimaging

Author:
Kharintsev, Sergey S.; Kharitonov, Anton V.; Gazizov, Almaz R.; Kazarian, Sergei G.
Source:
ACS applied materials & interfaces 2020 v.12 no.3 pp. 3862-3872
ISSN:
1944-8252
Subject:
Raman spectroscopy; carbon nanotubes; color; films (materials); image analysis; nanocomposites; nitrides; surface plasmon resonance; titanium; titanium dioxide; wavelengths
Abstract:
... Over the past decades, considerable progress has been made toward far-field optical imaging beyond the diffraction limit. However, most working proof-of-concepts are based on either time-consuming scanning of a subdiffraction focal spot over a sample or postrecovery treatment using a priori information on a sought image. To our knowledge, none of these can be regarded as being close to a perfect f ...
DOI:
10.1021/acsami.9b19555

8. Mesoporous Molybdenum–Tungsten Mixed Metal Oxide: A Solid Acid Catalyst for Green, Highly Efficient sp³–sp² C–C Coupling Reactions

Author:
Thalgaspitiya, Wimalika R. K.; Kapuge, Tharindu Kankanam; He, Junkai; Rathnayake, Dinithi; Kerns, Peter; Suib, Steven L.
Source:
ACS applied materials & interfaces 2020 v.12 no.5 pp. 5990-5998
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; benzyl alcohol; catalysts; catalytic activity; energy-dispersive X-ray analysis; micelles; molybdenum; oxidation; porous media; scanning electron microscopy; surface area; surfactants; toluene; transmission electron microscopy; tungsten
Abstract:
... A mesoporous molybdenum tungsten mixed metal oxide with high surface area (173 m²/g) was synthesized by using metal dissolution coupled with a surfactant assisted reverse micelle formation synthesis method. Comprehensive characterization of the mixed oxide was performed by using PXRD, Raman, BET, SEM, EDX, TEM, and XPS. Thus, the formation of α-Mo₀.₅W₀.₅O₃ with a homogeneous distribution of Mo and ...
DOI:
10.1021/acsami.9b21633

9. Nanopattern-Assisted Direct Growth of Peony-like 3D MoS₂/Au Composite for Nonenzymatic Photoelectrochemical Sensing

Author:
Jalali, Mahsa; Moakhar, Roozbeh Siavash; Abdelfattah, Tamer; Filine, Elizabeth; Mahshid, Sahar Sadat; Mahshid, Sara
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 7411-7422
ISSN:
1944-8252
Subject:
Raman spectroscopy; crystal structure; detection limit; electric field; electrical conductivity; electrochemistry; electrodes; energy-dispersive X-ray analysis; glucose; gold; molybdenum disulfide; nanocomposites; nanogold; nanosheets; optical properties; photocatalysis; titanium dioxide; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... The chalcogenide material MoS₂ has been recognized as a promising candidate for photoelectrochemical (PEC) applications due to its enhanced photocatalytic and electrocatalytic activities. However, few reports have been focused on the designated catalytic MoS₂ for the nonenzymatic PEC sensing of small molecules. Here, we report on a novel in situ and fab-free method for the direct growth of three-d ...
DOI:
10.1021/acsami.9b17449

10. Understanding the Role of Nanoscale Heterointerfaces in Core/Shell Structures for Water Splitting: Covalent Bonding Interaction Boosts the Activity of Binary Transition-Metal Sulfides

Author:
Zhang, Songge; Li, Yong; Zhu, Han; Lu, Shuanglong; Ma, Piming; Dong, Weifu; Duan, Fang; Chen, Mingqing; Du, Mingliang
Source:
ACS applied materials & interfaces 2020 v.12 no.5 pp. 6250-6261
ISSN:
1944-8252
Subject:
Raman spectroscopy; active sites; adsorption; anodes; catalysts; catalytic activity; cathodes; chemical bonding; electric potential difference; electrochemistry; electron paramagnetic resonance spectroscopy; electrons; hydrogen production; models; oxygen production; sulfides
Abstract:
... The appropriate catalyst model with a precisely designed interface is highly desirable for revealing the real active site at the atomic level. Herein, we report a proof-of-concept strategy for creating an exposed and embedding interface model by constructing a unique Co₉S₈ core with a full WS₂ shell (Co₉S₈/FWS₂) and a half WS₂ shell (Co₉S₈/HWS₂) to uncover the synergistic effect of heterointerface ...
DOI:
10.1021/acsami.9b19382

11. Additive Manufacturing of Optical Quality Germania–Silica Glasses

Author:
Sasan, Koroush; Lange, Andrew; Yee, Timothy D.; Dudukovic, Nikola; Nguyen, Du T.; Johnson, Michael A.; Herrera, Oscar D.; Yoo, Jae Hyuck; Sawvel, April M.; Ellis, Megan Elizabeth; Mah, Christopher M.; Ryerson, Rick; Wong, Lana L.; Suratwala, Tayyab; Destino, Joel F.; Dylla-Spears, Rebecca
Source:
ACS applied materials & interfaces 2020 v.12 no.5 pp. 6736-6741
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; catalytic activity; ceramics; feedstocks; manufacturing; nuclear magnetic resonance spectroscopy; refractive index; silica; sol-gel processing; solvents; three-dimensional printing; viscoelasticity
Abstract:
... Direct ink writing (DIW) three-dimensional (3D) printing provides a revolutionary approach to fabricating components with gradients in material properties. Herein, we report a method for generating colloidal germania feedstock and germania–silica inks for the production of optical quality germania–silica (GeO₂–SiO₂) glasses by DIW, making available a new material composition for the development of ...
DOI:
10.1021/acsami.9b21136

12. Dynamically Tunable Plasmonic Band for Reversible Colorimetric Sensors and Surface-Enhanced Raman Scattering Effect with Good Sensitivity and Stability

Author:
Men, Dandan; Liu, Guangqiang; Xing, Changchang; Zhang, Honghua; Xiang, Junhuai; Sun, Yiqiang; Hang, Lifeng
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 7494-7503
ISSN:
1944-8252
Subject:
Raman spectroscopy; color; colorimetry; hydrogels; nanogold; nanoparticles; polyacrylamide; standard deviation; thiram; water content
Abstract:
... A colorimetric sensor based on plasmonic nanoparticles (NPs) is a promising and convenient detection tool, but its reproducibility and adjustability remain a challenge because the NPs are mainly random and uncontrollable. Herein, a colorimetric sensor with good reversibility and reproducibility was prepared by embedding the two-dimensional (2D) Au NP arrays on the surface of the polyacrylamide hyd ...
DOI:
10.1021/acsami.9b23172

13. Charge Transfer-Mediated Blue Luminescence in Plasmonic Ag–Cu₂O Quantum Nanoheterostructures

Author:
Ghose, Srabantika; Singh, Sudarshan; Bhattacharya, Tara Shankar
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 7727-7735
ISSN:
1944-8252
Subject:
Raman spectroscopy; cuprous oxide; electrons; luminescence; nanosilver; semiconductors; silver
Abstract:
... Metal–semiconductor hybrid nanoheterostructures have the possibility to exhibit new synergic properties other than the combination of properties from discrete components due to the interaction of metal and semiconductor components at the interfaces. Here, we have synthesized Ag–Cu₂O eyeball-shaped quantum nanoheterostructures with diameter ranging between 8 and 12 nm using a single-step low-cost s ...
DOI:
10.1021/acsami.9b19626

14. Quantitative Interpretation of Hydration Dynamics Enabled the Fabrication of a Zwitterionic Antifouling Surface

Author:
Choi, Woojin; Jin, Jie; Park, Sohyeon; Kim, Ji-Yeong; Lee, Myung-Jin; Sun, Hyeongdeok; Kwon, Jae-Sung; Lee, Hwankyu; Choi, Sung-Hwan; Hong, Jinkee
Source:
ACS applied materials & interfaces 2020 v.12 no.7 pp. 7951-7965
ISSN:
1944-8252
Subject:
Raman spectroscopy; adsorption; antibacterial properties; antifouling activities; bacteria; biofilm; choline; contact angle; industry; medical equipment; models; molecular dynamics; phosphates; physical properties; proteins; strength (mechanics); zwitterions
Abstract:
... In the medical industry, zwitterionic brushes have received significant attention owing to their antifouling effect that arose from their hydration ability. However, sufficient understanding of the hydration dynamics of zwitterionic brushes is required to fabricate the precisely controlled antifouling medical devices. In this paper, we successfully show that hydration, the interaction between wate ...
DOI:
10.1021/acsami.9b21566

15. Label-Free Surface-Enhanced Raman Spectroscopy Biosensor for On-Site Breast Cancer Detection Using Human Tears

Author:
Kim, Soogeun; Kim, Tae Gi; Lee, Soo Hyun; Kim, Wansun; Bang, Ayoung; Moon, Sang Woong; Song, Jeongyoon; Shin, Jae-Ho; Yu, Jae Su; Choi, Samjin
Source:
ACS applied materials & interfaces 2020 v.12 no.7 pp. 7897-7904
ISSN:
1944-8252
Subject:
Raman spectroscopy; algorithms; biosensors; breast neoplasms; chemical species; gold; humans; multivariate analysis; nanospheres; polystyrenes; prediction; screening; spectrometers; standard deviation; tears
Abstract:
... Surface-enhanced Raman scattering (SERS) is an ultrasensitive molecular screening technique with greatly enhanced Raman scattering signals from trace amounts of analytes near plasmonic nanostructures. However, research on the development of a sensor that balances signal enhancement, reproducibility, and uniformity has not yet been proposed for practical applications. In this study, we demonstrate ...
DOI:
10.1021/acsami.9b19421

16. Paper-Based SERS Sensing Platform Based on 3D Silver Dendrites and Molecularly Imprinted Identifier Sandwich Hybrid for Neonicotinoid Quantification

Author:
Zhao, Peini; Liu, Huanying; Zhang, Lina; Zhu, Peihua; Ge, Shenguang; Yu, Jinghua
Source:
ACS applied materials & interfaces 2020 v.12 no.7 pp. 8845-8854
ISSN:
1944-8252
Subject:
Raman spectroscopy; automation; detection limit; electromagnetic field; food security; imidacloprid; lightning; molecular imprinting; monitoring; nanoparticles; nanosilver; paper; pesticide residues; screening; silver; sustainable development
Abstract:
... Real-time monitoring of neonicotinoid pesticide residues is of great significance for food security and sustainable development of the ecological environment. Herein, a paper-based surface-enhanced Raman scattering (SERS) amplified approach was proposed by virtue of multilayered plasmonic coupling amplification. The unique plasmonic SERS multilayer was constructed using three-dimensional (3D) silv ...
DOI:
10.1021/acsami.9b20341

17. Polymer Brushes on Graphitic Carbon Nitride for Patterning and as a SERS Active Sensing Layer via Incorporated Nanoparticles

Author:
Sheng, Wenbo; Li, Wei; Tan, Deming; Zhang, Panpan; Zhang, En; Sheremet, Evgeniya; Schmidt, Bernhard V.K.J.; Feng, Xinliang; Rodriguez, Raul D.; Jordan, Rainer; Amin, Ihsan
Source:
ACS applied materials & interfaces 2020 v.12 no.8 pp. 9797-9805
ISSN:
1944-8252
Subject:
Raman spectroscopy; biosensors; carbon nitride; dispersibility; dyes; energy; ethanol; graphene; moieties; nanoparticles; nanosilver; photocatalysis; pollutants; polymerization; polymers; remediation; solvents; tetrahydrofuran; wastes
Abstract:
... Graphitic carbon nitride (gCN) has a broad range of promising applications, from energy harvesting and storage to sensing. However, most of the applications are still restricted due to gCN poor dispersibility and limited functional groups. Herein, a direct photografting of gCN using various polymer brushes with tailorable functionalities via UV photopolymerization at ambient conditions is demonstr ...
DOI:
10.1021/acsami.9b21984
PubMed:
31999093
PubMed Central:
PMC7050013

18. Fluorinated Thiophene-Phenylene Co-Oligomers for Optoelectronic Devices

Author:
Sosorev, Andrey Yu.; Trukhanov, Vasiliy A.; Maslennikov, Dmitry R.; Borshchev, Oleg V.; Polyakov, Roman A.; Skorotetcky, Maxim S.; Surin, Nikolay M.; Kazantsev, Maxim S.; Dominskiy, Dmitry I.; Tafeenko, Viktor A.; Ponomarenko, Sergey A.; Paraschuk, Dmitry Yu.
Source:
ACS applied materials & interfaces 2020 v.12 no.8 pp. 9507-9519
ISSN:
1944-8252
Subject:
Raman spectroscopy; absorbance; crystals; electrochemiluminescence; electrons; energy; films (materials); photoluminescence; transistors; voltammetry
Abstract:
... Organic optoelectronics requires materials combining bright luminescence and efficient ambipolar charge transport. Thiophene-phenylene co-oligomers (TPCOs) are promising highly emissive materials with decent charge-carrier mobility; however, they typically show poor electron injection in devices, which is usually assigned to high energies of their lowest unoccupied molecular orbitals (LUMOs). A wi ...
DOI:
10.1021/acsami.9b20295

19. Novel Charging-Optimized Cathode for a Fast and High-Capacity Zinc-Ion Battery

Author:
Li, Zhi; Wu, Buke; Yan, Mengyu; He, Liang; Xu, Lin; Zhang, Guobin; Xiong, Tengfei; Luo, Wen; Mai, Liqiang
Source:
ACS applied materials & interfaces 2020 v.12 no.9 pp. 10420-10427
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; active sites; batteries; cathodes; electrochemistry; energy; mass spectrometry
Abstract:
... A rechargeable aqueous zinc-ion battery (ZIB) is one of the attractive candidates for large-scale energy storage. Its further application relies on the exploitation of a high-capacity cathode and the understanding of an intrinsic energy storage mechanism. Herein, we report a novel layered K₂V₃O₈ cathode material for the ZIB, adopting a strategy of charging first to extract part of K-ions from vana ...
DOI:
10.1021/acsami.9b21579

20. Branched Alkylamine–Reduced Graphene Oxide Hybrids as a Dual Proton–Electron Conductor and Organic-Only Water-Splitting Photocatalyst

Author:
Karim, Mohammad Razaul; Rahman, Mohammed M.; Asiri, Abdullah M.; Hayami, Shinya
Source:
ACS applied materials & interfaces 2020 v.12 no.9 pp. 10829-10838
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; butylamine; graphene; graphene oxide; hydrogen; hydrogen bonding; methylamine; nitrogen; photocatalysis; photocatalysts; semiconductors; thermogravimetry
Abstract:
... We report multifunctionalities including the solid electrolytic property, electron conductivity (EnC), and photocatalytic water splitting (PWS) ability of organic-only hybrids obtained by intercalating short and branched-chain alkylamines including methylamine (MA), butylamine (BA), pentylamine (PA), and isomethylbytylamine (IMBA) in reduced graphene oxide (rGO). The alkylamine–rGO hybrids were sy ...
DOI:
10.1021/acsami.9b21200