Evaluation of a Collagen-Reactive Monomer with Advanced Bonding Durability

This study evaluated the use of a new collagen-reactive monomer (CRM), isocyanate-terminated urethane methacrylate precursor, which has covalent affinity to dental collagen, in the formation of dentin-resin bonds and compared it with 2 other dental adhesives. Dentin specimens were bonded with either the CRM-based adhesive (CBA), One-Step (OS; Bisco, Inc.), or a negative adhesive (NA) control and subjected to 24-h storage in water, thermocycling to simulate 1-y clinical function, or a matrix metalloproteinase–mediated aging process. We tested the microtensile bond strength (µTBS), characterized the bonding interface with an atomic force microscope, conducted micro-Raman analysis, and performed leakage tests and in situ zymography. CBA and OS exhibited comparable bonding strength after 24 h ( P > 0.05); however, there was a sharp decrease in µTBS after aging for all except CBA ( P < 0.001). Raman spectra results indicated increased collagen crosslinking and chemical reaction between the adhesive and collagen in the CBA group. CBA achieved high-quality hybridization with collagen, improving mechanical properties and integrity, and decreased the enzyme-mediated degradation of the bonding interface by inhibiting collagenolytic activity. With the promising bonding durability of coapplied CBA, CRM may be the first dental adhesive to provide strong and long-lasting resin-dental collagen bonding without the additional conditioning step. The use of CBA results in high-quality hybrid layers that protect the resin-dentin interface from harmful biological and chemical activities commonly occurring in the oral environment.

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One-Step and In-situ Decoration of High-Quality Graphene with Transition Metal Oxide Nanoparticles

Microscopy and Microanalysis ◽

10.1017/s1431927611008622 ◽

2011 ◽

Vol 17 (S2) ◽

pp. 1550-1551

Author(s):

W Qian ◽

S Cottingham ◽

Z Chen ◽

A Besser ◽

J Jiao

Keyword(s):

Transition Metal ◽

Metal Oxide ◽

Metal Oxide Nanoparticles ◽

Transition Metal Oxide ◽

Oxide Nanoparticles ◽

High Quality ◽

One Step

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.

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The interlocked in situ fabrication of graphene@prussian blue nanocomposite as high-performance supercapacitor

Dalton Transactions ◽

10.1039/c8dt02331j ◽

2018 ◽

Vol 47 (37) ◽

pp. 13126-13134 ◽

Cited By ~ 14

Author(s):

Shi-Cheng Wang ◽

Minli Gu ◽

Luqing Pan ◽

Junfeng Xu ◽

Lei Han ◽

...

Keyword(s):

Prussian Blue ◽

High Performance ◽

Great Promise ◽

High Quality ◽

In Situ Fabrication ◽

Excellent Electrochemical Performance ◽

One Step ◽

The One ◽

Method Show

High-quality graphene@prussian blue (G@PB) nanocomposite sheets fabricated via the one-step in situ hydrothermal method show great promise for energy-storage hybrid electrodes with excellent electrochemical performance.

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Preparation of High-Quality Graphene by Sodium Borohydride Reducing Stage-1 FeCl3-GIC via In Situ Hydrogen Exfoliation

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.744.458 ◽

2017 ◽

Vol 744 ◽

pp. 458-462

Author(s):

Xu Qiao ◽

Zhi Lin ◽

Yuan Yuan Si ◽

Xiao Dan Lin ◽

Shao Wei Cui ◽

...

Keyword(s):

Sodium Borohydride ◽

Single Layer ◽

Single Layer Graphene ◽

High Quality ◽

Force Microscopy ◽

Sem Image ◽

Exfoliated Graphene ◽

Atomic Force ◽

Stage 1

High-quality graphene is prepared via In Situ hydrogen exfoliation of the reaction of stage-1 FeCl3-GIC with sodium borohydride solution, followed by washings and sonication. The hydrogen evolved from the borohydride exfoliates the GIC and reduces defect structure in the graphene simultaneously, make it more conjugated. Raman spectrum results show the intensity ratio of the D and G peak is about 0.09, even smaller than that of the original graphite, which is 0.17. The only C1s peak locating at 284.9 eV in another way supports the only one structure in the graphene. SEM image of exfoliated graphene Fig. 2(f) shows that the graphene obtained has curly morphology, which is significantly different from graphite flakes. TEM of the graphene shows a single layer graphene and its overlap with other graphene. Atomic force microscopy (AFM) measure shows that the average thickness of graphene sheets is about 0.530 nm. Proving that the high quality graphene prepared is chiefly single layer. After compression molded into graphene mat, its conductivity reaches 2.85×105S/m, which is about one third of the theoretical value of graphene. This method is promising for mass production of high-quality graphene.

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One-step deposition of nano-to-micron-scalable, high-quality digital image correlation patterns for high-strain in-situ multi-microscopy testing

Strain ◽

10.1111/str.12330 ◽

2019 ◽

Vol 55 (6) ◽

pp. e12330 ◽

Cited By ~ 3

Author(s):

J.P.M. Hoefnagels ◽

M.P.F.H.L. van Maris ◽

T. Vermeij

Keyword(s):

Digital Image Correlation ◽

Digital Image ◽

High Strain ◽

Image Correlation ◽

High Quality ◽

One Step

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Application of Polyaniline for Flexible Semiconductors

Coatings ◽

10.3390/coatings11010049 ◽

2021 ◽

Vol 11 (1) ◽

pp. 49

Author(s):

Ana-Maria Mocioiu ◽

Ioan Albert Tudor ◽

Oana Cătălina Mocioiu

Keyword(s):

In Situ Polymerization ◽

Attenuated Total Reflectance ◽

Synthesis Methods ◽

Force Microscopy ◽

Atomic Force ◽

Structure Morphology ◽

Polystyrene Sulfonic Acid ◽

One Step ◽

Polymerization Method

“In situ” polymerization method was used to develop PANI-PSSA /textile. Polyaniline doped with polystyrene sulfonic acid (PANI-PSSA) used as coatings for textiles were obtained by aqueous and emulsion route. The emulsion route uses chloroform as solvent. Polymerization has been achieved in one step on the wool or polyamide textiles. For coated and uncoated textiles, dried at room temperature, were characterized structurally by Infrared Spectroscopy with Attenuated Total Reflectance (ATR), morphologically by Scanning Electron Microscopy (SEM), and by Atomic Force Microscopy (AFM) and electrically. The synthesis methods lead to differences in structure, morphology and properties of the coated polyamide and wool textiles.

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Epitaxial growth manner and structure of superconducting oxide films

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100173145 ◽

1990 ◽

Vol 48 (4) ◽

pp. 2-3

Author(s):

Yoshichika Bando ◽

Takahito Terashima ◽

Kenji Iijima ◽

Kazunuki Yamamoto ◽

Kazuto Hirata ◽

...

Keyword(s):

Ultrathin Films ◽

Film Surface ◽

High Energy ◽

Epitaxial Films ◽

Layer By Layer ◽

Initial Growth ◽

In Situ Growth ◽

High Quality ◽

Activated Reactive Evaporation

The high quality thin films of high-Tc superconducting oxide are necessary for elucidating the superconducting mechanism and for device application. The recent trend in the preparation of high-Tc films has been toward “in-situ” growth of the superconducting phase at relatively low temperatures. The purpose of “in-situ” growth is to attain surface smoothness suitable for fabricating film devices but also to obtain high quality film. We present the investigation on the initial growth manner of YBCO by in-situ reflective high energy electron diffraction (RHEED) technique and on the structural and superconducting properties of the resulting ultrathin films below 100Å. The epitaxial films have been grown on (100) plane of MgO and SrTiO, heated below 650°C by activated reactive evaporation. The in-situ RHEED observation and the intensity measurement was carried out during deposition of YBCO on the substrate at 650°C. The deposition rate was 0.8Å/s. Fig. 1 shows the RHEED patterns at every stage of deposition of YBCO on MgO(100). All the patterns exhibit the sharp streaks, indicating that the film surface is atomically smooth and the growth manner is layer-by-layer.

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