Laser direct writing of palladium on polyimide surfaces from solution

Kordás, Krisztián; Bali, K.; Leppävuori, S.; Uusimäki, A.; Nánai, L.

doi:10.1016/s0169-4332(99)00326-8

Cited by 17 publications

(4 citation statements)

References 21 publications

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“…Isothermal titration calorimetry (ITC) was used in order to explore the mechanism of formation of the CFP [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. ITC is a physical technique used to determine the thermodynamic parameters of interactions in solution.…”

Section: Introductionmentioning

confidence: 99%

Origin and Formation Mechanism Investigation of Compound Precipitation from the Traditional Chinese Prescription Huang-Lian-Jie-Du-Tang by Isothermal Titration Calorimetry

Wang

Xiang

et al. 2017

Molecules

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Previous studies have shown that compounds in the form of precipitate (CFP) from Huang-Lian-Jie-Du-Tang (HLJDT) were stable, and the CFP content reached 2.63% of the whole decoction and had good neuroprotective effects. However, there has been no research on their specific source. In this study, it was found that HLJDT CFP mainly came from the reaction of Scutellaria baicalensis and Coptis chinensis by studying the separated prescription components (accounting for 81.33% of HLJDT CFP). Unlike previous studies on HLJDT CFP, in this research the chemical composition of Scutellaria baicalensis–Coptis chinensis (SB–CC) CFP was identified by high performance liquid chromatography coupled with mass spectrometry (HPLC-MSn), which further proved that the main source of HLJDT CFP was Scutellaria baicalensis–Coptis chinensis CFP compared with previous HLJDT CFP studies. To explain the reaction mechanism between the decoctions of Scutellaria baicalensis and Coptis chinensis, isothermal titration calorimetry (ITC) was used to analyze their binding heat and the thermodynamic parameters (ΔH, ΔS, ΔG, n, Ka) of the reaction between baicalin and berberine, which are the main components of Scutellaria baicalensis and Coptis chinensis, respectively. The results showed that the reaction between decoctions of Scutellaria baicalensis and Coptis chinensis was exothermic and the reaction between baicalin and berberine was a spontaneous and enthalpy-driven chemical reaction, the binding ratio being 1:1. In addition, HLJDT CFP (EC50 = 14.71 ± 0.91 µg/mL) and SB-CC CFP (EC50 = 6.11 ± 0.12 µg/mL) showed similar protective activities on PC12 cells injured by cobalt chloride (CoCl2). This study provided a new angle to research on the main chemical components and therapeutic values of CFP in Traditional Chinese Medicine compounds.

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Section: Introductionmentioning

confidence: 99%

Origin and Formation Mechanism Investigation of Compound Precipitation from the Traditional Chinese Prescription Huang-Lian-Jie-Du-Tang by Isothermal Titration Calorimetry

Wang

Xiang

et al. 2017

Molecules

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“…Materials’ processing by means of lasers has experienced a considerable burst in the last years thanks to the incorporation of new laser tools (e.g., femtosecond lasers) and the development of hybrid technologies, where laser treatments are complemented with the incorporation of additional processes. − The achieved synergies have given rise to innovative procedures that are being progressively incorporated in the industry. , Unlike conventional annealing (e.g., using furnaces), where phases at thermodynamic equilibrium are obtained, laser-mediated procedures provide kinetic control over the formation of metastable states, as well as high temporal and spatial selectivity . As a consequence, the use of lasers in the field of ceramics has considerably increased in the last years, as exemplified with specific procedures for the fabrication of ceramic powders, the machining of structural ceramics, , and the improvement of mechanical properties .…”

Section: Introductionmentioning

confidence: 99%

Laser Treatment of Nanoparticulated Metal Thin Films for Ceramic Tile Decoration

Rico

Lahoz²,

Rey-García

et al. 2016

ACS Appl. Mater. Interfaces

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“…Palladium is also catalytically active, and the ability to pattern it may be useful in catalysis. 9,10 Although the resistivity of palladium is a factor of 5 greater than that of gold, palladium is used commonly in microelectronic devices such as capacitors, resistors, and contacts. Patterned films and colloids of palladium serve as seed layers for the electroless deposition of copper to form electrical interconnects.…”

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confidence: 99%

“…Patterned films and colloids of palladium serve as seed layers for the electroless deposition of copper to form electrical interconnects. 9,11,12 Many alloys of palladium are used routinely in microelectronic devices-e.g., in resistors ͑AgPd͒ and finishes ͑NiPd and CoPd͒. 5 We prepared the substrates by e-beam evaporation of titanium ͑2 nm, 1 Å/s, as an adhesion layer͒ and then palladium ͑25 nm, 8 Å/s͒ onto a 3 in.…”

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confidence: 99%

Fabrication of palladium-based microelectronic devices by microcontact printing

Wolfe

Love

Paul

et al. 2002

Applied Physics Letters

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This letter demonstrates the patterning of thin films of metallic palladium by microcontact printing ͑CP͒ of octadecanethiol, and the use of the patterned films in the fabrication of a functional sensor. This technique was also used to prepare templates of palladium for the electroless deposition of copper. The resistivity of the palladium and copper microstructures was 13.8 and 2.8 ⍀ cm, respectively; these values are approximately 40% larger than the values for the pure bulk metals. Palladium patterned into serpentine wires using CP functioned as a hydrogen sensor with sensitivity of 0.03 vol % H 2 in N 2 , and a response time of ϳ10 s ͑at room temperature͒.

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Laser direct writing of palladium on polyimide surfaces from solution

Cited by 17 publications

References 21 publications

Origin and Formation Mechanism Investigation of Compound Precipitation from the Traditional Chinese Prescription Huang-Lian-Jie-Du-Tang by Isothermal Titration Calorimetry

Origin and Formation Mechanism Investigation of Compound Precipitation from the Traditional Chinese Prescription Huang-Lian-Jie-Du-Tang by Isothermal Titration Calorimetry

Laser Treatment of Nanoparticulated Metal Thin Films for Ceramic Tile Decoration

Fabrication of palladium-based microelectronic devices by microcontact printing

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