UV- and RIR-MAPLE: Fundamentals and Applications

Caricato, Anna Paola; Ge, Wangyao

doi:10.1007/978-3-319-96845-2_10

Cited by 12 publications

(13 citation statements)

References 141 publications

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“…A comprehensive review [ 25 , 26 ] of proteins deposited via MAPLE demonstrates the efficiency of this technique. However, to date it has never been used for the deposition of metalloproteins, such as hemoglobin and myoglobin.…”

Section: Methodsmentioning

confidence: 99%

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A Surface Plasmon Resonance Biosensor Based on Directly Immobilized Hemoglobin and Myoglobin

Dyankov

Borisova

Belina

et al. 2020

Sensors

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Immobilization of proteins on a surface plasmon resonance (SPR) transducer is a delicate procedure since loss of protein bioactivity can occur upon contact with the untreated metal surface. Solution to the problem is the use of an immobilization matrix having a complex structure. However, this is at the expense of biosensor selectivity and sensitivity. It has been shown that the matrix-assisted pulsed laser evaporation (MAPLE) method has been successfully applied for direct immobilization (without a built-in matrix) of proteins, preserving their bioactivity. So far, MAPLE deposition has not been performed on a gold surface as required for SPR biosensors. In this paper we study the impact of direct immobilization of heme proteins (hemoglobin (Hb) and myoglobin (Mb)) on their bioactivity. For the purpose, Hb and Mb were directly immobilized by MAPLE technique on a SPR transducer. The bioactivity of the ligands immobilized in the above-mentioned way was assessed by SPR registration of the molecular reactions of various Hb/Mb functional groups. By SPR we studied the reaction between the beta chain of the Hb molecule and glucose, which shows the structural integrity of the immobilized Hb. A supplementary study of films deposited by FTIR and AFM was provided. The experimental facts showed that direct immobilization of an intact molecule was achieved.

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Section: Methodsmentioning

confidence: 99%

“…However, this statement is valid for conventional methods of immobilization. The matrix-assisted pulsed laser evaporation (MAPLE) method [ 24 ] has been successfully applied for deposition of proteins, preserving their bioactivity [ 25 , 26 ]. Blood proteins have been MAPLE-deposited with excellent results [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

A Surface Plasmon Resonance Biosensor Based on Directly Immobilized Hemoglobin and Myoglobin

Dyankov

Borisova

Belina

et al. 2020

Sensors

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“…Resonant with the vibrational modes of the hydroxyl bonds from water, the energy of the laser photons (λ = 2.94 µm) is mainly absorbed by these chemical bonds, the degradation of the organic materials, especially of the polymers, being limited. As is expected, the solvent type and its properties have a great influence on the properties of the deposited organic layers [61,64]. In all the MAPLE-based techniques, parameters such as laser wavelength, laser fluence, laser pulse duration, repetition rate, substrate-target distance, substrate temperature (if appropriate), background pressure, composition of the target matrix, organic material concentration, etc., influence the properties of the deposited layers [60,71,72].…”

Section: Introductionmentioning

confidence: 99%

“…In order to avoid the photochemical degradation that can appear in the case of conjugated polymers, Resonant Infrared-MAPLE (RIR-MAPLE) and emulsion-based RIR-MAPLE [37,49,61] methods were developed, in these cases, with lower energy infrared (IR) lasers being used. The benefits and drawbacks of each MAPLE-based technique are extensively discussed in the literature [57,[62][63][64][65][66][67]. Hence, regardless of the used laser's wavelength, the following steps are involved in the MAPLE process: (i) preparation of the organic material-solvent mix-ture, both components being carefully selected to accomplish the requirements mentioned above, (ii) preparation of the frozen target by immersing the mixture in liquid nitrogen and (iii) vaporization of the target as a result of the interaction with the laser beam, the ejection of the solvent and organic molecules and finally the deposition of the organic molecules on the substrates while the solvent molecules are pumped outside by the vacuum system [59,64].…”

Section: Introductionmentioning

confidence: 99%

“…The benefits and drawbacks of each MAPLE-based technique are extensively discussed in the literature [57,[62][63][64][65][66][67]. Hence, regardless of the used laser's wavelength, the following steps are involved in the MAPLE process: (i) preparation of the organic material-solvent mix-ture, both components being carefully selected to accomplish the requirements mentioned above, (ii) preparation of the frozen target by immersing the mixture in liquid nitrogen and (iii) vaporization of the target as a result of the interaction with the laser beam, the ejection of the solvent and organic molecules and finally the deposition of the organic molecules on the substrates while the solvent molecules are pumped outside by the vacuum system [59,64]. In the case of RIR-MAPLE, the organic material and the solvent are chosen in correlation with the laser wavelength.…”

Section: Introductionmentioning

confidence: 99%

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Organic Thin Films Deposited by Matrix-Assisted Pulsed Laser Evaporation (MAPLE) for Photovoltaic Cell Applications: A Review

2021

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Human society’s demand for energy has increased faster in the last few decades due to the world’s population growth and economy development. Solar power can be a part of a sustainable solution to this world’s energy need, taking into account that the cost of the renewable energy recently dropped owed to the remarkable progress achieved in the solar panels field. Thus, this inexhaustible source of energy can produce cheap and clean energy with a beneficial impact on the climate change. The considerable potential of the organic photovoltaic (OPV) cells was recently emphasized, with efficiencies exceeding 18% being achieved for OPV devices with various architectures. The challenges regarding the improvement in the OPV performance consist of the selection of the adequate raw organic compounds and manufacturing techniques, both strongly influencing the electrical parameters of the fabricated OPV devices. At the laboratory level, the solution-based techniques are used in the preparation of the active films based on polymers, while the vacuum evaporation is usually involved in the deposition of small molecule organic compounds. The major breakthrough in the OPV field was the implementation of the bulk heterojunction concept but the deposition of mixed films from the same solvent is not always possible. Therefore, this review provides a survey on the development attained in the deposition of organic layers based on small molecules compounds, oligomers and polymers using matrix-assisted pulsed laser evaporation (MAPLE)-based deposition techniques (MAPLE, RIR-MAPLE and emulsion-based RIR-MAPLE). An overview of the influence of various experimental parameters involved in these laser deposition methods on the properties of the fabricated layers is given in order to identify, in the forthcoming years, new strategies for enhancing the OPV cells performance.

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Epitaxially crystallized polyethylene exhibiting near‐equilibrium melting temperatures*

Wang

Liu

et al. 2022

Polymer Engineering & Sci

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The morphology and orientation of polymer crystals are important factors which determine the performance of thin-film, polymer-based technologies such as organic electronic devices and gas separation membranes. Here, we utilize polymer-substrate epitaxy to achieve a highly oriented crystalline morphology during thin-film processing. To accomplish this, we employ matrixassisted pulsed laser evaporation (MAPLE), a slow physical vapor deposition process, to deposit linear polyethylene epitaxially atop a graphene substrate.Via MAPLE, we demonstrate the ability to achieve a film morphology comprised of well-aligned, edge-on crystalline lamellae. Furthermore, we show that MAPLE can be exploited to grow crystalline lamellae composed entirely of extended polymer chains which exhibit a near-equilibrium melting temperature. Our study demonstrates that MAPLE, as a bottom-up approach, can deposit polymer thin films with improved control over crystalline morphology.

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UV- and RIR-MAPLE: Fundamentals and Applications

Cited by 12 publications

References 141 publications

A Surface Plasmon Resonance Biosensor Based on Directly Immobilized Hemoglobin and Myoglobin

A Surface Plasmon Resonance Biosensor Based on Directly Immobilized Hemoglobin and Myoglobin

Organic Thin Films Deposited by Matrix-Assisted Pulsed Laser Evaporation (MAPLE) for Photovoltaic Cell Applications: A Review

Epitaxially crystallized polyethylene exhibiting near‐equilibrium melting temperatures*

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