Interactions of Calcium Ions with Phospholipid Membranes. Studies on .pi.-A Isotherms and Electrochemical and Quartz-Crystal Microbalance Measurements

Ebara, Yasuhito; Ebato, Hiroshi; Ariga, Katsuhiko; Okahata, Yoshio

doi:10.1021/la00019a040

Cited by 31 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, QCM measurements have been widely used for the confirmation of the reproducibility of LB film multilayers using the relationship between the QCM frequency changes against the deposited mass, which should depend on the number of layers in the LB film [9,[38][39][40]. The resonant frequency, f, of the QCM crystal for an LB film is described by:…”

Section: Quartz Crystal Microbalance Resultsmentioning

confidence: 99%

Characterization of Langmuir–Blodgett films of a calix[8]arene and sensing properties towards volatile organic vapors

Çapan

Özbek

Göktaş

et al. 2010

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

a b s t r a c tWithin this article, we report the characterization and organic vapor sensing properties of Langmuir-Blodgett (LB) thin films of calix[8]arenes. Surface pressure-area isotherms show that very stable monolayers are formed at the air-water interface. The LB film could be deposited onto different substrates which allowed the films to be characterized by UV, quartz crystal microbalance (QCM), surface plasmon resonance (SPR) and atomic force microscopy (AFM). The results indicate that good quality, uniform LB films can be prepared with transfer ratios of over 0.95. QCM results showed that the deposited mass of calix[8]arene monolayer onto a quartz crystal decreased from 693 to 204 ng as the number of layers is increased. AFM studies showed a smooth, and void free surface morphology with a rms value of 1.202 nm. The sensing abilities of this LB film towards the development of room temperature organic vapor sensing devices are also studied. Responses of the LB films to various vapors are fast, large, and reversible. It was found that the obtained LB film is significantly more sensitive to chloroform than other vapors. It can be concluded that this molecule could have a potential application in the research area of room temperature vapor sensing devices.

show abstract

Section: Quartz Crystal Microbalance Resultsmentioning

confidence: 99%

Characterization of Langmuir–Blodgett films of a calix[8]arene and sensing properties towards volatile organic vapors

Çapan

Özbek

Göktaş

et al. 2010

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

show abstract

“…Immobilization of biomaterials into nanoorganized structures, including supermolecules [108][109][110][111][112][113], lipid bilayers [114][115][116][117][118][119][120][121][122][123][124][125][126], self-assembled monolayers [127][128][129], Langmuir-Blodgett films [130][131][132][133][134][135][136][137][138][139][140][141][142][143][144][145][146][147][148][149], and layerby-layer assemblies [150][151][152][153][154][155][156]…”

Section: Biomaterial-hybridized Mesoporous Materialsmentioning

confidence: 99%

New families of mesoporous materials

Vinu

Mori

Ariga

2006

Science and Technology of Advanced Materials

Self Cite

165

View full text Add to dashboard Cite

Mesoporous materials have been paid much attention in both scientific researches and practical applications. In this review, we focus on recent developments on preparation and functionalization of new families of mesoporous materials, especially non-siliceous mesoporous materials invented in our research group. Replica synthesis is known as the method to synthesize mesoporous materials composed of various elements using originally prepared mesoporous replica. This strategy has been applied for the syntheses of novel mesoporous materials such as carbon nanocage and mesoporous carbon nitride. Carbon nanocage has a cage-type structure with huge surface area and pore volume, which exhibits superior capabilities for biomolecular adsorption. Mesoporous carbon nitride was synthesized, for first time, by using mixed material source of carbon and nitrogen simultaneously. As a totally new strategy for synthesis of mesoporous materials, the elemental substitution method has been recently proposed by us. Direct substitution of component elements in original mesoporous materials, with maintaining structural regularity, provided novel mesoporous materials. According to this synthetic strategy, mesoporous boron nitride and mesoporous boron carbon nitride have been successfully prepared, for first time. In addition to these material inventions, hybridization of high functional materials, such as biomaterials, to mesoporous structure has been also developed. Especially, immobilization of proteins in mesopores was systematically researched, and preparation of peptidehybridized mesoporous silica was demonstrated. These new families of mesoporous materials introduced in this review would have high potentials in future practical applications in wide ranges from electronics and photonics to environmental and medical uses. r

show abstract

“…Of the variousc lasses of mechanical sensors, recent examples of piezoelectric sensors, such as the quartz crystal microbalance( QCM) and the quartz crystal microbalancew ith dissipation monitoring (QCM-D), are introduced herein. Although the sensing capabilities of QCMs for molecular detection, [28] biomolecular interaction, [29] viscoelastic phase transitions of ordered materials, [30] and evaluation of thin-film fabrication [31] were first demonstrated in the 1980s and early 1990s, recent progress in nanoarchitectonic-inspired structuralf abrication and modelm embrane assemblies have created huge possibilities for new bioanalyticala pplications.I na ddition, as an emerging tool for mechanical sensing, am embrane-type surface stress sensor( MSS) [32] is briefly describedi nt he final section. With versatile abilities and broad applicability, application of the nanoarchitectonics concept to mechanical sensors creates al ot of possibilities for the future development of cutting-edges ensing tools.…”

Section: Introductionmentioning

confidence: 99%

Materials Nanoarchitectonics for Mechanical Tools in Chemical and Biological Sensing

Jackman

Cho

Nishikawa

et al. 2018

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

In this Focus Review, nanoarchitectonic approaches for mechanical-action-based chemical and biological sensors are briefly discussed. In particular, recent examples of piezoelectric devices, such as quartz crystal microbalances (QCM and QCM-D) and a membrane-type surface stress sensor (MSS), are introduced. Sensors need well-designed nanostructured sensing materials for the sensitive and selective detection of specific targets. Nanoarchitectonic approaches for sensing materials, such as mesoporous materials, 2D materials, fullerene assemblies, supported lipid bilayers, and layer-by-layer assemblies, are highlighted. Based on these sensing approaches, examples of bioanalytical applications are presented for toxic gas detection, cell membrane interactions, label-free biomolecular assays, anticancer drug evaluation, complement activation-related multiprotein membrane attack complexes, and daily biodiagnosis, which are partially supported by data analysis, such as machine learning and principal component analysis.

show abstract

Interactions of Calcium Ions with Phospholipid Membranes. Studies on .pi.-A Isotherms and Electrochemical and Quartz-Crystal Microbalance Measurements

Cited by 31 publications

References 0 publications

Characterization of Langmuir–Blodgett films of a calix[8]arene and sensing properties towards volatile organic vapors

Characterization of Langmuir–Blodgett films of a calix[8]arene and sensing properties towards volatile organic vapors

New families of mesoporous materials

Materials Nanoarchitectonics for Mechanical Tools in Chemical and Biological Sensing

Contact Info

Product

Resources

About