Control over Electroless Plating of Silver on Silica Nanoparticles with Sodium Citrate

Authors: Jeffrey E.Chen, QifengWang, Kenneth R. Shull, Jeffrey J.Richards

Journal: Journal of Colloid and Interface Science, 2020


Lipid Bilayers New Application Note

May 15h 2020: AWSensors is pleased to announce the release of its new Application Note on Supported Lipid Bilayers (SLB) entitled “Supported Lipid Bilayer formation followed at low- and high-fundamental frequencies“.

Summary of the Note

The process of supported lipid bilayer (SLB) formation from adsorbed liposomes is a robust biophysical system that is used in laboratories all over the world. Here, it is used to test AWSensors Quartz Crystal Microbalance with Dissipation measurement (QCMD) equipment and high fundamental frequency QCMD sensors. It is shown that the AWSensors QCMD system correctly and quantitatiely reports the frequency and dissipation changes associated with the SLB formation on high- and low-fundamental frequency SiO2-coated sensors. Some differences between the two types of sensors are highlighted.



Quartz crystal microbalance with dissipation measurement, or QCMD, has become a popular technique for research in such disparate fields as material science, biophysics, electrochemistry, and immunosensing. [1] One of the reasons for the wide range of applicability and popularity of QCMD is its ability to provide information about molecular organization (topology and geometry) at solid/liquid interfaces. Specifically, it was shown how the combination of frequency and dissipation could distinguish between different surface-immobilized lipidic assemblies: adsorbed liposomes and supported lipid bilayers (SLBs; Figure 1).[2] This allowed the process of SLB formation from liposomes on SiO2-coated QCMD sensors to be followed in situ.[2] Subsequent studies further showed how the combination of frequency and dissipation measurements on various overtones could be used to study adsorbed liposome deformation [3,4] and detect mutations through the analysis of DNA conformation and length. [5, 6]

Continue reading downloading the full Application Note (below) …

Download Full Application Note

You can download the full Application Note in pdf file from this link or download it from our Applications Web Page where you can find this and the rest of our Application and Technology Notes.

High Fundamental Frequency Quartz Crystal Microbalance (HFF-QCMD) Immunosensor for detection of sulfathiazole in honey

Authors: Lourdes Cervera- Chiner, Yolanda Jiménez, Ángel Montoya, Marisol Juan-Borrása, Nuria Pascual, Antonio Arnau, Isabel Escriche

Journal: Food Control, 2020

Thin Silica‐Based Microsheets with Controlled Geometry

Authors: Marta M. Maciel, Sónia G. Patrício, João Borges, Pavel A. Levkin, Tiago R. Correia, João F. Mano

Journal: European Journal of Inorganic Chemistry,  2020

Development of a high frequency piezoelectric immunosensor for the detection and quantification of BSA

Authors: Laura Buitrago, Camilo Ortiz, Kaory Barrientos, Marisol Jaramillo

Journal: Biointerface Research in Applied Chemistry,  2020

Immobilization of DNA probes on a high frequency piezoelectric biosensor

Authors: Camilo Ortiz-Monsalve, Jorge Mario Guerra-González & Marisol Jaramillo-Grajales

Journal: DYNA, 2020

Detection of DDT and carbaryl pesticides in honey by means of immunosensors based on High Fundamental Frequency Quartz Crystal Microbalance (HFF‐QCM)

Authors: Lourdes Cervera‐Chiner, Carmen March, Antonio Arnau, Yolanda Jiménez
Ángel Montoya

Journal: Journal of the Science of Food and Agriculture, 2020

Insights into Redox Reactions and Ionic Transfers in Ni/Fe Layered Double Hydroxide in potassium hydroxide

Authors: Elise Duquesne, Stephanie Betelu, Cyrille Bazin, Alain Seron,Ioannis Ignatiadis, Hubert Perrot, Ozlem Sel, Catherine Debiemme-Chouvy

Journal: The Journal of Physical Chemistry C, 2020

Preparation of an integrated porous substrate of 11-mercaptoundecanoic acid and chitosan on gold for electrochemical study of pores and pore forming interactions in lipid bilayers

Authors: S. Gogoi, S. Kalita, R. Hazarika, P. Puzari

Journal: Electrochimica Acta, 2020