Chiral Recognition on Bare Gold Surface by Quartz Crystal Microbalance

2021 ◽  
Author(s):  
Xiangyun Xiao ◽  
Chao Chen ◽  
Yehao Zhang ◽  
Huihui Kong ◽  
Rong An ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Chiral Recognition ◽  
Quartz Crystal ◽  
Gold Surface ◽  
Bare Gold

Chiral Recognition on Bare Gold Surface by Quartz Crystal Microbalance

2021 ◽  
Author(s):  
Xiangyun Xiao ◽  
Chao Chen ◽  
Yehao Zhang ◽  
Huihui Kong ◽  
Rong An ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Chiral Recognition ◽  
Quartz Crystal ◽  
Gold Surface ◽  
Bare Gold

scholarly journals Quantitative Assessment of Periodontal Bacteria Using a Cell-Based Immunoassay with Functionalized Quartz Crystal Microbalance

Chemosensors ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 159
Author(s):  
Satit Rodphukdeekul ◽  
Miyuki Tabata ◽  
Chindanai Ratanaporncharoen ◽  
Yasuo Takeuchi ◽  
Pakpum Somboon ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Quartz Crystal Microbalance ◽  
Quantitative Assessment ◽  
Quartz Crystal ◽  
Dynamic Range ◽  
Gold Surface ◽  
Enzyme Linked Immunosorbent Assay ◽  
Inflammatory Disorder ◽  
Label Free ◽  
Periodontal Bacteria

Periodontal disease is an inflammatory disorder that is triggered by bacterial plaque and causes the destruction of the tooth-supporting tissues leading to tooth loss. Several bacteria species, including Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans, are considered to be associated with severe periodontal conditions. In this study, we demonstrated a quartz crystal microbalance (QCM) immunoassay for quantitative assessment of the periodontal bacteria, A. actinomycetemcomitans. An immunosensor was constructed using a self-assembled monolayer of 11-mercaptoundecanoic acid (11-MUA) on the gold surface of a QCM chip. The 11-MUA layer was evaluated using a cyclic voltammetry technique to determine its mass and packing density. Next, a monoclonal antibody was covalently linked to 11-MUA using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide to act as the biorecognition element. The specificity of the monoclonal antibody was confirmed by an enzyme-linked immunosorbent assay. A calibration curve, for the relationship between the frequency shifts and number of bacteria, was used to calculate the number of A. actinomycetemcomitans bacteria in a test sample. Based on a regression equation, the lower detection limit was 800 cells, with a dynamic range up to 2.32 × 106 cells. Thus, the QCM biosensor in this study provides a sensitive and label-free method for quantitative analysis of periodontal bacteria. The method can be used in various biosensing assays for practical application and routine detection of periodontitis pathogens.

Fabrication of hydroxyapatite ultra-thin layer on gold surface and its application for quartz crystal microbalance technique

Biomaterials ◽  
2006 ◽  
Vol 27 (33) ◽  
pp. 5748-5754 ◽  
Author(s):  
Akira Monkawa ◽  
Toshiyuki Ikoma ◽  
Shunji Yunoki ◽  
Tomohiko Yoshioka ◽  
Junzo Tanaka ◽  
...  
Keyword(s):  
Thin Layer ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Gold Surface

Synthesizing Zinc Sulfide Films on the Gold Surface as the Sensor for Electrochemical Quartz Crystal Microbalance

2021 ◽  
Vol 57 (12) ◽  
pp. 1157-1163
Author(s):  
D. O. Krinitsyn ◽  
A. S. Romanchenko ◽  
S. A. Vorob’ev ◽  
M. N. Likhatskii ◽  
A. A. Karacharov ◽  
...  
Keyword(s):  
Zinc Sulfide ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Gold Surface ◽  
Electrochemical Quartz Crystal Microbalance

Fabrication of a β-Cyclodextrin Modified Quartz Crystal Microbalance Biosensor and Its Chiral Recognition

2017 ◽  
Vol 15 (3) ◽  
pp. 261-265
Author(s):  
Sun-Min Cho ◽  
Da-Seul Kim ◽  
Min-Hee Kim ◽  
Seong-Ho Choi
Keyword(s):  
Quartz Crystal Microbalance ◽  
Chiral Recognition ◽  
Quartz Crystal

Simultaneous anomalous reflection and quartz-crystal microbalance measurements of protein bindings on a gold surface

2007 ◽  
pp. 3574 ◽  
Author(s):  
Yuichi Manaka ◽  
Yukihiko Kudo ◽  
Hiroshi Yoshimine ◽  
Takayoshi Kawasaki ◽  
Kotaro Kajikawa ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Gold Surface ◽  
Anomalous Reflection
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