scholarly journals Potentiometric Zinc Ion Sensor Based on Honeycomb-Like NiO Nanostructures

Sensors ◽  
2012 ◽  
Vol 12 (11) ◽  
pp. 15424-15437 ◽  
Author(s):  
Mazhar Abbasi ◽  
Zafar Ibupoto ◽  
Mushtaque Hussain ◽  
Yaqoob Khan ◽  
Azam Khan ◽  
...  
Keyword(s):  
Zinc Ion ◽  
Ion Sensor

Fluorescence-Based Zinc Ion Sensor for Zinc Ion Release from Pancreatic Cells

2006 ◽  
Vol 78 (16) ◽  
pp. 5799-5804 ◽  
Author(s):  
Georgeta Crivat ◽  
Kazuya Kikuchi ◽  
Tetsuo Nagano ◽  
Tsvia Priel ◽  
Michal Hershfinkel ◽  
...  
Keyword(s):  
Zinc Ion ◽  
Ion Release ◽  
Ion Sensor ◽  
Pancreatic Cells

Electrospun Fibers as a Solid-State Real-Time Zinc Ion Sensor with High Sensitivity and Cell Medium Compatibility

2012 ◽  
Vol 23 (12) ◽  
pp. 1566-1574 ◽  
Author(s):  
Jia-Hao Syu ◽  
Yi-Kai Cheng ◽  
Wun-Yan Hong ◽  
Hsing-Ping Wang ◽  
Yu-Chao Lin ◽  
...  
Keyword(s):  
Solid State ◽  
Real Time ◽  
High Sensitivity ◽  
Zinc Ion ◽  
Electrospun Fibers ◽  
Ion Sensor ◽  
Cell Medium

Hydrogel-based zinc ion sensor on optical fiber with high resolution and application to neural cells

2020 ◽  
Vol 162 ◽  
pp. 112230
Author(s):  
May-Jywan Tsai ◽  
Henrich Cheng ◽  
Hsin-Hsien Ho ◽  
Peng-Wei Lin ◽  
Dann-Ying Liou ◽  
...  
Keyword(s):  
High Resolution ◽  
Optical Fiber ◽  
Zinc Ion ◽  
Neural Cells ◽  
Ion Sensor

Matrix metalloproteinases: structure, functions and genetic polymorphism

2017 ◽  
pp. 14-23
Author(s):  
А.С. Шадрина ◽  
И.В. Терешкина ◽  
Я.З. Плиева ◽  
Д.Н. Кушлинский ◽  
Д.О. Уткин ◽  
...  
Keyword(s):  
Genetic Polymorphism ◽  
Matrix Metalloproteinases ◽  
Active Center ◽  
Human Body ◽  
Enzymatic Catalysis ◽  
Structure Functions ◽  
Zinc Ion ◽  
Etiological Factors ◽  
Mmp Genes

Матриксные металлопротеиназы (ММП) - ферменты класса гидролаз, осуществляющие ферментативный катализ с помощью связанного в активном центре иона цинка. Функции ММП разнообразны, и нарушение баланса их активности может быть одним из этиологических факторов различных заболеваний. В данном обзоре рассмотрена классификация ММП человека, особенности их структуры и регуляции, а также роль в физиологических и патологических процессах в организме человека. Приведен перечень наиболее изученных на настоящий момент полиморфных вариантов генов MMП, описаны их функциональные эффекты и представлены результаты ассоциативных исследований. Matrix metalloproteinases (MMPs) are enzymes of the hydrolase class that carry out enzymatic catalysis with the help of a zinc ion bound in the active center. MMP functions are diverse, and a disturbance in the balance of their activity may be one of the etiological factors of various diseases. In this review, the classification of human MMP, the features of their structure and regulation, as well as the role in physiological and pathological processes in the human body are considered. A list of the most studied polymorphic versions of MMP genes has been given, their functional effects have been described, and the results of associative studies have been presented.

Restriction of Access to Dark State: A New Mechanistic Model for Heteroatom-Containing AIE Systems

2019 ◽  
Author(s):  
Yujie Tu ◽  
Junkai Liu ◽  
Haoke Zhang ◽  
Qian Peng ◽  
Jacky W. Y. Lam ◽  
...  
Keyword(s):  
Excited States ◽  
Radiative Decay ◽  
Molecular Design ◽  
Mechanistic Model ◽  
Zinc Ion ◽  
Easy Access ◽  
Triplet States ◽  
Dark State ◽  
Ion Probe ◽  
Π State

Aggregation-induced emission (AIE) is an unusual photophysical phenomenon and provides an effective and advantageous strategy for the design of highly emissive materials in versatile applications such as sensing, imaging, and theragnosis. "Restriction of intramolecular motion" is the well-recognized working mechanism of AIE and have guided the molecular design of most AIE materials. However, it sometimes fails to be workable to some heteroatom-containing systems. Herein, in this work, we take more than one excited state into account and specify a mechanism –"restriction of access to dark state (RADS)" – to explain the AIE effect of heteroatom-containing molecules. An anthracene-based zinc ion probe named APA is chosen as the model compound, whose weak fluorescence in solution is ascribed to the easy access from the bright (π,π*) state to the closelying dark (n,π*) state caused by the strong vibronic coupling of the two excited states. By either metal complexation or aggregation, the dark state is less accessible due to the restriction of the molecular motion leading to the dark state and elevation of the dark state energy, thus the emission of the bright state is restored. RADS is found to be powerful in elucidating the photophysics of AIE materials with excited states which favor non-radiative decay, including overlap-forbidden states such as (n,π*) and CT states, spin-forbidden triplet states, which commonly exist in heteroatom-containing molecules.

Sign in / Sign up

Export Citation Format

Share Document