Solid-surface room-temperature phosphorescence optosensing in continuous flow systems: an approach for ultratrace metal ion determination

1991 ◽  
Vol 63 (17) ◽  
pp. 1759-1763 ◽  
Author(s):  
Rosario. Pereiro Garcia ◽  
Yi Ming. Liu ◽  
Marta Elena. Diaz Garcia ◽  
Alfredo. Sanz-Medel
Keyword(s):  
Solid Surface ◽  
Continuous Flow ◽  
Metal Ion ◽  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Flow Systems

Solid surface room-temperature phosphorescence of pesticides

1984 ◽  
Vol 56 (6) ◽  
pp. 1030-1033 ◽  
Author(s):  
Joseph J. Vannelli ◽  
E. M. Schulman
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Room Temperature Phosphorescence

Solid Surface Room Temperature Phosphorescence of Polychlorinated Dibenzofurans Enhanced by a Surface Active Agent

1995 ◽  
Vol 28 (13) ◽  
pp. 2413-2436 ◽  
Author(s):  
J. J. Santana Rodríguez ◽  
J. Hernádez García ◽  
Z. Sosa Ferrera ◽  
A. J. Bermejo Martín Lázaro
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Surface Active Agent ◽  
Active Agent ◽  
Polychlorinated Dibenzofurans ◽  
Room Temperature Phosphorescence ◽  
Surface Active

The Solid Surface Room Temperature Phosphorescence of Three Purine Compounds and Analytical Application

2004 ◽  
Vol 37 (3) ◽  
pp. 435-448
Author(s):  
Yuxia Wei ◽  
Lihua Ding ◽  
Junfen Li ◽  
Yanli Wei ◽  
Chuan Dong
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Analytical Application ◽  
Room Temperature Phosphorescence

scholarly journals Understanding Dissolution Rates via Continuous Flow Systems with Physiologically Relevant Metal Ion Saturation in Lysosome

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 311 ◽  
Author(s):  
Johannes Keller ◽  
Willie Peijnenburg ◽  
Kai Werle ◽  
Robert Landsiedel ◽  
Wendel Wohlleben
Keyword(s):  
Flow Rate ◽  
Continuous Flow ◽  
Metal Ion ◽  
Volume Flow Rate ◽  
Particle Surface ◽  
Volume Flow ◽  
High Similarity ◽  
Dissolution Rates ◽  
Wide Range ◽  
Flow Systems

Dissolution rates of nanomaterials can be decisive for acute in vivo toxicity (via the released ions) and for biopersistence (of the remaining particles). Continuous flow systems (CFSs) can screen for both aspects, but operational parameters need to be adjusted to the specific physiological compartment, including local metal ion saturation. CFSs have two adjustable parameters: the volume flow-rate and the initial particle loading. Here we explore the pulmonary lysosomal dissolution of nanomaterials containing the metals Al, Ba, Zn, Cu over a wide range of volume flow-rates in a single experiment. We identify the ratio of particle surface area (SA) per volume flow-rate (SA/V) as critical parameter that superimposes all dissolution rates of the same material. Three complementary benchmark materials—ZnO (quick dissolution), TiO2 (very slow dissolution), and BaSO4 (partial dissolution)—consistently identify the SA/V range of 0.01 to 0.03 h/μm as predictive for lysosomal pulmonary biodissolution. We then apply the identified method to compare against non-nanoforms of the same substances and test aluminosilicates. For BaSO4 and TiO2, we find high similarity of the dissolution rates of their respective nanoform and non-nanoform, governed by the local ion solubility limit at relevant SA/V ranges. For aluminosilicates, we find high similarity of the dissolution rates of two Kaolin nanoforms but significant dissimilarity against Bentonite despite the similar composition.

Solid surface room temperature phosphorescence of tetracycline antibiotics

1996 ◽  
Vol 319 (1-2) ◽  
pp. 239-247 ◽  
Author(s):  
Hongzhi Xie ◽  
Chuan Dong ◽  
Weijun Jin ◽  
Yansheng Wei ◽  
Changsong Liu ◽  
...  
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Tetracycline Antibiotics

A novel optical biosensor for direct and selective determination of serotonin in serum by Solid Surface-Room Temperature Phosphorescence

2016 ◽  
Vol 82 ◽  
pp. 217-223 ◽  
Author(s):  
Teresa Ramon-Marquez ◽  
Antonio L. Medina-Castillo ◽  
Alberto Fernandez-Gutierrez ◽  
Jorge F. Fernandez-Sanchez
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Optical Biosensor ◽  
Room Temperature Phosphorescence ◽  
Selective Determination
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