Recent developments in urea biosensors

G Dhawan, G Sumana, BD Malhotra - Biochemical Engineering Journal, 2009 - Elsevier
This paper reviews recent developments in urea biosensors, as reported in the literature.
The advantages and roles of various matrices, different strategies for biosensor construction …

Ureases. II. Properties and their customizing by enzyme immobilizations: a review

B Krajewska - Journal of Molecular Catalysis B: Enzymatic, 2009 - Elsevier
Ureases are enzymes highly desirable in immobilized form for a number of applications that
exploit urea cleavage and an increase in pH, inherent to the reaction. Major among them are …

Modification and characterization of cellulosic cotton fibers for efficient immobilization of urease

M Monier, AMA El-Sokkary - International journal of biological …, 2012 - Elsevier
Cotton fibers were first grafted by polyacrylonitril in the presence of KMnO4 and oxalic acid
as a combined redox initiator. Moreover, modification of the grafted cotton fibers was done …

Conductometric enzyme biosensors based on natural zeolite clinoptilolite for urea determination

OY Saiapina, VM Pyeshkova, OO Soldatkin… - Materials Science and …, 2011 - Elsevier
Highly sensitive conductometric urea biosensors were developed by exploiting the
successful combination of ammonium-sieving and ion exchange properties of clinoptilolite …

Phospha-Mannich reactions of phosphinous acids R2P–OH and their derivatives

DV Moiseev - Phosphorus, Sulfur, and Silicon and the Related …, 2023 - Taylor & Francis
Secondary phosphine oxides R2P (O) H are a relatively stable tautomeric form of secondary
phosphinous acids R2P–OH that with imine/iminium species, or their donors, form …

Novel fabrication method of the peritoneal dialysis filter using silk fibroin with urease fixation system

BM Moon, MJ Choi, MT Sultan, JW Yang… - … Research Part B …, 2017 - Wiley Online Library
During the last decade, there has been a great advance in the kidney dialysis system by
wearable artificial kidney (WAK) system for end‐stage renal disease patients. Uremic solute …

Phospha-Mannich reactions of PH3 and its analogs

DV Moiseev, BR James - Phosphorus, Sulfur, and Silicon and the …, 2022 - Taylor & Francis
The easiest route to form compounds with P–C sp3–N linkage (s) is phosphorus-based
Mannich-type reactions (phospha-Mannich reactions) between phosphines (R3P, R2PH …

Recirculating peritoneal dialysis system using urease-fixed silk fibroin membrane filter with spherical carbonaceous adsorbent

MT Sultan, BM Moon, JW Yang, OJ Lee, SH Kim… - Materials Science and …, 2019 - Elsevier
The chronic kidney disease (CKD) patients are undergoing continuous ambulatory
peritoneal dialysis (CAPD). However, there are some constraints, the frequent exchange of …

Preparation and characterization of urease immobilized onto porous chitosan beads for urea hydrolysis

JP Chen, SH Chiu - Bioprocess Engineering, 1999 - Springer
Urease was covalently immobilized onto porous chitosan beads via primary amine groups
connected to the backbone via a six-carbon linear alkyl spacer. The optimum conditions for …

Dioxane enhanced immobilization of urease on alkyl modified nano-porous silica using reversible denaturation approach

F Nabati, M Habibi-Rezaei, M Amanlou… - Journal of Molecular …, 2011 - Elsevier
Efficient immobilization of urease was achieved upon dioxane-induced unfolding/refolding
strategy on alkyl modified porous silica with an average pore size of 66nm. Structural …