Browsing by Author "Liedberg, Bo"
Now showing items 1-11 of 11
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Colorimetric Urinalysis for On-Site Detection of Metabolic Biomarkers
Yeasmin, Sanjida; Ammanath, Gopal; Ali, Yusuf; Boehm, Bernhard O.; Yildiz, Umit Hakan; Palaniappan, Alagappan; Liedberg, Bo (AMER CHEMICAL SOC, 2020)Over the past few decades, colorimetric assays have been developed for cost-effective and rapid on-site urinalysis. Most of these assays were employed for detection of biomarkers such as glucose, uric acid, ions, and albumin ... -
Flow-through colorimetric assay for detection of nucleic acids in plasma
Ammanath, Gopal; Yeasmi, Sanjida; Srinivasulu, Yuvasri; Vats, Mukti; Cheema, Jamal Ahmed; Nabilah, Fairuz; Srivastava, Rohit; Yıldız, Ümit Hakan; Alagappan, Palaniappan; Liedberg, Bo (Elsevier, 2019-08)A flow-through colorimetric assay for detection of nucleic acids in plasma is reported. The proposed assay features an array of four polyvinylidene fluoride (PVDF) membranes impregnated with cationic poly (3-alkoxy-4-met ... -
Macromol. Mater. Eng. 7/2016
Işık, Tuğba; Horzum, Nesrin; Yıldız, Ümit Hakan; Liedberg, Bo; Demir, Mustafa Muammer (Wiley, 2016-07)Back Cover: An easy‐to‐use test platform toward the rapid diagnosis of many life‐threating diseases was developed. DNA was isolated from the mixture of BSA+DNA using fibrous commodity polystyrene, which was extremely cheap ... -
Outer-Membrane Protease (OmpT) BasedE. coliSensing with Anionic Polythiophene and Unlabeled Peptide Substrate
Sinsinbar, Gaurav; Gudlur, Sushanth; Wood, Sarah E.; Ammanath, Gopal; Yildiz, Hakan U.; Alagappan, Palaniappan; Liedberg, Bo (WILEY-V C H VERLAG GMBH, 2020)E. coli and Salmonella are two of the most common bacterial pathogens involved in foodborne and waterborne related deaths. Hence, it is critical to develop rapid and sensitive detection strategies for near-outbreak ... -
Pixelated colorimetric nucleic acid assay
Aydın, Hakan Berk; Cheema, Jamal Ahmed; Arnmanath, Gopal; Toklucu, Cihan; Yücel, Müge; Özenler, Sezer; Palaniappan, Alagappan; Liedberg, Bo; Yıldız, Ümit Hakan (Elsevier, 2020-03)Conjugated polyelectrolytes (CPEs) have been widely used as reporters in colorimetric assays targeting nucleic acids. CPEs provide naked eye detection possibility by their superior optical properties however, as concentration ... -
Polythiophene derivative on quartz resonators for miRNA capture and assay
Palaniappan, Al.; Cheema, Jamal Ahmed; Rajwar, Deepa; Ammanath, Gopal; Xiaohu, Liu; Seng Koon, Lim; Yi, Wang; Yıldız, Ümit Hakan; Liedberg, Bo (Royal Society of Chemistry, 2015-12)A novel approach for miRNA assay using a cationic polythiophene derivative, poly[3-(3′-N,N,N-triethylamino-1′-propyloxy)-4-methyl-2,5-thiophene hydrobromide] (PT), immobilized on a quartz resonator is proposed. The cationic ... -
Tailoring conformation-induced chromism of polythiophene copolymers for nucleic acid assay at resource limited settings
Rajwar, Deepa; Ammanath, Gopal; Cheema, Jamal Ahmed; Palaniappan, Alagappan; Yıldız, Ümit Hakan; Liedberg, Bo (American Chemical Society, 2016-04-20)Here we report on the design and synthesis of cationic water-soluble thiophene copolymers as reporters for colorimetric detection of microRNA (miRNA) in human plasma. Poly(3-alkoxythiophene) (PT) polyelectrolytes with ... -
Tuning pendant groups of polythiophene on carbon nanotubes for vapour classification
Tu, Meng-Che; Svm, Hari Krishna; Thilini, Alahakoon; Wallace, Lim Tse Loong; Moochhala, Shabbir; Yıldız, Ümit Hakan; Palaniappan, Al.; Liedberg, Bo (Elsevier, 2017)Poly(3-alkoxythiophene) (PT) with varying ratios of triethylamine and 1-methyl imidazole pendant groups and horizontally aligned single walled carbon nanotubes (SWCNT) are utilized in this study for volatile organic compounds ... -
Utilization of electrospun polystyrene membranes as a preliminary step for rapid diagnosis
Isık, Tuğba; Horzum, Nesrin; Yıldız, Ümit Hakan; Liedberg, Bo; Demir, Mustafa M. (Wiley, 2016-07)Recent advances in clinical practice drive deoxyribonucleic acid (DNA) as an important class of biomarker. Monitoring the change in their concentration suggests the initiation and/or progression of various disorders. ... -
Vapor phase solvatochromic responses of polydiacetylene embedded matrix polymers
Tu, Meng-Che; Cheema, Jamal Ahmed; Yıldız, Ümit Hakan; Palaniappan, Alagappan; Liedberg, Bo (Royal Society of Chemistry, 2017)The solvatochromic response of polydiacetylene (PDA) in the vapor phase is enabled upon incorporation with matrix polymers such as polyvinylpyrrolidone (PVP), polyethylene glycol (PEG), polyacrylic acid (PAA), and ... -
Visual detection of Al3+ ions using conjugated copolymer-ATP supramolecular complex
Tu, Meng-Che; Rajwar, Deepa; Ammanath, Gopal; Alagappan, Palaniappan; Yıldız, Ümit Hakan; Liedberg, Bo (Elsevier, 2016-03)A colorimetric Al3+ sensor based on fluorescence recovery of a conjugated copolymer-ATP complex is proposed. An optimized ratio of two polythiophene (PT) monomers is utilized to synthesize copolymer (CP) that yielded ...
