Weak gel with PAM cross-linked radical reaction was prepared by being incorporated to side chain of PAM. The structure, gel for ming process and the influence of NaCl concentration to apparent viscosity of gel were studied. The results show that the crosslinking ratios influence to crosslinking time, gel breaking time and gel strength. The crosslinking time decreases and gel strength slightly increases with increase of crosslinking ratio. Apparent viscosity of Polyacrylamide derivative crosslinking system increases with increase of NaCl concentration. The weak gel has good salt tolerance ability.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Experimental Study on the Application of Polymer Agents in Offshore Oil Fields: Optimization Design for Enhanced Oil Recovery.
Polymers (Basel)
January 2025
State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China.
The Bohai oilfield is characterized by severe heterogeneity and high average permeability, leading to a low water flooding recovery efficiency. Polymer flooding only works for a certain heterogeneous reservoir. Therefore, supplementary technologies for further enlarging the swept volume are still necessary.
View Article and Find Full Text PDFMicrofluidic purification of genomic DNA.
Proc Natl Acad Sci U S A
January 2025
Department of Chemical Engineering, University of Florida, Gainesville, FL 32611.
We describe a microfluidic device to extract DNA from a cell lysate, without the need for centrifuges, magnetic beads, or gels. Instead, separation is driven by transverse migration of DNA, which occurs when a polyelectrolyte solution flowing through a microfluidic channel is subjected to an electric field. The coupling of the weak shearing with the axial electric field is highly selective for long, flexible, charged molecules, of which DNA is the sole example in a typical cell lysate.
View Article and Find Full Text PDFElucidating the Biological Potential and DNA Protective Activities of Astragalus tokatensis Fisch: GC-MS and LC-HRMS-based Characterization and Molecular Docking Studies.
Chem Biodivers
January 2025
Tokat Gaziosmanpasa University Faculty of Arts and Sciences: Tokat Gaziosmanpasa Universitesi Fen Edebiyat Fakultesi, Biology, Tokat, Tokat, TURKEY.
Astragalus tokatensis is a local endemic species and no study exists on this species. In this study, hexane, dichloromethane, methanol and water extracts were obtained from the parts of root, leaf and flower of A. tokatensis.
View Article and Find Full Text PDFNon-surgical management of gingival cleft.
Minerva Dent Oral Sci
January 2025
Department of Oral Rehabilitation and Maxillofacial Prosthesis, Dental School, University of Turin, Turin, Italy.
The aims of the present case report are to describe the non-surgical management in addition to hyaluronic acid application of two gingival recessions with cleft and to perform a narrative review on the newest evidence of non-surgical treatment of gingival recessions. A 47-year-old female patient with dentine hypersensitivity and pain during brushing has type 1 gingival recession with red Stillman's cleft on 1.4 and 1.
View Article and Find Full Text PDFEffect of platelet-rich plasma and platelet-rich fibrin on healing of burn wound with dual-species biofilm.
Kaohsiung J Med Sci
January 2025
Department of Blood Transfusion, General Hospital of Southern Theatre Command of PLA, Guangzhou City, Guangdong Province, China.
This study evaluated the impact of platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) on burn wound with dual-species biofilm. Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!