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Sukur, Yavuz Emre,Ulubasoglu, Hasan,Ilhan, Fatma Ceylan,Berker, Bulent,Sonmezer, Murat,Atabekoglu, Cem Somer,Aytac, Rusen,Ozmen, Batuhan The Korean Society for Reproductive Medicine 2020 Clinical and Experimental Reproductive Medicine Vol.47 No.4
Objective: The feasibility of a gonadotropin-releasing hormone agonist (GnRHa) trigger in normal responders is still a matter of debate. The aim of this study was to compare the number of mature oocytes, the number of good-quality embryos, and the live birth rate in normal responders triggered by GnRHa alone, GnRHa and human chorionic gonadotropin (hCG; a dual trigger), and hCG alone. Methods: A retrospective cohort study was conducted at the infertility clinic of a university hospital. Data from 200 normal responders who underwent controlled ovarian hyperstimulation and intracytoplasmic sperm injection with a GnRH antagonist protocol between January 2016 and January 2017 were reviewed. The first study group consisted of patients with cycles triggered by GnRHa alone. The second study group consisted of patients with cycles triggered by both GnRHa and low-dose hCG (a dual trigger). The control group consisted of patients with cycles triggered by hCG alone. Results: The groups were comparable in terms of demographics and cycle characteristics. The numbers of total oocytes retrieved and metaphase II oocytes were similar between the groups. The total numbers of top-quality embryos were 3.2±2.9 in the GnRHa group, 4.4±3.2 in the dual-trigger group, and 2.9±2.1 in the hCG group (p=0.014). The live birth rates were 21.4%, 30.5%, and 28.2% in those groups, respectively (p=0.126). Conclusion: In normal responders, a dual-trigger approach appears superior to an hCG trigger alone with regard to the number of top-quality embryos produced. However, no clinical benefit was apparent in terms of live birth rates.
Emerging polymeric-based material with photocatalytic functionality for sustainable technologies
Nur Shamimie Nadzwin Hasnan,Mohamad Azuwa Mohamed,Nornastasha Azida Anuar,Muhamad Firdaus Abdul Sukur,Siti Fairus Mohd Yusoff,Wan Nur Aini Wan Mokhtar,Zul Adlan Mohd Hir,Norshahidatul Akmar Mohd Shoha 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
A variety of polymer-based photocatalysts for the highest photocatalytic activity through various modificationsand improvements such as doping, treatment with the oxidising or reducing agent, and integratinganother nanomaterial into the polymer photocatalysts composite are extensively studied. Furthermore, the most common issues on polymer-based photocatalysts, including wide band gap andhigh recombination rate of charge carriers, still need to be improved to yield high photocatalytic activity. Besides hydrogen evolution through the water splitting system, focus also has been paid to photocatalyticfor CO2 reduction, photodegradation of pollutants, photocatalytic chemical synthesis, and photocatalyticnitrogen fixation. This review attempts to reveal the secret of properties, issues, and enhancements, principallyin polymer photocatalysts, besides highlighting the reason for polymeric material as a critical nonmetal-based photocatalyst for various photocatalytic reactions, as well as conducting polymeric materialwith photocatalytic functionality.