Because of the limitations of standard culture techniques, the development of new recombinant protein expression systems with biotechnological potential is a key challenge. Ideally, such systems should be able to effectively and accurately synthesize a protein of interest with intrinsic metabolic capacity. Here, we describe such a system that was designed based on a plasmid vector containing pr...

Investigations were carried out on the feasibility of using an oral repletion technique in the rat to assess the bioavailability of copper in experimental sources providing no more than 250 micrograms Cu from any one source. Preliminary studies on the response in plasma Cu of partially Cu-depleted rats given repletion doses of 20-50 micrograms Cu as CuSO4/d on four consecutive days indicated th...

Trong bài báo này, đồng (I) oxit (Cu2O) được tổng hợp thành công từ dung dịch (II) sunfat (CuSO4), glucozơ, natri hidroxit (NaOH). Dung CuSO4 tách rác thải điện tử theo phương pháp hỏa luyện kết với thủy luyện. Vật liệu này nghiên cứu bằng các thực hiện và ảnh hưởng của pH cho thấy vào gồm NaOH glucozơ có = 12 thu Cu2O cấu trúc nano. Qua việc phân tích XRD SEM vật kích thước tinh thể tính là 8,...

In this quantum chemical investigation, NH(3) physisorption onto a model of copper sulfate impregnated silica is compared with pure silica and copper sulfate adsorbents. The physisorption process is modeled as direct binding of the NH(3) molecule to the adsorption site of the dry adsorbents and as displacement of a H(2)O molecule by NH(3) in the hydrated complexes. The surface of silica is repr...

In cells undergoing oxidative stress, DNA damage may result from attack by .OH radicals produced by the Fenton reaction, and/or by nucleases activated by nuclear calcium. In the present study, the participation of these two mechanisms was investigated in HeLa cells. Nuclear-targeted aequorin was used for selectively monitoring Ca2+ concentrations within the nuclei ([Ca2+]n), in conjunction with...

In this study, the interaction between iron and copper on growth parameters (plant height, fresh weight of roots, stem’s length, fresh weight of shoots, fresh and dry weight of seeds), total proteins and the antioxidant enzymes activity   in Cuminum cyminum L.  were investigated. This experiment was carried out in completely randomized blocks with 9 treatments in 3 repetitions.  Plants were tre...

Background: Copper is a trace element vital to life, but the toxic effect of water pollution with it on fish is now exhibited. Fish blood is susceptible to contamination-induced stress and its alternation due to the hematological and immunological parameters can be utilized as toxicity indices of xenobiotics. Methods: In this study, juvenile species of silver carp with average weight of 200gr...

Fiber extracted from castor plant is a bast fiber like hemp, jute, flax and kenaf. Based on the chemical constitutes; physical properties of these eco-friendly fibers agro waste are used in making different materials union fabrics reinforcement materials. In present study, was dyed with Eclipta prostrata extract evaluated for colorfastness color strength properties. The pre, simultaneous post-m...