Electronic Structures and Optical Properties of Ga-Rich In_<i>x</i>Ga_1−<i>x</i>N Nanotubes

The electronic structures and optical properties of single-walled Ga-rich zigzag InxGa1−xN nanotubes (NTs) are investigated using first-principles calculations. We find that In atoms substitute Ga atoms randomly in InxGa1−xN NTs, in which some typical In−N clusters, chains, and rings are embedded by chance. Both the electronic structures and optical properties insensitively depends on In distribution. A spiculate density of states (DOS) peak appears in the vicinity of the valence band maximum (VBM) and conduction band minimum. The imaginary part ε2 of the complex dielectric function has also a sharp peak related to the band edge absorption. The In doping can effectively adjust the band gap and enhance the peak of the band edge absorption and DOS. Unlike bulk InxGa1−xN alloys, the electron states at the VBM become extended for the NTs with various In distributions

Electronic Structures and Optical Properties of Ga-Rich In_<i>x</i>Ga_1−<i>x</i>N Nanotubes

The electronic structures and optical properties of single-walled Ga-rich zigzag InxGa1−xN nanotubes (NTs) are investigated using first-principles calculations. We find that In atoms substitute Ga atoms randomly in InxGa1−xN NTs, in which some typical In−N clusters, chains, and rings are embedded by chance. Both the electronic structures and optical properties insensitively depends on In distribution. A spiculate density of states (DOS) peak appears in the vicinity of the valence band maximum (VBM) and conduction band minimum. The imaginary part ε2 of the complex dielectric function has also a sharp peak related to the band edge absorption. The In doping can effectively adjust the band gap and enhance the peak of the band edge absorption and DOS. Unlike bulk InxGa1−xN alloys, the electron states at the VBM become extended for the NTs with various In distributions

Novel Hyperbranched Dialdehyde Carboxymethyl Cellulose-Grafted Gelatin Films as Potential Natural Antibacterial Materials

Carboxymethyl cellulose (CMC) has potential applications in food packaging given its good processibility and biological properties. In this research, dialdehyde carboxymethyl cellulose (DCMC) was first modified with polyamidoamine (PAMAM G0) to synthesize hyperbranched dialdehyde carboxymethyl cellulose (HPD). Then, a novel hyperbranched dialdehyde carboxymethyl cellulose-grafted gelatin (HPD/Gs) film was obtained by the “one-pot” method. The structural characteristics, degree of cross-linking, thickness, swelling behavior, water solubility, water vapor permeability, surface morphology, hydrophilicity, mechanical strength, antibacterial properties, and biocompatibility of HPD/Gs were characterized by using Fourier transform infrared (FTIR), scanning electron microscopy energy-dispersive X-ray spectroscopy (SEM-EDS), X-ray diffractometry (XRD), thermogravimetric analysis/derivative thermogravimetry (TGA/DTG), differential scanning calorimetry (DSC), and other analysis technologies. The results revealed that the prepared HPD/Gs film showed good thermal stability and mechanical properties. In particular, when the mass ratio of HPD to G was 1:1.5, the cross-linking degree, swelling behaviors, water vapor permeability (WVP), water contact angle, tensile strength, and elongation at break of the HPD/1.5G film reached 42.757%, 109.114%, 46.71 g·mm/m2·day·kPa (1 day), 115.4 ± 4.5°, 1.77 MPa, and 320.93%, respectively. Moreover, the HPD/Gs films had good cytocompatibility and antibacterial properties against Staphylococcus aureus and Escherichia coli. The research indicated that the designed HPD/Gs are a type of green antimicrobial material with potential value

relevant datas for replication studies

relevant datas for replication studie

Blocks of the haplotypes in ICAM-1 gene between coronary atherosclerosis cases and controls.

<p>Blocks of the haplotypes in ICAM-1 gene between coronary atherosclerosis cases and controls.</p

Association between the Polymorphisms in Intercellular Adhesion Molecule-1 and the Risk of Coronary Atherosclerosis: A Case-Controlled Study

<div><p>Intercellular adhesion molecule-1 (ICAM-1), an important immune adhesion molecule, is related to the atherosclerosis. We explored the association between the polymorphisms of the ICAM-1 gene and coronary atherosclerotic stenosis to determine whether any risk factors correlate with genetic polymorphisms in Chinese patients with coronary atherosclerosis. Using the SNaPshot assay, we examined six SNPs of rs5491, rs281428, rs281432, rs5496, rs5498 and rs281437 in 604 patients diagnosed with coronary atherosclerotic stenosis by angiography and in 468 controls. We found that AG genotype of rs5498 had higher frequency in the coronary atherosclerotic stenosis patients (41.56% to 34.19%, P = 0.017, OR = 1.368,95%CI 1.057–1.770) and that the haplotype A_rs5491C_rs281428G_rs281432 had higher frequency in patients (13.8% to 12.1%, P = 0.048). When analyzing the clinical risk factors for coronary atherosclerosis, we found that the rs5498 locus was associated with the levels of apolipoprotein A (APOA) (P = 0.0002) and triglycerides (TG) (P = 0.002). Furthermore, the levels of triglycerides (TG) were also associated with rs281432 (P = 0.040). Additionally, the TT genotype of rs281437 was associated with a higher level of apolipoprotein A (APOA) (P = 0.039) and apolipoprotein B (APOB) (P = 0.003). Finally, among those with coronary atherosclerosis, we found no differences in the haplotype analysis of polymorphisms of the ICAM-1 gene from individuals with hypertension or those who smoked. According to our results, the ICAM-1 polymorphisms were associated with risk of coronary atherosclerotic stenosis in Chinese individuals.</p></div

SNP genotyping of ICAM-1 gene (S1.rs281428, S2.rs281432, S3.rs5496, S4.rs5491, S5.rs5498, S6.rs281437).

<p>SNP genotyping of ICAM-1 gene (S1.rs281428, S2.rs281432, S3.rs5496, S4.rs5491, S5.rs5498, S6.rs281437).</p

Relationship between ICAM-1 polymorphisms and risk factor of coronary atherosclerosis in coronary stenosis patients.

<p>rs5491 A/T, rs281428 C/T, rs281432 C/G, rs5498 A/G, rs281437 C/T.</p><p>CHO =  cholesterol; TG  =  Triglyceride; HDL  =  high-density lipoprotein cholesterol; LDL  =  low-density lipoprotein cholesterol; APO = apolipoprotein; UA = uric acid; GLU = fasting blood-glucose.</p><p>The data were analyzed by ANOVA and shown as mean value.</p><p>Relationship between ICAM-1 polymorphisms and risk factor of coronary atherosclerosis in coronary stenosis patients.</p

Clinical and Demographic Characteristics of Patients (n = 604) and controls (n = 468).

<p>HDL  =  high-density lipoprotein cholesterol; LDL  =  low-density lipoprotein cholesterol; CHO =  cholesterol; TG  =  Triglyceride; BMI  =  body mass index; APO = apolipoprotein; GLU = fasting blood-glucose; UA = uric acid.</p><p>Clinical and Demographic Characteristics of Patients (n = 604) and controls (n = 468).</p

Haplotypes of ICAM-1 gene and risk of coronary atherosclerosis.

<p>Haplotypes of ICAM-1 gene and risk of coronary atherosclerosis.</p