The structural, magnetic, and electron-transport properties of Mn 3Àx Pt x Sn (x ¼ 0, 0.5, 1) nanomaterials prepared by arc-melting, melt-spinning, and annealing were investigated. It was found that the hexagonal structure is the most stable structure for Mn 3 Sn and the samples show an antiferromagnetic spin order at room temperature. The Pt-containing samples are mainly tetragonal but contain...

Despite advances in treatment, malignant glioma commonly exhibits recurrence, subsequently leading to a poor prognosis. As manganese (Mn) compounds can be transported by the transferrin‑transferrin receptor system, the present study synthesized and examined the potential use of Adpa‑Mn as a novel antitumor agent. Adpa‑Mn time and dose‑dependently inhibited U251 and C6 cell proliferation; howeve...

Seven Mn(ii) coordination polymers, namely {[Mn2(ptptp)Cl2(H2O)3]·H2O}n (1), {[Mn(μ-ptptp)3]2[Mn3(μ3-Cl)]2}·2Cl·16H2O (2), {[Mn2(ptptp)(ip)2(H2O)3]·H2O}n (3), {[Mn2(ptptp)(5-CH3-ip)2(H2O)3]·H2O}n (4), {[Mn4(ptptp)(5-Br-ip)3(H2O)3]·4H2O}n (5), {[Mn2(ptptp)(Hbtc)(H2O)2]·2H2O}n (6) and {[Mn2(ptptp)(tdc)(H2O)2]·1.5H2O}n (7), have been prepared based on multidentate N-heterocyclic aromatic ligands a...

Manganese (Mn) exposure causes manganism, a neurological disorder similar to Parkinson's disease. However, the cellular mechanism by which Mn induces dopaminergic neuronal cell death remains unclear. In the present study, we sought to investigate the key downstream apoptotic cell signaling events that contribute to Mn-induced cell death in mesencephalic dopaminergic neuronal (N27) cells. Mn exp...

The reaction of Mn(X)(CO)5 (X = Cl, Br, I) with 2 equivalents of tri(1-cyclohepta-2,4,6trienyl)phosphane, P(C7H7)3 ((1); [P] if coordinated to a metal) led stepwise first to cis{Mn(X)(CO)4[P]} (X = Cl (4a), Br (4b), I (4c)) and then to mer,trans-{Mn(X)(CO)3[P]2} (X = Cl (5a), Br (5b), I (5c)). Nucleophilic displacement of the bromo ligand from (5b) by one-, threeor five-electron ligands gave th...

We have correlated the structure-property relationship of three manganese-based inorganic-organic hybrid structures. Compound 1, [Mn2(OH-BDC)2(DMF)3] (where BDC = 1,4-benzene dicarboxylic acid and DMF = N,N'-dimethylformamide), contains Mn2O11 dimers as secondary building units (SBUs), which are connected by carboxylate anions forming Mn-O-C-O-Mn chains. Compound 2, [Mn2(BDC)2(DMF)2], contains ...

OBJECTIVE Recent advances in human islet transplantation are hampered by significant graft loss shortly after transplantation and inability to follow islet fate directly. Both issues were addressed by utilizing a dual-purpose therapy/imaging small interfering RNA (siRNA)-nanoparticle probe targeting apoptotic-related gene caspase-3. We expect that treatment with the probe would result in signif...

In the asymmetric unit of the title compound, [Mn(C(2)O(4))(C(3)H(10)N(2))(2)]Cl·H(2)O, there are two independent Mn(III) complexes, two Cl(-) anions and two uncoordinated water mol-ecules. Each Mn(III) atom is hexa-coordinated by four N atoms from two propane-1,3-diamine ligands and two O atoms from one oxalate ligand, resulting in a slightly distorted octa-hedral MnO(2)N(4) geometry. Mn-O and...