Photoelectrochemical Solution Gated Graphene Field-Effect Transistor Functionalized by Enzymatic Cascade Reaction for Organophosphate Detection.

Solution Gated Graphene Field-Effect Transistors (SGGT) are eagerly anticipated as an amplification platform for fabricating advanced ultra-sensitive sensors, allowing significant modulation of the drain current with minimal gate voltage. However, few studies have focused on light-matter interplay gating control for SGGT. Herein, this challenge is addressed by creating an innovative photoelectrochemical solution-gated graphene field-effect transistor (PEC-SGGT) functionalized with enzyme cascade reactions (ECR) for Organophosphorus (OPs) detection.

Osteopontin expression is associated with hepatopathologic changes in Schistosoma japonicum infected mice.

Aim: To investigate osteopontin expression and its association with hepatopathologic changes in BALB/C mice infected with Schistosoma japonicum.

Methods: The schistosomal hepatopathologic mouse model was established by abdominal infection with schistosomal cercaria. Liver samples were obtained from mice sacrificed at 6, 8, 10, 14, and 18 wk after infection.

[The diagnostic value of double-balloon enteroscopy in 67 cases with obscure abdominal pain].

Objective: To evaluate the diagnostic valve of double balloon enteroscopy in patients with obscure abdominal pain and analyze the etiology of chronic abdominal pain resulted from enteral diseases.

Methods: Sixty-seven cases with chronic abdominal pain underwent a previous negative gastroscopy, colonoscopy, gastrointestinal barium, B ultrasound and electrocardiogram were received double balloon enteroscopy during June 2005 to June 2008.

Results: Thirty-six of 67 patients was done by enteroscopy via anus, and 19 cases via oral, and 12 cases via both anus and oral.

[Establishment of protein expression profile of human normal colonic epithelia].

Objective: To establish a protein expression profile of human normal colonic epithelia.

Methods: Two-dimensional gel electrophoresis (2-DE) was applied to separate the total proteins of 20 human normal colonic epithelial tissues. The expression proteins in the human normal colonic epithelia were identified by both matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) and electrospray ionization tandem mass spectrometry (ESI-Q-TOF), and the biological function and subcellular locations of the identified proteins were analyzed by bioinformatics.

[Identification of aging related proteins in human normal colonic epithelium].

Objective: To explore the molecular mechanisms of colonic epithelial aging related proteins and aged colonic epithelial susceptibility to tumor.

Methods: The proteins of normal human colonic epithelial tissue from young and old people were separated by 2-dimensional gel electrophoresis (2DGE), respectively. Then gels were stained by silver, scanned by imagescanner and analyzed with PDQuest software.