Month: June 2017

China’s first remote greenhouse gas sensing observatory starts operation in Hefei

The observatory operates a ground-based high-resolution Fourier transform spectrometer and measures the amount of carbon dioxide, methane, carbon monoxide, nitrous oxide and other trace gases in the Earth’s atmosphere. The station is part of an international network which validates satellite data, such as those from greenhouse gases observing satellite (GOSAT, Japan), Orbiting Carbon Observatory 2 […]

Group at CAS QIBEBT prepares biohybrid packaging material with shape retention from cross-linked cellulose

The groups of JIANG Yijun and WU Pingwei have crosslinked paper and regenerated cellulose to a composite (RCP) which showed unexpected mechanical strength at dry (tensile strength: 76 MPa, toughness at break: 7 MJ/m-1) and wet conditions (tensile strength: 13 MPa, toughness at break: 0.75 MJ/m-1), much higher than original paper. The composite had good […]

Jindong Pharmaceuticals and Donghua Software cooperate on „wisdom hospital“ internet health services

The services will include pre-clinical disease prevention, registration, mobile payment, report view, electronic prescription, drug sales distribution, follow-ups, rehabilitation guidance, etc. The concept is to help physical hospital out of geographical distance restrictions, greatly expand their service radius, and educate patients. Jingdong Pharmaceutical has already established self-employed retail pharmacies where a patient can shop from […]

CAS SIBS develops efficient genome editing system for Corynebacterium glutamicum

The group of YANG Sheng at CAS SIBS Key Laboratory of Synthetic Biology developed a a Francisella novicida CRISPR-Cpf1-based genome-editing method for C. glutamicum. Using CRISPR-Cpf1, combined with single-stranded DNA (ssDNA) recombineering, small changes could be precisely introduced into the bacterial genome at efficiencies of 86–100%. Using this method, each round of iterative metabolic engineering was achieved in as […]

Beijing consortium finds poly(oxime-urethanes) to be „recyclable polymers“

The team from CAS and Peking University observed that oxime-carbamate structures were reversible at about 100 °C through oxime-enabled transcarbamoylation via a thermally dissociative mechanism. Using this observation, they produced polyurethane-like poly(oxime-urethanes) (POUs) by uncatalyzed polyaddition of multifunctional oximes and hexamethylene diisocyanate (HDI) at ambient temperature. Kinetics studies showed almost complete polymerization (∼99% conversion) in […]

CAS Technical Institute of Physics and Chemistry synthesizes “Janus particles” on a large scale

“Janus particles” are defined by controllable topological and chemical anisotropy. In their study, Shutao WANG and colleagues chose a typical oil-in-water emulsion system, styrene (St) and divinyl benzene (DVB) in water emulsion, into which hydrophilic monomer (such as, acrylic acid (AA) or acrylamide (AM) et al. ) were introduced as anchoring molecules. The polymerization was […]

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