Results 131 to 140 of about 198,340 (317)

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

Advanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee, Hong Ju Jung, John Kim, Bum Chul Park, Caio V. C. R. da Silva, André F. de Moura, Nicholas A. Kotov   +6 more
wiley   +1 more source

Long-term fertilization increases the temperature sensitivity of OC mineralization in soil aggregates of a highland agroecosystem

, 2016
The mineralization of aggregate-associated organic carbon (OC) and the effect of long-term fertilization on its temperature sensitivity have not been addressed, but are critical for understandingOC sequestration and dynamics in agricultural soil ...
MingdeHao, Tiane Ma, Mingan Shao, Xingchang Zhang, YuhongWang, YanchunWei, XiaorongWei   +6 more
core   +1 more source

Dexime: A Selectively Enzyme‐Degradable Hydrogel for Protein Therapeutic Release

Advanced Materials, EarlyView.
A dextrin‐oxime hydrogel (dexime) is produced using ketone or aldehyde modified dextrin and tetra‐oxyamine modified poly(ethylene glycol). The rheological and mechanical properties of dexime are tunable. Dexime is injectable, cytocompatible, hydrolytically stable, and selectively degradable by α‐amylase.
Quinton E. A. Sirianni, Nitzan Letko Khait, Adam Forman, Edward A. Armstrong, Karim Fouad, Molly S. Shoichet   +5 more
wiley   +1 more source

Residual effects of soil fumigation on soil respiration and mineralization

, 1970
Soils were taken from fields that had been fumigated with formalin or methyl bromide 6 months to 5 years previously. Fumigated and unfumigated soil respired at similar rates when incubated in the laboratory.
Jenkinson, D. S., Powlson, D. S.
core   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Underground Coal Gasification Induced Multi-Physical Field Evolution and Overlying Strata Fracture Propagation: A Case Study Targeting Deep Steeply Inclined Coal Seams

Energies
Underground coal gasification (UCG) is a controlled combustion process of in situ coal that produces combustible gases through thermal and chemical reactions.
Jing Li, Shuguang Yang, Ziqiang Wang, Bin Zhang, Xin Li, Shuxun Sang   +5 more
doaj   +1 more source

Soil N mineralization profiles of co-existing woody vegetation islands at the alpine tree line

, 2017
Tree lines form a transition ecotone from forest to tundra both at high elevation and high latitude and occur in a number of different forms. Nitrogen (N) deficiency is considered to be a factor involved in tree line formation, and also N dynamics are ...
Wang, LX, Godbold, DL, Wang, LX (reprint author), Univ Bodenkultur BOKU, Inst Forest Ecol, A-1190 Vienna, Austria., Wang, LX (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Biodivers Conservat Key Lab Sichuan Prov, Chengdu 610041, Sichuan, Peoples R China., Wang, LX (reprint author), Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu 610041, Sichuan, Peoples R China.   +4 more
core   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

Advanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee, Moon‐Jo Kim, DongEung Kim, Chan Ho Moon, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Jong Hwa Seo, Junhyub Jeon, Junhyuk Son, Munwon Lim, Minho Kang, Dong Yun Lee, Donghyun Lim, Jung‐Hoon Park, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Kisuk Yang, Yunho Jeong, Youngho Eom, Hyun‐Do Jung   +21 more
wiley   +1 more source

High Spatial Resolution U-Pb Dating of Low-Uranium Calcite Using LA-MC-ICP-MS

Yankuang ceshi
The combination of carbonate minerals with the U-Pb isotope dating system provides direct temporal constraints for geoscientific applications. LA-MC-ICP-MS with its high sensitivity and accuracy, has been successfully applied to the high spatial ...
Chenxi ZHANG, Yuxin XIONG, Jiali FU, Wei ZHAO, Lei SHU, Zengsheng LI, Jun XU, Changxiang ZHOU, Fei HONG   +8 more
doaj   +1 more source

Nitrogen mineralization in temperate agricultural soils: processes and measurement

, 1996
Soils form a major repository of nitrogen (N) within both natural and agricultural terrestrial ecosystems, containing, on a global basis, an estimated 2.4 x 1011 tons of N.
Shepherd, M. A., Mark A. Shepherd, Powlson, D. S., David S. Powlson, Jarvis, S. C., Stephen C. Jarvis, Elizabeth A. Stockdale, Stockdale, E. A.   +7 more
core   +1 more source