Results 61 to 70 of about 134,803 (296)

Trophic Diversity in Duckweed: Mixotrophy, More Than the Sum of its Extremes

Advanced Science, EarlyView.
In the context of rising DOC in aquatic environments, mixotrophic duckweed may impact carbon cycling by acting as either a carbon sink, as they absorb CO2 through photosynthesis, or a carbon source, as they release CO2 through respiration of absorbed DOC, which depends on DOC concentration, light availability, temperature, and other environmental ...
Zuoliang Sun, Yan Chen, Fajun Li, Xuyao Zhao, Qingxiang Han, Hongwei Hou   +5 more
wiley   +1 more source

Protocol for producing hyperpolarized 13C-bicarbonate for clinical MRI of extracellular pH in aggressive tumors

STAR Protocols
Summary: Tumor acidosis is one of the hallmarks indicating the initiation and progression of various cancers. Here, we present a protocol for preparing a hyperpolarized (HP) 13C-bicarbonate tissue pH MRI imaging contrast agent to detect aggressive tumors.
Changhua Mu, Xiaoxi Liu, Andrew Riselli, James Slater, Evelyn Escobar, Duy Dang, Scott Drapeau, Romelyn Delos Santos, Stacy Andosca, Hao Nguyen, Peder E.Z. Larson, Robert Bok, Daniel B. Vigneron, John Kurhanewicz, David M. Wilson, Robert R. Flavell   +15 more
doaj   +1 more source

Aptamer‐Targeted PrPC Drives Colorectal Cancer Metastasis via a LYN‐STAT3 Complex and Enables Liquid Biopsy Detection

Advanced Science, EarlyView.
The aptamer WHY‐3E identifies PrPC as a CRC driver. Stabilized by USP18, endocytosed PrPC forms a LYN/STAT3 complex, upregulating MSN transcription to promote metastasis. Crucially, WHY‐3E sensitively detects PrPC‐positive circulating exosomes, establishing a robust theoretical foundation for non‐invasive clinical diagnostics.
Chunlin Wang, Hongyu Wu, Chaojing Zheng, Hao Zhang, Xiaoqiu Wu, Jiaqi Wang, Zewen Chang, Jun Xiang, Yunxiao Liu, Chenkai Zhang, Yuliuming Wang, Hao Jiang, Yuchen Zhong, Jun Luo, Ying Chen, NaNa Zhang, Weiyuan Zhang, Ziming Yuan, ChaoXia Zou, Weihong Tan, Meng Wang, Hanqing Hu, Tao Bing, Guiyu Wang   +23 more
wiley   +1 more source

The Effects of Carbonation and Elevated Temperatures on the Properties of Magnesium-Based Mortar

Applied Sciences
Reactive MgO cement can substitute Portland cement in constructions for numerous purposes. While hydration of MgO yields a low-strength material, incorporation of additives, CO2 and heat curing can improve strength development.
Neslişah Aytimur, Serhan Ulukaya, Abdullah Huzeyfe Akca   +2 more
doaj   +1 more source

Experimental study of nanoparticles as catalyst in enhancing matrix acidizing for carbonate reservoir

Journal of Petroleum Exploration and Production Technology, 2019
Hydrochloric (HCl) acid is the most common stimulating fluid used in acidizing job due to its strong acidic property and low cost to create or enlarge existing wormhole within the reservoir.
Gomathi Selvaraj, Belladonna Maulianda, Sia Chee Wee, Nur Asyraf Md Akhir, Khaled Abdalla Elraies, Reza Malakooti, Aruvin Prakasan   +6 more
doaj   +1 more source

Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework

Advanced Science, EarlyView.
The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu, Yingtang Zhou, Kai Wang, Xiaoyun Fan, Yang Ding, Wai‐Yeung Wong, Linli Xu   +6 more
wiley   +1 more source

One-pot synthesis of pyridines using recovered ammonium carbonate

Sustainability Science and Technology
The use of active nitrogen emitted from social activities, pyridine derivatives were synthesized from ammonium carbonate and ethanol in a single reactor system.
Yuichi Manaka, Fusuke Otaki, Chandan Chaudhari, Kohei Hashiguchi, Daisuke Kobayashi, Tetsuya Nanba, Ken Motokura   +6 more
doaj   +1 more source

Ion chromatography of major anions in the Neeru stream, Bhaderwah, J&K, India

Environment Conservation Journal, 2018
Water samples from 25 different stations along the Neeru stream and its tributaries / sub-tributaries has been collected and analysed for anions viz., Fluoride, Chloride, Nitrate, Phosphate and Sulphate for two years (Jan 2014- Dec 2015) by using Ion ...
Ravinder Kumar , N. Sharma, A. K. Raina   +2 more
doaj   +1 more source

Liquid vertical bar liquid electrochemical bicarbonate and carbonate capture facilitated by boronic acids

, 2011
Reversible bicarbonate and carbonate liquid|liquid ion transfer processes from aqueous solution into an organic 4-(3-phenylpropyl)pyridine phase are driven electrochemically with TPPMn(III/II) and shown to be facilitated over a wide pH range by 2 ...
Marken, Frank（Univ Bath, Dept Chem）, Collins, Andrew M.（Univ Bath, Dept Chem）, Watkins, John D.（Univ Bath, Dept Chem）, James, Tony D.（Univ Bath, Dept Chem）, Bull, Steven D.（Univ Bath, Dept Chem）, Huang, Yan-Jun, 江云宝, Katif, Najoua（Univ Bath, Dept Chem）, Jiang, Yun-Bao   +8 more
core   +1 more source

Operando Raman Spectroscopy Reveals Backpressure‐Controlled Dynamics in Diluted CO2 Electrolysis

Advanced Science, EarlyView.
High backpressure operation governs the CO2 reduction reaction (eCO2RR) kinetics and selectivity, as well as the CO2 and water dynamics, as revealed through operando Raman spectroelectrochemical measurement. Operating eCO2RR near diffusion‐limited conditions provides a platform for investigating the competition between eCO2RR and the hydrogen evolution
Muhammad Adib Abdillah Mahbub, Bashir Eid, Kinran Lau, Nini Zhang, Thomas Quast, Ann Cathrin Brix, Debanjan Das, Wolfgang Schuhmann   +7 more
wiley   +1 more source