Copper price falls with China absent for Lunar New Year.
Copper rallied strongly in early January, reaching a seven-month high of $9,550.50 a tonne on Jan. 18, as the dollar weakened and speculators bet that the end of China’s covid-19 restrictions would boost economic growth and metals demand.
The market is waiting for data from China after its New Year celebrations, said WisdomTree commodity strategist Nitesh Shah.Even if Chinese growth revives, the global economy is expected to face a challenging year marked by geopolitical tensions, high inflation, and the energy crisis, according to the Eurochambres global economic survey published on Wednesday.
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Design and Fabrication of Flexible Copper Sensor Decorated with Bismuth Micro/Nanodentrites to Detect Lead and Cadmium in Noninvasive Samples of SweatThe use of economic methods to design and fabricate flexible copper sensors decorated with bismuth micro/nanodentrites for the detection of lead and cadmium in sweat is demonstrated. The flexible copper sensors were constructed with simple and cost-effective materials; namely, flexible and adhesive conductive copper tape, adhesive label containing the design of a three-electrode electrochemical system, and nail polish or spray as a protective layer. The flexible copper device consisted of a working electrode decorated with bismuth micro/nanodentrites using an electrodeposition technique, a copper pseudo-reference and copper counter electrodes. Under optimal experimental conditions, the flexible sensing platform showed excellent performance toward the detection of lead and cadmium using differential pulse anodic stripping voltammetry (DPAdSV) in a wide linear range from 2.0 μM to 50 μM with acceptable reproducibility and repeatability, and limits of detection and quantification of 5.36 and 17.9 μM for Cd2+ ions and 0.76 μM and 2.5 for Pb2+ ions. Studies of addition and recovery in spiked artificial sweat sample were performed, with a recovery of 104.6%. The flexible copper device provides a great opportunity for application in wearable perspiration-based healthcare systems or portable sensors to detect toxic metals in biological samples.
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Security concerns in Seattle sparked by deadly Lunar New Year shooting in CaliforniaA deadly mass shooting in southern California sparked security concerns in Seattle at Sunday afternoon’s Lunar New Year celebration on Pier 62. Still, those concerns did not prevent a large crowd from showing up.
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Asian community reeling after Lunar New Year shootingCelebrations were marred by tragedy Saturday night after a gunman entered a ballroom dance hall and opened fire, killing 10 people, wounding 10 more and sending panicked revelers into the streets.
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Lunar New Year in NYC: How Chinatown is celebrating the Year of the RabbitCongresswoman Grace Meng tells HsuTV about the renewed effort to make Lunar New Year a federal holiday.
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Lunar New Year massacre: Possible motive for Monterey Park gunman Huu Can Tran72-year-old Huu Can Tran is suspected of opening fire at a dance studio in Monterey Park, killing 10 people and injuring 10 more as the city’s large Asian American community was celebrating Lunar New Year weekend.
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Lunar New Year massacre: Victims of the Monterey Park mass shootingTen people were killed in the Monterey Park mass shooting Saturday night at a ballroom dance studio amid Lunar New Year celebrations.
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