Manfred Wilhelm and co‐workers describe an alternative method to use the difference in salt concentrations to generate energy through the use of hydrogels instead of semi‐permeable membranes in article number 1700112. The main advantage of this approach over the conventional osmotic power plant is that hydrogels are much less expensive than high‐tech semi‐permeable membranes. This means that the hydrogels are inexpensive to replace in case of pollution (e.g. by seaweed).

中文翻译：

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渗透引擎：通过基于聚丙烯酸的水凝胶将渗透压转换为宏观机械力（Adv。Sci。9/2017）

曼弗雷德·威廉（Manfred Wilhelm）及其同事在编号1700112中描述了一种替代方法，该方法利用盐浓度的差异通过使用水凝胶代替半渗透膜来产生能量。与传统的渗透式发电厂相比，这种方法的主要优势在于：水凝胶比高科技的半透膜便宜得多。这意味着在污染（例如被海藻）污染的情况下，更换水凝胶的价格便宜。